Patent ID: 8897859
Filing Date: 2014-11-25
Classification: A61B

Abstract:
1. A biosensor device comprising: at least one pair of electrocardiographic electrodes that detect electrical signals of a living body; a respective insulating film disposed on each electrode of the at least one pair of electrocardiographic electrodes, each respective insulating film having a living body contact surface; a light emitter configured to emit light to the living body; a light receiver configured to receive reflected light from the living body; and a processor circuit that generates an electrocardiographic signal by differentially amplifying the electrical signals of the living body, and generates a photo-plethysmographic signal based on the light emitted from the light emitter and the reflected light received by the light receiver, wherein at least one electrode of the at least one pair of electrocardiographic electrodes is a light transmissive electrocardiographic electrode comprising an electroconductive material having light transparency in a wavelength range of the light emitted from the light emitter, and the insulating film disposed on the light transmissive electrocardiographic electrode is a light transmissive insulating film comprising an insulating material having light transparency in the wavelength range of the light emitted from the light emitter.