Hypodermic syringe
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United States of America Patent
Stats
-
Oct 6, 1987
Grant Date -
N/A
app pub date -
Nov 24, 1986
filing date -
Nov 24, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A syringe in which a first medicament is stored in an elongated barrel, adjacent its distal end, while a second medicament is stored in an exterior compartment between the distal and proximal ends in communication with the barrel. A plunger having a piston head with spaced apart sealing rings is located in the syringe barrel with the opposing sealing rings occluding the exterior compartment so as to isolate the medicaments from each other. The piston is normally locked in this position. In use, the piston is moved adjacent the proximal end of the barrel to allow the medicament in the exterior compartment to intermix with the first medicament before dispensing.
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Family
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