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A self-powered artificial cardiac pacemaker

RATE THIS! +34
Posted in Science on 28th Jun, 2014 03:36 AM by AlexMuller

A team from Korea has developed a self-powered artificial cardiac pacemaker operated semi-permanently by a flexible piezoelectric nanogenerator. Currently, pacemaker batteries last seven years on average, requiring frequent replacements, which may pose patients to a potential risk involved in medical procedures.

 
The nanogenerator directly stimulated a living rat’s heart using electrical energy converted from the small body movements of the rat. The research team fabricated high-performance flexible nanogenerators utilizing a bulk single-crystal “PMN-PT” thin film energy harvester. The harvested energy reached up to 8.2 V and 0.22 mA by bending and pushing motions, which were high enough values to directly stimulate the rat’s heart.
 

“For clinical purposes, the current achievement will benefit the development of self-powered cardiac pacemakers as well as prevent heart attacks via the real-time diagnosis of heart arrhythmia,” said Professor Keon Jae Lee of the Department of Materials Science and Engineering at KAIST. “The flexible piezoelectric nanogenerator could also be utilized as an electrical source for various other implantable medical devices.”


Tags: heartpacemakerhealthheart disease

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Comments

Author: Guest
Posted: 2014-06-28
+2
There are so many good developments in cardiovascular innovation. This may not be a big new step in treatments, however, will be significant improvement in already established procedures for pacemakers
2 Replies
Author: Guest
Posted: 2014-06-28
+3
Yes, You can imagine how many operations they are spared if this new technology is implemented! Reply
Author: Guest
Posted: 2014-06-28
+1
I agree, this may look as a little improvement, not a great solution to a big problem- however, in practice this could be very helpful and significant. Indeed, this could save many operations needed to replace pacemakers because of the battery life Reply
Reply
Author: Guest
Posted: 2014-06-28
+1
There are some other recent developments that could change and facilitate use of pacemakers. The world’s smallest pacemaker has been developed that is one-tenth of the size of a conventional pacemaker and is delivered directly into the heart through a catheter inserted in the femoral vein! Reply


 

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