Injection device with dose display for signaling the end of the injection
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United States of America Patent
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Aug 29, 2017
Grant Date -
May 14, 2015
app pub date -
Jan 16, 2015
filing date -
Aug 1, 2012
priority date (Note) -
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Abstract
Drive and metering devices for injection devices include a dose display element with a helical dosage scale; an indicating means; a metering member, which can be rotated relative to the indicating means for dose setting; a discharge spring and an advancement member. The dose display element can be screwed relative to the indicating means about a longitudinal axis (L) and a value on the dose scale can be read via the indicating means corresponding to the set dose. The discharge spring causes the advancement member to discharge the product as it moves an overall discharge stroke length (Hg), where the overall discharge stroke length (Hg) comprises a first partial discharge stroke length (H1), during which the dose display element is rotationally secured in relation to the indicating means and where the dose display element can be rotated relative to the indicating means following the first partial discharge stroke length (H1).
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