Patent ID: 8160691
Filing Date: 2012-04-17
Classification: A61B

Abstract:
1. An apparatus measuring skin moisture content, the apparatus comprising: a memory device maintaining a skin moisture content table which stores a skin impedance value of each of a plurality of skin areas, each of the skin areas being classified into at least a moist area and a dry area prior to measuring skin impedance of a predetermined skin area of a user, and skin moisture content information corresponding to the skin impedance value; a measurement module measuring the skin impedance of the predetermined skin area of the user; a differential rate calculation module measuring a differential rate of skin impedance at a same position of the predetermined skin area for a predetermined period of time, wherein the differential rate calculation module continuously calculates the differential rate of the skin impedance for a predetermined period of time; a skin state determination module determining that the skin area is the moist area when the differential rate is greater than or equal to a predetermined value of the stored skin impedance value for the predetermined skin area for a predetermined period of time, determining that the skin area is the dry area when the differential rate is less than the predetermined value of the stored skin impedance value for the predetermined skin area for the predetermined period of time, and extracting the skin moisture content information which corresponds to the measured skin impedance value by referring to the skin moisture content table; and an output device providing the skin moisture content information to the user.