A new mechanical device for middle ear analyzer

Abstract

The utility model relates to the field of middle ear analyser, more specifically, relate to a novel middle ear analyser positive and negative air pressure mechanical device, including air nozzle and gas supply device, the air nozzle is connected with gas supply device through the micro -adjusting air pipe, the micro -adjusting air pipe is equipped with fixed magnetic ring one side close to the air nozzle, is equipped with the sliding magnetic ring on the micro -adjusting air pipe one side close to gas supply device, the utility model discloses a novel middle ear analyser positive and negative air pressure mechanical device, relative to traditional technology, because air nozzle and gas supply device no longer directly connect, but adopt the micro -adjusting air pipe and connect, because the diameter of micro -adjusting air pipe is determined when producing, therefore only need to determine the total length of micro -adjusting air pipe and the distance of sliding magnetic ring and fixed magnetic ring, can adjust the accurate volume, because the volume is determined through the pipe length x radius square x pi, and such structural error is less, and the adjustment is convenient.

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