Surgical stapling system comprising a grooved forming pocket

• US 10,285,705 B2
• Filed: 04/01/2016
• Issued: 05/14/2019
• Est. Priority Date: 04/01/2016
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon, LLC (Johnson & Johnson)
• Inventors: Shelton, IV, Frederick E., Harris, Jason L.
• Primary Examiner(s): Smith, Scott A
• Application Number:
  US15/089,304
• Publication Number:
  US 20170281188A1
• Time in Patent Office: 1,138 Days
• Field of Search: 227 19, 2271751, 2271761, 2271801, 227902, 227155, 606139, 606153, 606219
• 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 17/0686 having a forming anvil staying below the tissue during stapling
• 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 2017/00017 Electrical control of surgical instruments
• CPC Class Codes: A61B 2017/00115 with audible or visual output with imaging means A61B90/37, A61B34/20
• 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 2017/0038 Simultaneous actuation of two tools by pushing one button or the like
• CPC Class Codes: A61B 2017/00393 with means for switching between functions
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/00407 Ratchet means
• CPC Class Codes: A61B 2017/00424 ergonomic, e.g. fitting in fist
• CPC Class Codes: A61B 2017/0046 with a releasable handle; with handle and operating part separable for prosthetic joint-implanting tools A61F2/4603
• CPC Class Codes: A61B 2017/00464 for use with different instruments with hole for different instruments A61B2017/22072
• CPC Class Codes: A61B 2017/00473 Distal part, e.g. tip or head A61B2017/00464 takes precedence
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/00734 : battery operated
• CPC Class Codes: A61B 2017/07221 : curved
• 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 2017/0725 : 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 2017/07271 : 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 2017/2903 : transferring rotary motion
• CPC Class Codes: A61B 2017/2908 : Multiple segments connected by articulations
• CPC Class Codes: A61B 2017/291 : the position of the handle being adjustable with respect to the shaft
• CPC Class Codes: A61B 2017/2912 : transmission of forces to actuating rod or piston
• CPC Class Codes: A61B 2017/2922 : toggle linkages
• 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 2017/293 : with means preventing relative rotation between the shaft and the actuating rod
• CPC Class Codes: A61B 2017/2932 : Transmission of forces to jaw members
• CPC Class Codes: A61B 2090/034 : abutting on parts of the device itself
• CPC Class Codes: A61B 2090/0808 : for indicating correct assembly of components, e.g. of the surgical apparatus
• 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

Abstract

An end effector for use with a surgical fastening instrument is disclosed which comprises a staple cartridge and an anvil. The staple cartridge comprises a cartridge body including a deck and, in addition, fasteners removably stored in the cartridge body, wherein each fastener comprises a base and a leg extending from the base. The anvil comprises a tissue compression surface and forming pockets defined in the tissue compression surface. Each forming pocket comprises a first end configured to receive a staple leg, a second end, a central axis extending between the first end and the second end, a concave turning surface extending between the first end and the second end, and a channel defined in the concave turning surface, wherein the channel is laterally offset from the central axis.

Claims

1. An end effector of a surgical stapling instrument, comprising:

a staple cartridge, comprising;

a cartridge body including a deck; and

staples removably stored in said cartridge body, wherein each said staple comprises;

a base;

a first leg extending from said base; and

a second leg extending from said base; and

an anvil, comprising;

a tissue compression surface; and

forming pockets defined in said tissue compression surface, wherein said forming pockets comprise;

a first forming pocket, comprising;

a first end configured to receive said first leg;

a second end;

a central longitudinal axis extending between said first end and said second end;

a concave turning surface extending between said first end and said second end; and

a groove defined in said concave turning surface, wherein said groove is laterally offset from said central longitudinal axis; and

a second forming pocket, comprising;

a first end configured to receive said second leg;

a second end;

a central longitudinal axis extending between said first end and said second end of said second forming pocket;

a concave turning surface extending between said first end and said second end of said second forming pocket; and

a groove defined in said concave turning surface of said second forming pocket, wherein said groove of said second forming pocket is laterally offset from said central longitudinal axis of said second forming pocket in the same direction as said groove of said first forming pocket.

2. The end effector of claim 1, wherein each said groove is parallel to each said central longitudinal axis.

3. The end effector of claim 1, wherein each said groove extends between each said first end and each said second end of each said forming pocket.

4. The end effector of claim 1, wherein each said turning surface comprises a bottom of each said forming pocket, and wherein each said groove is deeper than each said bottom.

5. The end effector of claim 1, wherein said grooves of said forming pockets are aligned with one another.

6. The end effector of claim 1, wherein said forming pockets are arranged in an annular array, and wherein said groove of each said forming pocket is positioned along a circumference.

7. An end effector for use with a surgical fastening instrument, comprising:

a staple cartridge, comprising;

a cartridge body including a deck; and

fasteners removably stored in said cartridge body, wherein each said fastener comprises;

a base;

a proximal leg extending from said base; and

a distal leg extending from said base; and

an anvil, comprising;

a tissue compression surface;

a pair of forming pockets defined in said tissue compression surface, wherein said pair of forming pockets is configured to deform a said proximal leg and a said distal leg of a said fastener, and wherein each said forming pocket of said pair of forming pockets comprises;

a first end configured to receive a said leg;

a second end;

a central axis extending between said first end and said second end;

a concave turning surface extending between said first end and said second end; and

a channel defined in said concave turning surface, wherein said channel is laterally offset from said central axis,

wherein each said channel of each said forming pocket of said pair of forming pockets is laterally offset from each said central axis in the same direction.

8. The end effector of claim 7, wherein said channel is parallel to said central axis.

9. The end effector of claim 7, wherein said channel extends between said first end and said second end of said forming pocket.

10. The end effector of claim 7, wherein said turning surface comprises a bottom of said forming pocket, and wherein said channel is deeper than said bottom.

11. The end effector of claim 7, wherein said channels of said forming pockets are aligned with one another.

12. The end effector of claim 7, wherein said forming pockets are arranged in an annular array, and wherein said channel of each said forming pocket is positioned along a circumference.

13. An anvil of a surgical fastening instrument, comprising:

a tissue compression surface; and

forming pockets defined in said tissue compression surface, wherein said forming pockets comprises a pair of forming pockets configured to deform a first leg and a second leg of a fastener, and wherein each said forming pocket of said pair of forming pockets comprises;

a first end configured to receive a said leg;

a second end;

a central axis extending between said first end and said second end, wherein said central axis defines a first side of each said forming pocket and a second side of each said forming pocket;

a concave turning surface extending between said first end and said second end; and

a channel defined in said concave turning surface, wherein said channel is laterally offset from said central axis,

wherein each said channel of each said forming pocket of said pair of forming pockets is positioned on the same side of each said forming pocket.

14. The anvil of claim 13, wherein said channel is parallel to said central axis.

15. The anvil of claim 13, wherein said channel extends between said first end and said second end of said forming pocket.

16. The anvil of claim 13, wherein said turning surface comprises a bottom of said forming pocket, and wherein said channel is deeper than said bottom.

17. The anvil of claim 13, wherein said channels of said forming pockets are aligned with one another.

18. The anvil of claim 13, wherein said forming pockets are arranged in an annular array, and wherein said channel of each said forming pocket is positioned along a circumference.