US5545209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled deployment of a medical device
Assignee: Boston Scientific Scimed Inc
•
Filing: 1994-06-30
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Granted: 1996-08-13
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Expires: 2014-06-30
Abstract
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.
Inventors
- 👤 George T. Roberts
- 👤 Kathleen L. Hess
- 👤 Sepideh H. Nott
- 👤 Michael S. H. Chu
- 👤 Yem Chin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:38
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61F2/958; A61M; A61M25/00; A61M25/10; A61M2025/1043; A61M2025/1059; A61M2025/1068; A61M2025/1081; A61M2210/00; A61M2210/12; A61M2210/125; A61M25/1002
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
128 words
A prosthesis delivery system comprising: a ballon catheter extending over a length and having an inflatable balloon on its exterior, said balloon being inflatable by injection of fluid through a lumen in said catheter, and said balloon being initially partially constrained against inflation by a slidable constraint surrounding a portion of said balloon, said constraint configured such that the injection of fluid into said balloon causes said constraint to slide axially along said balloon, permitting inflation of further portions of said balloon, 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.
Claim 2
Dependent Claim
128 words
A prosthesis delivery system comprising: a ballon catheter extending over a length and having an inflatable balloon on its exterior, said balloon being inflatable by injection of fluid through a lumen in said catheter, and said balloon being initially partially constrained against inflation by a slidable constraint surrounding a portion of said balloon, said constraint configured such that the injection of fluid into said balloon causes said constraint to slide axially along said balloon, permitting inflation of further portions of said balloon, 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.
Claim 3
Dependent Claim
30 words
The prosthesis delivery system of claim 1 wherein said sheath is designed to axially slide along a length of said balloon such that said balloon may be progressively incrementally inflated.
Claim 4
Dependent Claim
35 words
The prosthesis delivery system of claim 2 wherein said slidable sheath is adapted to slide axially onto a shaft of said catheter so that said sheath may be retrieved from a patient with said shaft.
Claim 5
Dependent Claim
14 words
The prosthesis delivery system of claim 1 wherein said tubular prosthesis is a stent.
Claim 6
Dependent Claim
15 words
The system of claim 4 wherein said prosthesis is folded around said balloon and constraint.
Claim 7
Dependent Claim
13 words
The prosthesis delivery system of claim 1 wherein said balloon is substantially inelastic.
Claim 8
Dependent Claim
21 words
The prosthesis delivery system of claim 6 wherein said axially slidable sheath is formed of a low coefficient of friction polymer.
Claim 9
Dependent Claim
12 words
The prosthesis delivery system of claim 7 wherein said polymer is Teflon®.
Claim 10
Dependent Claim
21 words
The system of claim 1 wherein said balloon and said prosthesis each have a length of about 5 cm or more.
Claim 11
Dependent Claim
21 words
The system of claim 9 wherein the length of said balloon and prosthesis is in a range of about 8-12 cm.
Claim 12
Dependent Claim
13 words
The system of claim 1 wherein said prosthesis includes a clot inducing fabric.
Claim 13
Dependent Claim
18 words
The system of claim 1 wherein said catheter includes a single lumen for injection of said inflation fluid.
Claim 14
Dependent Claim
38 words
The system of claim 1 wherein said inflation lumen includes an inflation port for directing fluid into said balloon, said port located at a region corresponding to a portion of said balloon not initially constrained by said constraint.
Claim 15
Dependent Claim
163 words
A prosthesis delivery package comprising a balloon catheter having an inflatable inelastic balloon on its exterior, said balloon being inflatable by injection of fluid through a lumen in said catheter and having a length of about 8-12 cm, said balloon being initially partially radially constrained against inflation by a slidable constraint having a length less than the length of said balloon and constructed as a slidable low coefficient of friction polymeric sleeve surrounding a portion of said balloon, said constraint configured such that the injection of fluid into said balloon causes said sleeve to slide axially along said balloon, permitting progressive incremental inflation of said balloon, and a tubular prosthesis, having a length substantially corresponding to the length of said balloon, 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.
Claim 16
Dependent Claim
163 words
A prosthesis delivery package comprising a balloon catheter having an inflatable inelastic balloon on its exterior, said balloon being inflatable by injection of fluid through a lumen in said catheter and having a length of about 8-12 cm, said balloon being initially partially radially constrained against inflation by a slidable constraint having a length less than the length of said balloon and constructed as a slidable low coefficient of friction polymeric sleeve surrounding a portion of said balloon, said constraint configured such that the injection of fluid into said balloon causes said sleeve to slide axially along said balloon, permitting progressive incremental inflation of said balloon, and a tubular prosthesis, having a length substantially corresponding to the length of said balloon, 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.
Claim 17
Independent Claim
33 words
The system of any one of claims 1, 2, 3 or 4-13 wherein said constraint has a short length such that it remains entirely within the body after full inflation of said balloon.
Claim 18
Independent Claim
27 words
The system of any one of claims 1, 2, 3, or 4-13 wherein said constraint has a length that is less than the length of said balloon.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-08-13 | 2000-02-12 | 2000-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-08-13 | 2004-02-12 | 2004-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-08-13 | 2008-02-12 | 2008-08-13 | $7700.00 | Window Closed / Lapsed |