Patent US6663667B2 successfully refreshed from Google Patents.
US6663667B2
Expired / Lapsed
US
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Towel graft means for enhancing tissue ingrowth in vascular grafts
Assignee: Edwards Lifesciences Corp
•
Filing: 2001-10-31
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Granted: 2003-12-16
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Expires: 2021-10-31
Abstract
Abstract A woven vascular graft having a texturized outer surface to promote tissue ingrowth into the graft. The outer surface of the graft is equipped with a plurality of threads that are woven into, and extend from, the outer surface. The threads may be arranged in rows, lines or a geometric pattern. Alternatively, the threads may be towel-like. Such towel-like threads may be arranged in the form of a cuff at each end of the graft, or may cover larger portions of the exterior of the graft. The graft may be equipped with only one texture, or with a plurality of different textures.
Inventors
- 👤 Mark Dehdashtian
- 👤 Jens Allenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:04
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/064; A61F2/82; A61F2/848; A61F2/86; A61F2/89; A61F2002/065; A61F2002/067; A61F2002/075; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0013
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
75 words
A vascular graft adapted for placement in a primary blood vessel, comprising: a woven tubular structure defining an outer surface characterized by a plurality of thread portions extending from and lying along the exterior of the woven tubular structure, the outer surface being sized to contact and support the blood vessel, wherein the thread portions are selected to increase tissue ingrowth, and further wherein the plurality of thread portions define first and second texture portions.
Claim 2
Dependent Claim
75 words
A vascular graft adapted for placement in a primary blood vessel, comprising: a woven tubular structure defining an outer surface characterized by a plurality of thread portions extending from and lying along the exterior of the woven tubular structure, the outer surface being sized to contact and support the blood vessel, wherein the thread portions are selected to increase tissue ingrowth, and further wherein the plurality of thread portions define first and second texture portions.
Claim 3
Dependent Claim
31 words
The vascular graft as in claim 1 , wherein the thread portions are hoop-like protrusions formed from a filament from at least about 1 cm to about 22 cm in length.
Claim 4
Dependent Claim
39 words
The vascular graft as in claim 1 , wherein the thread portions are formed from a fiber that is woven into the tubular structure with a picks per inch range of from at least about 138 to about 222.
Claim 5
Dependent Claim
38 words
The vascular graft as in claim 1 , wherein the configuration of said tubular structure is selected from the group consisting of a straight tube, an aorto-uniliac conversion graft, a bifurcated endoluminal prosthesis, and a thoracic graft device.
Claim 6
Dependent Claim
35 words
The vascular graft as in claim 1 , wherein the thread portions are selected from the group consisting of vertical thread portions, horizontal thread portions, angled thread portions, loose thread portions and taut thread portions.
Claim 7
Dependent Claim
137 words
A vascular graft adapted for placement in a primary blood vessel, comprising: a woven tubular structure defining an outer surface characterized by a first and a second surface texture and being sized to contact and support the blood vessel, the woven tubular structure having a body portion and first and second cuffs located at first and second ends of the body portion, the cuffs configured to engage the blood vessel and promote tissue ingrowth, and further wherein: the first surface texture comprises a plurality of thread portions extending generally outwardly from the first and second cuffs, in the form of outwardly extending hoops having a first height, and the second surface texture comprises a plurality of thread portions extending generally outwardly from the body portion in the form of outwardly extending hoops having a second, different height.
Claim 8
Dependent Claim
137 words
A vascular graft adapted for placement in a primary blood vessel, comprising: a woven tubular structure defining an outer surface characterized by a first and a second surface texture and being sized to contact and support the blood vessel, the woven tubular structure having a body portion and first and second cuffs located at first and second ends of the body portion, the cuffs configured to engage the blood vessel and promote tissue ingrowth, and further wherein: the first surface texture comprises a plurality of thread portions extending generally outwardly from the first and second cuffs, in the form of outwardly extending hoops having a first height, and the second surface texture comprises a plurality of thread portions extending generally outwardly from the body portion in the form of outwardly extending hoops having a second, different height.
Claim 9
Dependent Claim
29 words
The vascular graft as in claim 6 , wherein the thread portions are formed from a filament from at least about 1 cm to about 22 cm in length.
Claim 10
Dependent Claim
24 words
The vascular graft as in claim 6 , wherein the thread portions are formed from a fiber that is woven in the tubular structure.
Claim 11
Dependent Claim
21 words
The vascular graft as in claim 6 , wherein the hoops of the first surface texture form a dense pile configuration.
Claim 12
Dependent Claim
19 words
The vascular graft as in claim 6 , wherein the hoops of the second surface texture form elongated strands.
Claim 13
Dependent Claim
28 words
The vascular graft as in claim 6 , wherein the cuff extends from at least about 1 cm to about 5 cm along the length of the graft.
Claim 14
Dependent Claim
38 words
The vascular graft as in claim 6 , wherein the configuration of said tubular structure is selected from the group consisting of a straight tube, an aorto-uniliac conversion graft, a bifurcated endoluminal prosthesis, and a thoracic graft device.
Claim 15
Dependent Claim
109 words
A vascular graft adapted for placement in a primary blood vessel, comprising: an elongated woven tubular structure having a first and a second end and an outer surface which is circumferentially reinforced along its length by a plurality of separate, spaced-apart wires, each of which has a generally sinusoidal shape, wherein the outer surface of the graft is characterized by a plurality of differently shaped thread portions extending from the outer surface of the woven tubular structure, the outer surface being sized to contact and support the blood vessel and characterized by a plurality of texture portions, and further wherein the thread portions are configured to increase tissue ingrowth.
Claim 16
Dependent Claim
109 words
A vascular graft adapted for placement in a primary blood vessel, comprising: an elongated woven tubular structure having a first and a second end and an outer surface which is circumferentially reinforced along its length by a plurality of separate, spaced-apart wires, each of which has a generally sinusoidal shape, wherein the outer surface of the graft is characterized by a plurality of differently shaped thread portions extending from the outer surface of the woven tubular structure, the outer surface being sized to contact and support the blood vessel and characterized by a plurality of texture portions, and further wherein the thread portions are configured to increase tissue ingrowth.
Claim 17
Dependent Claim
20 words
The vascular graft as in claim 13 , the fibers are formed from a filament woven into the tubular structure.
Claim 18
Dependent Claim
45 words
The vascular graft as in claim 13 , wherein the plurality of thread portions define first and second texture portions, the first texture portion being characterized by a plurality of outwardly extending loop portions and located circumferentially around each end of the woven tubular structure.
Claim 19
Dependent Claim
35 words
The vascular graft as in claim 13 , wherein the thread portions are selected from the group consisting of vertical thread portions, horizontal thread portions, angled thread portions, loose thread portions and taut thread portions.
Claim 20
Independent Claim
78 words
A method of promoting tissue ingrowth into a tubular graft in a primary blood vessel, comprising: providing a woven tubular graft having a body portion and an extension portion, wherein the graft has a plurality of fibers extending along the outer surface and forming a texturized outer surface having first and second texture portions; delivering the tubular graft into an implant position; and deploying the tubular graft so that the tubular section contacts and supports the blood vessel.
Claim 21
Independent Claim
78 words
A method of promoting tissue ingrowth into a tubular graft in a primary blood vessel, comprising: providing a woven tubular graft having a body portion and an extension portion, wherein the graft has a plurality of fibers extending along the outer surface and forming a texturized outer surface having first and second texture portions; delivering the tubular graft into an implant position; and deploying the tubular graft so that the tubular section contacts and supports the blood vessel.
Claim 22
Dependent Claim
20 words
The method as in claim 17 , wherein the fibers extend into, and are incorporated with, the woven tubular graft.
Claim 23
Dependent Claim
22 words
The method as in claim 17 , wherein the fibers are formed from a filament that is woven into the tubular structure.
Claim 24
Dependent Claim
37 words
The method as in claim 17 , wherein the extension portion is characterized by a first texture and the body portion is characterized by a second, different texture extending circumferentially around a central portion of the graft.
Claim 25
Dependent Claim
22 words
The method as in claim 20 , wherein the first texture is in the form of a plurality of looped thread portions.
Claim 26
Dependent Claim
30 words
The method as in claim 20 , wherein the second texture comprises a plurality of threads extending along the outer surface and lying parallel to a length of the graft.
Claim 27
Dependent Claim
30 words
The method as in claim 20 , wherein the second texture comprises a plurality of threads extending along the outer surface and lying perpendicular to a length of the graft.
Claim 28
Independent Claim
138 words
A method of promoting tissue ingrowth into a tubular graft in a primary blood vessel, comprising: providing an elongated tubular structure having first and second ends and an outer surface sized to contact and support the blood vessel, the tubular structure being circumferentially reinforced along its length by a plurality of separate, spaced-apart wires, each of which has a generally sinusoidal shape, wherein the outer surface of the graft is characterized by a plurality of differently shaped thread portions defining loop members extending from and lying along the outer surface of the woven tubular structure and defining first and second texture portions, and further wherein the thread portions are configured to increase tissue ingrowth; delivering the tubular graft into an implant position; and deploying the tubular graft so that the tubular section contacts and supports the blood vessel.
Claim 29
Independent Claim
138 words
A method of promoting tissue ingrowth into a tubular graft in a primary blood vessel, comprising: providing an elongated tubular structure having first and second ends and an outer surface sized to contact and support the blood vessel, the tubular structure being circumferentially reinforced along its length by a plurality of separate, spaced-apart wires, each of which has a generally sinusoidal shape, wherein the outer surface of the graft is characterized by a plurality of differently shaped thread portions defining loop members extending from and lying along the outer surface of the woven tubular structure and defining first and second texture portions, and further wherein the thread portions are configured to increase tissue ingrowth; delivering the tubular graft into an implant position; and deploying the tubular graft so that the tubular section contacts and supports the blood vessel.
Claim 30
Dependent Claim
26 words
The method of promoting tissue ingrowth as in claim 24 , wherein the fibers are formed from a filament that is woven into the tubular structure.
Claim 31
Dependent Claim
41 words
The method of promoting tissue ingrowth as in claim 24 , wherein the configuration of said tubular structure is selected from the group consisting of a straight tube, an aorto-uniliac conversion graft, a bifurcated endoluminal prosthesis, and a thoracic graft device.
Claim 32
Dependent Claim
86 words
A vascular graft adapted for placement in a primary blood vessel, comprising: a woven tubular structure defining an outer surface characterized by a plurality of thread portions extending from and lying along the exterior of the woven tubular structure, the outer surface being sized to contact and support the blood vessel, wherein the thread portions are hoop-like protrusions formed from a filament from at least about 1 cm to about 22 cm in length, and further wherein the thread portions are selected to increase tissue ingrowth.
Claim 33
Dependent Claim
86 words
A vascular graft adapted for placement in a primary blood vessel, comprising: a woven tubular structure defining an outer surface characterized by a plurality of thread portions extending from and lying along the exterior of the woven tubular structure, the outer surface being sized to contact and support the blood vessel, wherein the thread portions are hoop-like protrusions formed from a filament from at least about 1 cm to about 22 cm in length, and further wherein the thread portions are selected to increase tissue ingrowth.
Claim 34
Dependent Claim
94 words
A vascular graft adapted for placement in a primary blood vessel, comprising: a woven tubular structure defining an outer surface characterized by a plurality of thread portions extending from and lying along the exterior of the woven tubular structure, the outer surface being sized to contact and support the blood vessel, wherein the thread portions are selected to increase tissue ingrowth, and further wherein the thread portions are formed from a fiber that is woven into the tubular structure with a picks per inch range of from at least about 138 to about 222.
Claim 35
Dependent Claim
94 words
A vascular graft adapted for placement in a primary blood vessel, comprising: a woven tubular structure defining an outer surface characterized by a plurality of thread portions extending from and lying along the exterior of the woven tubular structure, the outer surface being sized to contact and support the blood vessel, wherein the thread portions are selected to increase tissue ingrowth, and further wherein the thread portions are formed from a fiber that is woven into the tubular structure with a picks per inch range of from at least about 138 to about 222.
Claim 36
Dependent Claim
100 words
A vascular graft adapted for placement in a primary blood vessel, comprising: a woven tubular structure defining an outer surface characterized by a plurality of thread portions extending from and lying along the exterior of the woven tubular structure, the outer surface being sized to contact and support the blood vessel, wherein the thread portions are selected to increase tissue ingrowth, and further wherein the plurality of thread portions define first and second texture portions, the first texture portion being characterized by a plurality of outwardly extending loop portions and located circumferentially around each end of the woven tubular structure.
Claim 37
Dependent Claim
100 words
A vascular graft adapted for placement in a primary blood vessel, comprising: a woven tubular structure defining an outer surface characterized by a plurality of thread portions extending from and lying along the exterior of the woven tubular structure, the outer surface being sized to contact and support the blood vessel, wherein the thread portions are selected to increase tissue ingrowth, and further wherein the plurality of thread portions define first and second texture portions, the first texture portion being characterized by a plurality of outwardly extending loop portions and located circumferentially around each end of the woven tubular structure.
Claim 38
Dependent Claim
86 words
A woven tubular structure defining an outer surface characterized by a plurality of floaters extending from and lying along the exterior of the woven tubular structure, the outer surface being sized to contact and support the blood vessel, wherein each floater extends from the outer surface of the tubular structure at a first point and enters the outer surface of the tubular structure at a second point such that the length of each floater is approximately equal to the distance between the first and second points.
Claim 39
Dependent Claim
86 words
A woven tubular structure defining an outer surface characterized by a plurality of floaters extending from and lying along the exterior of the woven tubular structure, the outer surface being sized to contact and support the blood vessel, wherein each floater extends from the outer surface of the tubular structure at a first point and enters the outer surface of the tubular structure at a second point such that the length of each floater is approximately equal to the distance between the first and second points.
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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) | 2006-12-15 | 2007-06-16 | 2007-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-12-15 | 2011-06-16 | 2011-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-12-15 | 2015-06-16 | 2015-12-16 | $7700.00 | Window Closed / Lapsed |