Patent US2466507A successfully refreshed from Google Patents.
US4603704A
Expired / Lapsed
US
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Electrode for medical applications
Assignee: Pacesetter AB
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Filing: 1984-01-11
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Granted: 1986-08-05
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Expires: 2004-01-11
Abstract
Abstract In order to expand the availability of effective and usable electrodes for medical applications, an electrode is proposed which is comprised of an electrically conductive carrier material and of a porous layer in its active region which is composed of a carbide, nitride or carbonitride of one of the metals titanium, vanadium, zirconium, niobium, molybdenum, hafnium, tantalum or tungsten.
Inventors
- 👤 Konrad Mund
- 👤 Helmut Freller
- 👤 Friedrich Hoerauf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:37
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056; A61N1/0565; A61B; A61B5/00; A61B5/24; A61B5/25; A61B5/263
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
73 words
An electrode for medical applications comprising an electrically conductive carrier material and a porous layer defining an active region, said porous layer being of a material comprised of at least one compound selected from the group consisting of a carbide, nitride or carbonitride of at least one of the metals titanium, vanadium, zirconium, niobium, molybdenum, hafnium, tantalum or tungsten, said porous layer having a layer thickness between one micron and one hundred microns.
Claim 2
Dependent Claim
73 words
An electrode for medical applications comprising an electrically conductive carrier material and a porous layer defining an active region, said porous layer being of a material comprised of at least one compound selected from the group consisting of a carbide, nitride or carbonitride of at least one of the metals titanium, vanadium, zirconium, niobium, molybdenum, hafnium, tantalum or tungsten, said porous layer having a layer thickness between one micron and one hundred microns.
Claim 3
Dependent Claim
33 words
An electrode as claimed in claim 1, wherein a dense nonporous layer of a material corresponding to the material of the porous layer is situated between the carrier material and the porous layer.
Claim 4
Dependent Claim
20 words
An electrode as claimed in claim 2, wherein the dense layer has a layer thickness between two and ten microns.
Claim 5
Dependent Claim
45 words
An electrode as claimed in claim 1, with said electrode having a plurality of active regions each having a porous layer comprised of at least one of said compounds, the regions having said porous layer separated from one another by regions without a porous layer.
Claim 6
Dependent Claim
13 words
An electrode as claimed in claim 1, wherein the carrier material is titanium.
Claim 7
Dependent Claim
13 words
An electrode as claimed in claim 1, wherein the carrier material is platinum.
Claim 8
Dependent Claim
23 words
An electrode as claimed in claim 1, wherein the porous layer has a layer thickness between about five microns and about fifty microns.
Claim 9
Dependent Claim
13 words
An electrode as claimed in claim 7, wherein the carrier material is titanium.
Claim 10
Dependent Claim
13 words
An electrode as claimed in claim 7, wherein the carrier material is platinum.
Claim 11
Dependent Claim
36 words
An electrode as claimed in claim 7, wherein a dense nonporous sealing layer comprised of at least said one of said compounds in the porous layer is disposed between the carrier material and the porous layer.
Claim 12
Dependent Claim
22 words
An electrode as claimed in claim 10, wherein the dense nonporous sealing layer has a layer thickness between two and ten microns.
Claim 13
Dependent Claim
123 words
An electrode system for medical applications comprising an implantable stimulation electrode, said implantable stimulation electrode comprising an electrically conductive carrier material and at least one active region formed of a porous exposed layer exposed to bodily fluids, said porous exposed layer being of a material formed of at least one compound having the formula MeX, where Me is at least one of the metals selected from the group consisting essentially of titanium, vanadium, zirconium, niobium, molybdenum, hafnium, tantalum and tungsten, and where X is selected from the group consisting essentially of at least one of carbon and nitrogen, said porous exposed layer having a layer thickness permeable to bodily fluids which is between about one micron and about one hundred microns in depth.
Claim 14
Dependent Claim
123 words
An electrode system for medical applications comprising an implantable stimulation electrode, said implantable stimulation electrode comprising an electrically conductive carrier material and at least one active region formed of a porous exposed layer exposed to bodily fluids, said porous exposed layer being of a material formed of at least one compound having the formula MeX, where Me is at least one of the metals selected from the group consisting essentially of titanium, vanadium, zirconium, niobium, molybdenum, hafnium, tantalum and tungsten, and where X is selected from the group consisting essentially of at least one of carbon and nitrogen, said porous exposed layer having a layer thickness permeable to bodily fluids which is between about one micron and about one hundred microns in depth.
Claim 15
Dependent Claim
28 words
An electrode system according to claim 12, with said porous exposed layer of said implantable stimulation electrode having a layer thickness about five microns and about fifty microns.
Claim 16
Dependent Claim
56 words
An electrode system according to claim 12, with said electrically conductive carrier material having a dense nonporous sealing layer isolating said carrier material from bodily fluids, said dense nonporous sealing layer being of a material corresponding to the material of said porous exposed layer, said porous exposed layer being applied on said dense nonporous sealing layer.
Claim 17
Dependent Claim
22 words
An electrode system according to claim 14, wherein said dense nonporous sealing layer has a layer thickness between two and ten microns.
Claim 18
Dependent Claim
51 words
An electrode system according to claim 12, with said implantable stimulation electrode having a plurality of separate active regions each formed with a porous exposed layer of said material and having said layer thickness, and said porous exposed layers being separated from one another by regions without a porous exposed layer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-04 | 1990-02-03 | 1990-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-04 | 1994-02-03 | 1994-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-04 | 1998-02-03 | 1998-08-05 | $7700.00 | Window Closed / Lapsed |