A device for external expansion of soft tissue on one side of the face

Abstract

This invention provides a device for external expansion of soft tissue on one side of the face, comprising pairs of spaced-apart fixators, with multiple supports connected between each pair of fixators, and at least one end of each support slidably connected to a fixator. Each support is equipped with at least one elastic traction device, which is equipped with a negative pressure suction cup. In this invention, by adjusting the positions of the supports and the elastic traction device, the negative pressure suction cup periodically applies mechanical traction before surgery, causing local tissue expansion and relaxation. This mechanically induces and stimulates cell regeneration, gently expanding the soft tissue volume and providing space for subsequent filling.

Description

Technical Field

[0001] This invention relates to medical devices, specifically to a device for external expansion of soft tissue on one side of the face. Background Technology

[0002] Progressive hemifacial atrophy is a rare disease with an incompletely understood etiology. Its main characteristic is the progressive atrophy of the skin, subcutaneous tissue, fat, muscle, and even bone and cartilage on one side of the face. Currently, the primary treatment for progressive hemifacial atrophy is surgery, mainly involving fat grafting and free fat-fascial flap transplantation. However, due to the thinning and atrophied skin in the affected area, accompanied by pigmentation and scleroderma-like symptoms, decreased elasticity, and adhesion of the fascia to subcutaneous tissue and even bone, the filling space is insufficient, and blood supply is poor, failing to provide nutrition to the transplanted fat cells. This often leads to a low fat survival rate and limited improvement. Therefore, improving cell activity in the affected area to expand the filling space is a pressing issue that needs to be addressed before surgical intervention. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a device for external expansion of soft tissue on one side of the face, which performs multiple negative pressure tractions in multiple directions before the operation to stimulate cell regeneration and active growth in the lesion area and expand the filling space through mechanical induction.

[0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a device for external expansion of soft tissue on one side of the face, comprising a pair of spaced-apart fixing members, a plurality of brackets connected between each pair of fixing members, and at least one end of each bracket being slidably connected to the fixing member, and at least one elastic traction device being mounted on each bracket, wherein the elastic traction device is equipped with a negative pressure suction cup.

[0005] The beneficial effects of this invention are: by adjusting the position of the support and the elastic traction device, the negative pressure suction cup performs mechanical traction regularly before the operation, which expands and relaxes the tissue in the local area, mechanically induces and stimulates cell regeneration, and can gently pull and expand the soft tissue volume, providing space for subsequent filling.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, it also includes an anti-allergy adhesive film, through which the negative pressure suction cup adheres to the skin to be stretched.

[0008] The beneficial effect of adopting the above-mentioned further solutions is that the anti-allergy adhesive film can reduce bruising and swelling caused by repeated negative pressure suction on the skin.

[0009] Furthermore, the elastic traction device includes a fixed part, an elastic part, and a negative pressure suction cup. The elastic part is fixedly connected between the fixed part and the negative pressure suction cup, and the fixed part is used to connect with the bracket.

[0010] The advantages of adopting the above-mentioned further solution are that it has the advantage of simple structure and can ensure that a suitable tensile force is provided.

[0011] Furthermore, the fixing part is slidably connected to the bracket.

[0012] The advantages of adopting the above-mentioned further solution are that it has a simple structure and allows for easy adjustment of the position of the elastic traction device.

[0013] Furthermore, the middle part of the bracket is a sliding rod, and the fixing part is provided with a through hole for the sliding rod to slide through.

[0014] The advantage of adopting the above-mentioned further solution is that it facilitates the adjustment of the position of the elastic traction device and also prevents the elastic traction device from falling off the slide bar.

[0015] Furthermore, the fixing part is detachably connected to the bracket.

[0016] The advantages of adopting the above-mentioned further solution are that it has the advantages of simple structure and low cost, convenient adjustment of the position of the elastic traction device, and quick replacement of the elastic traction device.

[0017] Furthermore, the bracket has a magnetic attraction area in the middle, and the fixing part is equipped with a magnet; or, the bracket has multiple mounting holes in the middle, and the fixing part is detachably disposed in the mounting holes.

[0018] The advantages of adopting the above-mentioned further solution are that it has the advantages of simple structure and low cost, and it is convenient to replace or maintain the elastic traction device as needed.

[0019] Furthermore, the elastic part is a spring.

[0020] The advantages of adopting the above-mentioned further solution are that it has the advantages of simple structure and low cost, and can provide a suitable traction force.

[0021] Furthermore, each of the fixing components is provided with a slide rail, and each bracket has sliding parts at both ends, the sliding parts being slidably assembled in the slide rail.

[0022] The advantages of adopting the above-mentioned further scheme are that it has the advantages of simple structure and convenient adjustment.

[0023] Furthermore, a positioning structure is provided between the slide rail and the sliding part, and the positioning structure restricts the sliding part from sliding along the slide rail.

[0024] The advantage of adopting the above-mentioned further solution is that by stabilizing the position of the support and the fixing, a stable traction force is ensured for the elastic traction device. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a device for external expansion of soft tissue on one side of the face according to the present invention; Figure 2 This is a side view of a device for external expansion of soft tissue on a half-sided face according to the present invention; Figure 3 This is a schematic diagram of the elastic traction device in the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the elastic traction device in the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the elastic traction device in the present invention. Figure 3 ; Figure 6 This is a schematic diagram of the positioning groove in this invention.

[0026] The attached diagram lists the components represented by each number as follows: 1. Fixing component; 10. Slide rail; 11. First fixing component; 12. Second fixing component; 13. Positioning groove; 2. Bracket; 21. Sliding part; 3. Anti-allergy adhesive film; 4. Elastic traction device; 41. Fixing part; 42. Elastic part; 43. Negative pressure suction cup; 5. Skin to be pulled. Detailed Implementation

[0027] The principles and features of the present invention are described below. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0028] Example 1 This embodiment provides a device for external expansion of soft tissue on one side of the face, including pairs of spaced-apart fixators 1. Multiple supports 2 are connected between each pair of fixators 1, and at least one end of each support 2 is slidably connected to a fixator 1. Each support 2 is equipped with at least one elastic traction device 4, and the elastic traction device 4 is equipped with a negative pressure suction cup 43. Thus, by adjusting the positions of the supports 2 and the elastic traction device 4, the negative pressure suction cup 43 periodically applies mechanical traction before surgery, causing local tissue expansion and relaxation. Mechanical induction stimulates cell regeneration, gently expanding the soft tissue volume and providing space for subsequent filling.

[0029] Specifically, such as Figure 1-6As shown, a device for external expansion of soft tissue on one side of the face includes a fixation assembly. The fixation assembly includes a support member and a pair of fixation members 1. The support member is supported on the ground, a wall, or other fixation points. The pair of fixation members 1 are disposed on the support member, with one fixation member 1 corresponding to the forehead and the other fixation member 1 corresponding to the chin. Preferably, the interval between the two fixation members 1 can be adjusted according to the actual situation to adapt to different patients. Multiple brackets 2 are connected between each pair of fixation members 1. The two ends of each bracket 2 are connected to the fixation members 1 respectively. The middle part of each bracket 2 can cover the area between the forehead and the chin. At least one end of each bracket 2 is slidably connected to the fixation member 1. By adjusting the position of the bracket 2, the middle part of the bracket 2 can cover different areas of the face. At least one elastic traction device 4 is assembled in the middle of each bracket 2. Each elastic traction device 4 is equipped with a negative pressure suction cup 43. The negative pressure suction cup 43 is made of soft material, such as PVC, rubber, etc. When in use, by squeezing the negative pressure suction cup 43, the air inside the negative pressure suction cup 43 is expelled. Then, the elasticity of the negative pressure suction cup 43 is used to restore its original shape, forming a low-pressure area inside, thereby attaching to the skin 5 to be pulled.

[0030] In this embodiment, as Figure 1 As shown, each of the fixing components 1 is provided with a slide rail 10, and each bracket 2 has sliding parts 21 at both ends. The sliding parts 21 are slidably assembled in the slide rail 10, which has the advantages of simple structure and convenient adjustment. Specifically, as shown... Figure 1 , 2 As shown, the pair of fixing members 1 are divided into a first fixing member 11 and a second fixing member 12 with different lengths, wherein the length of the first fixing member 11 is greater than the length of the second fixing member 12. A slide rail 10 is provided on the same side of the first fixing member 11 and the second fixing member 12, and the two ends of the bracket 2 are respectively slidably engaged with the two slide rails 10.

[0031] Preferably, a positioning structure is provided between the slide rail 10 and the sliding part 21, which restricts the sliding part 21 from sliding along the slide rail 10. In this way, by stabilizing the position of the bracket 2 and the fixing member 1, a stable pulling force is ensured for the elastic traction device 4.

[0032] In this embodiment, the positioning structure can use a bolt and nut combination. For example, a through groove corresponding to the slide rail 10 is provided on the bottom surface of the slide rail 10, and a positioning bolt is provided on the sliding part 21. That is, the positioning bolt is fixed in the sliding part 21, and the tail of the positioning bolt passes through the through groove. When the bracket 2 slides to the predetermined position, a nut is installed on the tail of the positioning bolt to complete the positioning.

[0033] like Figure 1 , 2As shown, in this embodiment, an anti-allergy adhesive film 3 is also included, and the negative pressure suction cup 43 is adhered to the skin 5 to be stretched via the anti-allergy adhesive film 3. Thus, the anti-allergy adhesive film 3 can reduce bruising and swelling caused by repeated negative pressure suction on the skin. Preferably, the size of the anti-allergy adhesive film 3 is larger than the size of the negative pressure suction cup 43, so that multiple negative pressure suction cups 43 can share one anti-allergy adhesive film 3; the anti-allergy adhesive film 3 can be made of thermoplastic polyurethane.

[0034] Combination Figure 1-5 An elastic traction device 4 is provided for use in this embodiment. The elastic traction device 4 includes a fixing part 41, an elastic part 42, and a negative pressure suction cup 43. The elastic part 42 is fixedly connected between the fixing part 41 and the negative pressure suction cup 43. The fixing part 41 is used to connect to the bracket 2. In this way, it has the advantage of simple structure and can ensure that a suitable pulling force is provided.

[0035] like Figure 1-5 As shown, the elastic traction device 4 includes a disc-shaped fixing part 41, which is used to connect with the bracket 2. The elastic part 42 is fixedly connected between the fixing part 41 and the negative pressure suction cup 43. The negative pressure suction cup 43 includes a disc body, which is bowl-shaped or dome-shaped. One side of the disc body is concave inward, and the edge is thin and soft. The disc body is made of a soft and elastic material. The other side of the disc body is connected to the elastic part 42 at its center.

[0036] In this embodiment, the fixing part 41 is slidably connected to the bracket 2. This results in a simple structure and convenient adjustment of the position of the elastic traction device 4. Preferably, the fixing part 41 is slidably connected to the bracket 2 and cannot be separated, thereby preventing the elastic traction device 4 from separating from the bracket 2 when pulling the skin. Specifically, the fixing part 41 can be slidably embedded in the bracket 2, or the fixing part 41 has a connecting ring through which the bracket 2 passes.

[0037] Furthermore, the middle part of the bracket 2 is a sliding rod, and the fixing part 41 is provided with a through hole for the sliding rod to slide through. This facilitates adjustment of the position of the elastic traction device 4 and also prevents the elastic traction device 4 from falling off the sliding rod. Figure 1 , 2 As shown, the fixing part 41 has a through hole in the middle, and the central axis of the through hole is perpendicular to the central axis of the elastic part 42. The outer diameter of the slide rod is equal to or slightly larger than the inner diameter of the through hole, so that the fixing part 41 can only slide along the slide rod under the action of external force, avoiding the elastic traction device 4 from sliding along the slide rod under the influence of gravity. At the same time, by directly setting the through hole on the fixing part 41, the connecting ring can be omitted, which helps to reduce costs.

[0038] In this embodiment, the elastic part 42 is a spring. This provides the advantages of simple structure and low cost, while also offering a suitable tensile force. Specifically, the elastic part 42 can be a linear spring, and the length of the spring varies depending on the elastic force, such as... Figure 3-5 As shown, Figure 3 The longest spring in the middle is used to provide a greater elastic force. Figure 5 The spring in this case has the shortest length and is used to provide a relatively small elastic force. Figure 4 The spring is of moderate length, designed to provide moderate elastic force.

[0039] Preferably, when each support 2 is provided with an elastic traction device 4, multiple supports 2 are provided with multiple elastic traction devices 4 with different elastic forces; or, each support 2 is provided with two or more elastic traction devices 4, and the elastic force of the elastic traction device 4 on each support 2 is different, thereby facilitating the satisfaction of different traction forces.

[0040] Example 2 like Figure 1 , 2 As shown in Figure 6, this embodiment provides a device for external expansion of soft tissue on one side of the face, including a pair of spaced-apart fixation members 1, with multiple supports 2 connected between each pair of fixation members 1, and at least one end of each support 2 slidably connected to the support 2. Each support 2 is equipped with at least one elastic traction device 4, and the elastic traction device 4 is equipped with a negative pressure suction cup 43. In this embodiment, by adjusting the position of the support 2 and the elastic traction device 4, the negative pressure suction cup 43 performs mechanical traction periodically before the operation, so as to expand and relax the tissue in the local area, mechanically induce and stimulate cell regeneration, and gently pull and expand the soft tissue volume to provide space for subsequent filling.

[0041] In this embodiment, the fixing member 1, the bracket 2, and the elastic traction device 4 are slightly modified based on the above embodiment.

[0042] Specifically, the paired fixing members 1 are divided into a first fixing member 11 and a second fixing member 12 of different lengths, and each fixing member 1 is equipped with a slide rail 10. Each bracket 2 has a sliding part 21 at both ends, such as... Figure 6As shown, in this embodiment, the positioning structure uses a positioning shaft and a positioning groove 13 for positioning. For example, the inner diameter of the slide rail 10 is larger than the outer diameter of the sliding part 21, so that when the sliding part 21 moves horizontally along the slide rail 10, it also has space to move in the direction of gravity. Multiple spaced arc-shaped grooves are provided in the slide rail 10, with the openings of the arc-shaped grooves facing upwards as positioning grooves 13. The positioning shaft is configured on the sliding part 21. When it is necessary to adjust the position of the bracket 2, the bracket 2 is first slightly lifted to separate the positioning shaft on the sliding part 21 from the arc-shaped groove. Then, the sliding part 21 is pushed and pulled until it reaches the appropriate position, so that the positioning shaft is inserted into the arc-shaped groove again, thereby completing the positioning.

[0043] In this embodiment, the middle part of the bracket 2 is a rod with a certain width, and the elastic traction device 4 has the same structure as in the above embodiment, but the fixing part 41 is detachably connected to the bracket 2. This provides the advantages of simple structure and low cost, facilitates adjustment of the position of the elastic traction device 4, and allows for quick replacement of the elastic traction device 4.

[0044] Specifically, the bracket 2 has a magnetic attraction area in the middle, and the fixing part 41 is equipped with a magnet. The magnet attracts the fixing part 41 to the magnetic attraction area of ​​the bracket 2, which facilitates the adjustment of the position of the elastic traction device 4. However, there is a risk that the elastic traction device 4 may fall off. Alternatively, the bracket 2 has multiple mounting holes in the middle, and the fixing part 41 is detachably installed in the mounting holes. For example, the mounting holes are threaded holes, and the fixing part 41 is provided with external threads. The detachable connection is achieved through threaded connection. This has the advantages of simple structure and low cost, and it is convenient to replace or maintain the elastic traction device 4 as needed. However, its adjustable range is limited by the setting position of the mounting holes.

[0045] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0047] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0048] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0049] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0050] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A device for external expansion of soft tissue on one side of the face, characterized in that, It includes a pair of spaced-apart fasteners (1), with a plurality of brackets (2) connected between each pair of fasteners (1), and at least one end of each bracket (2) being movably connected to the fastener (1). Each bracket (2) is equipped with at least one elastic traction device (4), and the elastic traction device (4) is equipped with a negative pressure suction cup (43).

2. The device for external expansion of soft tissue on one side of the face according to claim 1, characterized in that, It also includes an anti-allergy adhesive film (3), and the negative pressure suction cup (43) is attached to the skin (5) to be pulled through the anti-allergy adhesive film (3).

3. The device for external expansion of soft tissue on one side of the face according to claim 1, characterized in that, The elastic traction device (4) includes a fixing part (41), an elastic part (42) and a negative pressure suction cup (43). The elastic part (42) is fixedly connected between the fixing part (41) and the negative pressure suction cup (43). The fixing part (41) is used to connect with the bracket (2).

4. The device for external expansion of soft tissue on one side of the face according to claim 3, characterized in that, The fixing part (41) is slidably connected to the bracket (2).

5. The device for external expansion of soft tissue on one side of the face according to claim 4, characterized in that, The middle part of the bracket (2) is a sliding rod, and the fixing part (41) is provided with a through hole for the sliding rod to slide through.

6. The device for external expansion of soft tissue on one side of the face according to claim 3, characterized in that, The fixing part (41) is detachably connected to the bracket (2).

7. The device for external expansion of soft tissue on one side of the face according to claim 6, characterized in that, The bracket (2) has a magnetic attraction area in the middle, and the fixing part (41) is equipped with a magnet; or, the bracket (2) has multiple mounting holes in the middle, and the fixing part (41) is detachably disposed in the mounting holes.

8. The device for external expansion of soft tissue on one side of the face according to claim 3, characterized in that, The elastic part (42) is a spring.

9. The device for external expansion of soft tissue on one side of the face according to claim 1, characterized in that, Each of the fixing components (1) is provided with a slide rail (10), and each bracket (2) is provided with a sliding part (21) at both ends, the sliding part (21) being slidably assembled in the slide rail (10).

10. The device for external expansion of soft tissue on one side of the face according to claim 9, characterized in that, A positioning structure is provided between the slide rail (10) and the sliding part (21), and the positioning structure restricts the sliding part (21) from sliding along the slide rail (10).

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