Multi-mode surgical tool

• US 10,441,342 B2
• Filed: 02/22/2016
• Issued: 10/15/2019
• 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:
  US15/050,453
• Publication Number:
  US 20160249971A1
• Time in Patent Office: 1,331 Days
• 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 handpiece;

a first modality for treating tissue, the first modality connected to the handpiece and including a first bipolar electrode and a second bipolar electrode;

a thermal element including a ferromagnetic layer covering at least a portion of an electrical conductor; and

a control on the handpiece and configured to selectively activate the first modality in a first operational mode, the thermal element in a second operational mode, and the first modality and the thermal element in third operational mode.

2. The multi-mode surgical tool of claim 1, wherein the first modality comprises a first forceps jaw including the first bipolar electrode, and a second forceps jaw including the second bipolar electrode.

3. The multi-mode surgical tool of claim 2, wherein the thermal element is attached to the first forceps jaw.

4. The multi-mode surgical tool of claim 3, comprising a thermal sensor attached to the second forceps jaw.

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

6. The multi-mode surgical tool of claim 1, wherein the thermal element is disposed adjacent to one of the first bipolar electrode or the second bipolar electrode of the first modality.

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

8. The multi-mode surgical tool of claim 7, wherein the signals provided to the first modality and the thermal element include oscillating electrical energy, and wherein the first modality is configured to direct the oscillating electrical energy into tissue and the thermal element is configured to convert the oscillating electrical energy into thermal energy.

9. The multi-mode surgical tool of claim 7, wherein the power supply for providing the signals is configured to provide a signal that is multiplexed to the first modality and the thermal element.

10. The multi-mode surgical tool of claim 7, wherein the power supply is configured to provide the signals to the first modality and the thermal element substantially simultaneously in the third operational mode.

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

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

13. The multi-mode surgical tool of claim 1, further comprising a catheter, wherein the first modality and the thermal element are disposed on the catheter.

14. The multi-mode surgical tool of claim 1, wherein the control includes a first switch configured to selectively activate the first modality, and a second switch configured to selectively activate the thermal element.

15. The multi-mode surgical tool of claim 1, further comprising:

a first forceps jaw connected to the handpiece, the first forceps jaw including the first bipolar electrode; and

a second forceps jaw connected to the handpiece and spaced apart from the first forceps jaw, the second forceps jaw including a second bipolar electrode,

wherein the control includes a first switch configured to selectively activate the first modality, and a second switch configured to selectively activate the thermal element.

16. The surgical tool of claim 15, wherein one of the first forceps jaw or the second forceps jaw includes the thermal element, and the other of the first forceps jaw and the second forceps jaw includes a thermal sensor.

17. The surgical tool of claim 16, comprising a power supply electrically coupled to the thermal element, the power supply, when in use, adjusts an electrical signal supplied to the thermal element based on a temperature sensed by the thermal sensor.

18. The surgical tool of claim 15, wherein the ferromagnetic layer includes a layer of nickel-iron alloy on the electrical conductor.