Patent ID: 8657754

Claim:
A sphygmomanometer comprising: a base; a cuff unit into which a biological member serving as a measurement site can be inserted; a rotation mechanism that is provided between the base and a position below a biological member exit side of the cuff unit and enables rotation of the cuff unit relative to the base about a rotation axis; an elbow detection mechanism that is provided in a portion of the cuff unit above the rotation axis and detects placement of an elbow of a measurement subject, wherein the elbow detection mechanism includes an elbow detection cover adapted to receive the elbow of the measurement subject, wherein an upper surface of the elbow detection cover comprises a recessed curved face that is substantially flush with an inner surface of the cuff unit on the biological member exit side of the cuff unit; and an erroneous detection prevention wall, whose upper end is at a same height as that of an outer surface of the elbow detection cover, that is provided on the biological member exit side of the cuff unit.