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Laser sintering machine based on nano hydroxyapatite and used for manufacturing absorptive artificial bone

A nano-hydroxyapatite, laser sintering technology, applied in manufacturing tools, laser welding equipment, metal processing equipment and other directions, to achieve the effect of convenient control

Inactive Publication Date: 2009-09-16
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing artificial bones cannot meet the requirements of these biological and mechanical properties

Method used

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  • Laser sintering machine based on nano hydroxyapatite and used for manufacturing absorptive artificial bone
  • Laser sintering machine based on nano hydroxyapatite and used for manufacturing absorptive artificial bone
  • Laser sintering machine based on nano hydroxyapatite and used for manufacturing absorptive artificial bone

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Embodiment Construction

[0022] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0023] see figure 1 , figure 2 with image 3 , X, Y movement mechanism 1 is arranged on machine base 17, and sintering support plate 18 is arranged on X, Y movement mechanism 1, and raw material box up and down motion machine 3 and the raw material connected with it are arranged on sintering support plate 18. The box 6 and the sintering table up and down movement machine 4 and the sintering table 7 connected thereto, the sintering table up and down movement machine 4 is provided with a waste box 8 corresponding to the sintering table 7, and the sintering support plate 18 is provided with a feeding left and right movement mechanism 2. The feeding rod 5 corresponding to the raw material box 6 is installed on the feeding left and right movement mechanism 2, and a support 15 is provided on the machine base 17, and a laser and a laser focusing system corr...

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Abstract

The invention discloses a laser sintering machine based on nano hydroxyapatite and used for manufacturing an absorptive artificial bone. An X / Y motion mechanism (1) is arranged on a frame (17). A sintering support plate (18) is arranged on the X / Y motion mechanism (1). A raw material box up-down motion machine (3), a raw material box (6), a sintering table up-down motion machine (4) and a sintering table (7) are arranged on the sintering support plate (18). A feeding left-right motion mechanism (2) and a feeding rod (5) are arranged on the sintering support plate (18). A laser and laser focusing system (16) which is corresponding to the sintering table (7) is arranged on a bracket (15) of the frame (17). Nano hydroxyapatite powder (10-100nm) is arranged on the sintering table (7). Laser energy is assembled into a 50-100micron light spot by a focusing system such as a convex lens. A motion table is moved according to the requirement of section profile and certain sintering distance interval (150-500mum), partial powder is subjected to laser scanning, and a three-dimensional artificial bone is formed finally.

Description

technical field [0001] The invention relates to a device for manufacturing absorbable artificial bone, in particular to a device using laser selective sintering for preparing artificial bone with controllable degradation and adjustable pores. Background technique [0002] In recent years, the demand for artificial bone has continued to grow. In the United States, there are more than 1 million cases of bone transplantation every year. In my country, there are more than 15 million people with limited limb function. Due to the lack of ideal bone grafts, 3 million people have amputated their limbs, and nearly 3 million people suffer from bone injuries every year. , there are 250,000 cases requiring transplantation due to bone tumors alone. Hydroxyapatite has become the most promising bone material due to its excellent biological properties, but the problems to be solved are high brittleness and low toughness. Using nanotechnology to improve mechanical properties to prepare artifi...

Claims

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Application Information

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IPC IPC(8): B23K26/00A61L27/12A61L27/56B23K26/08B23K26/70
Inventor 帅词俊彭淑平
Owner CENT SOUTH UNIV
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