Bonding layers for medical device surface coatings

Details Bonding layers for medical device surface coatings Bonding layers for medical device surface coatings

1997-01-27

1999-12-07

Dudash, Diana

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

424422, 424475, 424482, 604 12, 623901, 427 23, A61M 2500, A61M 532, A61K 932

Patent

active

059975172

ABSTRACT:
A medical device is coated with a thin coherent bond coat of acrylics, epoxies, acetals, ethylene copolymers, vinyl polymers, polymers containing hydroxyl, amine, carboxyl, amide, or other reactive groups, and copolymers thereof. Outer layers may be applied and remain adherent to the substrate in water for an extended period. The bond coat may comprise cross linkers such as urea resins, melamines, isocyanates, and phenolics. Preferred polymers include vinylpyrrolidone-vinyl acetate, styrene acrylic polymer, ethylene acrylic acid copolymer, carboxyl function acrylic polymer, hydroxyl function acrylic polymer, and acrylic dispersion polymer. The coatings may be applied to inert metal or plastic surfaces of medical devices such as needles, guide wires, catheters, surgical instruments, equipment for endoscopy, wires, stents, angioplasty balloons, wound drains, arteriovenous shunts, gastroenteric tubes, urethral inserts, laparoscopic equipment, pellets, and implants. Methods of coating and coating liquids are provided.

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