US6792979B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods for creating woven devices
Assignee: The University of Texas System
•
Filing: 2002-09-16
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Granted: 2004-09-21
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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
- 👤 Andras Konya
- 👤 Hideki Hyodoh
- 👤 Kenneth C. Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:28
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: 24
Claim 1
Independent Claim
126 words
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 2
Independent Claim
126 words
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 3
Dependent Claim
13 words
The method of claim 1 , wherein the first template projections comprise tabs.
Claim 4
Dependent Claim
13 words
The method of claim 1 , wherein the first template projections comprise pins.
Claim 5
Dependent Claim
18 words
The method of claim 3 , wherein the pins are attached to a ring engaged with the template.
Claim 6
Dependent Claim
26 words
The method of claim 1 , wherein the weaving system further comprises a first weaving plate configured to rotate in a first direction during the weaving.
Claim 7
Dependent Claim
37 words
The method of claim 5 , 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 8
Dependent Claim
38 words
The method of claim 5 , 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 9
Dependent Claim
37 words
The method of claim 7 , 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 10
Dependent Claim
16 words
The method of claim 1 , further comprising securing the shape memory wires to the template.
Claim 11
Dependent Claim
32 words
The method of claim 1 , 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 12
Dependent Claim
14 words
The method of claim 1 , further comprising heating the body and the template.
Claim 13
Independent Claim
129 words
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 in non-interlocking fashion to form a plurality of angles, at least one of the angles being obtuse; where the value of the at least one obtuse angle may be increased by axially compressing the body.
Claim 14
Independent Claim
129 words
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 in non-interlocking fashion to form a plurality of angles, at least one of the angles being obtuse; where the value of the at least one obtuse angle may be increased by axially compressing the body.
Claim 15
Dependent Claim
13 words
The method of claim 12 , where the first template projections comprise tabs.
Claim 16
Dependent Claim
13 words
The method of claim 12 , where the first template projections comprise pins.
Claim 17
Dependent Claim
18 words
The method of claim 14 , where the pins are attached to a ring engaged with the template.
Claim 18
Dependent Claim
26 words
The method of claim 12 , where the weaving system further comprises a first weaving plate configured to rotate in a first direction during the weaving.
Claim 19
Dependent Claim
35 words
The method of claim 16 , 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 20
Dependent Claim
38 words
The method of claim 16 , where 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 21
Dependent Claim
37 words
The method of claim 18 , where 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 22
Dependent Claim
16 words
The method of claim 12 , further comprising securing the shape memory wires to the template.
Claim 23
Dependent Claim
32 words
The method of claim 12 , 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 24
Dependent Claim
14 words
The method of claim 12 , further comprising heating the body and the template.
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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) | 2007-09-21 | 2008-03-22 | 2008-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-09-21 | 2012-03-22 | 2012-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-09-21 | 2016-03-22 | 2016-09-21 | $7700.00 | Window Closed / Lapsed |