MEMS fluid pump with integrated pressure sensor for dysfunction detection
US9192720B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2008 |
| Grant date | Nov 24, 2015 |
| Priority date | — |
| Expiry date | Oct 21, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B51/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention concerns a pumping device that includes a pump having a pumping chamber with a variable volume, an inlet that communicates with the pumping chamber and a valve, an outlet that communicates with the pumping chamber and a valve, and an actuator adapted to change the volume of the pumping chamber. A fluidic pathway in the pumping device includes the inlet, the pumping chamber, the outlet, and a downstream line situated downstream of the outlet valve. The pumping device also includes a pressure sensor for measuring the pressure between the valves of the pathway, and a processing means for processing the received pressure data from the pressure sensor. The invention also concerns a method for detecting a dysfunction in the pumping device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.