<；P>；PROBLEM TO BE SOLVED: To provide the manufacture process of a needle-like material that improves a volume of medicine held by it without enlarging its size. <；P>；SOLUTION: A needle-like material with uneven side surfaces is manufactured. By making its side surfaces irregular, the volume of a medicine held by the needle-like material can largely increase since more medicine can be retained there when applied to its irregular side surfaces. When this needle is used to collect body fluid such as blood, etc., it can also collect a sufficient volume by holding the body fluid at its side irregular surfaces. <；P>；COPYRIGHT: (C)2008,JPO&INPIT
