Buttress Attachment to Degradable Polymer Zones

• US 20130153640A1
• Filed: 08/15/2012
• Published: 06/20/2013
• Est. Priority Date: 12/14/2011
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Hodgkinson, Gerald N.
• Granted Patent: US 9,351,732 B2
• Time in Patent Office: Days
• US Class Current: 227/180.1
• 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, resorptive for implantable prostheses A61F2210/0004
• 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;

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; and

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.

2. The end effector assembly of claim 1, wherein at least one of the 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 2, wherein at least one of the attachment pads is placed into a recess of at least one of the tissue contacting surface of the staple cartridge assembly and anvil assembly.

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

5. The surgical stapling apparatus of claim 4, wherein at least one attachment pad is positioned near the central longitudinally extending slot.

6. The end effector assembly of claim 5, wherein each of the staple cartridge assembly and anvil assembly have a distal end such that at least one distal attachment pad is positioned between a first outer edge of each of the staple cartridge assembly and anvil assembly and a distal end of the central longitudinally extending slot.

7. The end effector assembly of claim 6, wherein each of the staple cartridge assembly and anvil assembly have a proximal end such that at least one proximal attachment pad is positioned between a first outer edge of each of the staple cartridge assembly and anvil assembly and a proximal end of the central longitudinally extending slot.

8. The end effector assembly of claim 3, wherein the staple cartridge assembly, the anvil assembly and the surgical buttress are substantially circular, wherein the circular buttress includes an inner portion, an outer portion, and a middle portion extending between the inner portion and the outer portion, and at least on attachment pad secured along the middle portion.

9. 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 configured to retain the respective buttress material thereto,

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

10. The staple cartridge of claim 9, wherein at least one of the attachment pads is made from a material selected from the group comprising glycolide, trimethylene carbonate, lactide, caprolactone, and combinations thereof

11. The staple cartridge of claim 10, wherein the cartridge body has a central longitudinally extending slot configured to enable passage of a knife blade therethrough.

12. The staple cartridge of claim 11, wherein at least one attachment pad of the cartridge body is positioned near the central longitudinally extending slot.

13. The staple cartridge of claim 12, wherein the staple cartridge has a distal end such that at least one distal attachment pad is positioned between a first outer edge of the staple cartridge and a distal end of the central longitudinally extending slot.

14. The staple cartridge of claim 13, wherein the staple cartridge has a proximal end such that at least one proximal attachment pad is positioned between a first outer edge of the staple cartridge and a proximal end of the central longitudinally extending slot.

15. The staple cartridge of claim 10, wherein the staple cartridge and the surgical buttress are substantially circular, wherein the circular 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 on attachment pad secured along the middle portion.

16. A surgical stapling apparatus, comprising:

a housing;

an end effector being secured to the housing and 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; and

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.

17. The surgical stapling apparatus of claim 16, wherein the plurality of attachment pads are disposed within recesses along at least one of the tissue contacting surfaces of the staple cartridge assembly and anvil assembly.

18. The surgical stapling apparatus of claim 17, wherein at least one of the attachment pads is made from a material selected from the group comprising glycolide, trimethylene carbonate, lactide, caprolactone, and combinations thereof.

19. The surgical stapling apparatus of claim 18, wherein the surgical buttress is ultrasonically welded to each of the plurality of attachment pads.