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US3862633A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrode

Assignee: Individual
•
Filing: 1974-05-06
•
Granted: 1975-01-28
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Expires: 1994-05-06
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Abstract

Abstract A biomedical electrode for use in cooperation with a signalreceiving apparatus is the subject matter of this invention. The instant electrode is one which is particularly adapted for use in observing certain phenomena of the subject by observing electrical signals one the surface of the subject. The electrode includes an open-sided, resilient container, with a microporous diaphragm closing the open side. An electrolyte is contained in the container and permeates the diaphragm to unite with skin fluids of the subject. The container contains a filling aperture on the side opposite the open side. An annular sealing flange is formed integral with the container and extends into the filling aperture. A terminal plug is positioned in the filling aperture in sealing engagement with the annular sealing flange to seal closed the filling aperture.

Inventors

  • 👤 Kenneth C Allison
  • 👤 William H Cooley

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 16:12
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/24; A61B5/25; A61B5/263; A61B5/266; A61B5/251; A61B5/257; A61B5/271; A61B5/273; A61B5/274; A61B2562/00; A61B2562/02; A61B2562/0209; A61B2562/0217

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 181 words
A biomedical electrode for use on a subject for receiving electrical signals from said subject, comprising: a resilient container having an open side, a thin microporous diaphragm sealingly secured to the container closing said open side, an electrolyte in the container in contact with the diaphragm permeating the diaphragm to wet the outside surface of the diaphragm to have direct contact with the surface of a subject through the diaphragm between the surface and the electrolyte in the container, said container having a filling aperture, a resilient annular sealing flange formed integral with the container and extending inwardly to the filling aperture, and a terminal plug mounted in said filling aperture in sealing engagement with the annular sealing flange and having a portion in contact with the electrolyte to form a half cell therewith, said terminal plug locked in said filling aperture by said sealing flange, said terminal plug including a head extending exteriorly of the container, and a body positioned in the filling aperture and in sealing engagement with the resilient annular sealing flange to seal closed the filling aperture.
Claim 2
Dependent Claim 181 words
A biomedical electrode for use on a subject for receiving electrical signals from said subject, comprising: a resilient container having an open side, a thin microporous diaphragm sealingly secured to the container closing said open side, an electrolyte in the container in contact with the diaphragm permeating the diaphragm to wet the outside surface of the diaphragm to have direct contact with the surface of a subject through the diaphragm between the surface and the electrolyte in the container, said container having a filling aperture, a resilient annular sealing flange formed integral with the container and extending inwardly to the filling aperture, and a terminal plug mounted in said filling aperture in sealing engagement with the annular sealing flange and having a portion in contact with the electrolyte to form a half cell therewith, said terminal plug locked in said filling aperture by said sealing flange, said terminal plug including a head extending exteriorly of the container, and a body positioned in the filling aperture and in sealing engagement with the resilient annular sealing flange to seal closed the filling aperture.
Claim 3
Dependent Claim 144 words
A biomedical electrode for use on a subject for receiving electrical signals from said subject as defined in claim 1 wherein the terminal plug is elongated, said head defines a portion of a sphere and is adapted for connection to a lead for electrical connection to an instrument, and a shoulder is formed integral with said portion of a sphere; and said body includes a tapered shank having its wider portion formed integral with the shoulder, a seal face formed integral with the tapered shank adjacent to the narrower end of said tapered shank, said seal face being adapted for sealing engagement with the resilient annular sealing flange, and a nose formed integral with the seal face and being adapted for contact with the electrolyte, said nose having its free end rounded to facilitate insertion of the terminal plug through the annular sealing flange.
Claim 4
Dependent Claim 78 words
A biomedical electrode for use on a subject for receiving electrical signals from said subject as defined in claim 2 wherein the distance from the shoulder to the seal face is greater than the length of the filling aperture but less than the length of the filling aperture plus the width of the sealing flange, and said diameter of the tapered shank adjacent to the seal face is greater than the internal diameter of the annular sealing flange.
Claim 5
Dependent Claim 63 words
A biomedical electrode for use on a subject for receiving electrical signals from said subject as defined in claim 1 wherein the terminal plug is an elongated terminal plug, said head of the terminal plug is adapted for connection to a lead for electrical connection to an instrument, and said body includes a tapered shank having its wider portion adjacent to the head.
Claim 6
Dependent Claim 56 words
A biomedical electrode for use on a subject for receiving electrical sigNals from said subject as defined in claim 4 wherein the body has a seal face formed integral with the tapered shank adjacent to the narrower end of the tapered shank, said seal face is adapted for sealing engagement with the resilient annular sealing flange.
Claim 7
Dependent Claim 38 words
A biomedical electrode for use on a subject for receiving electrical signals from said subject as defined in claim 1 wherein the terminal plug has a connector receptacle for receipt of a connector to make electrical contact therewith.
Claim 8
Dependent Claim 42 words
A biomedical electrode for use on a subject for receiving electrical signals from said subject as defined in claim 6 wherein the container includes a radial terminal groove in the side spaced away from said open side for receipt of a lead.
Claim 9
Dependent Claim 49 words
A biomedical electrode for use on a subject for receiving electrical signals from said subject as defined in claim 1 wherein the head of the terminal plug is held in sealing engagement with the container to form a seal therebetween, thereby forming a secondary seal for the filling aperture.
Claim 10
Dependent Claim 112 words
A biomedical electrode for use on a subject for receiving electrical signals from said subject as defined in claim 1 wherein the terminal plug is an elongated terminal plug; said head of the terminal plug is adapted for connection to a lead for electrical connection to an instrument; and said body includes a tapered shank having its wider portion adjacent to the head, a seal face formed integral with the tapered shank adjacent to the narrower end of the tapered shank, said seal face being adapted for sealing engagement with the resilient annular sealing flange, and an elongated nose formed integral with the seal face and being adapted for contacting the electrolyte.
Claim 11
Dependent Claim 73 words
A biomedical electrode for use on a subject for receiving electrical signals from said subject as defined in claim 1 wherein the head is solid and has a rounded exterior, said body is threaded over a portion of its length for threaded sealing engagement with the resilient annular sealing flange to seal closed the filling aperture, and the head sealingly engages the container to form a secondary seal therewith for the filling aperture.
Claim 12
Dependent Claim 51 words
A biomedical electrode for use on a subject for receiving electrical signals from said subject as defined in claim 1 wherein the annular sealing flange is tapered and has its thinner portion adjacent to the interior thereof, and said body is threaded for threaded sealing engagement with the annular sealing flange.
Claim 13
Dependent Claim 97 words
A biomedical electrode for use on a subject for receiving electrical signals from said subject as defined in claim 1 wherein the annular sealing flange is tapered and having its thinnest portion adjacent to the interior thereof, said head is solid and has a rounded exterior surface, said head includes a tool recess in its surface spaced away from the body for receipt of a tool for rotating said plug, and said body is threaded over a portion of its length for threaded sealing engagement with the resilient annular sealing flange to seal closed the filling aperture.
Claim 14
Dependent Claim 95 words
A biomedical electrode for use on a subject for receiving electrical signals from said subject as defined in claim 1 wherein the container includes a radial terminal groove in the side spaced away from the open side for receipt of a lead, said terminal plug has a connector receptacle for receipt of a connector to make electrical contact therewith, a flat head connector mounted in the connector receptacle, and a lead electrically connected to the connector and having a portion lying in the radial terminal groove to provide a low profile for the biomedical electrode.
Claim 15
Dependent Claim 174 words
A biomedical electrode for use on a subject for receiving electrical signals from said subject as defined in claim 1 wherein the container includes a radial terminal groove in the side spaced away from the open side for receipt of a lead; said terminal plug has a connector receptacle for receipt of a connector to make electrical contact therewith; said head of the terminal plug is flat anD adapted for engagement with the container; said terminal plug body includes a tapered shank having its wider portion adjacent to the head, a seal face formed integral with the tapered shank adjacent to the narrower end of the tapered shank, said seal face being adapted for sealing engagement with the resilient annular sealing flange, and an elongated nose formed integral with the sealing face and adapted for contacting the electrolyte; a flat head connector mounted in the connector receptacle; and a lead electrically connected to the connector and having a portion lying in the radial terminal groove to provide a low profile for the biomedical electrode.

References Cited (Backward Citations)

US2555037A Cited
US3027333A Cited
US3590810A Cited
US3580240A Cited
US3659586A Cited
US3602216A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-01-27 1978-07-29 1979-01-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-01-27 1982-07-29 1983-01-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-01-27 1986-07-29 1987-01-28 $7700.00 Window Closed / Lapsed

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