Blood pressure determination with resolution sufficient to resolve Pulsus Paradoxus is based on measurement of delay time between points on a heartbeat pulse
US Patent # 7,087,025
M.C . Baruch
Apparatus and Method for Measuring Pulse Transit Time
US Patent # 6,723,054
M.C . Baruch, D.W. Gerdt, C.A. Adkins
Sensing pad assembly employing variable coupler fiberoptic sensor
US Patent # 6,687,424
D.W. Gerdt, M.C . Baruch, C.A. Adkins
Single Mode Fiber Optic Evanescent Wave Refractometer
US Patent # 6,480,638
D.W. Gerdt, M.C . Baruch, C.A. Adkins
Variable coupler fiber-optic sensor and sensing apparatus using the sensor
US Patent # 6,463,187
M.C . Baruch, D.W. Gerdt, C.A. Adkins
Passive photonic eye delivery system
US Patent # 6,235,046
D.W. Gerdt