Bloodless insertion catheter assembly

摘要

A catheter assembly having a catheter of flexible plastic tubing secured at one end to a catheter hub, a hollow adaptor body with a distal end for fluid tight connection to the catheter hub and in fluid communication therewith. The proximal end of the adaptor body includes a self closing elastomeric gasket valve member. An introducer needle is provided proportioned to extend through the catheter, hub and tubing for penetration of a patient's vein for introducing the catheter into the vein. The proximal end of the needle is secured to a plastic collar having proximal and distal ends and dogs at the proximal end for limiting slidable movement within a hollow cylindrical container. A sealable gasket closure at the distal end of the container safely encloses the needle within the container upon withdrawal of the needle. The assembly further includes a curved plastic transparent tube having a filter valve therein extending from the proximal end of the collar for sighting flashback. The valve allows air flow but prevents fluid flow. An adaptor unit connects to the hub, the adaptor unit having a hollow shaft with a sharp end, and ports on its side walls. The shaft is proportioned to pierce said gasket valve member in the adaptor body to place the adaptor body and the adaptor unit in flow communication.