Blood collection assembly having additive dispensing means

Details Blood collection assembly having additive dispensing means Blood collection assembly having additive dispensing means

1996-09-19

1998-04-14

Weiss, John G.

Surgery

Container for blood or body treating material, or means used...

604415, A61B 1900

Patent

active

057386706

ABSTRACT:
A blood collection assembly includes an evacuated container having an open end with a puncturable stopper therein. A liquid impermeable receptacle in the container contains an additive and is removably immobilized in the stopper. In a method for preparing a blood sample for analysis, the stopper is punctured by a cannula connected to a blood supply. The cannula is then advanced until it contacts and dislodges the receptacle from the stopper causing the additive to be released directly into the container where it mixes with incoming blood.

REFERENCES:
patent: 2449968 (1948-09-01), Smith
patent: 2495942 (1950-01-01), Nosik
patent: 2615448 (1952-10-01), Fields
patent: 2808053 (1957-10-01), Morris
patent: 3901219 (1975-08-01), Kay
patent: 5108386 (1992-04-01), Finneran
patent: 5511558 (1996-04-01), Shepard et al.

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