A Noninvasive Optical Sensor for Hemoglobin Measurements
Funded by NIH, Grant No.: 5R44HL055120-03
Patent No.: Pending
The Need
Hemoglobin measurements are extremely important in blood transfusions, blood sugar monitoring, and provide valuable information about a patient's blood. Hematocrit testing is a common pediatric procedure to check for leukemia and anemia. Blood tests such as hemoglobin and hematocrit are very common, yet there is much room for improvement.
The Idea
By using a new absorption technique and multiple scattering analysis, measurements of hemoglobin and hematocrit can be made continuously and noninvasively. Noninvasive measurements will avoid blood loss, decrease risk of infection, and reduce therapeutic decision times. CW Optics is currently designing a real-time device to monitor both hemoglobin and hematocrit.
The Science
CW Optics has successfully demonstrated the ability of applying differential absorption technique and multiple scattering analysis to noninvasively and continuously monitor the four major types of hemoglobin. Current ventures into developing a prototype are underway.
The Bottom Line
CW Optics' proposed device stands to impact both critical and routine care. The device will improve and enhance the performance of current pulse oximeters through increased accuracy and data analysis. The market for two-wavelength pulse oximeters was around $250 million in 1996, and the current point of care blood gas market is estimated at more than $400 million.