A kind of nail anvil of surgical instrument and surgical instrument

Abstract

The invention relates to the technical field of medical instruments, and discloses a nail anvil and a surgical instrument. The nail anvil includes a nail anvil cap and a nail anvil rod. The nail anvil cap is provided with a connecting body, and a pivot shaft passes between the nail anvil rod and the connecting body. The nail anvil rod is provided with a first magnetic part, and the nail anvil cap is provided with a second magnetic part which can magnetically cooperate with the first magnetic part to lock the nail anvil cap in the sutureable station. When the nail anvil cap is in the sutureable station, the second magnetic part provided on the nail anvil cap magnetically cooperates with the first magnetic part provided on the nail anvil rod to lock the relative positional relationship between the nail anvil cap and the nail anvil rod , only by providing an external force to break the relative balance between the first magnetic part and the second magnetic part, the locking between the nail anvil cap and the nail anvil rod can be released, so that the nail anvil cap can rotate relative to the nail anvil rod around the pivot axis flip. The above-mentioned nail anvil has a simple structure, and can realize the inversion between the nail anvil cap and the nail anvil rod.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an anvil of a surgical instrument and the surgical instrument. Background technique [0002] When performing surgical operations on tissues such as the esophagus, stomach, and intestinal tract, surgical instruments such as staplers are often used. Staplers can shorten operation time and improve operation efficiency. [0003] Moreover, the stapler adopts the axial inward suturing method during the operation, forming a suture ring inside the two sections of tissue, which can make the body bleeding generated during the operation be discharged together with the contents, and the body tissue is easier to heal after the operation, and In order to reduce the damage to the sewing ring when the anvil of the stapler is taken out, the anvil is mostly designed as a reversible anvil. [0004] The reversible anvil comprises an anvil bar and an anvil cap, the anvil cap is provided ...

AI Technical Summary

Problems solved by technology

[0005] However, in the prior art, the locking mechanism and matching mechanism that control the turning between the anvil cap and the anvil rod of the anvil include an anvil, a support shrapnel, a spring, an annular pusher that is arranged on the stapler to push the anvil, etc. Mechanical mechanism, resulting in a more complicated structure of the nail anvil

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