Multi-mode surgical tool

• US 9,265,555 B2
• Filed: 03/15/2013
• Issued: 02/23/2016
• Est. Priority Date: 04/17/2009
• Status: Active Grant

• Current Assignee: Domain Surgical, Inc (OmniGuide Holdings, Inc.)
• Original Assignee: Domain Surgical, Inc (OmniGuide Holdings, Inc.)
• Inventors: Manwaring, Kim, McNally, David
• Primary Examiner(s): DELLA, JAYMI E
• Application Number:
  US13/840,917
• Publication Number:
  US 20130226165A1
• Time in Patent Office: 1,075 Days
• Field of Search: 606/47, 606/113, 606/46, 607/103
• US Class Current: 1/1
• CPC Class Codes: A61B 17/00234 for minimally invasive surgery A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 17/320068 using mechanical vibrations, e.g. ultrasonic A61B17/22012 takes precedence; dental tooth drilling devices operated by vibration A61C3/03; removing intra-ocular material using mechanical vibrations A61F9/00745
• CPC Class Codes: A61B 17/3211 Surgical scalpels, knives; Accessories therefor
• CPC Class Codes: A61B 18/04 by heating by applying electromagnetic radiation A61B18/18; hyperthermia using electric or magnetic fields, radiation or ultrasound A61N
• CPC Class Codes: A61B 18/08 by means of electrically-heated probes
• CPC Class Codes: A61B 18/082 Probes or electrodes therefor
• CPC Class Codes: A61B 18/085 Forceps, scissors
• CPC Class Codes: A61B 18/10 Power sources therefor
• CPC Class Codes: A61B 18/1206 Generators therefor
• 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 2017/00141 continuous, e.g. wave
• CPC Class Codes: A61B 2017/00876 magnetic
• CPC Class Codes: A61B 2017/00973 pedal-operated
• CPC Class Codes: A61B 2017/320069 for ablating tissue
• CPC Class Codes: A61B 2017/32007 with suction or vacuum means
• CPC Class Codes: A61B 2017/320082 for incising tissue
• CPC Class Codes: A61B 2018/00077 high, i.e. electrically conducting
• CPC Class Codes: A61B 2018/00095 high, i.e. heat conducting
• CPC Class Codes: A61B 2018/00107 Coatings on the energy applicator
• CPC Class Codes: A61B 2018/0013 non-sticking
• CPC Class Codes: A61B 2018/00577 : Ablation
• CPC Class Codes: A61B 2018/00589 : Coagulation
• CPC Class Codes: A61B 2018/00595 : Cauterization
• CPC Class Codes: A61B 2018/00601 : Cutting
• CPC Class Codes: A61B 2018/00619 : Welding
• CPC Class Codes: A61B 2018/00642 : with feedback, i.e. closed loop control
• CPC Class Codes: A61B 2018/00654 : with individual control of each of a plurality of energy emitting elements
• CPC Class Codes: A61B 2018/00702 : Power or energy
• CPC Class Codes: A61B 2018/00714 : Temperature
• CPC Class Codes: A61B 2018/00755 : Resistance or impedance
• CPC Class Codes: A61B 2018/00791 : Temperature
• CPC Class Codes: A61B 2018/00803 : with temperature prediction
• CPC Class Codes: A61B 2018/00958 : for switching between different working modes of the main function
• CPC Class Codes: A61B 2018/128 : generating two or more frequencies
• CPC Class Codes: A61B 2018/1407 : Loop
• CPC Class Codes: A61B 2018/1412 : Blade
• CPC Class Codes: A61M 25/00 : Catheters; Hollow probes dilators A61M29/00; peritoneal catheters A61M1/285; tracheal tubes A61M16/04; for drainage A61M27/00; for uterus, vagina or rectum A61M31/00 ; for measuring or testing A61B; materials for catheters A61L29/00
• CPC Class Codes: A61M 25/0082 : Catheter tip comprising a tool
• CPC Class Codes: Y10T 29/49124 : On flat or curved insulated base, e.g., printed circuit, etc.

Abstract

Thermal, electrosurgical and mechanical modalities may be combined in a surgical tool. Potentially damaging effects in a first modality may be minimized by using a secondary modality. In one example, thermal hemostasis may thus help electrosurgical applications avoid the adverse tissue effects associated with hemostatic monopolar electrosurgical waveforms while retaining the benefits of using monopolar incising waveforms.

Claims

1. A multi-mode surgical tool comprising:

a first structure configured to supply at least one of electrical energy or mechanical vibrations in a tissue so as to provide a first modality for treating the tissue; and

a thermal element comprised of a ferromagnetic layer coating at least a portion of an electrical conductor and in electrically conductive communication with the electrical conductor, wherein the ferromagnetic layer has a thickness of between about 1 μ

m and about 50 μ

m.

2. The multi-mode surgical tool of claim 1, wherein the first structure comprises an electrosurgical electrode.

3. The multi-mode surgical tool of claim 1, wherein the first structure comprises an oscillating body.

4. The multi-mode surgical tool of claim 1, wherein the thermal element is separate from the first structure.

5. The multi-mode surgical tool of claim 1, wherein the thermal element is disposed adjacent to the first structure.

6. The multi-mode surgical tool of claim 1, further comprising a power supply for providing a signal to the first structure and the thermal element.

7. The multi-mode surgical tool of claim 6, wherein the signal provided to the first structure and the thermal element comprises oscillating electrical energy, and wherein the first structure is configured to direct the oscillating electrical energy into the tissue and the thermal element is configured to convert the oscillating electrical energy into thermal energy.

8. The multi-mode surgical tool of claim 6, wherein the signal provided to the first structure and the thermal element comprises oscillating electrical energy, and wherein the first modality is configured to direct the oscillating electrical energy into the tissue and the thermal element is configured to convert oscillating electrical energy into thermal energy.

9. The multi-mode surgical tool of claim 6, wherein one of the first structure or the thermal element is configured to incise the tissue and wherein another of the first structure or the thermal element is configured to provide hemostasis.

10. The multi-mode surgical tool of claim 6, wherein the signal provided to the first structure and the thermal element is multiplexed.

11. The multi-mode surgical tool of claim 6, wherein the power supply is configured to provide the signal to the first structure and the thermal element substantially simultaneously.

12. The multi-mode surgical tool of claim 1, further comprising a control for selectively providing a signal to at least one of the first structure and the thermal element.

13. The multi-mode surgical tool of claim 1, further comprising a nonstick coating disposed on the thermal element.

14. The multi-mode surgical tool of claim 1, wherein the multi-mode surgical tool comprises forceps.

15. The multi-mode surgical tool of claim 1, wherein the first structure comprises a catheter, and wherein the first modality is configured to move the catheter and wherein the thermal element is disposed on the catheter.

16. A multi-mode surgical tool system, comprising:

a handpiece,

a body connectable to the handpiece, and the body drivable to oscillate, the body having a bore;

a thermal element disposed along the body, the thermal element comprised of a ferromagnetic layer covering at least a portion of an electrical conductor and in electrically conductive communication with the electrical conductor; and

a power supply disposed in communication with at least one of the handpiece and the body.

17. The multi-mode surgical tool system of claim 16, wherein the power supply is configured to provide multiplexed signals to the handpiece and wherein the handpiece is configured to control the multiplexed signals.

18. The multi-mode surgical tool system of claim 16, wherein the power supply is configured to create suction in the bore of the body.

19. The multi-mode surgical tool system of claim 16, wherein the handpiece is configured to cause ultrasonic vibration in the body.

20. The multi-mode surgical tool system of claim 16, wherein the power supply is configured to provide irrigation to the bore.

28. The multi-mode surgical tool system of claim 16, wherein the ferromagnetic layer has a thickness of between about 1 μ

m and about 50 μ

m.

29. The multi-mode surgical tool system of claim 16, wherein the ferromagnetic layer has a thickness of between about 0.5 μ

m and about 500 μ

m.

21. A surgical tool comprising:

a catheter having a body with a bore extending therethrough; and

an electrical conductor disposed along the body, at least a portion of the electrical conductor having a ferromagnetic coating disposed thereon, the ferromagnetic coating being in electrically conductive communication with the electrical conductor, and the ferromagnetic coating having a thickness of between about 1 μ

m and about 50 μ

m.

22. The surgical tool of claim 21, wherein the body has a distal end, and wherein the electrical conductor wraps around the distal end.

23. The surgical tool of claim 21, wherein the electrical conductor is continuous and has a first portion extending toward a distal end of the catheter, a second, middle portion which wraps around the distal end of the catheter and a third portion which extends away from the distal end of the catheter and back toward a proximal end of the catheter.

24. The surgical tool of claim 21, further comprising means for driving the body ultrasonically.

25. A surgical tool comprising:

a catheter having a body with a bore extending therethrough; and

an electrical conductor disposed along the body, at least a portion of the electrical conductor having a ferromagnetic coating disposed thereon, wherein the ferromagnetic coating is in electrically conductive communication with the electrical conductor, and wherein the body has a distal end, and wherein the electrical conductor wraps around the distal end.

26. The surgical tool of claim 25, wherein the ferromagnetic coating has a thickness of between about 1 μ

m and about 50 μ

m.

27. The surgical tool of claim 25, wherein the ferromagnetic coating has a thickness of between about 0.5 μ

m and about 500 μ

m.