PROBLEM TO BE SOLVED: To provide an implant type lead having improved tensile strength of a conductive wire. A connector (19) is provided which is connected to a conductive wire (39a, 39b, 39c, 40) and an implantable medical device, and is along an axis (C) along a longitudinal axis (A) of the connector (19). A tension wire is applied to the conductive wire (39a, 39b, 39c, 40), which extends from the part 31 along the axis C and has at least one member (307, 313) having a deflection wall 313a. Sometimes, the deflection wall 313a of the strain relief device 300 interrupts the conductive wires (39a, 39b, 39c, 40) by a method in which the deflection wall 313a of the strain relief device 300 disconnects the conductive wires (39a, 39b, 39c, 40). Deflection and deflection wall 313a extends along an axis P that is misaligned with the longitudinal axis C of strain relief 300. [Selection diagram] Fig. 3【課題】導引性ワイヤの引張強度が改善されたインプラント型リードを提供する。【解決手段】導電性ワイヤ（３９ａ、３９ｂ、３９ｃ、４０）とインプラント型医療装置に接続されるコネクタ１９を備え、コネクタ１９の長手方向軸Ａに沿った軸Ｃに沿っておりコネクタ１９の一端部３１から軸Ｃに沿って延在し、かつ偏向壁３１３ａを有する少なくとも1つの部材（３０７、３１３）を備え、かつ導電性ワイヤ（３９ａ、３９ｂ、３９ｃ、４０）に張力の応力が加わったときに張力緩和装置３００の偏向壁３１３ａが導電性ワイヤ（３９ａ、３９ｂ、３９ｃ、４０）を遮断する方法で張力緩和装置３００の偏向壁３１３ａが導電性ワイヤ（３９ａ、３９ｂ、３９ｃ、４０）を偏向し、偏向壁３１３ａは張力緩和装置３００の長手方向軸Ｃと不整合である軸Ｐに沿って延在する。【選択図】図３
