23 Jul Polyester reinforced degradable porous gastrosil compound stent material, preparation and use
Abstract
The invention discloses a preparing method of polyester enhanced degradable bioactive porous silicate calcium composite stent material, comprising the following steps: (1) calcium silicate powder, pore former and bonding agent are mixed uniformly to be molded and calcined to obtain a porous calcium silicate ceramic skeleton; (2) the porous calcium silicate ceramic skeleton is immersed in polyester solution or polyester/calcium silicate ceramic mixed suspension to be infused into the porous calcium silicate ceramic skeleton; (3) the immersed and infused porous calcium silicate ceramic skeleton is taken out to be dried. Pores of the polyester enhanced degradable bioactive porous silicate calcium composite stent material prepared by the invention are highly communicated. Compared with a pure porous silicate calcium stent, the mechanical strength is improved by 3-30 times. The polyester enhanced degradable bioactive porous silicate calcium composite stent material can be used for the hard tissue defect repairing or as a bone tissue engineering cell stent.
Year: 2009
Country: CN
Doc No: 101474428