Patent US2431237A successfully refreshed from Google Patents.
Patent US5607464A successfully refreshed from Google Patents.
US5607464A
Expired / Lapsed
US
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Prosthetic vascular graft with a pleated structure
Assignee: Medtronic Inc
•
Filing: 1993-08-27
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Granted: 1997-03-04
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Expires: 2013-08-27
Abstract
Abstract A vascular graft having a pleated circumference accommodates blood pressure changes with minimal change in internal surface area. A highly compliant graft may be made from a wide variety of polymers including non-elastomeric materials.
Inventors
- 👤 Paul V. Trescony
- 👤 Michael Wolf
- 👤 Richard Molacek
- 👤 Elaine Lindell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:05
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61L; A61L27/00; A61L27/14; A61L27/50; A61L27/507; A61F2210/00; A61F2210/0076; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/005; A61M; A61M25/00; A61M25/0043
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
108 words
A method for treating an arterial blood vessel having a diseased portion comprising the steps of: (a) creating a first opening in a first portion of the blood vessel upstream of the diseased portion; (b) creating a second opening in a second portion of the blood vessel downstream of the diseased portion; (c) proving a vascular graft having a first end and a second end and a flexible, tubular wall structure with longitudinally extending pleats therebetween; and (d) compliantly securing the first and second ends of the vascular graft to the first and second openings, whereby blood flow through the vessel is provided by the pleated vascular graft.
Claim 2
Independent Claim
108 words
A method for treating an arterial blood vessel having a diseased portion comprising the steps of: (a) creating a first opening in a first portion of the blood vessel upstream of the diseased portion; (b) creating a second opening in a second portion of the blood vessel downstream of the diseased portion; (c) proving a vascular graft having a first end and a second end and a flexible, tubular wall structure with longitudinally extending pleats therebetween; and (d) compliantly securing the first and second ends of the vascular graft to the first and second openings, whereby blood flow through the vessel is provided by the pleated vascular graft.
Claim 3
Dependent Claim
15 words
The method of claim 1 wherein the tubular wall structure has at least 8 pleats.
Claim 4
Dependent Claim
18 words
The method of claim 1 wherein the tubular wall structure has an expansion factor of at least 25%.
Claim 5
Dependent Claim
38 words
The method of claim 1 wherein the vascular graft is made from a biocompatible polymer material selected from the group consisting of silicone polymers, polytetrafluoroethylene, polyesters, polystyrene, polyurethanes, styrene-olefin copolymers, styrene block copolymers, polyethylene, polypropylene and blends thereof.
Claim 6
Dependent Claim
17 words
The method of claim 1 wherein the vascular graft is secured to the blood vessel by suturing.
Claim 7
Dependent Claim
13 words
The method of claim 1 wherein the vascular graft bypasses the diseased portion.
Claim 8
Dependent Claim
13 words
The method of claim 1 wherein the vascular graft replaces the diseased portion.
Claim 9
Independent Claim
134 words
A method for treating an arterial blood vessel having a diseased portion by the use of a vascular graft with a diameter of less than about 6 mm, the method comprising the steps of: (a) creating a first opening in a first portion of the blood vessel upstream of the diseased portion; (b) creating a second opening in a second portion of the blood vessel downstream of the diseased portion; (c) providing a vascular graft having a first end and a second end and a flexible, tubular wall structure with longitudinally extending pleats therebetween, said graft having a diameter of less than about 6 mm; and (d) compliantly securing the first and second ends of the vascular graft to the first and second openings such that blood may flow through the pleated vascular graft.
Claim 10
Independent Claim
134 words
A method for treating an arterial blood vessel having a diseased portion by the use of a vascular graft with a diameter of less than about 6 mm, the method comprising the steps of: (a) creating a first opening in a first portion of the blood vessel upstream of the diseased portion; (b) creating a second opening in a second portion of the blood vessel downstream of the diseased portion; (c) providing a vascular graft having a first end and a second end and a flexible, tubular wall structure with longitudinally extending pleats therebetween, said graft having a diameter of less than about 6 mm; and (d) compliantly securing the first and second ends of the vascular graft to the first and second openings such that blood may flow through the pleated vascular graft.
Claim 11
Dependent Claim
15 words
The method of claim 8 wherein the tubular wall structure has at least 8 pleats.
Claim 12
Dependent Claim
18 words
The method of claim 8 wherein the tubular wall structure has an expansion factor of at least 25%.
Claim 13
Dependent Claim
38 words
The method of claim 8 wherein the vascular graft is made from a biocompatible polymer material selected from the group consisting of silicone polymers, polytetrafluoroethylene, polyesters, polystyrene, polyurethanes, styrene-olefin copolymers, styrene block copolymers, polyethylene, polypropylene and blends thereof.
Claim 14
Dependent Claim
17 words
The method of claim 8 wherein the vascular graft is secured to the blood vessel by suturing.
Claim 15
Dependent Claim
13 words
The method of claim 8 wherein the vascular graft bypasses the diseased portion.
Claim 16
Dependent Claim
13 words
The method of claim 8 wherein the vascular graft replaces the diseased portion.
References Cited (Backward Citations)
US3479670A
Cited
US3657744A
Cited
US3986288A
Cited
US4140126A
Cited
US4300244A
Cited
US4313231A
Cited
WO1983003349A1
Cited
US4834746A
Cited
US4647416A
Cited
US4550447A
Cited
GB2187463A
Cited
US4770664A
Cited
US4759757A
Cited
US4605406A
Cited
GB2199327A
Cited
US4629458A
Cited
EP0256748A2
Cited
US4941870A
Cited
US4834736A
Cited
US4892539A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-03-03 | 2000-09-02 | 2001-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-03-03 | 2004-09-02 | 2005-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-03-03 | 2008-09-02 | 2009-03-04 | $7700.00 | Window Closed / Lapsed |