The needle includes a hollow needle body. The needle body includes a sharpened portion and a proximal end located opposite the sharpened portion and forming an opening. The needle body has at least one through hole and a lumen. The through-hole is located at the sharp portion or close to the sharp portion. The lumen is provided between the through hole and the end opening. The needle body is composed of a mixture of a polymeric substrate that provides flexibility and a fibrous material that provides rigidity.針が中空の針本体を含む。針本体は、鋭利部及び鋭利部と反対側に位置し開口部を形作る近位端部を含む。針本体は、少なくとも１つの貫通孔及び内腔を有する。貫通孔は、鋭利部に位置するか又は鋭利部に近接して位置している。内腔は、貫通孔と端部の開口部との間に設けられている。針本体は、可撓性を与える高分子基材及び剛性を与える繊維材料の混合物で構成される。
