US6551352B2
Expired / Lapsed
US
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Method for attaching axial filaments to a self expanding stent
Assignee: Bionx Implants Inc
•
Filing: 2001-05-03
•
Granted: 2003-04-22
•
Expires: 2021-05-03
Abstract
Abstract Methods for attaching an axial filament to the body of a self expanding stent, the filament serving to enhance the radial self expanding force of the stent body. Also stents having enhanced radial self expansion characteristics.
Inventors
- 👤 Claude O. Clerc
- 👤 James T. Hogan
- 👤 Carol A. Kaufmann
- 👤 E. Skott Greenhalgh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:02
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61F2002/825; A61F2210/00; A61F2210/0004; A61F2250/00; A61F2250/0014; A61F2250/0048
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
77 words
A method of fabricating a self-expanding stent with enhanced radial expansion force, said method comprising the steps of: (1) providing a stent body in the shape of a tube; (2) providing at least one filament arranged axially to said stent, said filament being elastic; (3) attaching said filament to said stent body with an adhesive in a position such that said filament exerts an axial compression force on said stent body when said stent is axially elongated.
Claim 2
Independent Claim
77 words
A method of fabricating a self-expanding stent with enhanced radial expansion force, said method comprising the steps of: (1) providing a stent body in the shape of a tube; (2) providing at least one filament arranged axially to said stent, said filament being elastic; (3) attaching said filament to said stent body with an adhesive in a position such that said filament exerts an axial compression force on said stent body when said stent is axially elongated.
Claim 3
Dependent Claim
37 words
The method of claim 1 wherein said filament is positioned such that said filament exerts an axial compression force on said stent body when said stent is at a diameter that would otherwise be its rest diameter.
Claim 4
Dependent Claim
46 words
The method of claim 1 wherein said stent body is comprised of at least one thread and wherein step (3) comprises: (3.1) placing said filament axially on said stent body (3.2) applying adhesive dissolved in a solvent to said filament; and (3.3) thereafter evaporating said solvent.
Claim 5
Dependent Claim
22 words
The method of claim 3 wherein step (3.2) comprises applying said adhesive in a band over the entire length of said filament.
Claim 6
Dependent Claim
71 words
The method of claim 3 wherein said stent body comprises a first set of threads helically wound in a first direction and a second set of threads helically wound in a second direction wherein said first set of threads and said second set of threads cross each other and wherein step (3.2) comprises applying said adhesive only at points where said axial filament intersects with said threads forming said stent body.
Claim 7
Dependent Claim
19 words
The method of claim 5 wherein step (3.1) comprises interweaving said filament with said threads forming said stent body.
Claim 8
Dependent Claim
13 words
The method of claim 3 wherein step (3.3) comprises heat treating said stents.
Claim 9
Dependent Claim
18 words
The method of claim 7 wherein said adhesive is a bioabsorbable polymer and said solvent is methylene chloride.
Claim 10
Dependent Claim
10 words
The method of claim 7 wherein said adhesive is silicone.
Claim 11
Dependent Claim
20 words
The method of claim 3 wherein step (3.1) comprises placing said filament on an outer surface of said stent body.
Claim 12
Dependent Claim
20 words
The method of claim 3 wherein step (3.1) comprises placing said filament on an inner surface of said stent body.
Claim 13
Dependent Claim
18 words
The method of claim 3 wherein said threads of said stent body are formed of a bioabsorbable polymer.
Claim 14
Dependent Claim
15 words
The method of claim 12 wherein said axial filaments are formed of a bioabsorbable polymer.
Claim 15
Dependent Claim
15 words
The method of claim 3 wherein said axial filaments are formed of a bioabsorbable polymer.
Claim 16
Dependent Claim
12 words
The method of claim 3 wherein said adhesive comprises a bioabsorbable polymer.
Claim 17
Dependent Claim
17 words
The method of claim 15 wherein said adhesive and said filaments are formed of the same material.
Claim 18
Dependent Claim
10 words
The method of claim 3 wherein said adhesive is silicone.
Claim 19
Dependent Claim
34 words
The method of claim 1 wherein step (3) comprises: (3.1) applying adhesive to said filament; (3.2) placing said filament with said adhesive axially on said stent body; and (3.3) thereafter heat treating said stent.
Claim 20
Dependent Claim
18 words
The method of claim 18 wherein step (3.2) comprises dipping said filament in a solution of said adhesive.
Claim 21
Dependent Claim
15 words
The method of claim 18 wherein step (3.2) comprises spraying said adhesive on said filament.
Claim 22
Dependent Claim
34 words
The method of claim 1 wherein step (3) comprises (3.1) placing said filament axially on said stent body (3.2) spraying adhesive dissolved in a solvent on said stent; and (3.3) thereafter evaporating said solvent.
Claim 23
Dependent Claim
36 words
The method of claim 1 wherein step (3) comprises (3.1) placing said filament axially on said stent body (3.2) dipping said stent in a solution of adhesive dissolved in solvent; and (3.3) thereafter evaporating said solvent.
Claim 24
Independent Claim
72 words
A method of fabricating a self-expanding stent with enhanced radial expansion force, said method comprising the steps of: (1) providing a self-expanding stent body in the shape of a tube, said stent body formed of a plurality of intersection threads; (2) covering at least a portion of said stent body with an adhesive dissolved in a solvent; and (3) heat treating said stent to evaporate said solvent; whereby said threads are stiffened.
Claim 25
Independent Claim
72 words
A method of fabricating a self-expanding stent with enhanced radial expansion force, said method comprising the steps of: (1) providing a self-expanding stent body in the shape of a tube, said stent body formed of a plurality of intersection threads; (2) covering at least a portion of said stent body with an adhesive dissolved in a solvent; and (3) heat treating said stent to evaporate said solvent; whereby said threads are stiffened.
Claim 26
Dependent Claim
19 words
The method of claim 23 wherein step (2) comprises spraying said stent body with said adhesive dissolved in solvent.
Claim 27
Dependent Claim
19 words
The method of claim 23 wherein step (2) comprises dipping said stent body in said adhesive dissolved in solvent.
Claim 28
Dependent Claim
57 words
The method of claim 25 wherein said stent body comprises a first end section, a middle section, and a second end section arranged longitudinally along said stent body and wherein step (2) comprises: (2.1) dipping said first end section in said adhesive dissolved in solvent; (2.2) dipping said second end section in said adhesive dissolved in solvent.
Claim 29
Independent Claim
40 words
A method of fabricating a self-expanding stent with enhanced radial expansion force, said method comprising the steps of: (1) providing a stent body in the shape of a tube; and (2) applying axial strips of adhesive to said stent body.
Claim 30
Independent Claim
40 words
A method of fabricating a self-expanding stent with enhanced radial expansion force, said method comprising the steps of: (1) providing a stent body in the shape of a tube; and (2) applying axial strips of adhesive to said stent body.
Claim 31
Dependent Claim
10 words
The method of claim 27 wherein said adhesive is elastomeric.
Claim 32
Dependent Claim
35 words
The method of claim 27 wherein step (2) comprises the steps of: (2.1) applying a solution comprising an adhesive dissolved in a solvent in axial strips on said stent body; and (2.2) evaporating said solvent.
Claim 33
Dependent Claim
13 words
The method of claim 29 wherein step (2.2) comprises heat treating said stent.
Claim 34
Dependent Claim
15 words
The method of claim 29 wherein step (2.1) comprises applying said solution with a syringe.
Claim 35
Dependent Claim
52 words
The method of claim 27 further comprising the step of: (3) prior to step (2), radially expanding said stent body to a position in which it has a radial diameter greater than its rest radial diameter and holding said stent in said position until said adhesive has bonded to said stent body.
Claim 36
Dependent Claim
14 words
The method of claim 27 wherein said adhesive is formed of a bioabsorbable polymer.
Claim 37
Dependent Claim
15 words
The method of claim 33 wherein said stent body is formed of a bioabsorbable polymer.
Claim 38
Dependent Claim
37 words
A self-expanding stent with enhanced radial expansion force comprising: a stent body in the shape of a tube; and at least one strip of adhesive running axially of said stent body and bonded to said stent body.
Claim 39
Dependent Claim
37 words
A self-expanding stent with enhanced radial expansion force comprising: a stent body in the shape of a tube; and at least one strip of adhesive running axially of said stent body and bonded to said stent body.
Claim 40
Dependent Claim
12 words
The stent of claim 35 wherein said adhesive is an elastomeric polymer.
Claim 41
Dependent Claim
42 words
The stent of claim 35 wherein, in the absence of an external force on said stent, said adhesive holds said stent body in a position in which it has a radial diameter greater than a resting radial diameter of said stent body.
Claim 42
Dependent Claim
14 words
The stent of claim 37 wherein said adhesive is formed of a bioabsorbable polymer.
Claim 43
Dependent Claim
15 words
The stent of claim 38 wherein said stent body is formed of a bioabsorbable polymer.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2006-04-21 | 2006-10-21 | 2007-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-04-21 | 2010-10-21 | 2011-04-22 | $3760.00 | Window Closed / Lapsed |
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