US3845757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Biomedical monitoring electrode
Assignee: 3M Co
•
Filing: 1972-07-12
•
Granted: 1974-11-05
•
Expires: 1992-07-12
Abstract
Abstract A pregelled intensive care electrode is formed from two layers of soft, conformable foam material having a rigid plastic supporting layer between the foam layers. A conductive connector is in contact with an open-celled spongy material filled with an electrolyte which provides means for connecting the electrode to monitoring devices and measuring the electrical impulses from a patient''s skin. The biomedical monitoring electrode is held in place on the patient''s skin by means of a hypo-allergenic pressure sensitive adhesive.
Inventors
- 👤 J Weyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:24
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/41; A61B5/411; A61B5/24; A61B5/25; A61B5/251; A61B5/257; A61B5/263; A61B5/265; A61B5/266; A61B5/271; A61B5/273; A61B5/274; A61B2562/00; A61B2562/02; A61B2562/0209; A61B2562/0215; A61B2562/0217
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
119 words
A medical monitoring electrode for attachment to external monitoring means, said electrode comprising a soft resilient layer having an aperture therethrough, said layer having on one side thereof a coating of hypoallergenic adhesive for securing said electrode to a patient''s skin and having within said aperture a spongy, open-celled foam filled with a conductive electrolyte, a rigid plastic disc adhered to said layer opposite said adhesive coating and overlying said aperture, said opencelled foam being adhesively retained within said aperture, and an electrically conductive snap carried by said plastic disc and extending above the top face thereof for connection with an external monitoring means and being in electrical contact with said electrolyte at the opposite face of said disc.
Claim 2
Dependent Claim
119 words
A medical monitoring electrode for attachment to external monitoring means, said electrode comprising a soft resilient layer having an aperture therethrough, said layer having on one side thereof a coating of hypoallergenic adhesive for securing said electrode to a patient''s skin and having within said aperture a spongy, open-celled foam filled with a conductive electrolyte, a rigid plastic disc adhered to said layer opposite said adhesive coating and overlying said aperture, said opencelled foam being adhesively retained within said aperture, and an electrically conductive snap carried by said plastic disc and extending above the top face thereof for connection with an external monitoring means and being in electrical contact with said electrolyte at the opposite face of said disc.
Claim 3
Dependent Claim
33 words
The electrode of claim 1 having in addition a layer of foam covering the rigid plastic disc and having an aperture therethrough for the connection of the conductive snap to the external monitor.
Claim 4
Dependent Claim
15 words
The electrode of claim 1, where said electrically conductive snap passes through said plastic disc.
Claim 5
Dependent Claim
23 words
The electrode of claim 1, where said snap and said disc are a unitary plastic body and have a conductive layer disposed thereon.
Claim 6
Dependent Claim
31 words
The electrode of claim 1 wherein the means for adhesively retaining said open-celled foam within said aperture comprises a coating of adhesive on the undersurface of said disc overlying said aperture.
References Cited (Backward Citations)
US3170459A
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US3545432A
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US3518984A
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US3599629A
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US3610229A
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US3587565A
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US3696807A
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US3701346A
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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) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |