Pressure transducer
US4679567A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 1986 |
| Grant date | Jul 14, 1987 |
| Priority date | — |
| Expiry date | Feb 4, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0247
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Physiologic pressure transducers convert an applied pressure (e.g., blood pressure) into an electric signal, which can be displayed by a monitor as a numerical value or continuous waveform. While reusable pressure transducers have been used for a number of years, innovations in solid-state technology have made disposable transducers feasible. In particular, disposal transducers which are impedance matched for use with monitors formally used for reusable transducers are disclosed. The pressure transducer is rugged due to the careful mounting of the transducer diaphragm and integral compensation circuitry. In addition, the geometric configuration of the flow path is uniform such that debubbling of the unit is easy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.