US6066158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical clot encasing and removal wire
Assignee: W.L. Gore and Associates Inc
•
Filing: 1996-07-25
•
Granted: 2000-05-23
•
Expires: 2016-07-25
Abstract
Abstract This is a surgical device usually delivered through an intravascular catheter. It is designed to pierce and remove emboli often found in tortuous vasculature. The device includes several sections. The device has a core element. Placed around the distal end of the core wire is a collapsible but self expanding embolism collection assembly. That collector assembly is typically joined to the core wire at its distal end. The collector assembly may have a generally conical distal portion when expanded and may have a proximal section having varied purposes, e.g. for centering the collector assembly in the vascular lumen. The assembly further may have an actuator which permits the collector assembly to expand after deployment.
Inventors
- 👤 Erik T. Engelson
- 👤 Gene Samson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:23
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/22; A61B17/221; A61B17/320725; A61B17/32075; A61B17/22031; A61B2017/22034; A61B2017/22051; A61B2017/22061; A61B2017/2212; A61M; A61M25/00; A61M25/10; A61M2025/1043; A61M2025/1095; A61M29/00; A61M29/02
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
108 words
An embolectomy device comprising: a core wire element having a distal end and a proximal end and a longitudinal axis, and an embolism collector element comprising at least one spirally wound, superelastic alloy ribbon, and an actuator comprising a cylindrical member fixedly attached to the embolism collector element, wherein said collector element has a first deployment shape adjacent said core wire element when said actuator is in a first deployment position and a second expanded shape when said actuator is in a second deployment position, said second expanded shape comprising a trailing conical collector section having a distal end that is fixedly attached to said core wire element.
Claim 2
Dependent Claim
108 words
An embolectomy device comprising: a core wire element having a distal end and a proximal end and a longitudinal axis, and an embolism collector element comprising at least one spirally wound, superelastic alloy ribbon, and an actuator comprising a cylindrical member fixedly attached to the embolism collector element, wherein said collector element has a first deployment shape adjacent said core wire element when said actuator is in a first deployment position and a second expanded shape when said actuator is in a second deployment position, said second expanded shape comprising a trailing conical collector section having a distal end that is fixedly attached to said core wire element.
Claim 3
Dependent Claim
21 words
The embolectomy device of claim 1 wherein the embolism collector element further comprises a cylindrical section proximally of said conical section.
Claim 4
Dependent Claim
32 words
The embolectomy device of claim 1 wherein the embolism collector element comprises at least two spirally wound superelastic alloy ribbons wound respectively clockwise and counter-clockwise about the axis of the core element.
Claim 5
Dependent Claim
20 words
The embolectomy device of claim 1 wherein the embolism collector element comprises a plurality of ribbons woven into a braid.
Claim 6
Dependent Claim
14 words
The embolectomy device of claim 4 wherein the braid is more tightly woven distally.
Claim 7
Dependent Claim
14 words
The embolectomy device of claim 5 wherein the braid is less tightly wound proximally.
Claim 8
Dependent Claim
18 words
The embolectomy device of claim 5 wherein the embolism collection element is braided proximally of the conical section.
Claim 9
Dependent Claim
19 words
The embolectomy device of claim 4 wherein the embolism collector element is not braided proximally of the conical section.
Claim 10
Dependent Claim
16 words
The embolectomy device of claim 1 wherein the embolectomy collector element has a decreasing radius distally.
Claim 11
Dependent Claim
23 words
The embolectomy device of claim 1 wherein the core element farther comprises a helically wound coil located distally of the embolism collector element.
Claim 12
Dependent Claim
23 words
The embolectomy device of claim 4 wherein the core element further comprises a helically wound coil located distally of the embolism collector element.
Claim 13
Dependent Claim
15 words
The embolectomy device of claim 1 wherein the embolism collector element comprises a nickel-titanium alloy.
Claim 14
Dependent Claim
15 words
The embolectomy device of claim 4 wherein the embolism collector element comprises a nickel-titanium alloy.
Claim 15
Dependent Claim
20 words
The embolectomy device of claim 4 wherein the embolism collector element comprises a minor number of ribbons comprising stainless steel.
Claim 16
Dependent Claim
21 words
The embolectomy device of claim 4 wherein the embolism collector element comprises a minor number of ribbons comprised of radioopaque alloys.
Claim 17
Dependent Claim
23 words
The embolectomy device of claim 1 wherein the embolism collector element is contained in a first deployment shape by an electrolitically severable band.
Claim 18
Dependent Claim
23 words
The embolectomy device of claim 4 wherein the embolism collector element is contained in a first deployment shape by an electrolitically severable band.
Claim 19
Dependent Claim
21 words
The embolectomy device of claim 4 wherein the embolism collector element further comprises a cylindrical section proximally of said conical section.
Claim 20
Dependent Claim
21 words
The embolectomy device of claim 5 wherein the embolism collector element further comprises a cylindrical section proximally of said conical section.
Claim 21
Dependent Claim
21 words
The embolectomy device of claim 6 wherein the embolism collector element further comprises a cylindrical section proximally of said conical section.
Claim 22
Dependent Claim
22 words
The embolectomy device of claim 1 wherein the core wire element comprises a core wire having an external and fixedly attached braid.
Claim 23
Dependent Claim
22 words
The embolectomy device of claim 4 wherein the core wire element comprises a core wire having an external and fixedly attached braid.
Claim 24
Dependent Claim
22 words
The embolectomy device of claim 5 wherein the core wire element comprises a core wire having an external and fixedly attached braid.
Claim 25
Dependent Claim
22 words
The embolectomy device of claim 6 wherein the core wire element comprises a core wire having an external and fixedly attached braid.
Claim 26
Dependent Claim
13 words
The embolectomy device of claim 22 wherein said braid is a nickel-titanium alloy.
Claim 27
Dependent Claim
13 words
The embolectomy device of claim 23 wherein said braid is a nickel-titanium alloy.
Claim 28
Dependent Claim
13 words
The embolectomy device of claim 24 wherein said braid is a nickel-titanium alloy.
Claim 29
Dependent Claim
32 words
The embolectomy device of claim 4 wherein the core wire element comprises a tubular member fixedly attached to the embolism collector element and a removable core wire interior to the tubular member.
Claim 30
Dependent Claim
32 words
The embolectomy device of claim 5 wherein the core wire element comprises a tubular member fixedly attached to the embolism collector element and a removable core wire interior to the tubular member.
Claim 31
Dependent Claim
32 words
The embolectomy device of claim 6 wherein the core wire element comprises a tubular member fixedly attached to the embolism collector element and a removable core wire interior to the tubular member.
Claim 32
Dependent Claim
20 words
The embolectomy device of claim 2 wherein the actuator comprises a tubular member fixedly attached to the embolism collector element.
Claim 33
Dependent Claim
13 words
The embolectomy device of claim 31 wherein said tubular element comprises a braid.
Claim 34
Dependent Claim
13 words
The embolectomy device of claim 32 wherein the braid comprises a superelastic alloy.
Claim 35
Dependent Claim
21 words
The embolectomy device of claim 4 wherein the embolism collector element further comprises an interior and distal supplemental embolism collector element.
Claim 36
Dependent Claim
15 words
The embolectomy device of claim 34 wherein the supplemental embolism collector element comprises a braid.
Claim 37
Dependent Claim
27 words
The embolectomy device of claim 1 wherein the core wire element further comprises a spring element adapted to deploy said embolism collector element to said second shape.
Claim 38
Dependent Claim
13 words
The embolectomy device of claim 1 wherein the embolism collector element is self-deploying.
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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) | 2003-05-23 | 2003-11-22 | 2004-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-05-23 | 2007-11-22 | 2008-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-05-23 | 2011-11-22 | 2012-05-23 | $7700.00 | Window Closed / Lapsed |