Negative pressure type brace

Abstract

The utility model discloses a negative pressure type brace. The negative pressure type brace comprises a brace body, the brace body is of a double-layer structure, a sealed cavity is formed between the inner layer and the outer layer of the brace body, and the cavity is filled with granular filler; in addition, the extraction opening is formed in the outer layer of the brace body, so that the brace body can achieve negative-pressure air extraction and normal-pressure recovery through the extraction opening. Compared with a traditional gypsum or hard brace, the negative pressure type brace provided by the utility model is more convenient to wear and can be shaped according to the shape of a limb, so that compression on a protruding part of the limb can be more effectively avoided, compression injury and discomfort related to the gypsum or hard brace can be reduced, more comfortable wearing experience can be provided, and the negative pressure type brace is suitable for being used in the field of medical equipment. Skin scratches and pressure points are reduced, a user can flexibly use the support at different times and under different situations, and the tightness of the support can be conveniently adjusted by changing the negative pressure in the cavity.

Description

Technical Field

[0001] This utility model relates to the field of rehabilitation medical equipment technology, and in particular to a negative pressure brace. Background Technology

[0002] Currently, in clinical practice, the most common conservative treatment for patients with ligament injuries, muscle injuries, or minor fractures is manual reduction combined with plaster cast immobilization. Plaster cast immobilization effectively keeps the fracture ends and the positions of ligament and muscle injuries in a relatively stable state, preventing displacement of the fracture ends and further strain on the ligaments and surrounding soft tissues. However, manual plaster casting is time-consuming and labor-intensive. Depending on the degree of swelling, the tightness of the plaster needs to be readjusted, and each adjustment requires removing and replacing the plaster, incurring significant labor costs. Furthermore, differences in doctor experience can lead to complications during plaster cast immobilization; for example, an overly tight cast can affect blood circulation, potentially causing distal ischemia and necrosis in severe cases, while an overly loose cast will not provide adequate immobilization.

[0003] Another option is to use a brace, which is lighter and more breathable than a plaster cast. However, traditional braces are usually made of rigid materials such as plastic or metal, which may cause discomfort after prolonged wear; in addition, traditional braces have limitations in adjustment and adaptability. Utility Model Content

[0004] To address the problems mentioned in the background art, the technical solution adopted by this utility model is: a negative pressure brace, characterized in that it includes a brace body;

[0005] The support body has a double-layer structure, with a sealed cavity formed between the inner and outer layers of the support body, and the cavity is filled with granular filler.

[0006] Furthermore, an air extraction port is provided on the outer layer of the support body, enabling the support body to achieve negative pressure extraction and return to normal pressure through the air extraction port.

[0007] In some embodiments, the size of the filler is the size of a mung bean.

[0008] In some embodiments, a filter screen for preventing the filling material from passing through is also installed at the air extraction port.

[0009] In some embodiments, an air pump is also included, which is installed on the outer layer of the brace body. The position of the air pump corresponds to and is sealed to the air extraction port. The air pump is used to achieve negative pressure extraction of air from the cavity of the brace body through the air extraction port.

[0010] In some embodiments, the air pump is internally equipped with a battery, and a charging port corresponding to the battery is provided on the air pump housing.

[0011] In some embodiments, the surface of the brace body is provided with a plurality of vents, which connect the outer exterior of the brace body to the inner interior, but do not connect to the cavity between the inner and outer layers.

[0012] In some embodiments, the brace body is shoe-shaped, allowing it to accommodate the patient's foot and part of the lower leg.

[0013] In some embodiments, one of the ventilation openings is located at the toe of the shoe body of the shoe shape, and several other ventilation openings are located at the sole of the shoe body of the shoe shape.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the negative pressure brace provided by this utility model is more convenient to wear than traditional plaster or rigid braces, and can be shaped according to the shape of the limb. This can more effectively avoid pressure on protruding parts of the limb, reduce pressure injuries and discomfort associated with plaster or rigid braces, provide a more comfortable wearing experience, reduce skin abrasions and pressure points, and allow users to use it flexibly in different times and situations. Furthermore, the tightness of the brace can be easily adjusted by changing the amount of negative pressure in the cavity. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the negative pressure brace provided by this utility model.

[0016] Explanation of icon numbers:

[0017] 1. Support body; 2. Air extraction port; 3. Vent; 4. Air pump; 5. Charging port; 6. Filler. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with the accompanying drawings and specific embodiments, further explains how this utility model is implemented.

[0019] Reference Figure 1 As shown, this utility model provides a negative pressure brace, including a brace body 1; the brace body 1 has a double-layer structure, with a sealed chamber formed between the inner and outer layers of the brace body 1. Figure 1 The rectangular dashed box in the figure is used to show the structure inside the cavity, which is filled with granular filler 6; and an air extraction port 2 is provided on the outer layer of the support body 1, so that the support body 1 can achieve negative pressure air extraction and return to normal pressure through the air extraction port 2.

[0020] Furthermore, the size of the filler 6 is the size of a mung bean. A filter screen is also installed at the air extraction port 2 to prevent the filler 6 from passing through. In addition, both the inner and outer layers of the support body 1 can be made of a slightly elastic and soft material, such as rubber.

[0021] exist Figure 1 In the illustrated embodiment, the negative pressure brace further includes an air pump 4 installed on the outer layer of the brace body 1. The position of the air pump 4 corresponds to and is sealed to the air extraction port 2. The air pump 4 is used to achieve negative pressure suction in the cavity of the brace body 1 through the air extraction port 2. A battery may be installed inside the air pump 4, and a charging port 5 corresponding to the battery is provided on the outer casing of the air pump 4.

[0022] In other embodiments, instead of a dedicated air pump 4, an openable and closable air extraction port 2 can be used. The air extraction port 2 can be equipped with a corresponding sealing cover. When air extraction is needed, the air extraction port 2 can be opened and connected to an external air extraction device to achieve negative pressure air extraction. After the air extraction is completed, the air extraction port 2 can be closed. After use, the air extraction port 2 can be opened again to restore the pressure in the chamber to normal.

[0023] Preferably, the surface of the brace body 1 is also provided with a plurality of ventilation holes 3, which connect the outer exterior of the brace body 1 with the inner interior, but do not connect with the cavity between the inner and outer layers. In addition to the function of ventilation, the ventilation holes 3 also facilitate external observation of the affected area during use.

[0024] exist Figure 1 In the illustrated embodiment, the brace body 1 is shoe-shaped, allowing it to accommodate the patient's foot and part of the lower leg. Furthermore, one ventilation port 3 is located at the toe of the shoe-shaped brace body 1, and several other ventilation ports 3 are located at the sole of the shoe-shaped brace body 1 (not shown in the figure), facilitating the doctor's observation of the patient's peripheral circulation.

[0025] Understandably, by adopting Figure 1 The shoe-shaped brace body 1 shown can be used for patients with foot and ankle injuries or fractures.

[0026] In the initial state of use, the cavity is at normal pressure, and the filler 6 is movable within the cavity. Therefore, the brace body 1 is relatively soft, making it easy for the patient to place their foot inside. Then, air can be pumped out of the cavity. Due to the negative pressure, the gaps in the filler 6 become smaller, making it difficult for them to move, thus hardening the brace body 1. This achieves a fixation effect similar to that of plaster casts or fixed braces in existing technologies. The tightness of the brace can be easily adjusted by changing the amount of negative pressure within the cavity. After use, opening the suction port 2 restores normal pressure to the cavity. Because the brace body 1 has a certain degree of elasticity, it will automatically draw in air and return to a relatively soft state, making it easy for the patient to remove the brace body 1.

[0027] In this embodiment, the shape of the ankle is quite special, so the brace body 1 needs to be set to a special shape accordingly.

[0028] In other embodiments, such as for wrist, elbow, and knee joints, the shape requirements for the brace body 1 are less stringent. In this case, the brace body 1 can be directly set as a double-layered rectangular structure. During use, it wraps around the area requiring its application in a cylindrical shape, and can be secured using straps or Velcro as fastening devices, followed by negative pressure suction.

[0029] The beneficial effects of this utility model are as follows: Compared with traditional plaster or rigid braces, the negative pressure brace provided by this utility model is more convenient to wear and can be shaped according to the shape of the limb. This can more effectively avoid pressure on protruding parts of the limb, reduce pressure injuries and discomfort associated with plaster or rigid braces, provide a more comfortable wearing experience, reduce skin abrasions and pressure points, and allow users to use it flexibly in different times and situations. Furthermore, the tightness of the brace can be easily adjusted by changing the amount of negative pressure in the cavity.

[0030] This invention is applicable to various situations, including but not limited to emergency treatment and transport of fractures, acute bandaging, and sports injury rehabilitation.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A negative pressure brace, characterized in that, Includes the brace body (1); The support body (1) has a double-layer structure. A sealed cavity is formed between the inner and outer layers of the support body (1), and the cavity is filled with granular filler (6). Furthermore, an air extraction port (2) is provided on the outer layer of the support body (1), so that the support body (1) can achieve negative pressure extraction and restoration of normal pressure through the air extraction port (2).

2. The negative pressure brace according to claim 1, characterized in that, The size of the filler (6) is the size of a mung bean.

3. The negative pressure brace according to claim 1, characterized in that, A filter screen is also installed at the air extraction port (2) to prevent the filling material (6) from passing through.

4. The negative pressure brace according to claim 1, characterized in that, It also includes an air pump (4) installed on the outer layer of the support body (1). The position of the air pump (4) corresponds to and is sealed to the air extraction port (2). The air pump (4) is used to achieve negative pressure air extraction in the cavity of the support body (1) through the air extraction port (2).

5. The negative pressure brace according to claim 4, characterized in that, The air pump (4) is equipped with a battery inside, and a charging port (5) corresponding to the battery is provided on the outer casing of the air pump (4).

6. The negative pressure brace according to claim 1, characterized in that, The surface of the support body (1) is also provided with several vents (3), which connect the outer exterior and inner interior of the support body (1) but do not connect with the cavity between the inner and outer layers.

7. The negative pressure brace according to claim 6, characterized in that, The brace body (1) is shoe-shaped, so that it can accommodate the patient's foot and part of the lower leg.

8. The negative pressure brace according to claim 7, characterized in that, One of the ventilation openings (3) is located at the toe of the shoe body (1) of the shoe type, and several other ventilation openings (3) are located at the sole of the shoe body (1) of the shoe type.

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