Curved end effector for a surgical stapling device

• US 20080169329A1
• Filed: 01/11/2007
• Published: 07/17/2008
• Est. Priority Date: 01/11/2007
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Inventors: Morgan, Jerome R., Siebenaler, Douglas J., Balek, Stephen J., Shelton, Frederick E.
• Granted Patent: US 8,701,958 B2
• Time in Patent Office: Days
• US Class Current: 227/180.1
• 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 17/07207 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 17/122 Clamps or clips , e.g. for the umbilical cord for the vas deferens A61F6/206
• CPC Class Codes: A61B 17/205 Vaccinating by means of needles or other puncturing devices
• 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 17/320016 Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes A61B10/0233, A61B17/29, A61B17/3207 take precedence
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/07221 curved
• CPC Class Codes: A61B 2017/07228 Arrangement of the staples
• 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 2017/07278 characterised by its sled or its staple holder
• CPC Class Codes: A61B 2017/2936 Pins in guiding slots
• CPC Class Codes: A61B 2017/2944 Translation of jaw members
• CPC Class Codes: A61B 2017/2945 Curved jaws
• CPC Class Codes: A61B 2017/320044 Blunt dissectors blunt suture needles A61B2017/06085
• CPC Class Codes: A61B 2017/3456 blunt
• CPC Class Codes: A61B 2090/08021 of the patient or his organs

Abstract

The present invention includes a surgical stapler having a curved end-effector which is configured to deploy staples in at least one curved staple line. In various embodiments, the surgical stapler includes a staple cartridge, an anvil, and a cutting member having a cutting surface wherein the cutting member is relatively movable with respect to the anvil and the staple cartridge. In one embodiment, the staple cartridge can be configured to deploy staples along different, non-parallel axes. As a result, the staples can be deployed in a significantly curved staple line. In various embodiments, the surgical stapler includes a flexible driver operably engaged with the cutting member to move the cutting member relative to the anvil and the staple cartridge. In these embodiments, the driver can include an elongate cross-section defined by a width and a height wherein its width is greater, and in some cases, substantially greater, than its height.

Claims

1. A surgical stapler, comprising:

a staple cartridge configured to removably store at least a first staple and a second staple; and

an anvil configured to deform said first staple and said second staple, wherein said first staple is movable between a first position and a second position, wherein said first position and said second position define a first axis, wherein said second staple is movable between a first position and a second position, wherein said first position and said second position of said second staple define a second axis, and wherein said first axis and said second axis define an angle therebetween.

2. The surgical stapler of claim 1, wherein said angle is greater than 30 degrees.

3. The surgical stapler of claim 1, wherein said first axis is substantially perpendicular to said second axis.

4. The surgical stapler of claim 1, wherein said staple cartridge includes a curved deck surface configured to contact soft tissue, and wherein said first axis and said second axis are perpendicular to said deck surface.

5. The surgical stapler of claim 1, wherein said first staple and said second staple are part of a first row of staples, and wherein said staple cartridge includes at least two additional staples which comprise a second row of staples.

6. The surgical stapler of claim 4, wherein said first row and said second row are substantially parallel.

7. The surgical stapler of claim 1, further comprising:

a cutting member having a cutting edge, wherein said cutting edge defines an axis, and wherein said cutting member is relatively movable with respect to said anvil and said staple cartridge; and

a driver operably engaged with said cutting member to move said cutting member relative to said anvil and said staple cartridge, wherein said driver has an elongate cross-section defined by a width and a height, wherein said width is greater than said height, and wherein said width defines an axis that is not parallel to said cutting edge axis.

8. The surgical stapler of claim 7, wherein said driver is comprised of at least two materials bonded together.

9. The surgical stapler of claim 7, wherein said axis defined by said width is perpendicular to said cutting edge axis.

10. A method for processing an instrument for surgery, comprising:

obtaining the surgical stapler of claim 1;

sterilizing said surgical stapler; and

storing said surgical stapler in a sterile container.

11. A surgical stapler for stapling tissue, comprising:

a channel configured to receive a staple cartridge, the staple cartridge configured to removably store staples therein, the staple cartridge having a first surface defined by a first radius of curvature;

an anvil configured to deform said staples, said anvil having a second surface defined by a second radius of curvature, wherein said first surface and said second surface are configured to releasably hold said tissue therebetween when said first surface and said second surface are placed in close opposition to each other;

a cutting member having a cutting edge, wherein said cutting edge defines an axis, and wherein said cutting member is relatively movable with respect to said anvil and the staple cartridge; and

a driver operably engaged with said cutting member to move said cutting member relative to said anvil and the staple cartridge, wherein said driver has an elongate cross-section defined by a width and a height, wherein said width is greater than said height, and wherein said width defines an axis that is not parallel to said cutting edge axis.

12. The surgical stapler of claim 11, further comprising said staple cartridge.

13. The surgical stapler of claim 11, wherein said axis defined by said width is perpendicular to said cutting edge axis.

14. The surgical stapler of claim 11, wherein one of said anvil and the staple cartridge defines at least one slot configured to receive a portion of said driver and support said driver when it moves said cutting member relative to said anvil and the staple cartridge.

15. The surgical stapler of claim 11, wherein said staples include at least a first staple and a second staple, wherein said first staple is movable between a first position and a second position, wherein said first position and said second position define a first axis, wherein said second staple is movable between a first position and a second position, wherein said first position and said second position of said second staple define a second axis, and wherein said first axis and said second axis define an angle therebetween.

16. The surgical stapler of claim 15, wherein said angle is greater than 30 degrees.

17. A surgical stapler, comprising:

a channel configured to receive a staple cartridge, the staple cartridge configured to removably store staples therein;

an anvil configured to deform said staples;

a cutting member having a cutting edge, wherein said cutting edge defines an axis, and wherein said cutting member is relatively movable with respect to said anvil and the staple cartridge; and

a drive bar operably engaged with said cutting member to move said cutting member relative to said anvil and the staple cartridge, said drive bar having a cross-section, said cross-section defining a first moment of inertia with respect to said cutting edge axis and a second moment of inertia with respect to an axis perpendicular to said cutting edge axis, wherein said first moment of inertia is greater than said second moment of inertia.

18. The surgical stapler of claim 17, wherein one of said anvil and the staple cartridge defines at least one slot configured to receive a portion of said drive bar and support said drive bar when it moves said cutting member relative to said anvil and the staple cartridge.

19. The surgical stapler of claim 17, wherein said staples include at least a first staple and a second staple, wherein said first staple is movable between a first position and a second position, wherein said first position and said second position define a first axis, wherein said second staple is movable between a first position and a second position, wherein said first position and said second position of said second staple define a second axis, and wherein said first axis and said second axis define an angle therebetween.

20. The surgical stapler of claim 18, wherein said angle is greater than 30 degrees.