Catheter tubing of controlled in vivo softening

Details Catheter tubing of controlled in vivo softening Catheter tubing of controlled in vivo softening

1994-05-18

1995-09-26

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604264, 604280, A61M 2500

Patent

active

054530997

ABSTRACT:
A catheter tubing has a layer of a hydrophobic stiffening polymer encapsulated by a layer of hydrophilic thermoplastic base polymer. Preferred stiffening polymers are polyesterpolyether block copolymers. Preferred base polymers are thermoplastic polyetherurethanes. The encapsulated layer may be a stripe or an annular layer having base polymer layers laminated on both surfaces thereof.

REFERENCES:
patent: 4062834 (1977-12-01), Gilding et al.
patent: 4119094 (1978-10-01), Micklus et al.
patent: 4424305 (1984-01-01), Gould et al.
patent: 4769013 (1988-09-01), Lorenz et al.
patent: 4994047 (1991-02-01), Walker et al.
patent: 5019057 (1991-05-01), Truckai

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