Incus prosthesis with adjustable length

An incus and prosthesis technology, which is applied in the field of incus prostheses, can solve the problems of inappropriate socketing position, inability to adapt, and incapable of socketing, and achieve the effect of convenient connection and suitable tightness

Pending Publication Date: 2019-05-17
安徽奥弗智能微创医疗器械集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] For the case where the long foot of the incus of the ossicle is damaged, a composite structure consisting of a stapes clip and a collar is generally used to form an ossicle chain. The stapes clip is connected to the stapes, and the collar is used to socket the remaining incus; The length of the residual incus is different due to the damage of the incus in each patient. However, the ...

Method used

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  • Incus prosthesis with adjustable length
  • Incus prosthesis with adjustable length
  • Incus prosthesis with adjustable length

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Embodiment Construction

[0015] to combine Figure 1~4 As shown, the present invention provides a length-adjustable incus prosthesis, comprising a stapes clamp 1, the top of the stapes clamp 1 is provided with a horizontal connecting rod 2, and the connecting rod 2 is arranged at intervals along the axial direction for a set of The collar 3 matched with the incus and the connecting rod 2 are also provided with a group of annular grooves 4 at intervals along the axial direction, and the annular grooves 4 and the collar 3 are alternately arranged; the collar 3 can be open or closed. The stapes clamp 1 has a five-claw structure, and the five claws are specifically two claws at the rear, one claw at the front, and one claw at each side. The two claws at the rear make the stapes clamp coincide with the stapedius tendon behind the head of the stapes; The two claws are slightly inclined inward, which is easy to insert into the gap between the stapes arches below the stapes head; the front claw prevents the a...

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Abstract

The invention discloses an incus prosthesis with the adjustable length. The prosthesis comprises a stirrup bone clip. A horizontal connecting rod is arranged at the top of the stirrup bone clip. The connecting rod is provided with a set of lantern rings matched with a stirrup bone in the axial direction in a spaced mode, the connecting rod is provided with a set of annular grooves in the axial direction in a spaced mode, and the annular grooves and the lantern rings are arranged alternately; the stirrup bone is of a five-claw structure; by arranging the annular grooves, the connecting rod canbe broken apart from the position of the annular grooves, and therefore the length of the connecting rod can be changed when an otosteon prosthesis and the incus are connected; accordingly, the positions of the lantern rings can meet the different requirements of various patients; in addition, the stirrup bone clip of the five-claw structure can be more conveniently connected with the stirrup bone, and the degree of tightness is suitable.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a length-adjustable incus prosthesis. Background technique [0002] Due to disease, trauma or congenital deformity, the auditory ossicles of the middle ear (composed of three small bones, also known as the ossicular chain, from outside to inside are: malleus, incus, stapes, and the incus is divided into body, long leg and short leg) Three parts of the foot.The stapes consists of the arch of the stapes and the floor of the stapes, which is in contact with the inner ear perilymph and is the last structure in the middle ear that transmits vibrations to the inner ear) is usually damaged. The most common is damage to the long foot of the incus. If the incus injury results in a discontinuity or fixation between the tympanic membrane and the stapes floor, vibrations from the tympanic membrane cannot be efficiently transmitted to the stapes head, resulting in conductive hear...

Claims

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Application Information

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IPC IPC(8): A61F2/18A61F2/28
Inventor 王杰小池卓二赵非惠一楠王德伟
Owner 安徽奥弗智能微创医疗器械集团有限公司
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