Quotes: US MENA   Enter Symbol: NewsLetter: Search: advanced

UAE- A pacemaker fuelled by heartbeat  Join our daily free Newsletter

MENAFN - Khaleej Times - 10/11/2012

No. of Ratings : 0
Add to Mixx!


 


(MENAFN - Khaleej Times) An experimental device could use the energy of a beating heart to keep the pacemaker going, doing away with battery replacements every five to seven years.

A preliminary study by researchers at the University of Michigan Ann Arbor tested an energy-harvesting device that uses piezoelectricity - electrical charge generated from motion.

The approach is an innovative solution for pacemakers, because they require only small amounts of power to operate, said M. Amin Karami, research fellow in aerospace engineering at Michigan, who led the study.

"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," added Karami, according to a Michigan statement.

Researchers measured heartbeat-induced vibrations in the chest. Then, they used a 'shaker' to reproduce the vibrations in the lab 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 that 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.

Conversely, 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. His co-authors are David J. Bradley and Daniel J. Inman.

These findings were presented at the American Heart Association's Scientific Sessions 2012.

 






  MENA News Headlines


 
Click to Apply






Google

 
 

Middle East North Africa - Financial Network

MENAFN News Market Data Countries Tools Section  
 

Middle East North Africa - Financial Network
Arabic MENAFN

Main News
News By Industry
News By Country
Marketwatch News
UPI News
Comtex News

IPO News
Islamic Finance News
Private Equity News

How-To Guides
Technology Section

Travel Section

Search News

Market Indices
Quotes & Charts

Global Indices
Arab Indices

US Markets Details

Commodoties

Oil & Energy

Currencies Cross Rates
Currencies Updates
Currency Converter

USA Stocks
Arab Stocks
 

Algeria 
Bahrain 
Egypt 
Iraq
Jordan 
Kuwait 
Lebanon
Morocco 
Oman 
Palestine
Qatar 
Saudi Arabia 
Syria
Tunisia 
UAE 
Yemen

Weather
Investment Game
Economic Calendar
Financial Glossary

My MENAFN
Portfolio Tracker

Voting

Financial Calculators

RSS Feeds [XML]

Corporate Monitor

Events

Real Estate
Submit Your Property

Arab Research
Buy a Research

Press Releases
Submit your PR

Join Newsletters


 
© 2000 menafn.com All Rights Reserved.  Terms of Service | Privacy Policy | Contact Us | Advertise | About MENAFN | Career Opportunities | Feedback | Help