Surgical stapling apparatus with interlockable firing system

• US 10,743,870 B2
• Filed: 04/27/2018
• Issued: 08/18/2020
• Est. Priority Date: 02/14/2008
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon, LLC (Johnson & Johnson)
• Inventors: Hall, Steven G., Tanguay, Randall J., Messerly, Jeffrey D., Robertson, Galen C., Zwolinski, Andrew M., Shelton, IV, Frederick E.
• Primary Examiner(s): Smith, Scott A
• Application Number:
  US15/964,906
• Publication Number:
  US 20180310931A1
• Time in Patent Office: 844 Days
• Field of Search: 227 19, 2271751, 2271752, 2271761, 2271801, 606 1, 606139, 606219
• 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 17/0682 for applying U-shaped staples or clamps, e.g. without a forming anvil
• 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 2017/00371 Multiple actuation, e.g. pushing of two buttons, or two working tips becoming operational
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/00473 Distal part, e.g. tip or head A61B2017/00464 takes precedence
• CPC Class Codes: A61B 2017/00946 malleable
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/07271 characterised by its cartridge
• CPC Class Codes: A61B 2017/2923 Toothed members, e.g. rack and pinion
• CPC Class Codes: A61B 2017/2927 the angular position of the head being adjustable with respect to the shaft
• CPC Class Codes: A61B 2017/2929 with a head rotatable about the longitudinal axis of the shaft
• CPC Class Codes: A61B 2017/2943 Toothed members, e.g. rack and pinion
• CPC Class Codes: A61B 2017/320052 Guides for cutting instruments by marking A61B2090/395
• CPC Class Codes: A61B 2090/0813 Accessories designed for easy sterilising, i.e. re-usable
• CPC Class Codes: A61B 50/30 Containers specially adapted for packaging, protecting, dispensing, collecting or disposing of surgical or diagnostic appliances or instruments for wound clamps A61B17/10; for ligaturing clips A61B17/122; packages or dispensers for surgical gloves or finger-stalls A61B42/40

Abstract

A surgical stapling apparatus. Various embodiments include a handle assembly that has a movable handle that is movable through actuation strokes relative to a stationary handle housing. An actuation is shaft supported at least in part within the stationary handle housing and is movable in response to manipulation of the movable handle. Various embodiments further include a firing lock out assembly that is configured to selectively prevent longitudinal movement of the actuation shaft in a distal direction. A firing release trigger is supported on the movable handle for travel therewith and is configured to interface with the firing lockout assembly to selectively release the firing lockout assembly to permit the actuation shaft to move longitudinally in the distal direction upon manipulation of the movable handle.

Claims

1. A surgical instrument, comprising:

a handle comprising a rotatable trigger, wherein said rotatable trigger comprises a second trigger mounted thereon;

a shaft extending distally from said handle;

an end effector releasably attachable to said shaft, wherein said end effector comprises;

a first jaw;

a second jaw, wherein said first jaw is rotatable relative to said second jaw between an open position and a closed position; and

a staple cartridge comprising staples removably stored therein; and

a firing drive, comprising;

a firing member movable distally to close said first jaw in response to a first actuation of said rotatable trigger; and

a lock configured to prevent said firing member from moving distally after said first actuation of said rotatable trigger, wherein said lock is unlocked in response to an actuation of said second trigger, and wherein said firing member is movable distally to eject said staples from said staple cartridge in response to a second actuation of said rotatable trigger after said lock has been unlocked.

2. The surgical instrument of claim 1, wherein said rotatable trigger and said second trigger are configured to be actuated by a single hand.

3. A surgical instrument, comprising:

a handle comprising a first trigger, wherein said first trigger comprises a second trigger supported thereon;

a shaft extending distally from said handle;

an end effector, comprising;

a first jaw;

a second jaw, wherein said first jaw is rotatable relative to said second jaw between an unclamped position and a clamped position; and

a staple cartridge comprising staples removably stored therein; and

a firing drive, comprising;

a firing member movable distally to clamp said first jaw in response to an initial actuation of said first trigger; and

a lock configured to prevent said firing member from being moved distally after said initial actuation of said first trigger, wherein said lock is unlocked in response to an actuation of said second trigger, and wherein said firing member is movable distally to eject said staples from said staple cartridge in response to a subsequent actuation of said first trigger after said lock has been unlocked.

4. The surgical instrument of claim 3, wherein said first trigger and said second trigger are configured to be actuated by a single hand.

5. A surgical instrument, comprising:

a handle;

a shaft extending distally from said handle;

an end effector, comprising;

a first jaw;

a second jaw, wherein said first jaw is rotatable relative to said second jaw between an unclamped position and a clamped position; and

a staple cartridge comprising staples removably stored therein;

a trigger, wherein said trigger comprises a release actuator supported thereon; and

a firing drive, comprising;

a firing member movable distally to clamp said first jaw in response to a clamping actuation of said trigger; and

a lock configured to prevent said firing member from being moved distally after said clamping actuation of said trigger, wherein said lock is unlocked in response to an actuation of said release actuator, and wherein said firing member is movable distally to perform a staple firing stroke in response to a subsequent actuation of said trigger after said lock has been unlocked.

6. The surgical instrument of claim 5, wherein said trigger and said release actuator are configured to be actuated by a single hand.

7. A surgical instrument, comprising:

a handle;

a shaft extending distally from said handle;

an end effector, comprising;

a first jaw;

a second jaw, wherein said first jaw is rotatable relative to said second jaw between an unclamped position and a clamped position; and

a staple cartridge comprising staples removably stored therein;

a trigger, wherein said trigger comprises a release actuator supported thereon; and

a firing drive, comprising;

a firing member movable distally from a first position to a second position to clamp said first jaw in response to a first actuation of said trigger; and

a lock configured to prevent said firing member from being moved distally beyond said second position, wherein said lock is unlocked in response to an actuation of said release actuator, and wherein said firing member is movable distally beyond said second position to perform a staple firing stroke in response to a second actuation of said trigger after said lock has been unlocked.

8. The surgical instrument of claim 7, wherein said trigger and said release actuator are configured to be actuated by a single hand.