A device for measuring an ultrasonic or biomechanical parameter of a viscoelastic medium, includes an ultrasound transducer； at least one vibrator having a fixed part and a mobile part, the ultrasound transducer being secured to the mobile part of the at least one vibrator； at least one adhesive element secured to the vibrator, the adhesive element being configured to be fixed adhesively to a surface facing it belonging to the viscoelastic medium and to keep the emission and reception face of the ultrasound transducer facing the surface.
