23 Jul Low-temp. extrusion/jet-stacking forming process of structure engineering carrier frame
Abstract
The production process of human body tissue engineering carrier frame includes the following steps: firstly, preparing liquor containing tissue engineering carrier frame material and liquid containing growth factor at room temp., according to the user’s requirements and previously designed and defined pathway extruding or jetting the above-mentioned two liquors respectively by means of different sprayers in the low-temp. environment of below zero deg.C, and making them form layer-by-layer stacked frozen porous tissue engineering carrier frame, then freeze-dried in freeze-drying machine, removing solvent so as to obtain the invented tissue engineering carrier frame. Its formation process and porosity structure of the frame, and the pore size and its through property can be well controlled,so that it is favorable for internal degradation of carrier frame in human body and nutrition and metabolism of regenerated tissue, and can well retain the bio-activity of biological material.
Year: 2002
Country: CN
Doc No: 1341458