In vivo mechanical energy source and perfusion pump

Details In vivo mechanical energy source and perfusion pump In vivo mechanical energy source and perfusion pump

1994-11-21

1997-05-13

Kamm, William E.

Surgery

Cardiac augmentation

A61M 112

Patent

active

056287194

ABSTRACT:
An in vivo source of mechanical energy is provided in close proximity to its load. In the disclosed embodiments, the mechanical energy source is a miniaturized motor ("micromotor") and the load is a miniaturized perfusion pump located at the distal end of a transluminal catheter. The motor is powerful enough to provide the electrical energy needed by the perfusion pump to fluid, and yet small enough to fit inside a body vessel. A position sensor may be provided for automatically controlling the motor's driving current so that it is corresponds to the applied load. An embodiment of the perfusion pump is also provided in which an external energy source is used. Another embodiment is provided wherein a balloon/pump/miniaturized-motor configuration is provided on a distal end of a catheter.

REFERENCES:
patent: 4375941 (1983-03-01), Child
patent: 4437815 (1984-03-01), McMullen
patent: 5085562 (1992-02-01), van Lintel
patent: 5092844 (1992-03-01), Schwartz et al.
patent: 5163910 (1992-11-01), Schwartz et al.
patent: 5360445 (1994-11-01), Goldowsky

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