| 摘要 |
PROBLEM TO BE SOLVED: To provide a seamless artificial blood vessel in which a branch vessel B is branched from a main vessel A, and a method of manufacturing the branched artificial blood vessel in an industrially advantageous manner. SOLUTION: Hollow weaving is carried out, in which wefts (2) are inserted into rows of warps (1) whose width is proportional to the width W of the main vessel A to form a cylindrical pipe. At this time, the part in which a branch vessel B is branched from the main pipe A is formed so that the main vessel A in this part has an unfinished pipe-like structure in which the branch vessel B side is opened. Also, the part corresponding to the cylindrical width w of the branch vessel B is formed so that they flying width of each weft (2) is made to be long to form a structure in which only the wefts (2) are woven. Subsequently, the unfinished product is newly set in a weaving machine, and the wefts (2) of the part corresponding to the branch vessel B consisting of the only the rows of wefts (2) are used as the rows of warps (1') this time to carry out hollow weaving in which the wefts (2) are inserted into the rows of warps (1'). Thus, the cylindrical branch pipe is completed. |
