PROBLEM TO BE SOLVED: To provide a technique capable of controlling the production of dissolved hydrogen water according to hydrogen delivered to a patient's body in hemodialysis treatment using dissolved hydrogen water. SOLUTION: A dissolved hydrogen water generator 1 is an apparatus for generating dissolved hydrogen water in which hydrogen is dissolved in water. The dissolved hydrogen water generator 1 detects hydrogen gas contained in the exhaled breath of a patient undergoing dialysis using a hydrogen water generator 3 for generating dissolved hydrogen water and a dialysate prepared with the dissolved hydrogen water. A detection unit for detecting hydrogen gas contained in the exhaled breath of the patient H during dialysis, and a control unit for controlling the hydrogen water generation unit 3 based on the detection result of the detection unit 12. 13 and. [Selection diagram] Fig. 1【課題】溶存水素水を用いた血液透析治療において、患者の体内に届けられた水素に応じて溶存水素水の生成を制御できる技術を提供する。【解決手段】溶存水素水生成装置１は、水に水素が溶け込んだ溶存水素水を生成するための装置である。溶存水素水生成装置１は、溶存水素水を生成するための水素水生成部３と、溶存水素水で調製された透析液を用いて透析を受けている患者の呼気に含まれる水素ガスを検出するための検出部と透析中の患者Ｈの呼気に含まれる水素ガスを検出するための検出部１２と、検出部１２の検出結果に基づいて、水素水生成部３を制御するための制御部１３とを備える。【選択図】図１
