US6501992B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiopaque marking of lead electrode zone in a continuous conductor construction
Assignee: Medtronic Inc
•
Filing: 2000-10-17
•
Granted: 2002-12-31
•
Expires: 2020-10-17
Abstract
Abstract A cardiac transvenous defibrillation lead has a continuous coil conductor within a layer of insulation. A portion of the coil conductor is exposed as a defibrillation electrode. In order to enhance fluoroscopic visualization of the exposed electrode during implant, the end of the exposed electrode is marked with a radiopaque element. The element may be in the form of an adhesive filled with radiopaque material that is used to backfill under the layer of insulation. Alternatively, a tube made of radiopaque material may be installed between the layer of insulation and the coil conductor.
Inventors
- 👤 Elisabeth L. Belden
- 👤 Gregory A. Boser
- 👤 Michael R. Dollimer
- 👤 Mary M. Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:08
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056; A61N1/0563
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
117 words
A transvenous lead, comprising: a continuous coil conductor having a proximal portion and a distal portion, the proximal portion covered with a layer of insulation and the distal portion exposed as an electrode, the proximal and distal portions having substantially equivalent radiopaque characteristics; and a tube of radiopaque material, including a Pt/IR spring, installed as a marker over the continuous coil conductor at a location adjacent to a proximal end of the exposed distal portion of the coil conductor; wherein the Pt/IR spring extends from under the layer of insulation, adjacent to the proximal end of the exposed distal portion of the coil conductor, distally, over a portion of the exposed distal portion of the coil conductor.
Claim 2
Dependent Claim
117 words
A transvenous lead, comprising: a continuous coil conductor having a proximal portion and a distal portion, the proximal portion covered with a layer of insulation and the distal portion exposed as an electrode, the proximal and distal portions having substantially equivalent radiopaque characteristics; and a tube of radiopaque material, including a Pt/IR spring, installed as a marker over the continuous coil conductor at a location adjacent to a proximal end of the exposed distal portion of the coil conductor; wherein the Pt/IR spring extends from under the layer of insulation, adjacent to the proximal end of the exposed distal portion of the coil conductor, distally, over a portion of the exposed distal portion of the coil conductor.
Claim 3
Dependent Claim
118 words
A transvenous lead, comprising: a continuous coil conductor having a proximal portion and a distal portion, the proximal portion covered with a layer of insulation and the distal portion exposed as an electrode, the proximal and distal portions having substantially equivalent radiopaque characteristics; and a body of adhesive filled with a radiopaque material positioned as a marker around the continuous coil conductor at a location adjacent to a proximal end of the exposed distal portion of the coil conductor; wherein the body of adhesive extends from under the layer of insulation, adjacent to the proximal end of the exposed distal portion of the coil conductor, distally, over a portion of the exposed distal portion of the coil conductor.
Claim 4
Dependent Claim
118 words
A transvenous lead, comprising: a continuous coil conductor having a proximal portion and a distal portion, the proximal portion covered with a layer of insulation and the distal portion exposed as an electrode, the proximal and distal portions having substantially equivalent radiopaque characteristics; and a body of adhesive filled with a radiopaque material positioned as a marker around the continuous coil conductor at a location adjacent to a proximal end of the exposed distal portion of the coil conductor; wherein the body of adhesive extends from under the layer of insulation, adjacent to the proximal end of the exposed distal portion of the coil conductor, distally, over a portion of the exposed distal portion of the coil conductor.
Claim 5
Dependent Claim
122 words
A transvenous lead, comprising: a continuous coil conductor having a proximal portion and a distal portion, the proximal portion covered with a layer of insulation and the distal portion exposed as an electrode, the proximal and distal portions having substantially equivalent radiopaque characteristics; and a tube of radiopaque material, including a polymer filled with barium sulfate, installed as a marker over the continuous coil conductor at a location adjacent to a proximal end of the exposed distal portion of the coil conductor; wherein the tube of radiopaque material extends from under the layer of insulation, adjacent to the proximal end of the exposed distal portion of the coil conductor, distally, over a portion of the exposed distal portion of the coil conductor.
Claim 6
Dependent Claim
122 words
A transvenous lead, comprising: a continuous coil conductor having a proximal portion and a distal portion, the proximal portion covered with a layer of insulation and the distal portion exposed as an electrode, the proximal and distal portions having substantially equivalent radiopaque characteristics; and a tube of radiopaque material, including a polymer filled with barium sulfate, installed as a marker over the continuous coil conductor at a location adjacent to a proximal end of the exposed distal portion of the coil conductor; wherein the tube of radiopaque material extends from under the layer of insulation, adjacent to the proximal end of the exposed distal portion of the coil conductor, distally, over a portion of the exposed distal portion of the coil conductor.
References Cited (Backward Citations)
US4481953A
Cited
US4617932A
Cited
US4693703A
Cited
US4932407A
Cited
US5078726A
Cited
US5042143A
Cited
US5090422A
Cited
US5984877A
Cited
US5265623A
Cited
US5473812A
Cited
US5423763A
Cited
US5405374A
Cited
US5439485A
Cited
US5728149A
Cited
US5957961A
Cited
US5871530A
Cited
US6168570B1
Cited
US5957966A
Cited
US5964795A
Cited
US5948015A
Cited
WO2000001441A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-12-30 | 2006-07-01 | 2006-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-12-30 | 2010-07-01 | 2010-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-12-30 | 2014-07-01 | 2014-12-31 | $7700.00 | Window Closed / Lapsed |