SURGICAL INSTRUMENT COMPRISING A CLOSING DRIVE AND A FIRING DRIVE OPERATED FROM THE SAME ROTATABLE OUTPUT

• US 20140305989A1
• Filed: 04/09/2014
• Published: 10/16/2014
• Est. Priority Date: 04/16/2013
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Inventors: Parihar, Shailendra K., Hibner, John A.
• Granted Patent: US 9,649,110 B2
• Time in Patent Office: Days
• US Class Current: 227/176.1
• 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 17/0686 having a forming anvil staying below the tissue during stapling
• CPC Class Codes: A61B 17/072 for applying a row of staples in a single action , e.g. the staples being applied simultaneously
• 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 17/1155 Circular staplers comprising a plurality of staples
• CPC Class Codes: A61B 17/282 Jaws
• CPC Class Codes: A61B 2017/00017 Electrical control of surgical instruments
• CPC Class Codes: A61B 2017/00115 with audible or visual output
• CPC Class Codes: A61B 2017/00199 with a console, e.g. a control panel with a display
• CPC Class Codes: A61B 2017/0023 disposable
• CPC Class Codes: A61B 2017/00367 Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
• CPC Class Codes: A61B 2017/00393 with means for switching between functions
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/0046 with a releasable handle; with handle and operating part separable
• CPC Class Codes: A61B 2017/00464 for use with different instruments
• CPC Class Codes: A61B 2017/00473 Distal part, e.g. tip or head A61B2017/00464 takes precedence
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/00734 battery operated
• CPC Class Codes: A61B 2017/0688 Packages or dispensers for surgical staplers
• CPC Class Codes: A61B 2017/07214 : Stapler heads
• CPC Class Codes: A61B 2017/07221 : curved
• CPC Class Codes: A61B 2017/07235 : containing different staples, e.g. staples of different shapes, sizes or materials
• CPC Class Codes: A61B 2017/07242 : achieving different staple heights during the same shot, e.g. using an anvil anvil having different heights or staples of different sizes
• 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 2017/2902 : characterized by features of the actuating rod
• CPC Class Codes: A61B 2017/2903 : transferring rotary motion
• CPC Class Codes: A61B 2017/2912 : transmission of forces to actuating rod or piston
• CPC Class Codes: A61B 2017/2922 : toggle linkages
• CPC Class Codes: A61B 2017/2923 : Toothed members, e.g. rack and pinion
• CPC Class Codes: A61B 2017/2932 : Transmission of forces to jaw members
• CPC Class Codes: A61B 2017/2933 : camming or guiding means
• CPC Class Codes: A61B 2017/2936 : Pins in guiding slots
• CPC Class Codes: A61B 2017/2943 : Toothed members, e.g. rack and pinion
• CPC Class Codes: A61B 2017/2946 : Locking means
• CPC Class Codes: A61B 2090/038 : during shipment
• CPC Class Codes: A61B 2090/0811 : for the position of a particular part of an instrument with respect to the rest of the instrument, e.g. position of the anvil of a stapling instrument
• CPC Class Codes: A61B 34/30 : Surgical robots
• CPC Class Codes: Y02A 90/10 : Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation

Abstract

A surgical instrument can comprise an end effector, a first drive configured to perform a first end effector function, a second drive configured to perform a second end effector function, and a rotatable shaft. The rotatable shaft can comprise a first thread, wherein the first drive is engageable with the first thread to perform the first end effector function, and a second thread, wherein the second drive is engageable with the second thread to perform the second end effector function, and wherein the first thread is at least partially co-extensive with or overlaps the second thread.

Claims

1. A surgical instrument, comprising:

an end effector;

comprising;

a fastener cartridge comprising a plurality of fasteners removably stored therein; and

an anvil configured to deform said fasteners;

a closure drive configured to move said anvil relative to said fastener cartridge;

a firing drive configured to deploy said fasteners from said fastener cartridge; and

a rotatable shaft, comprising;

a first thread, wherein said closure drive is engageable with said first thread to move said anvil; and

a second thread, wherein said firing drive is engageable with said second thread to deploy said fasteners, and wherein said first thread at least partially overlaps said second thread.

2. The surgical instrument of claim 1, further comprising a motor, wherein said motor comprises a rotatable output operably engaged with said rotatable shaft.

3. The surgical instrument of claim 1, wherein said closure drive comprises a closure pin engaged with said first thread, wherein said closure pin is configured to translate along a first path, wherein said firing drive comprises a firing nut threadably engaged with said second thread, wherein said firing nut is configured to translate along a second path, and wherein said first path and said second path at least partially overlap.

4. The surgical instrument of claim 3, wherein said closure pin is configured to pass by said firing nut when translating along said first path.

5. The surgical instrument of claim 4, wherein said firing nut comprises a slot defined therein, and wherein said closure pin is configured to pass through said slot.

6. The surgical instrument of claim 1, wherein said first thread comprises a first thread pitch and said second thread comprises a second thread pitch, and wherein said first thread pitch is different than said second thread pitch.

7. The surgical instrument of claim 6, wherein said first thread pitch comprises a non-constant thread pitch, and wherein said second thread pitch comprises a constant thread pitch.

8. A surgical instrument, comprising:

an end effector;

a first drive configured to perform a first end effector function;

a second drive configured to perform a second end effector function; and

a rotatable shaft, comprising;

a first thread, wherein said first drive is engageable with said first thread to perform said first end effector function; and

a second thread, wherein said second drive is engageable with said second thread to perform said second end effector function, and wherein said first thread is at least partially co-extensive with said second thread.

9. The surgical instrument of claim 8, further comprising a motor, wherein said motor comprises a rotatable output operably engaged with said rotatable shaft.

10. The surgical instrument of claim 8, wherein said first drive comprises a closure pin engaged with said first thread, wherein said closure pin is configured to translate along a first path, wherein said second drive comprises a firing nut threadably engaged with said second thread, wherein said firing nut is configured to translate along a second path, and wherein said first path and said second path are at least partially co-extensive.

11. The surgical instrument of claim 10, wherein said closure pin is configured to pass by said firing nut when translating along said first path.

12. The surgical instrument of claim 11, wherein said firing nut comprises a slot defined therein, and wherein said closure nut is configured to pass through said slot.

13. The surgical instrument of claim 8, wherein said first thread comprises a first thread pitch and said second thread comprises a second thread pitch, and wherein said first thread pitch is different than said second thread pitch.

14. The surgical instrument of claim 13, wherein said first thread pitch comprises a non-constant thread pitch, and wherein said second thread pitch comprises a constant thread pitch.

15. A surgical instrument, comprising:

an end effector;

comprising;

a fastener cartridge comprising a plurality of fasteners removably stored therein; and

an anvil configured to deform said fasteners;

a closure drive configured to move said anvil relative to said fastener cartridge;

a firing drive configured to deploy said fasteners from said fastener cartridge; and

a rotatable shaft, comprising;

a first thread, wherein said closure drive comprises a closure pin engageable with said first thread to move said anvil, and wherein said closure pin is configured to translate along a first path; and

a second thread, wherein said firing drive comprises a firing nut engageable with said second thread to deploy said fasteners, wherein said firing nut is configured to translate along a second path, and wherein said first path and said second path at least partially overlap.

16. The surgical instrument of claim 15, wherein said closure pin is configured to pass by said firing nut when translating along said first path.

17. The surgical instrument of claim 16, wherein said firing nut comprises a slot defined therein, and wherein said closure nut is configured to pass through said slot.

18. The surgical instrument of claim 15, wherein said first thread comprises a first thread pitch and said second thread comprises a second thread pitch, and wherein said first thread pitch is different than said second thread pitch.

19. The surgical instrument of claim 18, wherein said first thread pitch comprises a non-constant thread pitch, and wherein said second thread pitch comprises a constant thread pitch.

20. The surgical instrument of claim 15, further comprising a motor, wherein said motor comprises a rotatable output operably engaged with said rotatable shaft.