Radiopaque polymer coating

Details Radiopaque polymer coating Radiopaque polymer coating

A - Human Necessities

61

L

A61L 29/18 (2006.01) A61L 27/18 (2006.01) A61L 27/34 (2006.01) A61L 29/06 (2006.01) A61L 29/08 (2006.01) A61L 31/06 (2006.01) A61L 31/10 (2006.01) C08G 18/38 (2006.01) C08J 7/04 (2006.01)

Patent

CA 2292183

An apparatus and method to produce radiopaque medical implants such as catheters, stents, or other implants. A composition of a radiopaque brominated polyurethane coat and a polyurethane tubing core is formed. In one embodiment, the polyurethane coat includes a diisocyanate and a brominated diol having a bromine concentration of 30% or more. The coat is applied to the elastomeric polyurethane tubing core surface. The medical implant takes advantage of employing a brominated radiopaque polyurethane with the tensile properties, for example of flexibility and kink resistance, of the elastomeric thermoplastic polyurethane tubing core without degrading these desirable characteristics.

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