Medium dispenser
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United States of America Patent
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-
Apr 9, 2002
Grant Date -
N/A
app pub date -
Aug 3, 1999
filing date -
Feb 8, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
For discharging a medium, such as a powder, a film/foil seal (16) of a reservoir chamber (24) is pierced by a tool (40) in a first axial movement, after which the medium is suctioned via an orifice (9) in feeding a delivery flow via passageways (55) from the chamber (24). On completion of a return stroke and twisting the tool (40) relative to the reservoir body (6) a further chamber (24) may be emptied in the same way, thus enabling e.g. a pharmaceutical active substance to be administered in two individual doses as expedient for nasal treatment.
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