Extrudable polyurethane for prosthetic devices

Details Extrudable polyurethane for prosthetic devices Extrudable polyurethane for prosthetic devices

C - Chemistry, Metallurgy

08

G

402/149

C08G 18/66 (2006.01) A61L 27/18 (2006.01) A61L 33/06 (2006.01) C08G 18/48 (2006.01) C08G 18/73 (2006.01) C08G 18/75 (2006.01)

Patent

CA 1197037

ABSTRACT A reaction product is formed of dicyclohexyl me- thane diisocyanate, a poly tetra methylene ether glycol having a molecular weight of 1000/2000 and 1,4 butane diol. The resulting polymer having an average molecular weight of about 120,000 units has thromboresistant properties, a long flexural life and are extrudable. The polyurethane polymer is ideal for forming transvenous cardiac pacemaker leads, blood bags, intravenous and intra-arterial catheters and tubing, and other shaped devices which must be formed of a blood compatible material.

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