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Auditory ossicle fixing stent

A technology for fixing brackets and ossicles, applied in the field of medical devices, can solve the problems of rejection and prolapse, easy displacement, lack of fixing measures, etc., and achieve the effect of stable setting

Pending Publication Date: 2019-06-25
四川华曙图灵增材制造技术有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the clinically used ossicle prosthesis existing in the prior art, which is difficult to fix or even lacks fixation measures in the surgical implantation process, and is easy to shift and / or reject and prolapse after implantation, resulting in postoperative Poor feedback, no obvious relief of symptoms or even aggravation of the above-mentioned deficiencies, providing an auditory ossicle fixation bracket

Method used

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Examples

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Embodiment 1

[0050] Such as Figure 1-7 As shown, a kind of ossicle fixation bracket of the present invention comprises an oval disc 1, the major axis length of the oval disc 1 is 2-7 mm, and the minor axis length of the oval disc 1 is 1-3.2 mm, so The thickness of the elliptical disk 1 is 0.2-1.5mm.

[0051] Such as Figure 1-3 As shown, a through hole 2 is provided at the centroid of the elliptical disc 1, and the through hole 2 is provided through the thickness direction of the elliptical disc 1, and the diameter of the through hole 2 is 0.2-0.9 mm. The through hole 2 is used to cooperate with the stem of the auditory ossicle prosthesis 01. The elliptical disk 1 is provided with a hollow groove 3, and the hollow groove 3 extends from the periphery of the elliptical disk 1 to the through hole 2. The width of the groove 3 is 0.1-0.5 mm.

[0052] The elliptical surface of one side of the elliptical disk 1 is provided with three support feet 4, the length of each support foot 4 is 0.1-1....

Embodiment 2

[0057] A kind of ossicle fixation bracket according to the present invention comprises an elliptical disc 1, the major axis length of the elliptical disc 1 is 2-7mm, the minor axis length of the elliptical disc 1 is 1-3.2mm, the elliptical disc 1 1 The thickness is 0.2-1.5mm.

[0058] The centroid of the elliptical disc 1 is provided with a through hole 2, the through hole 2 is arranged through the thickness direction of the elliptical disc 1, the diameter of the through hole 2 is 0.9-1.5mm, and the through hole 2 Chassis for fitting the ossicle prosthesis 01.

[0059] The elliptical surface of one side of the elliptical disk 1 is provided with three support feet 4, the length of each support foot 4 is 0.1-1.2 mm, and the diameter of each support foot 4 is 0.1-1 mm. The two supporting feet 4 are arranged perpendicular to the elliptical surface, one supporting foot 4 is arranged on the long axis of the elliptical surface on both sides of the through hole 2, and one supporting ...

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Abstract

The invention discloses an auditory ossicle fixing stent which comprises an elliptical disc. The elliptical disc is matched with the inner wall and the outer wall of the middle ear cavity and the elliptical pit above a tympanic nerve, a through hole is formed in the center of the elliptical disc, the through hole is arranged in a penetrating manner in the thickness direction of the elliptical disc, and the diameter of the through hole is 0.2-0.9 mm, the through hole is used for being matched with the rod portion of an ossicular prosthesis, the elliptical disc is provided with an empty groove,the empty groove extends from the periphery of the elliptical disc to the through hole, and the width of the empty groove is 0.1-0.5 mm. The auditory ossicle fixing stent is applied to clinical auditory ossicular chain reconstruction surgery, is suitable for auditory ossicle prosthesis implantation (aiming at the condition of total auditory ossicle replacement), corrects the movement direction ofan auditory ossicle prosthesis base when the auditory ossicle prosthesis base is separated from the center of an operation fixing position of the auditory ossicle prosthesis base, assists in fixing the auditory ossicle prosthesis, prevents the auditory ossicle prosthesis from escaping, meets the bone conduction of the auditory ossicle prosthesis and ensures the movement of the auditory ossicle prosthesis within a certain range.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to an auditory ossicle fixation bracket for assisting ear surgery. Background technique [0002] The middle ear is composed of the tympanic membrane and the air-filled cavity containing the ossicular chain. The ossicular chain is between the tympanic membrane and the oval window. Its function is to transmit the sound waves felt by the tympanic membrane to the inner ear. The ossicular chain is transmitted to the stapes baseplate, and inflammation occurs in the middle ear cavity, especially when cholesteatoma-type otitis media occurs, the inflammation often destroys the ossicular chain, resulting in partial or complete defect of the ossicular chain. The body is often involved, resulting in the interruption of the ossicular chain, which causes the failure of hearing conduction, and clinically manifests as hearing loss; for patients in this state, surgical treatment requires reconstru...

Claims

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Application Information

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IPC IPC(8): A61F2/18
CPCY02P10/25
Inventor 陈飞杨聪聪汪洋谢涛
Owner 四川华曙图灵增材制造技术有限责任公司
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