Staple Line Reinforcement For Anvil And Cartridge

• US 20110089220A1
• Filed: 10/15/2009
• Published: 04/21/2011
• Est. Priority Date: 10/15/2009
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Ingmanson, Michael D., Shah, Sachin
• Granted Patent: US 8,157,151 B2
• Time in Patent Office: Days
• US Class Current: 227/176.1
• 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 17/072 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 2017/07214 Stapler heads

Abstract

A surgical stapling apparatus including a cartridge assembly defining a first tissue contacting surface, an anvil assembly defining a second tissue contacting surface, and a surgical buttress releasably secured to at least one of the first tissue contacting surface and the second tissue contacting surface is provided. The buttress provides a uniform profile to be used on both the anvil and cartridge of a loading unit.

Claims

1. A surgical stapling apparatus, comprising:

a cartridge assembly defining a first tissue contacting surface, the cartridge assembly housing a plurality of surgical fasteners therein, the cartridge assembly defining at least one distal attachment point and at least one proximal attachment point;

an anvil assembly defining a second tissue contacting surface, the anvil assembly movably secured in relation to cartridge assembly, the anvil assembly defining at least one distal attachment point and at least one proximal attachment point, wherein the at least one proximal attachment point of the anvil assembly is offset an axial distance from the at least one proximal attachment point of the cartridge assembly; and

a surgical buttress releasably secured to each of the first tissue contacting surface and the second tissue contacting surface, the surgical buttress including a body portion configured to substantially overlie at least one of the first and second tissue contacting surfaces of either the first length and second length cartridge assembly and anvil assembly;

wherein each surgical buttress defines a distal attachment feature for registration with the distal attachment point of the cartridge assembly and the anvil assembly;

wherein each surgical buttress defines a first proximal attachment feature and a second proximal attachment feature offset an axial distance from the first proximal attachment feature;

wherein the first proximal attachment feature registers with the proximal attachment point of the cartridge assembly; and

wherein the second proximal attachment feature registers with the proximal attachment point of the anvil assembly.

2. The surgical stapling apparatus of claim 1, wherein the surgical buttress disposed against the tissue contact surface of the cartridge assembly and the surgical buttress disposed against the tissue contact surface of the anvil assembly have substantially the same length.

3. The surgical stapling apparatus of claim 1, wherein each surgical buttress has the same configuration.

4. The surgical stapling apparatus of claim 1, wherein each surgical buttress is fabricated from a biocompatible and bioabsorbable material.

5. The surgical stapling apparatus of claim 1, further comprising sutures retaining surgical buttresses against the tissue contacting surface of the cartridge assembly and the anvil assembly.

6. The surgical stapling apparatus of claim 1, further comprising a suture retaining a distal end portion of the surgical buttress against a respective one of the cartridge assembly and the anvil assembly, wherein the suture maintains the distal attachment feature of the surgical buttress in registration with the distal attachment point of the respective one of the cartridge assembly and the anvil assembly.

7. The surgical stapling apparatus of claim 1, further comprising a suture retaining a proximal end portion of the surgical buttress against a respective one of the cartridge assembly and the anvil assembly, wherein a suture maintains the first proximal attachment feature of the surgical buttress in registration with the proximal attachment point of the cartridge assembly and the anvil assembly, and wherein a suture maintains the second proximal attachment feature of the surgical buttress in registration with the proximal attachment point of the anvil assembly.

8. A surgical stapling apparatus, comprising:

a cartridge assembly defining a first tissue contacting surface, the cartridge assembly housing a plurality of surgical fasteners therein, the cartridge assembly being either a first length or a second length longer than the first length;

an anvil assembly defining a second tissue contacting surface, the anvil assembly movably secured in relation to cartridge assembly, the anvil assembly being either the first length or the second length each corresponding to the length of the cartridge assembly; and

a surgical buttress releasably secured to at least one of the first tissue contacting surface and the second tissue contacting surface, the surgical buttress including a head portion, a neck portion, and a body portion, wherein the head portion is connected to a distal end of the body portion by the neck portion, wherein the surgical buttress is configured to substantially overlie at least one of the first and second tissue contacting surfaces of either the first length and second length cartridge assembly and anvil assembly.

9. The surgical stapling apparatus of claim 8, wherein the body portion of the surgical buttress defines a recess formed in a proximal edge thereof, the recess longitudinally bisecting the proximal edge.

10. The surgical stapling apparatus of claim 9, wherein the recess is a notch having a v-shape profile.

11. The surgical stapling apparatus of claim 8, wherein the body portion of the surgical buttress defines at least one pair of opposing proximal recesses, each of the at least one pair of opposing proximal recesses is formed on an opposing lateral side of the body portion near a proximal edge of the surgical buttress.

12. The surgical stapling apparatus of claim 11, wherein the at least one pair of opposing proximal recesses is a notch having a v-shape profile.

13. The surgical stapling apparatus of claim 11, wherein the body portion of the surgical buttress further defines a pair of opposing distal recesses, each of the pair of opposing distal recesses is formed on an opposing lateral side of the body portion near a distal edge of the body portion.

14. The surgical stapling apparatus of claim 13, wherein the pair of opposing distal recesses are longitudinally tapered.

15. The surgical stapling apparatus of claim 8, wherein a distal edge of the body portion of the surgical buttress is arcuated.

16. The surgical stapling apparatus of claim 8, wherein a distal edge of the body portion of the surgical buttress has a transverse width dimension less than that of the rest of the body portion.

17. The surgical stapling apparatus of claim 8, wherein the head portion has a substantially rectangular shape.

18. The surgical stapling apparatus of claim 8, wherein each surgical buttress is fabricated from a biocompatible and bioabsorbable material.

19. A surgical buttress for use in a surgical stapling apparatus, the surgical buttress comprising:

a body portion;

a neck portion; and

a head portion connected to a distal end of the body portion by the neck portion, wherein the body portion defines at least one pair of opposing proximal recesses, each of the at least one pair of opposing proximal recesses is formed on an opposing lateral side of the body portion near a proximal edge of the body portion.

20. The surgical buttress of claim 19, wherein each of the at least one pair of opposing proximal recesses is a notch having a v-shape profile.

21. The surgical buttress of claim 19, wherein the body portion further defines a pair of opposing distal recesses, each of the pair of opposing distal recesses is formed on an opposing lateral side of the body portion near a distal edge of the body portion.

22. The surgical buttress of claim 19, wherein the body portion of the surgical buttress further defines a proximal edge recess formed in a proximal edge thereof, the proximal edge recess longitudinally bisecting the proximal edge.

23. The surgical buttress of claim 19, wherein a distal edge of the body portion of the surgical buttress is arcuated.

24. The surgical buttress of claim 19, wherein a distal edge of the body portion of the surgical buttress has a transverse width dimension less than that of the rest of the body portion.

25. The surgical buttress of claim 19, wherein the head portion has a substantially rectangular shape.

26. The surgical buttress of claim 19, wherein the surgical buttress is fabricated from a biocompatible and bioabsorbable material.

27. A surgical buttress for use with a surgical stapling apparatus having a cartridge assembly of any number of lengths and an anvil assembly of any number of lengths corresponding to the lengths of the cartridge assembly, wherein each of the cartridge assembly and anvil assembly defines respective juxtaposed tissue contacting surfaces, and wherein the cartridge assembly includes a plurality of staples stored in staple slots thereof for formation against staple formation pockets of the anvil assembly, the surgical buttress comprising:

a body portion configured and dimensioned to at least one of;

overlie all of the staple slots of the cartridge assembly for any length cartridge assembly, and

overlie all of the staple formation pockets of the anvil assembly for any length anvil assembly;

a neck portion extending from the body portion; and

a head portion connected to the neck portion and opposite a distal end of the body portion, wherein the body portion defines at least one pair of opposing proximal recesses, each of the at least one pair of opposing proximal recesses is formed on an opposing lateral side of the body portion near a proximal edge of the body portion.