Stapling head assembly and suturing and cutting apparatus for endoscopic surgery

A stapling head assembly comprising:

• a cartridge;
• a cartridge support detachably attached to the cartridge;
• a connecting tube including a distal end connected to a proximal end of said cartridge support;
• a cutter pushing rod movably set inside said connecting tube;
• and
• a lockout mechanism connected to said connecting tube, said lockout mechanism including:
• a pressing block used to lock a proximal end of said cutter pushing rod to prevent said cutter pushing rod from moving before said stapling head assembly is used, said pressing block being rotatable between a first position and a second position relative to said connecting tube;
• and
• a pushing block used to push said pressing block to rotate from said first position towards said second position, said pushing block located at one side of said pressing block, and movable between a third position and a fourth position relative to said connecting tube along a longitudinal direction of said connecting tube.

A suturing and cutting apparatus for endoscopic surgery comprising:

• a body;
• and
• a stapling head assembly including a cartridge, a cartridge support detachably attached to the cartridge, a connecting tube having a distal end connected to a proximal end of said cartridge support, a cutter pushing rod movably set inside said connecting tube, and a lockout mechanism connected to said connecting tube, said lockout mechanism including:
• a pressing block used to lock a proximal end of said cutter pushing rod to prevent said cutter pushing rod from moving before said stapling head assembly is used, wherein said pressing block is rotatable between a first position and a second position relative to said connecting tube;
• and
• a pushing block used to push said pressing block to rotate from said first position towards said second position, said pushing block located at one side of said pressing block and movable between a third position and a fourth position relative to said connecting tube along a longitudinal direction of said connecting tube, wherein the connecting tube and the cutter pushing rod are connected to said body.