Systems and methods for controlling a segmented circuit

Patent metadata

Field	Value
Publication number	US-12023022-B2
Application number	US-202117208613-A
Country	US
Kind code	B2
Filing date	Mar 22, 2021
Priority date	Mar 26, 2014
Publication date	Jul 2, 2024
Grant date	Jul 2, 2024

Abstract

The present disclosure provides a method for controlling a surgical instrument. The method includes connecting a power assembly to a control circuit, wherein the power assembly is configured to provide a source voltage, energizing, by the power assembly, a voltage boost convertor circuit configured to provide a set voltage greater than the source voltage, and energizing, by the voltage boost convertor, one or more voltage convertors configured to provide one or more operating voltages to one or more circuit components.

First claim

What is claimed is:

1. A powered surgical instrument, comprising:
an end effector configured to perform a plurality of end effector functions, wherein said end effector is configured to receive a staple cartridge comprising a plurality of staples removably stored therein;
a knife;
a DC motor configured to advance said knife within said end effector;
a primary processor;
a motor controller in signal communication with said primary processor, wherein said DC motor is electrically coupled to said primary processor through a plurality of H-bridge drivers and said motor controller, and wherein said primary processor provides data to said motor controller;
a control circuit, comprising:
a power assembly configured to provide a source voltage; and
a voltage boost convertor coupled to said power assembly, said voltage boost convertor configured to provide a set voltage greater than said source voltage; and

a power source configured to provide power to said DC motor and one or more components of said powered surgical instrument, wherein said primary processor decreases power to the one or more components of said powered surgical instrument based on said DC motor being actuated.

2. The powered surgical instrument of claim 1 , further comprising said staple cartridge.

3. The powered surgical instrument of claim 1 , wherein said power source comprises a rechargeable battery pack.

4. The powered surgical instrument of claim 1 , further comprising a handle, and wherein said handle comprises a display.

5. The powered surgical instrument of claim 1 , wherein said control circuit further comprises a sensor configured to measure the speed of said knife.

6. The powered surgical instrument of claim 1 , wherein said control circuit further comprises a sensor configured to monitor the position of said knife.

7. A surgical instrument, comprising:
an end effector configured to receive a staple cartridge comprising a plurality of staples removably stored therein;
a knife;
an electric motor configured to advance said knife to perform a staple firing stroke; and
a control circuit comprising a processor, a motor controller, and a circuit component, wherein said control circuit is operable in a first control state and a second control state, wherein said processor and said motor controller are in signal communication based on said control circuit being in said first control state, and wherein said control circuit is configured to decrease power to said circuit component based on said electric motor being actuated and said control circuit being in said second control state.

8. The surgical instrument of claim 7 , wherein said electric motor is electrically coupled to said processor through a plurality of H-bridge drivers and said motor controller, and wherein said processor provides data to said motor controller.

9. The surgical instrument of claim 7 , further comprising said staple cartridge.

10. The surgical instrument of claim 7 , wherein said surgical instrument further comprises a rechargeable battery pack.

11. The surgical instrument of claim 7 , further comprising a handle, and wherein said handle comprises a display.

12. The surgical instrument of claim 7 , wherein said control circuit further comprises a sensor configured to measure the speed of said knife.

13. The surgical instrument of claim 7 , wherein said control circuit further comprises a sensor configured to monitor the position of said knife.

Assignees

• Cilag Gmbh Int

Inventors

• Leimbach Richard L
• Adams Shane R
• Overmyer Mark D
• Swensgard Brett E
• Lytle Iv Thomas W
• Shelton Iv Frederick E
• Houser Kevin L

Classifications

• H02H11/006

  in case of too high or too low voltage · CPC title

• H02H7/1213

  for DC-DC converters · CPC title

• H02H3/18

  responsive to reversal of direct current · CPC title

• H02H3/087

  for DC applications · CPC title

• G06F1/3296

  by lowering the supply or operating voltage · CPC title