Patent US6387118B1 successfully refreshed from Google Patents.
US6387118B1
Expired / Lapsed
US
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Non-crimped stent delivery system
Assignee: Boston Scientific Scimed Inc
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Filing: 2000-04-20
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Granted: 2002-05-14
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Expires: 2020-04-20
Abstract
Abstract A stent delivery system which includes a single or a pair of stent retaining sleeves having a ribbed configuration. The ribbed configuration providing the sleeves with reduced columnar strength and an improved radial strength characteristics. The sleeves of the present stent delivery system further providing a recoil action in opposite longitudinal directions when the stent is being expanded. The recoil assists in fully retracting the sleeves from the stent.
Inventors
- 👤 Scott M. Hanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:45
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61F2/958; A61F2002/9583
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
80 words
A stent delivery system comprising: a stent delivery catheter, the stent delivery catheter having a stent mounting region, the stent mounting region having an inflatable portion; a stent disposed about the stent mounting region, the stent having an unexpanded position and an expanded position; at least one stent retaining sleeve disposed about at least a portion of the stent in the unexpanded position, at least a portion of the at least one stent retaining sleeve having a contractible pleated configuration.
Claim 2
Dependent Claim
80 words
A stent delivery system comprising: a stent delivery catheter, the stent delivery catheter having a stent mounting region, the stent mounting region having an inflatable portion; a stent disposed about the stent mounting region, the stent having an unexpanded position and an expanded position; at least one stent retaining sleeve disposed about at least a portion of the stent in the unexpanded position, at least a portion of the at least one stent retaining sleeve having a contractible pleated configuration.
Claim 3
Dependent Claim
86 words
The stent delivery system of claim 1 wherein the stent further comprises a pair of ends, the at least one stent retaining sleeve having a stent retaining portion and a catheter portion, the stent retaining portion of the at least one stent retaining sleeve disposed about at least an end of the stent in the unexpanded position, the catheter portion of the at least one stent retaining sleeve disposed about a portion of the stent delivery catheter substantially adjacent to the respective end of the stent.
Claim 4
Dependent Claim
26 words
The stent delivery catheter of claim 2 wherein at least the stent retaining portion of the at least one stent retaining sleeve having a ribbed configuration.
Claim 5
Dependent Claim
42 words
The stent delivery catheter of claim 2 wherein at least the catheter portion of the at least one stent retaining sleeve having an interference fit about the portion of the stent delivery catheter substantially adjacent to the respective end of the stent.
Claim 6
Dependent Claim
27 words
The stent delivery device of claim 1 wherein the ribbed configuration is defined by a plurality of alternating raised and lowered pleats placed at least one sleeve.
Claim 7
Dependent Claim
29 words
The stent delivery system of claim 1 where in the at least one stent retaining sleeve further comprises a proximal stent retaining sleeve and a distal stent retaining sleeve.
Claim 8
Dependent Claim
33 words
The stent delivery system of claim 6 wherein the ribbed configuration of the proximal and distal sleeves provides each sleeve with a tension force in the opposite longitudinal direction of the other sleeve.
Claim 9
Dependent Claim
31 words
The stent delivery system of claim 7 wherein the tension force of each sleeve acts as a recoil action when the stent is expanded from the unexpanded to the expanded state.
Claim 10
Dependent Claim
30 words
The stent delivery system of claim 8 wherein the recoil action is defined as a retraction of the sleeves off of a respective end of the stent during stent expansion.
Claim 11
Dependent Claim
15 words
The stent delivery system of claim 9 wherein the retraction of each sleeve occurs simultaneously.
Claim 12
Dependent Claim
37 words
The stent delivery device of claim 1 wherein the at least one stent retaining sleeve is constructed from at least one member of the group essentially consisting of polyurethane, elastic polymers, non-elastic polymers and any combinations thereof.
Claim 13
Dependent Claim
12 words
The stent delivery device of claim 11 wherein the polyurethane is TECHOTHANE.
Claim 14
Dependent Claim
16 words
The stent delivery device of claim 1 wherein the stent is further characterized as being pre-reduced.
Claim 15
Dependent Claim
18 words
The stent delivery device of claim 1 wherein the stent is further characterized as having not been crimped.
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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) | 2005-05-13 | 2005-11-12 | 2006-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-05-13 | 2009-11-12 | 2010-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-05-13 | 2013-11-12 | 2014-05-14 | $7700.00 | Window Closed / Lapsed |