News tagged with pacemaker
Power without the cord
Cell phones and flashlights operate by battery without trouble. Yet because of the limited lifespan, battery power is not a feasible option for many applications in the fi elds of medicine or test engineering, ...
Apr 02, 2012 |
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New design techniques enable extremely reliable medical devices
For pacemakers and other implantable medical devices there are three key factors: extreme reliability, small size, and long longevity. In the EU project Desyre, researchers tackle these issues with a new approach: ...
Technology / Computer Sciences
Mar 12, 2012 |
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Heart-powered pacemaker could one day eliminate battery-replacement surgery
A new power scheme for cardiac pacemakers turns to an unlikely source: vibrations from heartbeats themselves.
Mar 02, 2012 |
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Powering pacemakers with heartbeat vibrations
Sick hearts may help to keep themselves beating longer with a device that could harvest energy from heartbeat-induced chest cavity vibrations.
Feb 01, 2012 |
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Shine a light instead of changing the battery
(PhysOrg.com) -- Pacemakers and other implanted medical devices require electric current to operate. Changing the battery requires an additional operation, which is an added stress on the patient. A Japanese team led by Eijiro ...
Dec 01, 2011 |
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Cobblestones fool innate immunity
Coating the surface of an implant such as a new hip or pacemaker with nanosized metallic particles reduces the risk of rejection, and researchers at the University of Gothenburg, Sweden, can now explain why: they fool the ...
Nanotechnology / Bio & Medicine
Nov 29, 2011 |
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Researchers create first human heart cells that can be paced with light
In a compact lab space at Stanford University, Oscar Abilez, MD, trains a microscope on a small collection of cells in a petri dish. A video recorder projects what the microscope sees on a nearby monitor. The cells in the ...
Sep 20, 2011 |
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After insulin pump hacking, lawmakers seek review
(AP) -- Two lawmakers are requesting a review of the government's security standards for wireless medical devices after a diabetic discovered how to remotely reprogram his and other people's insulin pumps.
Aug 20, 2011 |
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Protecting medical implants from attack
Millions of Americans have implantable medical devices, from pacemakers and defibrillators to brain stimulators and drug pumps; worldwide, 300,000 more people receive them every year. Most such devices have ...
Jun 13, 2011 |
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Tiny turbine in human artery harvests energy from blood flow
(PhysOrg.com) -- A small turbine located inside a millimeters-wide human artery could harvest enough energy from blood flow to power implanted medical devices, such as pacemakers and drug-delivery pumps. The ...
May 20, 2011 |
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New type of pacemaker perfect for patients with less severe symptoms
Victor Timmins was having trouble doing even the simplest tasks; even walking was difficult.
Medicine & Health / Medical research
Feb 23, 2011 |
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FDA approves first MRI-safe pacemaker
The US Food and Drug Administration on Monday approved the first pacemaker system -- produced by medical device giant Medtronic Inc. -- that can be used safely with MRI scanners.
Feb 08, 2011 |
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Brain pacemakers: A long-lasting solution in the fight against depression
Physicians from the University of Bonn, Germany, together with colleagues from the US, have suggested a new target structure for a very promising depression therapy, the so-called deep brain stimulation. They hope to achieve ...
Medicine & Health / Neuroscience
Jan 31, 2011 |
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Recycling pacemakers could save lives in needy countries
In the United States, pacemakers cost $10,000 to $50,000 to implant. About 100,000 Americans undergo the surgery each year. These life-saving devices, however, are mostly discarded in medical waste or buried with people when ...
Dec 20, 2010 |
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Lyfish-inspired pumps: Researchers investigate next generation medical and robotic devices
To the causal aquarium visitor, the jellyfish doesn't seem to be a particularly powerful swimmer; compared to a fish, it glides slowly and peacefully.
Nov 23, 2010 |
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Artificial pacemaker
A pacemaker (or artificial pacemaker, so as not to be confused with the heart's natural pacemaker) is a medical device which uses electrical impulses, delivered by electrodes contacting the heart muscles, to regulate the beating of the heart. The primary purpose of a pacemaker is to maintain an adequate heart rate, either because the heart's native pacemaker is not fast enough, or there is a block in the heart's electrical conduction system. Modern pacemakers are externally programmable and allow the cardiologist to select the optimum pacing modes for individual patients. Some combine a pacemaker and defibrillator in a single implantable device. Others have multiple electrodes stimulating differing positions within the heart to improve synchronisation of the lower chambers of the heart.
For more information about Artificial pacemaker, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
