Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1986-02-24
1987-08-25
Truluck, Dalton L.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604169, 604248, A61M 500
Patent
active
046890475
ABSTRACT:
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.
REFERENCES:
patent: 1944553 (1934-01-01), Freund
patent: 3630195 (1971-12-01), Santomieri
patent: 3774604 (1973-11-01), Danielson
patent: 4016879 (1977-04-01), Mellor
patent: 4311137 (1982-01-01), Gerard
patent: 4540411 (1985-09-01), Bodicky
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