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Automatic control turntable pneumatic multi-sprayer biological 3D (three dimensional) printing forming system and method

A 3D printing, multi-nozzle technology, applied in the direction of bone implants, etc., to achieve the effect of easy control, increased stability, and simple operation

Active Publication Date: 2014-07-30
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The original single nozzle cannot meet the requirements of scientific development and medicine. The design and development of complex bone scaffold bio-3D printing forming system with multiple nozzles has become inevitable.

Method used

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  • Automatic control turntable pneumatic multi-sprayer biological 3D (three dimensional) printing forming system and method
  • Automatic control turntable pneumatic multi-sprayer biological 3D (three dimensional) printing forming system and method
  • Automatic control turntable pneumatic multi-sprayer biological 3D (three dimensional) printing forming system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] see Figure 1~Figure 3 , the automatically controlled turntable pneumatic multi-nozzle biological 3D printing forming system includes an injection device, a three-dimensional motion mechanism, a forming table and a control and data processing system, and is characterized in that: the said injection device adopts a turntable multi-nozzle injection device, It is installed on the Z1-axis motion mechanism in the three-dimensional motion mechanism and slides up and down with the Z1-axis motion slider; the forming table is installed on the X-axis motion slider in the three-dimensional motion mechanism; the control and data processing system is a joint control Rotary disc type multi-nozzle spraying device and motor of three-dimensional motion mechanism.

[0056]

Embodiment 2

[0058] This example is basically the same as Example 1, the special features are as follows:

[0059] The turntable multi-nozzle injection device includes a control turntable motor, a crossbeam, a motor shaft, a connecting pipe, a turntable, a nut, a syringe piston cylinder, a syringe needle, a shaft sleeve, a groove-type photoelectric switch, and a groove-type photoelectric switch shield; The beam is fixedly installed on the Z1-axis motion slider; the control turntable motor is fixedly installed on the beam through screws, and the motor shaft faces downward; the shaft sleeve is an externally threaded sleeve, and the motor shaft is threadedly connected to one end of the shaft sleeve; There is a through hole in the middle of the turntable, the inner ring is an internal thread, and the turntable is connected to the other end of the bushing, which is an internal and external thread connection; the control turntable motor drives the motor shaft to rotate, and at the same time drive...

Embodiment 3

[0065] see Figure 4 , using the above-mentioned system to perform bio-3D printing forming method to realize the preparation of heterogeneous multi-material gradient regenerative bone scaffold, characterized in that it includes the following steps:

[0066] a. Before preparing the shaped bracket, the three-dimensional model is obtained through CT scanning reconstruction, and the model is layered with data processing software to obtain the formed coordinate G code, and the file is input into the computer control software;

[0067] b. Load the mixed 3D printing material solution into the syringe piston cylinder of the piston syringe respectively, eliminate the air bubbles in the syringe piston cylinder, and then install the syringe piston cylinder on the turntable;

[0068] c. Connect the turntable multi-nozzle injection device with the three-dimensional motion mechanism, install it on the Z1-axis motion slider, use the control and data processing system to drive the three-dime...

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Abstract

The invention discloses an automatic control turntable pneumatic multi-sprayer biological 3D (three dimensional) printing forming system and method. The system comprises a jet device, a 3D moving device, a forming table and a control system; the jet device adopts a turntable multi-sprayer jet device and is arranged on a Z1 axis moving mechanism in the 3D moving mechanism to slide along with a Z1 axis moving slider; the forming table is arranged on an X axis moving slider in the 3D moving mechanism; the control and data processing system is a motor for connecting and controlling the turntable multi-sprayer jet device with the 3D moving mechanism. The system uses the pneumatic extrusion forming process principle, and the moving of the forming table and the 3D moving mechanism and the spraying of the jet device are controlled by the control system, so a heterogeneous complex 3D support with multiple material gradients is realized. The automatic control turntable pneumatic multi-sprayer biological 3D printing forming system can realize high automation degree, easy control and simple operation.

Description

technical field [0001] The invention relates to an automatic control turntable-type pneumatic multi-nozzle biological 3D printing forming system and method, which can realize the precise forming of heterogeneous and various materials of complex three-dimensional gradient brackets, and is applied in the technical fields of mechanical manufacturing and biological manufacturing. Background technique [0002] Tissue engineering is a popular interdisciplinary subject at present. The three elements are cells, biomaterial scaffolds and growth factors. [0003] In terms of porous scaffold forming process, traditional methods include fiber bonding method, solvent casting method / particle filter method, melting method, gas foaming method, phase separation method, sintered microsphere method, etc. Although these traditional methods have obtained relatively successful porous scaffolds, the performance of the porous scaffolds obtained by them is not ideal. It is mainly manifested in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/28
Inventor 江郑龙刘媛媛李瑜郑璐璐谢明亮胡庆夕
Owner SHANGHAI UNIV
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