초록 ▼

The medical device is coated with a thin coherent bond coat of acrylics, epoxies, acetals, ethylene copolymers, vinyl 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 a

The medical device is coated with a thin coherent bond coat of acrylics, epoxies, acetals, ethylene copolymers, vinyl 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.

대표청구항 ▼

[ What is claimed is:] [1.]1. An insertable medical device comprising an abrasion resistant biocompatible surface coating applied to an inert surface of the device, the inert surface having no reactive functional groups, the surface coating comprising:(a) a coherent bond coat layer applied to the in

[ What is claimed is:] [1.]1. An insertable medical device comprising an abrasion resistant biocompatible surface coating applied to an inert surface of the device, the inert surface having no reactive functional groups, the surface coating comprising:(a) a coherent bond coat layer applied to the inert surface comprising at least one bonding polymer bonded with non-covalent bonds with the inert surface of the device without the need for penetration into the inert surface, and further comprising(b) at least one outer layer applied to the bond coat layer that adheres to the bond coat layer, the coating remaining adherent to the surface and resistant to abrasion and to removal from the device after soaking in water relative to a coating without the bond coat layer, and the coating remaining adherent when subjected to bending through a small radius.