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ar Sea Turtle Ears Inspire a New Heart Monitor Design By spectrum.ieee.org Published On :: Thu, 02 May 2024 14:14:33 +0000 This article is part of our exclusive IEEE Journal Watch series in partnership with IEEE Xplore.Sea turtles are remarkable creatures for a number of reasons, including the way they hear underwater—not through openings in the form of ears, but by detecting vibrations directly through the skin covering their auditory system. Inspired by this ability to detect sound through skin, researchers in China have created a heart-monitoring system, which initial tests in humans suggest may be a viable for monitoring heartbeats. A key way in which doctors monitor heart health involves “listening” to the heartbeat, either using a stethoscope or more sophisticated technology, like echocardiograms. However, these approaches require a visit to a specialist, and so researchers have been keen to develop alternative, lower cost solutions that people can use at home, which could also allow for more frequent testing and monitoring. Junbin Zang, a lecturer at the North University of China, and his colleagues specialize in creating heart-monitoring technologies. Their interest was piqued when they learned about the inner workings of the sea turtle’s auditory system, which is able to detect low-frequency signals, especially in the 300- to 400-hertz range.“Heart sounds are also low-frequency signals, so the low-frequency characteristics of the sea turtle’s ear have provided us with great inspiration,” explains Zang. At a glance, it looks like turtles don’t have ears. Their auditory system instead lies under a layer of skin and fat, through which it picks up vibrations. As with humans, a small bone in the ear vibrates as sounds hit it, and as it oscillates, those pulses are converted to electrical signals that are sent to the brain for processing and interpretation. iStock But sea turtles have a unique, slender T-shaped conduit that encapsulates their ear bones, restricting the movement of the similarly T-shaped ear bones to only vibrate in a perpendicular manner. This design provides their auditory system with high sensitivity to vibrations. Zang and his colleagues set out to create a heart monitoring system with similar features. They created a T-shaped heart-sound sensor that imitates the ear bones of sea turtles using a tiny MEMS cantilever beam sensor. As sound hits the sensor, the vibrations cause deformations in its beam, and the fluctuations in the voltage resistance are then translated into electrical signals. The researchers first tested the sensor’s ability to detect sound in lab tests, and then tested the sensor’s ability to monitor heartbeats in two human volunteers in their early 20s. The results, described in a study published 1 April in IEEE Sensors Journal, show that the sensor can effectively detect the two phases of a heartbeat.“The sensor exhibits excellent vibration characteristics,” Zang says, noting that it has a higher vibration sensitivity compared to other accelerometers on the market. However, the sensor currently picks up a significant amount of background noise, which Zang says his team plans to address in future work. Ultimately, they are interested in integrating this novel bioinspired sensor into devices they have previously created—including portable handheld and wearable versions, and a relatively larger version for use in hospitals—for the simultaneous detection of electrocardiogram and phonocardiogram signals. This article appears in the July 2024 print issue as “Sea Turtles Inspire Heart-Monitor Design.” Full Article Heart monitor Biosensors Journal watch
ar “Snake-like” Probe Images Arteries from Within By spectrum.ieee.org Published On :: Wed, 15 May 2024 18:00:04 +0000 Neurosurgeon Vitor Mendes Pereira has grown accustomed to treating brain aneurysms with only blurry images for guidance.Equipped with a rough picture of the labyrinthine network of arteries in the brain, he does his best to insert mesh stents or coils of platinum wire—interventions intended to promote clotting and to seal off a bulging blood vessel.The results are not always perfect. Without a precise window into the arterial architecture at the aneurysm site, Pereira says that he and other neurovascular specialists occasionally misplace these implants, leaving patients at a heightened risk of stroke, clotting, inflammation, and life-threatening ruptures. But a new fiber-optic imaging probe offers hope for improved outcomes. Pereira et al./Science Translational MedicineAccording to Pereira’s early clinical experience, the technology—a tiny snake-like device that winds its way through the intricate maze of brain arteries and, using spirals of light, captures high-resolution images from the inside-out—provides an unprecedented level of structural detail that enhances the ability of clinicians to troubleshoot implant placement and better manage disease complications.“We can see a lot more information that was not accessible before,” says Pereira, director of endovascular research and innovation at St. Michael’s Hospital in Toronto. “This is, for us, an incredible step forward.”And not just for brain aneurysms. In a report published today in Science Translational Medicine, Pereira and his colleagues describe their first-in-human experience using the platform to guide treatment for 32 people with strokes, artery hardening, and various other conditions arising from aberrant blood vessels in the brain.Whereas before, with technologies such as CT scans, MRIs, ultrasounds, and x-rays, clinicians had a satellite-like view of the brain’s vascular network, now they have a Google Street View-like perspective, complete with in-depth views of artery walls, plaques, immune cell aggregates, implanted device positions, and more.“The amount of detail you could get you would never ever see with any other imaging modality,” says Adnan Siddiqui, a neurosurgeon at the University at Buffalo, who was not involved in the research. “This technology holds promise to be able to really transform the way we evaluate success or failure of our procedures, as well as to diagnose complications before they occur.”A Decade of Innovation The new fiber-optic probe is flexible enough to snake through the body’s arteries and provide previously unavailable information to surgeons.Pereira et al./Science Translational MedicineThe new imaging platform is the brainchild of Giovanni Ughi, a biomedical engineer at the University of Massachusetts’ Chan Medical School in Worcester. About a decade ago, he set out to adapt a technique called optical coherence tomography (OCT) for imaging inside the brain’s arteries.OCT relies on the backscattering of near-infrared light to create cross-sectional images with micrometer-scale spatial resolution. Although OCT had long been used in clinical settings to generate pictures from the back of the eye and from inside the arteries that supply blood to the heart, the technology had proven difficult to adapt for brain applications owing to several technical challenges.One major challenge is that the fiber-optic probes used in the technology are typically quite stiff, making them too rigid to twist and bend through the convoluted passageways of the brain’s vasculature. Additionally, the torque cables—traditionally used to rotate the OCT lens to image surrounding vessels and devices in three dimensions as the probe retracts—were too large to fit inside the catheters that are telescopically advanced into the brain’s arteries to address blockages or other vascular issues.“We had to invent a new technology,” Ughi explains. “Our probe had to be very, very flexible, but also very, very small to be compatible with the clinical workflow.”To achieve these design criteria, Ughi and his colleagues altered the properties of the glass at the heart of their fiber-optic cables, devised a new system of rotational control that does away with torque cables, miniaturized the imaging lens, and made a number of other engineering innovations.The end result: a slender probe, about the size of a fine wire, that spins 250 times per second, snapping images as it glides back through the blood vessel. Researchers flush out blood cells with a tablespoon of liquid, then manually or automatically retract the probe, revealing a section of the artery about the length of a lip balm tube. St. Michael’s Foundation Clinical ConfirmationAfter initial testing in rabbits, dogs, pigs, and human cadavers, Ughi’s team sent the device to two clinical groups: Pereira’s in Toronto and Pedro Lylyk’s at the Sagrada Familia Clinic in Buenos Aires, Argentina. Across the two groups, neurosurgeons treated the 32 participants in the latest study, snaking the imaging probe through the patients’ groins or wrists and into their brains.The procedure was safe and well-tolerated across different anatomies, underlying disease conditions, and the complexity of prior interventions. Moreover, the information provided frequently led to actionable insights—in one case, prompting clinicians to prescribe anti-platelet drugs when hidden clots were discovered; in another, aiding in the proper placement of stents that were not flush against the arterial wall.“We were successful in every single case,” Ughi says. “So, this was a huge confirmation that the technology is ready to move forward.”“We can see a lot more information that was not accessible before.” —Vitor Mendes Pereira, St. Michael’s HospitalA startup called Spryte Medical aims to do just that. According to founder and CEO David Kolstad, the company is in discussions with regulatory authorities in Europe, Japan, and the United States to determine the steps necessary to bring the imaging probe to market.At the same time, Spryte—with Ughi as senior director of advanced development and software engineering—is working on machine learning software to automate the image analysis process, thus simplifying diagnostics and treatment planning for clinicians.Bolstered by the latest data, cerebrovascular specialists like Siddiqui now say they are chomping at the bit to get their hands on the imaging probe once it clears regulatory approval.“I’m really impressed,” Siddiqui says. “This is a tool that many of us who do these procedures wish they had.” Full Article Optical coherence tomography Fiber optics Brain imaging
ar Is AI Search a Medical Misinformation Disaster? By spectrum.ieee.org Published On :: Thu, 13 Jun 2024 13:00:04 +0000 Last month when Google introduced its new AI search tool, called AI Overviews, the company seemed confident that it had tested the tool sufficiently, noting in the announcement that “people have already used AI Overviews billions of times through our experiment in Search Labs.” The tool doesn’t just return links to Web pages, as in a typical Google search, but returns an answer that it has generated based on various sources, which it links to below the answer. But immediately after the launch users began posting examples of extremely wrong answers, including a pizza recipe that included glue and the interesting fact that a dog has played in the NBA. Renée DiResta has been tracking online misinformation for many years as the technical research manager at Stanford’s Internet Observatory.While the pizza recipe is unlikely to convince anyone to squeeze on the Elmer’s, not all of AI Overview’s extremely wrong answers are so obvious—and some have the potential to be quite harmful. Renée DiResta has been tracking online misinformation for many years as the technical research manager at Stanford’s Internet Observatory and has a new book out about the online propagandists who “turn lies into reality.” She has studied the spread of medical misinformation via social media, so IEEE Spectrum spoke to her about whether AI search is likely to bring an onslaught of erroneous medical advice to unwary users.I know you’ve been tracking disinformation on the Web for many years. Do you expect the introduction of AI-augmented search tools like Google’s AI Overviews to make the situation worse or better?Renée DiResta: It’s a really interesting question. There are a couple of policies that Google has had in place for a long time that appear to be in tension with what’s coming out of AI-generated search. That’s made me feel like part of this is Google trying to keep up with where the market has gone. There’s been an incredible acceleration in the release of generative AI tools, and we are seeing Big Tech incumbents trying to make sure that they stay competitive. I think that’s one of the things that’s happening here. We have long known that hallucinations are a thing that happens with large language models. That’s not new. It’s the deployment of them in a search capacity that I think has been rushed and ill-considered because people expect search engines to give them authoritative information. That’s the expectation you have on search, whereas you might not have that expectation on social media.There are plenty of examples of comically poor results from AI search, things like how many rocks we should eat per day [a response that was drawn for an Onion article]. But I’m wondering if we should be worried about more serious medical misinformation. I came across one blog post about Google’s AI Overviews responses about stem-cell treatments. The problem there seemed to be that the AI search tool was sourcing its answers from disreputable clinics that were offering unproven treatments. Have you seen other examples of that kind of thing?DiResta: I have. It’s returning information synthesized from the data that it’s trained on. The problem is that it does not seem to be adhering to the same standards that have long gone into how Google thinks about returning search results for health information. So what I mean by that is Google has, for upwards of 10 years at this point, had a search policy called Your Money or Your Life. Are you familiar with that?I don’t think so.DiResta: Your Money or Your Life acknowledges that for queries related to finance and health, Google has a responsibility to hold search results to a very high standard of care, and it’s paramount to get the information correct. People are coming to Google with sensitive questions and they’re looking for information to make materially impactful decisions about their lives. They’re not there for entertainment when they’re asking a question about how to respond to a new cancer diagnosis, for example, or what sort of retirement plan they should be subscribing to. So you don’t want content farms and random Reddit posts and garbage to be the results that are returned. You want to have reputable search results.That framework of Your Money or Your Life has informed Google’s work on these high-stakes topics for quite some time. And that’s why I think it’s disturbing for people to see the AI-generated search results regurgitating clearly wrong health information from low-quality sites that perhaps happened to be in the training data.So it seems like AI overviews is not following that same policy—or that’s what it appears like from the outside?DiResta: That’s how it appears from the outside. I don’t know how they’re thinking about it internally. But those screenshots you’re seeing—a lot of these instances are being traced back to an isolated social media post or a clinic that’s disreputable but exists—are out there on the Internet. It’s not simply making things up. But it’s also not returning what we would consider to be a high-quality result in formulating its response.I saw that Google responded to some of the problems with a blog post saying that it is aware of these poor results and it’s trying to make improvements. And I can read you the one bullet point that addressed health. It said, “For topics like news and health, we already have strong guardrails in place. In the case of health, we launched additional triggering refinements to enhance our quality protections.” Do you know what that means?DiResta: That blog posts is an explanation that [AI Overviews] isn’t simply hallucinating—the fact that it’s pointing to URLs is supposed to be a guardrail because that enables the user to go and follow the result to its source. This is a good thing. They should be including those sources for transparency and so that outsiders can review them. However, it is also a fair bit of onus to put on the audience, given the trust that Google has built up over time by returning high-quality results in its health information search rankings.I know one topic that you’ve tracked over the years has been disinformation about vaccine safety. Have you seen any evidence of that kind of disinformation making its way into AI search?DiResta: I haven’t, though I imagine outside research teams are now testing results to see what appears. Vaccines have been so much a focus of the conversation around health misinformation for quite some time, I imagine that Google has had people looking specifically at that topic in internal reviews, whereas some of these other topics might be less in the forefront of the minds of the quality teams that are tasked with checking if there are bad results being returned.What do you think Google’s next moves should be to prevent medical misinformation in AI search?DiResta: Google has a perfectly good policy to pursue. Your Money or Your Life is a solid ethical guideline to incorporate into this manifestation of the future of search. So it’s not that I think there’s a new and novel ethical grounding that needs to happen. I think it’s more ensuring that the ethical grounding that exists remains foundational to the new AI search tools. Full Article Ai search Google Disinformation Generative ai Large language models Health Medicine Search
ar Biocompatible Mic Could Lead to Better Cochlear Implants By spectrum.ieee.org Published On :: Mon, 22 Jul 2024 12:00:02 +0000 Cochlear implants—the neural prosthetic cousins of standard hearing aids—can be a tremendous boon for people with profound hearing loss. But many would-be users are turned off by the device’s cumbersome external hardware, which must be worn to process signals passing through the implant. So researchers have been working to make a cochlear implant that sits entirely inside the ear, to restore speech and sound perception without the lifestyle restrictions imposed by current devices.A new biocompatible microphone offers a bridge to such fully internal cochlear implants. About the size of a grain of rice, the microphone is made from a flexible piezoelectric material that directly measures the sound-induced motion of the eardrum. The tiny microphone’s sensitivity matches that of today’s best external hearing aids.Cochlear implants create a novel pathway for sounds to reach the brain. An external microphone and processor, worn behind the ear or on the scalp, collect and translate incoming sounds into electrical signals, which get transmitted to an electrode that’s surgically implanted in the cochlea, deep within the inner ear. There, the electrical signals directly stimulate the auditory nerve, sending information to the brain to interpret as sound.But, says Hideko Heidi Nakajima, an associate professor of otolaryngology at Harvard Medical School and Massachusetts Eye and Ear, “people don’t like the external hardware.” They can’t wear it while sleeping, or while swimming or doing many other forms of exercise, and so many potential candidates forgo the device altogether. What’s more, incoming sound goes directly into the microphone and bypasses the outer ear, which would otherwise perform the key functions of amplifying sound and filtering noise. “Now the big idea is instead to get everything—processor, battery, microphone—inside the ear,” says Nakajima. But even in clinical trials of fully internal designs, the microphone’s sensitivity—or lack thereof—has remained a roadblock.Nakajima, along with colleagues from MIT, Harvard, and Columbia University, fabricated a cantilever microphone that senses the motion of a bone attached behind the eardrum called the umbo. Sound entering the ear canal causes the umbo to vibrate unidirectionally, with a displacement 10 times as great as other nearby bones. The tip of the “UmboMic” touches the umbo, and the umbo’s movements flex the material and produce an electrical charge through the piezoelectric effect. These electrical signals can then be processed and transmitted to the auditory nerve. “We’re using what nature gave us, which is the outer ear,” says Nakajima.Why a cochlear implant needs low-noise, low-power electronicsMaking a biocompatible microphone that can detect the eardrum’s minuscule movements isn’t easy, however. Jeff Lang, a professor of electrical engineering at MIT who jointly led the work, points out that only certain materials are tolerated by the human body. Another challenge is shielding the device from internal electronics to reduce noise. And then there’s long-term reliability. “We’d like an implant to last for decades,” says Lang. In tests of the implantable microphone prototype, a laser beam measures the umbo’s motion, which gets transferred to the sensor tip. JEFF LANG & HEIDI NAKAJIMAThe researchers settled on a triangular design for the 3-by-3-millimeter sensor made from two layers of polyvinylidene fluoride (PVDF), a biocompatible piezoelectric polymer, sandwiched between layers of flexible, electrode-patterned polymer. When the cantilever tip bends, one PVDF layer produces a positive charge and the other produces a negative charge—taking the difference between the two cancels much of the noise. The triangular shape provides the most uniform stress distribution within the bending cantilever, maximizing the displacement it can undergo before it breaks. “The sensor can detect sounds below a quiet whisper,” says Lang.Emma Wawrzynek, a graduate student at MIT, says that working with PVDF is tricky because it loses its piezoelectric properties at high temperatures, and most fabrication techniques involve heating the sample. “That’s a challenge especially for encapsulation,” which involves encasing the device in a protective layer so it can remain safely in the body, she says. The group had success by gradually depositing titanium and gold onto the PVDF while using a heat sink to cool it. That approach created a shielding layer that protects the charge-sensing electrodes from electromagnetic interference.The other tool for improving a microphone’s performance is, of course, amplifying the signal. “On the electronics side, a low-noise amp is not necessarily a huge challenge to build if you’re willing to spend extra power,” says Lang. But, according to MIT graduate student John Zhang, cochlear implant manufacturers try to limit power for the entire device to 5 milliwatts, and just 1 mW for the microphone. “The trade-off between noise and power is hard to hit,” Zhang says. He and fellow student Aaron Yeiser developed a custom low-noise, low-power charge amplifier that outperformed commercially available options.“Our goal was to perform better than or at least equal the performance of high-end capacitative external microphones,” says Nakajima. For leading external hearing-aid microphones, that means sensitivity down to a sound pressure level of 30 decibels—the equivalent of a whisper. In tests of the UmboMic on human cadavers, the researchers implanted the microphone and amplifier near the umbo, input sound through the ear canal, and measured what got sensed. Their device reached 30 decibels over the frequency range from 100 hertz to 6 kilohertz, which is the standard for cochlear implants and hearing aids and covers the frequencies of human speech. “But adding the outer ear’s filtering effects means we’re doing better [than traditional hearing aids], down to 10 dB, especially in speech frequencies,” says Nakajima.Plenty of testing lies ahead, at the bench and on sheep before an eventual human trial. But if their UmboMic passes muster, the team hopes that it will help more than 1 million people worldwide go about their lives with a new sense of sound.The work was published on 27 June in the Journal of Micromechanics and Microengineering. Full Article Hearing aids Cochlear implant Medical devices Assistive technology Medical implants
ar Startups Launch Life-Saving Tech for the Opioid Crisis By spectrum.ieee.org Published On :: Thu, 08 Aug 2024 12:00:02 +0000 Tech startups are stepping up to meet the needs of 60 million people worldwide who use opioids, representing about 1 percent of the world’s adult population. In the United States, deaths involving synthetic opioids have risen 1,040 percent from 2013 to 2019. The COVID-19 pandemic and continued prevalence of fentanyl have since worsened the toll, with an estimated 81,083 fatal overdoses in 2023 alone. Innovations include biometric monitoring systems that help doctors determine proper medication dosages, nerve stimulators that relieve withdrawal symptoms, wearable and ingestible systems that watch for signs of an overdose, and autonomous drug delivery systems that could prevent overdose deaths. Helping Patients Get the Dosage They NeedFor decades, opioid blockers and other medications that suppress cravings have been the primary treatment tool for opioid addiction. However, despite its clinical dominance, this approach remains underutilized. In the United States, only about 22 percent of the 2.5 million adults with opioid use disorder receive medication-assisted therapy such as methadone, Suboxone, and similar drugs. Determining patients’ ideal dosage during the early stages of treatment is crucial for keeping them in recovery programs. The shift from heroin to potent synthetic opioids, like fentanyl, has complicated this process, as the typical recommended medication doses can be too low for those with a high fentanyl tolerance.A North Carolina-based startup is developing a predictive algorithm to help clinicians tailor these protocols and track real-time progress with biometric data. OpiAID, which is currently working with 1,000 patients across three clinical sites, recently launched a research pilot with virtual treatment provider Bicycle Health. Patients taking Suboxone will wear a Samsung Galaxy Watch6 to measure their heart rate, body movements, and skin temperature. OpiAID CEO David Reeser says clinicians can derive unique stress indications from this data, particularly during withdrawal. (He declined to share specifics on how the algorithm works.)“Identifying stress biometrically plays a role in how resilient someone will be,” Reeser adds. “For instance, poor heart rate variability during sleep could indicate that a patient may be more susceptible that day. In the presence of measurable amounts of withdrawal, the potential for relapse on illicit medications may be more likely.”Nerve Stimulators Provide Opioid Withdrawal Relief While OpiAID’s software solution relies on monitoring patients, electrical nerve stimulation devices take direct action. These behind-the-ear wearables distribute electrodes at nerve endings around the ear and send electrical pulses to block pain signals and relieve withdrawal symptoms like anxiety and nausea. The U.S. Food and Drug Administration (FDA) has cleared several nerve stimulator devices, such as DyAnsys’ Drug Relief, which periodically administers low-level electrical pulses to the ear’s cranial nerves. Others include Spark Biomedical’s Sparrow system and NET Recovery’s NETNeuro device. Masimo’s behind-the-ear Bridge device costs US $595 for treatment providers.MasimoSimilarly, Masimo’s Bridge relieves withdrawal symptoms by stimulating the brain and spinal cord via electrodes. The device is intended to help patients initiating, transitioning into, or tapering off medication-assisted treatment. In a clinical trial, Bridge reduced symptom severity by 85 percent in the first hour and 97 percent by the fifth day. A Masimo spokesperson said the company’s typical customers are treatment providers and correctional facilities, though it’s also seeing interest from emergency room physicians.Devices Monitor Blood Oxygen to Prevent Overdose DeathsIn 2023, the FDA cleared Masimo’s Opioid Halo device to monitor blood oxygen levels and alert emergency contacts if it detects opioid-induced respiratory depression, the leading cause of overdose deaths. The product includes a pulse oximeter cable and disposable sensors connected to a mobile app. Opioid Halo utilizes Masimo’s signal extraction technology, first developed in the 1990s, which improves upon conventional oxygen monitoring techniques by filtering out artifacts caused by blood movement. Masimo employs four signal-processing engines to distinguish the true signal from noise that can lead to false alarms; for example, they distinguish between arterial blood and low-oxygen venous blood. Masimo’s Opioid Halo system is available over-the-counter without a prescription. MasimoOpioid Halo is available over-the-counter for US $250. A spokesperson says sales have continued to show promise as more healthcare providers recommend it to high-risk patients.An Ingestible Sensor to Watch Over PatientsLast year, in a first-in-human clinical study, doctors used an ingestible sensor to monitor vital signs from patients’ stomachs. Researchers analyzed the breathing patterns and heart rates of 10 sleep study patients at West Virginia University. Some participants had episodes of central sleep apnea, which can be a proxy for opioid-induced respiratory depression. The capsule transmitted this data wirelessly to external equipment linked to the cloud. Celero’s Rescue-Rx capsule would reside in a user’s stomach for one week.Benjamin Pless/Celero Systems“To our knowledge, this is the first time anyone has demonstrated the ability to accurately monitor human cardiac and respiratory signals from an ingestible device,” says Benjamin Pless, one of the study’s co-authors. “This was done using very low-power circuitry including a radio, microprocessor, and accelerometer along with software for distinguishing various physiological signals.” Pless and colleagues from MIT and Harvard Medical School started Celero Systems to commercialize a modified version of that capsule, one that will also release an opioid antagonist after detecting respiratory depression. Pless, Celero’s CEO, says the team has successfully demonstrated the delivery of nalmefene, an opioid antagonist similar to Narcan, to rapidly reverse overdoses. Celero’s next step is integrating the vitals-monitoring feature for human trials. The company’s final device, Rescue-Rx, is intended to stay in the stomach for one week before passing naturally. Pless says Rescue-Rx’s ingestible format will make the therapy cheaper and more accessible than wearable autoinjectors or implants. Celero’s capsule can detect vital signs from within the stomach. www.youtube.com Autonomous Delivery of Overdose MedicationRescue-Rx isn’t the only autonomous drug-delivery project under development. A recent IEEE Transactions on Biomedical Circuits and Systems paper introduced a wrist-worn near-infrared spectroscopy sensor to detect low blood oxygen levels related to an overdose. Purdue University biomedical engineering professor Hugh Lee and graduate student Juan Mesa, who both co-authored the study, say that while additional human experiments are necessary, the findings represent a valuable tool in counteracting the epidemic. “Our wearable device consistently detected low-oxygenation events, triggered alarms, and activated the circuitry designed to release the antidote through the implantable capsule,” they wrote in an email. Lee and Purdue colleagues founded Rescue Biomedical to commercialize the A2D2 system, which includes a wristband and an implanted naloxone capsule that releases the drug if oxygen levels drop below 90 percent. Next, the team will evaluate the closed-loop system in mice. This story was updated on 27 August 2024 to correct the name of Masimo’s Opioid Halo device. Full Article Blood oxygen monitoring Electrical nerve stimulation Opioid addiction treatment Opioids Biometrics
ar Stretchy Wearables Can Now Heal Themselves By spectrum.ieee.org Published On :: Tue, 24 Sep 2024 11:00:03 +0000 If you’ve ever tried to get a bandage to stick to your elbow, you understand the difficulty in creating wearable devices that attach securely to the human body. Add digital electronic circuitry, and the problem becomes more complicated. Now include the need for the device to fix breaks and damage automatically—and let’s make it biodegradable while we’re at it—and many researchers would throw up their hands in surrender. Fortunately, an international team led by researchers at Korea University Graduate School of Converging Science and Technology (KU-KIST) persevered, and has developed conductor materials that it claims are stretchable, self-healing, and biocompatible. Their project was described this month in the journal Science Advances. The biodegradable conductor offers a new approach to patient monitoring and delivering treatments directly to the tissues and organs where they are needed. For example, a smart patch made of these materials could measure motion, temperature, and other biological data. The material could also be used to create sensor patches that can be implanted inside the body, and even mounted on the surface of internal organs. The biocompatible materials can be designed to degrade after a period of time, eliminating the need for an invasive procedure to remove the sensor later. “This new technology is a glimpse at the future of remote healthcare,” says Robert Rose, CEO of Rose Strategic Partners, LLC. “Remote patient monitoring is an industry still in its early stages, but already we are seeing the promise of what is not only possible, but close on the horizon. Imagine a device implanted at a surgical site to monitor and report your internal healing progress. If it is damaged, the device can heal itself, and when the job is done, it simply dissolves. It sounds like science fiction, but it’s now science fact.” Self-healing elastics After being cut a ribbonlike film was able to heal itself in about 1 minute.Suk-Won Hwang The system relies on two different layers of flexible material, both self-healing: one is for conduction and the other is an elastomer layer that serves as a substrate to support the sensors and circuitry needed to collect data. The conductor layer is based on a substance known by the acronym PEDOT:PSS, which is short for Poly(3,4-ethylenedioxythiophene) polystyrene sulfonate. It’s a conductive polymer widely used in making flexible displays and touch panels, as well as wearable devices. To increase the polymer’s conductivity and self-healing properties, the research team used additives including polyethylene glycol and glycol, which helped increase conductivity as well as the material’s ability to automatically repair damage such as cuts or tears. In order to conform to curved tissues and survive typical body motion, the substrate layer must be extremely flexible. The researchers based it on elastomers that can match the shape of curved tissues, such as skin or individual organs. These two layers stick to each other, thanks to chemical bonds that can connect the polymer chains of the plastic films in each layer. Combined, these materials create a system that is flexible and stretchable. In testing, the researchers showed that the materials could survive stretching up to 500 percent. The self-healing function arises from the material’s ability to reconnect to itself when cut or otherwise damaged. This self-healing feature is based on a chemical process called disulfide metathesis. In short, polymer molecules containing pairs of linked sulfur atoms, called disulfides, have the ability to reform themselves after being severed. The phenomenon arises from a chemical process called disulfide-disulfide shuffling reactions, in which disulfide bonds in the molecule break and then reform, not necessarily between the original partners. According to the KU-KIST researchers, after being cut, their material was able to recover conductivity in its circuits within about two minutes without any intervention. The material was also tested for bending, twisting, and its ability to function both in air and under water. This approach offers many advantages over other flexible electronics designs. For example, silver nanowires and carbon nanotubes have been used as the basis for stretchable devices, but they can be brittle and lack the self-healing properties of the KU-KIST materials. Other materials such as liquid metals can self-heal, but they are typically difficult to handle and integrate into wearable circuitry. As a demonstration, the team created a multifunction sensor that included humidity, temperature, and pressure sensors that was approximately 4.5 square centimeters. In spite of being cut in four separate locations, it was able to heal itself and continue to provide sensor readings. Implant tested in a rat To take the demonstration a step further, the researchers created a 1.8-cm2 device that was attached to a rat’s bladder. The device was designed to wrap around the bladder and then adhere to itself, so no adhesives or sutures were required to attach the sensor onto the bladder. The team chose the bladder for their experiments because, under normal conditions, its size can change by 300 percent. The device incorporated both electrodes and pressure sensors, which were able to detect changes in the bladder pressure. The electrodes could detect bladder voiding, through electromyography signals, as well as stimulate the bladder to induce urination. As with the initial demonstration, intentional damage to the device’s circuitry healed on its own, without intervention. The biocompatible and biodegradable nature of the materials is important because it means that devices fabricated with them can be worn on the skin, as well as implanted within the body. The fact that the materials are biodegradable means that implants would not need a second surgical procedure to remove them. They could be left in place after serving their purpose, and they would be absorbed by the body. According to Suk-Won Hwang, assistant professor at KU-KIST, a few hurdles remain on the path to commercialization. “We need to test the biocompatibility of some of the materials used in the conductor and substrate layers. While scalable production appears to be feasible, the high cost of disulfide derivatives might make the technology too expensive, aside from some special applications,” he says. “Biocompatibility testing and material synthesis optimization will take one to two years, at least.” Full Article Biodegradable devices Implanted sensors Selfhealing conductor Wearable devices Biodegradable electronics
ar This Eyewear Offers a Buckshot Method to Monitor Health By spectrum.ieee.org Published On :: Tue, 15 Oct 2024 13:00:03 +0000 Emteq Labs wants eyewear to be the next frontier of wearable health technology.The Brighton, England-based company introduced today its emotion-sensing eyewear, Sense. The glasses contain nine optical sensors distributed across the rims that detect subtle changes in facial expression with more than 93 percent accuracy when paired with Emteq’s current software. “If your face moves, we can capture it,” says Steen Strand, whose appointment as Emteq’s new CEO was also announced today. With that detailed data, “you can really start to decode all kinds of things.” The continuous data could help people uncover patterns in their behavior and mood, similar to an activity or sleep tracker. Emteq is now aiming to take its tech out of laboratory settings with real-world applications. The company is currently producing a small number of Sense glasses, and they’ll be available to commercial partners in December. The announcement comes just weeks after Meta and Snap each unveiled augmented reality glasses that remain in development. These glasses are “far from ready,” says Strand, who led the augmented reality eyewear division while working at Snap from 2018 to 2022. “In the meantime, we can serve up lightweight eyewear that we believe can deliver some really cool health benefits.” Fly Vision VectorsWhile current augmented reality (AR) headsets have large battery packs to power the devices, glasses require a lightweight design. “Every little bit of power, every bit of weight, becomes critically important,” says Strand. The current version of Sense weighs 62 grams, slightly heavier than the Ray-Ban Meta smart glasses, which weigh in at about 50 grams. Because of the weight constraints, Emteq couldn’t use the power-hungry cameras typically used in headsets. With cameras, motion is detected by looking at how pixels change between consecutive images. The method is effective, but captures a lot of redundant information and uses more power. The eyewear’s engineers instead opted for optical sensors that efficiently capture vectors when points on the face move due to the underlying muscles. These sensors were inspired by the efficiency of fly vision. “Flies are incredibly efficient at measuring motion,” says Emteq founder and CSO Charles Nduka. “That’s why you can’t swat the bloody things. They have a very high sample rate internally.”Sense glasses can capture data as often as 6,000 times per second. The vector-based approach also adds a third dimension to a typical camera’s 2D view of pixels in a single plane. These sensors look for activation of facial muscles, and the area around the eyes is an ideal spot. While it’s easy to suppress or force a smile, the upper half of our face tends to have more involuntary responses, explains Nduka, who also works as a plastic surgeon in the United Kingdom. However, the glasses can also collect information about the mouth by monitoring the cheek muscles that control jaw movements, conveniently located near the lower rim of a pair of glasses. The data collected is then transmitted from the glasses to pass through Emteq’s algorithms in order to translate the vector data into usable information. In addition to interpreting facial expressions, Sense can be used to track food intake, an application discovered by accident when one of Emteq’s developers was wearing the glasses while eating breakfast. By monitoring jaw movement, the glasses detect when a user chews and how quickly they eat. Meanwhile, a downward-facing camera takes a photo to log the food, and uses a large language model to determine what’s in the photo, effectively making food logging a passive activity. Currently, Emteq is using an instance of OpenAI’s GPT-4 large language model to accomplish this, but the company has plans to create their own algorithm in the future. Other applications, including monitoring physical activity and posture, are also in development. One Platform, Many UsesNduka believes Emteq’s glasses represent a “fundamental technology,” similar to how the accelerometer is used for a host of applications in smartphones, including managing screen orientation, tracking activity, and even revealing infrastructure damage. Similarly, Emteq has chosen to develop the technology as a general facial data platform for a range of uses. “If we went deep on just one, it means that all the other opportunities that can be helped—especially some of those rarer use cases—they’d all be delayed,” says Nduka. For example, Nduka is passionate about developing a tool to help those with facial paralysis. But a specialized device for those patients would have high unit costs and be unaffordable for the target user. Allowing more companies to use Emteq’s intellectual property and algorithms will bring down cost. In this buckshot approach, the general target for Sense’s potential use cases is health applications. “If you look at the history of wearables, health has been the primary driver,” says Strand. The same may be true for eyewear, and he says there’s potential for diet and emotional data to be “the next pillar of health” after sleep and physical activity. How the data is delivered is still to be determined. In some applications, it could be used to provide real-time feedback—for instance, vibrating to remind the user to slow down eating. Or, it could be used by health professionals only to collect a week’s worth of at-home data for patients with mental health conditions, which Nduka notes largely lack objective measures. (As a medical device for treatment of diagnosed conditions, Sense would have to go through a more intensive regulatory process.) While some users are hungry for more data, others may require a “much more gentle, qualitative approach,” says Strand. Emteq plans to work with expert providers to appropriately package information for users. Interpreting the data must be done with care, says Vivian Genaro Motti, an associate professor at George Mason University who leads the Human-Centric Design Lab. What expressions mean may vary based on cultural and demographic factors, and “we need to take into account that people sometimes respond to emotions in different ways,” Motti says. With little regulation of wearable devices, she says it’s also important to ensure privacy and protect user data. But Motti raises these concerns because there is a promising potential for the device. “If this is widespread, it’s important that we think carefully about the implications.” Privacy is also a concern to Edward Savonov, a professor of electrical and computer engineering at the University of Alabama, who developed a similar device for dietary tracking in his lab. Having a camera mounted on Emteq’s glasses could pose issues, both for the privacy of those around a user and a user’s own personal information. Many people eat in front of their computer or cell phone, so sensitive data may be in view. For technology like Sense to be adopted, Sazonov says questions about usability and privacy concerns must first be answered. “Eyewear-based technology has potential for a great future—if we get it right.” Full Article Wearables Smart glasses Openai Meta Health monitoring
ar Dean Kamen Says Inventing Is Easy, but Innovating Is Hard By spectrum.ieee.org Published On :: Wed, 16 Oct 2024 13:00:04 +0000 This article is part of our special report, “Reinventing Invention: Stories from Innovation’s Edge.” Over the past 20 years, technological advances have enabled inventors to go from strength to strength. And yet, according to the legendary inventor Dean Kamen, innovation has stalled. Kamen made a name for himself with inventions including the first portable insulin pump for diabetics, an advanced wheelchair that can climb steps, and the Segway mobility device. Here, he talks about his plan for enabling innovators. How has inventing changed since you started in the 1990s? Dean Kamen: Kids all over the world can now be inventing in the world of synthetic biology the way we played with Tinkertoys and Erector Sets and Lego. I used to put pins and smelly formaldehyde in frogs in high school. Today in high school, kids will do experiments that would have won you the Nobel Prize in Medicine 40 years ago. But none of those kids are likely in any short time to be on the market with a pharmaceutical that will have global impact. Today, while invention is getting easier and easier, I think there are some aspects of innovation that have gotten much more difficult. Can you explain the difference? Kamen: Most people think those two words mean the same thing. Invention is coming up with an idea or a thing or a process that has never been done that way before. [Thanks to] more access to technology and 3D printers and simulation programs and virtual ways to make things, the threshold to be able to create something new and different has dramatically lowered. Historically, inventions were only the starting point to get to innovation. And I’ll define an innovation as something that reached a scale where it impacted a piece of the world, or transformed it: the wheel, steam, electricity, Internet. Getting an invention to the scale it needs to be to become an innovation has gotten easier—if it’s software. But if it’s sophisticated technology that requires mechanical or physical structure in a very competitive world? It’s getting harder and harder to do due to competition, due to global regulatory environments. [For example,] in proteomics [the study of proteins] and genomics and biomedical engineering, the invention part is, believe it or not, getting a little easier because we know so much, because there are development platforms now to do it. But getting a biotech product cleared by the Food and Drug Administration is getting more expensive and time consuming, and the risks involved are making the investment community much more likely to invest in the next version of Angry Birds than curing cancer. A lot of ink has been spilled about how AI is changing inventing. Why hasn’t that helped? Kamen: AI is an incredibly valuable tool. As long as the value you’re looking for is to be able to collect massive amounts of data and being able to process that data effectively. That’s very different than what a lot of people believe, which is that AI is inventing and creating from whole cloth new and different ideas. How are you using AI to help with innovation? Kamen: Every medical school has incredibly brilliant professors and grad students with petri dishes. “Look, I can make nephrons. We can grow people a new kidney. They won’t need dialysis.” But they only have petri dishes full of the stuff. And the scale they need is hundreds and hundreds of liters. I started a not-for-profit called ARMI—the Advanced Regenerative Manufacturing Institute—to help make it practical to manufacture human cells, tissues, and organs. We are using artificial intelligence to speed up our development processes and eliminate going down frustratingly long and expensive [dead-end] paths. We figure out how to bring tissue manufacturing to scale. We build the bioreactors, sensor technologies, robotics, and controls. We’re going to put them together and create an industry that can manufacture hundreds of thousands of replacement kidneys, livers, pancreases, lungs, blood, bone, you name it. So ARMI’s purpose is to help would-be innovators? Kamen: We are not going to make a product. We’re not even going to make a whole company. We’re going to create baseline core technologies that will enable all sorts of products and companies to emerge to create an entire new industry. It will be an innovation in health care that will lower costs because cures are much cheaper than chronic treatments. We have to break down the barriers so that these fantastic inventions can become global innovations. This article appears in the November 2024 print issue as “The Inventor’s Inventor.” Full Article Invention Dean kamen Startups Bioengineering Tissue engineering
ar Crop Parasites Can Be Deterred by “Electric Fences” By spectrum.ieee.org Published On :: Thu, 17 Oct 2024 12:00:02 +0000 Imagine you’re a baby cocoa plant, just unfurling your first tentative roots into the fertile, welcoming soil.Somewhere nearby, a predator stirs. It has no ears to hear you, no eyes to see you. But it knows where you are, thanks in part to the weak electric field emitted by your roots.It is microscopic, but it’s not alone. By the thousands, the creatures converge, slithering through the waterlogged soil, propelled by their flagella. If they reach you, they will use fungal-like hyphae to penetrate and devour you from the inside. They’re getting closer. You’re a plant. You have no legs. There’s no escape.But just before they fall upon you, they hesitate. They seem confused. Then, en masse, they swarm off in a different direction, lured by a more attractive electric field. You are safe. And they will soon be dead.If Eleonora Moratto and Giovanni Sena get their way, this is the future of crop pathogen control.Many variables are involved in the global food crisis, but among the worst are the pests that devastate food crops, ruining up to 40 percent of their yield before they can be harvested. One of these—the little protist in the example above, an oomycete formally known as Phytophthora palmivora—has a US $1 billion appetite for economic staples like cocoa, palm, and rubber.There is currently no chemical defense that can vanquish these creatures without poisoning the rest of the (often beneficial) organisms living in the soil. So Moratto, Sena, and their colleagues at Sena’s group at Imperial College London settled on a non-traditional approach: They exploited P. palmivora’s electric sense, which can be spoofed.All plant roots that have been measured to date generate external ion flux, which translates into a very weak electric field. Decades of evidence suggests that this signal is an important target for predators’ navigation systems. However, it remains a matter of some debate how much their predators rely on plants’ electrical signatures to locate them, as opposed to chemical or mechanical information. Last year, Moratto and Sena’s group found that P. palmivora spores are attracted to the positive electrode of a cell generating current densities of 1 ampere per square meter. “The spores followed the electric field,” says Sena, suggesting that a similar mechanism helps them find natural bioelectric fields emitted by roots in the soil.That got the researchers wondering: Might such an artificial electric field override the protists’ other sensory inputs, and scramble their compasses as they tried to use plant roots’ much weaker electrical output?To test the idea, the researchers developed two ways to protect plant roots using a constant vertical electric field. They cultivated two common snacks for P. palmivora—a flowering plant related to cabbage and mustard, and a legume often used as a livestock feed plant—in tubes in a hydroponic solution. Two electric-field configurations were tested: A “global” vertical field [left] and a field generated by two small nearby electrodes. The global field proved to be slightly more effective.Eleonora MorattoIn the first assay, the researchers sandwiched the plant roots between rows of electrodes above and below, which completely engulfed them in a “global” vertical field. For the second set, the field was generated using two small electrodes a short distance away from the plant, creating current densities on the order of 10 A/m2. Then they unleashed the protists.With respect to the control group, both methods successfully diverted a significant portion of the predators away from the plant roots. They swarmed the positive electrode, where—since zoospores can’t survive for longer than about 2 to 3 hours without a host—they presumably starved to death. Or worse. Neil Gow, whose research presented some of the first evidence for zoospore electrosensing, has other theories about their fate. “Applied electrical fields generate toxic products and steep pH gradients near and around the electrodes due to the electrolysis of water,” he says. “The tropism towards the electrode might be followed by killing or immobilization due to the induced pH gradients.”Not only did the technique prevent infestation, but some evidence indicates that it may also mitigate existing infections. The researchers published their results in August in Scientific Reports.The global electric field was marginally more successful than the local. However, it would be harder to translate from lab conditions into a (literal) field trial in soil. The local electric field setup would be easy to replicate: “All you have to do is stick the little plug into the soil next to the crop you want to protect,” says Sena.Moratto and Sena say this is a proof of concept that demonstrates a basis for a new, pesticide-free way to protect food crops. (Sena likens the technique to the decoys used by fighter jets to draw away incoming missiles by mimicking the signals of the original target.) They are now looking for funding to expand the project. The first step is testing the local setup in soil; the next is to test the approach on Phytophthora infestans, a meaner, scarier cousin of P. palmivora.P. infestans attacks a more varied diet of crops—you may be familiar with its work during the Irish potato famine. The close genetic similarities imply another promising candidate for electrical pest control. This investigation, however, may require more funding. P. infestans research can be undertaken only under more stringent laboratory security protocols.The work at Imperial ties into the broader—and somewhat charged—debate around electrostatic ecology; that is, the extent to which creatures including ticks make use of heretofore poorly understood electrical mechanisms to orient themselves and in other ways enhance their survival. “Most people still aren’t aware that naturally occurring electricity can play an ecological role,” says Sam England, a behavioral ecologist with Berlin’s Natural History Museum. “So I suspect that once these electrical phenomena become more well known and understood, they will inspire a greater number of practical applications like this one.” Full Article Agriculture Electric fields Crops Pesticides
ar Scary Stories: Establishing a Field Amid Skepticism By spectrum.ieee.org Published On :: Wed, 30 Oct 2024 11:00:02 +0000 In the spirit of the Halloween season, IEEE Spectrum presents a pair of stories that—although grounded in scientific truth rather than the macabre—were no less harrowing for those who lived them. In today’s installment, Robert Langer had to push back against his field’s conventional wisdom to pioneer a drug-delivery mechanism vital to modern medicine.Nicknamed the Edison of Medicine, Robert Langer is one of the world’s most-cited researchers, with over 1,600 published papers, 1,400 patents, and a top-dog role as one of MIT’s nine prestigious Institute Professors. Langer pioneered the now-ubiquitous drug delivery systems used in modern cancer treatments and vaccines, indirectly saving countless lives throughout his 50-year career.But, much like Edison and other inventors, Langer’s big ideas were initially met with skepticism from the scientific establishment. He came up in the 1970s as a chemical engineering postdoc working in the lab of Dr. Judah Folkman, a pediatric surgeon at the Boston Children’s Hospital. Langer was tasked with solving what many believed was an impossible problem—isolating angiogenesis inhibitors to halt cancer growth. Folkman’s vision of stopping tumors from forming their own self-sustaining blood vessels was compelling enough, but few believed it possible. Langer encountered both practical and social challenges before his first breakthrough. One day, a lab technician accidentally spilled six months’ worth of samples onto the floor, forcing him to repeat the painstaking process of dialyzing extracts. Those months of additional work steered Langer’s development of novel microspheres that could deliver large molecules of medicine directly to tumors. In the 1970s, Langer developed these tiny microspheres to release large molecules through solid materials, a groundbreaking proof-of-concept for drug delivery.Robert LangerLanger then submitted the discovery to prestigious journals and was invited to speak at a conference in Michigan in 1976. He practiced the 20-minute presentation for weeks, hoping for positive feedback from respected materials scientists. But when he stepped off the podium, a group approached him and said bluntly, “We don’t believe anything you just said.” They insisted that macromolecules were simply too large to pass through solid materials, and his choice of organic solvents would destroy many inputs. Conventional wisdom said so.Nature published Langer’s paper three months later, demonstrating for the first time that non-inflammatory polymers could enable the sustained release of proteins and other macromolecules. The same year, Science published his isolation mechanism to restrict tumor growth. Langer and Folkman’s research paved the way for modern drug delivery.MIT and Boston Children’s Hospital Even with impressive publications, Langer still struggled to secure funding for his work in controlling macromolecule delivery, isolating the first angiogenesis inhibitors, and testing their behavior. His first two grant proposals were rejected on the same day, a devastating blow for a young academic. The reviewers doubted his experience as “just an engineer” who knew nothing about cancer or biology. One colleague tried to cheer him up, saying, “It’s probably good those grants were rejected early in your career. Since you’re not supporting any graduate students, you don’t have to let anyone go.” Langer thought the colleague was probably right, but the rejections still stung.His patent applications, filed alongside Folkman at the Boston Children’s Hospital, were rejected five years in a row. After all, it’s difficult to prove you’ve got something good if you’re the only one doing it. Langer remembers feeling disappointed but not crushed entirely. Eventually, other scientists cited his findings and expanded upon them, giving Langer and Folkman the validation needed for intellectual property development. As of this writing, the pair’s two studies from 1976 have been cited nearly 2,000 times.As the head of MIT’s Langer Lab, he often shares these same stories of rejection with early-career students and researchers. He leads a team of over 100 undergrads, grad students, postdoctoral fellows, and visiting scientists, all finding new ways to deliver genetically engineered proteins, DNA, and RNA, among other research areas. Langer’s reputation is further bolstered by the many successful companies he co-founded or advised, like mRNA leader Moderna, which rose to prominence after developing its widely used COVID-19 vaccine.Langer sometimes thinks back to those early days—the shattered samples, the cold rejections, and the criticism from senior scientists. He maintains that “Conventional wisdom isn’t always correct, and it’s important to never give up—(almost) regardless of what others say.” Full Article Cancer treatments Drug delivery Medicine Mit Moderna
ar What My Daughter’s Harrowing Alaska Airlines Flight Taught Me About Healthcare By medcitynews.com Published On :: Wed, 06 Nov 2024 15:11:00 +0000 As a leader who has committed much of his career to improving healthcare — an industry that holds millions of people’s lives in its hands — I took from this terrifying incident a new guiding principle. Healthcare needs to pursue a zero-failure rate. The post What My Daughter’s Harrowing Alaska Airlines Flight Taught Me About Healthcare appeared first on MedCity News. Full Article Daily Health IT MedCity Influencers Medical Education Providers clinician burnout failure health IT medical errors
ar Acadia Pharma Sells Voucher for Speedier FDA Drug Review for $150M By medcitynews.com Published On :: Wed, 06 Nov 2024 22:48:20 +0000 Acadia Pharmaceuticals did not disclose the buyer of the priority review voucher. The biotech received the voucher last year alongside the regulatory decision that made its drug Daybue the first FDA-approved treatment for the rare disease Rett syndrome. The post Acadia Pharma Sells Voucher for Speedier FDA Drug Review for $150M appeared first on MedCity News. Full Article BioPharma Daily Legal Pharma Acadia Pharmaceuticals biopharma nl Daybue FDA priority review voucher Rett syndrome
ar 4 Areas Within Mental Health Care that Give Executives Hope By medcitynews.com Published On :: Thu, 07 Nov 2024 03:39:20 +0000 Mental health experts are hopeful about the de-stigmatization of behavioral health, the promise of AI and other areas, they shared at a recent conference. The post 4 Areas Within Mental Health Care that Give Executives Hope appeared first on MedCity News. Full Article Daily Health Tech Payers SYN Top Story Anise Health Behavioral Health Tech Headspace LRVHealth Mental Health Optum
ar AI is Revolutionizing Healthcare, But Are We Ready for the Ethical Challenges? By medcitynews.com Published On :: Thu, 07 Nov 2024 15:09:00 +0000 Navigating the regulatory and ethical requirements of different medical data providers across many different countries, as well as safeguarding patient privacy, is a mammoth task that requires extra resources and expertise. The post AI is Revolutionizing Healthcare, But Are We Ready for the Ethical Challenges? appeared first on MedCity News. Full Article Artificial Intelligence Daily Health IT MedCity Influencers AI AI bias bias challenges discrimination ethics health IT
ar CVS Health Exec: Payers Need to Stop Making Behavioral Health Providers Jump Through Hoops In Order to Participate in Value-Based Care By medcitynews.com Published On :: Fri, 08 Nov 2024 02:02:59 +0000 Value-based care contracting is especially difficult for behavioral health providers, Taft Parsons III, chief psychiatric officer at CVS Health/Aetna, pointed out during a conference this week. The post CVS Health Exec: Payers Need to Stop Making Behavioral Health Providers Jump Through Hoops In Order to Participate in Value-Based Care appeared first on MedCity News. Full Article Daily Health Tech Payers Providers behavioral health Behavioral Health Tech CVS Health Aetna Mental Health oak street health value-based care
ar Through Early Discussions About Elder Care, Doctors Can Empower Seniors to Age in Place By medcitynews.com Published On :: Fri, 08 Nov 2024 15:08:00 +0000 The vast majority of older adults want to age at home. To support that goal, doctors should encourage them to consider their care options — long before they need assistance. The post Through Early Discussions About Elder Care, Doctors Can Empower Seniors to Age in Place appeared first on MedCity News. Full Article Community Daily MedCity Influencers Patient Engagement Physicians Social Determinants aging in place alzheimer's disease Caregivers elder care in-home care senior care
ar The Startup Economy is Turbulent. Here’s How Founders Can Recognize and Avoid Common Pitfalls By medcitynews.com Published On :: Fri, 08 Nov 2024 15:11:00 +0000 While startups in highly regulated industries like healthcare and finance are almost certain to face heightened scrutiny, there are controllable factors that can offset these challenges. The post The Startup Economy is Turbulent. Here’s How Founders Can Recognize and Avoid Common Pitfalls appeared first on MedCity News. Full Article Daily MedCity Influencers Startups economy Financing healthcare startups
ar FDA Takes Step Toward Removal of Ineffective Decongestants From the Market By medcitynews.com Published On :: Fri, 08 Nov 2024 18:38:33 +0000 The FDA has proposed removing oral phenylephrine from its guidelines for over-the-counter drugs due to inefficacy as a decongestant. Use of this ingredient in cold and allergy medicines grew after a federal law required that pseudoephedrine-containing products be kept behind pharmacy counters. The post FDA Takes Step Toward Removal of Ineffective Decongestants From the Market appeared first on MedCity News. Full Article BioPharma Daily Legal Pharma biopharma nl Clinical Trials FDA legal over-the-counter phenylephrine
ar There’s an Opportunity for More Providers to Partner with the 988 Lifeline, Execs Say By medcitynews.com Published On :: Fri, 08 Nov 2024 23:08:33 +0000 Two executives at behavioral health care companies discussed why it’s important for provider organizations to partner with the 988 Suicide & Crisis Lifeline during a panel at the Behavioral Health Tech conference. The post There’s an Opportunity for More Providers to Partner with the 988 Lifeline, Execs Say appeared first on MedCity News. Full Article Daily Health Tech Providers 988 Behavioral Health Tech Charlie Health Nema Health suicide hotlines
ar The Trust-Building Playbook: 5 Tips Every Digital Health Marketer Needs to Know By medcitynews.com Published On :: Sun, 10 Nov 2024 14:16:00 +0000 Building trust while simultaneously building products, selling, recruiting, and fundraising can feel impossible. But it’s required whether you have the time or not, and it doesn’t stop no matter how big you grow. The post The Trust-Building Playbook: 5 Tips Every Digital Health Marketer Needs to Know appeared first on MedCity News. Full Article Daily MedCity Influencers Startups HLTH 2024 marketing in healthcare public relations trust
ar Driving Genetic Testing Adoption and Improved Patient Care through Health Data Intelligence By medcitynews.com Published On :: Sun, 10 Nov 2024 15:21:00 +0000 By fostering collaboration and seamless data integration into healthcare systems, the industry is laying the groundwork for a future in which “personalized medicine” is so commonplace within clinical practice that we will just start calling it “medicine.” The post Driving Genetic Testing Adoption and Improved Patient Care through Health Data Intelligence appeared first on MedCity News. Full Article BioPharma Daily MedCity Influencers Pharma biopharma nl Cancer database DNA dna testing EHR ehr integration genetic testing personalized healthcare pharmaceuticals
ar How Can Healthcare Organizations Earn Trust with Marginalized Communities? By medcitynews.com Published On :: Sun, 10 Nov 2024 23:49:46 +0000 Access to care isn’t enough. Healthcare organizations need to build trust in order to reach underserved communities, experts said on a recent panel. The post How Can Healthcare Organizations Earn Trust with Marginalized Communities? appeared first on MedCity News. Full Article Consumer / Employer Daily Health Tech Payers SYN Top Story Alkeme Health Anise Health Behavioral Health Tech BlueCross BlueShield Minnesota Freespira humana health horizons trust
ar An Integrated Approach to Optimizing Specialty Pharmacy and Accelerating Performance By medcitynews.com Published On :: Mon, 11 Nov 2024 14:47:00 +0000 Top challenges impacting specialty pharmacy outcomes, and how health systems may achieve efficiencies and enhance performance for optimal outcomes. The post An Integrated Approach to Optimizing Specialty Pharmacy and Accelerating Performance appeared first on MedCity News. Full Article BioPharma Daily MedCity Influencers Pharmacy biopharma nl operational efficiency pharmaceuticals pharmacist prescription specialty pharmacy
ar Closing Staffing Gaps in Healthcare by Utilizing Diverse Pipelines of Contingent Talent By medcitynews.com Published On :: Mon, 11 Nov 2024 14:47:00 +0000 By adopting a contingent workforce model and investing in the right data tools to power better informed decision-making and talent strategy, healthcare organizations can begin to address staffing challenges and turn their talent goals into reality. The post Closing Staffing Gaps in Healthcare by Utilizing Diverse Pipelines of Contingent Talent appeared first on MedCity News. Full Article Consumer / Employer Daily Employee Benefits Health Services MedCity Influencers Patient Engagement Providers diversity in healthcare staffing workforce
ar How 4 Health Systems Are Partnering with Microsoft By medcitynews.com Published On :: Mon, 11 Nov 2024 22:08:58 +0000 Here’s how four different health systems are partnering with Microsoft to save time for clinicians. The post How 4 Health Systems Are Partnering with Microsoft appeared first on MedCity News. Full Article Artificial Intelligence Health Tech Hospitals Providers AI AI in healthcare artificial inteligence in healthcare HLTH HLTH 2024 HLTH Events Northwestern Medicine Providence stanford health care UW Health
ar Fort Health Secures $5.5M to Expand Access to Integrated Pediatric Mental Health Care By medcitynews.com Published On :: Tue, 12 Nov 2024 22:07:52 +0000 Fort Health’s $5.5 million in funding was led by Twelve Below and Vanterra and included participation from Redesign Health, Blue Venture Fund and True Wealth Ventures. The post Fort Health Secures $5.5M to Expand Access to Integrated Pediatric Mental Health Care appeared first on MedCity News. Full Article Daily Health Tech Payers SYN Top Story Fort Health funding pediatric mental health
ar Where Medicare Advantage Goes From Here By medcitynews.com Published On :: Wed, 13 Nov 2024 03:51:00 +0000 Now is the time for health plans to step up and embrace the tools and strategies that will not only meet regulatory demands, but also drive innovation in care delivery. The post Where Medicare Advantage Goes From Here appeared first on MedCity News. Full Article Daily MedCity Influencers Payers Policy Providers CMS Health Policy Medicare Advantage Star Ratings
ar Researchers Explore How the Human Body Senses Temperature By www.pewtrusts.org Published On :: Fri, 18 Dec 2020 09:53:54 -0500 As winter arrives and daylight hours decrease, it gets easier to hit the snooze button and stay in bed. It turns out that there’s a scientific reason behind this phenomenon that helps to explain why people struggle to adjust their internal clocks—also known as circadian rhythm or sleep-wake cycle—when the weather turns colder. Full Article
ar Researcher Looks to Plants in Search for New Antibiotics By www.pewtrusts.org Published On :: Mon, 11 Jan 2021 10:17:00 -0500 Dr. Cassandra Quave’s path to her work as a leader in antibiotic drug discovery research initiatives at Emory University in Atlanta started when she was a child and she and her family dealt with her own serious health issues that have had life-long repercussions. Full Article
ar Extended Medicaid Coverage Would Help Postpartum Patients With Treatment for Opioid Use Disorder By www.pewtrusts.org Published On :: Thu, 14 Jan 2021 13:02:00 -0500 Between 1999 and 2014, opioid use disorder (OUD) among pregnant women more than quadrupled, risking the health of the women—before and after giving birth—and their infants. As states grapple with COVID-19’s exacerbation of the opioid crisis, several are taking innovative steps to address the needs of high-risk groups, including low-income, postpartum patients with OUD. Full Article
ar Pew Applauds Michigan for Enacting Bipartisan Legislation to Safely Reduce Jail Populations By www.pewtrusts.org Published On :: Thu, 14 Jan 2021 15:00:29 -0500 The Pew Charitable Trusts today commended Michigan Governor Gretchen Whitmer (D), state Senate Majority Leader Mike Shirkey (R), and Lee Chatfield (R)—whose term as state House Speaker ended last month—for passing and signing a bipartisan package of bills aimed at protecting public safety while reducing the number of people in county jails. Full Article
ar Tools to Boost Beneficial Bacteria Can Help Poultry Farms Fight Salmonella By www.pewtrusts.org Published On :: Mon, 25 Jan 2021 09:13:00 -0500 Chicken products cause an estimated 1 in 7 of the nation’s human Salmonella illnesses each year, partly because the pathogen can easily contaminate the environments where birds are raised. To reduce the risk that contaminated meat will reach consumers, poultry companies need measures that control the bacterium on farms where chickens are bred and raised. Full Article
ar Primary Care Providers Can Help Steer People to Opioid Addiction Treatment By www.pewtrusts.org Published On :: Mon, 25 Jan 2021 09:13:00 -0500 The United States is grappling with two severe health crises: the COVID-19 pandemic and an opioid epidemic that appears to be worsening as more people deal with stress and isolation as they face increased barriers to medical care. Preliminary numbers for 2020 show that overdose deaths were outpacing the record-setting number of more than 71,000 fatalities in 2019. Full Article
ar Standard Technology Presents Opportunities for Medical Record Data Extraction By www.pewtrusts.org Published On :: Tue, 26 Jan 2021 10:38:00 -0500 Technology has revolutionized the way people live their lives. Individuals can use smartphones to access their bank account, shop from almost any store, and connect with friends and family around the globe. In fact, these personal devices have tethered communities together during the coronavirus pandemic, allowing many people to maintain much of their lives remotely. Full Article
ar Day Three Notes – JP Morgan Healthcare Conference, San Francisco By www.lifescienceslawblog.com Published On :: Fri, 15 Jan 2016 18:12:24 +0000 Yesterday’s conference sessions surfaced interesting questions and approaches regarding the post-acute sector, bundled payment, emergency medicine and anesthesia. Post-Acute Focus: With more and more focus on the need to rationalize and re-organize the post-acute sector, we have seen multiple industry leaders start to evolve their strategies. I blogged yesterday about AccentCare’s interesting strategy in the...… Continue Reading Full Article Healthcare
ar Extending the Patentable Life of 3D Printers: A Lesson From the Pharmaceutical Industry By www.lifescienceslawblog.com Published On :: Tue, 19 Jan 2016 17:34:48 +0000 Modern innovation typically occurs one step-improvement at a time. Some clients initially question whether their new application of an existing technology is patentable. Usually, the answer is ‘yes.’ Under U.S. law (and most other jurisdictions), an innovation to an existing technology is patentable so long as at least one claim limitation is novel and non-obvious....… Continue Reading Full Article Biotechnology FDA Intellectual Property Legislation
ar En Banc: Federal Circuit Provides Guidance on Application of On-Sale Bar to Contract Manufacturers By www.lifescienceslawblog.com Published On :: Fri, 15 Jul 2016 16:04:54 +0000 Pharmaceutical and biotech companies breathed a sigh of relief Monday when the Federal Circuit unanimously ruled in a precedential opinion that the mere sale of manufacturing services to create embodiments of a patented product is not a “commercial sale” of the invention that triggers the on-sale bar of 35 U.S.C. § 102(b) (pre-AIA).[1] The en banc opinion...… Continue Reading Full Article Intellectual Property Ben Venue Laboratories CMO MedCo On-Sale Bar
ar Looking Forward/Looking Backward – Day 1 Notes from the JPMorgan Healthcare Conference By www.lifescienceslawblog.com Published On :: Thu, 12 Jan 2017 19:40:59 +0000 A large amount of wind, much discussion about the U.S healthcare, and the public getting soaked again – if you were thinking about Washington, DC and the new Congress, you’re 3,000 miles away from the action. This is the week of the annual JP Morgan Healthcare conference in San Francisco, with many thousands of healthcare...… Continue Reading Full Article Medicaid Medicare ASC health plan Medicare Advantage population health management Telehealth
ar Food for Thought (and Health): Day 2 Notes from the JP Morgan Healthcare Conference By www.lifescienceslawblog.com Published On :: Thu, 12 Jan 2017 19:45:44 +0000 Addressing the Social Determinants of Health: Is the healthcare industry pushing a rock up a hill? We collectively are trying to provide healthcare with improved quality and reduced cost, but the structure of the nation’s healthcare system remains heavily siloed with the social determinants of health often falling wholly or partly outside the mandate and...… Continue Reading Full Article Medicaid Medicare ASC health plan Medicare Advantage population health management Telehealth
ar The Old and the New – Day 3 Notes from the JPMorgan Healthcare Conference By www.lifescienceslawblog.com Published On :: Thu, 12 Jan 2017 19:47:02 +0000 Day 3 of the JPMorgan healthcare conference was one of striking contrasts between the old and the new. (And, by the way, the rain finally stopped for a day, but it will be back tomorrow to finish off the last day of the conference). The Old: Sitting in the Community Health Systems (CHS) presentation and...… Continue Reading Full Article Medicaid Medicare ASC health plan Medicare Advantage population health management Telehealth
ar Notes on Day 4 of the JPMorgan Healthcare Conference By www.lifescienceslawblog.com Published On :: Fri, 13 Jan 2017 19:06:20 +0000 Some interesting presentations on the last day of the JPMorgan Healthcare Conference that concentrated on common themes – the increasing importance of ancillary business line to bolster core business revenue and of filling in holes to achieve scale and full-service offerings. Genesis Healthcare – The largest U.S. skilled nursing facility (SNF) provider, which also is...… Continue Reading Full Article Medicaid Medicare ASC health plan Medicare Advantage population health management Telehealth
ar WannaCry Ransomware Alert By www.lifescienceslawblog.com Published On :: Mon, 22 May 2017 18:18:24 +0000 This is not a drill. Companies and law enforcement agencies around the world have been left scrambling after the world’s most prolific ransomware attack hit over 500,000 computers in 150 countries over a span of only 4 days. The ransomware – called WannaCry, WCry, WannaCrypt, or WannaDecryptor – infects vulnerable computers and encrypts all of...… Continue Reading Full Article Other cybersecurity ransomware
ar Impact of Trump and Harris on Prescription Drug Pricing By worldofdtcmarketing.com Published On :: Thu, 31 Oct 2024 12:16:02 +0000 The upcoming U.S. presidential election is stirring discussions around healthcare, especially the cost of prescription drugs and the […] The post Impact of Trump and Harris on Prescription Drug Pricing appeared first on World of DTC Marketing. Full Article As I See It Business of the drug industry Cost of healthcare in the U.S. in the news Election & Pharma
ar Pain Management in Crisis: Why Hospitals Are Limiting Pain Medications and What This Means for Patients By worldofdtcmarketing.com Published On :: Fri, 01 Nov 2024 12:45:01 +0000 Hospitals across the U.S. have significantly restricted the use of pain medications containing narcotics. This shift comes amid […] The post Pain Management in Crisis: Why Hospitals Are Limiting Pain Medications and What This Means for Patients appeared first on World of DTC Marketing. Full Article Bad practices Focus on patients Pain Medication
ar Jardiance DTC Ads: Consumer Reactions on Social Media By worldofdtcmarketing.com Published On :: Sat, 02 Nov 2024 14:03:45 +0000 Jardiance is a popular drug used to treat type 2 diabetes and help reduce cardiovascular risk. DTC campaigns […] The post Jardiance DTC Ads: Consumer Reactions on Social Media appeared first on World of DTC Marketing. Full Article Focus on patients DTC DTC Ads Jardiance
ar CMS Cuts Medicare Physician Payments: What It Means By worldofdtcmarketing.com Published On :: Mon, 04 Nov 2024 10:02:18 +0000 The Centers for Medicare and Medicaid Services (CMS) recently announced a 2.9% cut to Medicare physician payments for […] The post CMS Cuts Medicare Physician Payments: What It Means appeared first on World of DTC Marketing. Full Article Cost of healthcare in the U.S. in the news CMS Cuts
ar The Dark Side of Medicare Advantage Incentives By worldofdtcmarketing.com Published On :: Mon, 11 Nov 2024 10:57:43 +0000 We’ve all seen Medicare Advantage (MA) plans become a significant player in the healthcare industry. Yet, with the […] The post The Dark Side of Medicare Advantage Incentives appeared first on World of DTC Marketing. Full Article As I See It Cost of healthcare in the U.S. in the news Medicare Advantage
ar Create Halloween images and learn SAS basics By blogs.sas.com Published On :: 2015-10-29T12:00:00Z Learn how to take simple x/y coordinates, and create map polygons shaped like holiday images, that can be plotted using SAS/Graph's PROC GMAP. Full Article Samples Blog post