Diagnostic hammer for nerve

Abstract

The invention belongs to a medical instrument, in particular to a neurodiagnostic hammer. According to the improved technical solution of the present invention, the hammer head is hinged at the same end of the upper arm and the lower arm, and the characteristic is that a notch is arranged on the hammer head, and a through hole is arranged on one side wall where the notch is formed, and the other side wall is A threaded hole is arranged on the upper arm; a corresponding through hole is arranged at the connection part of the upper arm and the lower arm, and the threaded end of the screw passes through a through hole of the hammer head and the through hole on the upper and lower arms and is connected with the threaded hole on the other side wall of the hammer head For mating connection, there is at least one spring washer sleeved on the screw between the root end face of the screw and the upper arm or the lower arm. The present invention can automatically lock the upper and lower arms when they are opened, and the tightness is uniform.

Description

technical field [0001] The invention belongs to a medical device, in particular to a nerve diagnostic hammer. Background technique [0002] The neurodiagnosis hammer is mainly used to test the reflex of the Achilles tendon, knee, elbow and other joint nerves of the human body, and can also be used as a scale. The nerve diagnostic hammer is generally composed of an upper arm and a lower arm. The same ends of the upper and lower arms are hinged with pins, and an elastic rubber head is set at the hinged end. When in use, the elastic rubber head can be used to lightly tap the corresponding diagnostic parts of the human body to test Nerve response status; in the prior art, due to structural design defects, when the upper and lower arms are opened and used, the degree of tightness of the lock is different, which affects the accuracy of the guide measurement; in addition, the processing of parts Dimensional accuracy requirements are also relatively high. Contents of the inventio...

AI Technical Summary

Problems solved by technology

The nerve diagnostic hammer is generally composed of an upper arm and a lower arm. The same ends of the upper and lower arms are hinged with pins, and an elastic rubber head is set at the hinged end. When in use, the elastic rubber head can be used to lightly tap the corresponding diagnostic parts of the human body to test Nerve response status; in the prior art, due to structural design defects, when the upper and lower arms are opened and used, the degree of tightness of the lock is different, which affects the accuracy of the guide measurement; in addition, the processing of parts Dimensional accuracy requirements are relatively high

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