US4370984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-Ray transparent medical electrode
Assignee: Conmed Corp
•
Filing: 1981-03-23
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Granted: 1983-02-01
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Expires: 2001-03-23
Abstract
Abstract The signal conducting element of a medical electrode of the type bridged to skin by electrolyte and which is required to be X-ray transparent comprises a thin layer of a conductive paint adhered to a relatively thin supporting substrate, said substrate with adhered paint extending remotely from the electrolyte-to-skin interface for circuit connection and protected by a barrier which excludes electrolyte from the remote circuit connection.
Inventors
- 👤 James V. Cartmell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:59
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/24; A61B5/25; A61B5/271; A61B5/273; A61B5/274; A61B5/251; A61B5/257; A61B5/259; A61B5/279; A61B5/28; A61B5/316; A61B5/318; A61B5/321; A61B5/324; A61B2562/00; A61B2562/02; A61B2562/0209; A61B2562/0215; A61B2562/0217; A61B2562/12; A61B2562/125
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
4 words
A medical electrode comprising:
Claim 2
Dependent Claim
4 words
A medical electrode comprising:
Claim 3
Dependent Claim
77 words
an X-ray transparent conductor comprising a flexible, dimensionally stable, nonconductive plastic film, a layer of conductive silver paint adhered to one surface of said film and having a first exposed conductive portion and a second exposed conductive portion spaced from said first exposed conductive portion, and further comprising a continuous insulating covering over said paint between said exposed portions; a gel filled sponge engaging said first exposed conductive portion; and means securing said conductor to said sponge.
Claim 4
Dependent Claim
77 words
an X-ray transparent conductor comprising a flexible, dimensionally stable, nonconductive plastic film, a layer of conductive silver paint adhered to one surface of said film and having a first exposed conductive portion and a second exposed conductive portion spaced from said first exposed conductive portion, and further comprising a continuous insulating covering over said paint between said exposed portions; a gel filled sponge engaging said first exposed conductive portion; and means securing said conductor to said sponge.
Claim 5
Dependent Claim
41 words
The electrode of claim 1 wherein said conductor has a thickness in the range of 1-26 mils, said film having a thickness in the range of 1/2-20 mils and said silver paint having a thickness in the range of 1/2-6 mils.
Claim 6
Dependent Claim
28 words
The electrode of claim 1 wherein said means securing said conductor to said sponge comprises a cover sheet having an adhesive layer engaging said conductor and said sponge.
Claim 7
Dependent Claim
33 words
The electrode of claim 1 wherein said insulating covering comprises a layer of essentially moisture impermeable material covering said layer of conductive paint between said first exposed portion and said second exposed portion.
Claim 8
Dependent Claim
17 words
The electrode of claim 4 wherein said layer of essentially moisture impermeable material comprises an acrylate resin.
Claim 9
Dependent Claim
17 words
The electrode of claim 1 wherein said means securing said conductor to said sponge comprises an adhesive.
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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) | 1986-01-31 | 1986-08-02 | 1987-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-31 | 1990-08-02 | 1991-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-31 | 1994-08-02 | 1995-02-01 | $7700.00 | Window Closed / Lapsed |