Electrosurgical cutting device

• US 6,126,656 A
• Filed: 01/30/1996
• Issued: 10/03/2000
• Est. Priority Date: 01/30/1996
• Status: Expired due to Term

• Current Assignee: Utah Medical Products Incorporated
• Original Assignee: Utah Medical Products Incorporated
• Inventors: Billings, R. Gail
• Primary Examiner(s): Jastrzab, Jeffrey R.
• Assistant Examiner(s): RUDDY, DAVID M
• Application Number:
  US08/593,618
• Time in Patent Office: 1,708 Days
• Field of Search: 606/39-49, 606/79-82, 606/113, 606/167-171
• US Class Current: 606/45
• CPC Class Codes: A61B 18/1402 Probes for open surgery
• CPC Class Codes: A61B 2018/1253 monopolar
• CPC Class Codes: A61B 2018/1412 Blade

Abstract

An improved electrosurgical cutting device for connection to an electrosurgical generator has a non-conductive support member with a peripheral edge and a conducting member in the form of a wire electrode, distinct from the support member, disposed along at least a portion of the peripheral edge of the support member. The conducting member is electrically connected to an electrosurgical generator suitable for transmitting sufficient high frequency electrical energy to the conducting member, thereby enabling the conducting member to cut body tissue. The support member has a configuration that facilitates the manipulation of body tissue either with or without the presence of electrical energy at the conducting member.

Claims

1. An electrosurgical cutting device for communicating electrically with an electrosurgical generator for use in a monopolar circuit comprising:

a non-conductive support member having a peripheral edge; and

a conducting member, distinct from said support member, configured to function as an active outlet in a monopolar circuit for electrosurgical cutting and disposed along at least a portion of the peripheral edge of said support member, said conducting member configured to communicate electrically with only one pole of the electrosurgical generator to receive high frequency electrical energy from the electrosurgical generator, wherein said conducting member forms a wire loop electrode with said support member filling the center of the loop.

2. The electrosurgical cutting device of claim 1 wherein said wire loop electrode comprises a tungsten wire.

3. The electrosurgical cutting device of claim 1 wherein said wire loop electrode comprises a stainless steel wire.

4. The electrosurgical cutting device of claim 1 wherein said support member is composed of thermally stable material.

5. The electrosurgical cutting device as in claim 1 wherein said support member is shaped in the form of a paddle with an obverse side, a reverse side, and peripheral edge.

6. The electrosurgical cutting device of claim 1 wherein said support member is composed of ceramic material.

7. The electrosurgical cutting device as in claim 1 wherein said support member is configured to allow the manipulation of body tissue in the absence of electrical energy to said conducting member.

8. The electrosurgical cutting device of claim 1 wherein said support member is configured with a groove along at least a portion of the peripheral edge of said support member and said conducting member is seated in the groove.

9. The electrosurgical cutting device of claim 1 further comprising an adaptable connector, said adaptable connector having a proximal and distal end, said support member extending from the distal end of said adaptable connector.

10. The electrosurgical cutting device of claim 9 wherein said adaptable connector is configured to engage a handle in electrical and mechanical engagement to facilitate manual manipulation.

11. An electrosurgical cutting device for communicating electrically with an electrosurgical generator for use in a monopolar circuit comprising:

a non-conductive support member having a peripheral edge wherein said support member is configured with a groove along at least a portion of the peripheral edge of said support member;

a conducting member, distinct from said support member, configured to function as an active outlet in a monopolar circuit for electrosurgical cutting and disposed along at least a portion of the peripheral edge of said support member, wherein said conducting member is seated in the groove; and

an adaptable connector in electrical communication with said conducting member, said adaptable connector having a proximal and distal end, said support member extending from the distal end of said adaptable connector, wherein said adaptable connector is configured to be in electrical communication with only one pole of the electrosurgical generator to receive high frequency electrical energy from the electrosurgical generator.

12. The electrosurgical device of claim 11 further comprising a handle configured to receive in electrical and mechanical engagement the proximal end of said adaptable connector.

13. The electrosurgical device of claim 12 further comprising a connecting wire which passes through the interior of said handle and allows said adaptable connector to electronically communicate with the electrosurgical generator, thereby allowing the electrosurgical generator to transmit high frequency electrical energy through said adaptable connector to said conducting member to enable said conducting member to cut body tissue.

14. The electrosurgical device of claim 11 wherein said support member is composed of thermally stable material.

15. The electrosurgical device of claim 11 wherein said support member is configured to allow the manipulation of body tissue in the absence of electrical energy to said conducting member.

16. The electrosurgical cutting device of claim 11 wherein a portion of said conducting member is internal to said support member.

17. The electrosurgical cutting device of claim 11 wherein said conducting member comprises a wire electrode.

18. An electrosurgical cutting device for communicating electrically with an electrosurgical generator for use in a monopolar circuit comprising:

a handle having a proximal end and a distal end;

a non-conductive, thermally stable support member extending from the distal end of said handle, said support member having a peripheral edge, said support member being configured to allow the manipulation of body tissue; and

a conducting member, distinct from said support member, extending from said handle and configured to function as an active outlet in a monopolar circuit for electrosurgical cutting and, said conducting member disposed along at least a portion of the peripheral edge of said support member, said conducting member configured to communicate electrically with only one pole of the electrosurgical generator to receive high frequency electrical energy from the electrosurgical generator, wherein said conducting member forms a wire loop electrode with said support member filling the center of the loop.

19. The electrosurgical device of claim 18 further comprising a connecting wire for contecting said electrosurgical generator electrically with said conducting member.

20. The electrosurgical device of claim 18 wherein said support member is configured with a groove along at least a portion of the peripheral edge of said support member and said conducting member is seated in the groove.

21. An electrosurgical cutting device for communicating electrically with an electrosurgical generator for use in a monopolar circuit comprising:

a non-conductive support member having a peripheral edge; and

a conducting member, distinct from said support member, configured to function as an active outlet in a monopolar circuit for electrosurgical cutting and disposed along at least a portion of the peripheral edge of said support member, said conducting member configured to communicate electrically with only one pole of the electrosurgical generator to receive high frequency electrical energy from the electrosurgical generator, wherein a portion of said conducting member is completely enclosed within said support member.

22. The electrosurgical cutting device of claim 21 wherein said conducting member comprises a wire electrode.

23. The electrosurgical cutting device of claim 21 wherein said support member is composed of thermally stable material.

24. The electrosurgical cutting device of claim 21 wherein said support member is composed of ceramic material.

25. The electrosurgical cutting device of claim 21 wherein said support member is configured with a groove along at least a portion of the peripheral edge of said support member and said conducting member is seated in the groove.