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Method for preparing soft and hard movable compound bone rehabilitation protection tool through 3D printing

A 3D printing and bone rehabilitation technology, applied in the field of 3D printing, can solve the problem that it is difficult to match the active parts of the joints with the patient, and achieve the effect of improving the treatment effect and broad-spectrum antibacterial effect

Inactive Publication Date: 2019-08-16
王小健
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although 3D printing technology is used to print orthopedic rehabilitation protective gear at present, it is difficult to achieve the best match for the patient's parts after the orthopedic rehabilitation protective gear printed by the existing technology is formed, especially the joint movable parts are difficult to achieve the best fit for the patient. Way

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The preparation of embodiment 1 antibacterial nylon material

[0032] The preparation method of the described antibacterial nylon material is: mix the raw materials of nylon 6, calcium carbonate, chopped glass fiber, coupling agent, lubricant, antioxidant and antibacterial agent according to the following parts by weight, and then carry out Get it by extrusion granulation;

[0033] The described raw material parts by weight consist of: 100 parts of nylon 6; 10 parts of calcium carbonate; 8 parts of chopped glass fiber; 2 parts of coupling agent vinyltrimethoxysilane; 2 parts of lubricant calcium stearate; 1 part of triethylene glycol ether-di(3-tert-butyl-4-hydroxy-5-methylphenyl) propionate; 1 part of antibacterial agent;

[0034] The antibacterial agent is prepared by the following method: soaking the nano-silver in an aqueous ethanol solution containing a 70% volume fraction of the Cortex ditsifolia extract for 12 hours, and then concentrating and drying the aqueous...

Embodiment 2

[0035] The preparation of embodiment 2 antibacterial nylon materials

[0036] The preparation method of the described antibacterial nylon material is: mix the raw materials of nylon 6, calcium carbonate, chopped glass fiber, coupling agent, lubricant, antioxidant and antibacterial agent according to the following parts by weight, and then carry out Get it by extrusion granulation;

[0037] The described raw material parts by weight consist of: 100 parts of nylon 6; 10 parts of calcium carbonate; 8 parts of chopped glass fiber; 2 parts of coupling agent vinyltrimethoxysilane; 2 parts of lubricant calcium stearate; 1 part of triethylene glycol ether-di(3-tert-butyl-4-hydroxy-5-methylphenyl) propionate; 1 part of antibacterial agent;

[0038] The antibacterial agent is prepared by the following method: soaking the nano-silver in an aqueous ethanol solution containing a 70% volume fraction of the Cortex ditsifolia extract for 12 hours, and then concentrating and drying the aqueou...

experiment example 1

[0052] Antibacterial performance test of experimental example 1 antibacterial nylon material

[0053] The antibacterial nylon materials prepared in Examples 1-2 and Comparative Examples 1-2 were printed into test specimens with a 3D printer. Refer to the method in GB / T 31402-2015 to test the antibacterial effect of antibacterial nylon materials, and calculate the bacteriostatic rate; bacteriostatic rate = (the number of bacteria after 24 hours of inoculation without antibacterial treatment - the number of bacteria after 24 hours of inoculation with antibacterial treatment number) / the number of bacteria after 24 hours of inoculation without antibacterial treatment; the test results are shown in Table 1.

[0054] Table 1. Antibacterial performance test results of antibacterial nylon materials

[0055] Escherichia coli inhibition rate Staphylococcus antibacterial rate MRSA inhibition rate Embodiment 1 antibacterial nylon material 99.98％ 99.99％ 74.41％ ...

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Abstract

The invention relates to the technical field of 3D printing, and specifically discloses a method for preparing a soft and hard movable compound bone rehabilitation protection tool through 3D printing.The method includes the following steps that modeling is conducted, wherein bone rehabilitation protection tool modeling is conducted through 3D modeling software or 3D scanning; slicing and printingare conducted, wherein slicing operation is conducted on a to-be-printed bone rehabilitation protection tool through the slicing technology; then, 3D printing is conducted on the bone rehabilitationprotection tool through a 3D printer; and the bone rehabilitation protection tool comprises a fixed part, a movable part and a connection part. Because an antibiosis nylon material is adopted for thefixed part of the bone rehabilitation protection tool, the fixed part of the bone rehabilitation protection tool can have an excellent antibiosis effect; and a polycaprolactone material capable of being softened is adopted for the movable part, and when not suitable for a patient, the movable part can be soaked in water of 60 DEG C to be softened and is then reshaped to match with the place for which the movable part is not suitable before.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a method for preparing a 3D printed soft and hard movable composite bone rehabilitation protective gear. Background technique [0002] Orthopedic rehabilitation protectors are mainly used to fix arm fractures, and are mainly used to fix wrists, elbows, arms, legs, knees, ankles, etc. With the development of 3D printing technology and the growth of precise and personalized medical needs, 3D printing technology has been significantly developed in the breadth and depth of medical industry applications. Although 3D printing technology is used to print orthopedic rehabilitation protective gear at present, it is difficult to achieve the best match for the patient's parts after the orthopedic rehabilitation protective gear printed by the existing technology is formed, especially the joint movable parts are difficult to achieve the best fit for the patient. Way. Contents of the in...

Claims

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Application Information

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IPC IPC(8): B29C64/393B29C64/10B33Y50/02B33Y10/00C08L77/02C08K13/04C08K7/14C08K3/26C08K5/00C08K3/08
CPCB33Y10/00B33Y50/02B29C64/10B29C64/393C08K3/08C08K3/26C08K5/0058C08K7/14C08K13/04C08K2003/0806C08K2003/265C08L77/02
Inventor 王小健赵雪阳刘晖盛银莹玉贵升
Owner 王小健
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