Surgical apparatus including surgical buttress

• US 9,974,542 B2
• Filed: 09/02/2016
• Issued: 05/22/2018
• Est. Priority Date: 01/23/2013
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Hodgkinson, Gerald N.
• Primary Examiner(s): Smith, Scott A.
• Application Number:
  US15/255,455
• Publication Number:
  US 20160367253A1
• Time in Patent Office: 627 Days
• Field of Search: 227 19, 2271751, 2271761, 2271752, 2271801, 606139, 606143, 606151, 606153, 606219
• 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 17/072 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 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: B29C 65/02 by heating, with or without pressure
• CPC Class Codes: B29C 65/70 by moulding using a particular moulding technique, see the relevant technique , e.g. by injection B29C45/14467
• CPC Class Codes: B29K 2995/006 Bio-degradable, e.g. bioabsorbable, bioresorbable or bioerodible
• CPC Class Codes: B29L 2031/7546 Surgical equipment

Abstract

A surgical stapling apparatus includes a housing, an end effector, fasteners, and one or more surgical buttresses. The end effector is secured to the housing and has first and second jaw assemblies. The first jaw assembly defines slots and the second jaw assembly defines pockets. One or both of the first and second jaw assemblies define recesses. The fasteners are disposed in the slots of the first jaw assembly and are formed by the pockets of the second jaw assembly. The one or more surgical buttresses have a body that includes plugs that are integrally formed with the body for insertion into the recesses to secure the surgical buttress(es) to one or both of the first and second jaw assemblies. The body substantially overlies at least some of the slots of the first jaw assembly and/or at least some of the pockets of the second jaw assembly.

Claims

1. A method of mounting a surgical buttress to an end effector for a surgical stapling apparatus, the method comprising:

providing an end effector for a surgical stapling apparatus, the end effector including a first jaw assembly defining a plurality of fastener retaining slots and a second jaw assembly defining a plurality of fastener forming pockets, at least one of the first and second jaw assemblies defining a plurality of recesses;

providing a surgical buttress formed of a first material;

providing a second material on the surgical buttress at predetermined locations on the surgical buttress;

placing the surgical buttress against a tissue contacting surface of one of the first jaw assembly or the second jaw assembly;

exposing the surgical buttress to heat and pressure to move the second material into the plurality of recesses; and

removing the heat and pressure to interlock the second material within the plurality of recesses to secure the surgical buttress on at least one of the first jaw assembly or the second jaw assembly.

2. The method of claim 1, wherein the step of exposing the surgical buttress to heat and pressure results in a forming of the second material into a plurality of plugs integrally extending from the surgical buttress and that interlock within the plurality of recesses to secure the surgical buttress on at least one of the first jaw assembly or the second jaw assembly.

3. The method of claim 2, further including supporting a cartridge defining the retaining slots within the first jaw assembly and positioning the surgical buttress on a tissue contacting surface of the cartridge, wherein each of the plurality of plugs is configured and dimensioned to facilitate the release of the at least one surgical buttress from the cartridge upon a firing of the surgical stapling apparatus.

4. The method of claim 1, further including selecting the first material from a non-woven material.

5. The method of claim 1, further including selecting the second material from the group consisting of polyglytone 6211, glycolide, caprolactone, trimethylene carbonate, lactide and combinations thereof.

6. The method of claim 1, further including selecting the second material from a material having a melting temperature below a melting temperature of the first material.

7. The method of claim 6, wherein selecting the second material from a material having a melting temperature of between about 120 degrees Celsius and about 150 degrees Celsius, and further including selecting the first material from a material having a melting temperature of between about 180 degrees Celsius to about 225 degrees Celsius.

8. The method of claim 7, wherein exposing the surgical buttress to heat and pressure results in melting of the second material without melting of the first material.

9. A method of mounting a surgical buttress to an end effector for a surgical stapling apparatus comprising:

placing a surgical buttress against at least one of a tissue contacting surface of a first jaw assembly or a second jaw assembly of an end effector for a surgical stapling apparatus, the first jaw assembly defining a plurality of fastener retaining slots and the second jaw assembly defining a plurality of fastener former pockets, at least one of the first or second jaw assemblies defining a plurality of recesses therein, wherein the surgical buttress is formed of a first material and includes a second material disposed at predetermined locations on thereon, wherein the second material of the surgical buttress overlies the plurality of recesses of the first or second jaw assembly;

exposing the surgical buttress to heat and pressure to move the second material into the plurality of recesses; and

removing the heat and pressure to interlock the second material within the plurality of recesses to secure the surgical buttress on at least one of the first jaw assembly or the second jaw assembly.

10. The method of claim 9, further including forming the first material from a non-woven material.

11. The method of claim 9, further including selecting the second material from the group consisting of polyglytone 6211, glycolide, caprolactone, trimethylene carbonate, lactide and combinations thereof.

12. The method of claim 9, further including selecting the second material from a material having a melting temperature below a melting temperature of the first material.

13. The method of claim 12, wherein selecting the second material from a material having a melting temperature of between about 120 degrees Celsius and about 150 degrees Celsius, and further including selecting the first material from a material having a melting temperature of between about 180 degrees Celsius to about 225 degrees Celsius.

14. The method of claim 13, wherein exposing the surgical buttress to heat and pressure results in melting of the second material without melting of the first material.

15. The method of claim 9, wherein exposing the surgical buttress to heat and pressure results in a forming of the second material into a plurality of plugs integrally extending from the surgical buttress and that interlock within the plurality of recesses to secure the surgical buttress on at least one of the first jaw assembly or the second jaw assembly.

16. The method of claim 15, further includes supporting a cartridge defining the retaining slots within the first jaw assembly and positioning the surgical buttress on a tissue contacting surface of the cartridge, wherein each of the plurality of plugs is configured and dimensioned to facilitate the release of the at least one surgical buttress from the cartridge upon a firing of the surgical stapling apparatus.