Catheter incorporating an improved polymer shaft

Details Catheter incorporating an improved polymer shaft Catheter incorporating an improved polymer shaft

A - Human Necessities

61

M

A61M 25/00 (2006.01)

Patent

CA 2552138

A catheter shaft and methods of making and using the same. The catheter shaft may include a proximal portion having about 80 to about 95 weight % polyoxymethylene and about 5 to about 20 weight % polyether polyester, an intermediate portion having about 20 to about 50 weight % polyoxymethylene and about 50 to about 80 weight % polyether polyester, and a distal portion having about 5 to about 20 weight % polyoxymethylene and about 80 to about 95 weight % polyether polyester. The intermediate portion is disposed between the proximal portion and the distal portion.

L'invention porte sur une tige polymère et ses procédés de fabrication, ainsi que sur sa méthode d'utilisation. La tige de cathéter comprend une partie proximale constituée d'environ 80 à 95 % de polyoxyméthylène et d'environ 5 à 20 % en poids de polyester de polyéther, une partie intermédiaire constituée d'environ 20 à 50 % en poids de polyoxyméthylène et d'environ 50 à 80 % en poids de polyester de polyéther, et une partie distale constituée d'environ 5 à 20 % en poids de polyoxyméthylène et d'environ 80 à 95 % en poids de polyester de polyéther. La partie intermédiaire est placée entre la partie proximale et la partie distale.

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