Stopper for specimen container

Details Stopper for specimen container Stopper for specimen container

1975-04-09

1976-08-17

Lowrance, George E.

Bottles and jars

Closures

Self-sealing, piercable-type closure

215DIG3, B65D 4736

Patent

active

039749304

ABSTRACT:
A stopper which is particularly adaptable to be mounted in an evacuated tube, for example, of the type employed in fluid collection procedures such as the sampling of blood under vacuum. The stopper is designed with a central shaft and a membrane located intermediate the ends of the central shaft. A part of the shaft above the membrane is narrowed upwardly to facilitate retention of a drop of fluid such as blood displaced from the tip of a needle as it is removed from the stopper after the collection procedure.

REFERENCES:
patent: 2334905 (1943-11-01), Cherkin
patent: 3106206 (1963-10-01), Barr, Sr. et al.
patent: 3313439 (1967-04-01), Robinson
patent: 3330282 (1967-07-01), Visser et al.
patent: 3460702 (1969-08-01), Andrews
patent: 3653528 (1972-04-01), Wimmer

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