Non-invasive estimation of arterial blood gases
US5800361A · kind A · utility
51Cited by
7References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 26, 1996 |
| Grant date | Sep 1, 1998 |
| Priority date | — |
| Expiry date | Jan 26, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0836
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A non-invasive system and procedure for deriving the blood gas content for a patient. The system measures the carbon dioxide concentration of the expiratory breath relative to volume. This data is then processed to derive arterial blood gas levels of carbon dioxide. If data sampling is in the time domain, the processing shifts the data from the time domain to the volume domain. The processing also iteratively assesses the significance of numerous variables. The resulting relationship provides a fast and accurate measure of blood gas content for both healthy and diseased lung patients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.