A scar patch with temperature control memory effect and tension reduction function

Abstract

The utility model relates to a kind of scar paste with temperature control memory effect and tension reduction function, the scar paste includes layer by layer arranged silica gel layer, shape memory metal layer, temperature control layer and waterproof layer;The silica gel layer includes the adhesive part of symmetrical adhesion in the two sides of skin wound when using, the two ends of the shape memory metal layer are connected with the adhesive part of corresponding side respectively, temperature control layer and waterproof layer are sequentially arranged on shape memory metal layer;The shape memory metal layer is used to change into preset contraction mode under skin temperature and / or the heating of temperature control layer and drive adhesive part shrink in tension reduction direction.It can drive the adhesive part of silica gel layer shrink in tension reduction direction under skin temperature compared with prior art, so as to achieve the effect of tension reduction and inhibiting scar hyperplasia, finally realize the effect of "scarless healing".

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a scar patch with temperature regulation memory and tension reduction functions. Background Technology

[0002] During wound healing, issues such as scar hyperplasia and post-healing wound widening arise. Scarring is a common complication after skin injury repair, affecting not only the patient's appearance but also causing physical discomfort and functional impairment, thus reducing their quality of life. Numerous clinical observations and experimental studies have shown that skin mechanical tension is a significant factor contributing to delayed wound healing and pathological scar formation. Greater tension at the wound site leads to a more severe tissue inflammatory response, making scarring more likely. Especially in plastic surgery, wounds on the head and face often require early tension-reducing interventions to prevent scar hyperplasia and achieve cosmetic results.

[0003] Existing tension-reducing devices include traditional adhesive tape, skin tension reducers, and dynamic tension-reducing systems. Skin tension reducers, also known as needle-free skin tension-reducing sutures, are applied evenly and symmetrically to both sides of the skin wound, and then tightened one by one by the barbs to achieve tension reduction. CN117958886A discloses a smart dressing based on skin tension response-driven wound closure, including a series of flexible stress sensors, flexible actuators, self-resetting fuses, and a power supply. By integrating the flexible sensor and flexible actuator, it can automatically contract when skin tension increases, causing the wound to contract and quickly reach a closed state conducive to healing. However, with the dynamic tension reduction and contraction at the skin wound, the barbs of the skin tension reducer need to be constantly adjusted, making the operation cumbersome. Dynamic tension-reducing systems rely on complex circuit and electronic device designs, still suffering from structural complexity and inconvenient adjustment.

[0004] Therefore, there is an urgent need to develop a new type of scar patch that is simple in structure, easy to adjust, and has tension-reducing function. Utility Model Content

[0005] The purpose of this invention is to provide a new type of scar patch that is simple in structure, easy to adjust, and has a tension-reducing function, and to provide a scar patch with temperature control memory effect and tension-reducing function.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] This utility model provides a scar patch with temperature control memory effect and tension reduction function, the scar patch comprising a silicone layer, a shape memory metal layer, a temperature control layer and a waterproof layer arranged in layers;

[0008] The silicone layer includes adhesive portions that are symmetrically bonded to both sides of the skin wound during use. The two ends of the shape memory metal layer are respectively connected to the adhesive portions on the corresponding sides. The temperature control layer and the waterproof layer are sequentially disposed on the shape memory metal layer.

[0009] The shape memory metal layer is used to transform into a preset shrinkage shape under skin temperature and / or the regulation of the temperature control layer, driving the adhesive portion to shrink along the tension reduction direction.

[0010] Furthermore, the adhesive portion of the silicone layer, the side that contacts the skin, is connected to the release paper before bonding.

[0011] Furthermore, both the silicone layer and the waterproof layer are provided with breathable micropores.

[0012] Furthermore, the thickness of the silicone layer is 2-5 mm.

[0013] Furthermore, the thickness of the shape memory metal layer is 0.05-0.5 mm.

[0014] Furthermore, the width of the adhesive portion along the tension reduction direction is 8-12 mm.

[0015] Furthermore, the spacing of the adhesive portions at room temperature is 8-12 mm.

[0016] Furthermore, the shape memory metal layer is a nickel-titanium alloy layer.

[0017] Furthermore, the shape memory metal layer is horizontal at room temperature and arches upward at skin physiological temperature and above.

[0018] Furthermore, the shape memory metal layer forms an angle after arching upwards.

[0019] Furthermore, the included angle is in the range of 30°-120°.

[0020] Furthermore, the temperature control layer is any one of a heating element, a heating mesh, or a heating film.

[0021] Furthermore, the temperature control layer is connected to a temperature controller.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) The scar patch of this utility model is provided with a shape memory metal layer with temperature control memory effect, which can change from a horizontal shape to a preset contraction shape under skin temperature or under the heating of the temperature control layer, thereby driving the adhesive part of the silicone layer to contract along the tension reduction direction, reducing the mechanical stress around the wound, thereby achieving the effect of tension reduction and inhibiting scar hyperplasia, and finally achieving the effect of "scarless healing".

[0024] (2) The scar patch of this utility model has a simple structure and does not require manual operation to adjust the tension through the bar, unlike traditional skin tension reducers. Instead, it achieves automatic tension reduction of the entire scar patch by means of the adaptive curved surface deformation of the shape memory metal layer with temperature control memory effect.

[0025] (3) The scar patch of this utility model can transfer energy to the shape memory metal layer by means of the physiological temperature of human skin, so that it can be restored to the preset shape, and the temperature can be further adjusted under external temperature control to adapt to further adaptive deformation. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the scar patch of this utility model at room temperature.

[0027] Figure 2 This is a cross-sectional schematic diagram of the scar patch of this utility model.

[0028] Figure 3 This is a schematic diagram of the scar patch according to Embodiment 2 of this utility model.

[0029] Figure 4 This is a schematic diagram of the temperature control layer and temperature controller in Embodiment 2 of this utility model.

[0030] Figure 5 This is a schematic diagram of the scar patch in different contraction states according to Embodiment 2 of this utility model.

[0031] Explanation of markings in the diagram:

[0032] 1-Silicone layer, 11-Adhesive part, 2-Shape memory metal layer, 3-Temperature control layer, 4-Waterproof layer, 5-Release paper, 6-Temperature controller. Detailed Implementation

[0033] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0034] In this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] Example 1:

[0037] This embodiment provides a scar patch with temperature-controlled memory effect and tension-reducing function. For example... Figure 1-2 As shown, the scar patch includes a silicone layer 1, a shape memory metal layer 2, a temperature control layer 3, and a waterproof layer 4, which are arranged in layers.

[0038] In this embodiment, the silicone layer 1 includes adhesive portions 11 that are bonded to both sides of a skin wound during use. The two ends of the shape memory metal layer 2 are connected to the corresponding adhesive portions 11. A temperature control layer 3 and a waterproof layer 4 are sequentially disposed on the shape memory metal layer 2. In this embodiment, the shape memory metal layer 2 is used to transform into a preset contraction shape under the regulation of skin temperature and / or the temperature control layer 3, driving the adhesive portions 11 to contract along the tension reduction direction.

[0039] In use, the adhesive portion 11 of the silicone layer 1 is symmetrically adhered to both sides of the skin wound. The heat from the patient's skin is conducted to the shape memory metal layer 2, causing the shape memory metal layer 2 to begin to shrink and deform at the skin's physiological temperature, driving the adhesive portion 11 to contract and move closer to the wound along the tension-reducing direction. When further heating is needed, the temperature control layer 3 can be turned on to directly supply heat to the shape memory metal layer 2, causing the shape memory metal layer 2 to further deform and shrink, thereby improving the tension-reducing effect.

[0040] Example 2:

[0041] This embodiment provides a scar patch with temperature-controlled memory effect and tension-reducing function. The scar patch includes a silicone layer 1, a shape memory metal layer 2, a temperature-controlled layer 3, and a waterproof layer 4, which are arranged in layers.

[0042] In this embodiment, the silicone layer 1 includes adhesive portions 11 that are bonded to both sides of the skin wound during use. For example... Figure 3 As shown, the adhesive portion 11 of the silicone layer 1, the side that contacts the skin, is connected to the release paper 5 before bonding. The release paper 5 is peeled off during use, which not only improves convenience and hygiene, ensuring the adhesive portion 11 is not contaminated before application, but also protects the adhesive layer of the adhesive portion 11, preventing premature loss of stickiness. The two ends of the shape memory metal layer 2 are respectively connected to the corresponding adhesive portions 11. The temperature control layer 3 and the waterproof layer 4 are sequentially disposed on the shape memory metal layer 2. Both the silicone layer 1 and the waterproof layer 4 have breathable micropores, which prevent external moisture from penetrating while allowing internal moisture to escape, maintaining a balance between dryness and moisture in the wound and reducing allergic reactions.

[0043] In this embodiment, the thickness of the silicone layer 1 is 2-5 mm, and the thickness of the shape memory metal layer 2 is 0.05-0.5 mm. The width of the adhesive portion 11 along the tension reduction direction is 8-12 mm, such as 10 mm; the spacing of the adhesive portions 11 at room temperature is 8-12 mm, such as 10 mm.

[0044] In this embodiment, the shape memory metal layer 2 is used to drive the adhesive portion 11 to shrink along the tension-reducing direction under the heating of skin temperature and / or the temperature control layer 3. The shape memory metal layer 2 is horizontal at room temperature and arches upwards at skin physiological temperature and above. After arching upwards, the shape memory metal layer 2 forms an angle, ranging from 30° to 120°. Figure 5 As shown, the shape memory metal layer 2 in this embodiment is a nickel-titanium alloy layer woven from nickel-titanium alloy wires. It can be pre-bent into different angles at temperatures such as 30°C, 40°C, 45°C, and 60°C, for example, corresponding to angles of 120°, 90°, 60°, and 30°. It can also be bent into an angle approaching 0° at higher temperatures, and then return to a horizontal state at room temperature. When the temperature rises again to the corresponding temperature point, the nickel-titanium alloy layer undergoes an austenitic phase transformation under the trigger of the temperature control layer, producing a preset deformation, arching upwards and forming the corresponding angle, thereby driving the adhesive part 11 to shrink and move closer along the tension reduction direction, achieving a lateral tension reduction effect.

[0045] In this embodiment, the temperature control layer 3 can be any one of a heating element, a heating mesh, a thermal film, or a cooling element. In this embodiment, the temperature control layer 3 is preferably a low-voltage graphene heating element, such as a 5V graphene heating element, which mainly consists of a heat storage layer, a breathable base fabric, and a graphene heating layer disposed between the two. The graphene heating element can be equipped with a plug connector compatible with common DC power supplies, and the heating temperature of the heating element can be remotely controlled. Figure 4 As shown, in this embodiment, the temperature control layer 3 is connected to a temperature controller 6, which detects temperature changes in the heating film to ensure that the heating film operates within a safe range. The temperature controller 6 can be a 5V low-voltage dedicated temperature controller (such as a KSD301 temperature switch), directly connected in series in the heating circuit of the temperature control layer 3, and a temperature threshold is set. When the set threshold is exceeded, the temperature controller 6 automatically cuts off the power to the heating circuit, preventing excessive temperature from damaging the patient's skin.

[0046] In this embodiment, the temperature control layer 3 can also be a cooling pad, which can be a semiconductor cooling pad. When the patient experiences itching during the wound healing process, the cooling pad can be used to cool the wound, thereby relieving the itching and promoting wound healing.

[0047] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A scar patch having a temperature control memory effect and a tension reduction function, characterized in that, The scar patch includes a silicone layer (1), a shape memory metal layer (2), a temperature control layer (3), and a waterproof layer (4) arranged in layers. The silicone layer (1) includes adhesive portions (11) that are symmetrically bonded to both sides of the skin wound during use. The two ends of the shape memory metal layer (2) are respectively connected to the adhesive portions (11) on the corresponding sides. The temperature control layer (3) and the waterproof layer (4) are sequentially disposed on the shape memory metal layer (2). The shape memory metal layer (2) is used to transform into a preset shrinkage shape under the control of skin temperature and / or temperature control layer (3) and drive the adhesive part (11) to shrink along the tension reduction direction.

2. The scar patch with temperature-controlled memory effect and tension-reducing function according to claim 1, characterized in that, The adhesive portion (11) of the silicone layer (1) is connected to the release paper (5) on the side that contacts the skin before bonding.

3. A scar patch with temperature-controlled memory effect and tension-reducing function according to claim 1, characterized in that, Both the silicone layer (1) and the waterproof layer (4) have breathable micropores.

4. A scar patch with temperature-controlled memory effect and tension-reducing function according to claim 1, characterized in that, The thickness of the silicone layer (1) is 2-5 mm, and the thickness of the shape memory metal layer (2) is 0.05-0.5 mm.

5. A scar patch with temperature-controlled memory effect and tension-reducing function according to claim 1, characterized in that, The width of the adhesive portion (11) along the tension reduction direction is 8-12 mm; The spacing of the adhesive portion (11) at room temperature is 8-12 mm.

6. A scar patch with temperature-controlled memory effect and tension-reducing function according to claim 1, characterized in that, The shape memory metal layer (2) is a nickel-titanium alloy layer.

7. A scar patch with temperature-controlled memory effect and tension-reducing function according to claim 1, characterized in that, The shape memory metal layer (2) is horizontal at room temperature and arches upward at skin physiological temperature and above.

8. A scar patch with temperature-controlled memory effect and tension-reducing function according to claim 7, characterized in that, The shape memory metal layer (2) forms an angle after arching upwards, with the angle ranging from 30° to 120°.

9. A scar patch with temperature-controlled memory effect and tension-reducing function according to claim 1, characterized in that, The temperature control layer (3) is any one of a heating element, a heating mesh, or a heating film.

10. A scar patch with temperature-controlled memory effect and tension-reducing function according to claim 1, characterized in that, The temperature control layer (3) is connected to a temperature controller (6).

Images