Limb ultrasonic diagnosis and treatment auxiliary device

The invention discloses a limb ultrasonic diagnosis and treatment auxiliary device. The device comprises a water tank and a limb sealer, wherein the water tank is used for containing liquid, and the limb sealer is arranged on one side wall of the water tank; the limb sealer is provided with a limb penetrating hole, and a seal structure is arranged at the edge of the limb penetrating hole and used for sealing the limb edge. According to the limb ultrasonic diagnosis and treatment auxiliary device, the water tank is arranged for conducting ultrasonic diagnosis and treatment, a limb of a person is immersed into the liquid in the water tank, when the human body is scanned with ultrasonic waves, due to the fact that water has liquid characteristics and can serve as a good medium for ultrasonic propagation, close contact between a probe and an examined position can be intensified, gas interference is eliminated, meanwhile, the distance between the ultrasonic probe and the examined position can be increased, pseudomorphism caused by the partial volume effect due to the fact that the distance between the ultrasonic probe and the examined position is excessively short is avoided, and the display rate of ultrasonic diagnosis is raised.