23 Jul High-homogeneity bracket used for tissue engineering and preparation method of high-homogeneity bracket
Abstract
The invention discloses a high-homogeneity bracket used for the tissue engineering and a preparation method of the high-homogeneity bracket, belonging to the field of biomedical engineering. The preparation method is a technology comprising the following steps of: enabling a polymer solution or organic solvent to flow through a mould filled with pore-forming agent or a mixture of a polymer and the pore-forming agent under the action of a pressure difference, volatilizing the solvent or removing the pore-forming agent, demoulding and forming. Equipment used in a negative pressure method provided by the invention mainly comprises the four parts, i.e., a forming mould, a Buchner funnel, a rubber stopper and a filter flask. The equipment used in the method is simple and easy to obtain, is easy to implement control and operation, and can be used for preparing columnar and tubular porous brackets of various polymers. Compared with the traditional method, the method provided by the invention has the advantages that the tubular brackets can be directly obtained, the form and the porosity of a hole can be better kept, and the diameters and the wall thicknesses of the porous brackets can be expanded.
Year: 2012
Country: CN
Doc No: 102475906