Injection devices
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United States of America Patent
Stats
-
Feb 4, 1997
Grant Date -
N/A
app pub date -
Sep 25, 1995
filing date -
Mar 24, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An injection device holds a syringe in the form of a capsule having a needle projecting from its forward end and a plunger extending from its rear end. The rear end of the plunger received in the drive member, which, when released, is urged forward by a coil spring, thus projecting the needle and expressing the dose. The drive member is held captive in its rearward primed position by a detent provided by the body of the device. A sleeve covering a substantial part of the body can shift longitudinally of it from an initial rearward position to a forward position in which it either disengages the drive member from the detent, or in which a trigger is freed from actuation to release the drive member.
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