Staple cartridge, staple cartridge assembly, and anastomosis device

A staple cartridge assembly, comprising a staple-pushing member and a staple cartridge, wherein the staple cartridge is provided with a feeding groove and multiple staple slot groups;

• the feeding groove is arranged to extend in a first predetermined direction, and the feeding groove is configured for a cutting knife to pass through;
• each of the staple slot groups comprises multiple staple slots distributed along the first predetermined direction, wherein the staple slots are configured for mounting anastomotic staples;
• the multiple staple slot groups are arranged at intervals in a slot-width direction of the feeding groove;
• at least one staple slot group is distributed on both sides of the feeding groove in the slot-width direction;
• and numbers of the staple slot groups on both sides of the feeding groove in the slot-width direction are different;
• wherein the staple-pushing member is configured to move relative to the staple cartridge so as to trigger the anastomotic staples in the staple slots of the staple cartridge,
• wherein the staple-pushing member is configured to move relative to the staple cartridge in the first predetermined direction;
• the staple cartridge assembly further comprises an elastic limiting unit, and the staple cartridge is provided with a mounting hole, wherein the elastic limiting unit is mounted at the mounting hole;
• the elastic limiting unit comprises an elastic force transfer structure, and a trigger part and a limiting part located at both ends of the elastic force transfer structure, wherein the trigger part and the limiting part are respectively arranged near an inner end and an outer end of the mounting hole;
• the trigger part is arranged in a pushing movement path of the staple-pushing member in the first predetermined direction;
• the elastic limiting unit is configured to produce an elastic deformation when the trigger part is pushed by the staple-pushing member so that the trigger part exits the pushing movement path;
• and the elastic force transfer structure is configured to apply an elastic driving force to the limiting part to extend towards an outer end of the mounting hole when the trigger part exits the pushing movement path.