Surgical stapling instrument configured to apply a compressive pressure to tissue

• US 9,585,663 B2
• Filed: 03/08/2016
• Issued: 03/07/2017
• Est. Priority Date: 07/28/2004
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon Endo-Surgery LLC (Johnson & Johnson)
• Inventors: Shelton, Frederick E. IV, Setser, Michael E., Weisenburgh, William B. II
• Primary Examiner(s): Lopez, Michelle
• Application Number:
  US15/064,050
• Publication Number:
  US 20160183947A1
• Time in Patent Office: 364 Days
• Field of Search: 227/175.1, 227/176.1, 227/175.4
• US Class Current: 1/1
• 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 surgical stapling assembly. The surgical stapling assembly comprises a frame, a distal end, a first jaw comprising a channel, and a second jaw extending from the frame. The surgical stapling assembly comprises a channel retainer, wherein the channel is slidably attachable to the channel retainer. The surgical stapling assembly further comprises a plurality of staples and 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 unadvanced position toward the distal end, wherein one of the first jaw and the second jaw comprises a clearanced opening configured to permit the firing member to be unengaged with one of the first jaw and the second jaw when the firing member is in the unadvanced position.

Claims

1. A surgical instrument, comprising:

a handle, comprising;

a closure system configured to generate a closing motion when actuated;

a closure release system configured to releasably hold said closure system in an actuated condition; and

a firing system configured to generate a firing motion when actuated;

a shaft extending from said handle;

an articulation joint; and

an end effector movable relative to said shaft about said articulation joint, wherein said end effector comprises;

a cartridge jaw, comprising;

a deck configured to support the tissue of a patient, wherein said deck comprises a first step and a second step, wherein said second step extends above said first step;

a first longitudinal row of staple cavities defined in said first step;

a second longitudinal row of staple cavities defined in said second step;

staples removably stored in said first longitudinal row of staple cavities and said second longitudinal row of staple cavities;

a first longitudinal row of staple support cradles aligned with said first longitudinal row of staple cavities; and

a second longitudinal row of staple support cradles aligned with said second longitudinal row of staple cavities, wherein said second longitudinal row of staple support cradles extend above said first longitudinal row of staple support cradles;

an anvil configured to deform said staples;

a firing member comprising a first cam configured to engage said cartridge jaw and a second cam configured to engage said anvil; and

a tissue gap defined between said deck and said anvil configured to receive the tissue of a patient, wherein said deck and said anvil are configured to co-operatively apply a first compressive pressure to a first region of the tissue and a second compressive pressure to a second region of the tissue which is different than the first compressive pressure.

2. A stapling assembly, comprising:

a cartridge jaw, comprising;

a deck configured to support the tissue of a patient, wherein said deck comprises a first step and a second step, wherein said second step extends above said first step;

a first longitudinal row of staple cavities defined in said first step;

a second longitudinal row of staple cavities defined in said second step;

staples removably stored in said first longitudinal row of staple cavities and said second longitudinal row of staple cavities;

a first longitudinal row of staple support cradles aligned with said first longitudinal row of staple cavities; and

a second longitudinal row of staple support cradles aligned with said second longitudinal row of staple cavities, wherein said second longitudinal row of staple support cradles extend above said first longitudinal row of staple support cradles;

an anvil configured to deform said staples;

a firing member comprising a first cam configured to engage said cartridge jaw and a second cam configured to engage said anvil; and

a tissue gap defined between said deck and said anvil configured to receive the tissue of a patient, wherein said deck and said anvil are configured to co-operatively apply a first compressive pressure to a first region of the tissue and a second compressive pressure to a second region of the tissue which is different than the first compressive pressure.

3. A stapling assembly, comprising:

a cartridge jaw, comprising;

a deck configured to support the tissue of a patient, comprising;

a first step comprising a first step height; and

a second step comprising a second step height, wherein said first step height is different than said second step height;

a first longitudinal row of staple cavities defined in said first step;

a second longitudinal row of staple cavities defined in said second step;

a row of first staples removably stored in said first longitudinal row of staple cavities;

a row of second staples removably stored in said second longitudinal row of staple cavities;

a first longitudinal row of staple support cradles aligned with said first longitudinal row of staple cavities configured to support said first staples at a first unfired height; and

a second longitudinal row of staple support cradles aligned with said second longitudinal row of staple cavities configured to support said second staples at a second unfired height which is different than said first unfired height;

an anvil configured to deform said first staples and said second staples;

a firing member comprising a first cam configured to engage said cartridge jaw and a second cam configured to engage said anvil; and

a tissue gap defined between said deck and said anvil configured to receive the tissue, wherein said deck and said anvil are configured to co-operatively apply a first compressive pressure to a first region of the tissue and a second compressive pressure to a second region of the tissue which is different than the first compressive pressure.

4. A stapling assembly, comprising:

a frame;

a cartridge jaw portion attachable to said frame, said cartridge jaw portion comprising;

a deck configured to support the tissue of a patient, comprising;

a first step comprising a first step height; and

a second step comprising a second step height, wherein said first step height is different than said second step height;

a longitudinal row of first staple cavities defined in said first step;

a longitudinal row of second staple cavities defined in said second step;

a row of first staples removably stored in said longitudinal row of first staple cavities;

a row of second staples removably stored in said longitudinal row of second staple cavities;

a longitudinal row of first staple support cradles aligned with said longitudinal row of first staple cavities configured to support said first staples at a first unfired height; and

a longitudinal row of second staple support cradles aligned with said longitudinal row of second staple cavities configured to support said second staples at a second unfired height which is different than said first unfired height;

an anvil configured to deform said first staples and said second staples;

a firing member comprising a first cam configured to engage said cartridge jaw portion and a second cam configured to engage said anvil during a staple firing stroke;

a first gap region defined between said deck and said anvil configured to receive a first portion of the tissue; and

a second gap region defined between said deck and said anvil configured to receive a second portion of the tissue, wherein said deck and said anvil are configured to co-operatively apply a first compressive pressure to the first portion of the tissue and a second compressive pressure to the second portion of the tissue which is different than the first compressive pressure.