Navigation Links
New device could allow your heartbeat to power pacemaker

An experimental device converted energy from a beating heart to provide enough electricity to power a pacemaker, in a study presented at the American Heart Association's Scientific Sessions 2012.

The findings suggest that patients could power their pacemakers eliminating the need for replacements when batteries are spent.

In a preliminary study, researchers tested an energy-harvesting device that uses piezoelectricity electrical charge generated from motion. The approach is a promising technological solution for pacemakers, because they require only small amounts of power to operate, said M. Amin Karami, Ph.D., lead author of the study and research fellow in the Department of Aerospace Engineering at the University of Michigan in Ann Arbor.

Piezoelectricity might also power other implantable cardiac devices like defibrillators, which also have minimal energy needs, he said.

Today's pacemakers must be replaced every five to seven years when their batteries run out, which is costly and inconvenient, Karami said.

"Many of the patients are children who live with pacemakers for many years," he said. "You can imagine how many operations they are spared if this new technology is implemented."

Researchers measured heartbeat-induced vibrations in the chest. Then, they used a "shaker" to reproduce the vibrations in the laboratory and connected it to a prototype cardiac energy harvester they developed. Measurements of the prototype's performance, based on sets of 100 simulated heartbeats at various heart rates, showed the energy harvester performed as the scientists had predicted generating more than 10 times the power than modern pacemakers require. The next step will be implanting the energy harvester, which is about half the size of batteries now used in pacemakers, Karami said. Researchers hope to integrate their technology into commercial pacemakers.

Two types of energy harvesters can power a typical pacemaker: linear and nonlinear. Linear harvesters work well only at a specific heart rate, so heart rate changes prevent them from harvesting enough power.

In contrast, a nonlinear harvester the type used in the study uses magnets to enhance power production and make the harvester less sensitive to heart rate changes. The nonlinear harvester generated enough power from heartbeats ranging from 20 to 600 beats per minute to continuously power a pacemaker. Devices such as cell phones or microwave ovens would not affect the nonlinear device, Karami said.


Contact: Bridgette McNeill
American Heart Association

Related medicine news :

1. OU research team developing robotic devices to aid infants with cerebral palsy
2. BMJ and Daily Telegraphs fake hip exposes failing European device regulation
3. New Device May Reduce Repeat Breast Cancer Surgeries
4. New device to remove stroke-causing blood clots proves better than standard tool
5. Study: Clot removal devices successful tools for acute ischemic stroke treatment
6. Could FastStitch device be the future of suture?
7. Retinal Device Restores Sight to Blind Mice
8. Mechanical Device Helps Kids Waiting for Heart Transplant
9. Unprecedented accuracy in locating brain electrical activity with new device
10. Cell-Based Tracking Devices Might Help Monitor Treatments
11. Device converting images into music helps individuals without vision reach for objects in space
Post Your Comments:
(Date:10/13/2017)... ... , ... “The Journey: From the Mountains to the Mission Field”: the story ... the Philippines. “The Journey: From the Mountains to the Mission Field” is the creation ... has taught all ages and currently teaches a class of ladies at her church, ...
(Date:10/12/2017)... WILMINGTON, Del. (PRWEB) , ... October 12, 2017 ... ... technology and advisory services for healthcare compliance program management, will showcase a range ... and National Association for Assisted Living (NCAL) Convention and Expo to be held ...
(Date:10/12/2017)... ... 12, 2017 , ... Planet Fitness, one of the largest and fastest growing ... open a flagship location in Covington, LA at 401 N. U.S. Highway 190, in ... to Office Depot in the Holiday Square shopping center. Its location allows it to ...
(Date:10/12/2017)... Fla. (PRWEB) , ... October 12, 2017 , ... IsoComforter, ... therapy products, announced today the introduction of an innovative new design of the shoulder ... pad so you get maximum comfort while controlling your pain while using cold therapy. ...
(Date:10/12/2017)... ... October 12, 2017 , ... Asante, a ... health care, have expanded their existing home health joint venture through an agreement, ... been operating a joint venture home health company with Asante, delivering clinically integrated ...
Breaking Medicine News(10 mins):
(Date:10/2/2017)... , Oct. 2, 2017 The Rebound mobile app ... struggle to reverse the tide of prescription drug addiction. The ... their medicine intake and stepping down their dosage in a ... launch in December 2017; the first 100,000 people to sign ... at ...
(Date:9/27/2017)... Israel and NEW YORK , Sept. 27, ... with mobile health and big data solutions, today announced that its MyDario ... Please check your local TV listings for when The Dr. Oz Show ... ... season this month. ...
(Date:9/22/2017)... 2017  As the latest Obamacare repeal effort moves ... (R-LA) and Lindsey Graham (R-SC) medical ... device industry is in an odd place.  The industry ... excise tax on medical device sales passed along with ... patients, increased visits and hospital customers with the funding ...
Breaking Medicine Technology: