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Patent US5961548A successfully refreshed from Google Patents.
US5961548A
Expired / Lapsed
US
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Bifurcated two-part graft and methods of implantation
Assignee: W.L. Gore and Associates Inc
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Filing: 1997-11-18
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Granted: 1999-10-05
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Expires: 2017-11-18
Abstract
Abstract A bifurcated graft comprising two sections is provided that is implanted in two consecutive steps in a bifurcated body lumen. A first section of the graft comprises a main portion having a joining region and a first leg extending from the main portion adjacent to the joining region. The main portion of the graft is implanted in the body lumen upstream of the bifurcation, while the first leg extends into a first branch of the body lumen. A second section of the graft, which is implanted in a separate step, comprises second a leg that extends into the second branch of the body lumen and a proximal portion that interconnects with the joining region of the first section.
Inventors
- 👤 Ascher Shmulewitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:46
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/82; A61F2/86; A61F2/88; A61F2/89; A61F2/95; A61F2/954; A61F2002/065; A61F2002/075; A61F2002/821
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
99 words
Apparatus for reinforcing a bifurcated lumen having a trunk and a bifurcation forming first and second branches, the apparatus comprising: a first section, configured to be positioned within the trunk and first branch of the bifurcated lumen, comprising: a main portion configured to fit within the trunk upstream of the bifurcation; a first leg configured to extend into the first branch when the first section is positioned in the trunk, and a joining region disposed adjacent to the first leg, the joining region configured to align with the second branch when the first section is positioned in the trunk.
Claim 2
Dependent Claim
99 words
Apparatus for reinforcing a bifurcated lumen having a trunk and a bifurcation forming first and second branches, the apparatus comprising: a first section, configured to be positioned within the trunk and first branch of the bifurcated lumen, comprising: a main portion configured to fit within the trunk upstream of the bifurcation; a first leg configured to extend into the first branch when the first section is positioned in the trunk, and a joining region disposed adjacent to the first leg, the joining region configured to align with the second branch when the first section is positioned in the trunk.
Claim 3
Dependent Claim
39 words
The apparatus as defined in claim 1, further comprising a second section configured to be positioned separately within the second branch and interconnected to the joining region of the first section, the second section extending into the second branch.
Claim 4
Dependent Claim
21 words
The apparatus as defined in claim 2, wherein the first section and the second section form an inverted Y-shape when joined.
Claim 5
Dependent Claim
21 words
The apparatus as defined in claim 3, wherein the first and second sections each comprise graft material attached to a support.
Claim 6
Dependent Claim
17 words
The apparatus as defined in claim 4, wherein the support comprises a compressible and expandable helical coil.
Claim 7
Dependent Claim
15 words
The apparatus as defined in claim 5, wherein the helical coil comprises a shape-memory material.
Claim 8
Dependent Claim
22 words
The apparatus as defined in claim 4, wherein the graft material is selected from the group consisting of polyester fiber and PTFE.
Claim 9
Dependent Claim
15 words
The apparatus as defined in claim 4 wherein the support comprises a self-expanding helical coil.
Claim 10
Dependent Claim
22 words
The apparatus as defined in claim 1 wherein the first section comprises a first helical coil connected to a second helical coil.
Claim 11
Dependent Claim
36 words
The apparatus as defined in claim 9, wherein the first coil has a first longitudinal axis and the second coil has a second longitudinal axis, the first longitudinal axis spaced apart from the second longitudinal axis.
Claim 12
Dependent Claim
22 words
The apparatus as defined in claim 10 wherein the first longitudinal axis is inclined at an angle to the second longitudinal axis.
Claim 13
Dependent Claim
21 words
The apparatus as defined in claim 1 wherein the joining region comprises a weakened or perforated region of the graft material.
Claim 14
Dependent Claim
16 words
The apparatus as defined in claim 1 wherein the joining section further comprises a retention collar.
Claim 15
Dependent Claim
15 words
The apparatus as defined in claim 13 wherein the retention collar comprises an elastomeric band.
Claim 16
Dependent Claim
97 words
Apparatus for reinforcing a bifurcated lumen having a trunk and a bifurcation forming first and second branches, the apparatus comprising: a first section having a main portion configured to fit within the trunk upstream of the bifurcation, a first leg configured to extend into the first branch when the first section is positioned in the trunk, and a joining region disposed adjacent to the first leg; and a second section configured to be positioned separately within the second branch and interconnected to the joining region of the first section, the second section extending into the second branch.
Claim 17
Dependent Claim
97 words
Apparatus for reinforcing a bifurcated lumen having a trunk and a bifurcation forming first and second branches, the apparatus comprising: a first section having a main portion configured to fit within the trunk upstream of the bifurcation, a first leg configured to extend into the first branch when the first section is positioned in the trunk, and a joining region disposed adjacent to the first leg; and a second section configured to be positioned separately within the second branch and interconnected to the joining region of the first section, the second section extending into the second branch.
Claim 18
Dependent Claim
23 words
The apparatus as defined in claim 15, wherein the first and second sections each comprise graft material attached to a helical coil support.
Claim 19
Dependent Claim
31 words
The apparatus as defined in claim 16, wherein the helical coil supports comprise a shape-memory material and the graft material is selected from the group consisting of polyester fiber and PTFE.
References Cited (Backward Citations)
US4553545A
Cited
US4503569A
Cited
US4562596A
Cited
US4577631A
Cited
US4820298A
Cited
US5443500A
Cited
US5246445A
Cited
US5387235A
Cited
US5833669A
Cited
US5609627A
Cited
US5575817A
Cited
US5653743A
Cited
US5709713A
Cited
US5755772A
Cited
US5843160A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-10-04 | 2003-04-05 | 2003-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-10-04 | 2007-04-05 | 2007-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-10-04 | 2011-04-05 | 2011-10-05 | $7700.00 | Window Closed / Lapsed |