Capacitive pressure sensor assembly
US8397578B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2010 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | Jun 8, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53265
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The disclosure is directed to a capacitive pressure sensor, and the assembly of a capacitive pressure sensor, that may be used within an implantable medical pump. In one example, a housing ferrule that encloses one capacitive plate and includes at least one protrusion for attaching a support structure of the capacitive plate. The at least one protrusion defines a smaller inner diameter as a reference point for securing the support structure while the ferrule provides a larger inner diameter to allow the support structure to tilt inside the ferrule to orient the capacitive plate into a desired plane. Despite manufacturing irregularities, the capacitive plate can be mounted in the desired plane parallel to another capacitive plate, a diaphragm, mounted to an edge of the ferrule. In another example, an assembly tool provides a stage to orient the capacitive plate and support structure within the ferrule at a desired depth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.