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Method for preparing artificial acetabulum cup

An acetabular cup and artificial technology, applied in the field of artificial acetabular cup preparation, can solve the problems of small size, low production efficiency, and inability to scale up, and achieve high product consistency and good reproducibility

Inactive Publication Date: 2015-04-29
ZHEJIANG YIHUO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The artificial acetabular cup is a structural part of the artificial hip joint. The existing artificial acetabular cup is usually produced by mechanical processing. Because the structure of the acetabular cup is complex and the volume is small, the production efficiency of the mechanical processing method is low, and it cannot be large-scale and low-cost. Production of hip materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for preparing an artificial acetabular cup, the steps are as follows:

[0018] (1) Metal powder and organic polymer materials are used for feeding preparation, and then the acetabular cup blank is injected in the mold; the injection temperature is 150°C, the pressure is 160MPa, the mold temperature is 40°C, and the injection blank is obtained by injection;

[0019] (2) Degreasing the blank after injection, the degreasing temperature is 40°C, and the time is 12 hours to obtain the degreasing part;

[0020] (3) Sinter the product after degreasing, and the sintering temperature is 1200°C.

[0021] The metal powder is titanium alloy powder, and the composition is: Ti-15Zr-4Nb-4Ta-0.2Pd.

Embodiment 2

[0023] A method for preparing an artificial acetabular cup, the steps are as follows:

[0024] (1) Metal powder and organic polymer materials are used for feeding preparation, and then the acetabular cup blank is injected in the mold; the injection temperature is 100°C, the pressure is 200MPa, the mold temperature is 30°C, and the injection blank is obtained by injection;

[0025] (2) After injection, degrease the blank, the degreasing temperature is 30°C, and the time is 20 hours, to obtain the degreasing part;

[0026] (3) Sinter the product after degreasing, and the sintering temperature is 800°C.

[0027] The metal powder is titanium alloy powder, and the composition is: Ti-29Nb-13Ta-4.6Zr.

Embodiment 3

[0029] A method for preparing an artificial acetabular cup, the steps are as follows:

[0030] (1) Metal powder and organic polymer materials are used for feeding preparation, and then the acetabular cup blank is injected into the mold; the injection temperature is 180°C, the pressure is 60MPa, the mold temperature is 50°C, and the injection blank is obtained by injection;

[0031] (2) Degreasing the embryo after injection, the degreasing temperature is 50°C, and the time is 8 hours to obtain the degreasing part;

[0032] (3) Sinter the product after degreasing, and the sintering temperature is 1500°C.

[0033] The metal powder is titanium alloy powder, and the composition is: Ti-15Zr-4Nb-4Ta-0.2Pd.

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Abstract

The invention relates to medical rehabilitation equipment and in particular to a method for preparing an artificial acetabulum cup. The method comprises the following steps: (1) carrying out feeding preparation by adopting metal powder and organic polymer materials, and then injecting an acetabulum cup blank piece in a mould, wherein the injection temperature is 80-200 DEG C, the pressure is 50-230 MPa, and the mould temperature is 30-50 DEG C; after injection, obtaining an injection blank piece; (2) after injection, degreasing the blank piece for 2-20 hours at the temperature of 30-50 DEG C, and thus obtaining a degreased piece; (3) after degreasing, sintering the product at the temperature of 800-1500 DEG C. The method adopts a metal injection method to manufacture the acetabulum cup, so that the problem that the efficiency of manufacturing the acetabulum cup with a mechanical method is low is solved. Moreover, the method can be used for manufacturing the acetabulum cup with a composite structure and the acetabulum cup with a composite material structure, and the product is good in consistency and good in reproducibility.

Description

technical field [0001] The invention relates to a medical rehabilitation device, in particular to a preparation method of an artificial acetabular cup. Background technique [0002] The artificial acetabular cup is a structural part of the artificial hip joint. The existing artificial acetabular cups are usually produced by mechanical processing. Because the structure of the acetabular cup is complex and the volume is small, the production efficiency of the mechanical processing method is low, and it cannot be large-scale and low-cost. Production of hip joint materials. Contents of the invention [0003] The object of the present invention is to solve the above-mentioned problems in the prior art, and to provide a new method using metal injection to prepare artificial acetabular cups. [0004] The solution provided by the present invention to solve the above technical problems is: a method for preparing an artificial acetabular cup, comprising the following steps: [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/22B22F5/10A61F2/34
Inventor 申建中姜志瑜王有林
Owner ZHEJIANG YIHUO TECH
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