Patent US7018401B1 successfully refreshed from Google Patents.
US7018401B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Woven intravascular devices and methods for making the same and apparatus for delivery of the same
Assignee: The University of Texas System
•
Filing: 2000-02-01
•
Granted: 2006-03-28
•
Expires: 2020-02-01
Abstract
Abstract Self-expandable, woven intravascular devices for use as stents (both straight and tapered), filters (both temporary and permanent) and occluders for insertion and implantation into a variety of anatomical structures. The devices may be formed from shape memory metals such as nitinol. The devices may also be formed from biodegradable materials. Delivery systems for the devices include two hollow tubes that operate coaxially. A device is secured to the tubes prior to the implantation and delivery of the device by securing one end of the device to the outside of the inner tube and by securing the other end of the device to the outside of the outer tube. The stents may be partially or completely covered by graft materials, but may also be bare. The devices may be formed from a single wire. The devices may be formed by either hand or machine weaving. The devices may be created by bending shape memory wires around tabs projecting from a template, and weaving the ends of the wires to create the body of the device such that the wires cross each other to form a plurality of angles, at least one of the angles being obtuse. The value of the obtuse angle may be increased by axially compressing the body.
Inventors
- 👤 Hideki Hyodoh
- 👤 Andras Konya
- 👤 Kenneth C. Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:20
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/88; A61F2/01; A61F2/0105; A61F2/0108; A61F2/011; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/90; D; D04; D04C; D04C1/00; D04C1/06; D04C3/00; D04C3/48; A61B; A61B17/00; A61B2017/00526; A61F2/95; A61F2/962; A61F2002/016; A61F2002/018; A61F2002/075; A61F2002/077; A61F2002/9505; A61F2002/9511; A61F2210/00; A61F2210/0004; A61F2210/0014; A61F2220/00; A61F2220/0008; A61F2220/0016; A61F2220/0025; A61F2220/005; A61F2220/0058; A61F2220/0075; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61F2230/001; A61F2230/0015; A61F2230/0063; A61F2230/0065; A61F2230/0067; A61F2230/0069; A61F2230/0073; A61F2230/0076; A61F2230/0078; A61F2230/008; A61F2230/0091; A61F2230/0093; A61F2250/00; A61F2250/0014; A61F2250/0039; D10; D10B; D10B2509/00; D10B2509/06
Claims Analysis
Total Claims: 84
Claim 1
Independent Claim
103 words
A device comprising: a plurality of shape memory wires woven together to form a body suitable for implantation into an anatomical structure, the body having first and second ends, the shape memory wires crossing each other to form a plurality of cells and a plurality of angles, at least one of the angles being obtuse, at least one of the cells being defined by only four sides, and both ends of at least one shape memory wire being located proximate one end of the body, wherein the value of the at least one obtuse angle may be increased by axially compressing the body.
Claim 2
Independent Claim
103 words
A device comprising: a plurality of shape memory wires woven together to form a body suitable for implantation into an anatomical structure, the body having first and second ends, the shape memory wires crossing each other to form a plurality of cells and a plurality of angles, at least one of the angles being obtuse, at least one of the cells being defined by only four sides, and both ends of at least one shape memory wire being located proximate one end of the body, wherein the value of the at least one obtuse angle may be increased by axially compressing the body.
Claim 3
Dependent Claim
13 words
The device of claim 1 , wherein the shape memory wires comprise nitinol.
Claim 4
Dependent Claim
16 words
The device of claim 1 , wherein the shape memory wires comprise FePt, FePd or FeNiCoTi.
Claim 5
Dependent Claim
16 words
The device of claim 1 , wherein the shape memory wires comprise FeNiC, FeMnSi or FeMnSiCrNi.
Claim 6
Dependent Claim
26 words
The device of claim 1 , wherein the shape memory wires each have a diameter ranging in size from about 0.006 inches to about 0.012 inches.
Claim 7
Dependent Claim
20 words
The device of claim 1 , wherein the plurality of shape memory wires includes at least 6 shape memory wires.
Claim 8
Dependent Claim
18 words
The device of claim 1 , wherein the body has a tubular shape with a substantially uniform diameter.
Claim 9
Dependent Claim
31 words
The device of claim 1 , wherein the body has a tapered shape with a diameter that decreases from one end of the body to the other end of the body.
Claim 10
Dependent Claim
14 words
The device of claim 1 , wherein the body has a generally hourglass shape.
Claim 11
Dependent Claim
12 words
The device of claim 1 , wherein the body is hand woven.
Claim 12
Dependent Claim
12 words
The device of claim 1 , wherein the body is machine woven.
Claim 13
Dependent Claim
15 words
The device of claim 1 , further comprising a graft material attached to the body.
Claim 14
Dependent Claim
13 words
The device of claim 12 , wherein the graft material comprises woven polyester.
Claim 15
Dependent Claim
12 words
The device of claim 12 , wherein the graft material comprises Dacron.
Claim 16
Dependent Claim
12 words
The device of claim 12 , wherein the graft material comprises polyurethane.
Claim 17
Dependent Claim
12 words
The device of claim 12 , wherein the graft material comprises PTFE.
Claim 18
Dependent Claim
14 words
The device of claim 12 , wherein the graft material partially covers the body.
Claim 19
Dependent Claim
28 words
The device of claim 1 , further comprising: a first tube configured to accept a guide wire; and a second tube configured to fit over the first tube.
Claim 20
Dependent Claim
40 words
The device of claim 18 , wherein the second tube is placed over the first tube, one end of the body is secured to the first tube and the other end of the body is secured to the second tube.
Claim 21
Independent Claim
144 words
A device comprising: a body suitable for implantation into an anatomical structure, the body having a first end, a second end and being defined by at least n shape memory wires, wherein n is greater than one, the n shape memory wires being arranged such that the body comprises a first portion, the first portion comprising a first woven portion and at least one strut, the shape memory wires of the first woven portion crossing each other to form a plurality of cells and a plurality of angles, at least one of the angles being obtuse, at least one of the cells being defined by only four sides, and both ends of at least one shape memory wire being located proximate one end of the body; wherein the value of the at least one obtuse angle may be increased by axially compressing the body.
Claim 22
Independent Claim
144 words
A device comprising: a body suitable for implantation into an anatomical structure, the body having a first end, a second end and being defined by at least n shape memory wires, wherein n is greater than one, the n shape memory wires being arranged such that the body comprises a first portion, the first portion comprising a first woven portion and at least one strut, the shape memory wires of the first woven portion crossing each other to form a plurality of cells and a plurality of angles, at least one of the angles being obtuse, at least one of the cells being defined by only four sides, and both ends of at least one shape memory wire being located proximate one end of the body; wherein the value of the at least one obtuse angle may be increased by axially compressing the body.
Claim 23
Dependent Claim
13 words
The device of claim 20 , wherein the shape memory wires comprise nitinol.
Claim 24
Dependent Claim
16 words
The device of claim 20 , wherein the shape memory wires comprise FePt, FePd or FeNiCoTi.
Claim 25
Dependent Claim
16 words
The device of claim 20 , wherein the shape memory wires comprise FeNiC, FeMnSi or FeMnSiCrNi.
Claim 26
Dependent Claim
41 words
The device of claim 20 , wherein the body further comprises a second portion adjacent the first portion, the second portion comprising a second woven portion, and the second portion having n+x shape memory wires, wherein x is at least one.
Claim 27
Dependent Claim
25 words
The device of claim 20 , wherein the first portion comprises a first woven portion separated from a second woven portion by multiple first struts.
Claim 28
Dependent Claim
15 words
The device of claim 25 , wherein the first portion has a generally domed shape.
Claim 29
Dependent Claim
38 words
The device of claim 25 , wherein the first woven portion has a generally domed shape and the multiple first struts are bent slightly so as to increase the self-anchoring capability of the body in an anatomical structure.
Claim 30
Dependent Claim
38 words
The device of claim 25 , wherein the first portion further comprises a third woven portion separated from the second woven portion by multiple second struts, and wherein the first and third woven portions have generally domed shapes.
Claim 31
Dependent Claim
15 words
The device of claim 20 , further comprising a graft material attached to the body.
Claim 32
Dependent Claim
13 words
The device of claim 29 , wherein the graft material comprises woven polyester.
Claim 33
Dependent Claim
12 words
The device of claim 29 , wherein the graft material comprises Dacron.
Claim 34
Dependent Claim
12 words
The device of claim 29 , wherein the graft material comprises polyurethane.
Claim 35
Dependent Claim
12 words
The device of claim 29 , wherein the graft material comprises PTFE.
Claim 36
Dependent Claim
14 words
The device of claim 29 , wherein the graft material partially covers the body.
Claim 37
Dependent Claim
28 words
The device of claim 20 , further comprising: a first tube configured to accept a guide wire; and a second tube configured to fit over the first tube.
Claim 38
Dependent Claim
40 words
The device of claim 35 , wherein the second tube is placed over the first tube, one end of the body is secured to the first tube and the other end of the body is secured to the second tube.
Claim 39
Dependent Claim
103 words
An occluding system comprising: a plurality of shape memory wires woven together to form a body useful for occluding an anatomical structure, the body having first and second ends, both ends of at least one shape memory wire being located proximate one end of the body, the shape memory wires crossing each other to form a plurality of cells and a plurality of angles, at least one of the angles being obtuse, and at least one of the cells being defined by only four sides; wherein the value of the at least one obtuse angle may be increased by axially compressing the body.
Claim 40
Dependent Claim
103 words
An occluding system comprising: a plurality of shape memory wires woven together to form a body useful for occluding an anatomical structure, the body having first and second ends, both ends of at least one shape memory wire being located proximate one end of the body, the shape memory wires crossing each other to form a plurality of cells and a plurality of angles, at least one of the angles being obtuse, and at least one of the cells being defined by only four sides; wherein the value of the at least one obtuse angle may be increased by axially compressing the body.
Claim 41
Independent Claim
87 words
A device comprising: a body suitable for implantation into an anatomical structure, the body having a first end and a second end, wherein the body comprises a shape memory wire having a first segment and a second segment, the segments being separated by a bend in the wire located proximate one end of the body, the first segment and second segments being arranged to form loops and twisted segments such that at least two contiguous substantially closed loops are separated from another loop by a twisted segment.
Claim 42
Independent Claim
87 words
A device comprising: a body suitable for implantation into an anatomical structure, the body having a first end and a second end, wherein the body comprises a shape memory wire having a first segment and a second segment, the segments being separated by a bend in the wire located proximate one end of the body, the first segment and second segments being arranged to form loops and twisted segments such that at least two contiguous substantially closed loops are separated from another loop by a twisted segment.
Claim 43
Independent Claim
92 words
A device comprising: a body suitable for implantation into an anatomical structure, the body having two ends and comprising a shape memory wire having a first segment and a second segment, the segments being separated by a bend in the wire located proximate one end of the body, the segments being secured to each other in loop-defining locations, the segments also extending between the loop-defining locations in spaced relation to each other so as form at least two loops, at least one of the at least two loops having a compressed shape.
Claim 44
Independent Claim
92 words
A device comprising: a body suitable for implantation into an anatomical structure, the body having two ends and comprising a shape memory wire having a first segment and a second segment, the segments being separated by a bend in the wire located proximate one end of the body, the segments being secured to each other in loop-defining locations, the segments also extending between the loop-defining locations in spaced relation to each other so as form at least two loops, at least one of the at least two loops having a compressed shape.
Claim 45
Independent Claim
79 words
A device comprising: a plurality of shape memory wires woven together to form a body suitable for implantation into an anatomical structure, the body having a first end, a second end, and an intersection of two shape memory wires crossed in non-interlocking fashion; where both ends of at least one shape memory wire are located proximate one end of the body, and the two crossed wires form an obtuse angle that may be increased by axially compressing the body.
Claim 46
Independent Claim
79 words
A device comprising: a plurality of shape memory wires woven together to form a body suitable for implantation into an anatomical structure, the body having a first end, a second end, and an intersection of two shape memory wires crossed in non-interlocking fashion; where both ends of at least one shape memory wire are located proximate one end of the body, and the two crossed wires form an obtuse angle that may be increased by axially compressing the body.
Claim 47
Dependent Claim
13 words
The device of claim 40 , where the shape memory wires comprise nitinol.
Claim 48
Dependent Claim
16 words
The device of claim 40 , where the shape memory wires comprise FePt, FePd or FeNiCoTi.
Claim 49
Dependent Claim
16 words
The device of claim 40 , where the shape memory wires comprise FeNiC, FeMnSi or FeMnSiCrNi.
Claim 50
Dependent Claim
26 words
The device of claim 40 , where the shape memory wires each have a diameter ranging in size from about 0.006 inches to about 0.012 inches.
Claim 51
Dependent Claim
20 words
The device of claim 40 , where the plurality of shape memory wires includes at least 6 shape memory wires.
Claim 52
Dependent Claim
18 words
The device of claim 40 , where the body has a tubular shape with a substantially uniform diameter.
Claim 53
Dependent Claim
31 words
The device of claim 40 , where the body has a tapered shape with a diameter that decreases from one end of the body to the other end of the body.
Claim 54
Dependent Claim
14 words
The device of claim 40 , where the body has a generally hourglass shape.
Claim 55
Dependent Claim
12 words
The device of claim 40 , where the body is hand woven.
Claim 56
Dependent Claim
12 words
The device of claim 40 , where the body is machine woven.
Claim 57
Dependent Claim
15 words
The device of claim 40 , further comprising a graft material attached to the body.
Claim 58
Dependent Claim
13 words
The device of claim 51 , where the graft material comprises woven polyester.
Claim 59
Dependent Claim
12 words
The device of claim 51 , where the graft material comprises Dacron.
Claim 60
Dependent Claim
12 words
The device of claim 51 , where the graft material comprises polyurethane.
Claim 61
Dependent Claim
12 words
The device of claim 51 , where the graft material comprises PTFE.
Claim 62
Dependent Claim
14 words
The device of claim 51 , where the graft material partially covers the body.
Claim 63
Dependent Claim
28 words
The device of claim 40 , further comprising: a first tube configured to accept a guide wire; and a second tube configured to fit over the first tube.
Claim 64
Dependent Claim
40 words
The device of claim 57 , where the second tube is placed over the first tube, one end of the body is secured to the first tube and the other end of the body is secured to the second tube.
Claim 65
Independent Claim
84 words
A device comprising: a plurality of shape memory wires woven together to form a body suitable for implantation into an anatomical structure, the body having a first end, a second end, a middle, and an intersection of two shape memory wires crossed in non-interlocking fashion; where both ends of at least one shape memory wire are located nearer one end of the body than the middle, and the two crossed wires form an obtuse angle that may be increased by axially compressing the body.
Claim 66
Independent Claim
84 words
A device comprising: a plurality of shape memory wires woven together to form a body suitable for implantation into an anatomical structure, the body having a first end, a second end, a middle, and an intersection of two shape memory wires crossed in non-interlocking fashion; where both ends of at least one shape memory wire are located nearer one end of the body than the middle, and the two crossed wires form an obtuse angle that may be increased by axially compressing the body.
Claim 67
Dependent Claim
13 words
The device of claim 59 , where the shape memory wires comprise nitinol.
Claim 68
Dependent Claim
16 words
The device of claim 59 , where the shape memory wires comprise FePt, FePd or FeNiCoTi.
Claim 69
Dependent Claim
16 words
The device of claim 59 , where the shape memory wires comprise FeNiC, FeMnSi or FeMnSiCrNi.
Claim 70
Dependent Claim
26 words
The device of claim 59 , where the shape memory wires each have a diameter ranging in size from about 0.006 inches to about 0.012 inches.
Claim 71
Dependent Claim
20 words
The device of claim 59 , where the plurality of shape memory wires includes at least 6 shape memory wires.
Claim 72
Dependent Claim
18 words
The device of claim 59 , where the body has a tubular shape with a substantially uniform diameter.
Claim 73
Dependent Claim
31 words
The device of claim 59 , where the body has a tapered shape with a diameter that decreases from one end of the body to the other end of the body.
Claim 74
Dependent Claim
14 words
The device of claim 59 , where the body has a generally hourglass shape.
Claim 75
Dependent Claim
12 words
The device of claim 59 , where the body is hand woven.
Claim 76
Dependent Claim
12 words
The device of claim 59 , where the body is machine woven.
Claim 77
Dependent Claim
15 words
The device of claim 59 , further comprising a graft material attached to the body.
Claim 78
Dependent Claim
13 words
The device of claim 70 , where the graft material comprises woven polyester.
Claim 79
Dependent Claim
12 words
The device of claim 70 , where the graft material comprises Dacron.
Claim 80
Dependent Claim
12 words
The device of claim 70 , where the graft material comprises polyurethane.
Claim 81
Dependent Claim
12 words
The device of claim 70 , where the graft material comprises PTFE.
Claim 82
Dependent Claim
14 words
The device of claim 70 , where the graft material partially covers the body.
Claim 83
Dependent Claim
28 words
The device of claim 59 , further comprising: a first tube configured to accept a guide wire; and a second tube configured to fit over the first tube.
Claim 84
Dependent Claim
40 words
The device of claim 76 , where the second tube is placed over the first tube, one end of the body is secured to the first tube and the other end of the body is secured to the second tube.
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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) | 2009-03-27 | 2009-09-26 | 2010-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-03-27 | 2013-09-26 | 2014-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-03-27 | 2017-09-26 | 2018-03-28 | $7700.00 | Window Closed / Lapsed |