Catheter having a variable length shaft segment and method of us

Details Catheter having a variable length shaft segment and method of us Catheter having a variable length shaft segment and method of us

1998-09-30

2000-08-08

Weiss, John G.

Surgery

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

Treating material introduced into or removed from body...

604523, 604528, 604509, 604510, A61M 2900

Patent

active

060994967

ABSTRACT:
The invention relates to a catheter device and a method of use to enable catheter exchange over a conventional length guidewire without the use of a guidewire extension or exchange wire. The catheter device includes an elongated inflation shaft having a longitudinal inflation lumen, an extension shaft having a longitudinal extension lumen coupled in fluid communication with the inflation lumen, a balloon member disposed at the distal end of the extension shaft and in fluid communication with the inflation lumen, a guidewire shaft having a longitudinal guidewire lumen which extends from the distal end of the balloon member, through the balloon member and extension shaft, to the proximal end of the extension shaft, and a variable length shaft coupled to the proximal end of the extension shaft. The variable length shaft comprises an elastomeric material which may be stretched from a relaxed state of about 10 centimeters to a fully extended state of about 140 centimeters.

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