Surgical stapling instrument

• US 9,687,231 B2
• Filed: 10/21/2013
• Issued: 06/27/2017
• Est. Priority Date: 02/13/2008
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon, LLC (Johnson & Johnson)
• Inventors: Bedi, James J., Baxter, III, Chester O.
• Primary Examiner(s): Smith, Scott A.
• Application Number:
  US14/058,802
• Publication Number:
  US 20140042205A1
• Time in Patent Office: 1,345 Days
• Field of Search: 227 19, 2271751, 2271761, 2271781, 2271801, 2271752, 606139, 606153, 606219
• CPC Class Codes: A61B 17/064 Surgical staples, i.e. penetrating the tissue
• CPC Class Codes: A61B 17/0644 penetrating the tissue, deformable to closed position
• 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 17/072 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 17/07292 Reinforcements for staple line, e.g. pledgets
• CPC Class Codes: A61B 17/115 Staplers for performing anastomosis in a single operation
• CPC Class Codes: A61B 17/1155 Circular staplers comprising a plurality of staples
• CPC Class Codes: A61B 17/2909 Handles
• CPC Class Codes: A61B 17/32 Surgical cutting instruments A61B18/042 takes precedence; suture cutters A61B17/0467; instruments for ligaturing or cutting A61B17/128; instruments for rupturing the amniotic membrane A61B17/4208; specially adapted knives for eye surgery A61F9/0133
• CPC Class Codes: A61B 2017/00367 Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
• CPC Class Codes: A61B 2017/0042 with special provisions for gripping
• CPC Class Codes: A61B 2017/00429 with a roughened portion
• CPC Class Codes: A61B 2017/00455 Orientation indicators, e.g. recess on the handle
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/00853 low friction, hydrophobic and corrosion-resistant fluorocarbon resin coating (ptf, ptfe, polytetrafluoroethylene)
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/07221 curved
• CPC Class Codes: A61B 2017/0725 with settable gap between anvil and cartridge, e.g. for different staple heights at different shots
• CPC Class Codes: A61B 2017/07264 characterised by its staple forming cavities, e.g. geometry or material
• CPC Class Codes: A61B 2017/07285 : characterised by its cutter
• CPC Class Codes: A61B 2090/0801 : Prevention of accidental cutting or pricking
• CPC Class Codes: A61B 2090/08021 : of the patient or his organs
• CPC Class Codes: A61B 2090/0813 : Accessories designed for easy sterilising, i.e. re-usable
• CPC Class Codes: A61B 2090/0814 : Preventing re-use

Abstract

A surgical stapler comprising a cartridge channel and a staple cartridge body is disclosed. The staple cartridge body comprises a longitudinal channel, a plurality of staples, a plurality of staple drivers, a staple sled, and a cutting member positioned within the staple cartridge body. The cutting member comprises an engagement portion configured to be engaged with a firing member of the stapler, wherein the cutting member is configured to be slid between a first position and a second position within the longitudinal channel. The surgical stapler further comprises an anvil assembly. The anvil assembly comprises a tissue-supporting surface and a plurality of staple cavities. Each staple cavity comprises a staple cavity centerline, a first forming cup, and a second forming cup.

Claims

1. A surgical stapler, wherein the surgical stapler comprises a cartridge channel, and wherein said surgical stapler comprises:

a staple cartridge body comprising;

a longitudinal channel;

a plurality of staples;

a plurality of staple drivers;

a staple sled; and

a cutting member positioned within said staple cartridge body prior to said staple cartridge body being assembled into the cartridge channel of the stapler, wherein said cutting member comprises an engagement portion configured to be engaged with a firing member of the stapler, wherein said cutting member is configured to be slid between a first position and a second position within said longitudinal channel; and

an anvil assembly comprising;

a tissue-supporting surface; and

a plurality of staple cavities, wherein said staple cavities are positioned along a curve, and wherein each said staple cavity comprises;

a staple cavity centerline, wherein a said staple cavity centerline of a first staple cavity is neither parallel to nor collinear with a said staple cavity centerline of a second staple cavity;

a first forming cup, comprising;

a first inside portion;

a first outside portion; and

a first interior sidewall extending between said first outside portion and said first inside portion, wherein said first interior sidewall comprises a first vertical portion which is substantially perpendicular to said tissue-supporting surface; and

a second forming cup, comprising;

a second inside portion;

a second outside portion, wherein said first inside portion is positioned in close relation to said second inside portion, wherein said first inside portion and said second inside portion are positioned offset with respect to said staple cavity centerline, wherein said first outside portion and said second outside portion are positioned on opposite sides of said first inside portion and said second inside portion, and wherein said first outside portion and said second outside portion are oriented in a direction which is transverse to said staple cavity centerline; and

a second interior sidewall extending between said second outside portion and said second inside portion, wherein said second interior sidewall comprises a second vertical portion which is substantially perpendicular to said tissue-supporting surface.

2. A surgical fastening system comprising a surgical fastening instrument comprising a cartridge channel, wherein the surgical fastening instrument further comprises:

a fastener cartridge, comprising;

a longitudinal channel;

a plurality of fasteners;

a plurality of fastener drivers; and

a cutting member positioned within said fastener cartridge prior to said fastener cartridge being assembled into the cartridge channel of the surgical fastening instrument, wherein said cutting member comprises an engagement portion configured to be engaged with a firing member of the surgical fastening instrument, wherein said cutting member is configured to be slid between a first position and a second position within said longitudinal channel; and

an anvil assembly, comprising;

a tissue-supporting surface; and

a plurality of fastener cavities, wherein each said fastener cavity comprises;

a fastener cavity centerline;

a first forming cup, comprising;

a first inside portion;

a first outside portion; and

a first interior sidewall extending between said first outside portion and said first inside portion, wherein said first interior sidewall comprises a first vertical portion; and

a second forming cup, comprising;

a second inside portion;

a second outside portion, wherein said first inside portion is positioned in close relation to said second inside portion, wherein said first inside portion and said second inside portion are positioned offset with respect to said fastener cavity centerline, wherein said first outside portion and said second outside portion are positioned on opposite sides of said first inside portion and said second inside portion, and wherein said first outside portion and said second outside portion are oriented in a direction which is transverse to said fastener cavity centerline; and

a second interior sidewall extending between said second outside portion and said second inside portion, wherein said second interior sidewall comprises a second vertical portion.