Method for preparing a porous polyurethane vascular graft prosth

Details Method for preparing a porous polyurethane vascular graft prosth Method for preparing a porous polyurethane vascular graft prosth

1994-04-26

1995-10-31

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

264233, 26433119, 264343, B29C 6720

Patent

active

054627044

ABSTRACT:
A porous polyurethane tube suitable for use as a vascular graft prosthesis is prepared by placing solvent type polyurethane resin coated mandrel in a static coagulant consisting of water, ethanol and optionally aprotic solvent within 30 seconds immediately after the coating step, separating the tube by placing the mandrel in a swelling agent containing at least 90 percent by weight of ethanol and rinsing with a solution containing at least 80 percent by weight ethanol.

REFERENCES:
patent: 4704130 (1987-11-01), Gilding et al.

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