Electrode and connector assembly and method for using same

• US 6,223,088 B1
• Filed: 11/09/1998
• Issued: 04/24/2001
• Est. Priority Date: 11/09/1998
• Status: Expired due to Term

• Current Assignee: Katecho, Inc.
• Original Assignee: Katecho, Inc.
• Inventors: Scharnberg, Lorne C., Walters, Warren R., Todd, William A. Jr., Heard, William L. II
• Primary Examiner(s): Schaetzle, Kennedy
• Application Number:
  US09/188,617
• Time in Patent Office: 897 Days
• Field of Search: 607/142, 607/149, 607/152, 607/153, 600/372, 600/386, 600/391, 600/392, 600/393, 439/789, 439/909
• US Class Current: 607/142
• CPC Class Codes: A61N 1/046 Specially adapted for shock therapy, e.g. defibrillation
• 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
• CPC Class Codes: Y10S 439/909 Medical use or attached to human body

Abstract

An electrode and connector are detachably connected to one another for use in defibrillating or pacing a patient'"'"'s heart. The connector includes two jaw members which clamp over a tab portion of the electrode. The jaw members include electrical contacts which engage and contact the conductive sheet within the electrode. This provides electrical continuity from the electrode through the connector to a lead wire.

Claims

1. In combination:

a defibrillation or pacing electrode comprising a dielectric backing layer, a conductive sheet layer, and a conductive gel layer;

the conductive sheet layer having a tab portion with an exposed tab contact, said tab portion and said exposed tab contact having a hole extending therethrough;

an electrically conductive wire having first and second opposite ends;

a connector having a first jaw member having an electrically conductive first jaw contact and a second jaw member having an electrically conductive second jaw contact, said jaw members being hinged together for hinged movement about a jaw axis from an open position wherein said first and second jaw contacts are spaced from one another to a closed position wherein said first and second jaw contacts are closely adjacent one another but free from engagement with one another;

the first and second jaw contacts being in electrical connection with said conductive wire when said first and second jaw members are in both said open position and in said closed position;

the first jaw member having a post thereon and the second jaw member having an opening therein;

the first and second jaw members being in said closed position embracing the tab portion therebetween with said post extending through the hole in the tab portion and at least partially through the opening in the second jaw member, and with at least one of said first jaw contact and the second jaw contact being in electrical contact with the exposed tab contact to create electrical continuity from the conductive sheet layer to the electrically conductive wire.

2. A combination according to claim 1 said one of said first and second jaw contacts is said first jaw contact.

3. A combination according to claim 1 wherein said one of said first and second jaw contacts is said second jaw contact.

4. A connector according to claim 1 wherein said first and second jaw members are reversible from a normal position wherein only said first jaw contact is in electrical contact with said exposed tab contact to a reversed position wherein only said second jaw contact is in electrical contact with said tab contact.

5. A connector for providing electrical connection between an electrical wire and a defibrillating or pacing electrode, said electrode comprising a dielectric backing layer, a conductive sheet layer, and a conductive gel layer;

the conductive sheet layer having a tab portion with an exposed tab contact, said tab portion and said exposed tab contact having a hole extending therethrough;

said connector comprising;

a first jaw member having an electrically conductive first jaw contact and a second jaw member having an electrically conductive second jaw contact, said jaw members being hinged together for hinged movement about a jaw axis from an open position to a closed position;

the first and second jaw contacts being in electrical connection with said conductive wire both when said first and second jaw members are in said open position and when said first and second jaw members are in said closed position;

the first jaw member having a post thereon and the second jaw member having an opening therein;

the first and second jaw members being movable to said closed position embracing the tab portion therebetween with said post extending through the hole in the tab portion and at least partially through the opening in the second jaw member, and with at least one of said first and second jaw contacts being in electrical contact with the exposed tab to create electrical continuity from the conductive sheet layer to the electrically conductive wire.

6. A connector according to claim 5 wherein said first and second jaw members are reversible from a normal position wherein only said first jaw contact is in electrical contact with said exposed tab contact to a reversed position wherein only said second jaw contact is in electrical contact with said exposed tab contact.

7. A method for connecting a defibrillation or pacing electrode to a lead wire, the electrode comprising a dielectric backing sheet, a conductor sheet, and a conductive adhesive sheet, the conductor sheet having a tab portion protruding from the electrode and having a first face, an opposite second face, and an exposed tab contact thereon, said method comprising:

taking a connector comprising a first jaw member having a first jaw contact and a second jaw member with a second jaw contact, said first and second jaw contacts being in electrical contact with said lead wire;

moving said first and second jaw members to an open position wherein said first and second jaw contacts are spaced from one another;

placing said tab portion between said first and second jaw contacts so that said first face of said tab portion faces said first jaw member and said second face of said tab portion faces said second jaw member when said first and second jaw members are in said open position;

moving said first and second jaw members to a locked position embracing said tab portion therebetween with at least one of said first and second jaw contacts in electrical contact with said tab contact to provide electrical continuity from said lead wire to said conductor sheet;

maintaining both of said first and second jaw contacts in electrical connection with said lead wire when said first and second jaw members are in both of said open and said locked positions placing said electrode on patient'"'"'s chest and defibrillating or pacing said patient'"'"'s heart.

8. A method according to claim 7 and further comprising reversing the position of said first and second jaw members during said placing step so that said first face of said tab portion faces said second jaw member and said second face of said tab faces said first jaw member.

9. A method according to claim 8 wherein said tab contact includes a tab contact hole extending therethrough, one of said first and second jaw contacts includes a jaw contact hole therein and the other of said first and second contacts includes a post thereon, said moving step further comprising moving said post through said tab contact hole and at least partially through said jaw contact hole to provide positive physical attachment of said connector to said electrode.

10. A method according to claim 7 wherein said tab contact includes a tab contact hole extending therethrough, one of said first and second jaw contacts includes a jaw contact hole therein and the other of said first and second contacts includes a post thereon, said moving step further comprising moving said post through said tab contact hole and at least partially through said jaw contact hole to provide positive physical attachment of said connector to said electrode.