System and method of determining whether to recalibrate a blood pressure monitor
US6852083B2 · kind B2 · utility
945Cited by
91References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2002 |
| Grant date | Feb 8, 2005 |
| Priority date | — |
| Expiry date | Jul 23, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/02133
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A monitor for determining a patient's physiological parameter includes a calibration device that provides a calibration signal indicative of an accurate measurement of the patient's physiological parameter. The monitor also includes a processor, which receives a noninvasive signal from a noninvasive sensor positioned over a blood vessel. The processor uses the calibration signal to calibrate a relationship between the noninvasive signal and a property of the physiological parameter. The processor also determines when to recalibrate the relationship.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.