CN210228400U

CN210228400U - Tongue-shaped ossicle prosthesis

Info

Publication number: CN210228400U
Application number: CN201920340263.5U
Authority: CN
Inventors: Jie Wang; 王杰; Takuji Koike; 小池卓二; Fei Zhao; 赵非; Yinan Hui; 惠一楠; Dewei Wang; 王德伟
Original assignee: Anhui Aofu Intelligent Minimally Invasive Medical Devices Co ltd
Current assignee: Anhui aofu intelligent minimally invasive medical instrument Group Co.,Ltd.
Priority date: 2019-03-18
Filing date: 2019-03-18
Publication date: 2020-04-03
Anticipated expiration: 2029-03-18

Abstract

The utility model discloses a tongue-shaped ossicle prosthesis, which comprises a top disc, a connecting rod and a base; the side edge of the top plate is provided with an S-shaped supporting tongue body which can be matched with the malleus; the top disc is connected with the connecting rod through a ball joint; the bottom of the base is provided with a groove, and the base is also provided with a group of vertical through holes; the supporting tongue body is matched with the hammer bone, so that the ossicle prosthesis can be well supported with the hammer bone, and the stability is enhanced; the top disc is connected with the connecting rod through the ball-and-socket joint, so that the angle between the top disc and the connecting rod can be flexibly and conveniently adjusted, and the device is suitable for the requirements of different patients; the recess of base bottom and the triangle opening of base both sides can form the cooperation with the arch on the stapes footplate, make base and stapes footplate be connected closely more to be convenient for organize the healing.

Description

Tongue-shaped ossicle prosthesis

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a tongue-shaped ossicle prosthesis.

Background

The ossicles of the middle ear (consisting of three ossicles, called auditory ossicle chain, in sequence from the outside inwards: malleus, incus, stapes, the stapes consisting of the stapes arch and the stapes footplate, the latter being in contact with the perilymph fluid of the inner ear, the last structure of the middle ear that transmits vibrations to the inner ear) are often damaged by disease, trauma or congenital deformities. If such damage results in discontinuity or fixation of the ossicular chain between the tympanic membrane and the stapes footplate, vibrations transmitted from the tympanic membrane are not efficiently transmitted to the stapes footplate, resulting in conductive hearing loss. When the damaged ossicle is replaced by the ossicle prosthesis, the vibration from the tympanic membrane is transmitted to the stapes footplate by the ossicle prosthesis, and the conductive hearing loss caused by the ossicle damage is partially or completely compensated. Some or all of these ossicles may be replaced with a small prosthesis.

Currently, auditory ossicle prostheses are generally composed of a head plate, a linkage and a base, constituting the ossicular chain replacing the malleus, incus and stapes. The existing auditory ossicle prosthesis is found in use, and the stability between the auditory ossicle prosthesis and a malleus is poor when the auditory ossicle prosthesis is found in use; the top disc and the connecting rod are fixed, so that the movable range is limited, and the hard connection mode cannot bear the pressure change impact of the middle ear cavity; in addition, the base is a solid platform, which is difficult to be stably connected with the footplate of the stapes on one hand, and peripheral soft tissues are difficult to be fused with the footplate of the stapes on the other hand.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ossicle prosthesis is listened to tongue shape, should listen ossicle prosthesis can and hammer between form good support, reinforcing stability, and the home range is convenient for adjust use angle, convenient foot plate with the stapes links to each other in addition, healing with higher speed.

The utility model provides a technical scheme that its technical problem adopted is:

a tongue-shaped ossicle prosthesis, which comprises a top disc, a connecting rod and a base; the side edge of the top plate is provided with an S-shaped supporting tongue body which can be matched with the malleus; the top disc is connected with the connecting rod through a ball joint; the base bottom is equipped with the recess, still is equipped with a set of vertical through-hole on the base.

Furthermore, the groove of the base is a triangular groove arranged along the axial direction of the base.

Furthermore, vertical triangular openings are respectively arranged on two sides of the base.

Furthermore, the through-hole contains four, and four through-holes are the rectangle and distribute in the base.

Furthermore, a buffer spring is arranged in the ball-and-socket joint.

Further, the top disc is circular or oval.

Further, the ball-and-socket joint is located at the center or eccentric position of the top plate.

Furthermore, the ribs of the top plate are S-shaped.

The utility model has the advantages that:

the supporting tongue body is matched with the hammer bone, so that the ossicle prosthesis can be well supported with the hammer bone, and the stability is enhanced;

the top disc is connected with the connecting rod through the ball-and-socket joint, so that the angle between the top disc and the connecting rod can be flexibly and conveniently adjusted, and the requirement of the change of the relative position between the tympanic membrane and the ossicle prosthesis caused by the pressure change of different middle ear cavities is met;

thirdly, the ribs on the top disc are arranged in an S shape, so that the visual field during operation can be enlarged, blind areas are reduced, and the quality of the auditory ossicle prosthesis is reduced;

a buffer spring is arranged in the ball-and-socket joint, so that the air pressure change of a part of middle ears can be buffered, the pressure of the top disc on the eardrum is reduced, the damage of the top disc on the eardrum is further reduced, and the falling rate of the implant is reduced;

fifthly, the groove at the bottom of the base and the triangular openings at the two sides of the base can be matched with the residual convex part on the stapes bottom plate, so that the base is more tightly connected with the stapes bottom plate, and the surrounding tissues can conveniently grow in to play a role in fixing;

sixthly, the through holes in the base can reduce the weight of the base, reduce the overall quality, and facilitate the growth of surrounding tissues, thereby fixing the auditory ossicle prosthesis.

Drawings

The invention will be further described with reference to the following figures and examples:

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a bottom perspective view of the present invention;

fig. 3 is a side view of the present invention;

fig. 4 is an enlarged bottom perspective view of the base of the present invention.

Detailed Description

Referring to fig. 1-4, the utility model provides a tongue-shaped ossicle prosthesis, which comprises a top disc 1, a connecting rod 2 and a base 3, wherein ribs 10 are arranged on the top disc 1, and the ribs 10 are in an S shape; the side edge of the top plate 1 is provided with an S-shaped supporting tongue body 4, and the supporting tongue body 4 can be matched with a malleus; the top disc 1 is connected with the connecting rod 2 through a ball-and-socket joint 5, and preferably, a buffer spring 6 is arranged in the ball-and-socket joint 5; the bottom of the base 3 is provided with a groove 7, and the groove 7 is a triangular groove arranged along the axial direction of the base; two sides of the base 3 are respectively provided with a vertical triangular opening 8; still be equipped with a set of vertical through-hole 9 on the base 3, through-hole 9 contains four, and four through-holes are rectangular distribution in the base. The top plate 1 is circular or elliptical. The ball joint 5 is positioned in the center of the top plate 1 and can also be positioned in an eccentric position of the top plate 1.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the invention is not limited to the embodiments described herein, but is capable of other embodiments according to the invention, and may be used in various other applications, including, but not limited to, industrial. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still belong to the protection scope of the technical solution of the present invention.

Claims

1. A hyoid ossicle prosthesis comprises a top disc, a connecting rod and a base, wherein ribs are arranged on the top disc, and the hyoid ossicle prosthesis is characterized in that an S-shaped supporting tongue body is arranged on the side edge of the top disc and can be matched with a malleus; the top disc is connected with the connecting rod through a ball joint; the base bottom is equipped with the recess, still is equipped with a set of vertical through-hole on the base.

2. A hyoid ossicular prosthesis according to claim 1, wherein the recess of the base is a triangular groove disposed axially along the base.

3. A hyoid ossicular prosthesis according to claim 1 or 2, wherein the base is provided with vertical triangular openings at both sides thereof, respectively.

4. The ossicular prosthesis of claim 3, wherein the number of through holes comprises four, four through holes being disposed in the base in a rectangular configuration.

5. An ossicular prosthesis according to claim 1 or 2, wherein a buffer spring is provided in the ball and socket joint.

6. A hyoid ossicular prosthesis according to claim 5, wherein the top disc is circular or oval in shape.

7. A hyoid ossicular prosthesis according to claim 6, wherein the ball and socket joint is located in a central or eccentric position with respect to the parietal disc.

8. A hyoid ossicular prosthesis according to claim 1, wherein the top disc ribs are S-shaped.