Respirator and method for calibrating flow rate measuring component thereof
US8776791B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2007 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | Aug 16, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/702
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A respiration apparatus and a method for calibrating respiration parameters thereof are provided. A flow measuring reference component arranged behind the inspiratory valve in the ventilator is used as a flow measuring reference sensor for calibrating the flow sensor so that the flow rates of the gas through the flow measuring reference component and the flow sensor to be calibrated are identical or in a corresponding relation. Electrical parameters output from the flow sensor and the flow measuring reference component are respectively acquired and processed to obtain a relation curve of the gas flow rate and the electrical parameter of the flow sensor on the basis of the read gas flow rate and the electrical parameters of the flow sensor. The present invention enables automatic calibration for a flow sensor without using any measuring instrument.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.