Positive locking biomedical electrode and connector system

• US 5,372,125 A
• Filed: 08/13/1993
• Issued: 12/13/1994
• Est. Priority Date: 08/13/1993
• Status: Expired due to Term

• Current Assignee: Ludlow Corporation (Mallinckrodt plc)
• Original Assignee: Ludlow Corporation (Mallinckrodt plc)
• Inventors: Lyons, Joseph N.
• Primary Examiner(s): Cohen, Lee S.
• Assistant Examiner(s): GREEN, BRIAN
• Application Number:
  US08/106,140
• Time in Patent Office: 487 Days
• Field of Search: 128/639, 128/640, 128/641, 128/642, 128/643, 128/644, 607/115, 607/116, 607/119, 607/129, 607/152, 607/149, 607/153, 439/296, 439/347, 439/372, 439/625, 439/909, 439/725, 439/729, 606/32
• US Class Current: 600/396
• CPC Class Codes: A61B 5/257 using adhesive means, e.g. adhesive pads or tapes
• CPC Class Codes: A61B 5/259 using conductive adhesive means, e.g. gels
• CPC Class Codes: Y10S 439/909 Medical use or attached to human body

Abstract

A biomedical monitoring or stimulating electrode that adheres to a person'"'"'s skin is disclosed. The electrode is made of a thin, flat flexible material and includes a die-cut patch having a non-conductive adhesive coating applied on one side of the patch, a foundation component formed into four integral functional areas, a conductive component made up of an electrically conductive material with three contiguous portions, and a conductive media. Also disclosed is a connector that interfaces with a tab portion of the electrode. The connector includes an electrically conductive element having an inclined surface upon which the tab of the electrode rests. A slider is movable between two positions such that when in its closed position, the electrode neck and head is trapped in the connector and the slider exerts a force on the inclined surface of a cavity of the connector, providing electrical connection to electrode. Thus, the cavity and firm compression act to prevent the electrode from becoming disengaged from the connector.

Claims

1. A connector for mechanically and electrically interfacing with a biomedical electrode, the electrode having an electrically conductive tab portion, the connector comprising:

a. a slider having an undersurface with an inclined plane; and

b. a conductor component having a cavity with an electrically-conductive surface with an inclined plane, the angle of incline of the slider undersurface being equal to the angle of incline of the surface of the cavity, wherein the electrically conductive tab portion of the electrode is disposed adjacent to and in an abutting relationship to the inclined surface of the cavity, wherein the slider, when moved to close the cavity, has its inclined undersurface interface with the inclined plane of the cavity such that the slider exerts a retaining force on the electrically conductive tab portion of the electrode to prevent movement of the electrically conductive tab portion.

2. The connector of claim 1, further comprising:

a base having a pair of opposing upper channels formed throughout the length of an upper portion of the base, the slider being adapted to travel within the upper channels of the base between an open position and a closed position, the base also having a pair of opposing lower channels formed throughout the length of a lower portion of the base, the conductor component being adapted to be inserted within the base within the lower channels of the base.

3. A biomedical electrode monitoring or stimulating system, comprising:

a. an electrode having an electrically-conductive tab portion; and

b. a connector for interfacing with the tab portion of the electrode, the connector including;

i. a slider having an undersurface with an inclined plane; and

ii. a conductor component having a cavity with an electrically-conductive surface with an inclined plane;

c. wherein the electrically conductive tab portion of the electrode is disposed adjacent to and in an abutting relationship to the inclined plane surface of the cavity, and wherein the slider is operable to be moved to a closed position wherein the inclined plane undersurface of the slider interfaces with the inclined plane surface of the cavity such that the slider exerts a retaining force on the electrically-conductive tab portion of the electrode to prevent any movement thereof.

4. The system of claim 3, wherein the connector further comprises:

a base having a pair of opposing upper channels formed throughout the length of an upper portion of the base, the slider being adapted to travel within the upper channels of the base, the base also having a pair of opposing lower channels formed throughout the length of a lower portion of the base, the conductor component being adapted to be inserted in the base within the lower channels of the base.

5. The system of claim 3, wherein the tab portion of the electrode further comprises a pathway portion and a head portion integral therewith, wherein the pathway portion is narrower than the head portion at the interface of the pathway portion with the head portion.

6. The system of claim 5, wherein the head portion is semicircular in shape.

7. The system of claim 5, wherein the cavity of the conductor component has a main portion and a neck portion that is narrower than the main portion at the interface of the cavity neck portion with the cavity main portion, wherein the electrode head portion is disposed for connection to the connector within the cavity main portion such that the electrode head portion is adjacent to and in an abutting relationship with the cavity main portion and the electrode pathway portion is adjacent to and in abutting relation to the cavity neck portion.

8. The system of claim 3, wherein the tab portion of the electrode has a throughbore formed therein at a predetermined location, and wherein the connector conductor component has a post integral with and rising above the inclined plane surface of the cavity, the throughbore being adapted to fit over, and be secured by, the post.

9. The system of claim 8, wherein the slider has a groove formed in the inclined plane undersurface, the groove being operable to contain the post therein when the slider is moved to a closed position.

10. The system of claim 3, wherein the electrode further comprises an electrically-conductive sensor portion integral with the tab portion.

11. The system of claim 10, wherein the electrode tab portion and electrode sensor portion are comprised of a conductive ink.

12. The system of claim 10, wherein the electrode further comprises a conductive media comprising an electrically-conductive material disposed adjacent to and in abutting relation to the electrode sensor portion, wherein the conductive media is operable to contact the skin of a human.