Staple cartridge comprising a staple driver arrangement

• US 10,420,553 B2
• Filed: 04/28/2016
• Issued: 09/24/2019
• Est. Priority Date: 08/31/2005
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon, LLC (Johnson & Johnson)
• Inventors: Shelton, IV, Frederick E., Murray, Michael A., Hess, Christopher J., Weisenburgh, II, William B., Morgan, Jerome R.
• Primary Examiner(s): Chukwurah, Nathaniel C
• Application Number:
  US15/141,597
• Publication Number:
  US 20160242777A1
• Time in Patent Office: 1,244 Days
• Field of Search: 2271751-1811
• CPC Class Codes: A61B 17/064 Surgical staples, i.e. penetrating the tissue
• 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 17/0682 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 17/07292 Reinforcements for staple line, e.g. pledgets
• CPC Class Codes: A61B 17/105 Wound clamp magazines for packaging sharps A61B50/3001
• CPC Class Codes: A61B 17/1155 Circular staplers comprising a plurality of staples
• 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 2017/00004 (bio)absorbable, (bio)resorbable, resorptive for implantable prostheses A61F2210/0004
• CPC Class Codes: A61B 2017/0023 disposable
• CPC Class Codes: A61B 2017/00371 Multiple actuation, e.g. pushing of two buttons, or two working tips becoming operational
• CPC Class Codes: A61B 2017/00898 expandable upon contact with fluid
• CPC Class Codes: A61B 2017/00929 isolating electrical current
• CPC Class Codes: A61B 2017/0641 having at least three legs as part of one single body
• 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 2017/0725 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 2017/07278 : characterised by its sled or its staple holder
• CPC Class Codes: A61B 2017/2923 : Toothed members, e.g. rack and pinion
• CPC Class Codes: A61B 2017/320052 : Guides for cutting instruments by marking A61B2090/395
• CPC Class Codes: A61B 2090/034 : abutting on parts of the device itself
• CPC Class Codes: A61B 2090/037 : with a frangible part, e.g. by reduced diameter

Abstract

A staple cartridge for use with a stapling device that has an actuator that is selectively actuatable in an axial direction and an anvil portion that is selectively movable between open and closed positions is disclosed. Various embodiments of the present invention include a cartridge body that movably supports first and second staple drivers. The staple drivers each support a staple thereon and serve to drive the staples into forming contact with the anvil upon actuation by the actuator. The various embodiments of the present invention enable the final formed heights of the staples to be varied so as to apply various clamping forces and pressures to soft tissue captured within the staples. In at least one embodiment, the staples can include crowns formed thereon which can be utilized to adjust or control the clamping force and/or pressure applied by the staples.

Claims

1. A stapling assembly, comprising:

an anvil comprising an asymmetric staple-forming pocket; and

a staple cartridge, comprising;

an annular row of staple cavities; and

a plurality of staples removably stored in said staple cavities, wherein each said staple comprises;

a crown, comprising;

a first side; and

a second side opposite said first side;

a first staple leg extending from said crown; and

a second staple leg extending from said crown, wherein said asymmetric staple-forming pocket is configured to form said staple by biasing said first staple leg outwardly toward said first side and said second staple leg outwardly toward said second side.

2. An end effector, comprising:

an anvil comprising an asymmetric staple-forming pocket; and

a staple cartridge comprising;

an annular row of staple cavities; and

a plurality of staples removably stored in said staple cavities, wherein each said staple comprises;

a crown, comprising;

a first side; and

a second side opposite said first side;

a first deformable member extending from said crown; and

a second deformable member extending from said crown, wherein said asymmetric staple-forming pocket is configured to deform said first deformable member outwardly toward said first side and said second deformable member outwardly toward said second side.

3. An end effector, comprising:

an anvil comprising a staple-forming pocket, wherein said staple-forming pocket comprises;

a first forming cup; and

a second forming cup;

a staple cartridge, comprising;

an annular row of staple cavities; and

a staple removably stored in one of said staple cavities, wherein said staple comprises;

a crown, comprising;

a first side; and

a second side opposite said first side;

a first deformable member extending from said crown; and

a second deformable member extending from said crown, wherein said first forming cup is configured to deform said first deformable member outwardly toward said first side, and wherein said second forming cup is configured to deform said second deformable member outwardly toward said second side.