US5941888A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vaso-occlusive member assembly with multiple detaching points
Assignee: Stryker European Operations Holdings LLC
•
Filing: 1998-02-18
•
Granted: 1999-08-24
•
Expires: 2018-02-18
Abstract
Abstract This device is an apparatus for endovascular occlusion through the formation of thrombi in arteries, veins, aneurysms, vascular malformations, and arteriovenous fistulas. In particular, the device includes multiple vaso-occlusive members connected by electrolytically disintegratible links. Each link connects to the vaso-occlusive member by electrically insulative and conductive joints on opposite ends of the link. The vaso-occlusive members are delivered through a delivery catheter having on its distal end an electrode for electrical contact with the vaso-occlusive member. Upon application of an electrical current through electrode to the vaso-occlusive member and its conductive joint to electrolytically disintegratible link, the link disintegrates, selectively detaching the desired number of vaso-occlusive members into the target thrombus formation site.
Inventors
- 👤 Michael P. Wallace
- 👤 Chad C. Roue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:59
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/12099; A61B17/12109; A61B17/12113; A61B17/12131; A61B17/1214; A61B17/12163; A61B2017/1205; A61B2017/12054; A61B2017/12063
Claims Analysis
Total Claims: 40
Claim 1
Independent Claim
62 words
An assembly for use in the formation of an occlusion comprising: a vaso-occlusive member having a proximal end and a distal end, an electrically insulative joint located proximally on said vaso-occlusive member, an electrolytically disintegratible link located proximally of said electrically insulative joint, and an electrically conductive joint located proximally on said electrolytically disintegratible link and distally on an additional vaso-occlusive member.
Claim 2
Dependent Claim
62 words
An assembly for use in the formation of an occlusion comprising: a vaso-occlusive member having a proximal end and a distal end, an electrically insulative joint located proximally on said vaso-occlusive member, an electrolytically disintegratible link located proximally of said electrically insulative joint, and an electrically conductive joint located proximally on said electrolytically disintegratible link and distally on an additional vaso-occlusive member.
Claim 3
Dependent Claim
16 words
The assembly of claim 1 where at least one of said vaso-occlusive members is a coil.
Claim 4
Dependent Claim
16 words
The assembly of claim 1 where the electrically insulative joint comprises an electrically insulative biocompatible adhesive.
Claim 5
Dependent Claim
18 words
The assembly of claim 1 where the electrically insulative joint comprises an biocompatible oxide of a biocompatible metal.
Claim 6
Dependent Claim
11 words
The assembly of claim 4 where the biocompatible metal is tantalum.
Claim 7
Dependent Claim
15 words
The assembly of claim 1 where the electrically insulative joint comprises at least one polymer.
Claim 8
Dependent Claim
26 words
The assembly of claim 6 where the polymer is selected from the group consisting of polyfluorocarbons, polyxylylene, polyethylene, polyethylene terepthalate, polypropylene, polyurethane, polyimides, and silicone polymers.
Claim 9
Dependent Claim
17 words
The assembly of claim 6 where the electrically insulative joint additionally comprises an electrically insulative biocompatible adhesive.
Claim 10
Dependent Claim
19 words
The assembly of claim 6 where the electrically insulative joint additionally comprises a biocompatible oxide of a biocompatible metal.
Claim 11
Dependent Claim
11 words
The assembly of claim 9 where the biocompatible metal is tantalum.
Claim 12
Dependent Claim
16 words
The assembly of claim 1 where the electrically conductive end of the link comprises a hypotube.
Claim 13
Dependent Claim
137 words
An assembly for use in the formation of a vascular occlusion comprising: a proximal section comprising a core wire having a proximal end and a distal end, a first electrically insulative joint attached to the distal end of said core wire, and a first vaso-occlusive member attached to said first electrically insulative joint, one or more distal sections, each comprising an electrically conductive joint attached to a distal electrolytically disintegratible link, an additional electrically insulative joint located distally on said electrically disintegratible link, and an additional distal vaso-occlusive member, and a catheter having a proximal end and a distal end and having an electrode configured for electrical contact with one of said vaso-occlusive members, whereby upon application of electrical current to a distal section, one of said electrolytically disintegratible links disintegrates, releasing a portion of said assembly.
Claim 14
Dependent Claim
137 words
An assembly for use in the formation of a vascular occlusion comprising: a proximal section comprising a core wire having a proximal end and a distal end, a first electrically insulative joint attached to the distal end of said core wire, and a first vaso-occlusive member attached to said first electrically insulative joint, one or more distal sections, each comprising an electrically conductive joint attached to a distal electrolytically disintegratible link, an additional electrically insulative joint located distally on said electrically disintegratible link, and an additional distal vaso-occlusive member, and a catheter having a proximal end and a distal end and having an electrode configured for electrical contact with one of said vaso-occlusive members, whereby upon application of electrical current to a distal section, one of said electrolytically disintegratible links disintegrates, releasing a portion of said assembly.
Claim 15
Dependent Claim
16 words
The assembly of claim 12 where at least one of said vaso-occlusive members is a coil.
Claim 16
Dependent Claim
16 words
The assembly of claim 12 where the electrically insulative joint comprises an electrically insulative biocompatible adhesive.
Claim 17
Dependent Claim
19 words
The assembly of claim 12 where the electrically insulative joint comprises an electrically insulative oxide of a biocompatible metal.
Claim 18
Dependent Claim
11 words
The assembly of claim 15 where the biocompatible metal is tantalum.
Claim 19
Dependent Claim
15 words
The assembly of claim 12 where the electrically insulative joint comprises at least one polymer.
Claim 20
Dependent Claim
26 words
The assembly of claim 17 where the polymers are selected from the group consisting of polyfluorocarbons, polyxylylene, polyethylene, polyethylene terepthalate, polypropylene, polyurethane, polyimides, and silicone polymers.
Claim 21
Dependent Claim
16 words
The assembly of claim 17 where the electrically insulative joint comprises an electrically insulative biocompatible adhesive.
Claim 22
Dependent Claim
20 words
The assembly of claim 17 where the electrically insulative joint additionally comprises an electrically insulative oxide of a biocompatible metal.
Claim 23
Dependent Claim
11 words
The assembly of claim 17 where the biocompatible metal is tantalum.
Claim 24
Dependent Claim
14 words
The assembly of claim 12 where the electrically conductive insulative joint comprises a hypotube.
Claim 25
Dependent Claim
15 words
The assembly of claim 12 where said catheter additionally comprises at least two radiopaque markers.
Claim 26
Dependent Claim
31 words
The assembly of claim 23 where the distance between at least two of said radiopaque markers substantially equals the distance between said electrolytically disintegratible link and a second electrolytically disintegratible link.
Claim 27
Dependent Claim
30 words
The assembly of claim 12 where an electrically conductive extension of the electrode extends radially towards the center of the catheter and is in electrical contact with the vaso-occlusive member.
Claim 28
Dependent Claim
57 words
The assembly of claim 25 where the electrode extension is configured to allow passage of the vaso-occlusive member through the catheter in a direction from the proximal end towards the distal end and to simultaneously hinder passage of the vaso-occlusive member through the catheter in the opposite direction while maintaining the electrical contact with the vaso-occlusive member.
Claim 29
Dependent Claim
144 words
An assembly for use in the formation of a vascular occlusion, comprising: a proximal section comprising a core wire having a proximal end and a distal end, a first electrically insulative joint attached to the distal end of said core wire, and a first vaso-occlusive member attached to said first electrically insulative joint, one or more distal sections, each comprising an electrically conductive joint attached to a distal electrolytically disintegratible link, an additional electrically insulative joint located distally on said electrically disintegratible link, and an additional distal vaso-occlusive member, a first catheter for delivering said proximal and distal sections to a desired vascular occlusion site, and a second catheter having an electrode configured for electrical contact with one of said vaso-occlusive members, whereby upon application of electrical current to said assembly, one of said electrolytically disintegratible links disintegrates, releasing a portion of said assembly.
Claim 30
Dependent Claim
144 words
An assembly for use in the formation of a vascular occlusion, comprising: a proximal section comprising a core wire having a proximal end and a distal end, a first electrically insulative joint attached to the distal end of said core wire, and a first vaso-occlusive member attached to said first electrically insulative joint, one or more distal sections, each comprising an electrically conductive joint attached to a distal electrolytically disintegratible link, an additional electrically insulative joint located distally on said electrically disintegratible link, and an additional distal vaso-occlusive member, a first catheter for delivering said proximal and distal sections to a desired vascular occlusion site, and a second catheter having an electrode configured for electrical contact with one of said vaso-occlusive members, whereby upon application of electrical current to said assembly, one of said electrolytically disintegratible links disintegrates, releasing a portion of said assembly.
Claim 31
Dependent Claim
16 words
The assembly of claim 27 where at least one of said vaso-occlusive members is a coil.
Claim 32
Dependent Claim
16 words
The assembly of claim 27 where the electrically insulative joint comprises an electrically insulative biocompatible adhesive.
Claim 33
Dependent Claim
17 words
The assembly of claim 27 where the electrically insulative joint comprises an oxide of a biocompatible metal.
Claim 34
Dependent Claim
11 words
The assembly of claim 30 where the biocompatible metal is tantalum.
Claim 35
Dependent Claim
15 words
The assembly of claim 27 where the electrically insulative joint comprises at least one polymer.
Claim 36
Dependent Claim
26 words
The assembly of claim 32 where the polymers are selected from the group consisting of polyfluorocarbons, polyxylylene, polyethylene, polyethylene terepthalate, polypropylene, polyurethane, polyimides, and silicone polymers.
Claim 37
Dependent Claim
16 words
The assembly of claim 32 where the electrically insulative joint comprises an electrically insulative biocompatible adhesive.
Claim 38
Dependent Claim
20 words
The assembly of claim 32 where the electrically insulative joint additionally comprises an electrically insulative oxide of a biocompatible metal.
Claim 39
Dependent Claim
11 words
The assembly of claim 32 where the biocompatible metal is tantalum.
Claim 40
Dependent Claim
14 words
The assembly of claim 27 where the electrically conductive insulative joint comprises a hypotube.
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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) | 2002-08-23 | 2003-02-22 | 2003-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-08-23 | 2007-02-22 | 2007-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-08-23 | 2011-02-22 | 2011-08-24 | $7700.00 | Window Closed / Lapsed |