We’ve been tracking Professor Zhong Lin Wang’s flexible nanogenerator here on Medgadget for quite some time now. In case you forgot, Wang, a professor in the School of Materials Science and Engineering at the Georgia Institute of Technology, created the nanogenerator, a flexible chip with millions of tiny piezoelectric wires that can use body movements to generate electricity.
This week at the National Meeting & Exposition of the American Chemical Society in Anaheim, California, Wang announced that his team had succeeded in boosting the device’s power output so that it is commercially viable. They claim that the nanogenerator is now powerful enough to drive commercial LCDs, LEDs, laser diodes, and can power a sensor and transmit its signal wirelessly. According to Wang, the output of five nanogenerators stacked together is approximately 1 micro Ampere current at 3 volts, about the same voltage generated by two regular AA batteries.
Wang’s team demonstrated their nanogenerator during the meeting by squeezing the nanogenerator between two fingers to power an LED light and a liquid crystal display.
Potential consumer applications include personal electronics devices powered by footsteps that activate nanogenerators inside the sole of a shoe and implanted insulin pumps powered by a heart beat.
Link: First practical nanogenerator produces electricity with pinch of the fingers…
Previously on Medgadget: Nanogenerator to Power Nanoscale Devices, Implantable Medgadgets; Nanogenerator Converts Body’s Energy into DC Output; Flexible Nanogenerators to Power Implantable Microdevices
Archives: 3/2011

Microline Surgical (Beverly, MA) has released its new MiSeal Reposable Thermal Ligating
System. The device seals and cuts soft tissue in one stroke utilizing the company’s proprietary heat and pressure welding technology.
From the press release:
MiSeal is comprised of a reusable handle and disposable tips, combining the precision of a fully disposable instrument with the economic benefits and quality of a fully reusable handpiece. Unlike conventional products that use monopolar, bipolar or ultrasonic energy as modes of operation, MiSeal features proprietary tissue welding technology, which employs direct thermal energy and focused pressure to create a high-integrity
seal and a clean division, while minimizing the risk of collateral tissue damage.
The 5mm MiSeal features heating elements at the distal tip, which are activated by a finger switch located on the handpiece of the device. The instrument’s dual-action jaw can be used as a dissector or grasper, minimizing instrument exchanges and improving efficiency in the operating room. MiSeal is powered by the Universal Power Supply (UPS), a compact, three-pound, reusable power source that can hang from an IV pole or sit on a tabletop, offering ease of set-up and use, which can reduce procedure and clean-up time.
Press release: Microline Surgical launches MiSeal™ Reposable Thermal Ligating System at SAGES 2011 Annual Meeting
Product page: MiSeal Reposable Thermal Ligating System
Abbott‘s i-STAT 1 Wireless point-of-care blood analyzer has been cleared by the FDA. Improving on the popular wired i-STAT, the wireless version can automatically transmit readings to a central computer without having to physically sync with it. The device accepts various cartridges for specific tests.
• Requires no special sample preparation or user calibration; maintenance is minimal
• Weighs 18 ounces, making it completely portable
• Features ergonomically-designed soft keys for comfort and ease of use
• The system prompts users step by step through the testing process
• Operator and patient information can be entered via barcode scanner
• Operator lockout prevents unauthorized users from performing or viewing test results
• Test results are uploaded automatically when the i-STAT handheld is placed in a downloader
Press release: FDA Clears Abbott’s i-STAT® 1 Wireless Point of Care Testing System
Product page: i-STAT System…
PDF of complete range of cartridges available for i-STAT…
Flashback: i-Stat
The United States Senate is getting its own Medical Technology Caucus.
The co-chairs of the caucus will, of course, be Senators from Minnesota and Massachusetts, Amy Klobuchar (D) and Scott Brown (R) respectively.
More from MedCity News: Medical device industry getting bipartisan support in Senate…
Flashback: House Medical Technology Caucus Now Online
Image credit: Stellas mom
MetaCure, with offices in U.S., Germany and Israel, is a medical device firm working on a novel gastric stimulation system designed to help type II diabetes patients lower their blood glucose and control their eating habits and body weight. The electro-stimulating device, CE Marked in Europe and now marketed under brand name DIAMOND (Diabetes Improvement And MetabOlic Normalization Device), can be placed laparoscopically, its three bipolar leads attached to the gastric wall. The procedure also involves the creation of subcutaneous pockets for the stimulator and charge coil. Relying on a proprietary algorithm, the device is designed to stimulate gastric muscles around the time of food intake to induce satiety. A company representative tells us that the system’s name “reflects [company's] findings that the DIAMOND not just facilitates glycemic control but also induces a comprehensive beneficial metabolic effect by leading to weight loss, waist circumference reduction, significant lowering of blood pressure (systolic and diastolic), as well as improvement in lipid profile. The DIAMOND has a CE mark since 2007 and has been implanted in over 200 patients in the US, Europe and Asia. It is well tolerated by patients and brings about a significant reduction in HbA1c levels… ”
Here’s how the product brochure explains the device’s physiologic impact:
MetaCure’s innovative patent protected technology is based on a novel algorithm for automatic food intake detection, and consequent electrical stimulation of the antral stomach muscles. Based on a proprietary technology developed for treating Chronic Heart Failure, the stimulation is non-excitatory and timed to coincide with refractory periods, enhancing gastric muscle contractility, and activating neurons that stimulate hormone secretion, which improves glucose metabolism. Simultaneously, the stimulation also enhances satiety and lowers food consumption. Both effects form a better balance of the post-Prandial metabolic process, resulting with an improvement in blood glucose levels, which is often accompanied by weight loss, and reduction of blood pressure and waist circumference.
The system has not yet received FDA approval.
Product page: DIAMOND system…
Technology page…
The American Medical Association is calling on doctors and med students to submit ideas for mobile medical apps. Winners may even have their ideas made into actual apps with help from the AMA. It looks like the association is getting into the app business with the release of their new CPT (Current Procedural Terminology) quick reference app for iOS devices.
Open to all U.S. physicians, residents and medical students, the 2011 AMA App Challenge calls on those on the front lines of medicine to submit their unique app idea for a chance to have the AMA bring it to life. Participants can submit their app ideas easily through an online form beginning today. Submissions will be accepted through June 30th, 2011. Two winners will be selected, one from the resident/fellow or medical student category and one from the physician category. The winners will each receive $2,500 in cash and prizes, plus a trip for two to New Orleans for the grand unveiling of their winning idea at the AMA’s meeting in November.
Press release: AMA Introduces Its First-Ever Physician App; Launches App Challenge…

NeuroLogica, the company which already delivered a mobile head CT, has now received FDA approval for a portable, full body, multi slice CT scanner, the BodyTom. The BodyTom is a 32 slice CT with a 85cm gantry and 60cm field of view. It can be operated battery powered (up to 12 hours) or plugged into standard wall power outlets. The vision of the company is to bring the CT to the patient instead of vice versa, whether into the clinic, ICU, OR or emergency department. Apart from the increased portability, one of the most interesting new possibilities this brings is intraoperative CT, instead of the good old fluoroscopic imaging, without the need of an expensive dedicated CT-equipped operating room. The following comes from the intraoperative applications feature page:

Intraoperative Applications
The combination of portability, speed and versatility in clinical applications makes portable intraoperative CT a highly cost-effective solution. The range of clinical applications includes cranial, spinal, ENT, head & neck, CMF, trauma, orthopedic and vascular surgery.
Soft Tissue Resolution
With the use of the BodyTomTM, the surgeon is presented with additional information through advanced CT visualization. Not only can the BodyTomTM deliver high quality bone and spine imaging, but high resolution soft tissue imaging not found with typical flat-panel fluoroscopic imaging. This may yield greater surgical precision with improved patient outcomes. It also allows the surgeon to assess any complications which may have formed during the procedure prior to taking the patient off the operating table.
Navigation Integration
The BodyTomTM produces fully DICOM 3.1 compliant images which can be automatically sent to all of the leading computer assisted surgical navigation systems. This allows for the immediate update of the CT image for the purpose of navigation. Images can be transferred to the navigation system directly via Ethernet connection or through any form of external media (USB/CD/DVD).
Maintaining the Sterile Field
Maintaining the sterile field is of the utmost importance during every surgical procedure. Sterile drapes are available which can be applied quickly to maintain the sterile barrier between the BodyTomTM and the operating field.
Portability & Ease of Use
The design of the BodyTomTM provides the convenience of truly portable scanning. Any existing operating room can be utilized without any special modifications to the electrical supply. The BodyTomTM runs off of standard wall power, giving it the flexibility to be used in multiple rooms for any number of procedures over the course of the day.
Internal Lead Shielding & Radiation Protection
The BodyTomTM was designed with patient and staff safety in mind. We take the concerns about radioation exposure seriously, which is why the BodyTomTM is lined with 0.5mm of lead to cut back on any of the x-ray scatter off of the patient. A leaded shield is also provided on the BodyTomTM workstation to protect staff from any unnecessary exposure.
As an accessory to the CT unit, a portable workstation is offered, itself a well-packed computer-on-wheels which intriguingly lists an MP3 dock with a surround sound system as one of the main features. Sounds like NeuroLogica takes customers’ wishes really serious!
Press release: NeuroLogica Corporation Announces FDA 510(k) Clearance for BodyTom: a portable, full body, multi-slice CT scanner – Danvers, Mass…
Product page: BodyTom…
Singularly University, the renowned Silicon Valley playground for interdisciplinary thinkers and doers, has placed its crosshairs on medicine with the launch of FutureMed, an executive education program exploring how exponentially improving technologies will change the future of health and medicine. FutureMed is a five day immersive program taking place at NASA’s Ames Research Park in Mountain View, California. Participants will live and be hosted on the Ames campus from May 10th – 15th, and the 8am-10pm days will include a mix of lectures, interactive workshops, demos, site-visits, un-conferences, and various social events.
Faculty include the likes of Peter Diamandis, Dean Ornish, and Tim O’Reilly, and the tracks will cover topics ranging from robotic surgery, artificial intelligence, and medical decision making, to mobile and web-enabled care delivery. If you’d like to join in on the fun, Singularity University has offered Medgadget readers $1,000 off the program fee. Use the referral code “Medgadget” during registration to apply the discount.
From the FutureMed team:
FutureMed educates and prepares physicians, senior health care executives, entrepreneurs and investors to understand and recognize the opportunities and disruptive influences of exponentially growing technologies. These game changing technologies and innovations have great implications in medicine, healthcare and the biomedical industry in the decade ahead.
Core tracks include those which will explore the exponential trends in Information/Data-driven and internet enabled health care, Genomics and Personalized Medicine, Regenerative Medicine, Robotics & Future Interventional approaches, NeuroMedicine, Device & Drug development, and Entrepreneurship. Talks, Workshops and site visits will be led by a mix of world class faculty from across the biomedical and healthcare spectrum.
Link: FutureMed…
The editors of Medgadget would like to wish all the docs out there a happy Doctor’s Day!
The holiday commemorates the day when Dr. Crawford W. Long of Jefferson, GA performed the first surgery under anesthesia on March 30, 1842.
James Venable, the patient, received a dose of ether before having a tumor in his neck removed, and so began an age when patients don’t go through the horror of being cut awake and doctors can perform immensely more complicated procedures.
A bit more history about Doctor’s Day from our earlier post…










