Optical fiber laser three dimensional printer for preparation of nano-ceramic bone tissue engineering scaffold

A technology of bone tissue engineering and three-dimensional printing, applied in the field of equipment for preparing bone tissue engineering scaffolds, can solve the problems of high brittleness, low toughness, poor reliability and damage resistance, and achieve slow power attenuation, long service life, The effect of small focus spot

Inactive Publication Date: 2015-01-14
CENT SOUTH UNIV
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Problems solved by technology

[0003] Bioactive ceramics have become the most potential bone tissue engineering materials due to their advantages of non-toxicity, corrosion resistance, elastic modulus compar

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  • Optical fiber laser three dimensional printer for preparation of nano-ceramic bone tissue engineering scaffold
  • Optical fiber laser three dimensional printer for preparation of nano-ceramic bone tissue engineering scaffold
  • Optical fiber laser three dimensional printer for preparation of nano-ceramic bone tissue engineering scaffold

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[0023] The present invention will be further described with reference to the accompanying drawings and specific embodiments.

[0024] see figure 1 , figure 2 , image 3 and Figure 4 , the base (1) is provided with a horizontal movement mechanism (2) in the X-Y direction, a forming support plate (3) is installed on the horizontal movement mechanism (2) in the X-Y direction, and the base (1) is also A bracket (4) is provided, a Z-direction vertical movement mechanism (5) is arranged on the bracket (4), a laser focusing system (7) is installed on the Z-direction vertical movement mechanism (5), and a laser focusing system (7) is installed on the Z-direction vertical movement mechanism (5). The base (1) is also provided with a fiber laser (6), the fiber laser (6) and the laser focusing system (7) are connected by an optical fiber (8), and the above-mentioned components are placed in a vacuum in the extraction chamber (9).

[0025] The laser in the present invention selects ...

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Abstract

The invention discloses a three dimensional printer for preparation of a nano-ceramic bone tissue engineering scaffold, the printer uses an optical fiber laser as energy, three-dimensional movement is realized by the mode of separation of horizontal movement and vertical movement mechanisms, and the printer has the function of vacuum pumping and preheating functions. The printer is characterized in that a base is provided with an X-Y direction plane motion mechanism, a forming support plate is arranged on the X-Y direction plane motion mechanism, the base is also provided with a support frame, a Z direction vertical lifting mechanism is arranged on the support frame, a laser focusing systems arranged on the Z direction vertical lifting mechanism, and the parts are put in a vacuum pumping chamber. The crystal grain growth can be controlled according to the rapid heating and cooling characteristic of laser, so that the prepared bone tissue engineering scaffold has a nano structure, the bone tissue engineering scaffold prepared by a rapid forming technology has personalized appearance, and the microporous structure of the scaffold can be controlled by adjusting laser spot sizes and scanning intervals.

Description

technical field [0001] The invention relates to a device for preparing a bone tissue engineering support, in particular to a three-dimensional (3D) printer for preparing a nano ceramic bone tissue engineering support by using an optical fiber laser to selectively sinter ceramic powder. Background technique [0002] Bone defects and loss of function caused by trauma, tumors, deformities, etc. in the human body often require implantation of substitutes for repair. Tissue engineering provides a new option for bone defect repair. The method is to use biodegradable materials to make three-dimensional porous scaffolds, implant bone cells to multiply and grow in the scaffolds, and induce osteogenesis under the induction of growth factors. At the same time, it gradually degrades until it is completely absorbed, and finally replaces the bone defect tissue. [0003] Bioactive ceramics have become the most potential bone tissue engineering materials due to their advantages of non-toxi...

Claims

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Application Information

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IPC IPC(8): C04B35/64
Inventor 帅词俊彭淑平胡焕隆
Owner CENT SOUTH UNIV
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