Compressible non-fibrous adjuncts
Stapling assemblies for use with a surgical stapler are provided. In one exemplary embodiment, the stapling assembly includes a cartridge having a plurality of staples disposed therein and a non-fibrous adjunct formed of at least one fused bioabsorbable polymer and configured to be releasably retained on the cartridge. Adjunct systems for use with a surgical stapler are also provided. Surgical end effectors using the stapling assemblies are also provided. Methods for manufacturing stapling assemblies and using the same are also provided.
1. An adjunct system for a surgical stapler, the system comprising:
a first adjunct configured to be releasably retained on a first staple cartridge, the first adjunct formed of a first plurality of repeating interconnected unit cells such that the first adjunct, while under an applied stress in a range of 30 kPa to 90 kPa, undergoes a strain in a first range; and
a second adjunct that is different than the first adjunct and configured to be releasably retained on a second staple cartridge, the second adjunct formed of a second plurality of repeating interconnected unit cells such that the second adjunct while under an applied stress in a range of 30 kPa to 90 kPa, undergoes a strain in a second range;
wherein at least a portion of the first range overlaps with the second range, and wherein a combined range of the first and second ranges is from at least 0.1 to 0.9.
2. The system of claim 1 , wherein the combined range of the first and second ranges is from at least 0.1 to 0.7.
3. The system of claim 1 , wherein the first plurality of repeating interconnected unit cells are formed of a first material and the second plurality of repeating interconnected unit cells are formed of a second material that is different than the first material.
4. The system of claim 1 , wherein each unit of the first plurality of repeating interconnected unit cells has a first geometry, and wherein each unit cell of the second plurality of repeating interconnected unit cells has a second geometry that is different than the first geometry.
5. The system of claim 1 , wherein at least one of the first plurality of repeating interconnected unit cells and the second plurality of repeating interconnected unit cells comprise a triply periodic minimal surface structure.
6. The system of claim 1 , wherein at least one of the first plurality of repeating interconnected unit cells and the second plurality of repeating interconnected unit cells comprise a Schwarz-P structure.
7. The system of claim 1 , wherein each unit cell of the first plurality of repeating interconnected unit cells is a first Schwarz-P structure, and each unit cell of the second plurality of interconnected unit cells is a second Schwarz-P structure that is different than the first Schwarz-P structure.
8. The system of claim 1 , wherein each unit cell of the first plurality of repeating interconnected unit cells include
a first top portion formed from a first plurality of struts defining a first plurality of openings therebetween,
a first bottom portion formed from a second plurality of struts defining a second plurality of openings therebetween, and
first spacer struts that interconnect the first top portion and the first bottom portion.
9. The system of claim 8 , wherein the second plurality of repeating interconnected unit cells comprises a Schwarz-P structure.
10. The system of claim 8 , wherein each unit cell of the second plurality of repeating interconnected unit cells include
a second top portion formed from a third plurality of struts defining a third plurality of openings therebetween,
a second bottom portion formed from a fourth plurality of struts defining a fourth plurality of openings therebetween, and
second spacer struts that interconnect the second top portion and the second bottom portion.
11. The system of claim 1 , wherein the first adjunct is formed of a first bioabsorbable polymer and the second adjunct is formed of a second bioabsorbable polymer.
12. The system of claim 11 , wherein the first and second bioabsorbable polymers each comprise polylactide (PLA), polycaprolactone (PCL), polyglycolide (PGL), polydioxanone (PDO), polytrimethylene carbonate (PTMC), polyethylene glycol (PEG), polyethylene diglycolate (PEDG), polypropylene fumarate (PPF), poly(ethoxyethylene diglycolate), a poly(ether ester) (PEE), a poly(amino acid), a copolymer thereof, or any combination thereof.
13. The system of claim 11 , wherein at least one of the first and second bioabsorbable polymers is formed from a light polymerization resin.
14. The system of claim 13 , wherein the light polymerization resin comprises:
a (meth)acrylate terminated bioresorbable polyester oligomer present in an amount from 5% to 90% by weight of the resin;
one or more non-reactive diluents present in an amount from 1% to 70% by weight of the resin; and
one or more photoinitiators present in an amount from 0.1% to 4% by weight of the resin.
15. The system of claim 14 , wherein the light polymerization resin further comprises one or more reactive diluents present in an amount from 1% to 50% by weight of the resin.
16. The system of claim 14 , wherein the light polymerization resin further comprises one or more fillers present in an amount from 1% to 50% by weight of the resin.
17. The system of claim 14 , wherein the light polymerization resin further comprises one or more additional cross-linking agents present in an amount of from 1% to 10% by weight of the resin.
18. The system of claim 1 , wherein the first and second adjuncts each has an average length from 20 mm to 100 mm.
19. The system of claim 1 , wherein the first and second adjunct each has an average width from 5 mm to 10 mm.
20. The system of claim 1 , wherein the first and second adjuncts each has an average thickness from 1 mm to 8 mm.
21. The system of claim 1 , wherein at least one of the first and second adjuncts includes a frangible tag formed during manufacturing thereof, the tag having a unique identifier.