PROBLEM TO BE SOLVED: To provide a hemostatic instrument with high operability, capable of quickly arresting hemorrhage at an injured part of a blood vessel, while securing a sufficient blood flow by a low-invasive and percutaneous approach without especially requiring an appropriate supply operation such as gas in emergencies.SOLUTION: A hemostatic instrument 100 includes: a cylindrical braided-body (a mesh stent 1) formed by braiding wires 1a a first shaft (an inner tube 2) in which one end in the axial direction of the braided body is fixed to a distal end thereof and a cylindrical second shaft (an outer tube 3) in which the other end in the axial direction of the braided body is fixed to the distal end thereof. At least any one of the first shaft and the second shaft is moved in a direction relatively not overlapped with the axial direction, so that the braided body is extended in the axial direction and reduced in the radial direction to be able to be inserted/retracted with respect to the blood vessel. At least one of the first shaft and the second shaft is moved in a direction relatively overlapped with the axial direction, so that the braided body is reduced in the axial direction and expanded in the radial direction so as to cover an injured part of the blood vessel.SELECTED DRAWING: Figure 1【課題】緊急時において、ガスなどの適切な供給操作等を特に要さずに、低侵襲である経皮的なアプローチにより十分な血流を確保しつつ血管の損傷部を迅速に止血できる、操作性に優れた止血用器具を提供すること。【解決手段】止血用器具100は、線材1aが編み組まれてなる円筒状の編体(メッシュステント1)と、編体の軸方向の一方の端部が先端部に固定された第1軸(内管2)と、編体の軸方向の他方の端部が先端部に固定された円筒状の第2軸(外管3)と、を備える。第1軸および第2軸のうちの少なくともいずれか一方が、軸方向に相対的に重ならない方向に移動させられることで、編体が、軸方向に伸びるとともに径方向に縮径して、血管に挿入抜去可能であり、第1軸および第2軸のうちの少なくともいずれか一方が、軸方向に相対的に重なる方向に移動させられることで、編体が、軸方向に縮むとともに径方向に拡径して、血管の損傷部が覆われる。【選択図】図1
