US6599316B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extendible stent apparatus
Assignee: Boston Scientific Scimed Inc
•
Filing: 2000-12-27
•
Granted: 2003-07-29
•
Expires: 2020-12-27
Abstract
Abstract The present invention concerns novel stent apparatuses for use in treating lesions at or near the bifurcation point in bifurcated cardiac, coronary, renal, peripheral vascular, gastrointestinal, pulmonary, urinary and neurovascular vessels and brain vessels. More particularly, the invention concerns a stent apparatus with at least one side opening which may further comprise an extendable stent portion laterally extending from the side opening and at least partly in registry with the wall of the side opening. Devices constructed in accordance with the invention include, singularly or in combination, a main expandable stent comprising at least one substantially circular side opening located between its proximal and distal end openings, which side opening may further comprise an expandable portion extending radially outward from the edges of the side opening; and a branch stent comprising proximal and distal end openings and which may further comprise a contacting portion at its proximal end, and which may optionally be constructed to form either a perpendicular branch or a non-perpendicular branch when inserted through a side opening of the main stent. The stents of the invention are marked with, or at least partially constructed of, a material which is imageable during intraluminal catheterization techniques, most preferably but not limited to ultrasound and x-ray.
Inventors
- 👤 Gil M. Vardi
- 👤 Charles J. Davidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:19
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/856; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61F2/95; A61F2/954; A61F2/958; A61F2/02; A61F2/04; A61F2/06; A61F2/064; A61F2/07; A61F2/852; A61F2002/065; A61F2002/067; A61F2002/821; A61F2002/91508; A61F2002/91516; A61F2002/91525; A61F2002/91533; A61F2002/9155; A61F2002/91558; A61F2002/91575; A61F2002/91583; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/005; A61F2250/00; A61F2250/0058; A61F2250/006; A61F2250/0096; A61F2250/0098
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
175 words
A stent for placement in a bifurcated body lumen having a main branch and a side branch, the stent comprising: a radially expandable generally cylindrical stent body having proximal and distal opposing ends with a body wall having a surface extending therebetween, said stent body having a plurality of cells and a side opening therethrough, said side opening being larger than each of the cells and configured to allow access to a side branch upon expansion of the stent body; and an expandable portion surrounding said side opening, wherein said expandable portion is expandable independently of the stent body, said expandable portion comprises: a plurality of elements, each of said elements having two ends, wherein one of said two ends is integrally formed with the stent body and wherein another of said two ends is unattached to the stent body prior to deployment, and wherein the elements are outwardly deflectable relative to the surface of the stent body so as to extend into the side branch while the stent body is within the main branch.
Claim 2
Dependent Claim
175 words
A stent for placement in a bifurcated body lumen having a main branch and a side branch, the stent comprising: a radially expandable generally cylindrical stent body having proximal and distal opposing ends with a body wall having a surface extending therebetween, said stent body having a plurality of cells and a side opening therethrough, said side opening being larger than each of the cells and configured to allow access to a side branch upon expansion of the stent body; and an expandable portion surrounding said side opening, wherein said expandable portion is expandable independently of the stent body, said expandable portion comprises: a plurality of elements, each of said elements having two ends, wherein one of said two ends is integrally formed with the stent body and wherein another of said two ends is unattached to the stent body prior to deployment, and wherein the elements are outwardly deflectable relative to the surface of the stent body so as to extend into the side branch while the stent body is within the main branch.
Claim 3
Dependent Claim
16 words
A stent as in claim 1 , wherein the side opening is surrounded by radiopaque markers.
Claim 4
Dependent Claim
13 words
A stent as in claim 1 , wherein the side opening is symmetrical.
Claim 5
Dependent Claim
22 words
A stent as in claim 1 , wherein the side opening is positioned closer to the proximal end than the distal end.
Claim 6
Dependent Claim
14 words
A stent as in claim 1 , wherein the side opening is generally circular.
Claim 7
Dependent Claim
173 words
A stent for placement in a bifurcated body lumen having a main branch and a side branch, the stent comprising: a radially expandable generally cylindrical stent body having proximal and distal opposing ends with a body wall having a surface extending therebetween, said body wall comprising a plurality of cells comprised of struts and a side opening therethrough, said side opening being larger than each of the cells upon expansion of the stent body; and an expandable portion surrounding said side opening, said expandable portion having a different configuration than said struts, the configuration being suitable for expansion into said side opening, wherein said expandable portion is expandable independently of the stent body, said expandable portion comprises: a plurality of elements, each of said elements having two ends, wherein one of said two ends is integrally formed with the stent body and wherein another of said two ends is unattached to the stent body prior to deployment, and wherein said unattached ends are outwardly deflectable relative to the surface of the stent body.
Claim 8
Dependent Claim
173 words
A stent for placement in a bifurcated body lumen having a main branch and a side branch, the stent comprising: a radially expandable generally cylindrical stent body having proximal and distal opposing ends with a body wall having a surface extending therebetween, said body wall comprising a plurality of cells comprised of struts and a side opening therethrough, said side opening being larger than each of the cells upon expansion of the stent body; and an expandable portion surrounding said side opening, said expandable portion having a different configuration than said struts, the configuration being suitable for expansion into said side opening, wherein said expandable portion is expandable independently of the stent body, said expandable portion comprises: a plurality of elements, each of said elements having two ends, wherein one of said two ends is integrally formed with the stent body and wherein another of said two ends is unattached to the stent body prior to deployment, and wherein said unattached ends are outwardly deflectable relative to the surface of the stent body.
Claim 9
Dependent Claim
16 words
A stent as in claim 6 , wherein the side opening is surrounded by radiopaque markers.
Claim 10
Dependent Claim
13 words
A stent as in claim 6 , wherein the side opening is symmetrical.
Claim 11
Dependent Claim
22 words
A stent as in claim 6 , wherein the side opening is positioned closer to the proximal end than the distal end.
Claim 12
Dependent Claim
14 words
A stent as in claim 6 , wherein the side opening is generally circular.
Claim 13
Dependent Claim
184 words
A stent for placement in a bifurcated body lumen having a main branch and a side branch, the stent comprising: a radially expandable generally cylindrical stent body having proximal and distal opposing ends with a body wall having a surface extending therebetween, said body wall comprising a plurality of cells comprised of struts, and a side opening through said stent body, said side opening being larger than each of the cells and configured to allow access to a side branch upon expansion of the stent body; and an expandable portion surrounding said side opening, said expandable portion having a different configuration than said struts, the configuration being suitable for expansion into said side opening, wherein said expandable portion is expandable independently of the stent body, said expandable portion comprises: a plurality of elements, each of said elements having two ends, wherein one of said two ends is integrally formed with the stent body and wherein another of said two ends is unattached to the stent body prior to deployment, and wherein the elements are outwardly deflectable relative to the surface of the stent body.
Claim 14
Dependent Claim
184 words
A stent for placement in a bifurcated body lumen having a main branch and a side branch, the stent comprising: a radially expandable generally cylindrical stent body having proximal and distal opposing ends with a body wall having a surface extending therebetween, said body wall comprising a plurality of cells comprised of struts, and a side opening through said stent body, said side opening being larger than each of the cells and configured to allow access to a side branch upon expansion of the stent body; and an expandable portion surrounding said side opening, said expandable portion having a different configuration than said struts, the configuration being suitable for expansion into said side opening, wherein said expandable portion is expandable independently of the stent body, said expandable portion comprises: a plurality of elements, each of said elements having two ends, wherein one of said two ends is integrally formed with the stent body and wherein another of said two ends is unattached to the stent body prior to deployment, and wherein the elements are outwardly deflectable relative to the surface of the stent body.
Claim 15
Dependent Claim
16 words
A stent as in claim 11 , wherein the side opening is surrounded by radiopaque markers.
Claim 16
Dependent Claim
13 words
A stent as in claim 11 , wherein the side opening is symmetrical.
Claim 17
Dependent Claim
22 words
A stent as in claim 11 , wherein the side opening is positioned closer to the proximal end than the distal end.
Claim 18
Dependent Claim
14 words
A stent as in claim 11 , wherein the side opening is generally circular.
Claim 19
Dependent Claim
13 words
A stent as in claim 1 , wherein said expandable portion is metal.
Claim 20
Dependent Claim
13 words
A stent as in claim 6 , wherein said expandable portion is metal.
Claim 21
Dependent Claim
13 words
A stent as in claim 11 , wherein said expandable portion is metal.
Claim 22
Dependent Claim
13 words
A stent as in claim 1 , wherein the side opening is oval.
Claim 23
Dependent Claim
13 words
A stent as in claim 6 , wherein the side opening is oval.
Claim 24
Dependent Claim
13 words
A stent as in claim 11 , wherein the side opening is oval.
References Cited (Backward Citations)
US5104404A
Cited
US5913897A
Cited
US5800508A
Cited
US6039749A
Cited
US5733303A
Cited
US5972018A
Cited
US5632763A
Cited
US5709713A
Cited
US5707354A
Cited
US5613981A
Cited
US5593442A
Cited
US5762631A
Cited
US5824040A
Cited
US5938682A
Cited
US5755735A
Cited
US5669932A
Cited
WO1997045073A1
Cited
US5855601A
Cited
US5922020A
Cited
WO1998017204A2
Cited
US5720735A
Cited
WO1998035634A1
Cited
US5897588A
Cited
WO1998044871A1
Cited
US6152945A
Cited
WO1998048733A1
Cited
US6048361A
Cited
WO1998052497A2
Cited
US5913895A
Cited
US6017363A
Cited
WO1999017680A1
Cited
US6013091A
Cited
US5961548A
Cited
US6036682A
Cited
WO1999039661A2
Cited
WO1999065419A1
Cited
WO2000000104A1
Cited
WO2000012166A1
Cited
WO2000013613A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-07-28 | 2007-01-27 | 2007-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-07-28 | 2011-01-27 | 2011-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-07-28 | 2015-01-27 | 2015-07-29 | $7700.00 | Window Closed / Lapsed |