Controlled deployment of a medical device
First Claim
1. A prothesis delivery system comprising:
- a balloon catheter having an inflatable balloon on its exterior, said balloon being inflatable by injection of fluid through a lumen in said catheter, said balloon being initially partially constrained against inflation by a constraint, said constraint being a unitary elastomeric element which surrounds said balloon in a substantially axially nonslidable manner, said unitary elastomeric element constructed in a manner to provide different resistance to inflation pressure at locations corresponding to different portions of said balloon, to allow incremental inflation of said balloon in response to increasing inflation pressure, anda tubular prosthesis disposed on said catheter over at least a portion of said balloon and a portion of said constraint, said tubular prosthesis having a contracted condition and an expanded condition, said tubular prosthesis being initially disposed on said catheter in said contracted condition.
3 Assignments
0 Petitions
Accused Products
Abstract
A prosthesis delivery system having a balloon catheter with an inflatable balloon on its exterior. The balloon is inflatable by injection of fluid through a lumen in the catheter and the balloon is initially partially constrained against inflation by a constraint. A tubular prosthesis is disposed on the catheter over at least a portion of the balloon and a portion of the constraint. The tubular prosthesis has a contracted condition and an expanded condition. The tubular prosthesis is initially disposed on the catheter in the contracted condition. Further, a balloon catheter includes a constraint so that the balloon may be sequentially inflated for dilatation purposes such as in a valvuloplasty operation.
178 Citations
15 Claims
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1. A prothesis delivery system comprising:
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a balloon catheter having an inflatable balloon on its exterior, said balloon being inflatable by injection of fluid through a lumen in said catheter, said balloon being initially partially constrained against inflation by a constraint, said constraint being a unitary elastomeric element which surrounds said balloon in a substantially axially nonslidable manner, said unitary elastomeric element constructed in a manner to provide different resistance to inflation pressure at locations corresponding to different portions of said balloon, to allow incremental inflation of said balloon in response to increasing inflation pressure, and a tubular prosthesis disposed on said catheter over at least a portion of said balloon and a portion of said constraint, said tubular prosthesis having a contracted condition and an expanded condition, said tubular prosthesis being initially disposed on said catheter in said contracted condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A prosthesis delivery package comprising
a balloon catheter having an inflatable balloon on its exterior, said balloon being inflatable by injection of fluid through a lumen in said catheter, said balloon being initially partially radially constrained against inflation by an elastomeric band which surrounds said balloon, said elastomeric band being disposed over a significant length of said balloon and having a non-uniform thickness, such that said balloon may be progressively incrementally inflated, and a tubular prosthesis disposed on said catheter over at least a portion of said balloon and a portion of said constraint, said tubular prosthesis having a contracted condition and an expanded condition, said tubular prosthesis being initially disposed on said catheter in said contracted condition.
Specification