Actuator based on stimulating tympanic membrane and its hearing aid

Abstract

The invention discloses an actuator based on stimulating the tympanic membrane and a hearing aid device thereof. The actuator includes a piezoelectric mechanism, a fixed support device and an excitation film. A layer of excitation film is arranged on the top of the piezoelectric mechanism. The piezoelectric mechanism The tail end is fixedly arranged on the head end of the fixed support device, and the excitation membrane is implanted into the ear canal through the fixed support device and attached to the tympanic membrane. The fixed support device is supported on the ear canal by its branch support device; the actuation The hearing aid device of the present invention is constituted by a receiver, a microphone, a signal processing device, and a power supply device. The invention can directly excite the tympanic membrane, make the tympanic membrane vibrate, and compensate a relatively large degree of hearing damage, and its installation does not require complicated operation.

Description

technical field [0001] The invention relates to an actuator for treating hearing loss and a hearing aid device using the actuator, which is used for directly exciting the tympanic membrane to compensate for hearing loss. Background technique [0002] Sensorineural deafness is the most common type of hearing loss, and it is one of the most common diseases in my country. There are many reasons, such as congenital, high-intensity noise, etc. For some hearing-impaired patients, hearing aids can be used to improve or restore hearing, but traditional hearing aids have many problems: poor sound quality; only mild to moderate sensorineural hearing loss; output sound signals and ear canal feedback The sound signal of the patient is prone to aliasing, which reduces the clarity of the sound signal that the patient finally feels. [0003] In response to the above problems, domestic and foreign research institutions and researchers have begun to study mechanically stimulated implantabl...

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Problems solved by technology

[0005] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides an actuator based on stimulating the tympanic membrane and its hearing aid device, which can directly stimulate the tympanic membrane to make the tympanic membrane vibrate, compensate for a large degree of hearing loss, and can Solve the problem that the traditional support device is difficult to install due to the curvature of the ear canal and cannot guarantee a good fit with the ear canal during the installation process. It can adapt to the size of the ear canal, use the ear canal to play a fixed support role, and can Make the support mechanism not block the ear canal, solve the problem that the traditional support structure is easy to block the ear, the external air cannot contact the tympanic membrane, and the tympanic membrane is easy to be infected, and it solves the problem that the patient cannot feel the sound by himself when the actuator is closed. Problems where sound cannot be transmitted to the eardrum and its installation does not require more complex surgical procedures

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