Granted Patent B2

US 10,772,629 · App. 15/634,035 · Granted Sep 15, 2020

Inventors: Frederick E. Shelton, IV (Hillsboro, OH); Anil K. Nalagatla (Mason, OH); Jerome R. Morgan (Cincinnati, OH); Gregory J. Bakos (Mason, OH); Jason L. Harris (Lebanon, OH)

Assignee: Ethicon LLC

A61B17/07207A61B17/0644A61B2017/0046A61B2017/00398A61B2017/00464A61B2017/00526A61B2017/00845A61B2017/07235A61B2017/07242A61B2017/07257A61B2017/07264A61B2017/07271A61B2017/07285A61B2017/2927

Abstract

Claims (58)

1. A surgical stapling anvil for use with a surgical instrument, wherein said surgical stapling anvil comprises:

an anvil body, comprising:

a tissue-facing surface comprising a plurality of staple-forming pockets defined therein; and

a longitudinal cavity defined therein, wherein said longitudinal cavity comprises:

a first cavity portion comprising a first width, wherein said first cavity portion is configured to receive at least a portion of a cutting edge of a firing member of the surgical instrument therethrough;

a second cavity portion comprising a second width which is greater than said first width, wherein said second cavity portion comprises a first surface comprising first angle, and wherein said second cavity portion is configured to receive an anvil-engaging portion of the firing member therethrough; and

a third cavity portion comprising a third width which is greater than said second width, wherein said third cavity portion further comprises a first angular surface comprising a second angle, wherein said second angle flares outward relative to said first angle, and wherein said first angle and said second angle are unique angles;

an anvil cap, comprising:

a first section positioned within a portion of said second cavity portion; and

a second section positioned within said third cavity portion, wherein said second section comprises a second angular surface corresponding to said first angular surface, and wherein a mated portion of said first angular surface and said second angular surface define a mated depth; and

a weld welding said first angular surface and said second angular surface together, wherein said weld comprises a weld depth.

2. The surgical stapling anvil of claim 1 , wherein said anvil cap comprises a Y-shaped cross section.

3. The surgical stapling anvil of claim 1 , wherein said weld depth is between 0.015 inches and 0.040 inches.

4. The surgical stapling anvil of claim 3 , wherein said weld depth is 0.030 inches.

5. The surgical stapling anvil of claim 1 , wherein said weld comprises a laser weld.

6. The surgical stapling anvil of claim 1 , wherein said weld depth is less than said mated depth.

7. The surgical stapling anvil of claim 1 , wherein said weld depth is greater than said mated depth.

8. A surgical stapling anvil for use with a surgical instrument, wherein said surgical stapling anvil comprises:

an anvil body, comprising:

a tissue-facing surface comprising a plurality of staple-forming pockets defined therein; and

a longitudinal cavity defined therein, wherein said longitudinal cavity comprises:

a first cavity portion comprising a first width, wherein said first cavity portion is configured to receive at least a portion of a cutting edge of a firing member of the surgical instrument therethrough;

a second cavity portion comprising a second width which is greater than said first width, wherein said second cavity portion is configured to receive an anvil-engaging portion of the firing member therethrough; and

a third cavity portion comprising a third width which is greater than said second width, wherein said third cavity portion further comprises a first angular surface which flares outward relative to said second cavity portion;

an anvil cap, comprising:

a first section positioned within a portion of said second cavity portion; and

a second section positioned within said third cavity portion, wherein said second section comprises a second angular surface corresponding to said first angular surface, and wherein a mated portion of said first angular surface and said second angular surface define a mated depth; and

a weld welding said first angular surface and said second angular surface together, wherein said weld comprises a weld depth, wherein said third cavity portion comprises a first ledge surface, wherein said second section comprises a second ledge surface corresponding to said first ledge surface, and wherein said first ledge surface and said second ledge surface are at least substantially parallel to said tissue-facing surface.

9. The surgical stapling anvil of claim 8 , wherein said weld extends into said first and second ledge surfaces.

10. A surgical stapling anvil for use with a surgical instrument, wherein said surgical stapling anvil comprises:

a first anvil member, comprising:

a tissue-facing surface comprising a plurality of staple-forming pockets defined therein; and

a longitudinal cavity, comprising:

a first cavity portion comprising a first width, wherein said first cavity portion is configured to receive at least a portion of a cutting edge of a firing member of the surgical instrument therethrough;

a second cavity portion comprising a second width which is greater than said first width, wherein said second cavity portion is configured to receive an anvil-engaging portion of the firing member therethrough; and

a third cavity portion comprising a third width which is greater than said second width;

a second anvil member, comprising:

a first section positioned within said second cavity portion, wherein said first section comprises a first surface comprising a first angle;

a second section positioned within said third cavity portion, wherein said second section comprises a fourth width which is greater than said second width, and wherein said second section comprises a second surface comprising a second angle; and

a transition surface, wherein said first surface and said second surface transition at said transition surface between said first angle and said second angle, wherein said first angle and said second angle are unique angles; and

a weld connecting said second section and said first anvil member together, wherein said weld extends at least to said transition surface.

11. The surgical stapling anvil of claim 10 , wherein said second section flares outwardly relative to said first section.

12. The surgical stapling anvil of claim 10 , wherein said second anvil member comprises a Y-shaped cross section.

13. The surgical stapling anvil of claim 10 , wherein said weld comprises a weld depth of between 0.015 inches and 0.040 inches.

14. The surgical stapling anvil of claim 10 , wherein said weld comprises a laser weld.

15. A surgical stapling anvil for use with a surgical instrument, wherein said surgical stapling anvil comprises:

a first anvil member, comprising:

a tissue-facing surface comprising a plurality of staple-forming pockets defined therein; and

a longitudinal cavity, comprising:

a first cavity portion comprising a first width, wherein said first cavity portion is configured to receive at least a portion of a cutting edge of a firing member of the surgical instrument therethrough;

a second cavity portion comprising a second width which is greater than said first width, wherein said second cavity portion is configured to receive an anvil-engaging portion of the firing member therethrough; and

a third cavity portion comprising a third width which is greater than said second width;

a second anvil member, comprising:

a first section positioned within said second cavity portion;

a second section positioned within said third cavity portion, wherein said second section comprises a fourth width which is greater than said second width; and

a transition surface, wherein said first section and said second section transition at said transition surface; and

a weld connecting said second section and said first anvil member together, wherein said weld extends at least to said transition surface, and wherein said transition surface comprises a ledge surface at least substantially parallel to said tissue-facing surface.

16. The surgical stapling anvil of claim 15 , wherein said weld extends into said ledge surface.

Assignments (2)

Cited By (78)

US 12,185,946 US 12,193,698 US 12,201,339 US 12,207,820 US 12,207,835 US 12,213,666 US 12,213,670 US 12,213,671 US 12,220,126 US 12,226,099 US 12,226,100 US 12,232,723 US 12,232,724 US 12,239,316 US 12,239,317 US 12,239,360 US 12,245,764 US 12,245,901 US 12,256,930 US 12,256,931 US 12,261,471 US 12,262,888 US 12,262,937 US 12,274,442 US 12,274,445 US 12,285,166 US 12,285,171 US 12,290,259 US 12,290,261 US 12,324,579 US 12,324,580 US 12,324,581 US 12,324,585 US 12,336,705 US 12,336,709 US 12,336,747 US 12,343,013 US 12,343,063 US 12,349,961 US 12,357,309 US 12,369,909 US 12,369,911 US 12,369,912 US 12,383,259 US 12,383,263 US 12,383,267 US 12,402,906 US 12,408,967 US 12,414,768 US 12,432,790 US 12,433,584 US 12,433,627 US 12,440,208 US 12,440,209 US 12,440,213 US 12,446,877 US 12,453,557 US 12,453,571 US 12,458,455 US 12,465,363 US 12,465,384 US 12,471,982 US 12,502,171 US 12,508,025 US 12,521,116 US 12,527,571 US 12,527,575 US 12,533,126 US 12,533,127 US 12,533,178 US 12,622,721 US 12,636,006 US 12,653,602 US 12,661,175 US 12,702,409 US 12,702,466 US 12,712,326 US 12,714,425