Resistively heated electrosurgical device

Patent metadata

Field	Value
Publication number	US-9918774-B2
Application number	US-201514708836-A
Country	US
Kind code	B2
Filing date	May 11, 2015
Priority date	May 12, 2014
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

A medical device is provided that includes a hand piece, a heating power supply, and a therapy power supply. The hand piece includes a first electrode including a heater. The heating power supply selectively provides heating power to the heater. The therapy power supply selectively provides therapeutic power to the first electrode. The medical device is changeable between operating a first electrosurgical configuration and a second electrosurgical configuration. In the first electrosurgical configuration, the heating power supply provides the heating power to the heater to heat the first electrode and the therapy power supply provides the therapeutic power to the first electrode.

First claim

We claim:

1. A medical device, comprising:
i. a hand piece comprising a first electrode including a heater, a second electrode, and a third electrode;
ii. a heating power supply selectively providing heating power to the heater; and
iii. a therapy power supply selectively providing therapeutic power to the first electrode,
wherein the medical device is changeable between operating in a first electrosurgical configuration and in a second electrosurgical configuration,
wherein in the first electrosurgical configuration, the heating power supply provides the heating power to the heater to heat the first electrode and the therapy power supply provides the therapeutic power to the first electrode,
wherein in the second electrosurgical configuration, the second electrode is in communication with the therapy power supply and the second electrode is also in communication with the first electrode, the third electrode, or both, and
wherein in the second electrosurgical configuration, the medical device operates in a bipolar mode.

2. The medical device of claim 1 , wherein in the first electrosurgical configuration, the first electrode is in communication with a remote electrode,
wherein in the first electrosurgical configuration, the medical device operates in a monopolar mode.

3. The medical device of claim 2 , wherein the first electrode is in communication with a first extension,
wherein in the first electrosurgical configuration, the first extension member is a heated monopolar blade, and
wherein the first extension member is moveable relative to any other extensions.

4. The medical device of claim 1 ,
wherein in the first electrosurgical configuration, the second electrode is in communication with the therapy power supply, and
wherein in the first electrosurgical configuration, the medical device operates in a bipolar mode.

5. The medical device of claim 4 , wherein the first electrode is in communication with a first extension and the second electrode is in communication with a second extension,
wherein in the first electrosurgical configuration, the first and second extensions comprise opposing jaws of a forceps device.

6. The medical device of claim 5 , wherein the heater is electrically connected to the heating power supply by a first conductive path comprising a first connection and a second connection,
wherein the first electrode is electrically connected to the therapy power supply by a second conductive path comprising a third connection, and
wherein the first connection and third connection are a single, electrically connected connection providing the heating power to the heater and the therapeutic power to the first electrode.

7. The medical device of claim 1 , wherein the first electrode is operable in both the first electrosurgical configuration and the second electrosurgical configuration.

8. The medical device of claim 7 ,
wherein in the second electrosurgical configuration, the first electrode is in communication with the second electrode and the therapy power supply, and
wherein in the second electrosurgical configuration, the heating power supply selectively provides heating power to the heater.

9. The medical device of claim 8 ,
wherein the third electrode is in communication with at least one of the first and second electrodes in the second electrosurgical configuration.

10. The medical device of claim 4 , wherein the first electrode is in communication with a first extension, the second electrode is in communication with a second extension, and the third electrode is in communication with a third extension,
wherein in the first electrosurgical configuration, the first extension member is a heated blade, and
wherein in the second electrosurgical configuration, the second and third extensions comprise opposing jaws of a forceps device.

11. The medical device of claim 10 , wherein the medical device selectively operates in the first and second electrosurgical configurations.

12. The medical device of claim 10 , wherein the heater is electrically connected to the heating power supply by a first conductive path comprising a first connection and a second connection,
wherein the first electrode is electrically connected to the therapy power supply by a second conductive path comprising a third connector, and
wherein the first connection and third connection are a common connection.

13. The medical device of claim 1 , wherein the first electrode is in communication with a first extension, the second electrode is in communication with a second extension, and the third electrode is in communication with a third extension,
wherein in the first electrosurgical configuration, the first extension member is a heated blade, and
wherein in the second electrosurgical configuration, the first extension comprises a centrally-located heated extension that is sandwiched between the second and third extensions.

14. The medical device of claim 13 , wherein the medical device is a J-hook or a spatula.

15. A medical device, comprising:
i. a hand piece comprising:
a. a first electrode including a heater,
b. a second electrode, and
c. a third electrode;

ii. a heating power supply selectively supplying heating power to the heater; and
iii. a therapy power supply selectively providing therapeutic power to the first, second, and/or third electrodes,
wherein the medical device is selectively changeable between a first electrosurgical configuration and a second electrosurgical configuration, and
wherein in the first electrosurgical configuration, the heating power supply provides the heating power to the heater to heat the first electrode and the therapy power supply provides the therapeutic power to the first electrode.

16. The medical device of claim 15 , wherein the first electrode is in communication with a first extension, the second electrode is in communication with a second extension, and the third electrode is in communication with a third extension,
wherein in the first electrosurgical configuration, the first extension is a heated blade,
wherein in the second electrosurgical configuration, the therapy power supply provides the therapeutic power to the second and third electrodes so that the medical device operates in a bipolar mode, and
wherein the second and third extensions comprise opposing jaws of a forceps device.

17. The medical device of claim 15 , wherein the first electrode is in communication with a first extension, the second electrode is in communication with a second extension, and the third electrode is in communication with a third extension,
wherein in the first electrosurgical configuration, the first extension is a heated blade,
wherein in the second electrosurgical configuration, the therapy power supply provides the therapeutic power to the second and third electrodes so that the medical device operates in a bipolar mode, and
wherein in the second electrosurgical mode, the second and third extensions comprise opposing segments of a medical J-hook.

18. The medical device of claim 15 , wherein the first electrode is in communication with a first extension, the second electrode is in communication with a second extension, and the third electrode is in communication with a third extension,
wherein in the first electrosurgical configuration, the first extension is a heated blade,
wherein in the second electrosurgical mode, the therapy power supply provides the therapeutic power to the second and third electrodes so that the medical device operates in a bipolar mode, and
wherein in th

Assignees

• Gyrus Acmi Inc

Inventors

• Batchelor Kester J
• Curtis Richard J
• Mensch John
• Lim Jyue Boon
• Moe Riyad

Classifications

• A61B18/14

  Probes or electrodes therefor · CPC title

• A61B18/08 Primary

  by means of electrically-heated probes · CPC title

• A61B2018/00958

  for switching between different working modes of the main function · CPC title

• A61B2018/1422

  Hook · CPC title

• A61B2018/1452

  including means for cutting (A61B2018/146 takes precedence) · CPC title