Stiffened dilatation catheter and method of manufacture

Details Stiffened dilatation catheter and method of manufacture Stiffened dilatation catheter and method of manufacture

1986-09-02

1988-10-04

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

604103, 604 98, 128344, A61M 2500

Patent

active

047753714

ABSTRACT:
Stiffened dilation catheter and method of manufacturing the same. The catheter has a relatively stiff proximal end portion formed by bonding a relatively stiff tubular member coaxially within the proximal end portion of a relatively soft outer tubular member. The outer tubular member has a distensible portion which forms an inflatable balloon. An inner tubular member or shaft having an axial lumen adapted to receive a guide wire is positioned coaxially within the other tubular members. The distal end portions of the inner and outer tubular members are sealed together to close the distal end of the balloon, and an annular passageway for inflating and deflating the balloon is formed between the outer wall of the inner member and the inner wall of the stiffened proximal end portion of the outer tubular member. The relative wall thicknesses of the inner and outer tubular members can be varied to provide any desired stiffness or profile of stiffness along the length of the catheter.

REFERENCES:
patent: 4239042 (1980-12-01), Asai
patent: 4323071 (1982-04-01), Simpson et al.
patent: 4563181 (1986-01-01), Wijayarathna et al.
patent: 4571240 (1986-02-01), Samson et al.
patent: 4581390 (1986-04-01), Flynn
patent: 4597755 (1986-07-01), Samson et al.
patent: 4636346 (1987-01-01), Gold et al.
patent: 4702252 (1987-10-01), Brooks et al.

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