Multi-track 3D biological printing system, control method and 3D printer

Abstract

The invention belongs to the technical field of 3D printing, and discloses a multi-track 3D biological printing system, a control method, a 3D printer, a main biological ink module and a printing module. The bio-ink module comprises a bio-ink box and a movement control system for controlling the X axis, the Y axis and the Z axis of the bio-ink box; the printing module comprises a fixed bio-ink charging barrel nozzle device, an XYZ axis movement rotation control system, a bio-ink charging barrel nozzle spacing control system and an ultraviolet light crosslinking module; the bio-ink cylinder comprises not limited to a multi-channel high-temperature ink cylinder, a multi-channel normal-temperature ink cylinder, a multi-channel coaxial ink cylinder, a multi-channel pressurizing ink cylinder and the like and is fixed in the bio-ink box. According to the 3D bio-printer, the printing capacity and the printing efficiency of the 3D bio-printer can be improved, multiple printing tasks can be conducted at the same time, a bio-printing product with the large size is constructed, and a more complex structure is constructed; the printing time is greatly shortened, and the biological printing quality is improved.

Description

technical field [0001] The invention belongs to the technical field of 3D printing, and in particular relates to a multi-track 3D biological printing system, a control method and a 3D printer. Background technique [0002] At present: 3D bioprinting is the core technology of biomanufacturing, which uses cells, proteins, biomaterials, etc. as structural units to construct biological models, life systems and therapeutic products. Compared with traditional tissue engineering and other printing methods that first print scaffolds and then inoculate cells to construct tissues, 3D bioprinting precisely prints different types of cells in corresponding spatial positions, and adds suitable biomaterials according to the characteristics of different tissues / organs. Form the strength and elasticity similar to tissues / organs and produce certain biological functions. 3D bioprinting is undoubtedly an advanced technology at present. It has important applications in the construction of scaff...

AI Technical Summary

Problems solved by technology

Therefore, when performing complex, large-scale, and large-scale bioprinting, the most important point is the printing time, which puts forward requirements for the printing efficiency of 3D bioprinters. At present, there are limitations in micro-extrusion 3D bioprinters.

[0004] Through the above analysis, the problems and defects of the existing technology are: when the existing 3D biological nozzles are running multi-nozzle printing, the printing efficiency is slow, which affects the cell activity and the size of the structure

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