Method of mass manufacturing coated electrosurgical electrodes

• US 6,070,444 A
• Filed: 03/31/1999
• Issued: 06/06/2000
• Est. Priority Date: 03/31/1999
• Status: Expired due to Term

• Current Assignee: Covidien AG (Medtronic Plc)
• Original Assignee: Sherwood Services AG
• Inventors: Arts, Gene H., Lontine, Michael D.
• Primary Examiner(s): BUTLER, RODNEY ALLEN
• Application Number:
  US09/282,812
• Time in Patent Office: 433 Days
• Field of Search: 72/42, 72/46, 72/47, 606/41, 606/42, 606/43, 606/44, 606/45, 606/46, 606/47, 606/48, 606/49, 606/50, 606/51, 606/52
• US Class Current: 72/46
• CPC Class Codes: A61B 18/1402 Probes for open surgery
• CPC Class Codes: A61B 2018/00136 with polymer

Abstract

A method of mass manufacturing a plurality of electrodes coated with a non-stick layer is disclosed for reducing eschar buildup and the like on the working tip of an electrode during electrosurgical procedures and facilitating ease of cleaning the tip. The plurality of electrodes are mass manufactured for connection to an appropriate electrical power source. One preferred method of mass manufacturing a plurality of electrodes includes the steps of: simultaneously coating at least a portion of a stock material with a non-stick layer; and forming the plurality of electrode blanks having the non-stick layer. The plurality of electrode blanks may be subjected to further finishing. Preferably, the plurality of electrode blanks are formed having the non-stick layer as the material is advanced through a stamping operation. Also, the material may be configured and dimensioned in the form of a tree to provide a plurality of electrode blanks with a non-stick layer.

Claims

1. A method of mass manufacturing a plurality of electrodes, each electrode mass manufactured for connection to an appropriate electrical power source for a surgical procedure, the method comprising the steps of:

providing electrically conductive stock material, whereby the stock material is configured and dimensioned to provide a plurality of electrode blanks;

coating at least a portion of the stock material with a non-stick layer; and

forming the plurality of coated electrode blanks wherein each of the plurality of electrode blanks has at least one uncoated side face exposing stock material.

2. The method according to claim 1, further comprising the step of finishing the plurality of electrode blanks.

3. The method according to claim 1, whereby the step of forming includes forming the stock material into a plurality of electrode blades.

4. The method according to claim 1, whereby the step of providing electrically conductive stock material comprises stock material configured and dimensioned as a tree wherein each of the plurality of electrode blanks are connected to the tree by at least one face.

5. The method of manufacturing according to claim 1, wherein the step of providing electrically conductive stock material comprises stock material configured and dimensioned as a sheet that is wound into a coil.

6. The method according to claim 1, wherein the step of providing electrically conductive stock material comprises stock material configured and dimensioned as a sheet in the form of a blank.

7. The method according to claim 1, wherein the step of coating comprises the step of coating the stock material with at least one non-stick layer selected from the group consisting of synthetic fluorine based resins, fluorinated carbons and silicone elastomers.

8. The method according to claim 1, wherein the step of forming comprises a stamping operation.

9. The method according to claim 2, wherein the step of finishing includes coating any of the uncoated side faces exposing stock material with a layer of non-stick material.

10. The method according to claim 7, wherein the non-stick layer comprises polytetrafluoroethylene.

11. A method of mass manufacturing a plurality of electrodes, each electrode mass manufactured for connection to an appropriate electric power source for a surgical procedure, the method comprising the steps of:

providing electrically conductive stock material, whereby the stock material is configured and dimensioned to provide a plurality of electrode blanks;

coating at least a portion of the stock material with a non-stick layer;

feeding the stock material having the non-stick layer to a stamping operation, wherein the stock material is configured and dimensioned for receipt by the stamping operation;

forming the plurality of electrode blanks having the non-stick layer;

wherein the plurality of electrode blanks are formed having the non-stick layer as the material is advanced through the stamping operation, wherein each of the plurality of electrode blanks has at least one uncoated side face exposing stock material; and

finishing the plurality of electrode blanks.

12. The method according to claim 11, wherein the step of providing electrically conductive stock material further comprises stock material configured and dimensioned as a coil of sheet metal, the step of feeding further comprises configuring the coil for the stamping operation, and the step of forming further comprises advancing the coil through the stamping operation.

13. The method according to claim 11, wherein the step of providing electrically conductive stock material further comprises stock material configured and dimensioned as an elongated sheet metal, the step of feeding further comprises adapting the elongated sheet for the stamping operation, and the step of forming further comprises advancing the elongated sheet through the stamping operation.

14. The method according to claim 11, wherein the step of providing electrically conductive stock material further comprises the material configured and dimensioned as a sheet metal blank and the step of feeding further comprises adapting the sheet metal blank for use with the stamping operation.

15. A method of mass manufacturing a plurality of electrodes, each electrode mass manufactured for connection to an appropriate electrical power source for a surgical procedure, the method comprising the steps of:

providing electrically conductive stock material, whereby the stock material is configured and dimensioned as a tree to provide a plurality of electrode blanks, whereby each of the plurality of electrode blanks are connected to the tree by at least one face;

coating at least a portion of the tree with a non-stick layer; and

forming the plurality of electrode blanks having the non-stick layer.

16. The method according to claim 15, further comprising the step of finishing the tree.

17. The method according to claim 16, wherein the step of finishing the tree comprises removing at least a portion of the coating.