Control on output modulation in hearing instrument

Abstract

The invention discloses to control on output modulation in a hearing instrument. The hearing instrument comprises a main body, and a through hole is formed in front of the main body; the through holeis communicated with the internal of the main body, a plurality of blind holes are formed on the inner wall of the through hole, and the spaces between each two adjacent blind holes are equal; the inner end of the blind hole is communicated with the internal of the through hole, a guiding hole is formed on the outer end of each blind hole, and the guiding hole is collinear with the center line ofeach corresponding blind hole; a plurality of cylindrical slots are formed at the internal of the front of the main body, and the cylindrical slots and the blind holes are in one-to-one correspondence; the cylindrical clots are collinear with the center lines of the corresponding blind holes, and each guiding hole is respectively communicated with the cylindrical slot and the internal of the blindhole; through the mutual cooperation of a first gear, a third gear, a crank, a rack, a second gear and a movable rod, the adhesive tape can swing once when rotating the rotating shaft each time, thereby attracting the attention of the infant, so that the infant cannot be irritable and cry when the medical workers adjust the mode, the infant can cooperate to finish the check, the check can be fastand efficiently finished, and the control is beneficial for the accuracy of a checking result.

Description

technical field [0001] The invention belongs to the technical field of listening devices, and in particular relates to the control of output modulation in hearing instruments. Background technique [0002] Hearing screening instrument is widely used in newborn hearing screening, infant conditioned reflex, hearing test for children and adults, hearing aid fitting and adjustment, hearing aid morning inspection, auditory rehabilitation assessment, collective language training machine fitting adjustment, F Hearing aid fitting. However, the existing hearing screening instruments all use buttons to adjust the output mode. If the adjustment range is large, the medical staff need to press the button multiple times, and because the button is designed to prevent accidental touch, the force required for pressing is relatively large. , Pressing for a long time will cause sore fingers of the medical staff, and even cause cramps. The hearing screener also uses an LCD screen, but in order...

AI Technical Summary

Problems solved by technology

However, the existing hearing screening instruments all use buttons to adjust the output mode. If the adjustment range is large, the medical staff need to press the button multiple times, and because the button is designed to prevent accidental touch, the force required for pressing is relatively large. , Pressing for a long time will cause sore fingers of the medical staff, and even cause cramps. The hearing screener also uses an LCD screen, but in order to reduce the volume of the hearing screener, the LCD screen is usually small, and the medical staff will check whether the adjustment is successful. prone to eye fatigue

Images