PROBLEM TO BE SOLVED: To provide a medical electronic apparatus capable of securing waterproofness of a part that penetrates a housing by a simple configuration despite the configuration in which a flexible board is exposed outside the housing.SOLUTION: A medical electronic apparatus includes: a housing for accommodating electronic parts inside； a flexible board 70 that is inserted into a through-hole formed in the housing for electrically connecting the electronic parts inside the housing with external electronic parts outside the housing； and a bush member for blocking a gap between the inner peripheral surface of the through-hole and the flexible board 70 by being fitted into the through-hole in a state that the flexible board 70 is inserted, and elastically deforming.SELECTED DRAWING: Figure 7【課題】フレキシブル基板が筐体の外部に露出した構成であっても筐体を貫通する部分の防水性を簡単な構成で確保することができる医療用電子機器を提供する。【解決手段】内部に電子部品を収容する筐体と、筐体に形成された貫通孔を挿通して、前記筐体内部の前記電子部品と、前記筐体の外部の外部電子部品とを電気的に接続するフレキシブル基板７０と、前記フレキシブル基板７０が挿通された状態で、前記貫通孔に内嵌し、弾性変形することにより前記貫通孔の内周面と前記フレキシブル基板７０とを隙間を閉塞するブッシュ部材と、を有する医療用電子機器。【選択図】図７
