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Bifurcated stent and method for the manufacture and delivery of same
Assignee: Divysio Solutions ULC
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Filing: 1997-11-03
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Granted: 2000-03-07
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Expires: 2017-11-03
Abstract
Abstract An expandable bifurcated stent comprising a proximal end and a distal end in communication with one another. The proximal end comprises a primary passageway and the distal end comprises a pair of secondary passageways. The stent is expandable from a first, contracted position to a second, expanded position upon the application of a radially outward force exerted on the stent. Each of the primary passageway and the secondary passageway being constructed of has a porous surface. A method for production of a bifurcated stent is also described. Preferably, the method comprises the step of connecting a first stent section to a second stent section, the first stent section having an end thereof adapted for connection to an opening disposed along the length of a second stent section.
Inventors
- 👤 Ian M. Penn
- 👤 Donald R. Ricci
- 👤 George A. Shukov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:40
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/856; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61F2/02; A61F2/04; A61F2/06; A61F2002/065; A61F2002/91525; A61F2002/91533; A61F2002/9155; A61F2002/91575; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0008; A61F2250/00; A61F2250/0058; A61F2250/006
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
141 words
An expandable bifurcated stent having a longitudinal axis, the stent comprising a proximal end and a distal end in communication with one another, the proximal end comprising a primary passageway and the distal end comprising a pair of secondary passageways, each secondary passageway in communication with the primary passageway at a first intersection, the stent being expandable from a first, contracted position to a second, expanded position upon the application of a radially outward force exerted on the stent, the intersection comprising a circumferential region consisting of: (i) points of connection between the primary passageway and the secondary passageway, and (ii) an area of contacting overlap between the primary passageway and the secondary passageway, the primary passageway and the contacting area in the secondary passageway being moveable with respect to one another in a direction substantially parallel to the longitudinal axis.
Claim 2
Dependent Claim
141 words
An expandable bifurcated stent having a longitudinal axis, the stent comprising a proximal end and a distal end in communication with one another, the proximal end comprising a primary passageway and the distal end comprising a pair of secondary passageways, each secondary passageway in communication with the primary passageway at a first intersection, the stent being expandable from a first, contracted position to a second, expanded position upon the application of a radially outward force exerted on the stent, the intersection comprising a circumferential region consisting of: (i) points of connection between the primary passageway and the secondary passageway, and (ii) an area of contacting overlap between the primary passageway and the secondary passageway, the primary passageway and the contacting area in the secondary passageway being moveable with respect to one another in a direction substantially parallel to the longitudinal axis.
Claim 3
Dependent Claim
30 words
The bifurcated stent defined in claim 1, wherein the area of overlap is defined by a first area on the primary passageway and a second area on the secondary passageway.
Claim 4
Dependent Claim
17 words
The bifurcated stent defined in claim 2, wherein the first area is disposed within the second area.
Claim 5
Dependent Claim
17 words
The bifurcated stent defined in claim 2, wherein first area is defined by a substantially elongate tab.
Claim 6
Dependent Claim
26 words
The bifurcated stent defined in claim 4, wherein the substantially elongate tab has a head and a body, the head being radially wider than the body.
Claim 7
Dependent Claim
14 words
The bifurcated stent defined in claim 1, comprising at least two areas of overlap.
Claim 8
Dependent Claim
12 words
The bifurcated stent defined in claim 1, comprising two areas of overlap.
Claim 9
Dependent Claim
24 words
The bifurcated stent defined in claim 7, wherein the two areas of overlap are substantially diametrically opposed to one another in the circumferential region.
Claim 10
Dependent Claim
22 words
The bifurcated stent defined in claim 1, wherein the pair of secondary passageways are integrally connected to one another by a segment.
Claim 11
Dependent Claim
21 words
The bifurcated stent defined in claim 1, wherein the stent comprises a first stent section connected to a second stent section.
Claim 12
Independent Claim
69 words
A method for production of a bifurcated stent comprising the steps: cutting a portion of a circumference of a first stent section, the uncut portion of the circumference defining a connection tab; translating opposed ends of the first stent section toward one another to define a first opening along the length of the first stent section; and connecting a second stent section to first stent section at the opening.
Claim 13
Independent Claim
69 words
A method for production of a bifurcated stent comprising the steps: cutting a portion of a circumference of a first stent section, the uncut portion of the circumference defining a connection tab; translating opposed ends of the first stent section toward one another to define a first opening along the length of the first stent section; and connecting a second stent section to first stent section at the opening.
Claim 14
Dependent Claim
15 words
The method defined in claim 11, wherein the translating step comprises bending the connection tab.
Claim 15
Dependent Claim
21 words
The method defined in claim 11, wherein the cutting step comprises a non-linear radial cut to define a serrated first opening.
Claim 16
Dependent Claim
17 words
The method defined in claim 13, wherein the non-linear radial cut is a substantially sinusoidal radial cut.
Claim 17
Dependent Claim
16 words
The method defined in claim 13, wherein the non-linear cut is a substantially undulating radial cut.
Claim 18
Dependent Claim
29 words
The method defined in claim 11, wherein the connecting step comprises positioning the first stent section and the second section stent section to define an area of overlap therebetween.
Claim 19
Dependent Claim
27 words
The method defined in claim 16, wherein the connecting step comprises selectively connecting the first stent section to the second stent section in the area of overlap.
Claim 20
Dependent Claim
26 words
The method defined in claim 16, wherein said positioning comprises disposing the second stent section within the first stent section to define the area of overlap.
Claim 21
Dependent Claim
21 words
The method defined in claim 11, wherein the connecting step comprises welding the first stent section to the second stent section.
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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) | 2003-03-07 | 2003-09-06 | 2004-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-03-07 | 2007-09-06 | 2008-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-03-07 | 2011-09-06 | 2012-03-07 | $7700.00 | Window Closed / Lapsed |