Disposable electrode

• US 4,243,051 A
• Filed: 01/08/1979
• Issued: 01/06/1981
• Est. Priority Date: 01/08/1979
• Status: Expired due to Term

• Current Assignee: Com Dev Limited (Honeywell International Inc.), Johnson & Johnson
• Original Assignee: Johnson & Johnson
• Inventors: Wittemann, Robert F.
• Primary Examiner(s): Cohen, Lee S.
• Application Number:
  US06/001,501
• Time in Patent Office: 729 Days
• Field of Search: 128/639-641, 128/644, 128/303.13, 128/783, 128/798, 128/802, 128/803
• US Class Current: 607/152
• CPC Class Codes: A61N 1/0456 Specially adapted for transcutaneous electrical nerve stimulation [TENS]
• CPC Class Codes: A61N 1/048 Electrodes characterised by a specific connection between lead and electrode
• CPC Class Codes: A61N 1/0492 Patch electrodes A61N1/0412, A61N1/0428 take precedence

Abstract

A disposable electrode includes a fabric backing and a conductive mesh layer laminated thereto. A conductive polymer adhesive interfaces the conductive mesh with the skin of the patient. In order to promote uniform current density, connection to external apparatus occurs by means of a stranded wire which meets the mesh at a point and extends laterally therefrom along the electrode, intermediate the mesh and the adhesive.

Claims

1. A transcutaneous electrode providing electrical contact with a patient'"'"'s skin, having substantial uniformity of current density and resistance to physical deformation comprising:

(a) a conductive member having upper and lower surfaces and generally defining the configuration of said electrode;

(b) an electrically conductive adhesive material, electrically and physically connected to and covering the lower surface of said conductive member, for interfacing said conductive member with the patient'"'"'skin;

(c) electrical connection means for physically and electrically coupling said conductive member with an external electrical apparatus, said connection means including an electrical conductor joining said conductive member at a contact point along a side of said conductive member, thence extending away from said point substantially across the lower surface of said conductive member, said electrical conductor being in electrically conductive relation with said conductive member substantially across said lower surface; and

(d) an electrically insulating tape reinforcing means overlaying the full length of said electrical conductor and simultaneously being bonded to said lower surface.

2. An electrode as described in claim 1 wherein said conductive member comprises an electrically conductive mesh material, said electrical conductor is wire, and said electrode further comprises a top overlayment insulator pad laminated onto and substantially co-extensive with said upper surface.