Catheter Placement Device Including a Mechanical Advantage Mechanism

A catheter insertion device assembly, comprising:

• a catheter including a catheter tube defining a catheter lumen extending between a catheter distal end and a catheter hub at a catheter proximal end, the catheter hub disposed within a housing;
• a needle configured for insertion into a patient between a skin surface and a blood vessel, the needle defining a needle lumen extending between a needle distal end and a needle proximal end coupled with the housing, wherein the needle is pre-disposed within the catheter lumen such that the needle distal end extends beyond the catheter distal end and the needle proximal end extends proximally beyond the catheter hub;
• a guidewire extending between a guidewire distal end and a guidewire proximal portion, wherein the guidewire is pre-disposed within the needle lumen such that the guidewire distal end is positioned proximal the needle distal end and the guidewire proximal portion extends proximally beyond the needle proximal end;
• and
• a slide displaceable along an exterior of the housing, the slide coupled with the guidewire proximal portion such that a displacement of the slide causes a displacement of the guidewire;
• and
• a mechanical advantage mechanism coupled between the slide and the catheter hub such that:
• the slide provides an input force to the mechanical advantage mechanism, and
• the mechanical advantage mechanism provides an output force to the catheter hub in response to the input force, the output force greater than the input force.