Stapling system comprising a lockout

• US 9,839,429 B2
• Filed: 09/09/2015
• Issued: 12/12/2017
• Est. Priority Date: 02/15/2008
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon Endo-Surgery LLC (Johnson & Johnson)
• Inventors: Weisenburgh, II, William B., Morgan, Jerome R., Moore, Kyle P., Hueil, Geoffrey C., Ortiz, Mark S., Hoffman, Douglas B., Weizman, Patrick A., Bruewer, Dean B., Blair, Gregory B., Shelton, IV, Frederick E.
• Primary Examiner(s): Lopez, Michelle
• Application Number:
  US14/849,125
• Publication Number:
  US 20160000439A1
• Time in Patent Office: 825 Days
• Field of Search: 2271751, 2271754, 2271753
• 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 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 17/105 Wound clamp magazines for packaging sharps A61B50/3001
• CPC Class Codes: A61B 17/3205 Excision instruments
• CPC Class Codes: A61B 17/3209 Incision instruments
• CPC Class Codes: A61B 2017/00473 Distal part, e.g. tip or head A61B2017/00464 takes precedence
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/2931 with releasable head

Abstract

A stapling assembly system for use with a surgical stapling instrument is disclosed. The stapling assembly system comprises a shaft portion and a first replaceable cartridge jaw that comprises a first retainer configured to prevent first staple drivers from falling out of said first replaceable cartridge jaw. The stapling assembly system further comprises a second replaceable cartridge jaw that comprises a second retainer configured to prevent second staple drivers from falling out of said second replaceable cartridge jaw. The stapling assembly system further comprises a second jaw comprising an anvil, a firing member configured to engage said first staple drivers during a first firing stroke of said firing member and said second staple drivers during a second firing stroke of said firing member, and a lockout configured to selectively prevent said firing member from being advanced through a said firing stroke.

Claims

1. A stapling assembly system for use with a surgical stapling instrument, said stapling assembly system comprising:

a shaft portion comprising a proximal end operably engageable with the surgical stapling instrument;

a first replaceable cartridge jaw, comprising;

a first top portion configured to support tissue;

first staple cavities defined in said first top portion;

a first bottom portion;

first staples removably stored in said first staple cavities;

a first sled movable between an unfired position and a fired position;

first staple drivers configured to eject said first staples from said first staple cavities; and

a first retainer extending around said first bottom portion configured to prevent said first staple drivers from falling out of said first replaceable cartridge jaw through said first bottom portion;

a second replaceable cartridge jaw, comprising;

a second top portion configured to support tissue;

second staple cavities defined in said second top portion;

a second bottom portion;

second staples removably stored in said second staple cavities;

a second sled movable between an unfired position and a fired position;

second staple drivers configured to eject said second staples from said second staple cavities; and

a second retainer extending around said second bottom portion configured to prevent said second staple drivers from falling out of said second replaceable cartridge jaw through said second bottom portion;

a second jaw comprising an anvil configured to deform said first staples and said second staples;

a firing member configured to engage said first staple drivers during a first firing stroke of said firing member and said second staple drivers during a second firing stroke of said firing member; and

a lockout configured to selectively prevent said firing member from being advanced through a said firing stroke.

2. A re-usable loading unit system for use with a surgical stapling instrument, said re-usable loading unit system comprising:

a shaft portion comprising a proximal end operably engageable with the surgical stapling instrument;

a first replaceable cartridge, comprising;

a first top portion configured to support tissue;

first staple cavities defined in said first top portion;

a first bottom portion;

first staples removably stored in said first staple cavities;

a first sled movable between an unfired position and a fired position;

first staple drivers configured to eject said first staples from said first staple cavities; and

a first retainer extending around said first bottom portion configured to prevent said first staple drivers from falling out of said first replaceable cartridge through said first bottom portion;

a second replaceable cartridge, comprising;

a second top portion configured to support tissue;

second staple cavities defined in said second top portion;

a second bottom portion;

second staples removably stored in said second staple cavities;

a second sled movable between an unfired position and a fired position;

second staple drivers configured to eject said second staples from said second staple cavities; and

a second retainer extending around said second bottom portion configured to prevent said second staple drivers from falling out of said second replaceable cartridge through said second bottom portion;

a second jaw comprising an anvil configured to deform said first staples and said second staples;

a firing member configured to engage said first staple drivers during a first firing stroke of said firing member and said second staple drivers during a second firing stroke of said firing member; and

a lockout comprising a locked configuration and an unlocked configuration configured to selectively prevent said firing member from being advanced through a said firing stroke.