| 摘要 |
PROBLEM TO BE SOLVED: To provide an indwelling needle device that enables puncture work and retraction work to be continuously performed with one hand, and prevents wrong operation of misunderstanding completion of the retraction work due to removal of a stopper.SOLUTION: An internal unit 3 is movable with respect to an external unit 2 from an initial position where an inner needle 50 projects from the distal part of an outer needle 30 to a retracted position where the inner needle is stored in a shield 20. A stopper 70 includes an insertion part 71 and a proximal part 72, and the base part includes an elastically displaceable grip part 76. When the insertion part is inserted into the shield 20 and the front end of the insertion part is brought into contact with an inner hub 40 of the internal unit present at the initial position, the proximal part is positioned outside the shield, the stopper is engaged with the shield, and the grip part faces a tube. When a force in the direction toward the tube is applied to the grip part, the engagement between the stopper and the shield is released, and the tube is gripped via the grip part.SELECTED DRAWING: Figure 1A |
