← Back to Patent Explorer
US5237995A Expired / Lapsed US ⏱️ 0.0 years remaining

Concentric electrode for use in detecting low level bioelectric signals

Assignee: ALLEGHENY-SINGER RESEARCH INSTITUTE A NON-PROFIT CORP OF COMMONWEALTH OF
•
Filing: 1991-03-26
•
Granted: 1993-08-24
•
Expires: 2011-03-26
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract The present invention is directed to an electrode for use in measuring low level signals amidst competing noise signals. The electrode includes an electrically non-conductive substrate having a closed loop of electrical conductive and adhesive material carried by the substrate which defines therein an open area on the substrate. A first electrically conductive terminal is embedded within the closed loop of electrically conductive and adhesive material. Within the open area is an inner mass of electrically conductive and adhesive material. The inner mass of electrically conductive and adhesive material is spaced from the closed loop. The electrode also includes a second electrically conductive terminal which is embedded with the inner mass of electrically conductive and adhesive material. The electrode includes a first contact device for making electrical contact with the first terminal and a second contact device for making electrical contact with the second terminal.

Inventors

  • 👤 Gerald G. Cano

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 18:04
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/24; A61B5/25; A61B5/251; A61B5/257; A61B5/259; A61B5/279; A61B5/28

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 126 words
An electrode particularly useful in acquiring low level signals on a surface, said electrode comprising: a) an electrically non-conductive substrate; b) a closed loop of electrically conductive and adhesive material carried by said substrate and defining therein an open area on said substrate; c) a first electrically conductive terminal embedded within said closed loop of electrically conductive and adhesive material; d) an inner mass of electrically conductive and adhesive material carried by said substrate within said open area and spaced from said closed loop; e) a second electrically conductive terminal embedded within said inner mass of electrically conductive and adhesive material; f) first contact means for making electrical contact with said first terminal; and g) second contact means for making electrical contact with said second terminal.
Claim 2
Dependent Claim 126 words
An electrode particularly useful in acquiring low level signals on a surface, said electrode comprising: a) an electrically non-conductive substrate; b) a closed loop of electrically conductive and adhesive material carried by said substrate and defining therein an open area on said substrate; c) a first electrically conductive terminal embedded within said closed loop of electrically conductive and adhesive material; d) an inner mass of electrically conductive and adhesive material carried by said substrate within said open area and spaced from said closed loop; e) a second electrically conductive terminal embedded within said inner mass of electrically conductive and adhesive material; f) first contact means for making electrical contact with said first terminal; and g) second contact means for making electrical contact with said second terminal.
Claim 3
Dependent Claim 19 words
The electrode of claim 1 wherein said electrically conductive and adhesive material is a highly conductive solid electrode gel.
Claim 4
Dependent Claim 15 words
The electrode of claim 1 wherein said terminals are each formed of the same material.
Claim 5
Dependent Claim 13 words
The electrode of claim 1 wherein said terminals are each formed of metal.
Claim 6
Dependent Claim 14 words
The electrode of claim 1 wherein said terminals are each formed of silver-silver chloride.
Claim 7
Dependent Claim 13 words
The electrode of claim 1 wherein said terminals are supported by said substrate.
Claim 8
Dependent Claim 12 words
The electrode of claim 1 wherein said closed loop is a ring.
Claim 9
Dependent Claim 27 words
The electrode of claim 1 wherein said terminals are supported by said electrically conductive and adhesive material and are not in direct physical contact with said substrate.

References Cited (Backward Citations)

US3868947A Cited
US4082087A Cited
US4362165A Cited
US4448199A Cited
US4583549A Cited
US4763660A Cited
US4955381A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1996-08-23 1997-02-22 1997-08-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2000-08-23 2001-02-22 2001-08-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2004-08-23 2005-02-22 2005-08-24 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag