| 摘要 |
PROBLEM TO BE SOLVED: To prevent a transfusion tube once fitted into a tube mounting groove from coming off the tube mounting groove unless someone tries to remove intentionally by providing a tube holding means that advances and withdraws at a prescribed angle with a housing. SOLUTION: When mounting a transfusion tube 5, when the transfusion tube 5 is forced into a clearance between tube holding plates 4a and 4b after mounting the transfusion tube 5 into a tube mounting groove, the tube holding plates 4a and 4b are pushed down by the deflection of springs 4c and 4d engaging with the tube holding plates 4a and 4b at one end, the width W of an opening 4e at the head is increased, and the transfusion tube 5 is inserted into the tube holding means 4. When the transfusion tube 5 has been inserted completely, the tube holding plates 4a and 4b decrease the width W of the opening 4e by the restoring force of the springs 4c and 4d, whereby the transfusion tube 5 once inserted into the tube holding means 4 does not come off the tube mounting groove unless someone intentionally pulls out. |
