Intra-aortic balloon pump apparatus

Details Intra-aortic balloon pump apparatus Intra-aortic balloon pump apparatus

1992-03-27

1993-04-13

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604247, A61M 2900

Patent

active

052017079

ABSTRACT:
The present invention is directed to an ultra-aortic balloon pump apparatus which comprises a catheter, a balloon connected to the catheter, a negative pressure source for withdrawing a fluid from the catheter and applying a negative pressure to the balloon through the catheter, and a check valve which is disposed between the catheter and the negative pressure source. The check valve is adapted to allow the fluid flow therethrough from the catheter to the negative pressure source and prevent the fluid from flowing from the negative pressure source to the catheter. The check valve defines therein a pressure chamber communicated with the balloon through the catheter, and which is deformed when the negative pressure is applied to the pressure chamber.

REFERENCES:
patent: 3901246 (1975-08-01), Wallace
patent: 4733652 (1988-03-01), Kantrowitz et al.
patent: 4790821 (1988-12-01), Stines
patent: 4856510 (1989-08-01), Kowalewski

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