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A light-cured bioceramic composite material for 3D printing and its application and printing system

A technology of bioceramics and composite materials, applied in the field of materials, can solve the problems of difficult to use products alone, large sintering shrinkage, small contact area, etc.

Active Publication Date: 2020-08-28
北京龙凤呈祥医院管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The final result is: (1) large sintering shrinkage (>15%); (2) small contact area between granulated powders, low bonding strength after sintering, so the product is difficult to use alone, so infiltration is generally required metal for strength

Method used

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  • A light-cured bioceramic composite material for 3D printing and its application and printing system
  • A light-cured bioceramic composite material for 3D printing and its application and printing system

Examples

Experimental program
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Effect test

Embodiment 1

[0061] A light-cured bioceramic composite material for 3D printing, the raw material components and weight ratio of the material are: 10 parts of modified nano-tricalcium phosphate, 55 parts of modified nano-hydroxyapatite, bone morphogenetic 3 parts of protein (BMP), 40 parts of material support, 1 part of dispersant, 3 parts of nano zirconium dioxide, 2 parts of water-soluble rheology additive, 120 parts of deionized water.

[0062] The dispersant is ammonium polyacrylate; the water-soluble rheological additive is xanthan gum; the material support is selected from silk fibroin; the modified nano tricalcium phosphate and the modified nano hydroxyapatite The particle size of stone is less than 50 nanometers.

[0063] The modified nano tricalcium phosphate and the modified nano hydroxyapatite are modified with a modifier, and the raw material components and weight ratio of the modifier are as follows: 30 parts of photocurable resin, 30 parts of photosensitive trigger 3 parts o...

Embodiment 2

[0066] A light-cured bioceramic composite material for 3D printing. The raw material components and weight ratio of the material are: 15 parts of modified nano-tricalcium phosphate, 70 parts of modified nano-hydroxyapatite, bone morphogenetic 8 parts of protein (BMP), 50 parts of material support, 2 parts of dispersant, 5 parts of nano zirconium dioxide, 3 parts of water-soluble rheology additive, 150 parts of deionized water.

[0067] The dispersant is stearic acid; the water-soluble rheology additive is polyvinyl alcohol; the material support is selected from polylactic acid; the modified nano tricalcium phosphate and the modified nano hydroxyapatite The particle size is less than 50 nm.

[0068] The modified nano tricalcium phosphate and the modified nano hydroxyapatite are modified with a modifier, and the raw material components and weight ratio of the modifier are as follows: 40 parts of photocurable resin, 40 parts of photosensitive trigger 6 parts of agent, 70 parts o...

Embodiment 3

[0071] A light-cured bioceramic composite material for 3D printing, the raw material components and weight ratio of the material are: 12 parts of modified nano-tricalcium phosphate, 60 parts of modified nano-hydroxyapatite, bone morphogenetic 5 parts of protein (BMP), 45 parts of material support, 2 parts of dispersant, 4 parts of nano zirconium dioxide, 3 parts of water-soluble rheology additive, 130 parts of deionized water.

[0072] The dispersant is sodium polyacrylate; the water-soluble rheological additive is agarose; the material support is selected from a mixture of silk fibroin and polylactic acid; the modified nano tricalcium phosphate and the modified The particle size of nano-hydroxyapatite is less than 50 nanometers. The modified nano tricalcium phosphate and the modified nano hydroxyapatite are modified with modifiers, and the raw material components and parts by weight ratio of the modifiers are: 35 parts of photocurable resin, 35 parts of photosensitive trigger...

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Abstract

The invention discloses a photocuring biological ceramic composite material for 3D printing, and applications thereof, and a printing system. The photocuring biological ceramic composite material is prepared from the following raw material components in parts by weight: 10 to 15 parts of modified nano tricalcium phosphate, 55 to 70 parts of modified nano hydroxyapatite, 3 to 8 parts of bone morphogenetic protein (BMP), 40 to 50 parts of silk fibroin, 1 to 2 parts of a dispersing agent, 3 to 5 parts of nano zirconium dioxide, 2 to 3 parts of a water-soluble rheological aid and 120 to 150 partsof deionized water.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a light-cured bioceramic composite material for 3D printing and its application and printing system. Background technique [0002] The market background of medical artificial bone biomaterials is that there is a huge demand for the treatment of bone injuries in China. At present, there are 7.57 million patients with limb disabilities and 3 million new patients with bone injuries each year who need a large amount of bone repair materials. Most of the artificial bone substitute materials currently used clinically are made of metal or polymer materials, and these materials have their own irreparable shortcomings in terms of biocompatibility, bioactivity, and biodegradability. [0003] Bionic artificial bone refers to a human bone substitute or fracture fixation material made of artificial materials. Bionic artificial bone is a substitute for traditional bone damage repair materia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/447C04B35/622A61L27/10A61L27/12B29C64/135B29C64/255B29C64/268B29C64/393B33Y10/00B33Y30/00B33Y50/02B33Y70/10
CPCA61L27/10A61L27/12B29C64/135B29C64/255B29C64/268B29C64/393B33Y10/00B33Y30/00B33Y50/02B33Y70/00C04B35/447C04B35/622C04B2235/3244C04B2235/5454C04B2235/6026C04B2235/656
Inventor 金马丁明
Owner 北京龙凤呈祥医院管理有限公司
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