To provide a single code type spider searcher which makes it easy to search a pot.SOLUTION: A main body 10 of electric nonconductor constituting the pen type housing 11, a main body 10 installed in the pen type housing, one end of which protrudes from a distal end opening portion 13 of a pen tip portion provided at the tip of the pen type housing A tubular indifferent electrode 21 inserted into the hollow portion of the tubular indifferent electrode and having one end reaching the end portion 22 projecting from the tip opening portion of the pen tip portion of the indifferent electrode, Shaped probe 23, a cord 31 connected to a pair of electrodes, respectively, and delivered to the outside from the pen type housing in a state of being integrated, and a pair of electrodes And a current detection device to be connected. By placing a pair of electrodes within a diameter of the tip opening of the pen tip portion of the outer diameter of about 2 mm, it was possible to search for a pot with only a practitioner.BACKGROUND OF THE INVENTION【課題】つぼ探索を簡単に行い得るようにした単コード型つぼ探索子を提供する。【解決手段】ペン型ハウジング11を構成する電気不導体の本体10と、ペン型ハウジング内に設置され、一方の端部をペン型ハウジングの先端に設けたペン先部の先端開口部13から突出させた筒状の不関電極21と、筒状の不関電極の中空部に挿通され、一方の端部が不関電極のペン先部の先端開口部から突出した端部22に達する長尺棒状の探索子23とからなる一対の電極と、一対の電極にそれぞれ接続され、1本にまとめられた状態でペン型ハウジングから外部に送出されたコード31と、コードを介して一対の電極と接続される電流検知装置とからなり、一対の電極をペン先部の先端開口部の、外径約2mmの径内に置くことにより、施術者のみでつぼの探索を可能とした。【選択図】図1
