发明名称 |
Reciprocating pump for a medication administering device |
摘要 |
A reciprocating pump having a fluid assembly having a fluid wing at its input side encompassing an admission line and an admission chamber. A moveable valve part of, for example, a magnetizable material is arranged in the admission chamber. A component part, for example a permanent magnet, which attracts the valve part against a valve seal is situated outside of the fluid wing. The valve part and the component part together form a magnetic spring system. An advantage of this arrangement is an extremely small dead spacing inside the fluid wing. Resulting therefrom is that gas bubbles can also be conveyed with great reliability. Also harmful interaction between the conveyed medication and the component part such as, for example, corrosion of the component part or conversions of the medication influenced by the component part, cannot occur.
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申请公布号 |
US4808089(A) |
申请公布日期 |
1989.02.28 |
申请号 |
US19870091721 |
申请日期 |
1987.09.01 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
BUCHHOLTZ, GERHARD;FICKWEILER, WERNER;OBERMANN, PETER |
分类号 |
A61M5/142;F04B53/10;(IPC1-7):F04B17/04 |
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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