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公开(公告)号：US20180228965A1
公开(公告)日：2018-08-16
申请号：US15749200
申请日：2016-07-28
发明人： Xiaojun HE
CPC分类号： A61M5/1454 , A61M5/14248 , A61M5/152 , A61M5/158 , A61M5/16804 , A61M5/315
摘要： The disclosure discloses a drug syringe. The drug syringe comprises: a drug container (10) defining a space and a piston (20) arranged in the space. A drug chamber (30) for accommodating a drug may be formed on a side of the piston in the space; and a constant force providing device (40) is arranged on an opposite side of the piston (20) for providing a thrust to the piston (20), pushing the piston (20) to move along an extension direction of the space, and pushing out the drug in the drug chamber (30) by changing a volume of the drug chamber (30).
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公开(公告)号：US20180221568A1
公开(公告)日：2018-08-09
申请号：US15750052
申请日：2016-07-28
发明人： Xiaojun HE
CPC分类号： A61M5/1452 , A61J1/2096 , A61M5/1422 , A61M5/14244 , A61M5/145 , A61M5/1454 , A61M5/14593 , A61M5/148 , A61M5/16809 , A61M2005/14573
摘要： An injection device comprises: a drug storer having a first space for storing a drug; a unidirectional switch having a second space in fluid communication with the first space; and an injection body having a third space in fluid communication with the second space, wherein the third space is provided with a piston adapted to move along the injection body, and to pump the drug stored in the first space into the third space. The drug storer comprises a base and a head cover, and at least one of the base and the head cover is formed by a flexible film, thereby forming the first space for storing a drug.
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