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US4832036A
Expired / Lapsed
US
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Medical electrode
Assignee: American Hospital Supply Corp
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Filing: 1985-05-13
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Granted: 1989-05-23
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Expires: 2005-05-13
Abstract
Abstract In contrast to the usual practice of bridging a medical electrode conductor to the skin of a patient by way of an interposed electrolyte, the present invention interposes the medical electrode conductor between the skin and an electrolyte which is larger in area than the interposed conductor.
Inventors
- 👤 James V. Cartmell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:22
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/24; A61B5/25; A61B5/251; A61B5/257; A61B5/259; A61B2562/00; A61B2562/02; A61B2562/0209; A61B2562/0215; A61B2562/0217
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
114 words
A medical electrode for connection to peripheral equipment comprising a disposable portion and a reusable portion, said disposable portion comprising cover means and an electrolyte means having one surface region thereof adhered to one face of said cover means, said reusable portion comprising a metallic part arranged to be removably adhered to a second surface region of said electrolyte means, said metallic part including a lead portion for connection to said peripheral equipment, said electrode adapted for attachment to the skin of a patient by interposing said metallic part between said second surface region and the skin of the patient and by applying a third surface region of said electrolyte means to said skin.
Claim 2
Dependent Claim
114 words
A medical electrode for connection to peripheral equipment comprising a disposable portion and a reusable portion, said disposable portion comprising cover means and an electrolyte means having one surface region thereof adhered to one face of said cover means, said reusable portion comprising a metallic part arranged to be removably adhered to a second surface region of said electrolyte means, said metallic part including a lead portion for connection to said peripheral equipment, said electrode adapted for attachment to the skin of a patient by interposing said metallic part between said second surface region and the skin of the patient and by applying a third surface region of said electrolyte means to said skin.
Claim 3
Dependent Claim
17 words
The medical electrode of claim 1 wherein said cover means comprises a pliant and imperforate plastic sheet.
Claim 4
Dependent Claim
23 words
The medical electrode of claim 2 wherein said cover means further comprises a layer of adhesive disposed on one face of said sheet.
Claim 5
Dependent Claim
13 words
The medical electrode of claim 3 wherein said adhesive is a pressure-sensitive adhesive.
Claim 6
Dependent Claim
14 words
The medical electrode of claim 1 wherein said electrolyte means comprises a conductive adhesive.
Claim 7
Dependent Claim
13 words
The medical electrode of claim 5 wherein said conductive adhesive is a hydrogel.
Claim 8
Dependent Claim
13 words
The medical electrode of claim 6 wherein said hydrogel is a urethane hydrogel.
Claim 9
Dependent Claim
50 words
The medical electrode of claim 1 wherein said cover means has a surface area substantially exceeding the size of said first surface portion whereby a margin of said cover means lies outside said first surface portion, and including adhesive means for attaching said margin to the skin of said patient.
Claim 10
Dependent Claim
36 words
The medical electrode of claim 8 wherein said lead portion is adapted to be interposed between said margin and the skin of said patient and wherein said adhesive means attaches said margin to said lead portion.
Claim 11
Dependent Claim
14 words
The medical electrode of claim 1 wherein said metallic part is substantially pure silver.
Claim 12
Dependent Claim
17 words
The medical electrode of claim 1 wherein said metallic part comprises substantially pure silver having chlorided surfaces.
Claim 13
Dependent Claim
29 words
The medical electrode of claim 11 wherein said lead portion comprises a metal other than silver, and including solder affixing said metal other than silver to said metallic part.
Claim 14
Dependent Claim
15 words
The medical electrode of claim 12 wherein said solder is covered by a surrounding sheath.
Claim 15
Dependent Claim
15 words
The medical electrode of claim 13 wherein said surrounding sheath is shrink-fitted about said solder.
Claim 16
Dependent Claim
28 words
The medical electrode of claim 1 wherein said cover means comprises a pliant sheet and wherein said electrolyte means is located between edge margins of said cover means.
Claim 17
Dependent Claim
24 words
The medical electrode of claim 1 wherein said second surface region is small is relation to the third surface region of said electrolyte means.
Claim 18
Dependent Claim
30 words
The medical electrode of claim 16 wherein said cover means has a circular edge margin, and said electrolyte means contacts an area of said adhesive spaced within said edge margin.
Claim 19
Dependent Claim
54 words
The medical electrode of claim 1 wherein the adhesion of said electrolyte means to said cover means is greater than the adhesion that will occur when said electrolyte means is applied to the skin of a patient and is greater than the adhesion that will occur between said electrolyte means and said metallic part.
Claim 20
Dependent Claim
21 words
The medical electrode of claim 1 wherein the opposite face of said cover means is substantially without tack to human skin.
Claim 21
Dependent Claim
21 words
The medical electrode of claim 1 wherein said electrolyte means comprises an adhesive rendered conductive by the inclusion of sodium chloride.
Claim 22
Dependent Claim
22 words
The medical electrode of claim 1 wherein said electrolyte means comprises an adhesive rendered conductive by the inclusion of a sodium sulphate.
Claim 23
Dependent Claim
15 words
The medical electrode of claim 1 wherein said metallic part comprises an electrically conductive paint.
Claim 24
Dependent Claim
21 words
The medical electrode of claim 2 wherein said lead portion comprises a strip of non-conductive material painted with said conductive paint.
Claim 25
Dependent Claim
21 words
The medical electrode of claim 1 wherein said metallic part comprises an electrically conductive paint adhered to an electrically conductive plastic.
Claim 26
Dependent Claim
25 words
The medical electrode of claim 24 including a sheet of non-electrically conductive material interposed between said electrically conductive plastic and the skin of the patient.
Claim 27
Dependent Claim
24 words
The medical electrode of claim 1 including a sheet of non-electrically conductive material interposed between said lead portion and the skin of the patient.
Claim 28
Dependent Claim
66 words
The medical electrode of claim 1 further including a narrow non-conductive sheet lying over said metallic part and along said lead portion so that said narrow, non-conductive sheet will, when said electrode is attached to the skin of a patient, insulate said metallic part from the skin of the patient without substantially reducing the surface area of said third surface region engagable with the patient's skin.
Claim 29
Dependent Claim
78 words
In the method of utilization of a medical electrode comprising a cover means and a conductive adhesive having a first surface region adhered to one face of said cover means, the steps of interposing between the skin of a patient and a second surface region of said conductive adhesive a metallic part having a lead wire adapted for connection to peripheral equipment, and applying a third surface region of said conductive adhesive to the skin of the patient.
Claim 30
Dependent Claim
78 words
In the method of utilization of a medical electrode comprising a cover means and a conductive adhesive having a first surface region adhered to one face of said cover means, the steps of interposing between the skin of a patient and a second surface region of said conductive adhesive a metallic part having a lead wire adapted for connection to peripheral equipment, and applying a third surface region of said conductive adhesive to the skin of the patient.
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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) | 1992-05-22 | 1992-11-21 | 1993-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-22 | 1996-11-21 | 1997-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-22 | 2000-11-21 | 2001-05-23 | $7700.00 | Window Closed / Lapsed |