US 11,849,950 B2
Compressible adjuncts with drug dosage control features
Frederick E. Shelton, IV, Hillsboro, OH (US); and Michael J. Vendely, Lebanon, OH (US)
Assigned to Cilag GmbH International, Zug (CH)
Filed by Cilag GmbH International, Zug (CH)
Filed on Mar. 30, 2021, as Appl. No. 17/216,985.
Prior Publication US 2022/0313258 A1, Oct. 6, 2022
Int. Cl. A61B 17/072 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/07292 (2013.01) [A61B 2017/00004 (2013.01); A61B 2017/07257 (2013.01); A61B 2017/07271 (2013.01); A61B 2017/07285 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A compressible adjunct for use with a staple cartridge, the compressible adjunct comprising:
a non-fibrous adjunct material formed of at least one fused bioabsorbable polymer and configured to be releasably retained on a staple cartridge and configured to be delivered to tissue by deployment of staples in the cartridge, the adjunct material comprising a lattice macrostructure having primary and secondary microreservoirs formed in the lattice macrostructure, wherein the primary microreservoirs and secondary microreservoirs are different in size relative to each other and contain drug disposed therein, wherein the primary microreservoirs are configured to release drug therefrom upon activation and the secondary microreservoirs are configured to release drug therefrom upon degradation of at least one of the at least one fused bioabsorbable polymer so that the combination of the primary and secondary microreservoirs control the dosage of drug being released from the adjunct material when the adjunct material is in a tissue deployed state;
wherein the lattice macrostructure comprises a plurality of hollow struts, and wherein each hollow strut defines a respective secondary microreservoir of the plurality of second microreservoirs.