Method for the production of a three-dimensional carrier material for the reconstructive surgery with an open porous structure, comprises loosely applying fibers in several individual layers and connecting through binding stitches

摘要

The method for the production of a three-dimensional carrier material for the reconstructive surgery with an open porous structure, comprises loosely applying fibers in several individual layers and connecting through binding stitches to a form corresponding to defect area in bone. The layers are formed from short fibers (2) and nanofibers and stacked one upon the other. An area of the applied layer that corresponds to the cross-section of the carrier material to be formed in the relevant layer height is hardened after the application of the each layer from short fiber and nanofiber. The method for the production of a three-dimensional carrier material for the reconstructive surgery with an open porous structure, comprises loosely applying fibers in several individual layers and connecting through binding stitches to a form corresponding to defect area in bone. The layers are formed from short fibers (2) and nanofibers and stacked one upon the other. An area of the applied layer that corresponds to the cross-section of the carrier material to be formed in the relevant layer height is hardened after the application of the each layer from short fiber and nanofiber and is connected with the reinforced area to the layer to be formed. The alternating layer formation and layer hardening are repeated so that the three-dimensional carrier material exists with open porous structure and the form corresponding to the defect area of the bone. The short fiber has a diameter of 1-300 mu m and the nanofiber has a diameter of 100 nm. The first fiber layer is scattered on a lower layer. The layer formation is carried out in a container (5). The hardening of the layers from the short-fiber and nanofiber is carried out by thermal- or mechanical binding technology or material-fit binding technology. The formation of the layers from short fibers is carried out with a fiber blend made of absorbable and/or non-absorbable short-fiber or made of fibers with different cross-section and different fineness. The absorbable short-fiber is used with different degradation kinematics. The fibers of the fiber blend have a diameter of 1-300 mu m. An independent claim is included for a carrier material for reconstructive surgery.