Guiding catheter

Details Guiding catheter Guiding catheter

1996-11-19

1999-01-19

Stright, Ronald

Surgery

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

Treating material introduced into or removed from body...

604282, 138124, 138138, A61M 2500

Patent

active

058609636

ABSTRACT:
A catheter is disclosed having a proximal shaft formed from an inner liner formed from a copolymer of polyvinylidene fluoride and hexafluoropropylene, an outer jacket formed from a blend of nylon and polyether block amide or polyether block amide alone, and a soft flexible tip affixed to the distal end of the proximal shaft formed from polyether block amide. A stem may be located between the proximal shaft and the soft flexible tip. The stem has an outer jacket formed from a proximal stem transition sleeve with a tapered distal end and a distal stem sleeve with a complementary tapered proximal end connected to the tapered distal end of the proximal stem transition sleeve. The stem transition sleeve and the stem sleeve are both formed from polyether block amide alone or a blend of polyether block amide and nylon. The outer jacket may be the same hardness as or harder than the stem transition sleeve which in turn is harder than the stem sleeve and the soft flexible tip. An intermediate wire mesh braid extends through the proximal shaft and, if desired, through the stem.

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