Vestibular cold and hot gas stimulator

Abstract

The invention relates to a vestibular cold and hot gas stimulator, and belongs to the technical field of medical bilateral vestibular function detection.The instrument comprises a cold and hot gas temperature changing assembly, a temperature and wind speed display assembly and an earplug assembly which are sequentially communicated through airflow conduits; cold air or hot air generated by the cold and hot air temperature changing assembly flows through the temperature and wind speed display assembly through the airflow guide pipe and then is injected into the external auditory canals on the two sides from the earplug assembly at the same time, and cold and hot air stimulation of the external auditory canals on the two sides is achieved at the same time. By using the instrument provided by the invention, variable-temperature cold and hot tests can be simultaneously carried out on the two ears of a subject, the strong adverse reaction of vestibular autonomic nerves during single-ear variable-temperature cold and hot tests can be avoided, the tolerance of the subject is improved, and the detection time can be greatly saved.

Description

technical field [0001] The invention belongs to the technical field of medical bilateral vestibular function detection, in particular to a vestibular hot and cold gas stimulator. Background technique [0002] The vestibular hot and cold gas stimulator is one of the important instruments for the vestibular function test of the body balance system. The disadvantages of the conventional vestibular hot and cold gas stimulator are: (1) Only one ear can be tested each time, so each patient needs to be tested 4 times, and the two tests need to be separated by at least 5 minutes. The operation is time-consuming and laborious, which affects the detection. efficiency. (2) When unilateral ear is stimulated with cold or hot air, it is easy to cause adverse reactions of vestibular autonomic nerves such as headache, dizziness, nausea and vomiting, rapid heartbeat, cold sweat, etc. A small number of patients have to terminate the examination, and some patients are afraid of re-examination...

AI Technical Summary

Problems solved by technology

The disadvantages of conventional vestibular hot and cold gas stimulators are: (1) only one ear can be tested each time, so each patient needs to perform 4 tests, and the two tests need to be separated by at least 5 minutes. The operation is time-consuming and laborious, which affects the test. efficiency

(2) When unilateral ear is stimulated by cold or hot air, it is easy to cause headache, dizziness, nausea and vomiting, rapid heartbeat, cold sweat and other vestibular autonomic adverse reactions. A small number of patients have to stop the examination, and some patients are afraid of re-examination, and even refuse check again

[0003] In order to solve the above problems, clinical medical personnel and scientific researchers have been trying to design a vestibular function detector that is simple, fast and safe to stimulate the ears with cold and hot gas and has mild adverse reactions, but so far no satisfactory progress has been made.

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