23 Jul Multi-nozzle injection device used for three-dimensional controlled forming machine of complex organ precursor
Abstract
The invention relates to a multi-nozzle injection device used for a three-dimensional controlled forming machine of a complex organ precursor, which belongs to the technical field of tissue engineering. The device comprises a main drum, a movable barrel, a control motor and nozzle components, wherein at least two nozzle component guide slots are vertically arranged in the circumferential direction of the main drum, and a slide block is arranged in each nozzle component guide slot; the nozzle component is fixedly connected with the slide block; the movable barrel is arranged at the inner side of the main drum, the upper surface of the movable barrel is an inclined ring surface, and the inclined ring surface is tightly contacted with the bottom of the slide block; and the control motor is fixed on the three-dimensional controlled forming machine frame of the complex organ precursor. The control motor drives the movable barrel or the main drum to rotate relatively; and the relative rotation of the movable barrel and the main drum drives the slide block to ascend and descend in the vertical direction so as to make the nozzles of the injection device ascend and descend when being switched, and effectively avoid the influence of stand-by nozzles on the forming of working nozzles, and can realize the precise forming of the large heterogeneous complex three-dimensional organ precursor with multiple materials.
Year: 2010
Country: CN
Doc No: 101879492