Buttress attachment to degradable polymer zones

• US 9,351,732 B2
• Filed: 08/15/2012
• Issued: 05/31/2016
• Est. Priority Date: 12/14/2011
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Hodgkinson, Gerald N.
• Primary Examiner(s): Tecco, Andrew M
• Assistant Examiner(s): Stinson, Chelsea
• Application Number:
  US13/586,261
• Publication Number:
  US 20130153640A1
• Time in Patent Office: 1,385 Days
• Field of Search: 227/175.1, 227/176.1, 227/180.1, 227/181.1, 606/151, 606/153, 606/139, 606/215
• US Class Current: 1/1
• 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 17/1155 Circular staplers comprising a plurality of staples
• CPC Class Codes: A61B 2017/00004 (bio)absorbable, (bio)resorbable or resorptive
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/00831 Material properties

Abstract

An end effector assembly for use with a surgical stapler, the end effector comprises a staple cartridge assembly having a tissue contacting surface and an anvil assembly having a tissue contacting surface. A surgical buttress configured and dimensioned to substantially overlie at least a portion of the tissue contacting surface of at least one of the staple cartridge assembly and anvil assembly. A plurality of attachment pads secured to at least one of the tissue contacting surface of the at least one staple cartridge assembly and anvil assembly configured to retain the respective buttress material thereto, wherein the surgical buttress is ultrasonically welded to each of the plurality of attachment pads.

Claims

1. An end effector assembly for use with a surgical stapler, the end effector comprising:

a staple cartridge assembly having a tissue contacting surface including a plurality of staple retaining pockets;

an anvil assembly having a tissue contacting surface including a plurality of staple forming pockets;

a surgical buttress configured and dimensioned to substantially overlie at least a portion of the tissue contacting surface of at least one of the staple cartridge assembly or the anvil assembly; and

a plurality of attachment pads secured to the tissue contacting surface of the at least one of the staple cartridge assembly or the anvil assembly, the plurality of attachment pads configured to retain the respective surgical buttress thereto, at least one attachment pad of the plurality of attachment pads placed into one staple retaining pocket of the plurality of staple retaining pockets of the staple cartridge assembly or one staple forming pocket of the plurality of staple forming pockets of the anvil assembly,

wherein the surgical buttress is ultrasonically welded to each attachment pad of the plurality of attachment pads.

2. The end effector assembly of claim 1, wherein at least one attachment pad of the plurality of attachment pads is made from a material selected from the group comprising glycolide, trimethylene carbonate, lactide, caprolactone, and combinations thereof.

3. The end effector assembly of claim 1, wherein each of the staple cartridge assembly and the anvil assembly has a central longitudinally extending slot configured to enable passage of a knife blade therethrough.

4. The end effector assembly of claim 3, wherein the central longitudinally extending slot of each of the staple cartridge assembly and the anvil assembly has a distal end, and each of the staple cartridge assembly and the anvil assembly has a first longitudinally extending outer edge and a second longitudinally extending outer edge, and wherein at least one attachment pad of the plurality of attachment pads is positioned between the first longitudinally extending outer edge and the distal end of the central longitudinally extending slot of the staple cartridge assembly or the anvil assembly.

5. The end effector assembly of claim 4, wherein the central longitudinally extending slot of each of the staple cartridge assembly and the anvil assembly has a proximal end, and wherein at least one attachment pad of the plurality of attachment pads is positioned between the first longitudinally extending outer edge and the proximal end of the centrally longitudinally extending slot of the staple cartridge assembly or the anvil assembly.

6. The end effector assembly of claim 1, wherein the staple cartridge assembly, the anvil assembly and the surgical buttress are substantially circular, and wherein the surgical buttress includes an inner portion, an outer portion, and a middle portion extending between the inner portion and the outer portion, and at least one attachment pad of the plurality of attachment pads is secured along the middle portion.

7. A staple cartridge for use with a surgical stapling apparatus, the staple cartridge comprising:

a cartridge body including a tissue contacting surface defining a plurality of staple retaining slots;

a staple disposed within each staple retaining slot of the cartridge body;

a surgical buttress configured and dimensioned to substantially overlie at least a portion of the staple retaining slots of the cartridge body; and

a plurality of attachment pads secured to the tissue contacting surface of the cartridge body and configured to retain the surgical buttress thereto, at least one attachment pad of the plurality of attachment pads placed into one staple retaining slot of the plurality of staple retaining slots of the cartridge body,

wherein the surgical buttress is ultrasonically welded to each attachment pad of the plurality of attachment pads.

8. The staple cartridge of claim 7, wherein at least one attachment pad of the attachment pads is made from a material selected from the group comprising glycolide, trimethylene carbonate, lactide, caprolactone, and combinations thereof.

9. The staple cartridge of claim 8, wherein the cartridge body has a central longitudinally extending slot configured to enable passage of a knife blade therethrough.

10. The staple cartridge of claim 9, wherein the central longitudinally extending slot of the cartridge body has a distal end and the cartridge body has a first longitudinally extending outer edge and a second longitudinally extending outer edge, and wherein at least one attachment pad of the plurality of attachment pads is positioned between the first longitudinally extending outer edge of the cartridge body and the distal end of the central longitudinally extending slot.

11. The staple cartridge of claim 10, wherein the central longitudinally extending slot of the cartridge body has a proximal end, and wherein at least one attachment pad of the plurality of attachment pads is positioned between the first longitudinally extending outer edge of the cartridge body and the proximal end of the central longitudinally extending slot.

12. The staple cartridge of claim 8, wherein the cartridge body and the surgical buttress are substantially circular, and wherein the surgical buttress includes an inner portion, an outer portion, and a middle portion extending between the inner portion and the outer portion, and at least one attachment pad of the plurality of attachment pads is secured along the middle portion.

13. A surgical stapling apparatus, comprising:

a housing;

an end effector being secured to the housing and including a staple cartridge assembly having a tissue contacting surface including a plurality of staple retaining pockets and an anvil assembly having a tissue contacting surface including a plurality of staple forming pockets;

a surgical buttress configured and dimensioned to substantially overlie at least a portion of the tissue contacting surface of at least one of the staple cartridge assembly or anvil assembly; and

a plurality of attachment pads secured to the tissue contacting surface of the at least one of the staple cartridge assembly or the anvil assembly, the plurality of attachment pads configured to retain the respective surgical buttress thereto, at least one attachment pad of the plurality of attachment pads placed into one staple retaining pocket of the plurality of staple retaining pockets of the staple cartridge assembly or one staple forming pocket of the plurality of staple forming pockets of the anvil assembly,

wherein the surgical buttress is ultrasonically welded to each attachment pad of the plurality of attachment pads.

14. The surgical stapling apparatus of claim 13, wherein at least one attachment pad of the plurality of attachment pads is made from a material selected from the group comprising glycolide, trimethylene carbonate, lactide, caprolactone, and combinations thereof.

15. The surgical stapling apparatus of claim 13, wherein each of the staple cartridge assembly and the anvil assembly has a central longitudinally extending slot configured to enable passage of a knife blade therethrough.

16. The surgical stapling apparatus of claim 15, wherein the central longitudinally extending slot of each of the staple cartridge assembly and the anvil assembly has a distal end, and each of the staple cartridge assembly and the anvil assembly has a first longitudinally extending outer edge and a second longitudinally extending outer edge, and wherein at least one attachment pad of the plurality of attachment pads is positioned between the first longitudinally extending outer edge and the distal end of the central longitudinally extending slot of the staple cartridge assembly or the anvil assembly.

17. The surgical stapling apparatus of claim 16, wherein the central longitudinally extending slot of each of the staple cartridge assembly and the anvil assembly has a proximal end, and wherein at least one attachment pad of the plurality of attachment pads is positioned between the first longitudinally extending outer edge and the proximal end of the centrally longitudinally extending slot of the staple cartridge assembly or the anvil assembly.

18. The surgical stapling apparatus of claim 13, wherein the staple cartridge assembly, the anvil assembly, and the surgical buttress are substantially circular, and wherein the surgical buttress includes an inner portion, an outer portion, and a middle portion extending between the inner portion and the outer portion, and at least one attachment pad of the plurality of attachment pads is secured along the middle portion.