In vivo mechanical energy source

Details In vivo mechanical energy source In vivo mechanical energy source

1997-02-05

1998-10-20

Kamm, William E.

Surgery

Miscellaneous

Devices placed entirely within body and means used therewith

A61B 1900

Patent

active

058231994

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: 5492131 (1996-02-01), Galel
patent: 5624380 (1997-04-01), Takayama et al.

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