Controlled deployment of a medical device
First Claim
1. A medical system, comprising:
- a catheter having an inflatable balloon;
a nonelastic constraint surrounding a portion of the balloon; and
an expandable prosthesis disposed over the constraint, wherein, while surrounding the portion of the balloon, the constraint prevents the portion of the balloon from inflating.
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.
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Citations
24 Claims
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1. A medical system, comprising:
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a catheter having an inflatable balloon;
a nonelastic constraint surrounding a portion of the balloon; and
an expandable prosthesis disposed over the constraint, wherein, while surrounding the portion of the balloon, the constraint prevents the portion of the balloon from inflating. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method, comprising:
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delivering a medical system into the body, the medical system comprising a catheter having an inflatable balloon, a nonelastic constraint surrounding a portion of the balloon, and an expandable prosthesis disposed over the constraint, wherein, while surrounding the portion of the balloon, the constraint prevents the portion of the balloon from inflating; and
inflating the balloon. - View Dependent Claims (14, 15)
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16. A medical system, comprising:
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a catheter having an inflatable balloon;
first and second nonelastic constraints surrounding portions of the balloon and constraining the portion of the balloon against inflation; and
an expandable prosthesis disposed over the constraints, wherein the constraints have different resistance to inflation pressure.
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17. A medical system, comprising:
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a catheter having an inflatable balloon;
a plurality of nonelastic constraints surrounding portions of the balloon and constraining the portion of the balloon against inflation; and
an expandable prosthesis disposed over the constraints, wherein the plurality of constraints are positioned on the balloon in a predetermined sequence according to their resistance to inflation pressure.
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18. A medical system, comprising:
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a catheter having an inflatable balloon;
a plurality of constraints surrounding portions of the balloon and constraining the portion of the balloon against inflation; and
an expandable prosthesis disposed over the constraints, wherein the plurality of constraints are positioned on the balloon progressively according to their resistance to inflation pressure.
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19. A medical system, comprising:
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a catheter having an inflatable balloon;
a plurality of nonelastic constraints surrounding portions of the balloon and constraining the portion of the balloon against inflation; and
an expandable prosthesis disposed over the constraints, wherein the plurality of constraints have different thickness.
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20. A medical system, comprising:
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a catheter having an inflatable balloon;
a plurality of nonelastic constraints surrounding portions of the balloon and constraining the portion of the balloon against inflation; and
an expandable prosthesis disposed over the contraints, wherein the plurality of constraints are positioned on the balloon sequentially according to thickness.
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21. A medical system, comprising:
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a catheter having an inflatable balloon;
a plurality of constraints surrounding portions of the balloon and constraining the portion of the balloon against inflation; and
an expandable prosthesis disposed over the constraints, wherein the plurality of constraints are positioned on the balloon progressively according to their thickness.
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22. A medical system, comprising:
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a catheter having an inflatable balloon;
a plurality of nonelastic constraints surrounding portions of the balloon and constraining the portion of the balloon against inflation; and
an expandable prosthesis disposed over the constraints, wherein the plurality of constraints are arranged contiguously.
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23. A medical system, comprising:
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a catheter having an inflatable balloon;
a plurality of nonelastic constraints surrounding portions of the balloon and constraining the portion of the balloon against inflation; and
an expandable prosthesis disposed over the constraint, wherein the plurality of constraints extend the full length of the balloon.
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24. A medical system, comprising:
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a catheter having an inflatable balloon;
a constraint surrounding a portion of the balloon; and
an expandable prosthesis disposed over the constraint, wherein, while surrounding the portion of the balloon, the constraint prevents the portion of the balloon from inflating, and wherein the constraint is configured to move axially during inflation of the balloon.
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Specification