Capnometer
US5738106A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 1996 |
| Grant date | Apr 14, 1998 |
| Priority date | — |
| Expiry date | Feb 23, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7415
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The capnometer of the invention is an equipment which detects a signal which time-varies in accordance with a carbon dioxide concentration from a respiration gas, thereby calculating the carbon dioxide concentration. The capnometer has: carbon dioxide concentration calculating device for detecting the maximum value for each expiration from a concentration signal corresponding to the calculated carbon dioxide concentration, for comparing the maximum value with concentration signals respectively corresponding to a plurality of predetermined concentration ranges, and for outputting one of different control signals for the concentration ranges; and reporting device for outputting a sound corresponding to the carbon dioxide concentration, in accordance with the control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.