Dilatation catherter apparatus

Details Dilatation catherter apparatus Dilatation catherter apparatus

1980-10-20

1982-07-13

Thaler, Michael H.

Surgery

Truss

Pad

128325, 128349B, A61M 2902

Patent

active

043389422

ABSTRACT:
A dilatation catheter is provided with a double lumen tube and inner and outer inflatable and deflatable balloon elements, one within the other. The inner bag element is twisted for retraction while the outer bag element is inflated. Subsequent deflation of the outer bag element serves to further laterally compress the inner bag element and provide a smooth buffering surface for engagement with blood vessel walls as the catheter is moved past them.

REFERENCES:
patent: 2616429 (1952-11-01), Merenlender
patent: 2688329 (1954-09-01), Wallace
patent: 3426744 (1969-02-01), Ball
patent: 3481339 (1969-12-01), Puig
patent: 3799172 (1974-03-01), Szpur
patent: 3837347 (1974-09-01), Tower
patent: 3996938 (1976-12-01), Clark
patent: 4046151 (1977-09-01), Rose
patent: 4105022 (1978-08-01), Antoshkiw et al.
patent: 4261339 (1981-04-01), Hanson et al.

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