US6358276B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid containing endoluminal stent
Assignee: Bard Peripheral Vascular Inc
•
Filing: 1999-05-27
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Granted: 2002-03-19
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Expires: 2019-05-27
Abstract
Abstract An endoluminal stent contains a hollow passageway for the circulation of fluids to treat vascular walls affected with malignant growths or experiencing restenosis. The hollow passageway stent can have one or a plurality of passageways and is configured in a tubular shape with numerous coils, providing an empty tubular lumen through the center of the stent to allow blood flow. The stent is connected to a removable catheter that conducts fluid to the stent. Fluid flow may be regulated by valves incorporated in either the stent and/or the catheter. The stent and catheter are connected to avoid leakage of the fluid. Cryogenic, heated or radioactive fluids are circulated through the stent to treat the affected sites. A method of delivering drugs to the vascular wall is also provided by creating a stent with porous outer walls to allow diffusion of the drug.
Inventors
- 👤 Tarun J. Edwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:06
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/88; A61F2210/00; A61F2210/0014; A61F2210/0023; A61F2210/0042; A61F2250/00; A61F2250/0058; A61F2250/0067
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
102 words
An endoluminal stent system comprising: a stent comprised of non-inflatable non-porous tubing, having at least one fluid flow conduit therein, wherein the tubing is circumferentially arranged so as to form a side wall of the stent, thereby creating a main lumen of the stent through which blood can flow; a removable catheter wherein a proximal end remains outside of a body and a distal end is sealingly attached to the stent, wherein the catheter is adapted to deliver fluid to the stent; connector means for attaching the removable catheter to the stent; and valve means within the system for controlling fluid flow.
Claim 2
Dependent Claim
102 words
An endoluminal stent system comprising: a stent comprised of non-inflatable non-porous tubing, having at least one fluid flow conduit therein, wherein the tubing is circumferentially arranged so as to form a side wall of the stent, thereby creating a main lumen of the stent through which blood can flow; a removable catheter wherein a proximal end remains outside of a body and a distal end is sealingly attached to the stent, wherein the catheter is adapted to deliver fluid to the stent; connector means for attaching the removable catheter to the stent; and valve means within the system for controlling fluid flow.
Claim 3
Dependent Claim
17 words
The endoluminal stent system as described in claim 1 , wherein the stent is formed from metal.
Claim 4
Dependent Claim
17 words
The endoluminal stent system as described in claim 2 , wherein the stent has shape memory properties.
Claim 5
Dependent Claim
17 words
The endoluminal stent system as described in claim 1 , wherein the stent is formed from plastic.
Claim 6
Dependent Claim
33 words
The endoluminal stent system as described in claim 1 , further comprising a core that is positioned within, but spaced apart from, an outer wall of the tubing, creating an annular region therebetween.
Claim 7
Dependent Claim
17 words
The endoluminal stent device as described in claim 5 , wherein said core contains a hollow passageway.
Claim 8
Dependent Claim
19 words
The endoluminal stent system as described in claim 1 , wherein the tubing is formed into a coiled structure.
Claim 9
Dependent Claim
19 words
The endoluminal stent system as described in claim 1 , wherein the tubing has a circular shape in cross-section.
Claim 10
Dependent Claim
96 words
An endoluminal stent device comprising: a stent defined by a non-inflatable non-porous outer wall adapted to accommodate a fluid therein, wherein the outer wall is arranged into a coiled structure so as to form a side wall of the stent, thereby creating a main lumen of the stent through which blood can flow; a removable catheter wherein a proximal end remains outside of a body and a distal end is sealingly attached to a connector, wherein the catheter is adapted to deliver fluid to the stent; and valve means within the device for controlling fluid flow.
Claim 11
Dependent Claim
96 words
An endoluminal stent device comprising: a stent defined by a non-inflatable non-porous outer wall adapted to accommodate a fluid therein, wherein the outer wall is arranged into a coiled structure so as to form a side wall of the stent, thereby creating a main lumen of the stent through which blood can flow; a removable catheter wherein a proximal end remains outside of a body and a distal end is sealingly attached to a connector, wherein the catheter is adapted to deliver fluid to the stent; and valve means within the device for controlling fluid flow.
Claim 12
Dependent Claim
19 words
The endoluminal stent device as described in claim 9 , wherein said valve means are contained within said stent.
Claim 13
Dependent Claim
19 words
The endoluminal stent device as described in claim 9 , wherein said valve means are contained within said catheter.
Claim 14
Dependent Claim
17 words
The endoluminal stent device as described in claim 9 , wherein the stent is formed from metal.
Claim 15
Dependent Claim
17 words
The endoluminal stent device as described in claim 12 , wherein the stent has shape memory properties.
Claim 16
Dependent Claim
17 words
The endoluminal stent device as described in claim 9 , wherein the stent is formed from plastic.
Claim 17
Dependent Claim
33 words
The endoluminal stent device as described in Claim 9 , further comprising a core that is positioned within, but spaced apart from, the outer wall of the stent, creating an annular region therebetween.
Claim 18
Dependent Claim
17 words
The endoluminal stent device as described in claim 15 , wherein said core contains a hollow passageway.
Claim 19
Dependent Claim
20 words
The endoluminal stent device as described in claim 9 , wherein the outer wall has a circular shape in cross-section.
Claim 20
Dependent Claim
130 words
An endoluminal stent apparatus comprising: a stent comprised of a support wire surrounded by an expanded polytetrafluoroethylene tubing, creating a first lumen therebetween, wherein the combination of support wire and expanded polytetrafluoroethylene tubing is arranged into a coiled structure so as to form a side wall of the stent, thereby creating a main lumen of the stent through which blood can flow, wherein the tubing includes a plurality of porous segments spaced apart from each other along a length thereof, and wherein the support wire is hollow, creating a second lumen coaxial with the first lumen; and a removable catheter, wherein a proximal end remains outside of a body and a distal end is sealingly attached to the stent, wherein the catheter is adapted to deliver fluid to the stent.
Claim 21
Dependent Claim
130 words
An endoluminal stent apparatus comprising: a stent comprised of a support wire surrounded by an expanded polytetrafluoroethylene tubing, creating a first lumen therebetween, wherein the combination of support wire and expanded polytetrafluoroethylene tubing is arranged into a coiled structure so as to form a side wall of the stent, thereby creating a main lumen of the stent through which blood can flow, wherein the tubing includes a plurality of porous segments spaced apart from each other along a length thereof, and wherein the support wire is hollow, creating a second lumen coaxial with the first lumen; and a removable catheter, wherein a proximal end remains outside of a body and a distal end is sealingly attached to the stent, wherein the catheter is adapted to deliver fluid to the stent.
Claim 22
Dependent Claim
22 words
The endoluminal stent apparatus as described in claim 18 , further comprising connector means for attaching the removable catheter to the stent.
Claim 23
Dependent Claim
21 words
The endoluminal stent apparatus as described in claim 18 , further comprising valve means for controlling fluid flow in the system.
Claim 24
Dependent Claim
43 words
The endoluminal stent system as described in claim 1 , further comprising two fluid flow conduits, wherein said conduits are distinct and separate at a proximal end of the stent, and wherein said conduits are connected at a distal end of the stent.
Claim 25
Dependent Claim
42 words
The endoluminal stent device as described in claim 9 , further comprising two fluid conduits, wherein said conduits are distinct and separate at a proximal end of the stent, and wherein said conduits are connected at a distal end of the stent.
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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) | 2005-03-18 | 2005-09-17 | 2006-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-03-18 | 2009-09-17 | 2010-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-03-18 | 2013-09-17 | 2014-03-19 | $7700.00 | Window Closed / Lapsed |