Device and method for measuring consistency of extrusion type 3D printing medical ceramic slurry

A ceramic slurry, 3D printing technology, applied in the field of 3D printing, can solve the problems of waste of raw materials and increase the investment of man-hours, and achieve the effect of easy observation and easy data reading.

Active Publication Date: 2021-01-29
西安点云生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This not only causes waste of raw materials, but also increases the investment of man-hours.

Method used

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  • Device and method for measuring consistency of extrusion type 3D printing medical ceramic slurry
  • Device and method for measuring consistency of extrusion type 3D printing medical ceramic slurry
  • Device and method for measuring consistency of extrusion type 3D printing medical ceramic slurry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0059] The test method for the consistency of medical ceramic slurry for extrusion 3D printing, including the following steps:

[0060] Select medical ceramic powder beta tricalcium phosphate (β-TCP) and hydroxyapatite (HA), use polyvinyl alcohol (PVA) aqueous solution as binder, and use a homogenizer ZYMC-580V to mix an appropriate amount of ceramic powder ( HA:β-TCP=3:2) and PVA aqueous solution with a concentration of 12% were stirred evenly, wherein the mass ratio of ceramic powder to PVA was 9:1.

[0061] Step 1, put the evenly stirred ceramic slurry into the volumetric flask 4, divide into three times, vibrate each 1 / 3 by hand several times to make the surface of the ceramic slurry smooth.

[0062] Step 2, after the third charging is completed, one side of the angled scraper is tilted to be flush with the surface of the ceramic slurry, and the surface of the ceramic slurry is scraped flat. Adjust the upper and lower positions of the magnet so that the solid needle is fl...

Embodiment example 2

[0068] The test method for the consistency of extruded 3D printing ceramic slurry includes the following steps:

[0069] Select medical ceramic powder β-TCP, HA, and PVA aqueous solution as the binder, and use a homogenizer to stir an appropriate amount of ceramic powder (HA:β-TCP=3:2) and a PVA aqueous solution with a concentration of 12%. Wherein the mass ratio of ceramic powder and PVA is 8:1.

[0070] Step 1, put the stirred ceramic slurry into the bottom-capped volumetric flask 4, divide it into three packages, vibrate 1 / 3 of each package several times by hand to make the surface of the ceramic slurry smooth.

[0071] Step 2 After the third charging is completed, one side of the angled scraper is tilted to be flush with the surface of the ceramic slurry, and the surface of the ceramic slurry is scraped. Adjust the upper and lower positions of the magnet so that the solid needle is flush with the surface of the ceramic slurry and read the scale value corresponding to the ...

Embodiment example 3

[0077] The test method for the consistency of medical ceramic slurry for extrusion 3D printing, including the following steps:

[0078] Select medical ceramic powder β-TCP, HA, and PVA aqueous solution as the binder, and use a homogenizer to stir an appropriate amount of ceramic powder (HA:β-TCP=3:2) and a PVA aqueous solution with a concentration of 12%. Wherein the mass ratio of ceramic powder and PVA is 7:1.

[0079] Step 1, put the stirred ceramic slurry into a volumetric flask, divide into three fillings, vibrate 1 / 3 of each filling several times by hand to make the surface of the ceramic slurry smooth.

[0080] Step 2, after the third charging is completed, one side of the angled scraper is tilted to be flush with the surface of the ceramic slurry, and the surface of the ceramic slurry is scraped flat. Adjust the upper and lower positions of the magnet so that the solid needle is flush with the surface of the ceramic slurry and read the scale value corresponding to the ...

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Abstract

The invention provides a device and a method for measuring the consistency of medical ceramic slurry for 3D extrusion printing. The device comprises a connecting bracket, a volumetric flask and a cylinder, wherein the top of the cylinder body is fixedly connected to the connecting bracket; a cylindrical body is coaxially arranged in the cylinder body, the bottom of the cylindrical body is connected with a solid needle head, the solid needle head extends out of the bottom of the cylinder body, and the cylindrical body can move up and down in the cylinder body; scale marks for reflecting the position height are arranged on the cylinder body; when the device is in use, the volumetric flask is positioned below the barrel, medical ceramic slurry is contained in the volumetric flask, the longitudinal position of the columnar body is adjusted firstly, so that the end part of the solid needle head is flush with the surface of the medical ceramic slurry, the position height of the columnar bodyis read, and after the columnar body freely falls for a set time, the position height of the columnar body is read; and the consistency of the medical ceramic slurry is reflected by utilizing the needle penetration value. The consistency of the medical ceramic slurry suitable for 3D extrusion type printing molding can be effectively estimated, so the waste of raw materials and working hours is reduced, and the cost is low.

Description

technical field [0001] The invention belongs to the technical field of 3D printing, and in particular relates to a measuring device and method for extruding 3D printing medical ceramic slurry consistency. Background technique [0002] Bioceramic materials refer to a class of materials used for specific biological or physiological functions. They can be directly used in the human body or directly related to the human body. Biological, medical and biochemical ceramic materials. Among them, medical ceramic materials have no toxic side effects and good degradation performance. , It has good biocompatibility with biological tissues, so it is more and more favored by scholars. Such as: β-tricalcium phosphate, α-tricalcium phosphate, tricalcium polyphosphate, hydroxyapatite, etc. [0003] The ideal artificial bone implant formed by 3D printing of medical ceramic materials can print personalized products according to customized requirements. It not only has a reasonable internal po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N11/12
CPCG01N11/12
Inventor 曾庆丰何蕊李建宾
Owner 西安点云生物科技有限公司
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