The staple cartridge assembly of the surgical linear cutting stapler

Abstract

A staple cartridge assembly of a surgical linear cutting anastomat can realize the technical effect that a U-shaped fork is arranged at a far-end of a push rod in the staple cartridge assembly, a U-shaped groove is formed in a slant wedge of a push nail, the longitudinal length of the U-shaped groove in the slant wedge of the push nail is larger than that of the U-shaped fork at the far-end of the push rod, an elastic lug is arranged on the side surface of a staple cartridge cover, a waist-shaped positioning hole is formed in a staple cartridge frame, an elastic hook is arranged at the bottom of the staple cartridge frame, and when the end of the staple cartridge is arranged in the staple cartridge frame, or when the staple cartridge assembly, or when a staple anvil is not closely clamped by a clamping hook, or after a percussion mechanism has acted, the percussion mechanism can be stopped, so that the use of the surgical linear cutting anastomat can be more safe; a key-hole-shaped lug is formed at the middle part of the slant wedge of the push nail in the staple cartridge assembly, a coving plate is arranged on the surface of the key-hole-shaped lug of the slant wedge of the push nail, an inclined plane is arranged at the bottom of the coving plate, and a key-hole-shaped hole is formed on a cutter can be realized, so that the technical effect that the cutter is small in shape and simple can be realized; and accordingly, a more harder material can be used for manufacturing a more sharp cutter used on the surgical linear cutting anastomat.

Description

technical field [0001] The invention relates to a nail cartridge assembly in various surgical linear cutting staplers. Background technique [0002] Various surgical linear cutting staplers are used to replace the manual anastomosis operation with needles and threads in surgery, and are being widely used in the end-to-end, end-to-side and side-to-side of organs and tissues such as human digestive tract organs, respiratory tract organs, and urogenital organs. Anastomosis and other operations, such as forming organ channels and closing incisions, are especially suitable for anastomosis of organs and tissues that are difficult to expose and operate, which can reduce operation time and improve operation quality. [0003] As introduced in US Patent Publications 20080116244 and 20090308909: various known surgical linear cutting staplers are composed of a staple cartridge assembly, an anvil assembly and a clamping hook. The staple cartridge assembly includes a staple cartridge, a ...

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