Prefilled, two-constituent syringe
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United States of America Patent
Stats
-
Jun 10, 1997
Grant Date -
N/A
app pub date -
Mar 22, 1995
filing date -
Mar 22, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A prefilled, two-constituent system is provided with a syringe barrel having a dispensing end with an inwardly directed, stationary, piercing cannula. Within the syringe barrel is a first, sealed, collapsible container holding a first constituent at subatmospheric pressure. The first container is slidably disposed within the syringe barrel adjacent the piercing cannula. A second, sealed, collapsible container holding a liquid second constituent is slidably disposed within the syringe barrel spaced from the first container. A carrier is slidably disposed within the syringe barrel between the first and second containers. The carrier has a double-ended, hollow, piercing needle with oppositely extending first and second ends for piercing the first and second containers, respectively. A plunger is slidably mounted within the syringe barrel for applying a force to the second container.
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