Catheter with expansible distal end

Details Catheter with expansible distal end Catheter with expansible distal end

1991-06-10

1993-05-18

Yasko, John D.

Surgery

Instruments

Internal pressure applicator

606194, A61M 2902

Patent

active

052116549

ABSTRACT:
A catheter for the opening of occlusions in blood vessels and for similar purposes has a distal end with a one-piece or composite sleeve which can be inserted into an occlusion and thereupon expanded by a balloon or a spring. The sleeve is sufficiently stiff to resist localized deformation by hard regions of an occlusion, and such sleeve is withdrawn from the blood vessel when the opening step is completed. The sleeve can constitute a scroll, a longitudinally slotted hose or a combination of a scroll or hose with an elastic jacket which tends to reduce the diameter of the scroll or hose.

REFERENCES:
patent: 1690995 (1928-11-01), Pratt
patent: 3045677 (1962-07-01), Wallace
patent: 4702252 (1987-10-01), Brooks et al.
patent: 4723549 (1988-02-01), Wholey et al.
patent: 4793359 (1988-12-01), Sharrow
patent: 4796629 (1989-01-01), Grayzel
patent: 4819751 (1989-04-01), Shimada et al.
patent: 5100429 (1992-03-01), Sinofsky et al.
patent: 5116318 (1992-05-01), Hillstead

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