SURGICAL STAPLING DEVICE WITH TRI-STAPLES

摘要

A surgical stapling device is described having a tool assembly including an anvil assembly and a staple cartridge having a series of tri-staples which are supported and configured to be rotatably ejected from the staple cartridge into the anvil assembly to suture tissue. The manner in which the staples are supported and ejected from within the staple cartridge facilitates the use of a tool assembly of reduced diameter that includes staples capable of suturing thicker tissues than would normally be associated with tool assemblies with such a reduced diameter. A tri-staple is also described that can be ejected from the surgical stapling device. In embodiments, the tri-staple includes three legs of different lengths. Each of the legs is configured to provide a different degree of compression when applied to tissue. In addition, each of the staple legs has a D-shaped configuration when deformed.

主权项

1. A surgical stapling device comprising:
a shaft portion; a tool assembly supported on a distal end of the shaft portion, the tool assembly including an anvil assembly and a cartridge assembly, the cartridge assembly including a cartridge body defining a plurality of pockets and at least three longitudinal channels, and a plurality of staples supported with the cartridge body, each of the staples having a first leg, a second leg and a third leg, each of the first, second, and third legs being of different lengths, the first and second legs being interconnected by a backspan and the third leg being secured to the backspan, the backspan of each of the staples being rotatably supported within a respective one of the pockets; and a sled including plurality of firing cams, each of the firing cams being positioned to engage one of the first, second, or third legs of the plurality of staples, the sled being movable through the cartridge body to rotate and eject the plurality of staples from the cartridge assembly.