Archives: 10/2011

logo e22s Medgadget en EspañolWe’d like to remind our Spanish speaking audience that all of our articles are professionally translated and available in Spanish on our sister site Medgadget.es  There you can also subscribe to the Medgadget.es Twitter, RSS, Facebook, and Mobile feeds and keep up with the latest medical technology in your mother tongue.

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At TEDMED’s innovation showcase Vanderbilt University presented a few high tech medical technologies they’re working on to improve the dexterity and precision of performing surgical tasks. Here is Pietro Valdastri from the STORM Lab (Science and Technology Of Robotics in Medicine) showing off a magnetically guided colonoscope his team developed:

gkrsfzoo Medtronics Assurant Cobalt Chromium Stent for PVD Gets Cleared in U.S.The FDA issued approval for Medtronic‘s Assurant cobalt-chromium balloon-expandable stent for treatment of narrowed iliac arteries in patients with peripheral vascular disease.

The new device’s FDA approval was supported by the nine-month results from the ACTIVE (Use of the Assurant Cobalt Iliac Stent System in the Treatment of Iliac Vessel Disease) trial, which examined the outcomes of 123 patients at 17 U.S. sites.

The Assurant Cobalt stent demonstrated exceptional technical, procedural and clinical success in the trial and had low rates of major adverse events, target lesion revascularization (TLR) and target vessel revascularization (TVR) —- all at 0.8 percent. In addition, the device also achieved a 99.2 percent primary patency rate, meaning only one of the 123 study patients required a reintervention through nine months of follow-up.

The Assurant Cobalt stent leverages the strength of cobalt chromium and a unique modular design to create a device with ultrathin, round, edgeless struts, allowing for smooth delivery to iliac artery lesions and excellent conformability to the vessel wall without sacrificing radial strength. The combination of these design features enables the stent to be the only balloon-expandable device to utilize a 6F sheath for the entire size matrix —- from the smallest (6mm x 20mm) to the largest (10mm x 60mm) size —- for the treatment of iliac arteries.

Press release: Medtronic Receives First FDA Approval of Cobalt Chromium Balloon-Expandable Stent to Treat Narrowed Iliac Arteries

safb58cj Siri iPhone Voice Recognition System to Help in Health CareOver at GigaOM health policy analyst John S. Wilson speculates how Siri, the voice command recognition system introduced for the iPhone 4S, will impact health care.

He cites a few examples to illustrate his ideas. Emergency calls to 911 may be made faster with information automatically passed to the operator. Also, scheduling things like drug regimen reminders is much easier by simply saying into Siri “take Obecalp once every other day.”

Link: How Siri could revolutionize the 911 system

3eelwvq8 Quantum Sensors, Magnetic Nanoparticles Attractive Possibilities for Breast Cancer DiagnosticsAs we near the end of the 2011 Breast Cancer Awareness Month, it is fitting to continue our coverage of new developments related to breast cancer diagnostics and treatments. We recently reported on GE Healthcare‘s newly FDA-approved SenoBright system that promises to greatly improve imaging of breast tissue over traditional mammograms. Though mammographies have tremendously enhanced patient care – in some cases detecting pre-cancerous lesions three years prior to any problems arising – they are not perfect.  Mammograms currently are incapable of distinguishing between benign and malignant lesions and are estimated to miss detecting 10-25 percent of breast cancers.

In the latest issue of Breast Cancer Research, a collaborative team of oncologists and nanotechnology researchers report using targeted magnetic nanoparticles and ultra-sensitive magnetic field sensors to accurately detect relatively small numbers of breast cancer cells. By conjugating iron-oxide nanoparticles (diameter < 30 nm) with antibodies for the aggressive breast cancer cell surface receptor, Her2, the team was able to attach hundreds of magnetic nanoparticles to each individual cancer cell. Then, using superconducting quantum interference device (SQUID) sensors, they could differentially distinguish cancerous cells from normal tissue. The authors refer to this as magnetic relaxometry, which they describe as:

… fast and theoretically is more specific than magnetic resonance imaging detection since only particles bound to their targets are detected, eliminating the problems associated with signals from unbound particles. The magnetic moments observed by magnetic relaxometry are also linear with the number of nanoparticles bound to the tumor and may be used to determine the number of cancer cells in the tumor. In magnetic relaxometry, magnetic nanoparticles that have been conjugated to antibodies or other agents are incubated with live cells. After a brief period, the nanoparticles attach to the targeted cells in large numbers, typically on the order of 100,000 nanoparticles per cell. A magnetizing pulse of less than 1 second is applied with a set of Helmholtz coils to achieve a uniform magnetizing field over the sample. A field of 40 gauss is adequate to appreciably polarize these nanoparticles, which are typically 25 nm in diameter, resulting in an induced collective magnetic moment. After the magnetizing field is removed, the magnetic moment decays through the Néel mechanism with a time constant on the order of 1 second. This decaying field is measured by an array of second-order gradiometer SQUID sensors. Our long-term goal is to develop magnetic nanoparticle-based magnetic imaging to detect in vivo malignancies with high sensitivity and specificity.

Clearly much work remains to be done, though we are excited to see continued interdisciplinary use of magnets in medicine, ranging from diagnostic to therapeutic (e.g. MRI and TMS).

Full article: Detection of breast cancer cells using targeted magnetic nanoparticles and ultra-sensitive magnetic field sensors

Flashback: Researchers examine bio-magnetic sensors

Image credit:: Wellcome Images: Breast cancer cells

xa0mgq5m Gel Could Help the Survival of Bioengineered OrgansA new gel could improve the survival of bioengineered organs and other tissues by promoting vascularization. Researchers at the Wake Forest Institute for Regenerative Medicine have reported positive results in early laboratory tests.

The collagen-based gel contains fibrin, a fibrous protein involved in blood clotting. In addition, vascular endothelial growth factor (VEGF) also can be added to the gel. VEGF is a signal protein that helps to create new blood vessels. It also can be used to help regenerated tissues grow new blood vessels, explains Tamer Aboushwareb, MD, PhD, assistant professor of urology.

Check out the press release:

The Wake Forest researchers formulated the gel in such a way that it can be injected into the body and control the release of VEGF for up to 12 days. Their goal is to develop a gel that can release VEGF over a longer period, Dr. Aboushwareb said.

The investigators at Wake Forest Institute for Regenerative Medicine have been collaborating on a host of projects using the body’s cells to grow new tissues for damaged organs. One of the co-investigators of the study presented at the American College of Surgeons meeting, Anthony Atala, MD, FACS, has been the renown lead investigator of a team that has grown bladder cells.

However, Dr. Aboushwareb said that among the ongoing problems with placing bioengineered tissues in the body is getting the tissue to grow new blood vessels. “If we can put these gels with these factors on, for example, the bladder, we would then be able to attract vascular tissues to the bladder very early on and greatly improve the survival of this tissue,” Dr. Aboushwareb said. “This gel is an enabling technology that will allow us to enhance the tissues that we make.”

This gel promises to move regenerative medicine to the next level, according to Dr. Aboushwareb. “The field is in prime time right now to be able to place live tissues that need vascularization into patients,” he said. “With this gel and other technologies, we’re giving the entire field a push toward a better construct for tissue replacement.”

The next step is for the investigators to develop a gel with an even slower release of VEGF. “If we can get it to a release time of 28 days or even 58 days, then we’re giving the implanted tissue a much greater chance of allowing the vascular tissue to grow into it,” Dr. Aboushwareb explained. Further down the road the gel may be incorporated into the engineered tissues that doctors will implant.

The researches have begun using the compound in a limited animal trial. They hope to eventually move to a larger animal trial and to human trials thereafter.

Press release: Cell-Based Gel May Improve Survival of Bioengineered

Image: Types of VEGF and receptors (from Wikipedia).

gb44445q3g Eye Surgery Robot Developed to Operate With Higher Precision
A new smart eye-surgery robot has been developed by researcher Thijs Meenink at the Eindhoven University of Technology (TU/e), the Netherlands. The Eye-RHAS (Robot For Haptically Assisted Surgery) will make it possible to operate on the retina and the vitreous humour with more ease and precision.

The robot consists of a master and a slave. The ophthalmologist controls and operates from the master using two joysticks. The slave, which also consists of two joysticks, can copy the movements and thus carry out the operation. It also features a system in which the instruments can be changed very quickly, which can reduce the operating time significantly. In eye operations it is required to operate with high precision. To achieve a higher precision, the system can filter out hand tremors of surgeons and also by scaling down movements of the surgeon’s fingers. This means that a big movement with the master joystick will be translated into a smaller movement of the slave joystick that holds the instrument. The system also provides haptic feedback, meaning the surgeons will be able to feel the effects of their actions.

The new system can lead to the next step in the evolution of microsurgery in ophthalmology and might lead to the development of new, more precise eye procedures. The system is ready for use, but Meenink intends to optimize it  first. It is expected that the first surgery on humans will be within five years. After he defends his thesis on his work on the robot, he intends to commercially investigate the opportunities of this system.

Here’s an excellent video from TU/e explaining the workings of the robotic system:

Press release: Vitreo-retinal eye surgery robot : sustainable precision…

tedmed2011 TEDMED Day 4   Nano Shapes and Confronting DeathTEDMED 2011 finished up with a short morning session for attendees to learn just a little bit more before they checked out of the Del and headed out of San Diego. On the whole, the TEDMED crew once again pulled off a spectacular conference. The quality of the talks (especially Day 3) and social events was exceptional and we’d like to give a big thanks to the TEDMED team for working so hard to put on such a meaningful event.

Jay Walker himself started off the morning by showing us some rare artifacts from his amazing library of human imagination. Most interesting was a punch card from the Jacquard loom, the first machine to use an automated and replicable input of instructions to reliably repeat an action. This innovation from the early 1800s inspired Charles Babbage years later as he built his difference engine, largely considered to be the foundation of modern computing technology. Along with the punch card from the loom itself, Jay had a small book of prayers where each page was woven out of silk using the Jacquard loom itself. This served as an incredible marketing piece for the loom and instantly changed people’s notions at the time of what a loom could do.

g269oiked56 TEDMED Day 4   Nano Shapes and Confronting DeathAfter the intro, psychiatrist John Wynn came on stage to talk largely about his work and thoughts on how people interpret their mortality. He told a story about a cancer patient who, after a long relationship with Dr. Wynn, was finally found to be incurable. After hearing this poor prognosis, the patient asked Dr. Wynn why he should spend any time with her at all given she was going to die soon and he could be helping other people. This woke him up to the realization that cancer patients who do poorly are often ashamed, in large part because those that do well are often considered heroes. John advocates a more accepting and nuanced approach to helping patients and people in general confront and discuss mortality.

Up next was engineer Joseph DeSimone who in an amazing talk told us about how he is bringing the world of semiconductors to medicine. He and his multidisciplinary team have engineered a process to carve out nano-patterns on silicon wafers and use a substance they call “liquid teflon” to create a thin film that serves as a template for particles they’d like to create. Think of what he is doing as building nano-scale ice cube trays that allow scientists to reliably craft nano-particles of any shape. But why does this matter? Let’s say you wanted to create the most optimal inhalable medication for asthma. Current powdered compounds have an imprecise and irregular shape, which affects dosage consistency, lung penetration, etc. With Joseph’s technology they can model the aerodynamics of their designed particles.

yqh4ty87 TEDMED Day 4   Nano Shapes and Confronting DeathHis lab is also working on building particles that stick to specific cell types as well as manipulating the pH sensitivity of a pharmaceutical mixture so that when a nano-particle gets into a cell does it dissolves. If successful, this would allow for Trojan horse sort of treatment, where cancerous cells might pick up the drug in a nano-particle, bring it into the cell, and only then (in the slightly more acidic environment) would the particles dissolve to kill the cell.

Lastly, Joseph and team are attempting to build better vaccines. Most modern vaccines use sub-units of particular pathogens in order to train the body to launch an immune response. If you were building a vaccine for say, measles, you might break off and duplicate a few proteins from the measles virus that the body would learn to recognize and quickly mount an assault against if the real threat occurred. This is effective, but the body has no conception of the overall shape of the pathogen, something Joseph believes would help in developing stronger immunity. By creating little nano ice cube trays in the size and shape of actual pathogens, he is able to create particles that closely resemble the bugs themselves, and then coat or embed them with sub-units from traditional vaccines. In one of his experiments, Joseph saw a twelve-fold increase in immune response by simply shaping the inoculation like the actual pathogen.

gq54bq5555 TEDMED Day 4   Nano Shapes and Confronting DeathAfter Joseph, Noble Prize winning Peter Agre took the stage to talk about his recent travels using science as a point of connection and diplomacy between countries. His status as a scientist has enabled him to make several trips to North Korea, for instance, in the hope of forming personal connections outside of politics that might down the road lead to favorable political change, less repression, etc. He showed us remarkable pictures from North Korea’s newest science academy, in which students are required to wear suits and march to class, but over time and when pressed, reveal themselves to be normal, curious young-adults fascinated about the scientific world around them.

As a closing performance to TEDMED 2011, beat poets Sekou Andrews and Steve Connell got on stage next and gave a stunning performance. If you haven’t seen these two in action, it’s worth having a watch here. They performed a piece that served as commentary on the TEDMED move to Washington DC in April, that portrayed attendees as revolutionaries of sorts, ready to storm the capital and demand change in our health care system that will allow us to live healthier lives.

Sekou and Steve got a standing ovation and Jay Walker came back on stage to provide closing remarks. We’ve already given the key details of the TEDMED move to DC in day three’s coverage, but suffice it to say that the conference has a new agenda – learn from and put pressure on government institutions to help promote the health of the nation through smart policy. Though Jay made it clear that TEDMED itself will remain a nonpartisan organization, there is an undercurrent of activism that he anticipates will come from bringing the new TEDMED “delegates” into DC to talk about and display cutting edge thought and technology in medicine. This is clearly an ambitious move, a step to turn TEDMED into less of a conference and more of a movement. We’re certainly looking forward to next April.

Thanks again to the TEDMED team for your hard work!

tedmed2011 TEDMED Day 3   Mushroom Loving Insects and FDA BluesWe’re here at TEDMED 2011 and have just finished up day three of the conference. It was a spectacular. Yesterday (day 2) was solid and today (day 3) was stellar. The talks, ranging from mushrooms to the FDA, allowed TEDMED to really flex its muscles as a world class affair.

Today’s proceedings started with another song-based wrap-up (of yesterday’s talks) by Jonathan Mann and led into a talk by renowned photographer Rick Smolan. His photography book The Power to Heal was given as a part of the TEDMED schwag bag and his talk told the story of his career including the conception of the day in the life series which grew to be one of the most popular photography projects in history. His next goal is to produce a work that takes the digital pulse of the nation through “Big Data.” He’s on the hunt for collaborators so if you’re interested in how data reflects the state of human beings, email us and we can pass your thoughts his way.

paul stamets TEDMED Day 3   Mushroom Loving Insects and FDA BluesAfter Rick, mushroom biologist Paul Stamets gave a stunning talk on how mushrooms (non-psychedelic) have the potential to be medically therapeutic. Given the unique place in the biological ecosystem that mushrooms live, they’ve evolved all sorts of properties that they use to interact with the world around them. On stage with Paul was an Agarikon mushroom the size of a pumpkin, one of the most rare mushrooms out there but also known to have potent antimicrobial properties. The mushroom lives for hundreds of years in very harsh conditions and it is thought that these conditions caused it to evolve these traits. Paul also spoke of a mushroom called the Turkey Tail mushroom that seems to raise base immunity function. He and his team got an NIH grant to study this mushroom in context of a compliment breast cancer therapy and found that it had extremely positive effects on the immune system of patients.

Most amazing however, was a mushroom called Cordyceps. Paul and his team were experimenting with the Cordyceps and they noticed that a specific extract from the mushroom had strange and rather remarkable insect attractant properties. Likely due to an evolutionary quirk, insects, including flies, mosquitos, termites, and more were remarkably attracted to the extract, to the point where spreading some would almost instantly draw insects in the thousands. Mosquitos, for instance, were nearly as attracted to this substance as a warm human hand. Besides building the most spectacular bug trap in existence, Paul plans to use his findings to attack zoonotic diseases.

forgacs TEDMED Day 3   Mushroom Loving Insects and FDA BluesAfter Paul, Gabor Forgacs from Organovo gave an update on his tissue printing technology. His company is essentially printing rows of cells just like an inkjet prints lines of ink, but by layering these rows on top of each other, they’re able to print fully three dimensional tissues. Right now they are using printed tissues as clinical trial models in order to enable pharmaceutical companies to make a better guess if their compounds will successfully pass human trials after being proven in animals. But they are also working on more directly therapeutic uses for their technology.

Currently they’re commercializing vascular tissue for scientific research but will likely soon do the same for actual implantation to replace veins or arteries. Longer term they’d like to print “organs” that may or may not look anything like our natural organs but would be functionally the same. Imagine a liver, for example, that looked like a rectangular block of tissue but had the same biochemical function as an actual liver.

medan TEDMED Day 3   Mushroom Loving Insects and FDA BluesYoav Medan, Vice President and Chief Systems Architect at InSightec, gave the next talk about the advances he and his colleagues have made in non-invasive ultrasound surgery. In what was previously a dream but now made into reality, Yoav has figured out a way to pair fMRI and focused ultrasound beams to heat up and destroy focused areas of tissue inside the body without a single incision. He showed us a little piece of gel that had a small hole cut out of the middle through focused ultrasound. It is an amazing thing to be able to instantly ablate a precise region of human tissue without ever making a cut and he’s first targeting brain surgery. By locking down the patients head in the MRI machine, they’re able to make precise lesions in the brain that would have previously required extensive and dangerous surgery.

tsiaras TEDMED Day 3   Mushroom Loving Insects and FDA BluesUp next was Alexander Tsiaras from the Visual MD. His company is bringing visuals to the complicated world of medicine to help people better understand what is going on inside their bodies through videos, infographics, illustrations and images. We’ve previously covered Alexander’s company and at this TEDMED, he gave an update on their latest product plans. One of their latest goals is to help people better interpret their lab results by showing in rich detail exactly what each test means on the level of the body’s physiology and how the results relate to overall health. They’ve built partnerships with diagnostic companies and are hoping to grow the Visual MD into a go-to portal for patients to interpret what’s happening inside their bodies in the utmost of visual detail.

regina benjamin TEDMED Day 3   Mushroom Loving Insects and FDA Blues
After a lunch on the Hotel Del Coronado lawn, the18th surgeon general of the US, Regina Benjamin gave a wonderful talk about the changes in the health agenda at the government level. Her and her team, in concert with HHS are pushing a National Prevention Strategy, refocusing their efforts on reducing the incidence of disease rather than treating it once it has already arrived. After listening to Regina, we really got the feeling that the government and health care system as a whole is not just talking about prevention but actually taking a serious stance in trying to get it done. Kudos to her and her team.

Along the same lines, David Kirchoff, the CEO of Weight Watchers, spoke about how the last two years have really signified the medical renaissance for his firm as the world starts to pay more attention to obesity as an epidemic that has the potential to bankrupt our health care system. He showed a lot of petrifying charts about how obesity has increased throughout the nation at a dramatic rate. Even Colorado, having a stereotype of being the healthiest stage in the nation would have been the most overweight in 1990. Obesity related illness such as diabetes are already at epidemic levels and are threatening to get much worse. He thinks that a confluence of behavioral factors helps Weight Watchers to be successful and feels that his firm along with others in the face are poised to make even more of a difference in the years ahead. It is notable that he opened his talk with the question “Is obesity a solvable problem?”.

buetner TEDMED Day 3   Mushroom Loving Insects and FDA BluesDan Buettner, world record holding endurance cyclist and documentarian, was up next to talk again about his experience, funded by National Geographic, of seeking communities across the world that were previously unhealthy but became healthy. Dan noted that our current approach of dieting to losing weight and combating lifestyle disease is severely flawed. It doesn’t matter what the diet is, if you take 100 people and put them on it, almost none will still be following it after 7-8 months. His idea after his journey with National Geographic was to build and deploy community transformation programs that don’t simply ask people to change their habits but rather sculpt the environment around them to enable it. Sponsored by AARP, he and his team ran a pilot community transformation program in Alber Lea, Minnesota where they expanded parks and paths, worked with local restaurants to change their food options, and engaged with the social networks of the community itself. His results were staggering. They were able to get 60% of the city’s local restaurants involved, 100% of its schools, and 27% of its citizens. They also saw a 49% drop in city worker’s health care costs. He’s looking to scale this model more broadly, possibly to the whole state of Iowa next year.

After Dan, Mehmood Khan, the Chief Scientific Officer of Pepsi spoke about the necessity of processing food and how new technologies for processing can help feed the world more healthily. Mehmood argues that there are simply too many people in the world to feed without processing food so rather than apply a label of negativity to the word processed, we should re-think how it is done and innovate ways to make food last longer, contain more nutrients, and get to people who need it. He said that we’re wasting an incredible amount of food in the world because of simple spoiling, and he and his team at Pepsi are not only re-thinking their entire food strategy to focus on healthier options but are innovating new methods of getting better food to more people.

gabor meat TEDMED Day 3   Mushroom Loving Insects and FDA BluesIn a hilarious and aptly timed demonstration, Gabor Forgacs from Organovo got on stage next to talk about printing meat with his tissue printers. He had talked previously about using them to regenerate tissue for human health, but it is equally possible to take muscle cells and print them for human consumption. He brought up a little frying pan, opened up a vial, and pulled out a strip of “printed” pork that he made using his technology, heated it, and ate it right in front of us. The whole spectacle was hilarious and the audience was loving every moment. He’s not sure what to call his new type of meat but is leaning toward “lab meat” or “in vitro meat.”

Lunch was up next and thankfully they didn’t have Gabor plan the menu.

dean kamen TEDMED Day 3   Mushroom Loving Insects and FDA Blues
After lunch we had an update from author AJ Jacobs on his year of living as healthily as possible followed by a great talk by Dean Kamen. Instead of focusing on updates from his initiatives, he gave an illuminating rant on the FDA. He had trouble getting his non-invasive, DARPA-funded, prosthetic robotic arm through as a class one device. In a comical chain of events, immediately after receiving this news he was asked to be the keynote speaker at a conference in DC where the head of the FDA would be on stage with him. He decided to use this opportunity to present his 510(k) class II application for his prosthetic arm. In it, he had to identify a predicate device that has already been approved which would be reasonably considered to be equally or more safe than his arm. Dean chose a chainsaw. After this rant Dean reminded the audience that we as a society chose to have a system that doesn’t tolerate risk in medicine and though it is all too easy to simply point fingers at the FDA, we’ve got to actively move past this and chose a new system through our votes and voices.

tomaz TEDMED Day 3   Mushroom Loving Insects and FDA BluesAfter Dean, biomedical engineer Chris Toumazou gave a fascinating talk on (among other topics) how as electronics increasingly interface with biology, we should shift to from digital circuits to analog. The digital world of 1s and 0s simply doesn’t match up to the way the body processes data, interprets electrical inputs and crafts outputs. Chris thinks that this sort of shift is already here, and it will continue to produce remarkable advances in implants and devices. For instance, he and his team have used this sort of electrical engineering to build incredibly low power and inexpensive cardiac monitoring patches as well as a new and faster DNA chip built for detecting specific mutations.

hariri TEDMED Day 3   Mushroom Loving Insects and FDA BluesUp next was Robert Hariri, CEO of Cellular Therapeutics, who just like at FutureMed, blew us away with the work he and his team are doing on stem cells. His company is using placenta-derived stem cells as a platform for therapy and is already co-axing these cells into doing remarkable things. An early application of his work is in Crohn’s disease, a poorly understood immunological inflammatory GI condition. He showed us before and after endoscopies of Crohn’s patients and the results were startling – almost a compete remission of the disease. His company is also de-cellularizing organs and once again using their placental-derived stem cell technologies to repopulate the left over non-cellular structures (think scaffolding) with new tissue. Lastly, Celgene is using the structural framework of placentas to create sheet collagen that can be used in wound repair. They’re creating patches that are currently being tested in burns and the results are stunning. The patches allow the patient’s own skin cells to populate the collagen scaffolding which dramatically improves healing and reduces pain.

After learning about stem cell use from Robert, we transitioned into a talk by Charles Limb, musician and cochlear implantation surgeon who noted that even though we’ve as a society have been remarkably successful in improving hearing disorders through implant technology followed by speech therapy, patients with cochlear implants still can’t interpret music as beautiful. Charles is an avid musician himself and wonders if we could help train children with implants for music recognition in the same way we do for speech… at least until better technology arrives.

ball vocal cords TEDMED Day 3   Mushroom Loving Insects and FDA BluesKeeping with the music theme, beat boxer and MIT graduate Nate Ball took the stage and not only demonstrated his incredible talent first hand but endured a live laryngoscopy, on stage, to demonstrate how his throat anatomy created such interesting sounds. His robot voice, for instance, which he thought was simply his vocal cords turned out to be created by his arytenoid cartilages vibrating against each other. He is also able to make his lips and tongue vibrate musically as well and when he puts all of these talents together, has a veritable drum and synthesizer kit all above the neck.

Chuck Pell was up next to talk about his biomechanist approach to creating medical inventions. His latest passion is to modernize surgical tools through tissue science, starting with the retractor, a technology he says has not changed for hundreds of years. His company Physcient is building an electric retractor that for their first procedure, a thoracotomy, might have great patient benefit. Thoracotomies are notoriously painful procedures, largely due to the force applied to opening the surgical space, ripe with nerves. He has created a simple electric device that distributes the force properly over time and space. In his animal models, this has decreased post surgical pain dramatically.

After Chuck, Jay Walker closed out the evening with a preview of how TEDMED is changing under his ownership. In summary, Jay his big ambitions for the conference to make a large impact in the world of medicine and he feels the best way to make change is to bring the conference to DC. The next TEDMED will be this coming April at the JFK Center for the Performing Arts in Washington, DC. His vision is to sit in our government’s back door and use this proximity to influence the course of medicine and improve the health of the nation and the world. The conference will be bigger, will be streamed live and for free throughout DC, and will be structured on a different attendance model, in which core attendees will be on the floor of the JFK center during the talks and will represent various disciplines as delegates. The other attendees will be in the balconies. From what it seems at this stage, if elected delegates cannot afford the conference, they will be given a scholarship and attendees in the balconies will be able to come for free.

It is very clear that the feel and goal of TEDMED is changing and this was a hotly discussed decision at the conference. But after hearing Jay’s call to bring the audience’s collective voice to Washington to maximize the impact on health care, it felt like the audience was absolutely on board and willing to give it a try. The next conference this April will be a fascinating change.

Wow, what a fantastic day of talks from some of the most interesting people in medicine! We’ll see you tomorrow.