Temporary blood circulation assist device

Details Temporary blood circulation assist device Temporary blood circulation assist device

2006-01-03

2006-01-03

Pezzuto, Robert E. (Department: 3762)

Surgery

Cardiac augmentation

C623S003100, C623S003130

Reexamination Certificate

active

06981942

ABSTRACT:
An inflatable circulation assist device is disclosed consisting of an inflatable stator housing an impeller with inflatable blades of varying shapes and sizes. The invention is introduced into the patient percutaneously. The circulation assist device is a small pump packaged into a compact form that is attached to a long flexible driveshaft. The pump is inserted along a guidewire to a target location, and then the pump is inflated. The circulation assist device's exterior is designed to expand only so much as to closely fit whatever cardiovascular system element in which it is placed for operation. The vascular assist device can be expanded either by inflation with a fluid. The driveshaft, which connects to the circulation assist device's impeller and extends outside the patient's body, is rotated by an external motor. After the circulation assist device is no longer needed, it is collapsed into a compact form and removed from the patient percutaneously.

REFERENCES:
patent: 5092844 (1992-03-01), Schwartz et al.
patent: 5588812 (1996-12-01), Taylor et al.
patent: 5749855 (1998-05-01), Reitan
patent: 6227820 (2001-05-01), Jarvik
patent: 6245007 (2001-06-01), Bedingham et al.

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