초록 ▼

This disclosure is directed to an improved winged catheter unit characterized by a combination of beneficial and advantageous features enabling the user to introduce intravenous (I.V.) fluids into a patient while permitting the technician to control air venting at the onset of the I.V. introduction

This disclosure is directed to an improved winged catheter unit characterized by a combination of beneficial and advantageous features enabling the user to introduce intravenous (I.V.) fluids into a patient while permitting the technician to control air venting at the onset of the I.V. introduction and during change of I.V. bottles without removal of the catheter while at the same time promoting a higher confidence level of avoidance of air embolism(s). This combination also reduces the number of venipunctures necessary to secure placement and maintenance of the needle and catheter tubing. This improved winged catheter unit is characterized by a combination comprising an integral molded deck unit having centrally located therein a tapered tubular inlet portion having a larger inner diameter opening at one end through which an I.V. needle is inserted and a smaller tapered tubular outlet portion through which said needle exits to communicate with a cannula tube surrounding said needle, a rotary or slide valve communicating within said tapered tubular portion between said tapered inlet and outlet, means to position said valve between venting and fluid flow positions while substantially avoiding air entrapment, a catheter inlet closure means adaptable for direct needle insertion of medication without additional venipuncture and at least one integral tube clip portion located on said catheter deck unit.

대표청구항 ▼

A winged catheter unit capable of being temporarily attached to a patient at a point near where an intravenous catheter injection tube is to be inserted into the patient, comprising: a catheter main body having a lower portion adapted to connect in facial contact to a patient\s body; a fluid flow co

A winged catheter unit capable of being temporarily attached to a patient at a point near where an intravenous catheter injection tube is to be inserted into the patient, comprising: a catheter main body having a lower portion adapted to connect in facial contact to a patient\s body; a fluid flow conduit means connected to said main body having an internal passageway for the passage of intravenously injected medicaments and/or the backflow of blood from said patient, said conduit means having an inlet end and an outlet end; cannula means connectable between the outlet end of said conduit means and the interior of a blood vessel; valve means interposed within and transversely to said conduit means operably positionable between an open and a closed position, said inlet end of said conduit means being fluidly connected to said cannula means when said valve is in said open position; vent means for releasing air from said cannula and conduit means when said valve means is in the closed position to avoid introducing an air embolus into said blood vessel.