End effector comprising a tissue thickness compensator and progressively released attachment members

• US 10,117,652 B2
• Filed: 03/17/2016
• Issued: 11/06/2018
• Est. Priority Date: 04/29/2011
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon, LLC (Johnson & Johnson)
• Inventors: Schmid, Katherine J., Morgan, Jerome R., Korvick, Donna L., Shelton, IV, Frederick E.
• Primary Examiner(s): Long, Robert
• Application Number:
  US15/073,370
• Publication Number:
  US 20160192929A1
• Time in Patent Office: 964 Days
• Field of Search: 2271751-1821, 606219-221
• CPC Class Codes: A61B 17/00491 Surgical glue applicators surgical adhesives A61L24/00; two-component delivery syringes A61M5/19
• CPC Class Codes: A61B 17/0643 with separate closing member, e.g. for interlocking with staple
• 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 17/1155 Circular staplers comprising a plurality of staples
• CPC Class Codes: A61B 17/2909 Handles
• CPC Class Codes: A61B 2017/00004 (bio)absorbable, (bio)resorbable, resorptive for implantable prostheses A61F2210/0004
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/0053 Loading magazines or sutures into applying tools
• CPC Class Codes: A61B 2017/00561 creating a vacuum
• CPC Class Codes: A61B 2017/00818 Treatment of the gastro-intestinal system
• CPC Class Codes: A61B 2017/00862 elastic or resilient for sutures A61B2017/0618
• CPC Class Codes: A61B 2017/00884 enhancing wound closure
• CPC Class Codes: A61B 2017/00889 antimicrobial, disinfectant
• CPC Class Codes: A61B 2017/00893 pharmaceutically effective
• CPC Class Codes: A61B 2017/00898 expandable upon contact with fluid
• CPC Class Codes: A61B 2017/00942 : hydrophilic
• CPC Class Codes: A61B 2017/00951 : adhesive
• CPC Class Codes: A61B 2017/07228 : Arrangement of the staples
• CPC Class Codes: A61B 2017/07235 : containing different staples, e.g. staples of different shapes, sizes or materials
• CPC Class Codes: A61B 2017/07242 : achieving different staple heights during the same shot, e.g. using an anvil anvil having different heights or staples of different sizes
• CPC Class Codes: A61B 2017/07264 : characterised by its staple forming cavities, e.g. geometry or material
• 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 2017/2908 : Multiple segments connected by articulations
• CPC Class Codes: A61B 2017/2919 : details of linkages or pivot points
• 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 2017/2933 : camming or guiding means
• CPC Class Codes: A61B 2017/2936 : Pins in guiding slots
• CPC Class Codes: A61B 2017/2946 : Locking means
• CPC Class Codes: A61B 2017/320052 : Guides for cutting instruments by marking A61B2090/395
• CPC Class Codes: A61B 2090/0811 : for the position of a particular part of an instrument with respect to the rest of the instrument, e.g. position of the anvil of a stapling instrument
• CPC Class Codes: A61B 2090/3966 : Radiopaque markers visible in an X-ray image
• CPC Class Codes: A61B 90/92 : coded with colour
• CPC Class Codes: A61L 17/005 : containing a biologically active substance, e.g. a medicament or a biocide
• CPC Class Codes: A61L 2300/102 : Metals or metal compounds, e.g. salts such as bicarbonates, carbonates, oxides, zeolites, silicates
• CPC Class Codes: A61L 2300/232 : Monosaccharides, disaccharides, polysaccharides, lipopolysaccharides
• CPC Class Codes: A61L 2300/45 : Mixtures of two or more drugs, e.g. synergistic mixtures
• CPC Class Codes: F04C 2270/0421 : Controlled or regulated
• CPC Class Codes: H05K 999/99 : dummy group
• CPC Class Codes: Y10T 29/49826 : Assembling or joining

Abstract

A surgical end effector for cutting and stapling tissue is disclosed. The surgical end effector comprises a first iaw and second iaw configured to clamp tissue when the first and second jaws are in a clamped position. The end effector further comprises a replaceable staple cartridge and a tissue thickness compensator configured to adapt to variations in the thickness of the clamped tissue. The tissue thickness compensator comprises three fibrous patterns oriented in three different directions and a tissue contacting surface comprising a textured surface. The textures surface is configured to minimize movement of the tissue relative to the tissue thickness compensator. The end effector further comprises an I-beam comprising a first camming member, a second camming member, and a cutting member. The end effector further comprises a first attachment member and a second attachment member configured to be progressively released by said cutting member.

Claims

1. A surgical end effector for cutting and stapling tissue, wherein said surgical end effector comprises:

a first jaw;

a second jaw, wherein said second jaw is movable relative to said first jaw between an unclamped position and a clamped position, and wherein the tissue is clamped between said first jaw and said second jaw when said second jaw is in said clamped position;

a replaceable staple cartridge comprising a plurality of staples removably stored therein;

a tissue thickness compensator placed on said second jaw, wherein said tissue thickness compensator is configured to adapt to variations in the thickness of the clamped tissue, and wherein said tissue thickness compensator comprises;

three fibrous patterns, wherein said three fibrous patterns are oriented in three different directions; and

a tissue contacting surface, wherein said tissue contacting surface comprises a textured surface configured to minimize movement of the tissue relative to said tissue thickness compensator when said second jaw is moved toward said clamped position;

an I-beam configured to travel within said surgical end effector, wherein said I-beam comprises;

a first camming member configured to engage said first jaw;

a second camming member configured to engage said second jaw; and

a cutting member configured to incise the clamped tissue;

a first attachment member; and

a second attachment member spaced apart from said first attachment member, wherein said first and second attachment members are configured to attach said tissue thickness compensator to said second jaw, and wherein said first and second attachment members are progressively released by said cutting member as said I-beam travels distally within said surgical end effector.

2. The surgical end effector of claim 1, wherein said tissue contacting surfaces further comprises a flat surface.

3. The surgical end effector of claim 1, wherein said tissue contacting surfaces further comprises a stepped surface.

4. A surgical end effector for cutting and fastening tissue, wherein said surgical end effector comprises:

a first jaw;

a second jaw, wherein said second jaw is movable relative to said first jaw between an unclamped position and a clamped position, and wherein the tissue is clamped between said first jaw and said second jaw when said second jaw is in said clamped position;

a removable fastener cartridge comprising a plurality of fasteners removably stored therein;

a tissue thickness compensator placed on said first jaw, wherein said tissue thickness compensator is configured to create variable compression of the clamped tissue, and wherein said tissue thickness compensator comprises;

a proximal end;

a distal end;

three co-extensive patterns, wherein each said co-extensive pattern extends between said proximal end and said distal end, and wherein said three co-extensive patterns are oriented in three different directions; and

a tissue contacting surface, wherein said tissue contacting surface comprises a textured surface configured to minimize movement of said tissue thickness compensator relative to the tissue when said second jaw is moved toward said clamped position;

a firing member configured to travel within said surgical end effector, wherein said firing member comprises;

a first camming member configured to engage said first jaw; and

a second camming member configured to engage said second jaw;

a knife blade configured to travel distally within said surgical end effector;

a first attachment member; and

a second attachment member spaced apart from said first attachment member, wherein said first and second attachment members are configured to attach said tissue thickness compensator to said first jaw, and wherein said first and second attachment members are progressively released by said knife blade as said knife blade travels distally within said surgical end effector.

5. The surgical end effector of claim 4, wherein said tissue contacting surfaces further comprises a flat surface.

6. The surgical end effector of claim 4, wherein said tissue contacting surfaces further comprises a stepped surface.