Pressure sore protection patch

Abstract

The utility model provides a pressure sore protective patch which comprises an application layer and a supporting layer, the application layer comprises a gel layer, a material core layer and a thin film layer from top to bottom, the lower end face of the thin film layer is tightly connected with the supporting layer, the supporting layer is an elastic ring layer, the elastic ring layer is utilized to empty the skin at the osseous process position, and the elastic ring layer is used for supporting the skin. The pressure source is relieved, so that pressure sores are prevented; the gel layer on the application is used for keeping the wound surface moist and absorbing seepage of the wound surface to form gel, so that no residue is left on the wound when the protective application is peeled off, the pain during dressing change can be relieved, and secondary mechanical injury can be avoided; the polyurethane film layer on the surface only allows permeation of oxygen and water vapor, invasion of external bacteria is effectively isolated, the elastic ring layer is tightly connected with the polyurethane film layer, the use comfort and portability are improved, and meanwhile the effects of preventing pressure sore wound infection and maintaining the function stability of the wound are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical supplies, in particular to a pressure sore protection patch. Background Art

[0002] Pressure ulcers are caused by prolonged pressure on body tissue, resulting in impaired blood circulation, chronic ischemia and hypoxia, and nutrient deficiencies that lead to tissue breakdown and necrosis, leading to malfunction of the skin. Pressure ulcers themselves are not primary conditions; they are often caused by skin damage from other underlying conditions that are not properly managed. Once a pressure ulcer develops, it not only causes pain, exacerbates the condition, and prolongs recovery, but in severe cases, can lead to life-threatening sepsis caused by secondary infection. Among the causes of pressure ulcers, sustained vertical pressure on localized tissue is the most important. The formation of pressure ulcers is closely related to the intensity and duration of pressure. The greater the pressure and the longer it lasts, the higher the likelihood of developing a pressure ulcer. Pressure ulcers often occur over bony prominences that are under pressure and lack the protective effects of fat tissue, muscle wrapping, or a thin muscle layer. Pressure points vary depending on the sleeping position, leading to different predispositions. Traditional methods of pressure ulcer prevention often use air mattresses, rubber washers, sponge washers, cotton washers, and other methods to protect vulnerable bony prominences. However, due to the large size of the air mattress, the poor air permeability of the rubber gasket and sponge gasket, and the poor elasticity of the cotton gasket, not only can it not provide good protection for the areas with pressure sores, but also when exudate appears on the wound surface, it cannot be treated in time, which can easily lead to secondary infection of the wound. Utility Model Content

[0003] In response to the application limitations of pressure sore prevention and treatment measures in the background technology, the utility model provides a pressure sore protection patch that increases comfort and portability, relieves body pain, and has the effect of preventing pressure sore wound infection and maintaining the function of the injured area.

[0004] In order to solve the above technical problems, the utility model provides a pressure sore protection patch, comprising an application layer and a support layer. The application layer comprises, from top to bottom, a gel layer, a core layer, and a film layer. The upper end surface of the film layer is bonded to the edge of the gel layer to form an accommodating space for the core layer, and the lower end surface of the film layer is tightly connected to the support layer.

[0005] The support layer is an enclosed or semi-enclosed elastic ring layer, and the elastic ring layer is a silicone ring layer or an inflatable ring layer.

[0006] In a preferred embodiment, a release film is also included covering the application layer.

[0007] In a preferred embodiment, the gel layer is silicone gel.

[0008] In a preferred embodiment, the core layer is polyurethane foam.

[0009] In a preferred embodiment, the film layer is a polyurethane film layer, and micropores are provided on the polyurethane film layer.

[0010] In a preferred embodiment, the effective thickness of the support layer after being compressed is not less than 1 cm.

[0011] In a preferred embodiment, the outer diameter of the support layer is not larger than that of the application layer.

[0012] In a preferred embodiment, the size of the device is adapted to the size of the human body part where it is used, including the occipital region, shoulder blade, elbow, sacrum, ischium, heel, knee, anterior tibia or ankle.

[0013] Compared with the existing technology, the technical solution of the utility model has the following beneficial effects:

[0014] The utility model utilizes an elastic ring layer to vacate the skin of the bony protrusion on the basis of the traditional pressure sore dressing, thereby relieving the pressure source and preventing the occurrence of pressure sores; the gel layer on the dressing keeps the wound moist, and forms a gel after absorbing the wound exudate, so that there is no residue on the wound when the protective patch is peeled off, which can not only reduce the pain during the dressing change, but also avoid causing mechanical damage again; the polyurethane film layer on the surface only allows the penetration of oxygen and water vapor, effectively isolating the invasion of external bacteria, and the elastic ring layer is tightly connected to the polyurethane film layer, which increases the comfort and portability of use while having the effect of preventing pressure sore wound infection and maintaining the functional stability of the wound. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the utility model pressure sore protection patch;

[0016] Figure 2 This is a diagram of the appearance of the pressure sore protection patch of the utility model;

[0017] Figure 3 This is a diagram showing the appearance of the pressure sore protection patch of the utility model when it is used at the sacrum position;

[0018] Figure 4 This is a diagram showing the appearance of the pressure sore protection patch of the utility model when it is used on the calcaneus. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] At present, in the medical field, the trauma department often admits a large number of high-risk and elderly patients with fractures and trauma. High-risk and elderly orthopedic trauma patients have many complications due to their poor physical fitness, poor environmental adaptability and poor body resistance. Such patients have little activity and stay in bed for a long time. Pressure sores are prone to occur in the pressure parts, and wounds in the pressure parts are prone to infection and other complications. In order to prevent the occurrence of the above complications, traditional nursing protective measures often use elastic rings, homemade cotton rings, air mattresses and other decompression devices to raise the patient's bony protrusions to prevent the skin in the bony protrusions from contacting the bed or chair and causing friction, so as to achieve the effect of preventing and treating pressure sores. However, the elastic rings commonly used in clinical practice are mostly made of rubber materials with a hard texture. They often need to be wrapped with gauze or degreased bandages. They have fixed specifications, few options, and need to be adjusted and fixed in place immediately during use, resulting in a poor user experience. Air mattresses are large in size and are mostly made of PVC materials that cannot absorb moisture. They have poor air permeability and are prone to causing skin eczema. In addition, they have the disadvantage of not being targeted and selective in their application to the pressure-bearing parts.

[0023] refer to Figure 1-4This embodiment provides a pressure sore protection patch, comprising an application layer that directly contacts the user and a support layer 11 disposed between the application layer 12 and the pressure-bearing surface. The support layer 11 has a smaller outer diameter than the application layer 12. The application layer 12 comprises, from top to bottom, a gel layer 121, a core layer 122, and a film layer 123. The upper end surface of the film layer 123 adheres to the edge of the gel layer 121 to form a space for accommodating the core layer 122, while its lower end surface is tightly connected to the support layer 11. The gel layer 121 in this embodiment is made of silicone gel, which has a mild and soft viscosity. When in contact with human skin or a wound, it effectively inhibits scarring and reduces pain and adhesion during removal. A release film 124 protects the silicone gel and makes it easier to remove and apply the silicone gel surface layer to the pressure sore. The core layer 122 is made of polyurethane foam, which utilizes its porous and highly compressible physical properties to absorb and store exudate from the wound, preventing stagnation around the wound. In addition, the elasticity of the polyurethane foam is used to buffer the positive pressure on the bony protrusion of the affected part. The film layer 123, whose upper end face is bonded to the edge of the gel layer 121 and whose lower end face is tightly connected to the support layer 11, is specifically constructed as a polyurethane film layer 123 with waterproof and breathable functions. The polyurethane film layer 123 is provided with micropores, and water vapor can evaporate through the film and prevent the entry of water from the outside. The pressure sore protection patch provided in this embodiment uses the silicone gel on the outer layer to enable the polyurethane foam to increase the amount of exudate absorbed while fixing the absorbed exudate in its own molecular structure to prevent the exudate from leaking out. When the dressing is under pressure, the internal liquid leaks out, causing the wound and surrounding skin to be soaked, affecting wound healing, causing rashes or even ulcers on the surrounding skin, and leading to lesions or necrosis of the wound. And by utilizing the self-adhesiveness of the silicone gel layer 121, when in use, there is no need to use tape or bandage for fixation. The silicone gel layer 121 adheres to the wound. The silicone gel layer 121 and the wound contact layer have mild adhesion, which can ensure that the wound will not stick when the dressing is removed, thereby minimizing the pain. In addition, the silicone gel layer 121 can be repeatedly peeled off and re-adhered, which improves the convenience and applicability of the protective patch.

[0024] Unlike traditional pressure sore dressings, the pressure sore protective patch provided in this embodiment has a support layer 11 that is an enclosed or semi-enclosed elastic ring layer, the size of which is adapted to the size of the human body part where it is used, and its appearance can be set to different shapes according to the different parts of the body where it is used. For example, when the protective patch is used on the sacrum of the human body, its structural features can be preferably set as follows by combining ergonomics: Figure 3The semi-enclosed structure shown in the figure provides targeted support to the sacrum through two symmetrical arc-shaped elastic ring layers, reducing the sacrum's stress-bearing surface from being suspended, which increases stress on other parts of the limbs and aggravates the formation of pressure sores. For another example, when the protective patch is used on the heel, knee, anterior shin or ankle of the human body, the appearance of the patch layer 1212 can be preferably set as follows by combining the application characteristics of the part. Figure 4 The folding wing structure shown is used to improve the fit of the product. In addition, considering the individual parameter differences of users, in order to ensure the performance of the product, this embodiment designs the support layer 11 as a silicone ring layer or an inflatable ring layer, and it is necessary to ensure that the silicone ring layer or the inflatable ring layer has an effective support thickness of not less than 1 cm after being compressed. By vacating the skin of the pressure-bearing area and raising the bony protrusion, the skin of the bony protrusion is prevented from contacting the bed or chair and causing friction, thereby relieving the pressure source and preventing the occurrence of pressure sores.

[0025] The pressure sore protection patch described in the present invention has specifications and dimensions that are adapted to the size of the parts of the human body where it is used. In addition to being used for the sacrum, heel, knee, anterior tibia, and ankle as described in the above examples, it can also be used to protect areas prone to sores, such as the ischium, occipital region, shoulder blades, and elbows.

[0026] The above is only a preferred specific implementation method of the present invention, but the design concept of the present invention is not limited to this. Any technician familiar with the technical field who uses this concept to make non-substantial changes to the present invention within the technical scope disclosed by the present invention shall be deemed to infringe the protection scope of the present invention.

Claims

1. A pressure sore protection patch, characterized by: The coating layer comprises an application layer and a support layer. The application layer comprises a gel layer, a core layer and a film layer from top to bottom. The upper end surface of the film layer is bonded to the edge of the gel layer to form an accommodating space for the core layer, and the lower end surface of the film layer is tightly connected to the support layer. The support layer is an enclosed or semi-enclosed elastic ring layer, and the elastic ring layer is a silicone ring layer or an inflatable ring layer.

2. The pressure sore protection patch according to claim 1, characterized in that: Also included is a release film covering the application layer.

3. The pressure sore protection patch according to claim 1, characterized in that: The gel layer is silicone gel.

4. The pressure sore protection patch according to claim 1, characterized in that: The core layer is polyurethane foam.

5. The pressure sore protection patch according to claim 1, characterized in that: The film layer is a polyurethane film layer, and micropores are provided on the polyurethane film layer.

6. The pressure sore protection patch according to claim 1, characterized in that: The effective thickness of the support layer after being compressed is not less than 1 cm.

7. The pressure sore protection patch according to claim 1, characterized in that: The outer diameter of the supporting layer is no greater than that of the applying layer.

8. The pressure sore protection patch according to claim 1, characterized in that: Its specifications and dimensions are adapted to the size of the human body part where it is used, including the occipital region, shoulder blades, elbows, sacrum, ischium, heel, knee, anterior tibia or ankle.

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