Lubricious yet bondable catheter channel sleeve for over-the-wir

Details Lubricious yet bondable catheter channel sleeve for over-the-wir Lubricious yet bondable catheter channel sleeve for over-the-wir

1992-01-17

1994-04-19

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

606194, A61M 2900

Patent

active

053041348

ABSTRACT:
The inner tubular element of an annular over-the-wire dilatation balloon catheter defines the guidewire lumen extending through the catheter shaft and the balloon and is bonded to the balloon at the distal opening of the balloon. In accordance with the invention, the inner tubular element is constructed in two segments. The proximal segment is constructed of a polymer such as polyethylene which has a lubricious surface, while the distal segment is constructed of a polymer such as nylon, polyurethane, or a nylon/polyurethane blend, which lacks lubricity but forms a secure bond with the balloon at the distal opening. The bond by which the proximal and distal segments are joined is thus removed from the distal balloon opening, and accordingly less susceptible to failure upon pressurization of the balloon.

REFERENCES:
patent: 4563181 (1986-01-01), Wijayarathna et al.
patent: 4782834 (1988-11-01), Maguire et al.
patent: 4863424 (1989-09-01), Blake, III et al.
patent: 4898591 (1990-02-01), Jang et al.
patent: 4950257 (1990-08-01), Hibbs et al.
patent: 4981478 (1991-01-01), Evard et al.
patent: 5100381 (1992-03-01), Buns
patent: 5120323 (1992-06-01), Schokey et al.

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