PROBLEM TO BE SOLVED: To provide an organic impedance measuring apparatus which is safely inserted into the organic intra-cavity, which can abut against an electrode safely and properly on an intra-cavity wall, and which can measure in low invasion and in high precision.SOLUTION: An organic impedance measuring apparatus comprises: a hollow body part 10 having four long holes extending in the axial direction and adapted to be inserted into a cavity an operation part 12 inserted axially slidably into the body part 10 and four electrodes 15 arranged substantially in one row at a predetermined interval along the vicinity of an end portion and inserted into the body part 10 of the operation part 12, and the operation part 12 is inserted into the body part 10, so that they protrude toward an intra-cavity wall direction and abut against the intra-cavity wall.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2016,JPO&INPIT【課題】生体の腔内に安全に挿入され、電極を安全かつ適切に腔壁に当接することができ、低侵襲かつ精度の高い測定が可能な生体インピーダンス測定装置を提供する。【解決手段】軸方向に延伸する4個の長孔を有し腔内に挿入される中空の本体部10と、本体部10に軸方向に摺動可能に挿入される操作部12と、操作部12の本体部10へ挿入される端部近傍周りに所定間隔で略一列に配設され、操作部12を本体部10へ挿入することにより、腔壁方向に突出して腔壁に当接される4個の電極15と、を備える。【選択図】図2
