Patient monitor and method of using same
US6544192B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2001 |
| Grant date | Apr 8, 2003 |
| Priority date | — |
| Expiry date | Sep 24, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2230/432
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A patient monitoring apparatus for quantatively measuring a physiological characteristic of a patient. A first patient interface communicates with an airway of a patient such that substantially all gas inhaled and exhaled by the patient passes through the first patient interface. One or more vent elements associated with the first patient interface communicate the first patient interface with an ambient atmosphere so that a pressure differential is created between the pressure in the first patient interface and the pressure of the ambient atmosphere. A sensor communicates with the first patient interface and measures a fluid characteristic resulting from this pressure differential and outputs a first signal indicative of that characteristic. The output from the sensor is used alone, or in combination with the output from other sensors that detect other physiological characteristics, to provide a variety of information about the patient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.