Surgery – Instruments – Internal pressure applicator
Reexamination Certificate
2005-09-13
2005-09-13
Truong, Kevin T. (Department: 3731)
Surgery
Instruments
Internal pressure applicator
C623S001110
Reexamination Certificate
active
06942681
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onto the balloon, to increase and enhance longitudinal retention of the stent while the catheter system is advanced or withdrawn.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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Cordis Corporation
Montgomery Michael W.
Truong Kevin T.
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