INJECTOR WITH VARIABLE DOSAGE
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United States of America Patent
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app pub date -
Sep 1, 2016
filing date -
Sep 1, 2016
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Abstract
Drug delivery devices of a standard size are adapted for injecting different doses. The device comprises an injection needle, a reservoir having an available volume, and a plunger for evacuating the volume into the needle for injection. A spacer is placed with the plunger in the reservoir to take up some of the available volume and leave a residual amount of available volume in the reservoir to correspond to a currently desired dose size. The spacer may be selected from different sizes corresponding to different doses.
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