Catheter tubing of controlled in vivo softening

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

1991-08-15

1993-07-13

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

604264, 604280, A61M 2500

Patent

active

052268993

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.

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