CN210096077U

CN210096077U - Earmuff for preventing ear scar contracture

Info

Publication number: CN210096077U
Application number: CN201920306216.9U
Authority: CN
Inventors: 许佳; 樊佳俊; 韩冬; 杨佳菲
Original assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Current assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Priority date: 2019-03-11
Filing date: 2019-03-11
Publication date: 2020-02-21
Anticipated expiration: 2029-03-11

Abstract

The utility model discloses an earmuff for preventing ear scar contracture, which comprises an earmuff front piece, wherein the earmuff front piece comprises a first plane and a first cambered surface, and at least one first fixing hole is arranged on the first plane and/or the first cambered surface; the rear piece of the earmuff comprises a second plane and a second cambered surface, and at least one second fixing hole is formed in the second plane and/or the second cambered surface; the fixing part is connected with the front earmuff piece and the rear earmuff piece and is used for fixing the front earmuff piece and the rear earmuff piece through a first fixing hole and a second fixing hole; the earmuff for preventing ear scar contracture is more fit to the outline of the auricle of a patient, so that the oppression and discomfort of other tissues can not be caused, and the earmuff is not easy to drop in daily wearing.

Description

Earmuff for preventing ear scar contracture

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to earmuff of prevention ear's scar contracture.

Background

Common external ear deformities include congenital small ear deformities and trauma or burned auricular defects, and partial or complete reconstruction of the auricle is generally required. The complex ear structure makes auricle reconstruction one of the most challenging reconstructive procedures in plastic surgery. No exposed organ of the human body has such a complicated and fine external shape as a normal auricle. With the development of technology, the exquisite combination of orthopedic techniques and art has made the morphology of the reconstructed auricle nearly natural and realistic. However, after auricle reconstruction, the covered skin on the surface has considerable tension, and the skin tends to be stretched and flat, so that the concave part of the surface structure of the ear support is shallow or disappears, and the three-dimensional configuration of the support is difficult to be fully exposed. Meanwhile, the contracture of skin sheets and the traction of scars in the skin grafting area can cause auricles to be close to the skull, and the skull and ear angles are not obvious or disappear, so that the operation effect is greatly reduced, and some skin grafting even needs to be performed again. Therefore, it is necessary to develop a method for preventing scar contracture after ear reconstruction and maintaining the shape of the external ear to achieve the best postoperative rehabilitation effect.

There is an improved medical earmuff (patent No. zl201420138470.x), which is composed of a head cover, earmuffs, a chin pad, a lace and a bonding pad (made of soft silica gel) to form multi-point fixation of the head, the chin and an affected ear. The surfaces of the ear muffs are provided with a plurality of inverted water drop-shaped air holes with the diameter of 5mm, and the sizes of the ear muffs are 8.5cm multiplied by 10cm multiplied by 5cm so as to meet the manufacturing standard of most reconstructed auricles. However, the product has a complex structure and is troublesome to wear, the contact parts such as a chin pad and a head cover are uncomfortable to feed back when a patient is used, the fixation is not firm when the patient sleeps, and the position of the auricle fixation is easy to change.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned problem, provide the earmuff of prevention ear's scar contracture, it adopts.

In order to achieve the purpose, the utility model adopts the following technical scheme.

The earmuff for preventing the scar contracture of the ear comprises an earmuff front piece, wherein the earmuff front piece comprises a first plane and a first cambered surface, and at least one first fixing hole is formed in the first plane and the first cambered surface; the rear piece of the earmuff comprises a second plane and a second cambered surface, and at least one second fixing hole is formed in the second plane and the second cambered surface; the fixing part is connected with the ear muff front piece and the ear muff rear piece and is used for fixing the ear muff front piece and the ear muff rear piece through the first fixing hole and the second fixing hole.

Further, the shape of the first plane is matched with the front side of the auricle, and the first plane is provided with at least one first lug with a preset height; the first plane and the first cambered surface are integrally formed, the shape of the first cambered surface is matched with the shape of the inner side of the auricle, and the first cambered surface is provided with at least one first lug with a preset height.

Further, the second plane is matched with the rear side of the auricle, at least one second lug with a preset height is arranged on the second plane, the second plane and the second cambered surface are integrally formed, the appearance of the second cambered surface is matched with the outer side of the auricle, and at least one second lug with a preset height is arranged on the second cambered surface.

Further, the predetermined height of the first lug and the second lug is 2cm-3cm, and the first lug and/or the second lug are arched.

Furthermore, the first fixing hole is formed in the first lug, the second fixing hole is formed in the second lug at a position corresponding to the first fixing hole, and the diameters of the first fixing hole and the second fixing hole are the same.

Further, the diameters of the first fixing hole and the second fixing hole are 0.3cm-0.4 cm.

Further, the fixed part includes button head screw and nut, the button head screw follow the first fixed orifices of ear muff anter passes, penetrates again the second fixed orifices of ear muff back part, the nut with the cooperation of button head screw, the nut forces through the revolving force the ear muff back part to the ear muff anter is close to, adjusts the ear muff anter with the distance of ear muff back part.

The utility model discloses the positive effect of ear muff of prevention ear's scar contracture is:

(1) the appearance of patient's auricle is more laminated to ear muff anter and ear muff back part, and the ear muff only acts on the auricle, can provide better supporting role in the auricle recovery stage, can not cause the oppression and the discomfort of other tissues.

(2) First cambered surface and second cambered surface are made according to the appearance of patient's auricle, effectively provide the power of fixing, adjust fixed part to suitable position after, daily wear is difficult for dropping.

(3) The ear muff laminating auricle appearance setting of prevention ear scar contracture can effectively prevent postoperative scar hyperplasia, contracture, can effectively fix original auricle shape.

Drawings

Fig. 1 is a schematic view of the ear muffs for preventing ear scar contracture of the utility model when in combined use.

Fig. 2 is a schematic view of the front part of the ear muff for preventing the scar contracture of the ear.

Fig. 3 is a schematic view of the ear muff rear piece of the ear muff for preventing the scar contracture of the ear.

The reference numerals in the figures are respectively:

1. an earmuff front piece; 11. a first plane;

12. a first arc surface; 13. a first lug;

14. a first fixing hole; 2. an earmuff rear door;

21. a second plane; 22. a second arc surface;

23. a second lug; 24. a second fixing hole;

3. a fixed part; 31. a round head screw;

32. and (4) a nut.

Detailed Description

The following provides a specific embodiment of the ear muff for preventing the ear scar contracture according to the present invention with reference to the attached drawings, but it should be noted that: the described embodiments are not intended to limit the practice of the invention. All adopt the utility model discloses a similar structure and similar change all should go into the utility model discloses a protection scope. The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. In the embodiments, directional terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc. refer to directions of the attached drawings only. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention.

See fig. 1, 2 and 3. The earmuff for preventing the scar contracture of the ear comprises an earmuff front piece 1, wherein the earmuff front piece 1 comprises a first plane 11 and a first cambered surface 12, and at least one first fixing hole 14 is formed in the first plane 11 and/or the first cambered surface 12; the rear earmuff piece 2 comprises a second plane 21 and a second cambered surface 22, and at least one second fixing hole 24 is formed in the second plane 21 and/or the second cambered surface 22; a fixing portion 3, the fixing portion 3 is connected to the front ear cover sheet 1 and the rear ear cover sheet 2, and the front ear cover sheet 1 and the rear ear cover sheet 2 are fixed through the first fixing hole 14 and the second fixing hole 24. The first fixing hole 14 is formed in the first lug 13, and the second fixing hole 24 is formed in the second lug 23 at a position corresponding to the first fixing hole 14.

See fig. 2. Earmuff anter 1 chooses for use for photosensitive resin or other convenient 3D printer processing's printing material, the appearance of first plane 11 and patient's auricle front side skin laminating, first plane 11 both ends set up respectively one highly be 2cm-3 cm's first lug 13, and the number that first lug 13 set for and the height of first lug 13 are confirmed according to the size of whole earmuff and patient's size and the stability of earmuff. The first lug 13 is arched, and two side edges of the first lug 13 are smooth planes. The first fixing hole 14 is a through hole and is located at the center of the first lug 13. The diameter of the first fixing hole 14 is 0.3-0.4cm, and the specific size is determined according to the size of the whole ear cup, the body size of the patient and the fixing part. Under the condition that there is the auxiliary ear in the patient, need set up corresponding hole of stepping down (not shown) on first plane 11, the hole of stepping down also can play the effect of fixed ear muff and improvement laminating nature, and the setup of the hole of stepping down can reduce seting up of first lug 13 and first fixed orifices 14. The first plane 11 and the first cambered surface 12 are integrally formed, the first cambered surface 12 is far away from the first plane 11 and is manufactured at a certain angle with the first plane 11, and the specific angle is determined according to the internal structure of the auricle. The shape of the first cambered surface 12 is matched with the shape of the inner side of the auricle, a first convex lug 13 with the height of 2cm-3cm is arranged on the first cambered surface 12 away from the first plane 11, and the set number of the first convex lugs 13 and the height of the first convex lugs 13 are determined according to the size of the whole earmuff, the body type of a patient and the stability of the earmuff. The center of the first lug 13 is provided with a first fixing hole 14.

See fig. 3. The printing material that is photosensitive resin or other convenient 3D printer processing is selected for use to ear muff back part 2, the appearance of second plane 21 and patient's auricle rear side skin laminating, second plane 21 both ends set up a second lug 23 that highly is 2cm-3cm respectively, and the number that second lug 23 set for and the height of second lug 23 are confirmed according to the size of whole ear muff and patient's size and the stability of ear muff. The second lug 23 is arched, and two side edges of the second lug 23 are smooth planes. The second fixing hole 24 is a through hole and is located at the center of the second lug 23, the diameter of the second fixing hole 24 is 0.3-0.4cm, and the specific size is determined according to the size of the whole ear cup, the size of the patient and the fixing part. The second plane 21 and the second cambered surface 22 are integrally formed, the second cambered surface 22 is far away from the second plane 21 and is manufactured at a certain angle with the second plane 21, and the specific angle is determined according to the internal structure of the auricle. The shape of the second cambered surface 22 is matched with the shape of the outer side of the auricle, a second lug 23 with the height of 2cm-3cm is arranged on the second cambered surface 22 far away from the second plane 21, and the set number of the second lugs 23 and the height of the second lugs 23 are determined according to the size of the whole earmuff, the body type of a patient and the stability of the earmuff. The center of the second lug 23 is provided with a second fixing hole 24.

See fig. 1, 2 and 3. The first fixing hole 14 and the second fixing hole 24 have the same diameter, and the second fixing hole 24 is formed at a position corresponding to the first fixing hole 14. Fixed part 3 includes button head screw 31 and nut 32, button head screw 31 diameter is 0.3cm, and length is 1.6cm, when concrete implementation, can adopt the screw of other models and other specifications according to actual conditions, is not limited to the button head screw. The round head screw 31 has smooth surface and no cutting edge, and cannot damage other parts. Round head screw 31 penetrates from the left side of ear muff anter 1, penetrates first fixed orifices 14, penetrates the second fixed orifices 24 of ear muff back part 2 again, nut 32 is from the right-hand member screw in of ear muff back part 2 31 in the round head screw, and with the cooperation of round head screw 31, nut 32 forces ear muff back part 2 to be close to ear muff anter 1 through the revolving force. Adjust a plurality of fixed parts 3 simultaneously, auricle is hugged closely to ear muff anter 1 and ear muff back part 2 to the earflap is the boundary, and simultaneously, ear muff anter 1 presss from both sides tightly to comfortable scope with ear muff back part 2. After auricle reconstruction, because of contracture of skin and scar traction in the skin grafting area behind the ear, auricle is close to the skull, and the skull and ear angle are not obvious or disappear, thereby greatly reducing the operation effect, and some operations even need to be performed again. At present, the method mainly adopts a packing and pressurizing method for fixation in one week after operation, and protective earmuffs are worn in the later period to keep the reconstructed ear structure in place and maintain the forming. However, the existing protective earmuffs have the defects of low precision, incapability of completely matching complex shapes of auricles, incapability of pressurizing and fixing the appearance of the auricles and the like, and the recovery requirement of postoperative patients cannot be met.

The utility model discloses the ear muff of prevention ear's scar contracture uses 3D printing technique can provide more individualized, accurate appurtenance for the patient, has good fixing device, and comfort level and accuracy are superior to the tradition and assist the utensil to more be favorable to plastic postoperative patient's recovery, and then improve operation effect and patient satisfaction, reduce the possibility of secondary operation. After 2 weeks of ear reconstruction, the affected ear was first scanned using a Creafrom handyscan 700 hand-held laser three-dimensional scanner, the appearance of the protective earmuff was designed using 3D Design software such as Geomagic Design, and the earmuff was then printed using a Stratasys Fortus 380 3D printer using ABS-M30i as a printing material which is a thermoplastic with good mechanical strength and which meets ISO 10993 and United states Pharmacopeia Plastic VI. The utility model discloses it is preceding that the earmuff anter 1 of the earmuff of prevention ear scar contracture hugs closely the auricle, vacates the position of tragus, concha, external auditory canal and earlobe, and earmuff back part 2 is hugged closely the auricle and is fixed cranium ear angle at the back. The projection planes of the earmuff front piece 1 and the earmuff rear piece 2 are oval, the whole auricle is wrapped, the width of the peripheral edge is about 2CM, 6 fixed round holes are respectively arranged at the upper, middle and lower positions of the earmuff, and the diameter is 0.3 CM. During the use, the position of two front and back earmuffs is put well earlier, owing to be 3D scanning design, 3D prints, so around the homoenergetic with the accurate laminating in each position of auricle, then with 3 long 1.6CM, the screw nut of diameter 0.3CM is fixed. The tightness of the front and the rear ear muffs is determined by the tightness of the three screws and nuts, and the patient can be adjusted to a comfortable position. After the ear muffs are worn properly, the reconstructed auricles can be firmly fixed and protected in place by the whole ear muffs, and the positions of the auricles can not be changed as long as violent movement and violent impact are not performed. The whole earmuffs are small and exquisite, do not have other accessory structures, do not influence sleep, are simple to disassemble, have stable performance, can be normally cleaned and disinfected, and are not easy to deform.

Claims

1. The earmuff for preventing the scar contracture of the ear is characterized by comprising an earmuff front piece, wherein the earmuff front piece comprises a first plane and a first cambered surface, and at least one first fixing hole is formed in the first plane and the first cambered surface; the rear piece of the earmuff comprises a second plane and a second cambered surface, and at least one second fixing hole is formed in the second plane and the second cambered surface; the fixing part is connected with the ear muff front piece and the ear muff rear piece and is used for fixing the ear muff front piece and the ear muff rear piece through the first fixing hole and the second fixing hole.

2. The earmuff for preventing contracture of the scar of the ear according to claim 1, wherein the first plane has a shape matching the front side of the auricle, and the first plane is provided with a first ear lobe having at least a predetermined height; the first plane and the first cambered surface are integrally formed, the shape of the first cambered surface is matched with the shape of the inner side of the auricle, and the first cambered surface is provided with at least one first lug with a preset height.

3. The earmuff for preventing contracture of the scar of the ear according to claim 2, wherein the second plane is engaged with the back side of the auricle, the second plane is provided with a second protruding ear with at least a predetermined height, the second plane is integrally formed with the second arc surface, the second arc surface is engaged with the outer side of the auricle, and the second arc surface is provided with a second protruding ear with at least a predetermined height.

4. The earmuff of preventing contracture of the scar of an ear of claim 3, wherein the predetermined height of the first ear and the second ear is 2cm-3cm, and the first ear and or the second ear are arcuate.

5. The earmuff for preventing contracture of the scar of the ear according to claim 4, wherein the first fastening hole is formed on the first ear lobe, the second fastening hole is formed on the second ear lobe at a position corresponding to the first fastening hole, and the first fastening hole and the second fastening hole have the same diameter.

6. The earmuff of preventing contracture of the scar of the ear of claim 5, wherein the diameter of the first fixing hole and the diameter of the second fixing hole are 0.3cm to 0.4 cm.

7. The earmuff of preventing scar contracture in the ear according to claim 1, wherein the fixing portion comprises a round head screw and a nut, the round head screw passes through the first fixing hole of the front piece of the earmuff and then passes through the second fixing hole of the back piece of the earmuff, the nut is engaged with the round head screw, and the nut forces the back piece of the earmuff to approach the front piece of the earmuff by a rotational force to adjust the distance between the front piece of the earmuff and the back piece of the earmuff.