Surgical stapling instrument having a releasable buttress material

• US 20090001125A1
• Filed: 06/29/2007
• Published: 01/01/2009
• Est. Priority Date: 03/15/2007
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Inventors: Hess, Christopher J., Weisenburgh, William B. II, Shurlleff, Carl J.
• Granted Patent: US 7,673,782 B2
• Time in Patent Office: Days
• US Class Current: 227/176.100
• 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 17/068 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 17/0682 for applying U-shaped staples or clamps, e.g. without a forming anvil
• 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 17/1114 of the digestive tract, e.g. bowels or oesophagus
• 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 17/135 inflatable for measuring blood pressure A61B5/022; inflatable pressure pads A61F5/34
• CPC Class Codes: A61B 2017/00004 (bio)absorbable, (bio)resorbable, resorptive for implantable prostheses A61F2210/0004
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/00734 battery operated
• CPC Class Codes: A61B 2017/00818 Treatment of the gastro-intestinal system
• CPC Class Codes: A61B 2017/00893 pharmaceutically effective
• CPC Class Codes: A61B 2017/00898 : expandable upon contact with fluid
• CPC Class Codes: A61B 2017/07228 : Arrangement of the staples
• CPC Class Codes: A61B 2017/07257 : characterised by its anvil
• CPC Class Codes: A61B 2017/07264 : characterised by its staple forming cavities, e.g. geometry or material
• CPC Class Codes: A61B 2017/2905 : flexible
• CPC Class Codes: A61B 2017/2927 : the angular position of the head being adjustable with respect to the shaft
• CPC Class Codes: A61B 2017/2929 : with a head rotatable about the longitudinal axis of the shaft
• CPC Class Codes: A61B 2017/320052 : Guides for cutting instruments by marking A61B2090/395
• CPC Class Codes: A61B 2090/031 : torque limiting
• CPC Class Codes: A61B 2090/037 : with a frangible part, e.g. by reduced diameter
• CPC Class Codes: A61B 90/39 : Markers, e.g. radio-opaque or breast lesions markers
• CPC Class Codes: A61F 5/0086 : using clamps, folding means or the like
• CPC Class Codes: F01P 2023/08 : Microprocessor; Microcomputer
• CPC Class Codes: F01P 2031/30 : Cooling after the engine is stopped
• CPC Class Codes: F01P 2037/02 : starting
• CPC Class Codes: F01P 5/04 : Pump-driving arrangements
• CPC Class Codes: F01P 5/10 : Pumping liquid coolant; Arrangements of coolant pumps
• CPC Class Codes: F01P 7/08 : by cutting in or out of pumps
• CPC Class Codes: F01P 7/16 : by thermostatic control
• CPC Class Codes: F01P 7/162 : by cutting in and out of pumps
• CPC Class Codes: F02D 11/105 : characterised by the function converting demand to actuation, e.g. a map indicating relations between an accelerator pedal position and throttle valve opening or target engine torque
• CPC Class Codes: F02D 2011/102 : at least one throttle being moved only by an electric actuator
• CPC Class Codes: F02D 2011/104 : using electric step motors
• CPC Class Codes: F02D 2041/0095 : Synchronisation of the cylinders during engine shutdown
• CPC Class Codes: F02D 2041/389 : for injecting directly into the cylinder
• CPC Class Codes: F02D 2200/501 : Vehicle speed
• CPC Class Codes: F02D 2200/602 : Pedal position
• CPC Class Codes: F02D 2200/604 : Engine control mode selected by driver, e.g. to manually start particle filter regeneration or to select driving style
• CPC Class Codes: F02D 31/002 : controlling air supply
• CPC Class Codes: F02D 35/025 : by determining temperatures inside the cylinder, e.g. combustion temperatures
• CPC Class Codes: F02D 41/042 : for stopping the engine
• CPC Class Codes: F02D 41/065 : at hot start or restart F02D41/067 takes precedence
• CPC Class Codes: F02D 41/3094 : the fuel injection being effected by at least two different injectors, e.g. one in the intake manifold and one in the cylinder
• CPC Class Codes: F02D 41/3809 : Common rail control systems common rail apparatus F02M55/025, F02M63/0225
• CPC Class Codes: F02D 41/401 : Controlling injection timing F02D41/402 takes precedence
• CPC Class Codes: F02D 41/402 : Multiple injections
• CPC Class Codes: F02N 11/0814 : comprising means for controlling automatic idle-start-stop
• CPC Class Codes: F02N 19/02 : Aiding engine start by thermal means, e.g. using lighted wicks
• CPC Class Codes: Y02T 10/40 : Engine management systems
• CPC Class Codes: Y10S 227/902 : Surgical clips or staples

Abstract

A surgical stapler including an anvil, a staple cartridge, and a buttress material removably retained to the anvil and/or staple cartridge. In various embodiments, the staple cartridge can include at least one staple removably stored therein which can, when deployed, or fired, therefrom, contact the buttress material and remove the buttress material from the anvil and/or staple cartridge. In at least one embodiment, the anvil can include at least one lip and/or groove configured to removably retain the buttress material to the anvil until deformable members extending from the surgical staple are bent by the anvil and are directed toward and contact the buttress material.

Claims

1. A surgical stapler, comprising:

an anvil including a first lip; and

a buttress material, wherein said buttress material is releasably retained to said anvil by said first lip.

2. The surgical stapler of claim 1, further comprising a staple cartridge and a surgical staple removably stored within said staple cartridge, wherein said surgical staple includes a deformable member.

3. The surgical stapler of claim 2, wherein said anvil further comprises at least one pocket, wherein said anvil pocket is configured to deform said deformable member, and wherein said buttress material is located between said staple cartridge and said anvil pocket.

4. The surgical stapler of claim 2, wherein said deformable member is configured to extend through said buttress material in a first direction, and wherein said deformable member is configured to engage said buttress member in a second direction after being deformed by said anvil.

5. The surgical stapler of claim 4, wherein said deformable member is configured to release said buttress material from said anvil when said deformable member engages said buttress material in said second direction.

6. The surgical stapler of claim 4, wherein said buttress material includes an aperture configured to receive said deformable member and allow said deformable member to extend therethrough in said first direction without piercing said buttress material.

7. The surgical stapler of claim 4, wherein said deformable member is configured to pierce said buttress material when said deformable member engages said buttress material in said second direction.

8. The surgical stapler of claim 4, further comprising a second staple removably stored within said staple cartridge, wherein said second staple includes a deformable member, wherein said deformable member of said second staple is configured to extend through said buttress material in a first direction, and wherein said deformable member of said second staple is configured to engage said buttress member in a second direction after being deformed by said anvil.

9. The surgical stapler of claim 1, wherein said anvil further comprises a second lip, and wherein said buttress material is releasably retained to said anvil by said second lip.

10. The surgical stapler of claim 1, wherein at least of portion of said buttress material is comprised of a bioabsorbable material.

11. A surgical stapler, comprising:

an anvil including a first groove; and

a buttress material, wherein said buttress material is releasably retained to said anvil by said first groove.

12. The surgical stapler of claim 11, further comprising a staple cartridge and a surgical staple removably stored within said staple cartridge, wherein said surgical staple includes a deformable member.

13. The surgical stapler of claim 12, wherein said anvil further comprises at least one pocket, wherein said anvil pocket is configured to deform said deformable member, and wherein said buttress material is located between said staple cartridge and said anvil pocket.

14. The surgical stapler of claim 12, wherein said deformable is configured to extend through said buttress material in a first direction, and wherein said deformable member is configured to engage said buttress material in a second direction after being deformed by said anvil.

15. The surgical stapler of claim 14, wherein said deformable member is configured to release said buttress material from said anvil when said deformable member engages said buttress material in said second direction.

16. The surgical stapler of claim 14, wherein said buttress material includes an aperture configured to receive said deformable member and allow said deformable member to extend therethrough in said first direction without piercing said buttress material.

17. The surgical stapler of claim 14, wherein said deformable member is configured to pierce said buttress material when said deformable member engages said buttress material in said second direction.

18. The surgical stapler of claim 14, further including a second staple removably stored within said staple cartridge, wherein said second staple includes a deformable member, wherein said deformable member of said second staple is configured to extend through said buttress material in a first direction, and wherein said deformable member of said second staple is configured to engage said buttress member in a second direction after being deformed by said anvil.

19. The surgical stapler of claim 11, wherein said anvil further comprises a second groove, and wherein said buttress material is releasably retained to said anvil by said second groove.

20. The surgical stapler of claim 11, wherein at least of portion of said buttress material is comprised of a bioabsorbable material.

21. A surgical stapler, comprising:

an anvil;

a staple cartridge configured to removably store at least one staple therein; and

a buttress material, wherein at least one of said anvil and said staple cartridge includes a retention feature configured to releasably retain said buttress material intermediate said anvil and said staple cartridge.

22. The surgical stapler of claim 21, wherein said retention feature includes a lip extending from at least one of said anvil and said staple cartridge.

23. The surgical stapler of claim 21, wherein said retention feature includes a groove in at least one of said anvil and said staple cartridge.

24. A staple cartridge for use with a surgical stapler, said staple cartridge comprising:

a cavity;

a staple removably positioned within said cavity;

a buttress material; and

at least one of a lip and a groove configured to removably retain said buttress material to said staple cartridge.