Redundant piston pump for the operation of single or multiple chambered pneumatic blood pumps
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United States of America Patent
Stats
-
Sep 16, 1986
Grant Date -
N/A
app pub date -
Apr 27, 1984
filing date -
May 3, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A redundant, pneumatic driver for a blood pump in which a pair of pistons are contained in a common cylinder and their stroke rates and lengths are selectively controlled by a controller which non-invasively senses the circulatory system requirements of the patient in which the blood pump is implanted. The controller varies the stroke rates and lengths to meet such requirements and further is able to selectively switch driving functions from one piston to the other to provide a redundant driving capability.
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