Patent US5464447A successfully refreshed from Google Patents.
US5464447A
Expired / Lapsed
US
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Implantable defibrillator electrodes
Assignee: Sony Corp
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Filing: 1994-01-28
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Granted: 1995-11-07
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Expires: 2014-01-28
Abstract
Abstract Improved implantable defibrillator electrodes and methods of implanting such electrodes are disclosed. One embodiment of the defibrillator electrodes includes a flexible conductive mesh and non-conductive mesh. Another embodiment of the defibrillator electrodes includes a flexible conductive mesh, a non-conductive mesh and an insulator therebetween. A third embodiment of the defibrillator electrode compensates for the shape of a human heart. Methods for implanting the defibrillator electrodes include rolling an electrode and inserting the rolled electrode into a subxiphoid opening while thorascopically observing the insertion and manipulation of the defibrillator electrode.
Inventors
- 👤 Thomas J. Fogarty
- 👤 Thomas A. Howell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:29
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/0587
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
68 words
An implantable defibrillator electrode, comprising: a flexible conductive mesh having at least one side; a flexible conductive wire conductively attached to the flexible conductive mesh; a flexible insulator affixed to one side of the flexible conductive mesh, the flexible insulator having a surface extending beyond a periphery of the flexible conductive mesh; and a tail attached to said surface extending beyond the periphery of the flexible conductive mesh.
Claim 2
Dependent Claim
68 words
An implantable defibrillator electrode, comprising: a flexible conductive mesh having at least one side; a flexible conductive wire conductively attached to the flexible conductive mesh; a flexible insulator affixed to one side of the flexible conductive mesh, the flexible insulator having a surface extending beyond a periphery of the flexible conductive mesh; and a tail attached to said surface extending beyond the periphery of the flexible conductive mesh.
Claim 3
Dependent Claim
14 words
The implantable defibrillator electrode of claim 1, wherein the tail comprises: a flexible cord.
Claim 4
Dependent Claim
40 words
The implantable defibrillator electrode of claim 1, wherein the attachment of the flexible conductive wire to the flexible conductive mesh is opposite to the attachment of the tail to the surface extending beyond the periphery of the flexible conductive mesh.
Claim 5
Dependent Claim
15 words
The implantable defibrillator electrode of claim 1 wherein the flexible conductive mesh comprises: platinum wire.
Claim 6
Dependent Claim
13 words
The implantable defibrillator electrode of claim 1 wherein the flexible insulator comprises: silicone.
Claim 7
Dependent Claim
69 words
An implantable defibrillator electrode, comprising: a flexible conductive mesh having at least one side; a flexible conductive wire conductively attached to the flexible conductive mesh; a flexible insulator affixed to one side of the flexible conductive mesh, the flexible insulator having a surface extending beyond a periphery of the flexible conductive mesh; and a tail attached to the flexible insulator, wherein the tail comprises a flexible multifilament nylon cord.
Claim 8
Dependent Claim
69 words
An implantable defibrillator electrode, comprising: a flexible conductive mesh having at least one side; a flexible conductive wire conductively attached to the flexible conductive mesh; a flexible insulator affixed to one side of the flexible conductive mesh, the flexible insulator having a surface extending beyond a periphery of the flexible conductive mesh; and a tail attached to the flexible insulator, wherein the tail comprises a flexible multifilament nylon cord.
Claim 9
Dependent Claim
64 words
An implantable defibrillator electrode, comprising: a flexible conductive mesh having at least one side; a flexible conductive wire conductively attached to the flexible conductive mesh; a flexible insulator affixed to one side of the flexible conductive mesh, the flexible insulator having separate regions extending beyond a periphery of the flexible conductive mesh; and a tail attached to at least one of the separate regions.
Claim 10
Dependent Claim
64 words
An implantable defibrillator electrode, comprising: a flexible conductive mesh having at least one side; a flexible conductive wire conductively attached to the flexible conductive mesh; a flexible insulator affixed to one side of the flexible conductive mesh, the flexible insulator having separate regions extending beyond a periphery of the flexible conductive mesh; and a tail attached to at least one of the separate regions.
Claim 11
Dependent Claim
14 words
The implantable defibrillator electrode of claim 7, wherein the tail comprises: a flexible cord.
Claim 12
Dependent Claim
68 words
An implantable defibrillator electrode, comprising: a round flexible conductive mesh; a flexible conductive wire conductively attached to the round flexible conductive mesh; and a flexible insulator having a periphery, the flexible insulator affixed to one side of the flexible conductive mesh, the flexible insulator having a surface extending beyond a periphery of the flexible conductive mesh, the flexible insulator further having at least one notch at its periphery.
Claim 13
Dependent Claim
68 words
An implantable defibrillator electrode, comprising: a round flexible conductive mesh; a flexible conductive wire conductively attached to the round flexible conductive mesh; and a flexible insulator having a periphery, the flexible insulator affixed to one side of the flexible conductive mesh, the flexible insulator having a surface extending beyond a periphery of the flexible conductive mesh, the flexible insulator further having at least one notch at its periphery.
Claim 14
Dependent Claim
13 words
The implantable defibrillator electrode of claim 9 wherein said notch is wedge shaped.
Claim 15
Dependent Claim
64 words
An implantable defibrillator electrode, comprising: a flexible conductive mesh; a flexible conductive wire conductively attached to the flexible conductive mesh; a flexible nonconductive mesh; and a flexible insulator, wherein the flexible insulator is secured to a surface of each of the flexible conductive mesh and the flexible nonconductive mesh and the flexible insulator is between the flexible conductive mesh and the flexible nonconductive mesh.
Claim 16
Dependent Claim
64 words
An implantable defibrillator electrode, comprising: a flexible conductive mesh; a flexible conductive wire conductively attached to the flexible conductive mesh; a flexible nonconductive mesh; and a flexible insulator, wherein the flexible insulator is secured to a surface of each of the flexible conductive mesh and the flexible nonconductive mesh and the flexible insulator is between the flexible conductive mesh and the flexible nonconductive mesh.
Claim 17
Dependent Claim
17 words
The implantable defibrillator electrode of claim 11 further comprising: a tail attached to the flexible nonconductive mesh.
Claim 18
Dependent Claim
74 words
An implantable defibrillator electrode, comprising: a flexible conductive mesh; a flexible conductive wire conductively attached to the flexible conductive mesh; a flexible nonconductive mesh; and a flexible insulator, the flexible insulator secured to the flexible conductive mesh and the flexible nonconductive mesh, wherein the flexible insulator is between the flexible conductive mesh and the flexible nonconductive mesh and wherein the flexible nonconductive mesh includes a surface extending beyond a periphery of the flexible insulator.
Claim 19
Dependent Claim
74 words
An implantable defibrillator electrode, comprising: a flexible conductive mesh; a flexible conductive wire conductively attached to the flexible conductive mesh; a flexible nonconductive mesh; and a flexible insulator, the flexible insulator secured to the flexible conductive mesh and the flexible nonconductive mesh, wherein the flexible insulator is between the flexible conductive mesh and the flexible nonconductive mesh and wherein the flexible nonconductive mesh includes a surface extending beyond a periphery of the flexible insulator.
Claim 20
Dependent Claim
68 words
An implantable defibrillator electrode, comprising: a flexible conductive mesh having at least one side; a flexible conductive wire conductively attached to the flexible conductive mesh; a flexible insulator affixed to one side of the flexible conductive mesh, the flexible insulator having a surface extending beyond a periphery of the flexible conductive mesh; and a tail attached to the flexible insulator, wherein the tail comprises a non-conductive flexible cord.
Claim 21
Dependent Claim
68 words
An implantable defibrillator electrode, comprising: a flexible conductive mesh having at least one side; a flexible conductive wire conductively attached to the flexible conductive mesh; a flexible insulator affixed to one side of the flexible conductive mesh, the flexible insulator having a surface extending beyond a periphery of the flexible conductive mesh; and a tail attached to the flexible insulator, wherein the tail comprises a non-conductive flexible cord.
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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) | 1998-11-06 | 1999-05-08 | 1999-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-11-06 | 2003-05-08 | 2003-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-11-06 | 2007-05-08 | 2007-11-07 | $7700.00 | Window Closed / Lapsed |