US5456711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Warp knitted carotid patch having finished selvedged edges
Assignee: Intervascular Inc
•
Filing: 1993-07-22
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Granted: 1995-10-10
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Expires: 2013-07-22
Abstract
Abstract A warp knitted vascular patch material, made in specific widths, the selvedges of the material are specially finished on the knitting machine without the introduction of additional threads to give a strong edge which will not fray and give firm support for the sutures. The specially knitted edges enables small neat sutures to be made without the risk of pulling out. This prevents all the problems of fraying edges and bulky seams found when unsized material is cut to the required width. This patch material is designed specifically for arterial closure following a carotid endorectomy.
Inventors
- 👤 John O. Hudson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:39
CPC Classifications
D; D04; D04B; D04B21/00; D04B21/20; A; A61; A61F; A61F2/00; A61F2/0063; A61F2/02; A61F2/04; A61F2/06; A61F2002/0068; D10; D10B; D10B2509/00; D10B2509/06
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
53 words
A warp knitted carotid patch for arterial closure after an endarectomy, said carotid patch comprising a warp knitted yarn having a predetermined width dimensioned for closure of said artery after said endarectomy and with finished knitted selvedged edges consisting essentially of said warp knitted yarn to avoid the need to cut to width.
Claim 2
Dependent Claim
53 words
A warp knitted carotid patch for arterial closure after an endarectomy, said carotid patch comprising a warp knitted yarn having a predetermined width dimensioned for closure of said artery after said endarectomy and with finished knitted selvedged edges consisting essentially of said warp knitted yarn to avoid the need to cut to width.
Claim 3
Dependent Claim
35 words
A warp knitted carotid patch according to claim 1 wherein said carotid patch is fabricated on a knitting machine having front and rear guide bars threaded and gaited to produce said finished knitted selvedged edges.
Claim 4
Dependent Claim
14 words
A warp knitted carotid patch according to claim 1 having a reverse locknit structure.
Claim 5
Dependent Claim
18 words
A warp knitted carotid patch according to claim 1 wherein said warp knitted yarn comprises a polyester yarn.
Claim 6
Dependent Claim
17 words
A warp knitted carotid patch according to claim 3 wherein said polyester yarn comprises 56 gauge polyester.
Claim 7
Dependent Claim
23 words
A warp knitted carotid patch according to claim 1 wherein said yarn count is in the range of 40 denier to 100 denier.
Claim 8
Dependent Claim
18 words
A warp knitted carotid patch according to claim 6 wherein said polyester yarn comprises 70 denier 34 filament.
Claim 9
Dependent Claim
32 words
A warp knitted carotid patch according to claim 1 wherein one surface of said patch comprises filaments of yarn raised in loops above the surface to form a raised texture or velour.
Claim 10
Dependent Claim
26 words
A warp knitted carotid patch according to claim 1 wherein said warp knitting machine has a gauge range of between 28 and 32 needles per inch.
Claim 11
Dependent Claim
13 words
A warp knitted carotid patch according to claim 1 having a sharkskin construction.
Claim 12
Dependent Claim
14 words
A warp knitted carotid patch according to claim 1 having a queen's cord construction.
Claim 13
Dependent Claim
25 words
A warp knitted carotid patch according to claim 1 having a width within the range of from about 4 mm to about 16 mm wide.
Claim 14
Dependent Claim
83 words
A warp knitted carotid patch for arterial closure after an endarectomy, said carotid patch having a first surface and a second surface, said first surface being substantially smooth, and said second surface being characterized by filaments of yarn raised in loops above said second surface to form a raised texture or velour, said carotid patch further having a predetermined width dimensioned for closure of said artery after said endarectomy and with finished knitted selvedged edges to avoid the need to cut to width.
Claim 15
Dependent Claim
83 words
A warp knitted carotid patch for arterial closure after an endarectomy, said carotid patch having a first surface and a second surface, said first surface being substantially smooth, and said second surface being characterized by filaments of yarn raised in loops above said second surface to form a raised texture or velour, said carotid patch further having a predetermined width dimensioned for closure of said artery after said endarectomy and with finished knitted selvedged edges to avoid the need to cut to width.
Claim 16
Dependent Claim
34 words
A warp knitted carotid patch according to claim 13 wherein said carotid patch is fabricated on a knitting machine having front and rear guide bars threaded and gaited to produce said finished selvedged edges.
Claim 17
Dependent Claim
14 words
A warp knitted carotid patch according to claim 13 having a reverse locknit construction.
Claim 18
Dependent Claim
13 words
A warp knitted carotid patch according to claim 13 having a sharkskin construction.
Claim 19
Dependent Claim
14 words
A warp knitted carotid patch according to claim 13 having a queen's cord construction.
Claim 20
Dependent Claim
16 words
A warp knitted carotid patch according to claim 13 wherein said warp knitted yarn comprises polyester.
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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) | 1998-10-09 | 1999-04-10 | 1999-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-09 | 2003-04-10 | 2003-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-09 | 2007-04-10 | 2007-10-10 | $7700.00 | Window Closed / Lapsed |