Cutter blank forming technology of ceramic surgical blade

A surgical blade and forming process technology, applied in the direction of manufacturing tools, other manufacturing equipment/tools, anatomical instruments, etc., can solve the problem that the detailed process of the blade blank forming process is not disclosed, the surgical blade cannot meet the requirements of satisfaction, zirconia ceramics The processing difficulty is complex and other problems, to achieve the effect of reducing sintered delamination, easy drying, and good bonding

Inactive Publication Date: 2016-04-20
ZHUHAI LUCKYMAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because zirconia ceramics have many excellent characteristics, if it can be applied to surgical blades, it will significantly improve the performance of surgical blades. However, due to the complexity of processing zirconia ceramics and the special industry standards in the field of medical devices, the existing technology Supplied surgical blades made of zirconia ceramics could not meet the requirements or the satisfaction was low
At present, there are many molding processes for zirconia ceramics, such as gel molding, dry powder compression molding, inje

Method used

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Embodiment Construction

[0022] In this embodiment, the blank forming process of a ceramic surgical blade includes the following steps performed in sequence:

[0023] (1) Ball milling slurry: mix the zirconia powder with dispersant, binder, plasticizer, and solvent in proportion and put it into a 12L planetary ball mill and mill it for 24 hours at a milling frequency of 30Hz to make a stable, dispersed and uniform slurry. For slurry, the median diameter of the discharge should not be greater than the median diameter of the powder.

[0024] (2) Preparation of casting slurry: Pour the ball mill slurry into a beaker, and then put it into a defoaming machine for defoaming and curing to form a casting slurry. The viscosity of the casting slurry is required to be 8000-12000MPa.s , measured using a rotational viscometer;

[0025] (3) Preparation of green belt: the casting slurry is cast and formed, the speed of the casting machine is 20mm / min, the height of the casting knife is adjusted according to empiric...

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Abstract

The invention discloses a cutter blank forming technology of a ceramic surgical blade. The cutter blank forming technology of the ceramic surgical blade sequentially includes the following execution steps that firstly, slurry is ground, ball milling frequency is 30 Hz, and ball milling time is 24 hours; secondly, tape-casting slurry is prepared, and the viscosity is required to be 8000-12000 MPa.s; thirdly, a blank strip is prepared, the rotation speed of a tape-casting machine is 20 mm/min, and the thickness of the generated blank strip is 0.35+/-0.02 mm; fourthly, lamination isostatic pressing forming is conducted, multiple laminations are stacked at equal thickness, isostatic pressure is 25-30 MPa, and the water temperature is required to be 85+/-3 DEG C; fifthly, punching forming and sintering are carried out, sintering temperature is 1350-1380 DEG C, and sintering time is 2 hours; sixthly, appearance inspection is conducted. The cutter blank forming technology of the ceramic surgical blade is high in production efficiency, high in density, bending strength and Vickers hardness of the formed cutter blank, high in sintering yield and high in cutting edge sharpness.

Description

technical field [0001] The invention relates to a blank forming process of a ceramic surgical blade, in particular to a blank forming process of a zirconia ceramic surgical blade. Background technique [0002] The scalpel is a very important tool in medical surgery, which provides a strong guarantee for human health. A scalpel generally includes a blade and a handle, and the blade is generally made of a metal material. The most commonly used metal material is stainless steel, the sharpness of the blade can only reach 0.3-0.4, and the blade of the stainless steel scalpel will have a sawtooth structure during processing. After the surgical operation with a scalpel, the wound is not smooth enough, the healing is slow, and it is easy to cause scar formation. In addition, scalpels made of metal materials have the risk of metal elements spreading, thus contaminating the wound, which is also not conducive to wound healing. Moreover, the scalpel made of metal material has low har...

Claims

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Application Information

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IPC IPC(8): C04B35/48C04B35/622A61B17/3211B24B3/36
CPCC04B35/48A61B17/3211B24B3/36C04B35/622C04B35/6261C04B35/63C04B2235/604C04B2235/606C04B2235/612
Inventor 吴崇隽王洋向军杜刚
Owner ZHUHAI LUCKYMAN TECH CO LTD
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