US5948016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intravascular stent with non-parallel slots
Assignee: Boston Scientific Scimed Inc
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Filing: 1997-09-25
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Granted: 1999-09-07
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Expires: 2017-09-25
Abstract
Abstract A stent in a non-expanded state includes a first expansion column having a plurality of first expansion column slots that are formed of a plurality of first expansion struts. Substantially each first column expansion slot has a longitudinal axis. A second expansion column has a plurality of second expansion column slots that are formed of a plurality of second expansion struts. Substantially each second expansion column strut has a longitudinal axis. A first connecting strut column is formed of a plurality of first connecting struts. The first connecting strut column couples the first expansion column to the second expansion column. The first expansion column, second expansion column and the first connecting strut column form a first tubular structure with a longitudinal axis. The longitudinal axis of the first expansion column slots is non-parallel to the longitudinal axis of the first tubular structure.
Inventors
- 👤 G. David Jang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:09
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61F2002/91525; A61F2002/91533; A61F2002/9155; A61F2002/91558; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0013
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
179 words
A stent in a non-expanded state, comprising: a first expansion column including a plurality of first expansion column slots formed of a plurality of first expansion struts, each of a first expansion strut being coupled to an adjacent first expansion strut by a substantially linear joining strut, the first expansion column slots having a longitudinal axis; a second expansion column including a plurality of second expansion column slots formed of a plurality of second expansion struts, each of a second expansion strut being coupled to an adjacent second expansion strut by a substantially linear joining strut, the second expansion column slots having a longitudinal axis; and a first connecting strut column formed of a plurality of first connecting struts, the first connecting strut column coupling the first expansion column to the second expansion column, wherein the first expansion column, the second expansion column and the first connecting strut column form a first tubular structure with a longitudinal axis, and the longitudinal axis of the first expansion column slots is non-parallel to the longitudinal axis of the first tubular structure.
Claim 2
Dependent Claim
179 words
A stent in a non-expanded state, comprising: a first expansion column including a plurality of first expansion column slots formed of a plurality of first expansion struts, each of a first expansion strut being coupled to an adjacent first expansion strut by a substantially linear joining strut, the first expansion column slots having a longitudinal axis; a second expansion column including a plurality of second expansion column slots formed of a plurality of second expansion struts, each of a second expansion strut being coupled to an adjacent second expansion strut by a substantially linear joining strut, the second expansion column slots having a longitudinal axis; and a first connecting strut column formed of a plurality of first connecting struts, the first connecting strut column coupling the first expansion column to the second expansion column, wherein the first expansion column, the second expansion column and the first connecting strut column form a first tubular structure with a longitudinal axis, and the longitudinal axis of the first expansion column slots is non-parallel to the longitudinal axis of the first tubular structure.
Claim 3
Dependent Claim
25 words
The stent of claim 1, wherein the longitudinal axis of the second expansion slots is non-parallel to the longitudinal axis of the first tubular structure.
Claim 4
Dependent Claim
31 words
The stent of claim 1, wherein the longitudinal axis of the slots in the first expansion column is parallel to the longitudinal axis of the slots in the second expansion column.
Claim 5
Dependent Claim
22 words
The stent of claim 1, wherein at least one first connecting strut connects the first expansion column to the second expansion column.
Claim 6
Dependent Claim
36 words
The stent of claim 1, wherein a width of a first expansion column slot of the first expansion column is different from a width of a second adjacent expansion column slot of the first expansion column.
Claim 7
Dependent Claim
28 words
The stent of claim 1, wherein at least a portion of the substantially linear joining struts in the first and second expansion columns has a curved proximal end.
Claim 8
Dependent Claim
28 words
The stent of claim 1, wherein at least a portion of the substantially linear joining struts in the first and second expansion columns has a curved distal end.
Claim 9
Dependent Claim
33 words
The stent of claim 1, wherein at least a portion of the substantially linear joining struts in the first and second expansion columns has a curved proximal end and a curved distal end.
Claim 10
Dependent Claim
31 words
The stent of claim 1, wherein a longitudinal axis of the first connecting struts of the first connecting strut column is non-parallel to the longitudinal axis of the first tubular structure.
Claim 11
Dependent Claim
179 words
A slotted stent in a non-expanded state, comprising: a first expansion column including a plurality of parallel first expansion column slots formed of a plurality of first expansion struts, the first expansion column slots having a longitudinal axis; a second expansion column including a plurality of parallel second expansion column slots formed of a plurality of second, expansion struts, the second expansion column slots having a longitudinal axis; and a first connecting strut column formed of a plurality of first connecting struts, the first connecting strut column coupling the first expansion column to the second expansion column, wherein the first expansion column, the second expansion column and the first connecting strut column form a first tubular structure with a longitudinal axis and a plurality of closed geometric cells formed by adjacent first expansion struts, adjacent second expansion struts and adjacent first connecting struts, at least a portion of the plurality of closed geometric cells being asymmetrical closed geometric cells, the longitudinal axis of the first expansion column slots being non-parallel to the longitudinal axis of the first tubular structure.
Claim 12
Dependent Claim
179 words
A slotted stent in a non-expanded state, comprising: a first expansion column including a plurality of parallel first expansion column slots formed of a plurality of first expansion struts, the first expansion column slots having a longitudinal axis; a second expansion column including a plurality of parallel second expansion column slots formed of a plurality of second, expansion struts, the second expansion column slots having a longitudinal axis; and a first connecting strut column formed of a plurality of first connecting struts, the first connecting strut column coupling the first expansion column to the second expansion column, wherein the first expansion column, the second expansion column and the first connecting strut column form a first tubular structure with a longitudinal axis and a plurality of closed geometric cells formed by adjacent first expansion struts, adjacent second expansion struts and adjacent first connecting struts, at least a portion of the plurality of closed geometric cells being asymmetrical closed geometric cells, the longitudinal axis of the first expansion column slots being non-parallel to the longitudinal axis of the first tubular structure.
Claim 13
Dependent Claim
31 words
The stent of claim 10, wherein a longitudinal axis of the first connecting struts of the first connecting strut column is non-parallel to the longitudinal axis of the first tubular structure.
Claim 14
Dependent Claim
27 words
The stent of claim 10, wherein the longitudinal axis of the first expansion column slots is parallel to the longitudinal axis of the second expansion column slots.
Claim 15
Dependent Claim
25 words
The stent of claim 10, wherein the longitudinal axis of the second expansion slots is non-parallel to the longitudinal axis of the first tubular structure.
Claim 16
Dependent Claim
22 words
The stent of claim 10, wherein at least one first connecting strut connects the first expansion column to the second expansion column.
Claim 17
Dependent Claim
36 words
The stent of claim 10, wherein a width of a first expansion column slot of the first expansion column is different from a width of a second adjacent expansion column slot of the first expansion column.
Claim 18
Dependent Claim
192 words
A stent assembly, comprising: a balloon; and an unexpanded stent mounted at an exterior of the balloon, the stent including a first expansion column including a plurality of first expansion column slots formed of a plurality of first expansion struts, the first expansion column slots having a longitudinal axis, each of a first expansion strut being coupled to an adjacent first expansion strut by a substantially linear joining strut; a second expansion column including a plurality of second expansion column slots formed of a plurality of second expansion struts, the second expansion column slots having a longitudinal axis each of a second expansion strut being coupled to an adjacent second expansion strut by a substantially linear joining strut; a first connecting strut column formed of a plurality of first connecting struts, the first connecting strut column coupling the first expansion column to the second expansion column, wherein the first expansion column, the second expansion column and the first connecting strut column form a first tubular structure with a longitudinal axis that is non-parallel to the longitudinal axis of the first expansion column slots prior to the stent being mounted on the balloon.
Claim 19
Dependent Claim
192 words
A stent assembly, comprising: a balloon; and an unexpanded stent mounted at an exterior of the balloon, the stent including a first expansion column including a plurality of first expansion column slots formed of a plurality of first expansion struts, the first expansion column slots having a longitudinal axis, each of a first expansion strut being coupled to an adjacent first expansion strut by a substantially linear joining strut; a second expansion column including a plurality of second expansion column slots formed of a plurality of second expansion struts, the second expansion column slots having a longitudinal axis each of a second expansion strut being coupled to an adjacent second expansion strut by a substantially linear joining strut; a first connecting strut column formed of a plurality of first connecting struts, the first connecting strut column coupling the first expansion column to the second expansion column, wherein the first expansion column, the second expansion column and the first connecting strut column form a first tubular structure with a longitudinal axis that is non-parallel to the longitudinal axis of the first expansion column slots prior to the stent being mounted on the balloon.
Claim 20
Dependent Claim
26 words
The stent assembly of claim 16, wherein the longitudinal axis of the second expansion slots is non-parallel to the longitudinal axis of the first tubular structure.
Claim 21
Dependent Claim
23 words
The stent assembly of claim 16, wherein at least one first connecting strut connects the first expansion column to the second expansion column.
Claim 22
Dependent Claim
17 words
The stent assembly of claim 16, wherein the balloon has a tapered geometry in an expanded state.
Claim 23
Dependent Claim
24 words
The stent assembly of claim 16, wherein the balloon is curved extending from a proximal end and a distal end in an expanded state.
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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) | 2002-09-06 | 2003-03-08 | 2003-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-09-06 | 2007-03-08 | 2007-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-09-06 | 2011-03-08 | 2011-09-07 | $7700.00 | Window Closed / Lapsed |