Surgical stapling instrument having a clearanced opening

• US 9,844,379 B2
• Filed: 03/08/2016
• Issued: 12/19/2017
• Est. Priority Date: 07/28/2004
• Status: Active Grant

• Current Assignee: Ethicon, LLC (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:
  US15/064,075
• Publication Number:
  US 20160183948A1
• Time in Patent Office: 651 Days
• Field of Search: 2271751, 2271761
• 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 assembly comprising a first jaw and a second jaw, wherein the first jaw is rotatable relative to the second jaw. The stapling assembly comprises a detachable cartridge portion comprising a plurality of staples and an anvil configured to deform the staples. The stapling assembly comprises a staple firing member comprising a first cam configured to engage the first jaw and a second cam configured to engage the second jaw when the staple firing member is advanced from an initial position, and wherein the first jaw comprises a clearanced opening configured to receive the first cam when the staple firing member is in the initial position such that the first cam is not engaged with the first jaw when the staple firing member is in the initial position.

Claims

1. A stapling assembly, comprising:

a frame;

a distal end;

a first jaw comprising a channel;

a channel retainer, wherein said channel is slidably attachable to said channel retainer;

a second jaw extending from said frame;

a plurality of staples;

a staple firing member comprising a first cam configured to engage said first jaw and a second cam configured to engage said second jaw when said staple firing member is advanced from an unadvanced position toward said distal end, wherein one of said first jaw and said second jaw comprises a clearanced opening configured to permit said firing member to be unengaged with one of said first jaw and said second jaw when said firing member is in said unadvanced position; and

a lockout configured to block the advancement of said staple firing member when said channel is not attached to said channel retainer.

2. A stapling assembly, comprising:

a frame;

a distal end;

a first jaw comprising a channel;

a channel retainer, wherein said channel is slidably attachable to said channel retainer;

a second jaw extending from said frame;

a plurality of staples;

a staple firing member comprising a first cam configured to engage said first jaw and a second cam configured to engage said second jaw when said staple firing member is advanced from an unadvanced position toward said distal end, wherein said first cam and said second cam are configured to co-operatively hold said first jaw and said second jaw relative to one another when said staple firing member is advanced toward said distal end, and wherein one of said first jaw and said second jaw comprises a clearanced opening configured to receive one of said first cam and said second cam such that said first jaw is not held to said second jaw when said staple firing member is in said unadvanced position; and

a lockout configured to block the advancement of said staple firing member when said channel is not attached to said channel retainer.

3. A stapling assembly, comprising:

a first jaw;

a second jaw, wherein said first jaw is rotatable relative to said second jaw;

a detachable cartridge portion comprising a plurality of staples;

an anvil configured to deform said staples; and

a staple firing member comprising a first cam configured to engage said first jaw and a second cam configured to engage said second jaw when said staple firing member is advanced from an initial position, and wherein said first jaw comprises a clearanced opening configured to receive said first cam when said staple firing member is in said initial position such that said first cam is not engaged with said first jaw when said staple firing member is in said initial position; and

a lockout configured to block the advancement of said staple firing member when said detachable cartridge portion is not attached to said stapling assembly.