Stapling system comprising an instrument assembly including a lockout

• US 10,716,563 B2
• Filed: 09/20/2016
• Issued: 07/21/2020
• Est. Priority Date: 07/28/2004
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon, LLC (Johnson & Johnson)
• Inventors: Shelton, IV, Frederick E., Setser, Michael E., Weisenburgh, II, William B.
• Primary Examiner(s): Lopez, Michelle
• Application Number:
  US15/270,133
• Publication Number:
  US 20170007236A1
• Time in Patent Office: 1,400 Days
• Field of Search: 2271761, 2271751, 2271754
• CPC Class Codes: A61B 17/064 Surgical staples, i.e. penetrating the tissue
• 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 17/105 Wound clamp magazines for packaging sharps A61B50/3001
• CPC Class Codes: A61B 17/320092 with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw
• 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 2017/00017 Electrical control of surgical instruments
• 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 2017/00734 battery operated
• CPC Class Codes: A61B 2017/0688 Packages or dispensers for surgical staplers
• CPC Class Codes: A61B 2017/07257 characterised by its anvil
• CPC Class Codes: A61B 2017/07271 characterised by its cartridge
• CPC Class Codes: A61B 2017/07278 characterised by its sled or its staple holder
• CPC Class Codes: A61B 2017/07285 characterised by its cutter
• 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 2017/320052 Guides for cutting instruments by marking A61B2090/395
• CPC Class Codes: A61B 2017/320093 : additional movable means performing cutting operation
• CPC Class Codes: A61B 2017/320094 : additional movable means performing clamping operation
• CPC Class Codes: A61B 2017/320095 : with sealing or cauterizing means
• CPC Class Codes: A61B 2017/320097 : with stapling means
• CPC Class Codes: A61B 2018/00607 : Coagulation and cutting with the same instrument
• CPC Class Codes: A61B 2018/0063 : Sealing
• CPC Class Codes: A61B 2018/1455 : having a moving blade for cutting tissue grasped by the jaws
• CPC Class Codes: A61B 2034/302 : specifically adapted for manipulations within body cavities, e.g. within abdominal or thoracic cavities
• CPC Class Codes: A61B 2090/0807 : Indication means
• CPC Class Codes: A61B 34/30 : Surgical robots
• CPC Class Codes: A61B 34/37 : Master-slave robots A61B34/35 takes precedence
• CPC Class Codes: A61B 50/20 : Holders specially adapted for surgical or diagnostic appliances or instruments drapes with means to hold surgical instruments A61B46/23; for catheters A61M25/02
• CPC Class Codes: A61B 50/36 : for collecting or disposing of used articles

Abstract

A stapling system comprising a staple cartridge and an instrument assembly is disclosed. The staple cartridge comprises a cartridge body including a proximal end, a distal end, and a deck. The staple cartridge further comprises staple cavities defined in the cartridge body, staples removably stored in the staple cavities, staple drivers, and a sled movable between a proximal position and a distal position during a firing stroke. The sled is configured to lift the staple drivers toward the deck to eject the staples from the staple cavities during the firing stroke. The staple cartridge is attachable to the instrument assembly. The instrument assembly comprises a self-locking shaft configured to place itself in a locked state if the sled is not in the proximal position at the initiation of the firing stroke. The instrument assembly further comprises an anvil extending from the shaft configured to deform said staples.

Claims

1. A stapling system, comprising:

a staple cartridge, comprising;

a cartridge body including a proximal end, a distal end, and a deck;

staple cavities defined in said cartridge body;

staples removably stored in said staple cavities;

staple drivers; and

a sled movable between a proximal position and a distal position during a firing stroke, wherein said sled is configured to lift said staple drivers toward said deck to eject said staples from said staple cavities during said firing stroke; and

an instrument assembly, wherein said staple cartridge is attachable to said instrument assembly, wherein said instrument assembly comprises a shaft assembly configurable in a locked state and an unlocked state, and wherein said shaft assembly comprises;

a frame;

an outer housing;

an anvil configured to deform said staples;

a firing member configured to move said sled through said firing stroke when said shaft assembly is in said unlocked state, wherein said firing member comprises a tissue cutting edge, and wherein said sled is positioned in front of said tissue cutting edge as said staple cartridge is assembled to said instrument assembly; and

a spring-induced lockout system configured to bias said shaft assembly into said locked state, wherein said sled overcomes said bias of said spring-induced lockout system to place said shaft assembly in said unlocked state when said sled is in said proximal position.

2. A stapling system, comprising:

a staple cartridge, comprising;

a cartridge body including a proximal end, a distal end, and a deck;

staple cavities defined in said cartridge body;

staples removably stored in said staple cavities;

staple drivers; and

a sled movable between a proximal position and a distal position during a firing stroke, wherein said sled is configured to lift said staple drivers toward said deck to eject said staples from said staple cavities during said firing stroke; and

an instrument assembly, wherein said staple cartridge is attachable to said instrument assembly, wherein said instrument assembly comprises a shaft assembly configurable in a locked state and an unlocked state, wherein said shaft assembly comprises;

an anvil configured to deform said staples;

a firing member configured to move said sled through said firing stroke when said shaft assembly is in said unlocked state, wherein said firing member comprises a tissue cutting edge, and wherein said sled is positioned in front of said tissue cutting edge as said staple cartridge is assembled to said instrument assembly; and

a spring-actuated locking system configured to shift said shaft assembly into said locked state, wherein said sled overcomes said spring-actuated locking system to place said shaft assembly in said unlocked state when said sled is in said proximal position.

3. A stapling system, comprising:

a staple cartridge, comprising;

a cartridge body including a proximal end, a distal end, and a deck;

staple cavities defined in said cartridge body;

staples removably stored in said staple cavities;

staple drivers; and

a sled movable between a proximal position and a distal position during a firing stroke, wherein said sled is configured to lift said staple drivers toward said deck to eject said staples from said staple cavities during said firing stroke; and

an instrument assembly, wherein said staple cartridge is attachable to said instrument assembly, wherein said instrument assembly comprises a shaft assembly configurable in a locked state and an unlocked state, and wherein said shaft assembly comprises;

an anvil configured to deform said staples;

a firing member configured to move said sled through said firing stroke when said shaft assembly is in said unlocked state, wherein said firing member comprises a tissue cutting edge, and wherein said sled is positioned in front of said tissue cutting edge as said staple cartridge is assembled to said instrument assembly; and

a diving lock system configured to switch said shaft assembly into said locked state, wherein said diving lock system switches said shaft assembly into said unlocked state in response to said sled being in said proximal position.

4. A stapling system, comprising:

a replaceable staple cartridge, comprising;

a cartridge body including a proximal end, a distal end, and a deck;

staple cavities defined in said cartridge body;

staples removably stored in said staple cavities;

staple drivers; and

a sled movable between a proximal position and a distal position during a firing motion, wherein said sled is configured to lift said staple drivers toward said deck to eject said staples from said staple cavities during said firing motion; and

an instrument assembly, wherein said replaceable staple cartridge is attachable to said instrument assembly, and wherein said instrument assembly comprises;

a shaft;

an anvil extending from said shaft configured to deform said staples; and

a firing member configured to produce;

said firing motion when said sled is in said proximal position; and

a truncated firing motion which locks said shaft when said sled is not in said proximal position at the beginning of said firing motion.

5. A stapling system, comprising:

a staple cartridge, comprising;

a cartridge body including a proximal end, a distal end, and a deck;

staple cavities defined in said cartridge body;

staples removably stored in said staple cavities;

staple drivers; and

a sled movable between a proximal position and a distal position during a firing stroke, wherein said sled is configured to lift said staple drivers toward said deck to eject said staples from said staple cavities during said firing stroke; and

an instrument assembly, wherein said staple cartridge is attachable to said instrument assembly, and wherein said instrument assembly comprises;

a self-locking shaft configured to place itself in a locked state if said sled is not in said proximal position at the initiation of said firing stroke; and

an anvil extending from said shaft configured to deform said staples.