Pneumatic fluid actuated continuous passive motion device
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United States of America Patent
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-
Jun 25, 1996
Grant Date -
N/A
app pub date -
Nov 15, 1993
filing date -
Nov 15, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A continuous passive motion device comprises a leg support frame actuated by alternately, pneumatically inflating and deflating a bladder assembly. The assembly includes a series of interconnected bladders associated with a pump and a three-way solenoid valve, and provided with flaps secured at a common point which act as a hinge. The secured flaps force movement of the bladders in an arcuate path during inflation and deflation, providing an operating force against pivotal components of the device thus actuating it. A photointerrupter control device is provided that controls the angular limits of the desired therapy.
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