United States
US 12,697,431 B2
Split piston metering pump
US 12,697,431 B2 is a granted patent from the United States Patent and Trademark Office (USPTO), dated 2026-08-04. Applicant: Becton, Dickinson and Company. Its PDF downloads from this page without an account, up to 5 a day.
- Applicant
- Becton, Dickinson and Company
- Inventors
- Kenneth Focht; Joseph Gordon; Matthew J. Perry; Justin Fisk
- Publication date
- 2026-08-04
- Filing date
- 2023-10-02
- Document type
- B2 Granted patent
- Also written as
- US 12,697,431 B2 · US12697431 · 12697431
Abstract
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.
The opening of the abstract. The full text is in the PDF.
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Patent office website: United States Patent and Trademark Office (USPTO)
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