CN201160922Y - artificial drum ring - Google Patents

Abstract

The utility model discloses an artificial drum ring. The artificial drum ring is a circular ring with a gap. By simulating the shape of the drum ring, the artificial drum ring can be inserted into the simulated tympanic groove or the wall of the external auditory canal to compress the transplanted artificial tympanic membrane. With the skin graft, the graft will heal closely with the bone wall at the compressed part, or necrosis will occur after compression, forming a scar and healing, thereby replacing the role of the fibrous drum ring. The size of the ring can be adjusted through the gap on the ring, so as to adapt to different ear canal sizes, and it is also convenient for blood vessels, nerves, and pedicled flaps at the compression site to pass through the gap to avoid compression. The handles at both ends of the notch of the ring make it easier to place and take out the artificial drum ring. The handle faces the inner side of the ring so that the handle does not interfere with the tight fit of the artificial drum ring to the wall of the ear canal.

Description

artificial drum ring

technical field

The utility model relates to the field of medical equipment, in particular to an artificial drum ring.

Background technique

At present, for patients with congenital external auditory canal atresia, the external auditory canal and tympanic membrane need to be reconstructed. Because there is no tympanic groove and tympanic ring structure, the reconstructed tympanic membrane (such as temporalis fascia) cannot be stuck into the tympanic groove, and it is difficult to form a normal shape and angle. Affect the patient's hearing; at the same time, because the inner side of the skin graft implanted in the external auditory canal has no tympanic groove and tympanic ring compression, the local part is not tightly attached to the bone wall, and the deep part is prone to granulation tissue hyperplasia, resulting in restenosis of the reconstructed external auditory canal, resulting in poor surgical results. Unsatisfactory or even failed.

In addition, for patients with tympanic membrane perforation, when the non-sandwich method is used for repair, after the prosthesis (such as temporal muscle fascia) is implanted, the tympanic membrane flap of the external auditory canal can no longer be stuck into the tympanic groove, and it is difficult for the tympanic membrane to form a normal shape and angle, which affects the patient's hearing.

In summary, since there is no suitable substitute for the drum ring at present, it is difficult to obtain good surgical results for the above two operations.

Utility model content

The embodiment of the utility model provides an artificial drum ring, which can replace the function of the drum ring.

In order to achieve the above object, the technical solution of the utility model is specifically realized in the following way:

An artificial drum ring is a circular ring with notches.

Preferably, handles are provided at both ends of the circular notch.

Preferably, the handle is arranged towards the inner side of the circular ring.

Preferably, the handle is circular.

It can be seen from the above-mentioned technical scheme that the artificial tympanic ring of the utility model simulates the shape of the tympanic ring, so that the artificial tympanic ring can be stuck into the simulated tympanic groove or the wall of the external auditory canal, and presses the transplanted artificial tympanic membrane and skin flap, so that the graft The compressed part is closely healed with the bone wall, or necrosis occurs after compression, forming a scar and healing, thereby replacing the role of the fibrous drum ring. The size of the ring can be adjusted through the gap on the ring, so as to adapt to different ear canal sizes, and at the same time, it is also convenient for blood vessels, nerves, and pedicled flaps at the compression site to pass through the gap to avoid compression. The handles at both ends of the notch of the ring can be held by tweezers, which can make the placement and removal of the artificial drum ring more convenient. The handle faces the inner side of the ring so that the handle does not interfere with the tight fit of the artificial drum ring to the ear canal wall.

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram of the artificial drum ring of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings and examples.

The embodiment of the utility model mainly uses the circular ring with gaps to simulate the shape of the drum ring, thereby replacing the function of the drum ring.

Fig. 1 is the three-dimensional structure schematic diagram of the artificial drum ring of the utility model embodiment, as shown in Fig. 1, preferably, this drum ring is a circular ring 1, and outer diameter can be 10mm, and there is a gap on the circular ring 1, about 1/5 of the circumference of the ring 1; the cross section of the ring 1 is circular, and the diameter can be 1.5 mm; handles 2 are provided at both ends of the gap of the ring 1, and the handle 2 can be ring-shaped, with a diameter of about 1 mm .

Wherein, the outer diameter of the ring 1 can be determined according to the situation, and its cross section can also be elliptical, rectangular or other arbitrary polygonal shapes, and the outer side of the ring 1 can also be provided with sawtooth, grooves, etc. , can increase the friction between the ring 1 and the wall of the ear canal, so that the ring is not easy to slide. The ring 1 can be made of any elastic and tough material, such as medical titanium alloy and memory alloy.

The length of the gap on the ring 1 can be determined according to the needs, generally between 1/5 to 1/3 of the circumference length, so that the diameter of the ring 1 can be adjusted according to the size of the ear canal, adapting to different ear canal sizes, and is also convenient for clamping Blood vessels, nerves, and pedicled skin flaps at the compression site pass through the gap to avoid being compressed by the ring 1.

The handle 2 on the ring 1 is used to clamp the ring 1. When placing the ring 1 into the drum groove, it is convenient to use tools such as tweezers to put it into the handle 2, close the gap of the ring and put it into the drum groove. Then loosen the tweezers, and the ring 1 can be stuck in the drum groove. When taking it out, the gap of the ring 1 can also be closed by the handle 2, so that the ring 1 can be easily taken out. The handle 2 can be made into any shape according to the operating tool, but it should be ensured that the handle 2 faces the inner side of the ring 1 as much as possible, so as to prevent the handle 2 from making the ring 1 not fit closely with the ear canal wall and affecting the surgical effect.

Specifically, the handle 2 can be welded or bonded to the notch of the ring 1 , and can also be integrally formed with the ring 1 , for example, wound by using the notch end of the ring 1 .

During the reconstruction of the external auditory canal, a groove-like structure (simulating the tympanic groove) with a size of about 2-3 mm is ground on the medial end of the reconstructed bony external auditory canal. The artificial tympanic ring snaps into the simulated tympanic groove, and compresses the transplanted artificial tympanic membrane and skin, so that the compressed part of the graft in the groove heals closely with the bone wall, or necrosis occurs after compression, forming a scar to heal, thereby replacing the fibrous tympanic membrane. The function of the ring can keep the transplanted tympanic membrane and skin flap in tension, and the skin flap is closely attached to the bone wall of the external auditory canal, thereby preventing the gradual narrowing from the inside to the outside, and making the reconstructed tympanic membrane and external auditory canal closer to the natural state, achieving good results. effect of surgery.

In the non-sandwich method of tympanic membrane repair due to tympanic membrane perforation, the tympanic membrane flap of the external auditory canal can no longer be stuck in the tympanic groove, and the artificial drum ring can be directly stuck in the position equivalent to the tympanic groove, and a certain pressure can also be maintained. produce a similar effect.

It can be seen from the above-mentioned embodiments that the artificial drum ring of the utility model simulates the shape of the drum ring, so that the artificial drum ring can be inserted into the simulated tympanic groove or the wall of the external auditory canal, and compresses the transplanted artificial tympanic membrane and skin flap, so that the graft The compressed part is closely healed with the bone wall, or necrosis occurs after compression, forming a scar and healing, thereby replacing the role of the fibrous drum ring. The size of the ring can be adjusted through the gap on the ring, so as to adapt to different ear canal sizes, and at the same time, it is also convenient for blood vessels, nerves, and pedicled flaps at the compression site to pass through the gap to avoid compression. The handles at both ends of the notch of the ring make it easier to place and take out the artificial drum ring. The handle faces the inner side of the ring so that the handle does not interfere with the tight fit of the artificial drum ring to the ear canal wall.

It should be understood that the above description is only a preferred embodiment of the present utility model, and is not intended to limit the protection scope of the present utility model. Any modifications, Equivalent replacements, improvements, etc., should all be included within the protection scope of the present utility model.

Claims (10)

1, a kind of artificial tympanic ring is characterized in that, this tympanic ring is to contain jagged annulus.

2, artificial tympanic ring as claimed in claim 1 is characterized in that, described annulus breach two ends are provided with handle.

3, artificial tympanic ring as claimed in claim 2 is characterized in that, described handle is provided with towards the inboard of described annulus.

4, artificial tympanic ring as claimed in claim 2 is characterized in that, described handle is circular.

5, artificial tympanic ring as claimed in claim 2 is characterized in that, described handle is that the coiling of described annulus breach end forms.

6, artificial tympanic ring as claimed in claim 2 is characterized in that, described handle and described annulus welding or bonding linking to each other.

7, artificial tympanic ring as claimed in claim 1 or 2 is characterized in that, the cross section of described annulus is circular.

8, artificial tympanic ring as claimed in claim 1 or 2 is characterized in that, the cross section of described annulus is ellipse or polygon.

9, artificial tympanic ring as claimed in claim 1 or 2 is characterized in that, the outside of described annulus is provided with sawtooth or groove.

10, artificial tympanic ring as claimed in claim 1 or 2 is characterized in that, described annulus adopts medical titanium alloy or memorial alloy manufacturing.

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