Drug delivery device
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United States of America Patent
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Aug 12, 2014
Grant Date -
Jun 9, 2011
app pub date -
Aug 2, 2010
filing date -
Dec 3, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A drug delivery device mainly has a housing, which can be easily held and operated. The housing has one end formed with an adjustment seat capable of adjusting a range distance, and the other end connected to a gas pressure control source for providing mainstream and substream gas pressures. Disposed in the housing are a drug delivery pressuring tube, an embedded drug-can connecting seat or an external drug-can connecting seat, a replaceable drug-can container and a gas communication tube. According to this design, the minor liquid drug can be controlled, the drug-can can be replaced and the continuous quantitative injection of drug can be made. Also, all damaged or dirty members of the invention may be disassembled, cleaned or replaced.
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