PROBLEM TO BE SOLVED: To provide a luminal form tracer that can depict the inside of a luminal while preventing a body fluid from being interrupted.SOLUTION: The luminal form tracer 10 includes: a flexible long-length body 100 a plurality of elastically deformable opening and closing parts 102 that are disposed in an opening state radially extending from the long-length body from the opening state to a closing state falling toward the long-length body and a radiographic wire 104, one end of which is connected with the opening and closing part and the other end of which is connected with the long-length or the opening and closing part.COPYRIGHT: (C)2012,JPO&INPIT【課題】体液の遮断を防ぎつつ管腔内部を描写し得る管腔形態トレーサを提供する。【解決手段】管腔形態トレーサ10は、可撓性を有する長尺体100と、長尺体から放射状に伸びた開状態で複数設けられ、開状態から長尺体に向かって倒れた閉状態に弾性変形可能な開閉部102と、一端が開閉部に接続し、他端が長尺体又は開閉部に接続したX線造影性ワイヤ104と、を有する。【選択図】図3
