发明名称 |
Shape memory alloy wire driven positive displacement micropump with pulsatile output |
摘要 |
Apparatuses and methods for pumping fluid are disclosed. An exemplary apparatus is a miniature pump that includes a shape memory wire that obtains a plastic condition below a transformation temperature and has a memorized shape such that the shape memory wire produces a work stroke by returning to the memorize shape at least at the transformation temperature. A spring biased against the shape memory wire is deflected by the work stroke to deform the shape memory wire from the memorized shape below the transformation temperature. A fluid pump is coupled to the shape memory wire and driven by the biased spring and shape memory wire to produce a fluid flow. The miniature pump can be incorporated into a self-contained infusion device in the form of a compact self-adhesive patch including a fluid reservoir, control electronics and power supply that is place directly at the infusion site of a user.
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申请公布号 |
US2003198558(A1) |
申请公布日期 |
2003.10.23 |
申请号 |
US20020127094 |
申请日期 |
2002.04.22 |
申请人 |
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发明人 |
NASON CLYDE K.;STUTZ WILLIAM H.;YAP DARREN Y. |
分类号 |
A61M5/142;F04B17/00;F04B19/00;(IPC1-7):F04B1/00 |
主分类号 |
A61M5/142 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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