Soft tissue RF transection and resection device

• US 8,668,688 B2
• Filed: 07/17/2012
• Issued: 03/11/2014
• Est. Priority Date: 05/05/2006
• Status: Expired due to Fees

• Current Assignee: Covidien AG (Medtronic Plc)
• Original Assignee: Covidien AG (Medtronic Plc)
• Inventors: Rusin, Chris
• Primary Examiner(s): Dvorak, Linda
• Assistant Examiner(s): DELLA, JAYMI E
• Application Number:
  US13/551,005
• Publication Number:
  US 20130030429A1
• Time in Patent Office: 602 Days
• Field of Search: 606/32, 606/39, 606/41, 606/45, 606/48
• US Class Current: 606/48
• CPC Class Codes: A61B 18/1402 Probes for open surgery
• CPC Class Codes: A61B 18/1477 Needle-like probes
• CPC Class Codes: A61B 18/148 having a short, rigid shaft for accessing the inner body transcutaneously, e.g. for neurosurgery or arthroscopy
• CPC Class Codes: A61B 2018/00023 closed, i.e. without wound contact by the fluid
• CPC Class Codes: A61B 2018/00601 Cutting
• CPC Class Codes: A61B 2018/143 multiple needles

Abstract

A method for performing an electrosurgical procedure is presented including providing an electrosurgical system having an electrosurgical generator, a first electrosurgical device including a first electrically conductive element, a second electrosurgical device including a second electrically conductive element configured to be coupled to a first location of a target tissue and a third electrosurgical device including a third electrically conductive element configured to be coupled to a second location of the target tissue. The method also includes the steps of positioning the second and third electrically conductive elements relative to one another, orienting and defining a direction and a length of a single resection line between the second and third electrically conductive elements, and moving the first electrically conductive element along the single resection line to desiccate or divide the target tissue.

Claims

1. A method for performing an electrosurgical procedure on a target tissue, the method comprising:

providing an electrosurgical system comprising;

an electrosurgical generator including an active terminal and a return terminal;

a first electrosurgical device including a first electrically conductive element electrically connectable to the active terminal of the electrosurgical generator;

a second electrosurgical device including a second electrically conductive element electrically connectable to the active terminal of the electrosurgical generator; and

a third electrosurgical device including a third electrically conductive element electrically connectable to the return terminal of the electrosurgical generator;

simultaneously transmitting energy to the first, second, and third electrically conductive elements;

inserting the second electrically conductive element into a first location of the target tissue;

inserting the third electrically conductive element into a second location of the target tissue;

orienting and defining a direction and a length of a single resection line between the second and third electrically conductive elements which are independently positionable with respect to each other on the target tissue, such that axes of the second and third electrically conductive elements are non-parallel with respect to each other; and

moving the first electrically conductive element along the single resection line to desiccate or divide the target tissue when the second and third electrically conductive elements are inserted into the target tissue, an axis of the first electrically conductive element configured to move in a non-parallel manner with respect to the axes of the second and third electrically conductive elements.

2. The method according to claim 1, wherein moving along the single resection line causes a degree of energy transmission to change.

3. The method according to claim 1, further comprising causing radiofrequency (RF) energy to flow between the second and third electrosurgical devices by removing the first electrosurgical device from the target tissue.

4. The method according to claim 1, further comprising connecting the first and second electrosurgical devices in parallel.

5. The method according to claim 1, further comprising circulating a fluid through the third electrosurgical device.

6. The method according to claim 1, wherein the first electrically conductive element is a blade, the second electrically conductive element includes at least one needle electrode and the third electrically conductive element includes at least one hollow needle electrode assembly.

7. The method according to claim 6, further comprising circulating a fluid through the at least one hollow needle electrode assembly of the third electrosurgical device.

8. The method according to claim 1, wherein the first electrically conductive element is a blade electrode configured to be laterally movable along the single resection line to effect cutting therealong.

9. The method according to claim 8, wherein the first electrically conductive element is associated with an electrosurgical pencil including a handle for supporting the blade electrode.

10. A method for performing an electrosurgical procedure on a target tissue, the method comprising:

providing an electrosurgical system comprising;

a generator including an active terminal and a return terminal;

a first electrosurgical device connected to the active terminal;

a second electrosurgical device connected to the return terminal; and

a third electrosurgical device;

simultaneously transmitting electrical energy to the first, second, and third electrosurgical devices;

orienting and defining a direction and a length of a single resection line between the second and third electrosurgical devices which are independently positionable with respect to each other on the target tissue, such that axes of the second and third electrically conductive elements are non-parallel with respect to each other; and

moving the first electrosurgical device along the single resection line to desiccate or divide the target tissue when the second and third electrically conductive elements are inserted into the target tissue, the first electrically conductive element configured to move in a non-parallel manner with respect to the axes of the second and third electrically conductive elements.

11. The method of claim 10, further comprising providing the second and third electrosurgical devices with sharpened distal tips configured for percutaneous tissue penetration.

12. The method of claim 10, further comprising operatively coupling a potentiometer to at least one of the first, second, and third electrosurgical devices.

13. The method of claim 10, further comprising operatively coupling an activation switch to the first electrosurgical device.

14. The method of claim 10, wherein moving along the single resection line causes a degree of energy transmission to change.

15. The method according to claim 10, further comprising connecting the first and second electrosurgical devices in parallel.

16. The method according to claim 10, further comprising circulating a fluid through the third electrosurgical device.

17. The method according to claim 10, wherein the first electrosurgical device includes a blade, the second electrosurgical device includes at least one needle electrode, and the third electrosurgical device includes at least one hollow needle electrode assembly.