Patent ID: 8090540

Claim:
A method for fabricating a three-dimensional porous scaffold with internal pores and internal channels connecting the internal pores, comprising: generating bitmap templates according to the desired shapes and dimensions of the pores and channels within the scaffold; the bitmap templates having grids and spacings between the grids; pre-processing two-dimensional images to obtain the required structure in each image; duplicating the processed images, wherein the duplicated images are used to fill the slice thicknesses between two consecutive images; performing Boolean operation between the bitmap templates and the images including the pre-processed and duplicated, thereby the grid pattern of the bitmap templates will be transferred onto the images and will appear as two-dimensional array of pores and channels; converting the series of two-dimensional images into STL format; thereby the three-dimensional porous scaffold is designed; and fabricating the three-dimensional porous scaffold according to the STL format of the scaffold design.