发明名称 |
METERING VALVE FOR A METERED DOSE INHALER PROVIDING CONSISTENT DELIVERY |
摘要 |
The present invention relates to a novel design for a metering valve that provides improved consistency of formulation delivery. Generally, the metering valve includes (a) a valve stem that generally defines a longitudinal axis and includes a body portion having a metering surface, wherein the longitudinal axis and a plane tangential to at least a portion of the metering surface define an angle from about 2° to about 90°; and (b) a valve body having an internal chamber defined at least in part by the body wall and includes a metering portion configured to substantially conform to the metering surface of the valve stem.
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申请公布号 |
US2008047556(A1) |
申请公布日期 |
2008.02.28 |
申请号 |
US20070931647 |
申请日期 |
2007.10.31 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
HODSON PETER D. |
分类号 |
A62B9/02;B65D83/44;A61M11/00;A61M15/00;A61M16/20;B05B9/04;B65D83/14 |
主分类号 |
A62B9/02 |
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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