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Multi-type spray head replaceable biological 3D printing device

A 3D printing and replacement technology, applied in the field of biological 3D printing, can solve the problems of poor fluidity, insufficient pressure, and inability to adjust randomly, so as to meet the jetting requirements and improve the air tightness.

Active Publication Date: 2020-07-03
HEFEI C&P NONWOVEN PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing biological 3D printing devices are mostly set up as one nozzle, and single nozzle or multi-nozzle printing cannot be randomly adjusted according to different printing parts and biological tissue fluids, which seriously restricts printing speed and printing accuracy; in addition, due to the high viscosity and poor fluidity of biological tissue fluids , the biological 3D printing device in the prior art only uses the piezoelectric ceramic tube to indirectly act on the nozzle part as the drive, which obviously shows that the pressure provided is insufficient, so the phenomenon of nozzle clogging will occur

Method used

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  • Multi-type spray head replaceable biological 3D printing device
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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0031] It should be understood that terms such as "having", "comprising" and "including" as used herein do not entail the presence or addition of one or more other elements or combinations thereof.

[0032] Such as figure 1 , figure 2 As shown, the present invention provides a multi-type nozzle replacement type biological 3D printing device, including:

[0033]The conveying pipe 10 is arranged directly above the 3D printing table, and the conveying pipe also includes: a cylinder 101, which is a vertically arranged hollow pipe, and from the upper end of the cylinder to its lower end, the The cross-section of the cylinder gradually decreases; the shaft 102 is axially arranged in the cylinder, and the screw conveying piece is arranged on the shaft; the motor 103 drives the sh...

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Abstract

The invention discloses a multi-type spray head replaceable biological 3D printing device. The multi-type spray head replaceable biological 3D printing device comprises a conveying pipe and a nozzle assembly, wherein the conveying pipe is arranged over a 3D printing platform and comprises a barrel body, a shaft, a motor driving the shaft to rotate, at least two first pressurizing conveying sections, and a pair of pressurizing conveying stirring blades; the nozzle assembly is detachably arranged on the spherical surface of a spherical crown shaped sealing head and comprises a spherical crown shaped supporting shell, an annular slide groove, a pair of arc-shaped slide grooves arranged in a crossed mode, a plurality of arc-shaped plate bodies and a plurality of nozzles. The multi-type spray head replaceable biological 3D printing device can uniformly and smoothly spray biological interstitial fluid high in viscosity and density, and meets the printing requirements of biomedical products.

Description

technical field [0001] The invention relates to the technical field of biological 3D printing, in particular to a multi-model nozzle replacement type biological 3D printing device. Background technique [0002] 3D printing technology (three-dimensional printing, 3DP), also known as additive manufacturing, rapid prototyping technology, free prototyping technology, etc., is based on the principle of discrete accumulation, using layered processing and superimposed molding technology with computer assistance, that is, through Add material layer by layer to form a 3D solid. Bio-3D printing is a cross-application of 3D printing technology in the field of biomedicine, which has important research significance and application prospects. The use of 3D printing technology can not only make standard models, but also tailor-made surgical brackets with complex structures for patients. Scan the patient's bone defect with medical imaging techniques such as computed tomography (CT) or mag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/321B29C64/314B29C64/209B33Y30/00B33Y40/00B33Y40/10
CPCB29C64/209B29C64/314B29C64/321B29L2031/753B33Y30/00B33Y40/00
Inventor 尤宝旺
Owner HEFEI C&P NONWOVEN PROD
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