COUNTER PULSATION SYSTEM AND METHOD FOR STROKE RECOVERY TREATMENT
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United States of America Patent
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Issued Date -
Jan 17, 2008
app pub date -
Jul 17, 2007
filing date -
Jul 17, 2006
priority date (Note) -
Abandoned
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Abstract
A counterpulsation system for enhancing blood flow in a patient includes inflatable cuffs positionable on a leg of a patient. Three cuffs are preferably used for positioning on the calf, thigh, and buttocks. The cuffs are inflated in accordance with a timing sequence during diastole to enhance cerebral blood flow, and are then deflated. The process is repeated several times throughout a treatment session. A blood velocity sensor such as a transcranial Doppler (TCD) system detects cerebral blood flow velocity during treatment. The TCD output produces a first peak P1 corresponding to the blood flow velocity during a contraction of the heart and a second peak P2 corresponding to blood flow velocity resulting from the compression forces of the cuffs. If P2 does not exceed P1, the timing sequence is manually or automatically altered to optimize the effect of the compression sequence during diastole.
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