| 主权项 |
1. A safety catheter insertion assembly, comprising:
a catheter tube having a distal end for insertion into an insertion site on a subject, a proximal end and a wall defining a lumen extending therebetween; a catheter hub operably coupled to the proximal end of the catheter tube; a needle housing; an insertion needle having a sharp distal tip and a proximal end; and a needle hub fixedly coupled to the proximal end of the insertion needle and slideably coupled to the needle housing, the needle hub moveable between a first position, wherein the insertion needle extends from the needle housing and is positioned coaxially within the lumen of the catheter, and a second position, wherein the insertion needle is withdrawn from the catheter tube, and the sharp distal tip is housed within the needle housing; wherein the needle housing includes a catheter hub coupling means for coupling the catheter hub to the needle housing in the first position and for releasing the catheter hub from the needle housing in the second position, and a needle hub interlock means for interlocking the needle hub to the needle housing in the second position. |
