Leak detector for an intra-aortic balloon pump

Details Leak detector for an intra-aortic balloon pump Leak detector for an intra-aortic balloon pump

1992-03-27

1993-09-07

Rosenbaum, C. Fred

Surgery

Cardiac augmentation

Aortic balloon pumping

604100, 606192, A61M 2900

Patent

active

052423743

ABSTRACT:
The invention is directed to a leak detector for an intra-aorta balloon pump which has a pressure source for pressurizing a primary fluid, a balloon filled with a secondary fluid and inflated thereby, and an isolating device which includes a diaphragm for defining a primary chamber and secondary chamber within the device. The primary chamber is communicated with the pressure source and supplied with the primary fluid, and the secondary chamber is communicated with the balloon and filled with the secondary fluid. The leak detector includes a sensor for detecting a relative position of the diaphragm against at least an inner surface of one of the primary chamber and secondary chamber, and determines a leak of the secondary fluid in response to the relative position of the diaphragm detected by the sensor.

REFERENCES:
patent: 3698381 (1972-10-01), Federico et al.
patent: 3720199 (1973-03-01), Rishton et al.
patent: 3769960 (1973-11-01), Robinson
patent: 4016871 (1977-04-01), Schiff
patent: 4733652 (1988-03-01), Kantrowitz et al.
patent: 4796606 (1989-01-01), Mushika
patent: 4832005 (1989-05-01), Takamiya et al.
patent: 5045051 (1991-09-01), Milder et al.

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