Abstract: A probe for measuring the viscoelastic properties of a medium of interest, the probe including a housing, a transducer array for emitting high-frequency ultrasonic waves and receiving acoustic echoes, at least one inertial vibration exciter including a fixed part mechanically integral with the transducer array, a mobile part capable of moving relative to the fixed part to produce vibrations in order to generate the low-frequency elastic wave, wherein the mobile part includes at least one permanent magnet, the at least one inertial vibration exciter including an additional inertial mass distributed around the permanent magnet.

Abstract: A probe for measuring the viscoelastic properties of a human or animal medium of interest, such as a liver, said measurement consisting of generating at least one low-frequency elastic wave in the medium of interest, simultaneously with the generation of the low-frequency wave: emitting high-frequency ultrasonic waves, and receiving acoustic echoes due to the reflections of the ultrasonic waves in the medium of interest, the probe including a housing, a transducer array for emitting high-frequency ultrasonic waves and receiving acoustic echoes, wherein the probe further comprises at least one inertial vibration exciter including a fixed part mechanically integral with the transducer array, a mobile part capable of moving relative to the fixed part to produce vibrations in order to generate the low-frequency elastic wave.

Abstract: The present invention relates to a probe for measuring the viscoelastic properties of a human or animal medium of interest, such as a liver, said measurement consisting of: generating at least one low-frequency elastic wave in the medium of interest, simultaneously with the generation of the low-frequency wave: emitting high-frequency ultrasonic waves, and receiving acoustic echoes due to the reflections of the ultrasonic waves in the medium of interest, the probe comprising: a housing (31), a transducer array (33) for emitting high-frequency ultrasonic waves and receiving acoustic echoes, characterized in that the probe (3) further comprises at least one inertial vibration exciter (34) including: a fixed part (341) mechanically integral with the transducer array (33), a mobile part (342) capable of moving relative to the fixed part to produce vibrations in order to generate the low-frequency elastic wave.