Injector head for medical use
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United States of America Patent
Stats
-
Oct 19, 1999
Grant Date -
N/A
app pub date -
Mar 5, 1998
filing date -
Mar 5, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An injector head for medical use is provided with a position plate serving as both the position plate and a nut, placed at a rear end portion of a plunger, as well as a screw axis engaging with the position plate. A mechanical stopper which can slide only in a direction of an axis of the plunger is provided to the plunger. A female thread is formed on the surface of the mechanical stopper. A main body portion is provided which accommodates the mechanical stopper, the plunger, and the position plate and has a male thread formed on its inner surface and screwed together with the female thread. By utilizing this structure, an injector head for medical use can be provided which is scaled down and simplified while keeping its mechanical safety mechanism.
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