Thermoplastic elastomer hydrophilic polyetherurethane...

Details Thermoplastic elastomer hydrophilic polyetherurethane... Thermoplastic elastomer hydrophilic polyetherurethane...

A - Human Necessities

61

L

128/127, 402/152

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

Patent

CA 2017951

A melt extruded catheter of thermoplastic elastomeric hydrophilic polyurethane synthesized from a diisocyanate, polyethyleneoxide glycol of high molecular weight and a chain extender expands to a larger lumen size when contacted with an aqueous liquid. The catheter may include an antithrombogenic agent, antiinfective agent and radiopaque agent. The hydrophilic polyurethane may be synthesized by one-shot bulk polymerization, and may be melt extruded into the catheter tubing.

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