Device for plethysmographic determination of the refilling time of leg veins

摘要

Method for determining the refill time of leg veins by measurement of a light reflection using a device with a sensor (1) for measuring the light reflection at different time points and a signal evaluation unit (10) for determining the time interval between an emission time point and an end time point. INDEPENDENT CLAIMs are included for the following: (1) a method for determining a risk value, especially a risk value for the correct functioning of a persons veins; (2) a corresponding device.