Preparation method of HAP/TCP/TTCP (hydroxylapatite/tricalcium phosphate/tetracalcium) multiphase porous ceramic artificial bone

Preparation method of HAP/TCP/TTCP (hydroxylapatite/tricalcium phosphate/tetracalcium) multiphase porous ceramic artificial bone

  • CN 103,656,737 A
  • Filed: 09/25/2012
  • Published: 03/26/2014
  • Est. Priority Date: 09/25/2012
  • Status: Active Application
First Claim
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1. utilize the single HAP material of SLS technology sintering to prepare a method for the heterogeneous porous artificial bone scaffold of HAP/TCP/TTCP, mainly comprise the following steps:

  • (1) HAP powder is placed in the SLS system of development voluntarily, by the profile requirement in defective bone cross section and certain sintering apart from interval, control laser sintered powder selectively, after sintering one deck, a layer thickness of workbench decline, the stone and the sintering that carry out lower one deck, be layering so again, finally realizes the sinter molding of ceramic artificial bone;

    (2) adjust laser technical parameters (laser power and scanning speed) sintering nano-HAP powder respectively, by controlling sintering time (scanning speed), control the decomposition of HAP, prepare the HAP/TCP/TTCP multiphase ceramic artificial bone that different phase contents form;

    (3) workbench certain height that declines, takes off artificial bone utilize from workbench the equipment such as hairbrush and air gun to remove after unsintered powder, obtains having the HAP/TCP/TTCP multiphase ceramic artificial bone of three-dimensional porous structure.

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