[Problem] To provide a blood pressure meter capable of not producing wrinkles on the inner-surface side of a cuff when applying pressure to the upper arm by using the cuff. [Solution] A blood-pressure-meter (1) cuff (3) equipped with a body member (80) having a blood-restricting airbag (20) for restricting the flow of blood in the upper arm by supplying air, and an arterial-pulse-detection airbag (40) for detecting the pulse of an artery in the upper arm (T) by supplying air, and positioned in the blood-restricting airbag (20) of the body member (80), wherein: the body member (80) has a first surface section (50A) on the outside and a second surface section (50B) which contacts the upper arm (T) and overlaps the first surface section (50A) the blood-restricting airbag (20) is formed from the first surface section (50A) and the second surface section (50B) the length of the first surface section (50A) in the direction encircling the upper arm is set so as to be longer than the length of the second surface section (50B) in the direction encircling the upper arm and the first surface section (50A) is formed three-dimensionally in relation to the second surface section (50B).[Problème] Fournir un détecteur de pression artérielle capable de ne pas produire de rides sur le côté de surface interne dun brassard quand on applique une pression à larrière-bras en utilisant le brassard. [Solution] Un brassard (3) de tensiomètre (1) équipé dun élément de corps (80) ayant un sac gonflable restreignant le sang (20) pour restreindre lécoulement de sang dans larrière-bras en fournissant de lair, et un sac gonflable de détection du pouls artériel (40) pour détecter le pouls dune artère dans larrière-bras (T) en fournissant de lair, et positionné dans le sac gonflable restreignant le sang (20) de lélément de corps (80) où: lélément de corps (80) a une première section de surface (50A) sur lextérieur et une seconde section de surface (50B) qui est en contact avec larrière-bras (T) et c
