PROBLEM TO BE SOLVED: To provide a medical tubular instrument which reduces a cost, facilitates selection work of the medical tubular instrument in a pre-surgery conference and a preparation of surgery, suppresses a decrease in efficiency of the surgery and the treatment, and can obtain an optimal shape on the site during the surgery and the treatment.SOLUTION: A medical tubular instrument 1 is formed into a tubular shape and is equipped with a tubular member 2 having at least a part on a distal end side that is inserted into the inside of a body. The tubular member 2 is formed of a shape memory alloy. A shape recovery temperature of the shape memory alloy constituting the tubular member 2 is higher than a temperature of human beings. The tubular member 2 is deformable into an arbitrary shape in a thermally neutral environment and has plasticity in the thermally neutral environment.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】コストを低減すること、事前カンファレンスでの医療用管状器具の選定作業および手術の準備を容易にすること、手術や治療の効率の低下を抑制すること、および、手術中や治療中に現場で最適形状を得ることが可能な医療用管状器具を提供する。【解決手段】医療用管状器具1は、管状に形成されるとともに少なくとも先端側の一部が体内に挿入される管状部材2を備えており、管状部材2は、形状記憶合金で形成されている。管状部材2を構成する形状記憶合金の形状回復温度は、人間の体温よりも高くなっており、管状部材2は、常温環境下で任意の形状に変形可能となっているとともに、常温環境下で可塑性を有している。【選択図】図1
