LOW INHERENT VISCOSITY BIOABSORBABLE POLYMER ADHESIVE FOR RELEASABLY ATTACHING A STAPLE BUTTRESS TO A SURGICAL STAPLER
First Claim
1. A surgical stapler end effector, the end effector comprising:
- (a) a staple cartridge, wherein the staple cartridge comprises;
(i) a plurality of staples, and(ii) a deck, wherein the staple cartridge is operable to drive the staples through the deck;
(b) an anvil, wherein the anvil is movable from an open position toward the staple cartridge to reach a closed position, wherein the anvil includes an underside having staple forming surface configured to receive staples driven through the deck; and
(c) a buttress assembly, wherein the buttress assembly comprises;
(i) a buttress body, and(ii) an adhesive material, wherein the adhesive material is configured to removably secure the buttress body to the deck of the staple cartridge or the underside of the anvil, wherein the adhesive material comprises a polymer, wherein the polymer is bioabsorbable, wherein the polymer has an inherent viscosity at or below 3.0 dL/g.
3 Assignments
0 Petitions
Accused Products
Abstract
A surgical stapler end effector comprises a staple cartridge, an anvil, and a buttress assembly. The staple cartridge comprises a plurality of staples and a deck. The staple cartridge is operable to drive the staples through the deck. The anvil is movable from an open position toward the staple cartridge to reach a closed position. The anvil includes an underside having staple forming surface configured to receive staples driven through the deck. The buttress assembly comprises a buttress body and an adhesive material. The adhesive material comprises a polymer. The polymer is bioabsorbable. The polymer has an inherent viscosity at or below 3.0 dL/g.
381 Citations
20 Claims
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1. A surgical stapler end effector, the end effector comprising:
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(a) a staple cartridge, wherein the staple cartridge comprises; (i) a plurality of staples, and (ii) a deck, wherein the staple cartridge is operable to drive the staples through the deck; (b) an anvil, wherein the anvil is movable from an open position toward the staple cartridge to reach a closed position, wherein the anvil includes an underside having staple forming surface configured to receive staples driven through the deck; and (c) a buttress assembly, wherein the buttress assembly comprises; (i) a buttress body, and (ii) an adhesive material, wherein the adhesive material is configured to removably secure the buttress body to the deck of the staple cartridge or the underside of the anvil, wherein the adhesive material comprises a polymer, wherein the polymer is bioabsorbable, wherein the polymer has an inherent viscosity at or below 3.0 dL/g. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A surgical stapler end effector, the end effector comprising:
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(a) a staple cartridge, wherein the staple cartridge comprises; (i) a plurality of staples, and (ii) a deck, wherein the staple cartridge is operable to drive the staples through the deck; (b) an anvil, wherein the anvil is movable from an open position toward the staple cartridge to reach a closed position, wherein the anvil includes an underside having staple forming surface configured to receive staples driven through the deck; and (c) a buttress assembly, wherein the buttress assembly comprises; (i) a buttress body, and (ii) an adhesive material, wherein the adhesive material is configured to removably secure the buttress body to the deck of the staple cartridge or the underside of the anvil, wherein the adhesive material comprises a polymer, wherein the polymer is bioabsorbable, wherein the polymer comprises a composition selected from the group consisting of; (A) caprolactone and glycolide (PCL/PGA), (B) propanediol and caprolactone (PDO/PCL), (C) a combination of propanediol, caprolactone, and trimethylene carbonate (PDO/PCL/TMC), (D) a homopolymer poly(TMC), (E) lactide and caprolactone (PLA/PCL), (F) lactide and trimethylene carbonate (PLA/TMC), and (G) trimethylene carbonate and caprolactone (TMC/PCL).
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20. A surgical stapler end effector, the end effector comprising:
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(a) a staple cartridge, wherein the staple cartridge comprises; (i) a plurality of staples, and (ii) a deck, wherein the staple cartridge is operable to drive the staples through the deck; (b) an anvil, wherein the anvil is movable from an open position toward the staple cartridge to reach a closed position, wherein the anvil includes an underside having staple forming surface configured to receive staples driven through the deck; and (c) a buttress assembly, wherein the buttress assembly comprises; (i) a buttress body, and (ii) an adhesive material, wherein the adhesive material is configured to removably secure the buttress body to the deck of the staple cartridge or the underside of the anvil, wherein the adhesive material comprises a polymer, wherein the polymer is bioabsorbable, wherein the polymer has an inherent viscosity in the range of 1.0 dL/g to 2.0 dL/g, wherein the polymer has a molecular weight less than 200,000 g/mol.
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Specification