Catheter tubing of controlled in vivo softening

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

A - Human Necessities

61

L

128/127, 18/49

A61L 29/00 (2006.01) A61L 29/08 (2006.01) A61L 29/14 (2006.01) A61M 25/00 (2006.01)

Patent

CA 2031805

P-1627 CATHETER TUBING OF CONTROLLED IN VIVO SOFTENING ABSTRACT OF THE INVENTION 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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