US5197976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manually separable multi-lumen vascular graft
Assignee: Atrium Medical Corp
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Filing: 1991-09-16
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Granted: 1993-03-30
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Expires: 2011-09-16
Abstract
Abstract A vascular prosthesis has a plurality of tubular structures, each of which is manually separable from the others. Each tube structure has a biocompatible exterior surface and a lumen of predetermine diameter. Fluid, such as blood, is channelled through the lumina upon implantation in an arterial or venous pathway. Each of the tube structures is separable from the others over at least a portion of the axial extent of the exterior surface.
Inventors
- 👤 Steve A. Herweck
- 👤 Theodore Karwoski
- 👤 Paul Martakos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:26
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/50; A61L27/56; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61L27/14; A61L27/16; A61L27/54; A61F2002/065; A61F2250/00; A61F2250/0058; A61F2250/0067; A61L2300/00
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
75 words
An implantable vascular prosthesis comprising plural longitudinally parallel tube structures, each of said tube structures comprising a wall defining a longitudinally extending biocompatible exterior surface and an interior lumen of predetermined diameter for channeling fluid flow therethrough, said parallel tube structures being releasably connected to one another via a thickened wall portion extending over at least a portion of the longitudinal extent of said exterior surfaces to permit manual spatial separation of said tube structures.
Claim 2
Dependent Claim
75 words
An implantable vascular prosthesis comprising plural longitudinally parallel tube structures, each of said tube structures comprising a wall defining a longitudinally extending biocompatible exterior surface and an interior lumen of predetermined diameter for channeling fluid flow therethrough, said parallel tube structures being releasably connected to one another via a thickened wall portion extending over at least a portion of the longitudinal extent of said exterior surfaces to permit manual spatial separation of said tube structures.
Claim 3
Dependent Claim
13 words
The vascular prosthesis of claim 1, wherein said tube structures consist of polytetrafluoroethylene.
Claim 4
Dependent Claim
25 words
The vascular prosthesis of claim 2, wherein said polytetrafluoroethylene is selected from the group consisting of, expanded polytetrafluoroethylene, stretched polytetrafluoroethylene, and stretched and expanded polytetrafluoroethylene.
Claim 5
Dependent Claim
14 words
The vascular prosthesis of claim 1, wherein said tube structures consist of copolymeric material.
Claim 6
Dependent Claim
25 words
The vascular prosthesis of claim 1, wherein said tube structures include identifying indicia for distinguishing each of said structures from the other of said structures.
Claim 7
Dependent Claim
93 words
An implantable vascular prosthesis comprising first and second longitudinally parallel tube structures, each of said structures comprising a wall consisting of polytetrafluoroethylene and defining a longitudinally extending biocompatible exterior surface and an interior lumen of predetermined diameter for channeling blood flow therethrough, said lumina being of unequal diameters and converging to form a single lumen at one end of the vascular prosthesis, said tube structures being releasably connected to one another over at least a portion of the longitudinal extent of said exterior surfaces to permit manual spatial separation of said tube structures.
Claim 8
Dependent Claim
93 words
An implantable vascular prosthesis comprising first and second longitudinally parallel tube structures, each of said structures comprising a wall consisting of polytetrafluoroethylene and defining a longitudinally extending biocompatible exterior surface and an interior lumen of predetermined diameter for channeling blood flow therethrough, said lumina being of unequal diameters and converging to form a single lumen at one end of the vascular prosthesis, said tube structures being releasably connected to one another over at least a portion of the longitudinal extent of said exterior surfaces to permit manual spatial separation of said tube structures.
Claim 9
Dependent Claim
20 words
The vascular prosthesis of claim 6, wherein said tube structures are attached to one another via a thickened wall portion.
Claim 10
Dependent Claim
20 words
The vascular prosthesis of claim 6, wherein said tube structures are attached to one another via a bead of material.
Claim 11
Dependent Claim
24 words
The device of claim 6 wherein said polytetrafluoroethylene is selected from the group consisting of, expanded polytetrafluoroethylene, stretched polytetrafluoroethylene, and stretched and expanded polytetrafluoroethylene.
Claim 12
Dependent Claim
15 words
The vascular prosthesis of claim 6, wherein said tube structures consist of a copolymeric material.
Claim 13
Dependent Claim
25 words
The vascular prosthesis of claim 6, wherein said tube structures include identifying indicia for distinguishing each of said structures from the other of said structures.
Claim 14
Dependent Claim
75 words
An implantable vascular prosthesis comprising plural longitudinally parallel tube structures, each of said tube structures comprising a wall defining a longitudinally extending biocompatible exterior surface and an interior lumen of predetermined diameter for channeling fluid flow therethrough, said parallel tube structures being releasably connected to one another via a bead of material extending over at least a portion of the longitudinal extent of said exterior surfaces to permit manual spatial separation of said tube structures.
Claim 15
Dependent Claim
75 words
An implantable vascular prosthesis comprising plural longitudinally parallel tube structures, each of said tube structures comprising a wall defining a longitudinally extending biocompatible exterior surface and an interior lumen of predetermined diameter for channeling fluid flow therethrough, said parallel tube structures being releasably connected to one another via a bead of material extending over at least a portion of the longitudinal extent of said exterior surfaces to permit manual spatial separation of said tube structures.
Claim 16
Dependent Claim
13 words
The vascular prosthesis of claim 12, wherein said tube structures consist of polytetrafluoroethylene.
Claim 17
Dependent Claim
25 words
The vascular prosthesis of claim 13, wherein said polytetrafluoroethylene is selected from the group consisting of, expanded polytetrafluoroethylene, stretched polytetrafluoroethylene, and stretched and expanded polytetrafluoroethylene.
Claim 18
Dependent Claim
15 words
The vascular prosthesis of claim 12, wherein said tube structure consist of a copolymeric material.
Claim 19
Dependent Claim
25 words
The vascular prosthesis of claim 12, wherein said tube structures include identifying indicia for distinguishing each of said structures from the other of said structures.
Claim 20
Dependent Claim
100 words
An implantable vascular prosthesis comprising plural longitudinally parallel tube structures, each of said tube structures comprising a wall defining a longitudinally extending biocompatible exterior surface and an interior lumen of predetermined diameter for channeling fluid flow therethrough, said parallel tube structures being releasably connected to one another over at least a portion of the longitudinal extent of said exterior surfaces to permit manual spatial separation of said tube structures wherein the diameter of the lumen of one of the plural tube structures is different from the diameter of the lumen of at least one other of the plural tube structures.
Claim 21
Dependent Claim
100 words
An implantable vascular prosthesis comprising plural longitudinally parallel tube structures, each of said tube structures comprising a wall defining a longitudinally extending biocompatible exterior surface and an interior lumen of predetermined diameter for channeling fluid flow therethrough, said parallel tube structures being releasably connected to one another over at least a portion of the longitudinal extent of said exterior surfaces to permit manual spatial separation of said tube structures wherein the diameter of the lumen of one of the plural tube structures is different from the diameter of the lumen of at least one other of the plural tube structures.
Claim 22
Dependent Claim
13 words
The vascular prosthesis of claim 17, wherein said tube structures consist of polytetrafluoroethylene.
Claim 23
Dependent Claim
25 words
The vascular prosthesis of claim 18, wherein said polytetrafluoroethylene is selected from the group consisting of, expanded polytetrafluoroethylene, stretched polytetrafluoroethylene, and stretched and expanded polytetrafluoroethylene.
Claim 24
Dependent Claim
15 words
The vascular prosthesis of claim 17, wherein said tube structures consist of a copolymeric material.
Claim 25
Dependent Claim
89 words
An implantable vascular prosthesis comprising plural longitudinally parallel tube structures, each of said tube structures comprising a wall defining a longitudinally extending biocompatible exterior surface and an interior lumen of predetermined diameter for channeling fluid flow therethrough, said parallel tube structures being releasably connected to one another over at least a portion of the longitudinal extent of said exterior surfaces to permit manual spatial separation of said tube structures wherein at least two of the lumina converge to form a single lumen at one end of said tube structure.
Claim 26
Dependent Claim
89 words
An implantable vascular prosthesis comprising plural longitudinally parallel tube structures, each of said tube structures comprising a wall defining a longitudinally extending biocompatible exterior surface and an interior lumen of predetermined diameter for channeling fluid flow therethrough, said parallel tube structures being releasably connected to one another over at least a portion of the longitudinal extent of said exterior surfaces to permit manual spatial separation of said tube structures wherein at least two of the lumina converge to form a single lumen at one end of said tube structure.
Claim 27
Dependent Claim
13 words
The vascular prosthesis of claim 21, wherein said tube structures consist of polytetrafluoroethylene.
Claim 28
Dependent Claim
25 words
The vascular prosthesis of claim 22, wherein said polytetrafluoroethylene is selected from the group consisting of, expanded polytetrafluoroethylene, stretched polytetrafluoroethylene, and stretched and expanded polytetrafluoroethylene.
Claim 29
Dependent Claim
15 words
The vascular prosthesis of claim 21, wherein said tube structures consist of a copolymeric material.
Claim 30
Dependent Claim
25 words
The vascular prosthesis of claim 21, wherein said tube structures include identifying indicia for distinguishing each of said structures from the other of said structures.
References Cited (Backward Citations)
US2978787A
Cited
US3805301A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-03-29 | 1996-09-28 | 1997-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-03-29 | 2000-09-28 | 2001-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-03-29 | 2004-09-28 | 2005-03-30 | $7700.00 | Window Closed / Lapsed |