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Bio 3d printing nozzle

A 3D printing and biological technology, applied in the field of biological 3D printing, can solve the problems of high viscosity, poor fluidity, and insufficient pressure of biological tissue fluid, and achieve the effect of uniform cell distribution, reducing inner cell accumulation, and maintaining homogeneity

Active Publication Date: 2020-11-17
新沂市中振电器科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Just like the nozzle of an inkjet printer ejects ink, the bio-3D printing nozzle contains biological tissue fluid with biological cells that has been processed and modulated for composite biological 3D printing requirements. Due to the high viscosity and poor fluidity of biological tissue fluid, the prior art The biological 3D printing nozzle is only driven by the piezoelectric ceramic tube indirectly acting on the nozzle part, which obviously shows that the pressure provided is insufficient, so the nozzle will be clogged

Method used

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Embodiment Construction

[0033] 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.

[0034] 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.

[0035] Such as figure 1 As shown, the present invention provides a biological 3D printing nozzle, comprising:

[0036] 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 shaft to rotate; at least two first pressurized ...

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Abstract

The invention discloses a biological 3D printing nozzle. The biological 3D printing nozzle comprises a conveying pipe arranged over a 3D printing table, and further comprises a cylinder, a shaft, a motor for driving the shaft to rotate, at least two first pressurized conveying sections, a pair of pressurized conveying stirring blades, a second pressurized conveying section, two piezoelectric ceramic tubes II, and a nozzle body detachably arranged on the lower end of the conveying pipe; and two spray holes are formed in the axial direction of the nozzle body in a penetrating mode, and the spraying ranges of the two spray holes for spraying biological mucus do not overlap. The biological 3D printing nozzle can evenly and smoothly spray biological tissue fluid with high viscosity and high density, and the printing requirements of biomedical products are met.

Description

technical field [0001] The invention relates to the technical field of biological 3D printing, in particular to a biological 3D printing nozzle. 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 magnetic resonance (MRI) to obtain the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/209B29C64/314B29C64/321B33Y30/00B33Y40/00B33Y40/10
CPCB29C64/209B29C64/314B29C64/321B29L2031/7532B33Y30/00B33Y40/00
Inventor 尤宝旺
Owner 新沂市中振电器科技有限公司
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