Patent US6264671B1 successfully refreshed from Google Patents.
US6264671B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stent delivery catheter and method of use
Assignee: Abbott Cardiovascular Systems Inc
•
Filing: 1999-11-15
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Granted: 2001-07-24
•
Expires: 2019-11-15
Abstract
Abstract A deformable sheath is attached to a catheter and introduced intravascularly to be expanded against an arterial wall and entrap plaque therebetween. A stent is subsequently deployed within the expanded sheath and the sheath is then withdrawn from within the vasculature to leave the stent expanded against the arterial wall with the plaque entrapped therebetween.
Inventors
- 👤 Richard S. Stack
- 👤 Udayan Patel
- 👤 William J. Boyle
- 👤 Kent C. B. Stalker
- 👤 Paul F. Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:18
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61F2/962; A61F2/966; A61F2/958
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
101 words
An assembly for trapping arterial plaque against a vascular wall, comprising: a radially outwardly deformable, tubular sheath having a proximal end and an open distal end, said sheath to be introduced intravascularly and said distal end expanded against the vascular wall to trap the plaque therebetween, a delivery catheter disposed within the tubular sheath for deploying a self-expanding intravascular device against the vascular wall; a flexible elongated tubular member with an inner lumen extending therethrough from a proximal end of the tubular member to a distal end of the tubular member that is attached to the proximal end of the sheath.
Claim 2
Dependent Claim
101 words
An assembly for trapping arterial plaque against a vascular wall, comprising: a radially outwardly deformable, tubular sheath having a proximal end and an open distal end, said sheath to be introduced intravascularly and said distal end expanded against the vascular wall to trap the plaque therebetween, a delivery catheter disposed within the tubular sheath for deploying a self-expanding intravascular device against the vascular wall; a flexible elongated tubular member with an inner lumen extending therethrough from a proximal end of the tubular member to a distal end of the tubular member that is attached to the proximal end of the sheath.
Claim 3
Dependent Claim
40 words
The assembly of claim 1 , further comprising: a radially outwardly deformable, tubular member disposed within the sheath between the distal end and the proximal end of the sheath to be expanded together with the sheath against the vascular wall.
Claim 4
Dependent Claim
52 words
The assembly of claim 2 , further comprising: a flexible, elongated tubular member having an inner lumen extending therethrough from a proximal end of the tubular member to a distal end of the tubular member attached to the proximal end of the sheath to introduce the sheath with the deformable member intravascularly.
Claim 5
Dependent Claim
13 words
The assembly of claim 3 , wherein the tubular member is a catheter.
Claim 6
Dependent Claim
20 words
The assembly of claim 4 , wherein the sheath is an integral part of the distal end of the catheter.
Claim 7
Dependent Claim
33 words
The assembly of claim 3 , wherein the tubular member has perforations formed near the distal end to allow fluid communication therethrough between the outside of the tubular member and the inner lumen.
Claim 8
Dependent Claim
43 words
The assembly of claim 3 , further comprising: a catheter disposed within the lumen of the tubular member with a balloon portion of the catheter lying within the deformable member to expand the deformable member together with the sheath against the vascular wall.
Claim 9
Dependent Claim
21 words
The assembly of claim 3 , further comprising: an outer sheath disposed over the tubular member to receive the sheath therein.
Claim 10
Dependent Claim
51 words
The assembly of claim 2 , wherein the deformable member is formed from a shape memory alloy having a compressed state for placing within the unexpanded sheath and an expanded state for anchoring the sheath against the vascular wall, and exhibiting a radially outward expansive force when in the compressed state.
Claim 11
Dependent Claim
26 words
The assembly of claim 9 , wherein the resistance to elastic deformation of the sheath is greater than the expansive force exhibited by the deformable member.
Claim 12
Dependent Claim
32 words
The assembly of claim 10 , wherein the resistance to elastic deformation of the sheath is between 1 percent to 5 percent greater than the expansive force exhibited by the deformable member.
Claim 13
Dependent Claim
15 words
The assembly of claim 2 , wherein the deformable member is embedded within the sheath.
Claim 14
Dependent Claim
14 words
The assembly of claim 12 , wherein the deformable member is a wire coil.
Claim 15
Dependent Claim
13 words
The assembly of claim 12 , wherein the deformable member is a stent.
Claim 16
Dependent Claim
21 words
The assembly of claim 2 , wherein the sheath material has a yield strength of between 50 psi and 300 psi.
Claim 17
Dependent Claim
20 words
The assembly of claim 15 , wherein the sheath material has a break point tensile strength of over 2000 psi.
Claim 18
Dependent Claim
26 words
The assembly of claim 2 , wherein the deformable member is comprised of a material selected from the group of materials consisting of metals and thermoplastics.
Claim 19
Dependent Claim
14 words
The assembly of claim 2 , wherein the deformable member is a wire mesh.
Claim 20
Dependent Claim
13 words
The assembly of claim 2 , wherein the deformable member is a stent.
Claim 21
Dependent Claim
14 words
The assembly of claim 2 , wherein the deformable member is a wire coil.
Claim 22
Dependent Claim
27 words
The assembly of claim 2 , wherein the sheath is comprised of a material selected from the group of materials consisting of polymers, cross-linked materials, and composites.
Claim 23
Dependent Claim
16 words
The assembly of claim 2 , wherein the deformable member is formed from a radiopaque material.
Claim 24
Dependent Claim
27 words
The assembly of claim 1 , wherein the sheath is comprised of a material selected from the group of materials consisting of polymers, cross-linked materials, and composites.
Claim 25
Dependent Claim
21 words
The assembly of claim 23 , wherein the sheath material has a yield strength of between 50 psi and 300 psi.
Claim 26
Dependent Claim
20 words
The assembly of claim 24 , wherein the sheath material has a break point tensile strength of over 2000 psi.
Claim 27
Dependent Claim
13 words
The assembly of claim 1 , wherein the tubular member is a catheter.
Claim 28
Dependent Claim
20 words
The assembly of claim 26 , wherein the sheath is an integral part of the distal end of the catheter.
Claim 29
Dependent Claim
36 words
The assembly of claim 1 , wherein the tubular member has a plurality of perforations formed near the distal end to allow fluid communication therethrough between the outside of the tubular member and the inner lumen.
Claim 30
Dependent Claim
133 words
An assembly for trapping arterial plaque against a vascular wall, comprising: a deployment catheter having a proximal end, a distal end, and an inner lumen extending therebetween; a radially outwardly, deformable, tubular sheath to be introduced intravascularly and expanded against the vascular wall to entrap the plaque therebetween, the sheath having a proximal end attached to the deployment catheter distal end, and a distal end; a delivery catheter being axially movably disposed within the deployment catheter lumen and having a distal end and an inner lumen; a self-expanding intravascular device disposed within the delivery catheter lumen adjacent the delivery catheter distal end; an outer sheath disposed over the deployment catheter to receive the deformable sheath therein; and a pusher rod axially movably disposed within the delivery catheter lumen proximal of the intravascular device.
Claim 31
Dependent Claim
133 words
An assembly for trapping arterial plaque against a vascular wall, comprising: a deployment catheter having a proximal end, a distal end, and an inner lumen extending therebetween; a radially outwardly, deformable, tubular sheath to be introduced intravascularly and expanded against the vascular wall to entrap the plaque therebetween, the sheath having a proximal end attached to the deployment catheter distal end, and a distal end; a delivery catheter being axially movably disposed within the deployment catheter lumen and having a distal end and an inner lumen; a self-expanding intravascular device disposed within the delivery catheter lumen adjacent the delivery catheter distal end; an outer sheath disposed over the deployment catheter to receive the deformable sheath therein; and a pusher rod axially movably disposed within the delivery catheter lumen proximal of the intravascular device.
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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 |