US6645238B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skids stent delivery system
Assignee: Boston Scientific Scimed Inc
•
Filing: 2001-07-09
•
Granted: 2003-11-11
•
Expires: 2021-07-09
Abstract
Abstract A medical device delivery catheter comprises an inner member and a retractable sheath assembly disposed about the inner member. The retractable sheath assembly comprises a retractable sheath and one or more skids extending from the retractable sheath. The skids are disposed between the retractable sheath and the inner member.
Inventors
- 👤 Scott R. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:21
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61F2/962; A61F2/966
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
105 words
A medical device delivery catheter comprising an inner member and a retractable sheath assembly disposed about the inner member, the retractable sheath assembly comprising a retractable sheath and plurality of skids extending from the retractable sheath, the skids disposed between the retractable sheath and the inner member, the skids comprising an outer layer of a first skid material and an inner layer of a second skid material different from the first material, the inner layer facing the inner member, wherein the skids have a proximal end and a distal end, the skids being connected to a collar, wherein the skids extend longitudinally from the collar.
Claim 2
Dependent Claim
105 words
A medical device delivery catheter comprising an inner member and a retractable sheath assembly disposed about the inner member, the retractable sheath assembly comprising a retractable sheath and plurality of skids extending from the retractable sheath, the skids disposed between the retractable sheath and the inner member, the skids comprising an outer layer of a first skid material and an inner layer of a second skid material different from the first material, the inner layer facing the inner member, wherein the skids have a proximal end and a distal end, the skids being connected to a collar, wherein the skids extend longitudinally from the collar.
Claim 3
Dependent Claim
25 words
The medical device delivery catheter of claim 1 further comprising a stent disposed about the inner member, the retractable sheath assembly disposed about the stent.
Claim 4
Dependent Claim
43 words
The medical device delivery catheter of claim 2 wherein the retractable sheath assembly is constructed and arranged such that the skids are disposed between the retractable sheath and the inner member prior to, during and subsequent to retraction of the retractable sheath assembly.
Claim 5
Dependent Claim
19 words
The medical device delivery catheter of claim 3 wherein the first skid material is harder than the second material.
Claim 6
Dependent Claim
26 words
The medical device delivery catheter of claim 3 wherein the second skid material has a lower coefficient of friction on steel than the first skid material.
Claim 7
Dependent Claim
33 words
The medical device delivery catheter of claim 3 wherein the first skid material is harder than the second skid material and the second skid material is more slippery than the first skid material.
Claim 8
Dependent Claim
22 words
The medical device delivery catheter of claim 3 wherein the first skid material is polyimide and the second skid material is PTFE.
Claim 9
Dependent Claim
22 words
The medical device delivery catheter of claim 3 , wherein skids which are adjacent to one another are spaced from one another.
Claim 10
Dependent Claim
22 words
The medical device delivery catheter of claim 1 , the retractable sheath assembly having a bending flexibility of at least 1.17 GPa.
Claim 11
Dependent Claim
21 words
The medical device delivery catheter of claim 9 the first skid material having a shore D hardness of at least 84.
Claim 12
Dependent Claim
16 words
The medical device delivery catheter of claim 10 wherein the sheath is attached to the skids.
Claim 13
Dependent Claim
25 words
The medical device delivery catheter of claim 11 further comprising a stent disposed about the inner member, the retractable sheath assembly disposed about the stent.
Claim 14
Dependent Claim
13 words
The medical device delivery catheter of claim 12 wherein the stent is self-expanding.
Claim 15
Dependent Claim
18 words
The medical device delivery catheter of claim 1 , wherein the collar is connected to the retractable sheath.
Claim 16
Dependent Claim
17 words
The medical device delivery catheter of claim 14 , wherein the skids spiral about the inner member.
Claim 17
Dependent Claim
86 words
A medical device delivery catheter comprising an inner member and a retractable sheath assembly, the retractable sheath assembly having a thickness of no more than 0.002 inches, wherein the retractable sheath assembly comprises a retractable sheath and one or more skids attached to the retractable sheath, the one or more skids disposed between the retractable sheath and the inner member, wherein the skids have a proximal end and a distal and, the skids being connected to a collar, wherein the skids extend longitudinally from the collar.
Claim 18
Dependent Claim
86 words
A medical device delivery catheter comprising an inner member and a retractable sheath assembly, the retractable sheath assembly having a thickness of no more than 0.002 inches, wherein the retractable sheath assembly comprises a retractable sheath and one or more skids attached to the retractable sheath, the one or more skids disposed between the retractable sheath and the inner member, wherein the skids have a proximal end and a distal and, the skids being connected to a collar, wherein the skids extend longitudinally from the collar.
Claim 19
Dependent Claim
25 words
The medical device delivery system of claim 16 further comprising a stent disposed about the inner member, the retractable sheath assembly disposed about the stent.
Claim 20
Dependent Claim
43 words
The medical device delivery system of claim 17 comprising a plurality of skids, each skid having an outer layer of a first skid material and an inner layer of a second skid material, the first skid material harder than the second skid material.
Claim 21
Dependent Claim
21 words
The medical device delivery system of claim 18 wherein the second skid material is more slippery than the first skid material.
Claim 22
Dependent Claim
13 words
The medical device delivery system of claim 16 comprising a plurality of skids.
Claim 23
Dependent Claim
18 words
The medical device delivery catheter of claim 16 , wherein the collar is connected to the retractable sheath.
Claim 24
Dependent Claim
17 words
The medical device delivery catheter of claim 21 , wherein the skids spiral about the inner member.
References Cited (Backward Citations)
US5702364A
Cited
US5693034A
Cited
US5683451A
Cited
US5951585A
Cited
EP0812579A1
Cited
US5772669A
Cited
US5980533A
Cited
US6036697A
Cited
EP1025813A2
Cited
US6270521B1
Cited
US20010012959A1
Cited
US6478814B2
Cited
EP1064888A1
Cited
US6213995B1
Cited
US6270522B1
Cited
US20020038140A1
Cited
US20020165598A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-11-10 | 2007-05-12 | 2007-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-11-10 | 2011-05-12 | 2011-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-11-10 | 2015-05-12 | 2015-11-11 | $7700.00 | Window Closed / Lapsed |