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artificial heart
(redirected from Mechanical heart)

    Also found in: Medical, Wikipedia 0.06 sec.
artificial heart: see heart, artificial ventricular assist device (VAD), or "artificial ventricle," is an internally implanted pump designed to aid a person with a failing left ventricle; unlike an artificial heart, it does not require removal of the patient's heart.
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artificial heart

Machine or mechanical pump that maintains blood circulation in the human body. The heart-lung machine, a mechanical pump, can maintain circulation for a few hours while the heart is stopped for surgery. It shunts blood away from the heart, oxygenates it, and returns it to the body. No device has yet been developed for total, long-term replacement of the heart; existing artificial hearts reduce the heart's workload by pumping between beats or acting as an auxiliary ventricle and are suitable only as temporary replacements in patients awaiting transplant. See also pacemaker.



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contact lenses, central venous catheters and needleless connectors, endotracheal tubes, intrauterine devices, mechanical heart valves, pacemakers, peritoneal dialysis catheters, prosthetic joints, tympanostomy tubes, urinary catheters, and voice prostheses).
Biofilms and Device-Associated Infections by Donlan, Rodney M. / Emerging Infectious Diseases
There was also the ka-chung ka-chung of the Addressograph--the mechanical heart of the Circulation Department--valiantly printing out thousands of subscription labels from towers of small plastic stencils.
HORN BOOK REMINISCENCES: From Karen Jameyson by Jameyson, Karen / The Horn Book Magazine
These nickel parts, which might one day form the mechanical heart of teensy motors or minute power tools, range in width between a tenth and a fifth of a millimeter, smaller than a salt grain.
Gearing down: engineers fabricate metal parts the size of dust specks by Amato, Ivan / Science News
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