Chick valve for controlling a fluid flow in a fluid line of a medical instrument

摘要

The invention relates to a plug valve (10) for controlling a fluid flow in a fluid line of a medical instrument, comprising a housing (12) penetrated by a channel (14), the channel (14) being arranged inside the housing (12) at two outlet points (22 ) breaks a seat surface of a conical seat (16) incorporated in the housing (12), a conical plug (18) rotatably mounted in the conical seat (16) having a passage (20), the conical plug (18) in an open and a closed position is rotatable, such that the passage (20) in the open position of the conical bar (18) connects the two mouth points (22) of the channel (14) communicating and that the channel (14) in the closed position of the conical bar (18) of a Wall of the conical bar (18) is blocked, and further comprising a through an opening (24) of the housing (12) in the tapered bottom portion of the conical seat (16) passing through holding member (32) releasably connected to a connected to the housing (12) spring unit (28) is connected, wherein the spring unit (28) pulls the conical chuck (18) on the holding element (32) spring biased in the conical seat (16), wherein as releasable connection between the holding element (32) and spring unit (28) a screw connection is provided, and wherein a thread provided for the screw connection in a body part of the spring unit (28) is formed from a thread-wound threaded wire (36).