Semicircular canal function test head-impulse chair

Abstract

The invention discloses a head impulse assistant chair for semicircular canal function testing, comprising a chair body and a head impulse drive device fixed above the chair body, the head impulse drive device comprising a frame fixed on the chair body, and a rear end fixed on the machine body. The upper longitudinal beam at the top of the frame, the torsion frame with the helmet fixed at the bottom, and the automatic driving mechanism for driving the torsion frame to reciprocate horizontally, the center line of the rotation axis of the torsion frame is suspended on the upper longitudinal beam by sliding along the vertical single degree of freedom. Front end; the torsion frame is driven by the automatic drive device to rotate, which in turn drives the helmet to reciprocate, realizes the automatic head-swing drive operation for the subject, reduces the labor intensity of the tester, and controls the torsion amplitude and speed of the head-swing with high precision to ensure the test results. precise.

Description

technical field [0001] The invention relates to a medical experimental apparatus, in particular to a head-impulse assistant chair for semicircular canal function testing. Background technique [0002] The semicircular canal function test generally needs to be suitable to stimulate the rotation of the head. When the head rotates, the endolymph is inert and moves in the opposite direction to the rotation, and the terminal cap is bent and deformed, which indirectly stimulates the hair cells and their bases. The vestibular nerve endings are combined with the head pulse test system to detect the subject, and the existing detection or medical experiments usually use the tester's hands to perform end twisting on the subject's head, so as to realize the twisting of the head, and this method The use of manual reciprocating drive torsion operation makes the testers labor-intensive and low in work efficiency. More importantly, the amplitude and speed of each manual torsion are not unif...

AI Technical Summary

Problems solved by technology

[0002] Semicircular canal function detection generally needs to be suitable for stimulating head rotation. When the head rotates, the endolymph is displaced in the direction opposite to the rotation due to inertia, and the end cap bends and deforms accordingly, which indirectly stimulates the growth of hair cells and their bases. The vestibular nerve endings are combined with the head impulse test system to detect the subject, and the existing detection or medical experiments usually use the tester's hands to twist the tester's hands to drive the subject's head shaking, and this method The reciprocating drive and torsion operation is carried out manually, which makes the test personnel labor intensive and low in work efficiency. More importantly, the artificial torsion amplitude and speed are not uniform each time, which is not conducive to quantitative experiments, and the test data is inaccurate due to driving errors. , affecting the obtaining of accurate results

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