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Artificial auditory ossicle for treating mixed hearing damage

A hearing-impaired and hybrid technology, applied in medical science, prosthesis, etc., can solve the problem of electromagnetic actuators with narrow working frequency band, unsuitable for fully implanted artificial ossicles, and high energy consumption of electromagnetic actuators. problem, to achieve the effect of easy to widely popularize and use, simple structure and low power consumption

Active Publication Date: 2012-12-26
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the active artificial ossicle can compensate for mixed hearing loss, because the actuator of the artificial ossicle is electromagnetic, that is, it is driven by electromagnetic principles, which makes it impossible for the artificial ossicle to operate in a strong magnetic field environment. The electromagnetic actuator consumes a lot of energy and requires frequent charging, so it is not suitable for fully implanted artificial ossicles; the operating frequency band of the electromagnetic actuator is narrow, and sensorineural hearing damage often occurs in the High frequency band, making its compensation effect in the high frequency band not good
[0005] In summary, the existing active artificial ossicles that can treat mixed hearing loss have technical problems such as inability to work in a strong magnetic field environment, high energy consumption, and poor high-frequency gain.

Method used

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  • Artificial auditory ossicle for treating mixed hearing damage
  • Artificial auditory ossicle for treating mixed hearing damage
  • Artificial auditory ossicle for treating mixed hearing damage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 2 image 3 As shown, the artificial ossicles of the present invention for the treatment of mixed hearing loss include a top plate 11 implanted on the inner eardrum 6 of the human ear. Electric device, the piezoelectric device includes a stepped connecting rod 12, a sleeve 16 sleeved on the connecting rod 12, a piezoelectric stack 13 is arranged inside the sleeve 16, and the outlet side of the sleeve 16 is provided with a pressure The electrical stack 13 abuts against the tray 15 on the connecting rod 12 . The tray 15 is slidingly fitted with the sleeve 16 . The front part of the piezoelectric device is provided with a stapes clamp 14 acting on the stapes 9 of the human ear; the connecting rod 12 is connected eccentrically to the top plate 11, and the connection point is close to the side of the long diameter of the top plate. There are 4-5 through holes 17 on the top plate 11; the stapes clamp 14 is in the shape of a funnel clamp, a herringbone with a...

Embodiment 2

[0040] Such as Figure 4 As shown, it is basically the same as Embodiment 1, and the similarities are omitted. The difference: the piezoelectric device includes a connecting rod 12 of a cylindrical articulated head, an end cover 21 hinged on the connecting rod 12, a sleeve 16 is arranged on the end cover 21, and a piezoelectric stack is arranged inside the sleeve 16. The exit side of the stack 13 , the bushing 16 , is provided with a tray 15 holding the piezoelectric stack 13 against the connecting rod 12 . The connecting rod 12 and the piezoelectric component are connected by a spherical pair, and the connecting rod 12 is connected to the connecting rod 12 through the spherical pair 22 through the end cover 21, so as to realize the spherical pair connection between the connecting rod 12 and the piezoelectric component.

Embodiment 3

[0042] Such as Figure 5 As shown, it is basically the same as Embodiment 1, and the similarities are omitted. The difference: the piezoelectric device includes a connecting rod 12 of a spherical joint, a housing 23 hinged on the connecting rod 12, a piezoelectric stack 13 is arranged inside the housing 23, and a connecting rod 13 is provided at the bottom of the housing 23. The connecting sleeve 25 of the stapes clamp 14. The connecting rod 12 and the piezoelectric member are connected by a spherical pair, and the ball head 24 is connected with the connecting rod 12 of the spherical joint, so as to realize the spherical pair connection between the connecting rod 12 and the piezoelectric member. The housing 23 adopts a cymbal structure, and the two top ends of the piezoelectric stack 13 in the telescopic direction are fixed on the left and right walls of the housing 23, so as to convert the lateral telescopic movement of the piezoelectric stack 13 into the longitudinal moveme...

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Abstract

The invention discloses an artificial auditory ossicle for treating a mixed hearing damage. The artificial auditory ossicle comprises a top tray, a connection bar, a piezoelectric device and a stapes clamp, wherein the top tray is fixed on an eardrum in an operation implantation manner; one end of the connection bar is connected with the top tray; the other end of the connection bar is connected with the base end of the piezoelectric device; the piezoelectric device mainly comprises piezoelectric stacks; the action end of the piezoelectric device is connected with the base end of the stapes clamp; and the action end of the stapes clamp directly acts on stapes. The artificial auditory ossicle not only can be used for replacing a damaged auditory ossicle like a traditional artificial auditory ossicle so as to treat a conductive hearing loss, but also has an active shock excitation ability so as to compensate an accompanied sensorineural hearing loss. In addition, the active auditory ossicle can work under the environment of high-intensity magnetic field and has the advantages of low energy consumption and good high-frequency gain. The artificial auditory ossicle also has the advantages of simple structure, high ireliability, low manufacturing cost and low price, thereby being convenient for widely popularization.

Description

technical field [0001] The invention relates to an artificial ossicle, in particular to a piezoelectric active artificial ossicle suitable for treating hearing impairment and mixed hearing impairment. Background technique [0002] The artificial ossicle is a device that replaces one or more of the three ossicles in the human middle ear, and is used to treat conductive hearing loss caused by necrosis or defect of the ossicles. However, it has been clinically shown that some of these patients with conductive hearing loss are also accompanied by sensorineural hearing loss, that is, the cochlea in the inner ear of the patient still has functional impairment. This combination of conductive hearing loss and sensorineural hearing loss is clinically called mixed hearing loss. For this type of hearing loss, the traditional treatment method is to implant the artificial ossicle, and then let the patient wear a hearing aid, that is, first treat the conductive hearing loss through the a...

Claims

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Application Information

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IPC IPC(8): A61F2/18A61L27/06A61L27/18A61L27/16A61L27/10
Inventor 刘后广黄新生饶柱石李中凯戚颖程刚
Owner CHINA UNIV OF MINING & TECH
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