| 摘要 |
The invention relates a safety IV catheter assembly 10 comprising a catheter tube 26 having a distal end 30 and a proximal end 28; a catheter hub 24 having a distal end 30 and a proximal end 28; a needle 14 extending through the catheter hub 24 and the catheter tube 26 having opposite proximal 28 and distal ends 30 defining an axial direction A, wherein the proximal end 28 is joined to the needle hub 20 and the distal end 30 forms a needle tip 18 and a change in profile 34 is provided between the proximal 28 and distal 30 ends of the needle; and a tip protector assembly 12 being arranged movably on the needle 14 in-between the catheter hub 24 and needle hub 20 outside the catheter hub 24 in an arrangement engaging with one or more second locking means 54 provided on the catheter hub 24 in its ready position, wherein the first arm 46 is deflected radially outwards by the needle 14 against a restoring force, wherein the tip protector assembly 12 is configured to entrap the needle tip 18 upon withdrawal of the needle 14 from the catheter hub 24. |
