Cardiopulmonary function assisting device

Details Cardiopulmonary function assisting device Cardiopulmonary function assisting device

1995-08-14

1998-07-07

Lacyk, John P.

Surgery

Cardiac augmentation

Aortic balloon pumping

604 53, 604 96, 604101, A61N 1362

Patent

active

057760470

ABSTRACT:
A cardiopulmonary function assisting device includes a gas guide tube of which peripheral wall does not transmit gas or liquid such as blood and has a suitable rigidity and a suitable flexibility. A header is coaxially attached to an opening at the distal end of the gas guide tube. A plurality of balloons are attached to the distal end of the header. The balloons are formed of a gas permeable film and left in a blood vessel. Oxygen is supplied to the balloons through the gas guide tube, thereby expanding the balloons; oxygen is discharged from the balloons, thereby contracting the balloons. The expanding and contracting operations are repeated. As a result, when the balloons are expanded, oxygen is transmitted through the balloons and added to blood on the periphery of the balloons and the expanded balloons remove the blood away from the periphery. When the balloons are contracted, the periphery of the balloons is filled with blood.

REFERENCES:
patent: 4631053 (1986-12-01), Taheri
patent: 5308319 (1994-05-01), Ide et al.
The Japanese Journal of Artificial Organs; vol. 23 Suppln. 1994; Issued on Sep. 15, 1994.

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