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3D printing magnesium alloy material degradation test device and application

A 3D printing and testing device technology, applied in the field of biomedicine, can solve the problems of unintuitive results and inaccurate test results, and achieve accurate and intuitive results, convenient and fast testing, and good durability.

Active Publication Date: 2020-11-06
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a 3D printed magnesium alloy material degradability testing device in order to solve the problems of inaccurate test results and unintuitive results in the existing in vitro test equipment for the biodegradability of magnesium alloy medical devices

Method used

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  • 3D printing magnesium alloy material degradation test device and application
  • 3D printing magnesium alloy material degradation test device and application
  • 3D printing magnesium alloy material degradation test device and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Such as figure 1 , 2 , a kind of 3D printing magnesium alloy biomaterial degradability test device shown in 3, comprises the cardiac bionic cabin 11, sample loading device, pretreatment device fixed on the support 24; The internal middle position of described cardiac bionic cabin 11 is fixed There is a non-porous bionic valve plate 26, and the non-porous bionic valve plate 26 divides the heart bionic cabin 11 into two independent areas that are not connected to each other on the left and right sides. In the heart bionic cabin on both sides of the non-porous bionic valve plate 26, porous bionic valves are respectively arranged. The valve plate 13 is provided with outlets on both sides of the bottom of the bionic heart chamber 11, and the outside is connected to the liquid storage tank 15 through two power pumps 14 and the liquid supply pipeline 9 equipped with a flow meter 8 and a high-precision flow node 25 , the liquid storage tank 15 is connected to the temperature c...

Embodiment 2

[0056] Such as figure 1 , 2 , a kind of 3D printing magnesium alloy biomaterial degradability test device shown in 3, comprises the cardiac bionic cabin 11, sample loading device, pretreatment device fixed on the support 24; The internal middle position of described cardiac bionic cabin 11 is fixed There is a non-porous bionic valve plate 26, and the non-porous bionic valve plate 26 divides the heart bionic cabin 11 into two independent areas that are not connected to each other on the left and right sides. In the heart bionic cabin on both sides of the non-porous bionic valve plate 26, porous bionic valves are respectively arranged. The valve plate 13 is provided with outlets on both sides of the bottom of the bionic heart chamber 11, and the outside is connected to the liquid storage tank 15 through two power pumps 14 and the liquid supply pipeline 9 equipped with a flow meter 8 and a high-precision flow node 25 , the liquid storage tank 15 is connected to the temperature c...

Embodiment 3

[0068] Such as figure 1 , 2 , a 3D printing magnesium alloy biomaterial degradability test device shown in 3, including fixed on a support such as figure 1 , 2 , a kind of 3D printing magnesium alloy biomaterial degradability test device shown in 3, comprises the cardiac bionic cabin 11, sample loading device, pretreatment device fixed on the support 24; The internal middle position of described cardiac bionic cabin 11 is fixed There is a non-porous bionic valve plate 26, and the non-porous bionic valve plate 26 divides the heart bionic cabin 11 into two independent areas that are not connected to each other on the left and right sides. In the heart bionic cabin on both sides of the non-porous bionic valve plate 26, porous bionic valves are respectively arranged. The valve plate 13 is provided with outlets on both sides of the bottom of the bionic heart chamber 11, and the outside is connected to the liquid storage tank 15 through two power pumps 14 and the liquid supply pip...

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Abstract

The invention discloses a degradability test device for 3D printing magnesium alloy material, comprising a cardiac artificial chamber fixed on a support, a sample carrier, and a pretreatment device; the cardiac artificial chamber is divided into two independent regions by a no-pore artificial valve plate; a porous artificial valve plate is arranged in each independent region; the cardiac artificial chamber is also connected with a temperature detector, a hydrogen detector, a pressure sensor, a gas storage cylinder, a PH auto-control system and an alarm; a rotary shaft is arranged on the support; the sample carrier is mounted on the rotary shaft; the sample carrier includes a speed adjusting motor; a drill chuck is fixed to one end of an output shaft of the speed adjusting motor; a sample carrying unit is mounted on the drill chuck; the pretreatment device comprises an ultrasonic device, a drying box, and a weigher. The degradability test device for 3D printing magnesium alloy materialis high in automation level and enables degrading action of an implant material in a human body to be simulated more accurately, testing is convenient and fast, and the results are accurate and visual.

Description

technical field [0001] The invention belongs to the field of biomedicine, and relates to a 3D printing magnesium alloy material degradability test device and application. Background technique [0002] Magnesium alloy has the advantages of good mechanical properties, biocompatibility, and degradability in human physiological fluids, and is expected to become an ideal biomedical metal material. With the development of 3D printing technology, this technology can be used to prepare magnesium alloy biomaterials with fully fitted shapes and sizes to achieve customization. However, for materials implanted into the human body, such as bone nails, artificial bones, and scaffolds, during service, the study of the corrosion degradation behavior of implanted materials in the body is not only complicated in procedure, but also difficult to achieve in the harsh test environment and conditions. The extracorporeal circulation system simulates the corrosion degradation behavior of implanted...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N5/04
CPCG01N5/04
Inventor 梁敏洁吴存廖海洪赵占用王彬
Owner ZHONGBEI UNIV
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