Lead wire attachment method, electrode, and spot welder

• US 20020138101A1
• Filed: 03/18/2002
• Published: 09/26/2002
• Est. Priority Date: 03/16/2001
• Status: Active Grant

• Current Assignee: Nihon Kohden Corporation
• Original Assignee: Nihon Kohden Corporation
• Inventors: Kurata, Tohru, Suda, Shin
• Granted Patent: US 7,010,856 B2
• Time in Patent Office: Days
• US Class Current: 607/2
• CPC Class Codes: A61N 1/0408 Use-related aspects
• CPC Class Codes: A61N 1/0456 Specially adapted for transcutaneous electrical nerve stimulation [TENS]
• 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 1/0551 Spinal or peripheral nerve electrodes
• CPC Class Codes: Y10T 29/49002 Electrical device making
• CPC Class Codes: Y10T 29/49117 Conductor or circuit manufacturing
• CPC Class Codes: Y10T 29/49174 Assembling terminal to elongated conductor
• CPC Class Codes: Y10T 29/49179 by metal fusion bonding
• CPC Class Codes: Y10T 29/49208 by assembling plural parts
• CPC Class Codes: Y10T 29/49213 Metal

Abstract

A copper plate 2 is mounted on a titanium electrode element by spot welding, and a lead wire 3a is attached to the copper ate 2 by solder 4.

Claims

1. A method for attaching a lead wire comprising the steps of:

attaching the lead wire to a first member made from titanium;

attaching a second member made from solderable material to the first member by spot welding; and

attaching the lead wire to the second member by soldering.

2. The lead wire attachment method according to claim 1, wherein one of a pair of welding electrodes to be used for spot welding is brought into contact with the first member, and a contact surface of the electrode is formed so as to become larger than a contact surface present between the first and second members.

3. The lead wire attachment method according to claim 1, wherein the first member is an electrode element of a biomedical electrostimulating electrode.

4. The lead wire attachment method according to claim 3, wherein the biomedical electrostimulating electrode is an electrode for electroanesthesia.

5. The lead wire attachment method according to claim 3, wherein the biomedical electrostimulating electrode is an electrode for urinary incontinence treatment.

6. The lead wire attachment method according to claim 5, wherein the electrode element is annular, and the second member is to be attached to an interior circumferential surface of the first member.

7. The lead wire attachment method according to claim 3, wherein the biomedical electrostimulating electrode is an electrode for defibrillation.

8. The lead wire attachment method according to claim 3, wherein the biomedical electrostimulating electrode is an electrode for transcutaneous electrical nerve stimulation.

9. An electrode comprising:

a first member made from titanium;

a second member attached to the first member by spot welding and made from solderable material; and

a lead wire soldered at one end thereof to the second member.

10. The electrode according to claim 9, wherein the first member is an electrode element of a biomedical electrostimulating electrode.

11. The electrode according to claim 10, wherein the biomedical electrostimulating electrode is an electrode for electroanesthesia.

12. The electrode according to claim 10, wherein the biomedical electrostimulating electrode is an electrode for urinary incontinence treatment.

13. The electrode according to claim 12, wherein the electrode element is annular, and the second member is to be attached to an interior circumferential surface of the first member.

14. The electrode according to claim 10, wherein the biomedical electrostimulating electrode is an electrode for defibrillation.

15. The electrode according to claim 10, wherein the biomedical electrostimulating electrode is an electrode for transcutaneous electrical nerve stimulation.

16. A spot welder comprising:

a pair of welding electrodes for clamping two members, letting current flow therebetween and welding said two members;

wherein a surface of one of said welding electrodes to contact with one of said members is sufficiently larger than that of the other welding electrode to contact with the other member so as not to cause damage by electric spark.

17. A method for welding two members with a spot welder comprising a first and a second welding electrodes for clamping said two members, letting current flow therebetween and welding said two members, wherein a surface of said first welding electrode to contact with one of said members is sufficiently larger than that of the second welding electrode to contact with the other member so as not to cause damage by electric spark, comprising steps of:

clamping a titanium member and a copper plate with said first and second welding electrodes so that the surface of said first welding electrode contacts with said titanium member and the surface of said second welding electrode contacts with said copper plate; and

letting current flow therebetween to welder said titanium and said copper plate.