Liquid administration device
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United States of America Patent
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Mar 20, 2018
Grant Date -
Jul 9, 2015
app pub date -
Mar 18, 2015
filing date -
Jan 15, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A liquid administration device includes an inner structure that includes a cylindrical body that has a bottom part in a distal portion thereof and an opening portion in a proximal portion thereof, a needle tube that is mounted in the distal portion of the cylindrical body and has a sharp needle tip at a distal end and a proximal end of which is communicatable with an inside of the cylindrical body, and a gasket that is located in the cylindrical body; an operation member that includes a plunger, the operation member being configured to perform a pressing operation in which the plunger is moved relative to the cylindrical body in a distal direction while being pressed; an engagement portion that includes: a first engagement portion and a second engagement portion.
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