PROBLEM TO BE SOLVED: To provide a medical valve having a novel structure which prevents the fallout of an elastic valve element at the time of inserting or ejecting a male connector.SOLUTION: While on both inner and outer surfaces of an outer peripheral part of an elastic valve element 38 are formed annular grooves 54 and 56 each of which extends in a circumferential direction, and a valve striker plate 68 is formed in an opening member, an annular ring 42 is assembled and fixed to the opening member from the opening side. On the valve striker plate 68 and the annular ring 42 are formed engagement protrusion sections 70 and 80 which can be engaged with the annular grooves 54 and 56 formed on both inner and outer surfaces of the elastic valve element 38. The engagement protrusion sections 70 and 80 are engaged with the annular grooves 54 and 56 formed on both inner and outer surfaces of the elastic valve element 38, and the engagement protrusion section 80 on the annular ring 42 has a plurality of protrusion shapes which are parted in a circumferential direction.COPYRIGHT: (C)2014,JPO&INPIT【課題】雄コネクタの着脱に際しての弾性弁体の脱落の問題を防止する、新規な構造の医療用弁を提供すること。【解決手段】弾性弁体38の外周部分の内外両面においてそれぞれ周方向に延びる環状溝54,56が形成され、開口部材には弁受座68が形成されているとともに、開口部材に対して開口部側から環状リング42が組みつけられて固着されており、弁受座68と環状リング42には弾性弁体38の内外両面に形成された環状溝54,56と係止可能な係止突部70,80が形成されて、これら係止突部70,80が弾性弁体38の内外両面に形成された環状溝54,56と係止されており、環状リング42における係止突部80は周方向で分断された複数の突起形状を有している。【選択図】図4
