US5587200A
Expired / Lapsed
US
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Method for manufacturing a medical electrode
Assignee: Pacesetter AB
•
Filing: 1995-11-07
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Granted: 1996-12-24
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Expires: 2015-11-07
Abstract
Abstract In a method for manufacturing electrodes for medical applications, particularly implantable stimulation electrodes, having an active layer of porous titanium nitride, a substrate of electrically conductive material that is in an atmosphere containing titanium, nitrogen and hydrogen is irradiated with an excimer laser through an optical mask, and a structure of porous titanium nitride is deposited on the substrate.
Inventors
- 👤 Hans P. Lorenz
- 👤 Bernd Straehler
- 👤 Ulf Lindegren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:40
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
89 words
A method for manufacturing a medical electrode comprising the steps of: disposing a bare substrate of electrically conductive material in an atmosphere containing titanium, nitrogen and hydrogen; directly covering said bare substrate with an optical mask having a pattern therein having openings corresponding to a structure to be produced on said substrate; and irradiating said substrate with said optical mask thereon in said atmosphere with an excimer laser and thereby depositing a structure of porous titanium nitride corresponding to said pattern directly on said substrate exclusively in said openings.
Claim 2
Independent Claim
89 words
A method for manufacturing a medical electrode comprising the steps of: disposing a bare substrate of electrically conductive material in an atmosphere containing titanium, nitrogen and hydrogen; directly covering said bare substrate with an optical mask having a pattern therein having openings corresponding to a structure to be produced on said substrate; and irradiating said substrate with said optical mask thereon in said atmosphere with an excimer laser and thereby depositing a structure of porous titanium nitride corresponding to said pattern directly on said substrate exclusively in said openings.
Claim 3
Dependent Claim
43 words
A method as claimed in claim 1, wherein the step of disposing a substrate of electrically conductive material in an atmosphere containing titanium, nitrogen and hydrogen comprises disposing said substrate of electrically conductive material in an atmosphere of titanium tetrachloride, nitrogen and hydrogen.
Claim 4
Dependent Claim
39 words
A method as claimed in claim 1, wherein the step of disposing a substrate of electrically conductive material in an atmosphere containing titanium, nitrogen and hydrogen comprises disposing a titanium substrate in an atmosphere containing titanium, nitrogen, and hydrogen.
Claim 5
Dependent Claim
64 words
A method as claimed in claim 1, wherein the step of irradiating said substrate with said optical mask thereon in said atmosphere with an excimer laser comprises irradiating said substrate with said optical mask thereon in said atmosphere with an excimer laser which emits laser radiation having a wavelength selected from the group consisting of 193 nm, 248 nm, 308 nm, and 351 nm.
Claim 6
Dependent Claim
27 words
A method as claimed in claim 1, comprising the additional step of elevating a temperature of said substrate during irradiation of said substrate with said excimer laser.
Claim 7
Independent Claim
78 words
A method for manufacturing a medical electrode comprising the steps of: disposing a substrate of electrically conductive material in an atmosphere containing tetrakis(dimethylamino)-titanium and nitrogen; covering said substrate with an optical mask having a pattern therein corresponding to a structure to be produced on said substrate; and irradiating said substrate with said optical mask thereon in said atmosphere with an excimer laser and thereby depositing a structure of porous titanium nitride corresponding to said pattern on said substrate.
Claim 8
Independent Claim
78 words
A method for manufacturing a medical electrode comprising the steps of: disposing a substrate of electrically conductive material in an atmosphere containing tetrakis(dimethylamino)-titanium and nitrogen; covering said substrate with an optical mask having a pattern therein corresponding to a structure to be produced on said substrate; and irradiating said substrate with said optical mask thereon in said atmosphere with an excimer laser and thereby depositing a structure of porous titanium nitride corresponding to said pattern on said substrate.
Claim 9
Dependent Claim
44 words
A method as claimed in claim 6, wherein the step of disposing a substrate of electrically conductive material in an atmosphere containing tetrakis (dimethylamino)-titanium and nitrogen comprises disposing said substrate of electrically conductive material in an atmosphere containing tetrakis (dimethylamino)-titanium and nitrogen and hydrogen.
Claim 10
Dependent Claim
40 words
A method as claimed in claim 6, wherein the step of disposing a substrate of electrically conductive material in an atmosphere containing tetrakis (dimethylamino)-titanium and nitrogen and comprises disposing a titanium substrate in said atmosphere containing tetrakis (dimethylamino)-titanium and nitrogen.
Claim 11
Dependent Claim
64 words
A method as claimed in claim 6, wherein the step of irradiating said substrate with said optical mask thereon in said atmosphere with an excimer laser comprises irradiating said substrate with said optical mask thereon in said atmosphere with an excimer laser which emits laser radiation having a wavelength selected from the group consisting of 193 nm, 248 nm, 308 nm, and 351 nm.
Claim 12
Dependent Claim
27 words
A method as claimed in claim 6, comprising the additional step of elevating a temperature of said substrate during irradiation of said substrate with said excimer laser.
Claim 13
Independent Claim
89 words
A method for manufacturing a medical electrode comprising the steps of: disposing a bare substrate of electrically conductive material in an atmosphere containing titanium tetrachloride and ammonia; directly covering said bare substrate with an optical mask having a pattern therein having openings corresponding to a structure to be produced on said substrate; and irradiating said substrate with said optical mask thereon in said atmosphere with an excimer laser and thereby depositing a structure of porous titanium nitride corresponding to said pattern directly on said substrate exclusively in said openings.
Claim 14
Independent Claim
89 words
A method for manufacturing a medical electrode comprising the steps of: disposing a bare substrate of electrically conductive material in an atmosphere containing titanium tetrachloride and ammonia; directly covering said bare substrate with an optical mask having a pattern therein having openings corresponding to a structure to be produced on said substrate; and irradiating said substrate with said optical mask thereon in said atmosphere with an excimer laser and thereby depositing a structure of porous titanium nitride corresponding to said pattern directly on said substrate exclusively in said openings.
Claim 15
Dependent Claim
39 words
A method as claimed in claim 11, wherein the step of disposing a substrate of electrically conductive material in an atmosphere containing titanium tetrachloride and ammonia comprises disposing a titanium substrate in said atmosphere containing titanium tetrachloride and ammonia.
Claim 16
Dependent Claim
64 words
A method as claimed in claim 11, wherein the step of irradiating said substrate with said optical mask thereon in said atmosphere with an excimer laser comprises irradiating said substrate with said optical mask thereon in said atmosphere with an excimer laser which emits laser radiation having a wavelength selected from the group consisting of 193 nm, 248 nm, 308 nm, and 351 nm.
Claim 17
Dependent Claim
27 words
A method as claimed in claim 11, comprising the additional step of elevating a temperature of said substrate during irradiation of said substrate with said excimer laser.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1999-12-24 | 2000-06-24 | 2000-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-12-24 | 2004-06-24 | 2004-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-12-24 | 2008-06-24 | 2008-12-24 | $7700.00 | Window Closed / Lapsed |