Manufacture method for degradable tube and degradable stent

2015 
The invention provides a manufacture method for a degradable tube and a degradable stent. The method comprises the steps that an original degradable tube disposed in a die is heated to a deformation temperature, and an expansion pressure is applied into the original degradable tube, so that the original degradable tube can expand radially and can then be pressed against the inner surface of the die; and after that, the original degradable tube is moved horizontally along the axial direction of the die. The steps are repeated for once or multiple times according to demands. Through horizontal moving of the original degradable tube, predetermined parts can expand radially, so that the degradable tube with a sufficient length can be obtained; and intensity demands for the degradable tube are met during radial expansion of the original degradable tube, so that the prepared degradable tube can satisfy a length requirement and the intensity demands, and efficiency and performance of preparation of the degradable stent are enhanced.
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