| 摘要 |
The disclosure comprises a wearable device for assessing blood flow in a subject, the device comprising a plurality of photoplethysmography (PPG) sensors comprising a first PPG sensor and a second PPG sensor, each sensor being arranged to carry out measurements indicative of blood flow in the subject, wherein the PPG sensors are disposed such that, when the device is worn on an upper or lower limb of the subject, the first PPG sensor is in contact with the upper or lower limb on which the device is worn, and the second PPG sensor is contactable by the other of the upper or lower limb of the subject. |
