US5562725A
Expired / Lapsed
US
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Radially self-expanding implantable intraluminal device
Assignee: Boston Scientific Scimed Inc
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Filing: 1992-09-14
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Granted: 1996-10-08
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Expires: 2012-09-14
Abstract
Abstract A radially self-expanding implantable intraluminal device formed from a hollow tubular braid. The intraluminal device may be used in a variety of medical procedures which require a passageway to be maintained in an open position or which require reinforcement, support or a bypass conduit such as in blood vessels weakened by disease. The intraluminal device is longitudinally expanded or radially collapsed for ease of insertion into a lumen and upon alignment within the lumen, the intraluminal device radially self-expands to come into intimate contact with the inner surface of the lumen.
Inventors
- 👤 Peter J. Schmitt
- 👤 David J. Lentz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:45
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/02; A61F2/04; A61F2/06; A61F2/07; D; D04; D04C; D04C1/00; D04C1/06; A61F2/89; A61F2002/075; A61F2002/077; A61F2/30; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30065; A61F2002/3008; A61F2002/30316; A61F2002/30329; A61F2002/30461; A61F2/95; A61F2002/9534; A61F2210/00; A61F2210/0071; A61F2220/00; A61F2220/0025; A61F2220/0075; A61F2250/00; A61F2250/0058; A61F2250/0096; A61F2250/0098; D10; D10B; D10B2509/00; D10B2509/06; Y; Y10; Y10S; Y10S623/00; Y10S623/902; Y10S623/903
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
46 words
An implantable intraluminal device, comprising: a radially self-expanding hollow tubular braid, wherein the device is made from a thermoplastic material which is heat-set for a sufficient time and temperature to effectuate a permanent memory in an expanded state and wherein the braid is a three-dimensional braid.
Claim 2
Dependent Claim
46 words
An implantable intraluminal device, comprising: a radially self-expanding hollow tubular braid, wherein the device is made from a thermoplastic material which is heat-set for a sufficient time and temperature to effectuate a permanent memory in an expanded state and wherein the braid is a three-dimensional braid.
Claim 3
Dependent Claim
14 words
A device as described in claim 1, wherein the device is an endovascular prosthesis.
Claim 4
Dependent Claim
29 words
A device a described in claim 1, wherein the device expands to substantially conform to a shape and inner surface of a lumen in which the device is implanted.
Claim 5
Dependent Claim
13 words
A device as described in claim 1, wherein the device is radially adjustable.
Claim 6
Dependent Claim
13 words
A device as described in claim 1, wherein the device is longitudinally flexible.
Claim 7
Dependent Claim
23 words
A device as described in claim 1, wherein the device serves as a conduit for fluid and provides support to a weakened lumen.
Claim 8
Dependent Claim
25 words
A device as described in claim 1, wherein the thermoplastic is selected from the group consisting of polyester, polypropylene, polyethylene, polyurethane, polytetrafluoroethylene and mixtures thereof.
Claim 9
Dependent Claim
16 words
A device as described in claim 1, wherein the device is made from a metallic substance.
Claim 10
Dependent Claim
12 words
A device as described in claim 1, wherein the thermoplastic is polyester.
Claim 11
Dependent Claim
27 words
A device as described in claim 9, wherein the polyester is heat-conditioned at 350° F. for a time sufficient to set it in a radially expanded position.
Claim 12
Dependent Claim
19 words
A device as described in claim 1, wherein the device is in a radially expanded position under unstressed conditions.
Claim 13
Dependent Claim
29 words
A device as described in claim 1, wherein the device has a diameter in the range of about 4 mm to about 38 mm in the radially expanded position.
Claim 14
Dependent Claim
29 words
A device as described in claim 1, wherein the device has a diameter in the range of about 12 mm to about 24 mm in a longitudinally expanded position.
Claim 15
Dependent Claim
42 words
A device as described in claim 1, wherein the three-dimensional braid is a multilayered interlocked braid formed from at least a first braided layer and a second braided layer such that yarns from the first layer are interlocked with the second layer.
Claim 16
Dependent Claim
20 words
A device as described in claim 1, wherein the braid has a braid angle from about 10° to about 85°.
Claim 17
Dependent Claim
20 words
A device as described in claim 15, wherein the braid has a braid angle from about 15° to about 70°.
Claim 18
Dependent Claim
25 words
A device as described in claim 1, wherein the braid is formed from a yarn having a denier of about 20 to about 500 denier.
Claim 19
Dependent Claim
17 words
A device as described in claim 1, further comprising means for attaching the device to the lumen.
Claim 20
Dependent Claim
23 words
A device as described in claim 18, wherein the attaching means comprises hooks integrally formed in at least one end of the device.
Claim 21
Dependent Claim
31 words
A device as described in claim 1, wherein the device has a porosity in an expanded state as determined by water permeability of about 50 to about 5000 ml/min/cm 2 .
Claim 22
Dependent Claim
20 words
A device as described in claim 20, wherein the porosity is from about 500 to about 3000 ml/min/cm 2 .
Claim 23
Dependent Claim
20 words
A device as described in claim 1, wherein the device is detectable once deployed within a vessel by arteriographic methods.
Claim 24
Dependent Claim
15 words
The device as described in claim 22, wherein the device contains a radiopaque marker material.
Claim 25
Dependent Claim
14 words
A device as described in claim 1, wherein the device comprises a bifurcated structure.
Claim 26
Dependent Claim
14 words
A device as described in claim 1, wherein the device comprises a trifurcated structure.
Claim 27
Dependent Claim
38 words
A device as described in claim 1, wherein the three-dimensional braid is a solid braid having at least a first and a second layer wherein each yarn of said braid is present in every layer of the braid.
Claim 28
Independent Claim
53 words
A method of supporting a body lumen, comprising: introducing intraluminally a radially self-expanding implantable hollow tubular braid, wherein the tubular braid is made from a thermoplastic material which is heat-set for a sufficient time and temperature to effectuate a permanent memory in an expanded state and wherein the braid is a three-dimensional braid.
Claim 29
Independent Claim
53 words
A method of supporting a body lumen, comprising: introducing intraluminally a radially self-expanding implantable hollow tubular braid, wherein the tubular braid is made from a thermoplastic material which is heat-set for a sufficient time and temperature to effectuate a permanent memory in an expanded state and wherein the braid is a three-dimensional braid.
Claim 30
Dependent Claim
78 words
An implantable intraluminal device, comprising: a radially self-expanding braided tubular structure, the device being formed from braiding thermoplastic yarns, the braided structure being heat-set for a sufficient time and temperature to effectuate a permanent memory in an expanded state, and wherein the yarns of the braid are free from one another to scissor from an unexpanded state to the expanded state due to the heat-set memory of the braided structure, wherein the braided structure is a three-dimensional braid.
Claim 31
Dependent Claim
78 words
An implantable intraluminal device, comprising: a radially self-expanding braided tubular structure, the device being formed from braiding thermoplastic yarns, the braided structure being heat-set for a sufficient time and temperature to effectuate a permanent memory in an expanded state, and wherein the yarns of the braid are free from one another to scissor from an unexpanded state to the expanded state due to the heat-set memory of the braided structure, wherein the braided structure is a three-dimensional braid.
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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) | 1999-10-08 | 2000-04-08 | 2000-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-10-08 | 2004-04-08 | 2004-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-10-08 | 2008-04-08 | 2008-10-08 | $7700.00 | Window Closed / Lapsed |