PURPOSE: To effectively remove an air at the time of the filling of a blood transfusing agent in executing a priming and to simplify a constitution by providing a tube member and a buldging part in the flow route of a blocking member externally fitted in the tube member, causing the buldging part to be abut on or separated from each other and plotting a route.
CONSTITUTION: In a blood pressure measuring system 10, a spot tube 14 and a flow control device 18 are connected through a tube 16, and the outlet side of the flow control device 18 and a tube fitting 22 are connected through a tube 20. At the time of the priming, a holding part 59 of a trigging means 56 provided to a blocking member 42 of the flow control device 18 is pinched by fingers, the trigging means 56 is tensed outward in resistance to the elastic springing force of the blocking member 42 itself, and thereby, a second buldging part 54 of the blocking member 42 is separated from a first buldging part 48 of a tube member 40. Consequently, the flow route to make the gap into a flash route is opened, a physiological salt water introduced from an inlet route 44 through the tube 16 are made to pass-flow in a flow rate much larger than a long groove 50 in the flash route, it is conducted through an outlet route 46 out to the tube 20, and a downstream side is filled with the physiological salt water in a short time.
TAKIZAWA TATSUZO
HIROSE FUMIHISA
