MEDICAL VALVE

• Main Authors: SUZUKI MASARU, HIEJIMA NORIHIRO, MATSUMOTO KUNIAKI, ISHIZAKI AKIHIKO
• Format: Patent
• Language: English; Japanese
• Published: 09.08.2018
• Subjects: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE

PROBLEM TO BE SOLVED: To provide a medical valve with a novel structure which prevents stagnation of fluid such as medicinal solution and improves the durability of a valve body.SOLUTION: A disk-shaped elastic valve body 38 is arranged with respect to an opening member constituting an opening part of a fluid flow passage by causing engaging protrusion parts 70, 80 to engage with annular grooves 54, 56 provided on an outer peripheral part of the elastic valve body 38. An annular fixing part 46 of the elastic valve body 38, provided on an outer peripheral side of the annular grooves 54, 56, is fixedly supported by the opening member. On the other hand, a recessed groove part opening toward an inner surface of the elastic valve body 38 is formed. Insertion resistance of a male connector 104 into a slit 48 is reduced by allowing elastic deformation of an inner surface shape of the recessed groove part when the male connector 104 is inserted into the slit 48.SELECTED DRAWING: Figure 14 【課題】薬液等の流体の滞留を防止出来ると共に、弁体の耐久性が向上される、新規な構造の医療用弁を提供すること。【解決手段】ディスク形状の弾性弁体３８の外周部分に設けた環状溝５４，５６に対して係止突部７０，８０を係止させることで、流体流路の開口部分を構成する開口部材に対して弾性弁体３８が配設されるようになっており、環状溝５４，５６よりも外周側に設けられた弾性弁体３８の環状固定部４６が開口部材によって固定的に支持されている一方、弾性弁体３８の内面に向かって開口して凹溝部が形成されており、雄コネクタ１０４がスリット４８に挿し入れられた際に凹溝部の内面形状の弾性変形が許容されることで雄コネクタ１０４のスリット４８への差し入れ抵抗が小さくされるようにした。【選択図】図１４