美國
US 12,697,431 B2
Split piston metering pump
US 12,697,431 B2 是美國專利商標局(USPTO)的核准專利,日期 2026-08-04。申請人:Becton, Dickinson and Company。PDF 可在本頁下載,未登入每天最多 5 篇。
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- 申請人
- Becton, Dickinson and Company
- 發明人
- Kenneth Focht; Joseph Gordon; Matthew J. Perry; Justin Fisk
- 公開日
- 2026-08-04
- 申請日
- 2023-10-02
- 文件種類
- B2 核准公告
- 也寫作
- US 12,697,431 B2 · US12697431 · 12697431
摘要
A micropump according to the invention uses axially oriented pistons to define a pump volume. Translating the pistons axially with respect to each other within a pump housing draws a metered amount of fluid into the pump volume from a reservoir port for delivery to a cannula port when the space is collapsed. Radially situated seals on the pistons cooperate with the axial movement to close off and open the cannula port and the reservoir port respectively at different positions of the piston stroke.
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專利局網站: 美國專利商標局(USPTO)