Method for retaining a vascular stent on a catheter
First Claim
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1. A mold for mounting a stent on a balloon catheter, comprising:
- a mold having a first half and a mating second half and having a longitudinal bore having a constant bore diameter the length of the mold;
the mold having a wall thickness in the range from 0.25 mm (0.00984 inch) to 0.50 mm (0.01969 inch); and
the mold being formed from a first material and a second material, the second material being substantially less heat conducting than the first material.
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Abstract
A method of securely mounting a stent on a balloon of a catheter. The method generally includes crimping a stent on a balloon of a catheter at least one time, and positioning the balloon with the stent thereon within a polished bore of a mold formed at least in part of a metallic material. The balloon is pressurized and heated within the mold, or within a sheath, in two stages as the stent is restrained from radially expanding. The method may include crimping the stent onto the balloon one or two times during processing. The method increases retention of the stent on the balloon catheter following sterilization.
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Citations
21 Claims
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1. A mold for mounting a stent on a balloon catheter, comprising:
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a mold having a first half and a mating second half and having a longitudinal bore having a constant bore diameter the length of the mold; the mold having a wall thickness in the range from 0.25 mm (0.00984 inch) to 0.50 mm (0.01969 inch); and the mold being formed from a first material and a second material, the second material being substantially less heat conducting than the first material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A mold for mounting a stent on a balloon catheter, comprising:
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a mold having a first half and a second half and having a longitudinal bore having a constant bore diameter the length of the mold; the mold having a wall thickness in the range from 0.25 mm (0.00984 inch) to 0.50 mm (0.01969 inch); and the longitudinal bore being formed from a first material and a second material, the second material being substantially less heat conducting than the first material. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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Specification