Abstract: A catheter introduction syringe for the introduction of a catheter or catheter guide wire into a patient's body, the catheter introduction syringe comprises a hollow syringe barrel including a fluid chamber, a plunger movable between an advanced and retracted position slidably disposed within the fluid chamber, a guide passage formed longitudinally through the hollow syringe barrel and the plunger, the guide passage including an aperture disposed within the fluid chamber and a valve assembly disposed in operative relationship relative to the guide passage to prevent passage of fluid through the guide passage during flushing or aspirating of the catheter introduction syringe or during the introduction or withdrawal of a catheter or catheter guide wire through the guide passage and to permit fluid to flow from the patient's body into the fluid chamber through the aperture the guide passage being configured to maintain the catheter or catheter guide wire in a substantially straight configuration while the cathet

Abstract: A catheter introduction syringe for the introduction of a catheter or catheter guide wire into a patient's body, the catheter introduction syringe comprises a hollow substantially cylindrical syringe barrel to support a needle thereon having a substantially cylindrical plunger slidably disposed therein, the substantially cylindrical plunger includes a centrally disposed channel formed longitudinally therethrough having a valve assembly disposed in operative relationship relative to the centrally disposed channel to prevent passage of air or liquid therethrough during flushing or aspirating of the catheter introduction syringe and permit the introduction of a catheter or catheter guide wire through the centrally disposed channel, hollow substantially cylindrical syringe barrel and needle for introduction into the patient's body without the flow of air or liquid through the centrally disposed channel.

Abstract: A needle specifically configured to enhance membrane penetration comprising an inner solid substantially cylindrical body including a longitudinally disposed fluid aspiration channel formed in the upper surface thereof and an outer penetration tip formed on the outer portion of the inner solid substantially cylindricla body, the penetration tip including a longitudinally disposed concave fluid recess extending between a penetration point formed on outer end thereof and the upper surface of the inner solid substantially cylindrical body rearward of the outermost end of the longitudinally disposed fluid aspiration channel and a pair of planar surfaces formed on opposite sides of the penetration tip and the solid substantially cylindrical body, the pair of planar surfaces converging forwardly to the penetration point and diverging upwardly to the outer portion of the longitudinally disposed concave fluid recess to intersect a pair of arcuate cutting edges diverging upwardly and rearwardly from the penetration po