US6214036B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stent which is easily recaptured and repositioned within the body
Assignee: Cordis US Corp
•
Filing: 1998-11-09
•
Granted: 2001-04-10
•
Expires: 2018-11-09
Abstract
Abstract In accordance with the present invention there is provided a pre-cursor stent for positioning within the infrarenal neck, between an abdominal aortic aneurysm and the renal arteries of a patient to assist in repairing the abdominal aortic aneurysm. The stent is designed to be coupled to a graft for directing blood flow through the aneurysm. The stent is made from a substantially cylindrical self-expanding member having a proximal end, a distal end, a longitudinal axis extending therebetween and an interior. The precursor stent further includes at least two spaced apart longitudinal legs having distal and proximal ends, the proximal ends of the legs attached to the distal end of the member, the legs extending distally from the member, each the leg including a flange adjacent its distal end. Also in accordance with the present invention is an aortic graft, having the above mentioned precursor stent attached thereto when fully deployed. Further in accordance with the present invention is a delivery apparatus for the above described precursor stent.
Inventors
- 👤 Robert P. Letendre
- 👤 Kenneth S. Solovay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:47
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/95; A61F2/82; A61F2/86; A61F2/89; A61F2/90; A61F2/91; A61F2002/075; A61F2/848; A61F2002/8486; A61F2002/9505; A61F2002/9534; A61F2/962; A61F2/966; A61F2002/9665
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
156 words
A delivery apparatus for a self-expanding stent, said apparatus comprsng: a) an outer sheath, comprising an elongated tubular member having distal and proximal ends; b) an inner Shaft located coaxially within said outer sheath, said shaft having a distal end and a proximal end, said distal end of said shaft further including at least two grooves disposed to; and c) a substantially cylindrical self-expanding stent located within said sheath, said self-expanding stent having a proximal end, a distal end, a longitudinal axis extending therebetween and an interior, said self-expanding stent further including at least two spaced apart longitudinal legs having distal and proximal ends, said distal ends of said legs attached to said proximal end of said member, said legs extending proximally away from said member, each said leg including a flange adjacent its proximal end, said flanges are set within said grooves of said inner shaft, they releasable attaching said stent to said inner shaft.
Claim 2
Dependent Claim
156 words
A delivery apparatus for a self-expanding stent, said apparatus comprsng: a) an outer sheath, comprising an elongated tubular member having distal and proximal ends; b) an inner Shaft located coaxially within said outer sheath, said shaft having a distal end and a proximal end, said distal end of said shaft further including at least two grooves disposed to; and c) a substantially cylindrical self-expanding stent located within said sheath, said self-expanding stent having a proximal end, a distal end, a longitudinal axis extending therebetween and an interior, said self-expanding stent further including at least two spaced apart longitudinal legs having distal and proximal ends, said distal ends of said legs attached to said proximal end of said member, said legs extending proximally away from said member, each said leg including a flange adjacent its proximal end, said flanges are set within said grooves of said inner shaft, they releasable attaching said stent to said inner shaft.
Claim 3
Dependent Claim
44 words
The apparatus according to claim 1 wherein said stent further includes a gasket member which is substantially impervious to blood flow, said gasket member is attached to said self-expending stent such that it will impede blood flow through said interior of said expandable member.
Claim 4
Dependent Claim
17 words
The apparatus according to claim 1 , wherein said stent is made from a superelastic Nickel-Titanium alloy.
Claim 5
Dependent Claim
15 words
The apparatus according to claim 1 , wherein said flanges and said grooves are T-shaped.
Claim 6
Dependent Claim
28 words
The apparatus according to claim 1 wherein said flanges fit completely within said grooves so that said stent adds no additional outside diameter size to said inner shaft.
Claim 7
Dependent Claim
25 words
The apparatus according to claim 1 wherein said legs extend distally and axially from said member when said precursor stent is deployed within a body.
Claim 8
Dependent Claim
14 words
The apparatus according to claim 1 wherein said flanges and said grooves are I-shaped.
Claim 9
Dependent Claim
22 words
The precursor stent according to claim 1 wherein said longitudinal legs are equally spaced about said proximal end of said expandable member.
Claim 10
Dependent Claim
17 words
The precursor stent according to claim 1 wherein said flanges on said longitudinal legs are substantially I-shaped.
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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) | 2004-04-09 | 2004-10-09 | 2005-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-04-09 | 2008-10-09 | 2009-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-04-09 | 2012-10-09 | 2013-04-10 | $7700.00 | Window Closed / Lapsed |