This medical device is provided with: a urethral insertion member (800) and a vaginal insertion member (900) which are inserted, respectively, into the urethra (100) and vagina (200) where these are adjacent to one another through biological tissue (700) a puncture needle (31) which is movably arranged and which passes through the biological tissue (700) between the urethra (100) and the vagina (200) a support member (20) which movably supports the puncture needle (31) and which supports the urethral insertion member (800) and the vaginal insertion member (900) a separation unit (42) which, when the puncture needle (31) moves, separates the biological tissue (700) accompanying said movement and a limiting mechanism (7) which imposes limits such that the direction in which the separation unit (42) separates the biological tissue (700) is constant with respect to the urethral insertion member (800) and the vaginal insertion member (900).Linvention concerne un dispositif médical présentant : un élément dinsertion urétral (800) et un élément dinsertion vaginal (900) qui sont insérés respectivement dans lurètre (100) et le vagin (200) où ils sont adjacents lun à lautre via du tissu biologique (700) une aiguille de ponction (31) qui est disposée de manière mobile et qui passe au travers du tissu biologique (700) entre lurètre (100) et le vagin (200) un élément support (20) qui supporte de manière mobile laiguille de ponction (31) et qui supporte lélément dinsertion urétral (800) et lélément dinsertion vaginal (900) une unité de séparation (42) qui, lorsque laiguille de ponction (31) se déplace, sépare le tissu biologique (700) en accompagnant ledit mouvement et un mécanisme de limitation (7) qui impose des limites telles que la direction dans laquelle lunité de séparation (42) sépare le tissu biologique (700) est constante par rapport à lélément dinsertion urétral (800) et lélément dinsertion vaginal (900).医療用具1は、生体組織700を介して互いに隣接する尿道100および膣200にそれぞれ挿入される尿道挿入部材800および膣挿入