Medical clamp and processing method thereof

Abstract

The invention discloses a medical clamp and a processing method thereof. The medical clamp comprises a clamp head, a jaw and soldering flux, wherein the clamp head is made of a medium-low hardness stainless steel material; the jaw is made of a higher hardness stainless steel material; the soldering flux is used for splicing the clamp head and the jaw; and when the clamp head and the jaw are quenched, the soldering flux is melted to weld the clamp head and the jaw integrally. The processing method comprises the following steps: the clamp head and the jaw are clamped together to form a combination, the combination is coated with the soldering flux, the combination coated with the soldering flux is placed in a vacuum furnace or a tracked furnace with the gas protection function to be quenched, and at the same time, the soldering flux is melted to weld the clamp head and the jaw, so as to connect the clamp head with the jaw integrally, and at last, after excess materials of the clamp head and the jaw are cut with a wire or cut off by a grinding machine, a finished product is manufactured. The jaw is made of the higher hardness stainless steel, and a handle and a clamp body are made of the medium-low hardness stainless steel material, so that the problems of blackening and rusting of the jaw are solved well.

Description

technical field [0001] The invention relates to medical pliers and scissors, in particular to a medical pliers and a processing method of the medical pliers. Background technique [0002] The structures of existing medical instrument forceps and scissors jaws basically have the following categories: [0003] 1. If figure 1 , 2 As shown, the overall medium-hardness stainless steel material is directly processed into jaws (or knife edges) 3 after quenching; such jaws (or knife edges) cannot meet the requirements of long-term bending or cutting because the hardness of the stainless steel itself is not high after quenching. Hardness wire requirements. [0004] 2. If figure 1 , 2 As shown, the overall high-hardness stainless steel material is directly processed into jaws (or knife edges) 3 after quenching. This type of jaw (or knife edge), because the overall hardness of the material of stainless steel itself is too high after quenching, the jaw body is just relatively brit...

AI Technical Summary

Problems solved by technology

This kind of jaw (or knife edge), because the overall hardness of the stainless steel material itself is too high after quenching, the jaw body is brittle, easy to break, and the service life is not long

[0005] 3. If image 3 , 4 As shown, the clamp body 2 is made of low or medium-low hardness stainless steel, and the clamp jaw 3 made of hard alloy material is welded on the clamp body 2; although the problem of the hardness of the jaw processed by this method has been solved, due to the hardness Alloys are prone to blackening after repeated high-temperature disinfection; and the welding performance of low or medium-low hardness stainless steel and cemented carbide materials is very poor, that is, it is difficult to weld together, so the bonding method is generally used, and the flux is mostly low-temperature flux. However, after the two materials are bonded, the bonding reliability is poor, the jaws are easy to fall off, and the flux will turn black after long-term use, which affects the appearance

[0006] 4. As disclosed in the Chinese utility model patent ZL201020246307.7, although the laser cladding process can solve the problem of knife edge hardness and shedding, the laser cladding process is complex and costly, and its cladding layer belongs to the structure of steel castings , so the knife edge tissue is not dense enough, and the service life is not long

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