Edwards Lifesciences Corporation
FINGER CUFF WITH A LIGHT PIPE FOR NON-INVASIVE HEMODYNAMIC MEASUREMENTS

Abstract:

Disclosed is a finger cuff that is attachable to a patient's finger to be used in measuring the patient's blood pressure by a blood pressure measurement system. The finger cuff may comprise: a light emitting diode (LED)--photodiode (PD) pair; a bladder that exerts pressure on the patient's finger; and a first light pipe that surrounds the LED to guide and focus light emitted by the LED, wherein the patient's finger surrounded in the finger cuff abuts against the bladder such that the bladder and the LED-PD pair are used in measuring the patient's blood pressure by the blood pressure measurement system.