Syringe with means for allowing passage of air while preventing

Details Syringe with means for allowing passage of air while preventing Syringe with means for allowing passage of air while preventing

1982-03-18

1986-02-25

Yasko, John D.

Surgery

Truss

Pad

604190, A61B 500

Patent

active

045722102

ABSTRACT:
A syringe device for obtaining a gas-free blood sample has a tubular body connected to an hypodermic needle. The tubular body receives a resilient sealing member operatively connected to a plunger rod. The sealing member and plunger rod have a vent formed longitudinally therealong to provide a passageway for the purge of air as an interior chamber of the tubular body is filled with blood. The passageway is covered with an hydrophobic filter allowing the passage of air until such time as blood completely contacts the filter, at which time blood cannot cross the hydrophobic filter. The interior chamber containing the blood sample is then purged of all air.

REFERENCES:
patent: 1643531 (1927-09-01), Wolf
patent: 3291128 (1966-12-01), O'Neil
patent: 3656480 (1972-04-01), Rubricius
patent: 3736932 (1973-06-01), Satchell
patent: 3809298 (1974-05-01), Harris, Sr. et al.
patent: 3864979 (1975-02-01), Ayres
patent: 3886930 (1975-06-01), Ryan
patent: 3938513 (1976-02-01), Hargest
patent: 3960139 (1976-06-01), Bailey
patent: 3978846 (1976-09-01), Bailey
patent: 4008718 (1977-02-01), Pitesky
patent: 4016879 (1977-04-01), Mellor
patent: 4057052 (1977-11-01), Kaufman et al.
patent: 4206768 (1980-06-01), Bailey
patent: 4207870 (1980-06-01), Eldridge
patent: 4266558 (1981-05-01), Akhavi
patent: 4266559 (1981-05-01), Akhavi
patent: 4327745 (1982-05-01), Ford, Jr.
patent: 4340067 (1982-07-01), Rattenborg

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