Color-changing medical patch adopting force-induced color-changing structure

Abstract

The utility model discloses a color-changing medical paste adopting a force-induced color-changing structure, which comprises a pasting base layer, and a release layer capable of being torn off is arranged on the lower side of the pasting base layer; the force-induced discoloration part is fixedly arranged on the upper side surface of the pasting base layer through an elastic combination part, the force-induced discoloration part deforms along with deformation of the pasting base layer, the pasting base layer can deform along with deformation of muscles of the pasting part, and the force-induced discoloration part also deforms along with deformation of the muscles of the pasting part, so that the color of the force-induced discoloration part changes; therefore, the stress condition and the movement condition of the skin and the joints of the human body can be observed in real time, power supply is not needed, and the shape and the size of the force-induced discoloration component and the pasting base layer can be customized.

Description

Technical Field

[0001] The utility model relates to the technical field of biomedical sensing materials, in particular to a color-changing medical patch adopting a force-induced color-changing structure. Background Technique

[0002] Existing biomedical sensing materials usually use electronic sensors as the main sensing method, that is, the force conditions of parts such as muscles and joints are monitored through electrical signals, and corresponding electronic devices and a certain power supply are required to work properly. Due to its high equipment requirements, complex operation and inconvenient portability, it lacks universality and convenience in clinical treatment, rehabilitation training and daily use. At the same time, existing force-induced structural color sensors are usually prepared by a coating method, which has great defects in mechanical properties and is easily etched and damaged. For example, the Chinese invention patent with the publication number CN117777512A discloses "a structural color pressure-sensitive film based on hollow polymer colloidal photonic crystals, its preparation method and application", which directly coats the colloidal particle solution of photonic crystals on the surface of a flexible substrate to form a pressure-sensitive film. It can be seen that this existing coating forming method is only suitable for preparing two-dimensional film materials and cannot prepare three-dimensional materials with a certain thickness and specific shape, and there are great defects in environmental adaptability and personalized needs. Content of the Utility Model

[0003] The utility model provides a color-changing medical patch adopting a force-induced color-changing structure, which can solve the problems that existing biomedical sensing materials need to be equipped with corresponding electronic devices to work and the coating forming process of existing force-induced structural color sensors cannot prepare three-dimensional materials with a certain thickness and specific shape.

[0004] To achieve the above object, the utility model provides the following technical scheme: A color-changing medical patch adopting a force-induced color-changing structure, including a sticking base layer, and a peelable release layer is arranged on the lower side of the sticking base layer; a force-induced color-changing component is fixedly arranged on the upper surface of the sticking base layer through an elastic joint part, and the force-induced color-changing component deforms along with the deformation of the sticking base layer. The sticking base layer can deform along with the deformation of the muscles at the sticking part, and the force-induced color-changing component will also deform accordingly, so that the color of the force-induced color-changing component changes, thereby observing the force conditions and movement conditions of the human skin and joints in real time without power supply, and the shape and size of the force-induced color-changing component and the sticking base layer can be customized individually.

[0005] Preferably, the sticking base layer is a fabric muscle patch, on which pores are arranged. The fabric muscle patch has a certain elasticity, can undergo relatively large tensile deformation when the muscles deform, and has good air permeability and is convenient to cut.

[0006] Preferably, the elastic bonding part is made of silica gel, which has good elasticity. After curing, the silica gel can protect the force-induced color change component from being worn or cut.

[0007] Preferably, at least part of the elastic bonding part enters the gaps in the fabric muscle patch to bond with the fabric muscle patch, which can firmly bond the fabric muscle patch and the force-induced color change component. The elastic bonding part entering the gaps in the fabric muscle patch can also enhance the elastic recovery performance and fatigue resistance of the fabric muscle patch.

[0008] Preferably, the elastic bonding part at least wraps around the periphery of the force-induced color change component to firmly fix the force-induced color change component.

[0009] Preferably, the elastic bonding part wraps the entire force-induced color change component to protect the force-induced color change component in all directions.

[0010] Preferably, the force-induced color change component has a strip-shaped structure, which is beneficial for the force-induced color change component to deform with the deformation of the muscle.

[0011] Preferably, the force-induced color change component is in the form of a thin film, which is simple to manufacture.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] (1) Using the force-induced color change film as the response unit, a force-induced color change structural color medical patch with a sensing function is constructed, which shows continuous color change of different colors under the action of different pulling forces, realizing the visual monitoring of external pulling forces.

[0014] (2) No additional energy consumption is required, and the visual monitoring of the pulling force can be realized under light conditions. It is portable and easy to use. Just tear off the release paper on the back of the medical patch and directly attach it to the surface of the skin to achieve immediate use and continuous monitoring.

[0015] (3) It can be designed and prepared in different shapes and sizes according to requirements, and a force-induced color change structure with a three-dimensional structure can also be obtained by 3D printing, meeting personalized needs and adapting to various use environments. Silica gel and fabric muscle patches can be used to isolate the force-induced color change film to prevent its direct contact with the skin;

[0016] (4) The preparation process is simple, the cost is low, the conditions are mild, no chemical dyes such as pigments are required, it is non-toxic, harmless, green and environmentally friendly, and is easy to mass-produce. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the overall three-dimensional structure diagram of the present utility model;

[0018] Figure 2This is the overall exploded state structure diagram of the present utility model;

[0019] Figure 3 This is the overall top view structure diagram of the present utility model;

[0020] Figure 4 This is the overall exploded state structure diagram after the shape of the present utility model is changed;

[0021] Figure 5 This is the schematic diagram of the use state of the present utility model.

[0022] Reference numerals:

[0023] 1. Adhesive base layer, 2. Elastic bonding part, 3. Force-induced color change component. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0025] As Figures 1-4 shown, in order to solve the problems that existing biomedical sensing materials need to be equipped with corresponding electronic devices to work and the coating forming process of existing force-induced color change structural color sensors cannot prepare three-dimensional materials with a certain thickness and specific shape, the present utility model provides the following technical solutions: A color-changing medical patch using a force-induced color change structure, including an adhesive base layer 1, and a peelable release layer is provided on the lower side of the adhesive base layer 1; a force-induced color change component 3 is fixedly arranged on the upper side surface of the adhesive base layer 1 through an elastic bonding part 2. The force-induced color change component 3 deforms as the adhesive base layer 1 deforms. The adhesive base layer 1 can deform as the muscles at the pasting part deform, and the force-induced color change component 3 will also deform accordingly, so that the color of the force-induced color change component 3 changes. Without power supply, the shape and size of both the force-induced color change component 3 and the adhesive base layer 1 can be customized.

[0026] Specifically, when the skin and joints at the pasting part stretch and bend, the color change of the force-induced color change structural color medical patch can be observed, so as to observe the force and movement conditions of the human skin and joints in real time. As Figure 5 shown, the color-changing medical patch can be pasted on the finger joint and deform as the finger joint deforms.

[0027] The force-induced color change component 3 shows bright structural colors, deforms to different degrees under external forces, and shows continuous color changes of green, blue, and purple. After the external force is removed, the shape resumes and the color also returns accordingly. Different from the general chemical pigment color display, the structural color display is bright and durable, and is not easily faded by chemical substances. The force-induced color change component 3 is an existing material and can be directly formed into a solid by photopolymerization reaction.

[0028] The force-induced color change component 3 described above can be in a strip-shaped structure, which is beneficial for the force-induced color change component 3 to deform with the deformation of the muscle, and its length can be adjusted according to the application position. As Figure 4 shown, the force-induced color change component 3 can be made into the shape of an arrow.

[0029] As Figures 1-3 shown, the force-induced color change component 3 can be made into a film shape, and its shape and thickness can be adjusted. It can be directly formed into a solid through a photopolymerization reaction, and 3D printing photocuring technology or different molds can be used to prepare color-changing materials with different shapes to meet the needs of personalized customization.

[0030] In this embodiment, as Figures 1-3 shown, the paste base layer 1 is a fabric muscle patch, which is provided with pores. The fabric muscle patch has a certain elasticity and can undergo relatively large tensile deformation when the muscle deforms. Moreover, it has good air permeability and is convenient to cut.

[0031] The elastic bonding part 2 is made of silica gel and has good elasticity. After the silica gel is cured, it can protect the force-induced color change component 3 to prevent it from being worn or cut. Food-grade silica gel material can be used, which is non-toxic and harmless and can be directly in contact with the skin. It can adapt to force-induced color change components 3 with different shapes and thicknesses.

[0032] In this embodiment, at least part of the elastic bonding part 2 enters the gaps on the fabric muscle patch to combine with the fabric muscle patch, which can firmly bond the fabric muscle patch and the force-induced color change component 3. The elastic bonding part 2 entering the gaps on the fabric muscle patch can also enhance the elastic recovery performance and fatigue resistance of the fabric muscle patch. If silica gel is used as the elastic bonding part 2, it can penetrate into the gaps on the fabric muscle patch when the silica gel is still in a flowing state, and it is still elastic after curing. The elastic bonding part 2 can also use other colloids, which can enter the gaps on the fabric muscle patch before curing, such as rubber, latex, etc.

[0033] In order to better fix the force-induced color change component 3, at least the periphery of the force-induced color change component 3 is covered by the elastic bonding part 2, which can firmly fix the force-induced color change component 3. If the elastic bonding part 2 uses a non-transparent material, the force-induced color change component 3 needs to be exposed for easy observation of color changes.

[0034] If the elastic bonding part 2 is made of a transparent material, the elastic bonding part 2 can cover the entire force-induced color change component 3, which can protect the force-induced color change component 3 in all directions.

[0035] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly.

[0036] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0037] In the present utility model, unless otherwise clearly specified and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0038] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

Claims

1. A color-changing medical patch using a mechanochromic structure, characterized in that: include: An adhesive base layer (1), wherein a peelable release layer is provided on the lower side of the adhesive base layer (1); The mechanochromic component (3) is fixedly arranged on the upper surface of the adhesive base layer (1) via an elastic joint (2), and the mechanochromic component (3) deforms along with the deformation of the adhesive base layer (1).

2. The color-changing medical patch with a mechanochromic structure according to claim 1, characterized in that: The adhesive base layer (1) is a fabric muscle patch, on which pores are arranged.

3. The color-changing medical patch with a mechanochromic structure according to claim 1, characterized in that: The elastic joint (2) is made of silica gel.

4. The color-changing medical patch with a mechanochromic structure according to claim 2, characterized in that: The elastic bonding part (2) at least partially enters into the gap on the fabric muscle patch and is bonded to the fabric muscle patch.

5. The color-changing medical patch with a mechanochromic structure according to claim 1, characterized in that: The elastic joint portion (2) at least covers the four sides of the mechanochromic component (3).

6. The color-changing medical patch with a mechanochromic structure according to claim 5, characterized in that: The elastic joint (2) covers the entire mechanochromic component (3).

7. The color-changing medical patch with a mechanochromic structure according to claim 1, characterized in that: The mechanochromic component (3) is in the form of an elongated strip.

8. The color-changing medical patch with a mechanochromic structure according to claim 1, characterized in that: The mechanochromic component (3) is in the form of a film.

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