Medicament vial safety cap

Details Medicament vial safety cap Medicament vial safety cap

1987-07-13

1989-03-28

Marcus, Stephen

Bottles and jars

Closures

Self-sealing, piercable-type closure

215DIG3, B65D 4100

Patent

active

048156191

ABSTRACT:
A medicament vial safety cap which may be formed integrally at the time of manufacture of the medicament vial or added as an accessory to an existing conventional medicament vial allows an equalization of pressure to occur within a chamber adjacent to the stopper of the vial so that aerosolization of medicaments does not occur as a hypodermic needle is inserted or withdrawn from the vial. A hydrophobic filter, communicating between the vial safety chamber and the ambient, allows the pressure equalization to occur while trapping molecules of medicament inside the chamber.

REFERENCES:
patent: 744617 (1903-11-01), Ritsert
patent: 1189465 (1916-07-01), Mayo
patent: 2061958 (1936-11-01), Chapman
patent: 2186888 (1940-01-01), Tullar et al.
patent: 2186908 (1939-02-01), Page et al.
patent: 3778971 (1973-12-01), Granger et al.
patent: 4031891 (1977-06-01), Jess
patent: 4223695 (1980-09-01), Muetterties
patent: 4298358 (1981-11-01), Ruschke
patent: 4671331 (1987-06-01), Pruden

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