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Novel hearing compensation actuator

An actuator and hearing technology, applied in hearing aids, electrical components, etc., can solve the problems of large influence of patients' residual hearing, deterioration of patients' residual hearing, and increase of manufacturing costs, etc., to reduce excitation power consumption, reduce stiffness, reduce Effects of Small System Stiffness

Inactive Publication Date: 2015-09-23
张景
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the actuator is clamped on the ossicular chain, its inertia will inevitably deteriorate the patient's residual hearing
Studies have shown that the greater the mass of this type of actuator, the greater the impact on the patient's residual hearing, so it is necessary to limit the mass of the entire actuator, which puts higher requirements on the manufacturing process and greatly increases the manufacturing cost
In addition, the normal operation of the actuator requires the patient's ossicular chain to be intact, which makes this actuator unable to treat patients with mixed hearing impairment with damaged ossicular chain

Method used

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Embodiment

[0018] figure 1 It is a schematic diagram of the structure of the human ear, which shows the cross sections of the outer ear 1 , the middle ear 2 and the inner ear 3 . The outer ear mainly includes the pinna 4 and the ear canal 5 . The middle ear consists of the tympanic membrane (tympanic membrane) 6 and the chain of ossicles. The ossicular chain consists of three tiny interconnected bones (ossicles), the malleus7, the incus8 and the stapes9. The malleus 7 is attached to the eardrum 6, while the stapes 9, the last bone in the ossicular chain, is coupled to the cochlea 10 of the inner ear. In normal hearing, the auricle 4 of the outer ear collects pressure fluctuations in the external air, passes through the ear canal 5 to the tympanic membrane 6, and causes the tympanic membrane and ossicular chain (malleus 7, incus 8, stapes 9) in the middle ear system The vibration is transmitted to the cochlea 10 in the inner ear by the stapes 9 of the ossicular chain. The inner hair c...

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Abstract

The invention relates to a novel hearing compensation actuator in the technical field of hearing aids. The actuator comprises a fixed supporting device, a piezoelectric component, a casing, a coupling rod and springs, wherein the fixed supporting device is implanted and fixed in the skull, the piezoelectric component is formed by piezoelectric stacks, one end of the piezoelectric component is connected with the fixed supporting device, the other end of the piezoelectric component is connected with the base portion of the coupling rod, the acting end of the coupling rod directly acts on an auditory ossicle of the middle ear, the coupling rod is connected to the side surface of the casing via the springs, vibration balance is realized by the reaction force of the springs, and displacement of the coupling rod can be controlled. The hearing compensation actuator can work in the environment of strong magnetic field, work of the actuator does not require a complete hearing chain of a patient, and the patient with mixed hearing damage can be treated. In addition, the hearing compensation actuator also has the advantages that the high-frequency gain is high, serious sensorineural hearing damage can be compensated, design is reasonable, the structure is simple, and the actuator is suitable for optimal design of the hearing aid.

Description

technical field [0001] The present invention relates to a novel surgically implantable actuator for the treatment of hearing loss, more specifically, the present invention relates to an implantable actuator based on a piezoelectric stack and a spring coupling rod connection, the actuating The organ generates vibrations according to external sound signals, and compensates for hearing loss by directly driving the incus baseplate or stapes baseplate in the ossicular chain. Background technique [0002] Hearing loss has become a common disease nowadays. At present, about 20,000 to 30,000 newborns in China suffer from congenital severe deafness every year; with the aging of the society, more and more elderly people will also suffer from sensorineural deafness due to the aging of the auditory system; Due to the impact of modern industry, many people have damaged hearing hair cells due to living noise or occupational reasons, and the number of deaf patients has increased dramatica...

Claims

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Application Information

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IPC IPC(8): H04R25/00
Inventor 张景田佳彬许立富卢坤塔娜饶柱石
Owner 张景
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