Non-invasive estimation of arterial blood gases
US5632281A · kind A · utility
94Cited by
7References
21Claims
0Family size
Inventor
Key dates
| Filing date | Feb 6, 1995 |
| Grant date | May 27, 1997 |
| Priority date | — |
| Expiry date | Feb 6, 2015 |
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 volume and carbon dioxide concentration of the expiratory breath and discerns breath volumetric rate and gas content. This data is then processed to derive arterial blood gas levels of carbon dioxide. The processing shifts from the time to the volume domain and 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.