The invention relates to a
mechanical pressure sensing ultrasonic probe for elasticity imaging, which comprises a probe core part, a
handle, a probe seat, a sliding shaft, a sliding bearing, a
pressure sensor and a spring. The lower end of the sliding shaft is connected with the probe core part; both ends of the spring are respectively connected with the probe seat and the upper end of the
pressure sensor; the lower end of the
pressure sensor is connected with the probe core part; and the
handle is arranged at the top of the probe seat. The spring is arranged between the probe core part and the
handle for carrying out buffering, so that the probe core part is always adhered to a checked part to carry out low-amplitude vibration, and thus, the problem of interruption of elasticity imaging, which is caused by the case that the probe core part is separated from the checked part, is avoided; the force application direction is more easily kept perpendicular to the surface of the probe core part, so that quality of elasticity imaging is improved; and moreover, the pressure sensor is arranged at the back of the probe core part, so that the stress condition of the checked part is more accurately detected and the
elastic modulus of the checked part is better reflected, and thus, elasticity difference of the checked part and the surroundings thereof is more accurately judged.