23 Jul Optical fiber laser three dimensional printer for preparation of nano-ceramic bone tissue engineering scaffold
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.
Year: 2015
Country: CN
Doc No: 104276826