The present invention relates to wearable devices for monitoring of vital signs. More specifically, the present invention relates to a one-piece wearable device for mounting on the upper arm of the patient and monitoring of multi-parameter vital signs without any attached cable.一種可穿戴式生理參數監測裝置,特別指可以穿戴在病患上臂的單件式(one-piece)裝置,用以監測多種生理參數,且該裝置不需透過額外線材將感測器連接到身體其他部位,所有生理信號皆透過位於上臂的多個感測器量測而得。