PROBLEM TO BE SOLVED: To provide a catheter assembly in which a catheter can be smoothly inserted in the blood vessel without causing discomfort and a catheter hub can be easily removed from a housing.SOLUTION: A catheter assembly 10A includes: a housing 18 which supports an inner needle 16 and in which a catheter hub 14 is disposed in an initial state that an end of the inner needle 16 protrudes from an end of the catheter 12 and a support member 27 supporting the catheter 12. The support member 27 is provided for the housing 18 in the way that the catheter can be switched to a lock state in which to keep supporting the catheter 12 and an unlock state that removal of the catheter hub 14 from the housing 18 is allowed when the catheter 12 advances to the end side with respect to the inner needle 16.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】カテーテルを血管内に違和感なく円滑に挿入することができ、且つカテーテルハブをハウジングから容易に離脱させることができるカテーテル組立体を提供する。【解決手段】カテーテル組立体10Aは、内針16を支持し、カテーテル12の先端から内針16の先端が突出した初期状態でカテーテルハブ14が配設されるハウジング18と、カテーテル12を支持する支持部材27とを備える。支持部材27は、カテーテル12が内針16に対して先端側に進出する際にカテーテル12の支持を維持するロック状態とカテーテルハブ14のハウジング18からの離脱を許容するアンロック状態とに切り替え可能にハウジング18に設けられている。【選択図】図1
