STABILIZED ABLATION SYSTEMS AND METHODS

• US 20120123411A1
• Filed: 11/14/2011
• Published: 05/17/2012
• Est. Priority Date: 11/12/2010
• Status: Abandoned Application

• Current Assignee: Atricure, Inc.
• Original Assignee: Estech Incorporated
• Inventors: Ibrahim, Tamer, Morejohn, Dwight P., Banchieri, Michael J., Stephanian, Ara, Pavlidis, John D., Swanson, David K.
• Application Number:
  US13/295,852
• Publication Number:
  US 20120123411A1
• Time in Patent Office: Days
• US Class Current: 606/41
• CPC Class Codes: A61B 18/02 by cooling, e.g. cryogenic techniques devices for cooling specific reflex points of the body within cell-life limits A61H39/06
• CPC Class Codes: A61B 18/1492 having a flexible, catheter-like structure, e.g. for heart ablation A61B18/1477 takes precedence
• CPC Class Codes: A61B 18/1815 using microwaves
• CPC Class Codes: A61B 18/20 using laser
• CPC Class Codes: A61B 2018/00011 with fluids
• CPC Class Codes: A61B 2018/00357 Endocardium
• CPC Class Codes: A61B 2018/00375 Ostium, e.g. ostium of pulmonary vein or artery
• CPC Class Codes: A61B 2018/00577 Ablation
• CPC Class Codes: A61B 2018/00613 Irreversible electroporation
• CPC Class Codes: A61B 2018/00791 Temperature
• CPC Class Codes: A61B 2018/00821 measured by a thermocouple
• CPC Class Codes: A61B 2018/1467 using more than two electrodes on a single probe
• CPC Class Codes: A61B 2090/064 for measuring force, pressure or mechanical tension
• CPC Class Codes: A61B 2218/002 Irrigation
• CPC Class Codes: A61N 7/022 intracavitary

Abstract

Surgical systems and methods for administering an ablation treatment and other therapeutic or diagnostic protocols to a patient tissue involve a flexible stabilizer mechanism having an inner recess and an ablation mechanism coupled with the stabilizer mechanism.

Claims

1. A surgical system for administering an ablation treatment to a patient tissue, comprising:

a flexible stabilizer mechanism having an inner recess; and

an ablation mechanism coupled with the stabilizer mechanism, the ablation mechanism comprising an active electrode assembly disposed along a first side of the inner recess of the stabilizer mechanism, and a return electrode assembly disposed along a second side of the inner recess of the stabilizer mechanism.

2. The surgical system according to claim 1, wherein the flexible stabilizer mechanism is configured to deliver suction to a portion of the patient tissue, so as to draw the portion of the patient tissue into the inner recess of the stabilizer mechanism, and between the active electrode assembly and the return electrode assembly.

3. The surgical system according to claim 1, further comprising a temperature sensor in thermal association with the active electrode.

4. The surgical system according to claim 1, further comprising a temperature sensor in thermal association with the return electrode.

5. The surgical system according to claim 1, further comprising a temperature sensor disposed along a central portion of the stabilizer mechanism inner recess.

6. The surgical system according to claim 1, further comprising a cinching mechanism configured to constrict the ablation mechanism about the patient tissue.

7. The surgical system according to claim 1, wherein the active electrode assembly comprises at least 6 active electrodes.

8. The surgical system according to claim 1, wherein the return electrode assembly comprises more than one return electrode.

9. The surgical system according to claim 1, further comprising a second active electrode assembly disposed along the first side of the inner recess of the stabilizer mechanism.

10. The surgical system according to claim 1, further comprising a second return electrode assembly disposed along the second side of the inner recess of the stabilizer mechanism.

11. The surgical system according to claim 1, wherein the stabilizer mechanism comprises a cooling lumen.

12. The surgical system according to claim 1, wherein the stabilizer mechanism comprises an irrigation lumen.

13. The surgical system according to claim 1, wherein the stabilizer mechanism comprises a pocket that channels a vacuum delivered by the stabilizer mechanism.

14. The surgical system according to claim 1, further comprising an ablation device connector for coupling with an electrosurgical unit, the ablation device connector having couplings for delivering a pacing protocol to the patient via the ablation mechanism.

15. The surgical system according to claim 1, further comprising a steerable member in operative association with the stabilizer mechanism.

16. The surgical system according to claim 1, further comprising a first rail coupled with a first external side of the stabilizer mechanism, and a second rail coupled with a second external side of the stabilizer mechanism.

17. The surgical system according to claim 16, further comprising a clamping instrument that tracks along at least one of the first and second rails.

18. The surgical system according to claim 1, wherein the active electrode assembly comprises an active electrode having an active surface and the return electrode assembly comprises a return electrode having a return surface, such that the active surface and return are, angularly offset when the stabilizer mechanism is in a relaxed configuration and substantially parallel when the stabilizer mechanism is in a clamped configuration.

19-22. -22. (canceled)

23. A surgical system for administering an ablation treatment to a patient tissue, comprising:

a flexible stabilizer mechanism having an inner recess;

a ribcage mechanism, disposed at least partially within the inner recess of the stabilizer mechanism, the ribcage mechanism having an inner recess; and

an ablation mechanism coupled with the ribcage mechanism, the ablation mechanism comprising an active electrode assembly disposed along a first side of the inner recess of the ribcage mechanism, and a return electrode assembly disposed along a second side of the inner recess of the stabilizer.

24. The surgical system according to claim 23, wherein the flexible stabilizer mechanism is configured to deliver suction to a portion of the patient tissue, so as to draw the portion of the patient tissue into the inner recess of the ribcage mechanism, and between the active electrode assembly and the return electrode assembly.

25. (canceled)

26. A surgical system for administering an ablation treatment to a patient tissue, comprising:

a flexible stabilizer mechanism having a pod assembly housing a ribcage mechanism that defines an inner recess; and

an ablation mechanism coupled with the ribcage mechanism, the ablation mechanism comprising an electrode assembly disposed along a first side of the inner recess of the ribcage mechanism, and a return electrode assembly disposed along a second side of the inner recess of the ribcage mechanism.

27. The surgical system according to claim 26, wherein the flexible stabilizer mechanism is configured to deliver suction to a portion of the patient tissue, so as to draw the portion of the patient tissue into the inner recess of the ribcage mechanism, and between the active electrode assembly and the return electrode assembly.

28-43. -43. (canceled)