implantable
Latest
Researchers want to power pacemakers with cotton-based biofuel cell
Researchers at the Georgia Tech and Korea University believe they have found a way to power implantable medical devices like pacemakers with a new fuel cell made from cotton fiber. The glucose-powered biofuel cell could provide twice as much power as conventional options.
Researchers power tiny medical implant from over 100 feet away
Researchers at MIT are working on tiny implantable devices that can communicate and be powered wirelessly. In the future, they could be used to deliver drugs, treat disease or monitor conditions from inside a human body. Because the devices don't require a battery, they can be pretty small and the prototype the research team has been working with is about the size of a grain of rice. But the researchers think they can get the devices to be even smaller than that.
Bionic eye closer to human trials with invention of implantable microchip
We've had our eye -- so to speak -- on Bionic Vision Australia (BVA) for sometime, and with the invention of a new implantable microchip it's coming ever closer to getting the bionic eye working on real-deal humans. The tiny chip measures five square millimeters and packs 98 electrodes that stimulate retinal cells to restore vision. Preliminary tests are already underway, and clinicians are in the process of screening human guinea pigs for sampling the implants -- the first full system is still on track for a 2013 debut. In the interest of future success: here's mud in your eye, BVA! Full PR after the break.
BrainGate hits 1,000 day mind-control milestone, nearly three years of pointing and clicking
Aspiring Svengalis rejoice! For BrainGate has reached a significant landmark in computational thought-control -- the 4 x 4-mm implantable chip has given a woman with tetraplegia the ability to point and click with her brain for 1,000 days. An article recently published in the Journal of Neural Engineering said the woman, known simply as S3, performed two easy tasks every 24 hours, using her mind to manipulate a cursor with 90 percent accuracy. Each day she was monitored, S3 would post up in front of a computer and continuously command the thing with her thoughts for 10 minutes. Functionality reportedly deteriorated over time, but the paper points to the chip's durability, not sensor-brain incompatibility, as the culprit. Research is currently underway to incorporate BrainGate into advanced prosthetics that could get tetraplegics like S3 up and moving again. Now, how's that for the power of positive thinking?
Researchers debut one-cubic-millimeter computer, want to stick it in your eye
This as-of-yet-unnamed mini computer was fashioned as an implantable eye pressure monitor for glaucoma patients, but its creators envision a future where we're all crawling with the little buggers. Taking up just over one cubic millimeter of space, the thing stuffs a pressure sensor, memory, thin-film battery, solar cell, wireless radio, and low-power microprocessor all into one very small translucent container. The processor behind this little guy uses an "extreme" sleep mode to keep it napping at 15-minute intervals and sucking up 5.3 nanowatts while awake, and its battery runs off 10 hours of indoor light or one and a half hours of sun beams. Using the sensor to measure eye pressure and the radio to communicate with an external reader, the system will continuously track the progress of glaucoma, without those pesky contacts. Of course, the mad scientists behind it look forward to a day when the tiny device will do much more, with each of us toting hundreds of the computer implants all over our bodies -- looks like a bright future for cyborgdom.
Researchers develop 'liquid pistons' for cameras, medical use
It may still be years away from any sort of practical use, but a team of researchers at the Rensselaer Polytechnic Institute have developed some so-called "liquid pistons" that they say could shake up everything from cameras to medical devices. Those pistons consist of some droplets of "nanoparticle-infused ferrofluids," which are able to oscillate and precisely displace a surrounding liquid. In the case of a camera, that could be used for a liquid lens of sorts (as seen at right), and the researchers say the same technology may one day even be used for implantable eye lenses. The possibilites don't end with optical uses, though -- the researchers say that the precise ability to pump small volumes of liquid could also be used for implantable drug-delivery systems that would be able to deliver tiny doses at regular intervals. Of course, there's no indication as to when any of that might happen -- in the meantime, you can occupy yourself with the brief but oddly hypnotic video after the break.
Chip implanted in spinal cord could help sufferers of chronic pain (video)
Researchers at Sydney's National ICT Australia (NICTA) have spent the past two years developing an incredibly futuristic invention which could bring relief to those who suffer from chronic pain. What it amounts to is a series of 'smart' chips inserted into biocompatible devices and strung together. These are then sewn into a very small (1.22mm wide) lead made of a polymer yarn and wires, which are then inserted into the spine. The device is them connected to a battery and computer which can measure and gather information about the pain-carrying nerves signalling the brain. The device can also respond by sending 10 volt electrical pulses to block the signals' path to the brain, tricking the brain into thinking there is no pain. There are devices such as this one already in existence, but they are much larger than this new device, and its smaller size increases accuracy as it can be implanted closer to the spine than previous models. The NICTA's device is set to go into human trials next year. Video after the break.
Medtronic debuts tiny lead-less pacemaker at TEDMED 2010
There are two pacemakers in the picture above. There's the typical clunky, stone shaped device with wires on the right -- and on the left, a device dwarfed even by a one-cent coin. This is the Medtronic wireless pacemaker, just revealed at TEDMED 2010, which can be implanted directly into your heart via catheter and permanently latch itself into flesh with tiny claws. Then, doctors can wirelessly monitor and even control the device from a nearby smartphone. Medtronic's working to make it even smaller still, and we're hoping to get more information soon. Welcome to the future, folks. %Gallery-106218%
Flexible, implantable LEDs look set to start a new body modification craze
LED lights are cool, you're cool, why not combine the two, right? We doubt that's quite the reasoning that led to this international research project, but it's certainly an appealing way to look at it. Our old buddy John Rogers from the University of Illinois at Urbana-Champaign has headed up a research team with participants from the US, China, Korea, and Singapore, who have together produced and demonstrated a new flexible and implantable LED array. Bettering previous efforts at inserting lights under the human skin, this approach allows for stretching and twisting by as much as 75 percent, while the whole substrate is encased in thin silicon rubber making it waterproof. Basically, it's a green light to subdermal illumination, which could aid such things as monitoring the healing of wounds, activating light-sensitive drug delivery, spectroscopy, and even robotics. By which we're guessing they mean our robot overlords will be able to color-code us more easily. Yeah, that must be it.
Implantable blood sugar sensor could eliminate daily finger pricks
Science has been figuring out ways to sidestep those dreaded finger pricks for years now, but it's not often that we hear of such a permanent solution as this. A crew of researchers from The University of Tokyo and BEANS Research Institute are in the process of developing a newfangled blood sugar sensor that "reacts to glucose and lights up inside the body." 'Course, injecting dyes into humans in order to receive interpretable signals ain't exactly new, but hydrogel is what makes this approach unique. As the story goes, this jelly-esque material can be implanted within the body, enabling blood sugar levels to be monitored and measured externally with no pain or irritation whatsoever. In theory, a monitoring system could trigger an alert as soon as the internal levels dipped or rose beyond a predetermined extreme, giving those with diabetes a maximum amount of time to get things back in balance. There's nary a mention of when this goo will be green-lit by the FDA, but there's definitely a video explaining everything just past the break.
MIT working up microbatteries to power implantable medical sensors
In the never-ending quest to make even the smallest devices on Earth a touch smaller, a talented team of MIT engineers have developed a method for creating and installing microbatteries, which could eventually power a plethora of diminutive devices including "labs-on-a-chip and implantable medical sensors." It's bruited that this is the first time in which "microcontact printing has been used to fabricate and position microbattery electrodes and the first use of virus-based assembly in such a process," and while you'd likely have to be a colleague to even digest that, the take away is that these gurus are one step closer to generating battery-powered Scrubbing Bubbles. And your shower could use 'em.[Via PCMag]
Alzheimer's patients, caregivers receiving VeriMed RFID chips
Caring for those with Alzheimer's could be getting a whole lot less stressful, as VeriChip has reportedly doled out 25 VeriMed RFID implantable microchips at the Alzheimer's Community Care 2007 Alzheimer's Educational Conference. Of course, these aren't the first invasive chips that the company has crammed under folks' skin for one reason or another, but these data packin' devices are aiming to provide medical personnel "quick access to identification and medical records information in an emergency situation." Interestingly, not much else was said about future rollouts beyond this small sample trial, but we can't imagine these not showing up en masse (and in humans) once it gets the green light from regulators.
Battery-free pacemaker on the horizon
Having one surgery is plenty, and having some foreign object implanted in your being is really pushing things, but knowing you're going to be under the knife every ten years or so to get a new battery is just absurd. Thankfully, a group of researchers in the UK feel the same way, and are well on their way to developing a battery-free pacemaker. Reportedly, the device would use a microgenerator producing electricity every time the patient moves, effectively eliminating the need for an internal battery. The cost of the £1 million ($1.96 million) project is being shared by the Department of Trade and Industry and private companies, one being Zarlink Semiconductor who has a large role in the device's development. Other teams around the globe are also seeking to create such a unit, with ideas spanning from tiny generators that receive power from heat right onto "biological pacemakers" that would correct heart problems without the need for a mechanical device. While there's no estimate as to when these gizmos will even hit the testing and approval phase, it seems that things are moving along quite well, but we have to stop and wonder how well a pacemaker powered by motion will function when you, well, cease moving.[Via MedGadget]
