Volumetric measurement of a body cavity of a patient
US5146922A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 1991 |
| Grant date | Sep 15, 1992 |
| Priority date | — |
| Expiry date | Apr 15, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F17/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of volumetric measurement of a first closed space of unknown volume which comprises communicating the first space with a second closed space of known volume, changing the known volume of the second space by a predetermined amount, obtaining representations of the pressures in the spaces respectively with the second space at its original known volume and its changed volume, and determining a measure of the unknown volume of the first space from the known volume, the volume change and pressure representations. The method is preferably applied to medical usage for diagnostic purposes with the first space being a body cavity, such as the nasal airway for which a small volume correlates with predisposition to glue ear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.