One-step thromboresistant, lubricious coating

Details One-step thromboresistant, lubricious coating One-step thromboresistant, lubricious coating

1994-09-22

1996-09-24

Dudash, Diana

Coating processes

Medical or dental purpose product; parts; subcombinations;...

Device for creating or holding open an unnatural opening in...

427 230, 4273745, 4273983, B05D 302, A61L 2900

Patent

active

055589006

ABSTRACT:
A method of making articles having lubricious polymeric coatings are disclosed. The coatings are comprised of a substantially homogeneous composite of poly(ethylene oxide) and polyisocyanate applied in a single step operation as a mixture in an inert solvent. The coating is believed to form a polymeric complex through an in-situ hydrolysis of the polyisocyanate in the system without substantial crosslinking to form polyurethanes. The polymeric complexes have particular utility in providing medical devices such as catheters with a high degree of abrasion resistance and lubricity when in contact with bodily fluids.

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