Balloon catheter stent delivery system with ridges

Details Balloon catheter stent delivery system with ridges Balloon catheter stent delivery system with ridges

2002-02-15

2009-08-11

Bui, Vy Q. (Department: 3773)

Surgery

Instruments

Internal pressure applicator

C623S001110

Reexamination Certificate

active

07572270

ABSTRACT:
A balloon catheter and stent delivery system for medical treatment of a patient includes a balloon having a pattern of ridges in an initial deflated state. The ridges may cooperate with structural elements of a stent crimped onto the balloon, to increase and enhance longitudinal retention of the stent while the catheter system is advanced or withdrawn. Upon inflation, the balloon recovers to an inflated shape having a cylindrical working portion. The balloon catheter thus provides for uniform expansion of the stent when the balloon is inflated. The present invention also tends to protect the leading or distal end of the stent during advancement, and tends to protect the proximal end of the stent during any withdrawal of the catheter system.

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European Search Report dated Mar. 26, 2007 for corresponding Appln. No. EP 02 71 4922.
Supplementary European Search Report EP 02718995 dated Mar. 20, 2007.

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