US4583548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bioelectric electrode-arrangement
Assignee: CR Bard Inc
•
Filing: 1984-03-28
•
Granted: 1986-04-22
•
Expires: 2004-03-28
Abstract
Abstract A bioelectric electrode arrangement is comprised of an electrode piece consisting of a metal and/or an electrically conductive carbon containing material whereby one side of the electrode piece to be intended for the skin-contact contains an ionic-conductive contact-electrolyte layer. The contact-electrolyte layer contains an iodine ions-forming salt of a metal which is the same as also present at least in the interfacial regions of the electrode immediately adjacent to the contact-electrolyte layer.
Inventors
- 👤 Walter Schmid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:58
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/24; A61B5/25; A61B5/263; A61B2562/00; A61B2562/02; A61B2562/0209; A61B2562/0215; A61B2562/0217
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
117 words
A bioelectric electrode assembly comprising an electrode piece and an ionically conductive contact electrolyte layer as a coating on said electrode piece, said electrode piece comprising an electrically conductive material selected from the group consisting of electrically conductive carbon black, electrically conductive graphite, and mixtures thereof, and triiodomethane blended therewith, said ionically conductive contact electrolyte layer being in electrically conductive contact with said electrode piece an adapted for placing onto the skin to establish electrically conductive contact therewith, an iodine ion forming substance distributed throughout said contact electrolyte layer, said iodien ion forming substance being an iodide salt selected from the goup consisting of zinc iodine, silver iodide, copper iodide, potassium iodide, calcium iodide, and mixtures thereof.
Claim 2
Dependent Claim
117 words
A bioelectric electrode assembly comprising an electrode piece and an ionically conductive contact electrolyte layer as a coating on said electrode piece, said electrode piece comprising an electrically conductive material selected from the group consisting of electrically conductive carbon black, electrically conductive graphite, and mixtures thereof, and triiodomethane blended therewith, said ionically conductive contact electrolyte layer being in electrically conductive contact with said electrode piece an adapted for placing onto the skin to establish electrically conductive contact therewith, an iodine ion forming substance distributed throughout said contact electrolyte layer, said iodien ion forming substance being an iodide salt selected from the goup consisting of zinc iodine, silver iodide, copper iodide, potassium iodide, calcium iodide, and mixtures thereof.
Claim 3
Dependent Claim
24 words
An electrode assembly as set forth in claim 1 wherein said electrode piece constitutes a sintered mass of said conductive material and said triiodomethane.
Claim 4
Dependent Claim
30 words
The structure as set forth in claim 2 and furthe comprising carbon fibers distributed through said sintered mass for enhancing conductivity and for enhancing the strength of said sintered mass.
Claim 5
Dependent Claim
34 words
An electrode assembly as set forth in claim 1 and further comprising a binder, and wherein said binder is distributed throughout said conductive material of said electrode piece for enhancing the mechanical strength thereof.
Claim 6
Dependent Claim
17 words
The structure as set fourth in claim 4 and further comprising carbon fibers distributed throughout said binder.
Claim 7
Dependent Claim
29 words
The electrode assembly as set forth in claim 1 wherein said electrode piece is shaped to include a terminal post integrally formed with as a part of said piece.
Claim 8
Dependent Claim
40 words
The electrode assembly as set forth in claim 1 and further comprising a terminal post for connection to an instrument for measuring bioelectric signals, and a heat-sealable foil securing said terminal post to said electrode piece in electrical contact therewith.
References Cited (Backward Citations)
US3137291A
Cited
US3265638A
Cited
US3420223A
Cited
US3468303A
Cited
US3490440A
Cited
US3574305A
Cited
US3669110A
Cited
US3993049A
Cited
DE2838866A1
Cited
US4375219A
Cited
DE3136366A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-21 | 1989-10-21 | 1990-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-21 | 1993-10-21 | 1994-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-21 | 1997-10-21 | 1998-04-22 | $7700.00 | Window Closed / Lapsed |