Three dimensional adjuncts
View Patent ↗Stapling assemblies for use with a surgical stapler and methods for manufacturing the same are provided. Three dimensional adjuncts for use with a surgical stapling assembly and methods for manufacturing the same are also provided.
1. A stapling assembly for use with a surgical stapler, comprising:
a body having a plurality of staples disposed therein, the plurality of staples being configured to be deployed into tissue, and the body having a first end, a second end, and a longitudinal axis extending therebetween; and
a three-dimensional compressible adjunct configured to be releasably retained on the body such that the adjunct can be attached to tissue by the plurality of staples in the body, the adjunct having a first component formed from a first matrix comprising at least one fused bioabsorbable polymer, and a second component formed from a second matrix comprising at least one fused bioabsorbable polymer that differs from the at least one fused bioabsorbable polymer of the first matrix, the first and second components being coupled to one another to form a composite structure, wherein the first component includes a plurality of struts that form a plurality of arrays, each array having a repeating X pattern that lies within a single common plane.
2. The stapling assembly of claim 1 , wherein the first component has a degradation rate that differs from a degradation rate of the second component.
3. The stapling assembly of claim 1 , wherein the first component is configured to bend to allow the adjunct to compress toward the body.
4. The stapling assembly of claim 1 , wherein the second component is more flexible than the first component.
5. The stapling assembly of claim 1 , wherein at least one of the first matrix and the second matrix includes at least two different fused bioabsorbable polymers.
6. The stapling assembly of claim 1 , wherein the first matrix includes at least two fused bioabsorbable polymers, and wherein a first of the at least two fused bioabsorbable polymers has a degradation rate that differs from a degradation rate of a second of the at least two fused bioabsorbable polymers.
7. The stapling assembly of claim 1 , wherein the first component has a first color and the second component has a second color that differs from the first color.
8. The stapling assembly of claim 1 , wherein the second component comprises a plurality of rods that interconnect the plurality of struts, and wherein each rod extends laterally relative to the longitudinal axis of the body.
9. The stapling assembly of claim 1 , wherein the at least one fused bioabsorbable polymer of the first component is polyglactin or polydioxanone.
10. The stapling assembly of claim 1 , wherein the at least one fused bioabsorbable polymer of the second component is a polycaprolactone copolymer.
11. The stapling assembly of claim 1 , wherein at least one of the first component and the second component is at least partially coated with a bioabsorbable polymer that is different than the at least one fused bioabsorbable polymer of the first matrix and of the second matrix.
12. The stapling assembly of claim 11 , wherein the bioabsorbable polymer has a slower degradation rate than a degradation rate of the at least one fused bioabsorbable polymer of the first matrix and of the second matrix.
13. The stapling assembly of claim 1 , wherein the adjunct is configured to apply a stress of at least about 3 g/mm 2 to the tissue stapled thereto for at least 3 days when the adjunct is in a tissue deployed state.
14. A stapling assembly for use with a surgical stapler, comprising:
a body having a plurality of staples disposed therein, the plurality of staples being configured to be deployed into tissue; and
a three-dimensional compressible adjunct configured to be releasably retained on the body such that the adjunct can be attached to tissue by the plurality of staples in the body, wherein the adjunct is a fused structure having a plurality of repeating unit cells that are interconnected at first nodes, each repeating unit cell having a plurality of struts that are interconnected at second nodes, the plurality of struts being formed of a first fused matrix, and the first and second nodes being formed of a second fused matrix that is more flexible than the first fused matrix.
15. The stapling assembly of claim 14 , wherein the first fused matrix has a degradation rate that differs from a degradation rate of the second fused matrix.
16. The stapling assembly of claim 14 , wherein at least one of the first fused matrix and the second fused matrix includes at least two different fused bioabsorbable polymers.
17. The stapling assembly of claim 14 , wherein the first fused matrix comprises at least two fused bioabsorbable polymers, and wherein a first of the at least two fused bioabsorbable polymers has a degradation rate that differs from a degradation rate of a second of the at least two fused bioabsorbable polymers.
18. The stapling assembly of claim 14 , wherein the first fused matrix comprises at least one fused bioabsorbable polymer, and wherein the at least one fused bioabsorbable polymer is polyglactin or polydioxanone.
19. The stapling assembly of claim 14 , wherein the second fused matrix comprises at least one fused bioabsorbable polymer, and wherein the at least one fused bioabsorbable polymer is a polycaprolactone copolymer.
20. The stapling assembly of claim 14 , wherein the adjunct is configured to apply a stress of at least about 3 g/mm 2 to the tissue stapled thereto for at least 3 days when the adjunct is in a tissue deployed state.