US20030149475A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods for creating woven devices
Assignee: Individual
•
Filing: 2002-09-16
•
Granted: —
•
Expires: 2022-09-16
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 Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:50
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/88; A61F2/01; A61F2/0105; A61F2/0108; 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; A61F2/011; 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: 81
Claim 1
Independent Claim
88 words
1 . 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 angles, at least one of the angles being obtuse, 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
Dependent Claim
88 words
1 . 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 angles, at least one of the angles being obtuse, 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
15 words
2 . The device of claim 1 , wherein the shape memory wires comprise nitinol.
Claim 4
Dependent Claim
18 words
3 . The device of claim 1 , wherein the shape memory wires comprise FePt, FePd or FeNiCoTi.
Claim 5
Dependent Claim
18 words
4 . The device of claim 1 , wherein the shape memory wires comprise FeNiC, FeMnSi or FeMnSiCrNi.
Claim 6
Dependent Claim
28 words
5 . 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
22 words
6 . The device of claim 1 , wherein the plurality of shape memory wires includes at least 6 shape memory wires.
Claim 8
Dependent Claim
20 words
7 . The device of claim 1 , wherein the body has a tubular shape with a substantially uniform diameter.
Claim 9
Dependent Claim
33 words
8 . 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
16 words
9 . The device of claim 1 , wherein the body has a generally hourglass shape.
Claim 11
Dependent Claim
14 words
10 . The device of claim 1 , wherein the body is hand woven.
Claim 12
Dependent Claim
14 words
11 . The device of claim 1 , wherein the body is machine woven.
Claim 13
Dependent Claim
17 words
12 . The device of claim 1 , further comprising a graft material attached to the body.
Claim 14
Dependent Claim
15 words
13 . The device of claim 12 , wherein the graft material comprises woven polyester.
Claim 15
Dependent Claim
14 words
14 . The device of claim 12 , wherein the graft material comprises Dacron.
Claim 16
Dependent Claim
14 words
15 . The device of claim 12 , wherein the graft material comprises polyurethane.
Claim 17
Dependent Claim
14 words
16 . The device of claim 12 , wherein the graft material comprises PTFE.
Claim 18
Dependent Claim
16 words
17 . The device of claim 12 , wherein the graft material partially covers the body.
Claim 19
Dependent Claim
30 words
18 . 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
42 words
19 . 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
Dependent Claim
128 words
20 . 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 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 angles, at least one of the angles being obtuse, 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
Dependent Claim
128 words
20 . 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 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 angles, at least one of the angles being obtuse, 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
15 words
21 . The device of claim 20 , wherein the shape memory wires comprise nitinol.
Claim 24
Dependent Claim
18 words
22 . The device of claim 20 , wherein the shape memory wires comprise FePt, FePd or FeNiCoTi.
Claim 25
Dependent Claim
17 words
23 . The device of claim 2 wherein the shape memory wires comprise FeNiC, FeMnSi or FeMnSiCrNi.
Claim 26
Dependent Claim
43 words
24 . 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
27 words
25 . 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
17 words
26 . The device of claim 25 , wherein the first portion has a generally domed shape.
Claim 29
Dependent Claim
40 words
27 . 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
40 words
28 . 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
17 words
29 . The device of claim 20 , further comprising a graft material attached to the body.
Claim 32
Dependent Claim
15 words
30 . The device of claim 20 , wherein the graft material comprises woven polyester.
Claim 33
Dependent Claim
14 words
31 . The device of claim 29 , wherein the graft material comprises Dacron.
Claim 34
Dependent Claim
14 words
32 . The device of claim 29 , wherein the graft material comprises polyurethane.
Claim 35
Dependent Claim
14 words
33 . The device of claim 29 , wherein the graft material comprises PTFE.
Claim 36
Dependent Claim
16 words
34 . The device of claim 29 , wherein the graft material partially covers the body.
Claim 37
Dependent Claim
30 words
35 . 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
42 words
36 . 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
71 words
37 . A device comprising: a plurality of biodegradable filaments woven together to form a self-expanding body suitable for implantation into an anatomical structure, the self-expanding body having first and second ends, the biodegradable filaments crossing each other to form a plurality of angles, at least one of the angles being obtuse; wherein the value of the at least one obtuse angle may be increased by axially compressing the self-expanding body.
Claim 40
Dependent Claim
71 words
37 . A device comprising: a plurality of biodegradable filaments woven together to form a self-expanding body suitable for implantation into an anatomical structure, the self-expanding body having first and second ends, the biodegradable filaments crossing each other to form a plurality of angles, at least one of the angles being obtuse; wherein the value of the at least one obtuse angle may be increased by axially compressing the self-expanding body.
Claim 41
Dependent Claim
117 words
38 . A method of creating a body suitable for implantation into an anatomical structure, the body having two ends, the method comprising: bending the shape memo wires in a plurality of shape memory wires to create bent portions in the shape memory wires, the bent portions being arranged to define one end of the body, each shape memory wire having two ends; and weaving the ends of the shape memory wires to create the body such that the shape memory wires cross each other to form a plurality of angles, at least one of the angles being obtuse; wherein the value of the at least one obtuse angle may be increased by axially compressing the body.
Claim 42
Dependent Claim
117 words
38 . A method of creating a body suitable for implantation into an anatomical structure, the body having two ends, the method comprising: bending the shape memo wires in a plurality of shape memory wires to create bent portions in the shape memory wires, the bent portions being arranged to define one end of the body, each shape memory wire having two ends; and weaving the ends of the shape memory wires to create the body such that the shape memory wires cross each other to form a plurality of angles, at least one of the angles being obtuse; wherein the value of the at least one obtuse angle may be increased by axially compressing the body.
Claim 43
Dependent Claim
14 words
39 . The method of claim 38 , wherein the bent portions are bends.
Claim 44
Dependent Claim
14 words
40 . The method of claim 38 , wherein the bent portions are loops.
Claim 45
Dependent Claim
15 words
41 . The method of claim 38 , wherein the shape memory wires comprise nitinol.
Claim 46
Dependent Claim
18 words
42 . The method of claim 38 , wherein the shape memory wires comprise FePt, FePd or FeNiCoTi.
Claim 47
Dependent Claim
18 words
43 . The method of claim 38 , wherein the shape memory wires comprise FeNiC, FeMnSi or FeMnSiCrNi.
Claim 48
Dependent Claim
28 words
44 . The method of claim 38 , wherein the shape memory wires each have a diameter ranging in size from about 0.006 inches to about 0.012 inches.
Claim 49
Dependent Claim
22 words
45 . The method of claim 38 , wherein the plurality of shape memory wires includes at least 6 shape memory wires.
Claim 50
Dependent Claim
20 words
46 . The method of claim 38 , wherein the body has a tubular shape with a substantially uniform diameter.
Claim 51
Dependent Claim
33 words
47 . The method of claim 38 , 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 52
Dependent Claim
16 words
48 . The method of claim 38 , wherein the body has a generally hourglass shape.
Claim 53
Dependent Claim
14 words
49 . The method of claim 38 , wherein the weaving is by hand.
Claim 54
Dependent Claim
14 words
50 . The method of claim 38 , wherein the weaving is by machine.
Claim 55
Dependent Claim
128 words
51 . A method of creating a body suitable for implantation into an anatomical structure, the body having two ends, the method comprising: providing a weaving system comprising: a template having first template projections; bending shape memory wires around the first template projections to create bent portions in the shape memory wires, the bent portions being arranged to define one end of the body, each shape memory wire having two ends; and weaving the ends of the shape memory wires around the template to create the body such that the shape memory wires cross each other to form a plurality of angles, at least one of the angles being obtuse; wherein the value of the at least one obtuse angle may be increased by axially compressing the body.
Claim 56
Dependent Claim
128 words
51 . A method of creating a body suitable for implantation into an anatomical structure, the body having two ends, the method comprising: providing a weaving system comprising: a template having first template projections; bending shape memory wires around the first template projections to create bent portions in the shape memory wires, the bent portions being arranged to define one end of the body, each shape memory wire having two ends; and weaving the ends of the shape memory wires around the template to create the body such that the shape memory wires cross each other to form a plurality of angles, at least one of the angles being obtuse; wherein the value of the at least one obtuse angle may be increased by axially compressing the body.
Claim 57
Dependent Claim
15 words
52 . The method of claim 51 , wherein the first template projections comprise tabs.
Claim 58
Dependent Claim
15 words
53 . The method of claim 51 , wherein the first template projections comprise pins.
Claim 59
Dependent Claim
20 words
54 . The method of claim 53 , wherein the pins are attached to a ring engaged with the template.
Claim 60
Dependent Claim
28 words
55 . The method of claim 51 , wherein the weaving system further comprises a first weaving plate configured to rotate in a first direction during the weaving.
Claim 61
Dependent Claim
39 words
56 . The method of claim 51 , wherein the weaving system further, comprises first bobbins arranged on the first weaving plate, one end of each shape memory wire being attached to each first bobbin prior to the weaving.
Claim 62
Dependent Claim
40 words
57 . The method of claim 55 , wherein the weaving system further comprises a second weaving plate configured to rotate in a second direction during the weaving, the second weaving plate being spaced apart from the first weaving plate.
Claim 63
Dependent Claim
39 words
58 . The method of claim 57 , wherein the weaving system further comprises second bobbins arranged on the second weaving plate, one end of each shape memory wire being attached to each second bobbin prior to the weaving.
Claim 64
Dependent Claim
18 words
59 . The method of claim 51 , further comprising securing the shape memory wires to the template.
Claim 65
Dependent Claim
34 words
60 . The method of claim 51 , further comprising forming closed structures with the ends of the shape memory wires, the closed structures being arranged to define the other end of the body.
Claim 66
Dependent Claim
16 words
61 . The method of claim 51 , further comprising heating the body and the template.
Claim 67
Dependent Claim
96 words
62 . A device for delivering an axially and radially expandable woven body having two ends into an anatomical structure, comprising: a first tube configured to accept a guide wire; and a second tube configured to fit over the first tube; wherein when the tubes are used for delivering the axially and radially expandable woven body, one end of the axially and radially expandable woven body is secured to the outside of the first tube and the other end of the axially and radially expandable woven body is secured to the outside of the second tube.
Claim 68
Dependent Claim
96 words
62 . A device for delivering an axially and radially expandable woven body having two ends into an anatomical structure, comprising: a first tube configured to accept a guide wire; and a second tube configured to fit over the first tube; wherein when the tubes are used for delivering the axially and radially expandable woven body, one end of the axially and radially expandable woven body is secured to the outside of the first tube and the other end of the axially and radially expandable woven body is secured to the outside of the second tube.
Claim 69
Dependent Claim
21 words
63 . The device of claim 62 , further comprising a guide wire configured to be placed within the first tube.
Claim 70
Dependent Claim
23 words
64 . The device of claim 62 , further comprising push-button release/lock mechanism configured to secure the first tube to the second tube.
Claim 71
Dependent Claim
29 words
65 . The device of claim 62 , further comprising an end fitting having a side arm, the end fitting being configured to be secured to the first tube.
Claim 72
Dependent Claim
182 words
66 . A device for delivering an axially and radially expandable woven body having two ends into an anatomical structure, comprising: a first tube configured to accept a guide wire, the first tube having at least one pair of first tube holes positioned proximate one end of the first tube; a second tube configured to fit over the first tube, the second tube having at least one pair of second tube holes positioned proximate one end of the second tube; a first securing wire configured to be threaded through the at least one pair of first tube holes; and a second securing wire configured to be threaded through the at least one pair of second tube holes; wherein when the tubes are used for delivering the axially and radially expandable woven body, one end of the axially and radially expandable woven body is secured to the outside of the first tube with the first securing wire and the other end of the axially and radially expandable woven body is secured to the outside of the second tube with the second securing wire.
Claim 73
Dependent Claim
182 words
66 . A device for delivering an axially and radially expandable woven body having two ends into an anatomical structure, comprising: a first tube configured to accept a guide wire, the first tube having at least one pair of first tube holes positioned proximate one end of the first tube; a second tube configured to fit over the first tube, the second tube having at least one pair of second tube holes positioned proximate one end of the second tube; a first securing wire configured to be threaded through the at least one pair of first tube holes; and a second securing wire configured to be threaded through the at least one pair of second tube holes; wherein when the tubes are used for delivering the axially and radially expandable woven body, one end of the axially and radially expandable woven body is secured to the outside of the first tube with the first securing wire and the other end of the axially and radially expandable woven body is secured to the outside of the second tube with the second securing wire.
Claim 74
Dependent Claim
87 words
67 . 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 angles, at least one of the angles being obtuse; wherein the value of the at least one obtuse angle may be increased by axially compressing the body.
Claim 75
Dependent Claim
87 words
67 . 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 angles, at least one of the angles being obtuse; wherein the value of the at least one obtuse angle may be increased by axially compressing the body.
Claim 76
Dependent Claim
114 words
68 . A device comprising: a body suitable for implantation into an a anatomical structure, the body having an axis, 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 shape memory wire located proximate one end of the body, the first segment extending helically in a first direction around the axis toward the other end of the body, the second segment extending helically in a second direction around the axis toward the other end of the body, and the first and second segments crossing each other in a plurality of locations.
Claim 77
Dependent Claim
114 words
68 . A device comprising: a body suitable for implantation into an a anatomical structure, the body having an axis, 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 shape memory wire located proximate one end of the body, the first segment extending helically in a first direction around the axis toward the other end of the body, the second segment extending helically in a second direction around the axis toward the other end of the body, and the first and second segments crossing each other in a plurality of locations.
Claim 78
Dependent Claim
87 words
69 . 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 loops are separated from another loop by a twisted segment.
Claim 79
Dependent Claim
87 words
69 . 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 loops are separated from another loop by a twisted segment.
Claim 80
Dependent Claim
95 words
70 . 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 positioned adjacent 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 loop, at least one of the at least two loops having a compressed shape.
Claim 81
Dependent Claim
95 words
70 . 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 positioned adjacent 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 loop, at least one of the at least two loops having a compressed shape.
References Cited (Backward Citations)
US6007574A
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.