Intraaortic balloon insertion

Details Intraaortic balloon insertion Intraaortic balloon insertion

1990-10-09

1992-02-25

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

606194, 600 18, A61M 2510

Patent

active

050909576

ABSTRACT:
A mechanism stretches and slightly twists an intraaortic balloon to a stretched and wrapped state prior to insertion or removal. One embodiment includes a member which extends through a catheter from the handle to the balloon, and which advances to extend the balloon while slightly twisting it. A spiral drive screw assembly in the handle defines a precise ratio of balloon extension to twist, and also defines fixed total amounts of twist and extension delivered by the member. The mechanism permits the balloon to be fully untwisted once it is inserted and to be recompacted, following use, for removal from the patient. The device is of particular utility for a large diameter or non-cylindrical balloon, and for inserting a balloon along an arterial path having a narrow passage or sharp curve.

REFERENCES:
patent: 4292974 (1981-10-01), Fogarty et al.
patent: 4483340 (1984-11-01), Fogarty et al.
patent: 4552127 (1985-11-01), Schiff
patent: 4644936 (1987-02-01), Schiff

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