Inductive powered surgical device with wireless control

• US 10,278,762 B2
• Filed: 08/11/2014
• Issued: 05/07/2019
• Est. Priority Date: 06/30/2010
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Moua, Tony, Craig, Jason L.
• Primary Examiner(s): Peffley, Michael F
• Assistant Examiner(s): Zink, Amanda L
• Application Number:
  US14/456,782
• Publication Number:
  US 20140350545A1
• Time in Patent Office: 1,730 Days
• CPC Class Codes: A61B 18/1206 Generators therefor
• CPC Class Codes: A61B 18/14 Probes or electrodes therefor
• CPC Class Codes: A61B 18/1402 Probes for open surgery
• CPC Class Codes: A61B 18/1445 at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
• CPC Class Codes: A61B 2018/00928 by sending a signal to an external energy source
• CPC Class Codes: A61B 2018/00946 slidable
• CPC Class Codes: A61B 2018/1286 having a specific transformer

Abstract

A system and method for wirelessly powering an electrosurgical device using a generator to generate a radio frequency (RF) energy field. A switch on the electrosurgical device sends a wireless signal to the generator, where the generator allows a current to pass through an inductive coil to generate the RF energy field. The RF energy field induces a current to flow across an inductive coil within the electrosurgical device. The current flow is then processed through a RF conditioning circuit and outputted to the end effector assembly of the device.

Claims

1. A system for wirelessly operating a hand held surgical device, comprising:

a generator configured with a power source and a first inductor to generate a RF energy field;

a hand held surgical device configured with a second inductor, a capacitor coupled to the second inductor, a power board, a wireless communication board including a battery, a control interface, and an end effector assembly; and

at least one switch operatively associated with the control interface and configured to send a first message to the wireless communication board when the at least one switch is selected, the wireless communication board, in response to receiving the first message from the control interface, configured to send a second message to the generator instructing the generator to generate the RF energy field,

wherein upon reception of the RF energy field at the second inductor, the RF energy field induces a current across the second inductor, the induced current charges energy in the capacitor which provides the charged energy to the power board, and the power board sends a RF signal to the end effector assembly, and

wherein the battery is used to send the second message to the generator before the generator generates the RF energy to induce the current across the second inductor.

2. The system of claim 1, wherein the wireless communication board further includes a battery to provide power to the wireless communication board prior to the generator generating the RF energy field.

3. The system of claim 1, further comprising:

a rechargeable battery, wherein the second inductor charges the rechargeable battery when the generator generates the RF energy field and the rechargeable battery provides the RF signal to the power board.

4. The system of claim 1, wherein the control interface is configured to allow a user to select an operating mode, and the operating mode is cut, ablate, coagulate or seal.

5. The system of claim 4, wherein the generator generates the RF energy field in accordance with the selected operation mode.

6. The system of claim 4, wherein the power board conditions the RF signal into the selected mode.

7. The system of claim 1, wherein, when the at least one switch is selected, the at least one selected switch allows the charged energy flow to the end effector assembly to perform a surgical operation.