Intelligent photocuring bio-printer

Abstract

The invention relates to the technical field of bio-printers, in particular to an intelligent photocuring bio-printer. The intelligent photocuring bio-printer realizes continuous automatic printing with various materials and various steps in a projection type photocuring printing process through an automatic feeding and cleaning device, and improves the complexity and simulation of a biological 3D printing product; an adjustable positioning clamp is arranged on a working platform so as to position a forming container loaded with a biological printing material according to needs, so that the utilization rate of biological ink is increased; and a light source projection assembly and a feeding and cleaning head are arranged in a three-dimensional coordinate system and can move in a height dimension direction, the light source projection assembly and the feeding and cleaning head can also move in the same direction in at least one of the two remaining dimension directions, when the light source projection assembly and the feeding and cleaning head only can move in one of the two remaining dimension directions, the working platform at least can move in the other dimension direction, so that multi-position continuous automatic photocuring printing in the same plane is realized, the printing efficiency is improved, and high-throughput biological printing is realized.

Description

technical field [0001] The invention relates to the technical field of biological printers, in particular to an intelligent projection photocuring biological printer. Background technique [0002] Projection light-curing 3D printing technology is a bio-3D printing technology with the highest processing precision, the fastest printing speed, and good biocompatibility, so it has great application potential in biomedicine. The principle of photocuring printers is to control the height of the printing platform and the projected image through computer coordination, so that photosensitive materials, such as photosensitive resin, photosensitive hydrogel, photosensitive polymer materials, etc., are aggregated layer by layer according to the projected image under the light to complete 3D printing. The print of the structure. Existing light-curing printers generally include a platform lifting mechanism that moves along the Z axis, a molding platform, a resin tank with a fixed volume,...

AI Technical Summary

Problems solved by technology

Bio-inks usually contain a variety of components. The materials added in advance may precipitate due to gravity during the printing process, resulting in inhomogeneity of the material, which makes the printing effect inconsistent with the preset and low reproducibility.

[0004] 2. Existing light-curing bioprinters can only print in a fixed position and in a fixed container, that is, the resin tank. After printing, the sample needs to be removed from the printing platform, which cannot realize continuous printing of multiple materials and multiple positions on the plane. , unable to meet the needs of high-throughput manufacturing, and the printing efficiency is low

[0005] 3. In the existing light-curing bioprinters, no matter how large or small the final desired sample is, it needs to be carried out in a fixed-volume container. Usually, the container is large in volume, resulting in low utilization of bio-ink and high cost.

If you choose to reuse the bioink that has been illuminated, the performance of the bioink may change, affecting the reproducibility and reliability of the final product in biological applications

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