Registration needle aggregate null of affected part

摘要

PURPOSE: To firmly carry out the positioning of a focus for adapting a surgical operation and the like by the method wherein a positioning needle body inserted into a cannula provides a reversible fixing means, and the reversible fixing means is made to outwardly project from the side wall of the cannula for fixing the tissue of a human body. CONSTITUTION: A thrusting needle 10 provides a cylindrical outside cannula 11 and the needle body 12 of moving within the cylindrical cannula 11, and the needle body 12 provides a reversible whiskers 13, the whiskers 13 is projected outward from the bore 14 of the cylindrical cannula 11, then the needle body 12 of a positioning means is fixed to the tissue of the body. The needle body 12 provides a marks 29, 29a, and the marks 29, 29a are made to distinguish the position of the end portion of the cannula 11 and also the reversible whiskers 13 against the end portion of the cannula 11 and the bore 14 of the cylindrical cannula 11, and to distinguish by the marks as to when the whiskers 13 is retreated and then opened like an umbrella in the tissue of the body. The whiskers 13 is retreated within the cylindrical cannula 11 during the positioning work is under operation, and if the needle body 12 is advanced at a predetermined and favorable position, at that time the needle body 12 is again returned back within the cylindrical cannula 11, in contrast the whiskers 13 is opened like an umbrella through an opening 14 for fixing the needle body 12 of the positioning means into the tissue of the human body so as not to move therein.