US6325826B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extendible stent apparatus
Assignee: Boston Scientific Scimed Inc
•
Filing: 1999-06-04
•
Granted: 2001-12-04
•
Expires: 2019-06-04
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
- 👤 Eric Williams
- 👤 Stuart Lin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:24
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; A61F2002/065; A61F2002/067; A61F2002/821; A61F2002/91508; A61F2002/91516; A61F2002/91525; A61F2002/91533; A61F2002/9155; A61F2002/91558; A61F2002/91575; A61F2002/91583; A61F2250/00; A61F2250/0058; A61F2250/006; A61F2250/0096; A61F2250/0098
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
112 words
A stent for placement in a bifurcated body lumen having a main branch and a side branch, said stent comprising: a radially expandable, generally cylindrical body having a first end, a second end, and a side opening between said ends, wherein a first portion of the body between the first end and the side opening expands in response to a first radially outward pressure and a second portion of the body between the side opening and the second end expands in response to a second radially outward pressure, wherein the first pressure is less than the second pressure, and wherein said first portion and said second portion comprise substantially the same material.
Claim 2
Dependent Claim
112 words
A stent for placement in a bifurcated body lumen having a main branch and a side branch, said stent comprising: a radially expandable, generally cylindrical body having a first end, a second end, and a side opening between said ends, wherein a first portion of the body between the first end and the side opening expands in response to a first radially outward pressure and a second portion of the body between the side opening and the second end expands in response to a second radially outward pressure, wherein the first pressure is less than the second pressure, and wherein said first portion and said second portion comprise substantially the same material.
Claim 3
Dependent Claim
39 words
A stent as in claim 1 , wherein the first pressure is in the range from about 1 atmosphere to about 10 atmospheres and the second pressure is in the range from about 2 atmospheres to about 18 atmospheres.
Claim 4
Dependent Claim
32 words
A stent as in claim 1 , wherein the first portion has a first axial spine and wherein the first axial spine expands circumferentially in response to said first radially outward pressure.
Claim 5
Dependent Claim
26 words
The stent as in claim 3 wherein the second portion has a second axial spine that expands circumferentially in response to a second radially outward pressure.
Claim 6
Dependent Claim
43 words
A stent as in claim 1 , wherein the first portion comprises serpentine rings with a first strut length and the second portion comprises serpentine rings with a second strut length, wherein the first strut length is greater than the second strut length.
Claim 7
Dependent Claim
36 words
The stent as in claim 1 , wherein said stent body comprises a plurality of cells, said side opening being multiple times the size of each of the cells prior to expansion of the stent body.
Claim 8
Dependent Claim
37 words
A stent as in claim 1 , wherein the first portion comprises a first strut pattern and the second portion comprises a second strut pattern, wherein the first strut pattern is different than the second strut pattern.
Claim 9
Dependent Claim
24 words
The stent as in claim 7 wherein the first portion comprises a first axial spine, said first axial spine comprising a third strut pattern.
Claim 10
Dependent Claim
66 words
The stent as in claim 1 wherein the first portion comprises a first strut pattern and the second portion comprises a second strut pattern, said first strut pattern being different than said second strut pattern, and wherein the first portion further comprises a first axial spine that expands circumferentially in response to said first radially outward pressure, said first axial spine having a third strut pattern.
Claim 11
Independent Claim
86 words
A method for deploying a stent in a bifurcated body lumen, said method comprising: providing a stent having a first portion, a second portion, and a side opening between said portions, said first and second portion comprising substantially the same material and adapted to expand at different pressures; expanding the first portion against a luminal wall segment on one side of the bifurcation; aligning the side opening with an ostium of the branch lumen; and expanding the second portion on the other side of the bifurcation.
Claim 12
Independent Claim
86 words
A method for deploying a stent in a bifurcated body lumen, said method comprising: providing a stent having a first portion, a second portion, and a side opening between said portions, said first and second portion comprising substantially the same material and adapted to expand at different pressures; expanding the first portion against a luminal wall segment on one side of the bifurcation; aligning the side opening with an ostium of the branch lumen; and expanding the second portion on the other side of the bifurcation.
Claim 13
Dependent Claim
131 words
A stent for placement in a bifurcated body lumen having a main branch and a side branch, said stent comprising: a radially expandable generally cylindrical stent body having proximal and distal opposing ends with a body wall having an even surface extending therebetween, said body wall having a plurality of cells, and a side opening therethrough, said side opening being multiple times the size of each of the cells prior to expansion of the stent body; and a deflectable element integrally formed with the stent body, wherein the deflectable element is generally flush with the tubular envelope of the stent body within the side opening prior to expansion of said stent body; wherein said stent body comprises an axial spine, and said deflectable element is generally aligned with said axial spine.
Claim 14
Dependent Claim
131 words
A stent for placement in a bifurcated body lumen having a main branch and a side branch, said stent comprising: a radially expandable generally cylindrical stent body having proximal and distal opposing ends with a body wall having an even surface extending therebetween, said body wall having a plurality of cells, and a side opening therethrough, said side opening being multiple times the size of each of the cells prior to expansion of the stent body; and a deflectable element integrally formed with the stent body, wherein the deflectable element is generally flush with the tubular envelope of the stent body within the side opening prior to expansion of said stent body; wherein said stent body comprises an axial spine, and said deflectable element is generally aligned with said axial spine.
Claim 15
Independent Claim
71 words
A method for deploying a stent in a bifurcated body lumen, said method comprising, in order: providing a stent having a first portion, a second portion, and a side opening between said portions; expanding said first portion against a luminal wall segment on one side of the bifurcation; aligning the side opening with an ostium of the branch lumen; and expanding the second portion on the other side of the bifurcation.
Claim 16
Independent Claim
71 words
A method for deploying a stent in a bifurcated body lumen, said method comprising, in order: providing a stent having a first portion, a second portion, and a side opening between said portions; expanding said first portion against a luminal wall segment on one side of the bifurcation; aligning the side opening with an ostium of the branch lumen; and expanding the second portion on the other side of the bifurcation.
Claim 17
Independent Claim
71 words
A method for deploying a stent in a bifurcated body lumen, said method comprising, in order: providing a stent having a first portion, a second portion, and a side opening between said portions; aligning the side opening with an ostium of the branch lumen; expanding said first portion against a luminal wall segment on one side of the bifurcation; and expanding the second portion on the other side of the bifurcation.
Claim 18
Independent Claim
71 words
A method for deploying a stent in a bifurcated body lumen, said method comprising, in order: providing a stent having a first portion, a second portion, and a side opening between said portions; aligning the side opening with an ostium of the branch lumen; expanding said first portion against a luminal wall segment on one side of the bifurcation; and expanding the second portion on the other side of the bifurcation.
Claim 19
Dependent Claim
87 words
A stent for placement in a bifurcated body lumen, said stent comprising: a main tubular body having first and second portions, first and second ends, and a side opening between said ends; said first portion having a first axial spine, said first portion adapted to expand in response to a first radially outward pressure; said second portion having a second axial spine, said second portion adapted to expand in response to a second radially outward pressure; and wherein the first pressure is less than the second pressure.
Claim 20
Dependent Claim
87 words
A stent for placement in a bifurcated body lumen, said stent comprising: a main tubular body having first and second portions, first and second ends, and a side opening between said ends; said first portion having a first axial spine, said first portion adapted to expand in response to a first radially outward pressure; said second portion having a second axial spine, said second portion adapted to expand in response to a second radially outward pressure; and wherein the first pressure is less than the second pressure.
References Cited (Backward Citations)
US4140126A
Cited
US4413989A
Cited
US4503569A
Cited
US4739762B1
Cited
US4733665A
Cited
US4739762A
Cited
US4733665B1
Cited
US4733665C2
Cited
US4957508A
Cited
US5042976A
Cited
WO1988006026A2
Cited
US4872874A
Cited
US4769029A
Cited
US4957501A
Cited
US4994071A
Cited
US5104404A
Cited
US5531788A
Cited
US5061240A
Cited
US5102403A
Cited
US5064435A
Cited
US5413586A
Cited
US5489295A
Cited
US5304220A
Cited
US5456712A
Cited
US5387235A
Cited
US5693084A
Cited
US5562725A
Cited
US5913897A
Cited
US5639278A
Cited
US5723004A
Cited
US5409458A
Cited
US5443497A
Cited
US5607444A
Cited
US5562724A
Cited
US5545132A
Cited
US5718724A
Cited
US5693086A
Cited
US5716365A
Cited
US5800508A
Cited
US6039749A
Cited
US5972018A
Cited
US5733303A
Cited
US5449373A
Cited
US5824044A
Cited
US5653743A
Cited
US5507769A
Cited
US5643340A
Cited
US5906640A
Cited
US5613980A
Cited
US5522801A
Cited
US5632763A
Cited
US5755770A
Cited
US5634902A
Cited
US5575818A
Cited
US5676696A
Cited
US5709713A
Cited
US5707354A
Cited
US5613981A
Cited
US5593442A
Cited
WO1996041592A1
Cited
US5762631A
Cited
US5824036A
Cited
US5669924A
Cited
US5628788A
Cited
US5824040A
Cited
US5938682A
Cited
US5931895A
Cited
WO1997033532A2
Cited
US5755734A
Cited
US5755735A
Cited
EP0804907A2
Cited
US5827320A
Cited
US5669932A
Cited
WO1997045073A1
Cited
US5617878A
Cited
US5676697A
Cited
US5922020A
Cited
US5749825A
Cited
US5755778A
Cited
WO1998017204A2
Cited
US5720735A
Cited
WO1998035634A1
Cited
WO1998036709A1
Cited
US5897588A
Cited
WO1998044871A1
Cited
WO1998048733A1
Cited
EP0876805A2
Cited
US6048361A
Cited
WO1998052497A2
Cited
US5836966A
Cited
US6017363A
Cited
WO1999017680A1
Cited
US6013091A
Cited
US6030414A
Cited
US5961548A
Cited
US6036682A
Cited
WO1999039661A2
Cited
WO1999065419A1
Cited
WO2000000104A1
Cited
WO2000012166A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-12-03 | 2005-06-04 | 2005-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-12-03 | 2009-06-04 | 2009-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-12-03 | 2013-06-04 | 2013-12-04 | $7700.00 | Window Closed / Lapsed |