Problem to be solved: to obtain a low frequency treatment device capable of easily attaching and detaching the holder and the main body.The low frequency treatment device 1 comprises a holder 3 having an engagement portion 3j and a main body 4 detachably attached to the holder 3. The main body 4 has a case body 4A having a main body side electrode, an operation piece 4B attached to the case body 4A so as to be slidable between the engaging position and the release position, and an operation piece 4B toward the engaging position side from the side of the release position with the insertion hole 4H An urging portion 4C for urging the operating piece to move is also included.In the state in which the holder 3 is attached to the main body 4, the engaging portion 3j of the holder 3 is positioned in the insertion port 4h, and the operating piece 4b is disposed at the engaging position and engages with the engaging portion 3j. When an external force is applied to the operation piece 4b, the engagement between the operation piece 4B and the engaging portion 3j of the holder 3 is released to remove the holder 3 from the body 4.Diagram【課題】ホルダと本体とを容易に着脱可能な低周波治療器を得る。【解決手段】低周波治療器1は、係合部3Jを有するホルダ3と、ホルダ3に着脱可能に取り付けられる本体4とを備える。本体4は、本体側電極を有するケース体4Aと、差込口4Hを有し、係合位置と解除位置との間でスライド移動可能なようにケース体4Aに取り付けられた操作片4Bと、操作片4Bが解除位置の側から係合位置の側に向かって移動するように操作片を付勢する付勢部4Cとを含む。ホルダ3が本体4に取り付けられた状態では、ホルダ3の係合部3Jは差込口4Hの中に位置し、操作片4Bは係合位置に配置されて係合部3Jに係合している。操作片4Bに外力が加えられると、操作片4Bとホルダ3の係合部3Jとの間の係合状態が解除され、ホルダ3を本体4から取り外すことが可能となる。【選択図】図8
