US6264683B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stent delivery catheter with bumpers for improved retention of balloon expandable stents
Assignee: Abbott Cardiovascular Systems Inc
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Filing: 2000-03-17
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Granted: 2001-07-24
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Expires: 2020-03-17
Abstract
Abstract An improved balloon catheter which includes bumpers located adjacent to the proximal and distal ends of the catheter balloon. The bumpers form a recessed pocket into which a stent crimped onto the catheter balloon is mounted. The recessed pocket formed by the bumpers securely retains the stent on the balloon and minimizes undesired contact between the stent and arterial walls and lesions during advancement of the stent within a patient's vasculature.
Inventors
- 👤 Richard S. Stack
- 👤 Denise Ching
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:10
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61F2/958
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
107 words
A catheter for the delivery of a stent comprising: an elongated catheter shaft having a proximal end and a distal end, with an inflation lumen extending therebetween; a first bumper and a second bumper positioned adjacent to the distal end of the catheter, each bumper being secured to the catheter shaft and having an outer surface; and an expandable member attached to the outer surface of the first bumper and second bumper, the expandable member being in fluid communication with the inflation lumen, wherein the area between the first bumper and second bumper form a pocket for receipt of a stent when the expandable member is uninflated.
Claim 2
Dependent Claim
107 words
A catheter for the delivery of a stent comprising: an elongated catheter shaft having a proximal end and a distal end, with an inflation lumen extending therebetween; a first bumper and a second bumper positioned adjacent to the distal end of the catheter, each bumper being secured to the catheter shaft and having an outer surface; and an expandable member attached to the outer surface of the first bumper and second bumper, the expandable member being in fluid communication with the inflation lumen, wherein the area between the first bumper and second bumper form a pocket for receipt of a stent when the expandable member is uninflated.
Claim 3
Dependent Claim
17 words
The delivery catheter of claim 1 , wherein the bumpers are made from a soft, pliable material.
Claim 4
Dependent Claim
16 words
The delivery catheter of claim 1 , wherein the bumpers are made from an elastomeric material.
Claim 5
Dependent Claim
13 words
The delivery catheter of claim 3 , wherein the elastomeric material is polyurethane.
Claim 6
Dependent Claim
13 words
The delivery catheter of claim 3 , wherein the elastomeric material is polyamide.
Claim 7
Dependent Claim
32 words
The delivery catheter of claim 1 , wherein the first and second bumpers have an outside diameter which is greater than the outside diameter of a stent crimped over the expandable member.
Claim 8
Dependent Claim
57 words
The delivery catheter of claim 1 , wherein the expandable member has a sleeve-like shape with a first end and a second end, the first end of the expandable member being attached to the outer surface of the first bumper and the second end of the expandable member being attached to outer surface of the second bumper.
References Cited (Backward Citations)
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Cited
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US6106530A
Cited
US5810871A
Cited
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Cited
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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) | 2004-07-23 | 2005-01-22 | 2005-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-07-23 | 2009-01-22 | 2009-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-07-23 | 2013-01-22 | 2013-07-24 | $7700.00 | Window Closed / Lapsed |