A device for determining structural characteristics of an object comprising: a handpiece housing (132) with an open end and a longitudinal axis； an energy application tool mounted inside the housing for axial movement along the longitudinal axis of the housing, said energy application tool having a retracted shape and an extended shape； a sleeve (108) protruding from the open end (132a) of the housing by a distance, said sleeve adapted for contact with said object with at least a portion of its open end, a flange (110) extending from a part of the sleeve substantially parallel to the longitudinal axis of the housing and with an object in surface contact substantially perpendicular to the contact part of the object of the open end of the sleeve, a drive mechanism supported inside the housing, said drive mechanism adapted for the movement of the power application tool between the retracted and extended form, wherein said drive mechanism comprises a measuring and / or detection device positioned within said handpiece adapted for measuring and / or detecting displacement of the power application tool or the response of the object after the power application.Un dispositivo de determinación de características estructurales de un objeto que comprende: una carcasa (132) de pieza manual con un extremo abierto y un eje longitudinal； una herramienta de aplicación de energía montada en el interior de la carcasa para movimiento axial a lo largo del eje longitudinal de la carcasa, teniendo dicha herramienta de aplicación de energía una forma retraída y una forma extendida； un manguito (108) que sobresale desde el extremo abierto (132a) de la carcasa en una distancia, adaptado dicho manguito para el contacto con dicho objeto con al menos una parte de su extremo abierto, una pestaña (110) que se extiende desde una parte del manguito sustancialmente paralela al eje longitudinal de la carcasa y con un objeto en contacto superficial sustancialmente perpendicular a la parte de contacto
