Public Title Optical Oscillometric, Noninvasive Measurement of Blood Pressure in Man and Animals Division Lead Inventor Geddes, Leslie Public Description This technology, protected by an issued United States patent (#6,801,798), provides a system for the optical, noninvasive measurement of blood parameters in infants and neonates. Arterial and capillary blood flow characteristics in tissues are measured through the absorbance of near-infrared light and the application of an algorithm to interpret the light signal. When used in measuring blood pressure, the device measures the volumetric change of oxygenated hemoglobin in the capillary or arterial bed. The regular change in oxygenated blood volume generated by the pumping of the heart creates a pulse waveform that can be detected optically by the light, allowing the direct measurement of mean arterial blood pressure. Systolic and diastolic blood pressures, along with heart and respiration rates, are calculated with a high degree of accuracy. The technology also provides the possibility of near continuous blood pressure monitoring and has the capacity to concurrently measure SpO2. Patent Status Public References Key Words ,Biomedical Engineering/Medical devices Manager Shane Fimbel Email smfimbel@prf.org Telephone 765-588-3491 Fax 795-463-3486   Back to List