Motorized surgical cutting and fastening instrument having handle based power source

• US 9,522,029 B2
• Filed: 03/12/2013
• Issued: 12/20/2016
• Est. Priority Date: 02/14/2008
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon Endo-Surgery LLC (Johnson & Johnson)
• Inventors: Yates, David C., Giordano, James R., Shelton, Frederick E. IV
• Primary Examiner(s): Smith, Scott A.
• Application Number:
  US13/795,205
• Publication Number:
  US 20130190757A1
• Time in Patent Office: 1,379 Days
• Field of Search: 227/19, 227/175.1, 227/175.2, 227/176.1, 227/180.1, 606/139, 606/153, 606/219
• US Class Current: 1/1
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• CPC Class Codes: A61B 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 17/115 Staplers for performing anastomosis in a single operation
• CPC Class Codes: A61B 18/00 Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body eye surgery A61F9/007; ear surgery A61F11/00
• 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 2017/00203 with speech control or speech recognition
• CPC Class Codes: A61B 2017/00327 with actuating members moving in opposite directions
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/00464 for use with different instruments with hole for different instruments A61B2017/22072
• CPC Class Codes: A61B 2017/00482 with a code
• CPC Class Codes: A61B 2017/00734 battery operated
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/0725 with settable gap between anvil and cartridge, e.g. for different staple heights at different shots
• CPC Class Codes: A61B 2017/2905 flexible
• CPC Class Codes: A61B 2018/0016 Energy applicators arranged in a two- or three dimensional array
• CPC Class Codes: A61B 2018/00988 Means for storing information, e.g. calibration constants, or for preventing excessive use, e.g. usage, service life counter
• CPC Class Codes: A61B 2090/031 torque limiting
• CPC Class Codes: A61B 90/98 using electromagnetic means, e.g. transponders

Abstract

In various embodiments, a cordless instrument for cutting and coagulating tissue is provided. The cordless instrument comprises a handle comprising a power supply system, wherein the power supply system comprises a battery, an oscillator, and an amplifier. The cordless instrument further comprises an end effector comprising a battery-powered electrode and a moveable cutting member. The cordless instrument further comprises a conductor extending between the power supply system and the battery-powered electrode.

Claims

1. A cordless instrument for cutting and coagulating tissue, the cordless instrument comprising:

a handle comprising a power supply system, wherein said power supply system comprises a battery, an oscillator, and an amplifier;

an end effector, comprising;

a battery-powered electrode; and

a moveable cutting member; and

a conductor extending between said power supply system and said battery-powered electrode.

2. The cordless instrument of claim 1, wherein said handle further comprises an actuator in communication with said power supply system.

3. The cordless instrument of claim 1, further comprising a shaft intermediate said handle and said end effector, wherein said conductor extends at least partially through said shaft.

4. The cordless instrument of claim 3, wherein said shaft further comprises an articulation joint.

5. The cordless instrument of claim 1, wherein said end effector further comprises:

a first jaw comprising said battery-powered electrode; and

a second jaw comprising a second battery-powered electrode.

6. The cordless instrument of claim 5, wherein said conductor comprises a first conductor, and wherein said cordless instrument further comprises a second conductor extending between said power supply system and said second battery-powered electrode.

7. The cordless instrument of claim 6, wherein said first conductor comprises a supply path, and wherein said second conductor comprises a return path.

8. The cordless instrument of claim 1, wherein said power supply system further comprises a radio frequency signal generator operably coupled to said battery.

9. The cordless instrument of claim 1, wherein said end effector further comprises:

a first jaw comprising a gap spacing pin; and

a second jaw, wherein said gap spacing pin is configured to abut said second jaw when said end effector is in a clamped configuration.

10. The cordless instrument of claim 1, wherein said battery is configured to deliver a pulsed load.

11. A surgical instrument configured to delivery energy at a radio frequency, the surgical instrument comprising:

an end effector, comprising;

a battery-powered electrode; and

a moveable cutting member;

a conductor extending to said battery-powered electrode; and

a handle comprising a power supply system, wherein said power supply system comprises an oscillator, an amplifier, and means for supplying power to said conductor.

12. The surgical instrument of claim 11, further comprising an articulation joint intermediate said end effector and said handle.

13. The surgical instrument of claim 11, wherein said end effector further comprises:

a first jaw comprising said battery-powered electrode; and

a second jaw comprising a second battery-powered electrode, wherein said moveable cutting member is configured to move along an axis intermediate said first jaw and said second jaw.

14. The surgical instrument of claim 13, further comprising a second conductor extending to said second battery-powered electrode.

15. The surgical instrument of claim 13, wherein said power supply system further comprises a switch for actuating said means.

16. The surgical instrument of claim 15, further comprising a closure trigger for moving said first jaw toward said second jaw.

17. The surgical instrument of claim 11, wherein said end effector further comprises:

a first jaw comprising a gap spacing pin; and

a second jaw, wherein said gap spacing pin is configured to abut said second jaw when said end effector is in a clamped configuration.

18. The surgical instrument of claim 11, wherein said means for supplying power is configured to deliver a pulsed load.

19. A surgical instrument configured to delivery energy at a radio frequency, the surgical instrument comprising:

an end effector, comprising;

a battery-powered electrode; and

a moveable cutting member; and

a conductor extending to said battery-powered electrode; and

a handle comprising a power supply system, wherein said power supply system comprises a battery for supplying power, an oscillator, and an amplifier.

20. The surgical instrument of claim 19, wherein said end effector further comprises:

a first jaw comprising said battery-powered electrode; and

a second jaw comprising a second battery-powered electrode, wherein said moveable cutting member is configured to move along an axis intermediate said first jaw and said second jaw.

21. The surgical instrument of claim 19, wherein said end effector further comprises:

a first jaw comprising a gap spacing pin; and

a second jaw, wherein said gap spacing pin is configured to abut said second jaw when said end effector is in a clamped configuration.

22. The surgical instrument of claim 19, wherein said battery is configured to deliver a pulsed load.

23. A battery-powered surgical instrument configured to cut and coagulate tissue, the battery-powered surgical instrument comprising:

a handle, comprising;

a power source; and

a radio frequency signal generator operably coupled to said power source and comprising an oscillator and an amplifier;

a first conductor extending from said radio frequency signal generator;

a second conductor extending from said radio frequency signal generator; and

an end effector, comprising;

a first jaw comprising a first battery-powered electrode, wherein said first conductor is operably coupled to said first battery-powered electrode; and

a second jaw comprising a second battery-powered electrode, wherein said second conductor is operably coupled to said second battery-powered electrode.

24. The battery-powered surgical instrument of claim 23, further comprising an articulation joint between said handle and said end effector.

25. The battery-powered surgical instrument of claim 23, wherein said handle further comprises a switch, and wherein activation of said switch activates said power source.

26. The battery-powered surgical instrument of claim 23, wherein said first jaw comprises a gap spacing pin configured to abut said second jaw when said end effector is in a clamped configuration.

27. The battery-powered surgical instrument of claim 23, wherein said power source is configured to deliver a pulsed load.