COAXIAL DUAL FUNCTION PROBE AND METHOD OF USE

• US 20120310230A1
• Filed: 06/01/2011
• Published: 12/06/2012
• Est. Priority Date: 06/01/2011
• Status: Abandoned Application

• Current Assignee: AngioDynamics, Inc.
• Original Assignee: AngioDynamics, Inc.
• Inventors: Willis, Jeffrey
• Application Number:
  US13/150,586
• Publication Number:
  US 20120310230A1
• Time in Patent Office: Days
• US Class Current: 606/33
• CPC Class Codes: A61B 17/3417 Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating syringe needles A61M5/32; dilators A61M29/00
• CPC Class Codes: A61B 17/3421 Cannulas
• CPC Class Codes: A61B 18/1477 Needle-like probes
• CPC Class Codes: A61B 18/1487 Trocar-like, i.e. devices producing an enlarged transcutaneous opening
• CPC Class Codes: A61B 18/1815 using microwaves
• CPC Class Codes: A61B 2018/00434 Neural system
• CPC Class Codes: A61B 2018/00517 Urinary bladder or urethra
• CPC Class Codes: A61B 2018/00577 Ablation
• CPC Class Codes: A61B 2018/00583 Coblation, i.e. ablation using a cold plasma
• CPC Class Codes: A61B 2018/00613 Irreversible electroporation reversible electroporation A61N1/327
• CPC Class Codes: A61B 2018/00791 Temperature
• CPC Class Codes: A61B 2018/00916 with means for switching or controlling the main function of the instrument or device
• CPC Class Codes: A61B 2018/00982 combined with or comprising means for visual or photographic inspections inside the body, e.g. endoscopes
• CPC Class Codes: A61B 2090/0807 Indication means
• CPC Class Codes: A61B 2090/3966 Radiopaque markers visible in an X-ray image
• CPC Class Codes: A61B 90/36 Image-producing devices or illumination devices not otherwise provided for
• CPC Class Codes: A61N 1/327 for enhancing the absorption properties of tissue, e.g. by electroporation

Abstract

An energy delivery probe for use in tissue ablation and method of use is presented. The energy delivery device has at least a first energy delivery member and a second energy delivery member that have handle members positioned along a longitudinal axis, each handle member having a proximal and distal end. The distal end of the first handle member is releasably coupled to the proximal end of the second handle member and a portion of each member is defined in a coaxially surrounding relationship to each other along the longitudinal axis. The method of using the probe involves identifying a tissue to be ablated, providing the energy delivery probe, inserting at least a portion of the energy delivery probe into the identified tissue, delivering electrical energy through the energy delivery probe to the identified tissue, and ablating the identified tissue such that at least a first ablation zone is formed.

Claims

1. A method of ablating tissue, wherein the method comprises:

identifying a tissue to be ablated;

providing an energy delivery probe, wherein the energy delivery probe comprises

at least a first energy delivery member comprising a first handle member and a second energy delivery member comprising a second handle member positioned along a longitudinal axis, each handle member having a proximal end and a distal end, wherein a portion of the distal end of the first handle member is coupled to a portion of the proximal end of the second handle member;

inserting at least a portion of the energy delivery probe into the identified tissue; and

delivering electrical energy through the energy delivery probe to the identified tissue in an amount sufficient to ablate the identified tissue such that at least a first ablation zone is formed.

2. The method of claim 1, wherein the method further comprises

removing the first energy delivery member;

and

inserting at least a portion of the first energy delivery member into the identified tissue;

delivering electrical energy through at least one of the first energy delivery member and the second energy delivery member to the identified tissue in an amount sufficient to ablate the identified tissue such that at least a second ablation zone is formed.

3. The method of claim 2, wherein the method further comprises ablating the target tissue such that at least a portion of the first ablation zone overlaps at least a portion of the second ablation zone.

4. The method of claim 1, wherein the method further comprises delivering electrical energy to the identified tissue in an amount sufficient to irreversibly electroporate the identified tissue.

5. The method of claim 1, wherein the method further comprises delivering at least one of bipolar electrical energy and monopolar electrical energy.

6. The method of claim 2, wherein the method further comprises delivering at least one of bipolar electrical energy and monopolar electrical energy.

7. The method of claim 1, wherein the method further comprises switching between delivery of bipolar energy and monopolar energy.

8. The method of claim 1, wherein the method further comprises inserting fluid into the identified tissue through the energy delivery probe.

9. The method of claim 1, wherein the electrical energy is radiofrequency energy.

10. A method of ablating tissue, wherein the method comprises:

identifying a tissue to be ablated;

providing, an energy delivery probe, wherein the energy delivery probe comprises

at least a first energy delivery member comprising a handle member and a second energy delivery member comprising a handle member, wherein the members are disposed along a longitudinal axis, each handle member having a proximal end and a distal end, wherein a portion of the distal end of the first handle member is coupled to a portion of the proximal end of the second handle member, and at least a portion of the first handle member and a portion of the second handle member are disposed in a coaxially surrounding relationship to each other along the longitudinal axis;

inserting at least a portion of the energy delivery probe into the identified tissue; and

delivering electrical energy through the energy delivery probe to the identified tissue in an amount sufficient to ablate the identified tissue such that at least a first ablation zone is formed.

11. An energy delivery probe for use in tissue ablation comprising:

at least a first energy delivery member comprising a handle member and a second energy delivery member comprising a second handle member, wherein the members are disposed along a longitudinal axis, each handle, member having a proximal end and a distal end, wherein a portion of the distal end of the first handle member is coupled to a portion of the proximal end of the second handle member, and at least a portion of the first handle member and the second handle member are disposed in a coaxially surrounding relationship to each other along the longitudinal axis.

12. The energy delivery device of claim 11, wherein the energy delivery device is bipolar probe.

13. The energy delivery probe of claim 11, wherein at least one of the first energy delivery member and the second energy delivery member comprises a lumen extending from the proximal end to the distal end.

14. The energy delivery device of claim 11, wherein the energy delivery probe comprises an insulating member, and wherein the insulating member is defined in a coaxially surrounding relationship to a portion of the energy delivery probe.

15. The energy delivery device of claim 11, wherein the energy delivery device is configured to deliver radiofrequency energy to the target tissue sufficient to ablate the target tissue.

16. The energy delivery device of claim 11, wherein the energy delivery device is configured to deliver electrical pulses to a target tissue sufficient to irreversibly electroporate the target tissue.

17. The energy delivery device of claim 11, wherein the first energy delivery member and comprises a trocar, and wherein the second energy delivery member comprises a cannula.

18. The energy delivery device of claim 11, wherein the energy delivery member is selected from the group consisting of an RF electrode, a monopolar electrode, and a bipolar electrode.

19. The energy delivery device of claim 11, wherein the energy delivery probe further comprises an array, wherein the array is deployable along a radius of curvature from at least a portion of the energy delivery member.

20. The energy delivery device of claim 11, wherein the energy delivery probe comprises at least two voltage delivery regions.