US5697969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vascular prosthesis and method of implanting
Assignee: Maquet Cardiovascular LLC
•
Filing: 1995-09-20
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Granted: 1997-12-16
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Expires: 2015-09-20
Abstract
Abstract The present invention provides a vascular prosthesis which comprises a braided tubular fabric comprising a plurality of braid layers wherein each layer includes at least one interlocking yarn which extends from that layer into another layer to form an interlock therewith. In one aspect of the invention, the plurality of braid layers may include a substantially non-absorbable first surface layer and a substantially resorbable second surface layer.
Inventors
- 👤 Peter J. Schmitt
- 👤 David Stuart Brookstein
- 👤 John Skelton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:40
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; D; D04; D04C; D04C1/00; D04C1/06; A61F2210/00; A61F2210/0004; D10; D10B; D10B2403/00; D10B2403/02; D10B2403/024; D10B2403/0241; D10B2509/00; D10B2509/06
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
66 words
A prosthetic device, comprising: an implantable three-dimensional braided tubular structure having a plurality of braided layers including an inner surface substantially formed of resorbable yarn and an outer surface substantially formed of non-absorbable yarn wherein each layer includes at least one interlocking yarn which extends into another layer to form an interlock therewith whereby said device maintains its structural integrity as said resorbable yarn is resorbed.
Claim 2
Dependent Claim
66 words
A prosthetic device, comprising: an implantable three-dimensional braided tubular structure having a plurality of braided layers including an inner surface substantially formed of resorbable yarn and an outer surface substantially formed of non-absorbable yarn wherein each layer includes at least one interlocking yarn which extends into another layer to form an interlock therewith whereby said device maintains its structural integrity as said resorbable yarn is resorbed.
Claim 3
Dependent Claim
15 words
The prosthetic device according to claim 1, wherein said resorbable material comprises biologically resorbable yarns.
Claim 4
Dependent Claim
26 words
The prosthetic device according to claim 2, wherein said yarns are selected from the group consisting of catgut, reconstituted collagen, polyglycolic acid, polydioxanone and poly(glycolide-trimethylene carbonate).
Claim 5
Dependent Claim
21 words
The prosthetic device according to claim 1, wherein said structure further includes at least one intermediate layer between said surface layers.
Claim 6
Dependent Claim
16 words
The prosthetic device according to claim 1, further comprising non-absorbable external support means surrounding said structure.
Claim 7
Dependent Claim
26 words
The prosthetic device according to claim 5, wherein said support means includes at least one wrap forming a helical path around the exterior of said structure.
Claim 8
Dependent Claim
23 words
The prosthetic device according to claim 6, wherein said wrap is formed of an elongate textile structure having a substantially high bending modulus.
Claim 9
Dependent Claim
20 words
The prosthetic device according to claim 6, wherein said wrap is formed of monofilament yarns having a substantially high denier.
Claim 10
Dependent Claim
29 words
The prosthetic device according to claim 6, wherein said wrap is formed of multifilament yarns having a composite denier and linear density greater than that of said braided structure.
Claim 11
Dependent Claim
19 words
The prosthetic device according to claim 6, wherein said wrap is externally attached to said structure by an adhesive.
Claim 12
Dependent Claim
19 words
The prosthetic device according to claim 6, wherein said wrap is incorporated into a layer of said braided structure.
Claim 13
Dependent Claim
26 words
The prosthetic device according to claim 11, wherein said wrap is incorporated into an outer surface layer of said structure and forms a helical path therein.
Claim 14
Dependent Claim
16 words
The prosthetic device according to claim 6, wherein said wrap is formed of a non-absorbable material.
Claim 15
Dependent Claim
39 words
The prosthetic device according to claim 5, wherein said support means includes first and second wraps forming helical paths around the exterior of said structure, said first wrap forming a helical path opposite to that of said second wrap.
Claim 16
Independent Claim
136 words
A method of repairing a tubular vessel in a patient's body, comprising: removing a damaged portion of said tubular vessel from said patient's body; braiding a three-dimensional braided interlocking structure on a mandrel having an outside diameter corresponding to the inside diameter of said tubular vessel to provide a prosthesis, said structure having a plurality of braided layers formed of resorbable and non-absorbable yarn wherein each layer includes at least one interlocking yarn which extends into another layer to form an interlock therewith whereby said device maintains its structural integrity as said resorbable yarn is resorbed; positioning said prosthesis into the region of said vessel from which said damaged portion was removed; and securing each end of said prosthesis to a respective end of said vessel whereby a continuous fluid pathway is re-established along said vessel.
Claim 17
Independent Claim
136 words
A method of repairing a tubular vessel in a patient's body, comprising: removing a damaged portion of said tubular vessel from said patient's body; braiding a three-dimensional braided interlocking structure on a mandrel having an outside diameter corresponding to the inside diameter of said tubular vessel to provide a prosthesis, said structure having a plurality of braided layers formed of resorbable and non-absorbable yarn wherein each layer includes at least one interlocking yarn which extends into another layer to form an interlock therewith whereby said device maintains its structural integrity as said resorbable yarn is resorbed; positioning said prosthesis into the region of said vessel from which said damaged portion was removed; and securing each end of said prosthesis to a respective end of said vessel whereby a continuous fluid pathway is re-established along said vessel.
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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) | 2000-12-15 | 2001-06-16 | 2001-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-12-15 | 2005-06-16 | 2005-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-12-15 | 2009-06-16 | 2009-12-16 | $7700.00 | Window Closed / Lapsed |