Method and device for determining a volume related to the lungs of a patient
US8663127B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2005 |
| Grant date | Mar 4, 2014 |
| Priority date | — |
| Expiry date | Oct 16, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0813
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device is directly or indirectly connectable to a patient for determining a volume related to the lungs of the patient. The device has an inspiration part through which a breathing gas passes towards the patient, and an expiration part through which the breathing gas passes away from the patient. The inspiration part has a mouthpiece for introducing a change of the gas composition in the breathing gas. The device implements a method for determining the volume with a detector being arranged in the expiration part that measures a measuring parameter which is dependent on the change in the gas composition, and with a calculation unit connected to the detector unit that determines the variation in the measuring parameter, and determines the volume from the determined variation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.