SURGICAL STAPLES WITH DIFFERENT STIFFNESS OPTIONS FOR IMPROVED TISSUE STAPLING Russian patent published in 2020 - IPC A61B17/64 

FIELD: medical equipment.

SUBSTANCE: group of inventions relates to surgical stapling and cutting tools and cassettes with staples intended for use with them. Cartridge with surgical staples for use with a surgical stapling instrument comprises a cartridge body, a staple cavity and a staple. Staples are stored with possibility of extraction inside staples cavities. Each bracket comprises a bracket base, a pair of bracket legs, a first zone and a second zone. Pair of bracket legs extends from the bracket base. First zone has the first rigidity. Second zone has the second stiffness differing from the first stiffness. Each bracket comprises an outer curved part extending laterally and an upper curved part located between the bracket legs and the bracket base. Curved parts comprise the first zone, and the staple base contains the second zone. Surgical staple can be stored with the possibility of being removed inside the cassette with surgical staples in the non-activated configuration. Surgical staple has an uneven stiffness profile. Bracket comprises bracket base, pair of bracket legs extending from bracket base, first zone having first rigidity, and second zone having second rigidity that differs from first stiffness. Second zone is reinforced to second stiffness when bracket is in pre-loading configuration. Each bracket comprises an outer curved part extending laterally and an upper curved part located between the bracket legs and the bracket base. Curved parts comprise the first zone, and the staple base contains the second zone.

EFFECT: use of inventions provides higher control and predictability when forming staples opposite the corresponding forming pockets.

9 cl, 106 dwg