And connecting a gripping member for gripping the living tissue and the medical towing member and medical traction member having a polymeric molding of biocompatible a weight for pulling the living tissue is resected by endoscopic observation under The medical traction tool formed by, upon ESD in the gastrointestinal tract, even a direction different from the movement axis of the endoscope and to secure the treatment area by removing from the treatment area effectively living tissue exfoliated, and safely, providing a traction device or medical pulling member can take action quickly.内視鏡観察下で切除される生体組織を牽引するための重りである生体親和性の高分子成形体を有する医療用牽引部材及び該医療用牽引部材と生体組織を把持する把持部材とを連結してなる医療用牽引具により、消化管内におけるESDに際し、内視鏡の移動軸と異なる方向へも、剥離した生体組織を効率的に処置野から取り除くことで処置野を確保し、且つ安全、迅速に処置を行うことができる医療用牽引部材もしくは牽引具を提供する。
