Surgical adapter assemblies and wireless detection of surgical loading units

Patent metadata

Field	Value
Publication number	US-11002872-B2
Application number	US-201916437123-A
Country	US
Kind code	B2
Filing date	Jun 11, 2019
Priority date	Dec 14, 2015
Publication date	May 11, 2021
Grant date	May 11, 2021

Abstract

An adapter assembly includes an elongated body configured to couple to a handle assembly and a loading unit assembly. The adapter assembly includes an oscillator configured to output a voltage signal. A sensor determines a connection status of the loading unit assembly coupled to the adapter assembly based on a change in the voltage signal. The voltage signal includes a rectified voltage output and an induced voltage output and changes in response to the approximation of a winding disposed within a loading unit assembly to the oscillator.

First claim

What is claimed is:

1. An adapter assembly, comprising:
an elongated body having a proximal portion and a distal portion, wherein the proximal portion is configured to couple to a robotic arm and the distal portion is configured to couple to a loading unit assembly;
an oscillator disposed within the elongated body and configured to output a voltage signal; and
a sensor disposed within the elongated body and configured to determine a connection status of a loading unit assembly coupled to the elongated body based on a change in the voltage signal.

2. The adapter assembly according to claim 1 , wherein the voltage signal includes a rectified voltage output and an induced voltage output.

3. The adapter assembly according to claim 1 , wherein the oscillator is a Colpitts Oscillator.

4. The adapter assembly according to claim 1 , wherein the voltage signal changes in response to approximation of a winding disposed within a loading unit assembly to the oscillator.

5. The adapter assembly according to claim 1 , wherein the voltage signal changes in response to a wireless interaction with a winding disposed within a loading unit.

6. The adapter assembly according to claim 1 , wherein the sensor is further configured to determine a parameter of a loading unit assembly based on the change in the voltage signal.

7. The adapter assembly according to claim 6 , wherein the parameter is selected from the group consisting of a serial number of a loading unit assembly, a type of a loading unit assembly, a size of a loading unit assembly, a fastener size, a fastener type, prior use information, and maximum number of uses of a loading unit assembly.

8. A surgical system comprising:
a robotic arm including a processor and a memory, wherein the processor is configured to control a motor;
a surgical loading unit including:
a memory configured to store a parameter of the surgical loading unit; and
a winding; and

an adapter assembly configured to couple to the robotic arm and the surgical loading unit, the adapter assembly including:
an oscillator configured to wirelessly couple to the winding and to output a voltage signal; and
a sensor configured to determine a connection status of the surgical loading unit based on a change in the voltage signal due to wireless coupling of the winding and the oscillator.

9. The surgical system according to claim 8 , wherein the parameter of the surgical loading unit is an identifier of the surgical loading unit.

10. The surgical system according to claim 8 , wherein the oscillator is a Colpitts Oscillator.

11. The surgical system according to claim 8 , wherein the change in the voltage signal is a change in frequency.

12. The surgical system according to claim 8 , wherein the sensor is further configured to determine a parameter of the surgical loading unit based on the change in the voltage signal.

13. The surgical system according to claim 12 , wherein the parameter is selected from the group consisting of a serial number of the surgical loading unit, a type of the surgical loading unit, a size of the surgical loading unit, a faster size, a fastener type, prior use information, and maximum number of uses of the surgical loading unit.

14. The surgical system according to claim 8 , wherein the voltage signal includes a rectified voltage output and an induced voltage output.

15. A method for wireless detection of a surgical loading unit being coupled to an adapter assembly, the method comprising:
generating a signal at an oscillator circuit disposed within an adapter assembly;
measuring a parameter of the oscillator circuit;
inserting a surgical loading unit including a winding into the adapter assembly, thereby altering the parameter to generate an altered parameter;
measuring the altered parameter;
determining a difference between the parameter and the altered parameter; and
determining presence of the surgical loading unit based on the difference.

16. The method according to claim 15 , wherein the parameter is a voltage or a frequency of the signal.

17. The method according to claim 15 , wherein altering the parameter is based on a wireless connection between the winding of the surgical loading unit and the oscillator circuit of the adapter assembly.

18. The method according to claim 15 , further comprising determining at least one operational parameter of the surgical loading unit based on the difference.

19. The method according to claim 18 , wherein determining the at least one operational parameter of the surgical loading unit includes identifying the surgical loading unit.

Assignees

• Covidien Lp

Inventors

• Calderoni Anthony
• Pantazis John
• Dussan Luis

Classifications

• A61B17/07207 Primary

  the staples being applied sequentially · CPC title

• A61B2090/0808

  for indicating correct assembly of components, e.g. of the surgical apparatus · CPC title

• A61B2017/00039

  Electric or electromagnetic phenomena other than conductivity, e.g. capacity, inductivity, Hall effect · CPC title

• A61B17/1222

  Packages or dispensers therefor (clip magazines incorporated in a clip-applying instrument A61B17/128; for surgical articles A61B50/30) · CPC title

• A61B2017/00221

  with wireless transmission of data, e.g. by infrared radiation or radiowaves · CPC title