Composite medical proof fabric

Abstract

The invention provides a composite medical proof fabric, and belongs to the field of medical proof fabrics. The composite medical proof fabric comprises an adhesive tape, the adhesive tape can be rolled into a roll, is formed by stacking a plurality of layers and comprises an anti-release adhesion layer, a fluorescent color-changing layer, a layered coating layer and a PU transparent film, and quantitative nano silicon microspheres are doped into an adhesive matrix of the anti-release adhesion layer so as to improve the viscosity and antibacterial performance of an adhesive. The adhesive tape provided by the invention adopts an efficient adhesive material, can tightly cover a wound under the condition that the skin is not injured, and ensures that the adhesive tape is not polluted by an external environment. The material not only has good adhesion, but also has certain air permeability, and can keep the wound dry and avoid the infection problem caused by excessive moisture, thereby providing better healing conditions for the wound. And secondly, by optimizing the structural design of the medical adhesive tape, the wound dressing change frequency can be effectively reduced, and the discomfort of a patient caused by frequent dressing change is reduced.

Description

Technical Field

[0001] This invention relates to the field of medical adhesive tape technology, and more specifically, to a composite medical adhesive tape. Background Technology

[0002] With the continuous development of the medical industry, wound care has become an important area in clinical treatment. Traditional wound dressings mostly use materials such as gauze and adhesive tape. While these dressings can provide basic protection, they often lack effective monitoring and treatment methods during the wound healing process. In particular, during wound management, it is impossible to assess the wound healing status or the presence of infection in real time, and the high frequency of dressing changes easily leads to the risk of cross-infection. In addition, the adhesion and comfort of traditional medical tapes and dressings also have certain problems. Many products can easily cause skin damage due to excessive adhesion or insufficient adhesion, or they cannot ensure a tight coverage of the wound when applied, resulting in unsatisfactory nursing effects. At the same time, it is difficult to balance the breathability and waterproofness of many tapes, resulting in an unstable moist environment in the wound, which affects healing.

[0003] Therefore, designing a medical tape that can improve wound healing while enabling real-time monitoring and reducing the risk of cross-infection has become a research hotspot in the current technical field. This invention aims to solve the above problems by providing a medical tape with multiple functions. Through optimized structural design, it integrates multiple functions such as adhesion, antibacterial properties, wound monitoring, and drug release, providing comprehensive support for trauma care and meeting the clinical demand for efficient, convenient, and reliable treatment tools. Summary of the Invention

[0004] To overcome the above deficiencies, the present invention provides a composite medical adhesive tape that overcomes or at least partially solves the above technical problems.

[0005] This invention is implemented as follows: This invention provides a composite medical adhesive tape, comprising an adhesive strip that can be rolled into a roll and is composed of multiple layers, including an anti-detachment adhesion layer, a fluorescent color-changing layer, a layered coating layer, and a PU transparent film. The anti-detachment adhesion layer incorporates a certain amount of nano-silica microspheres into its adhesive matrix to enhance the adhesive's viscosity and antibacterial properties. The nano-silica microspheres have a diameter of 1-2 nanometers and are silica nanoparticles with a large specific surface area and excellent dispersibility, effectively enhancing the adhesive's adhesion and antibacterial effect. The fluorescent color-changing layer is used to detect changes in brightness indicating the degree of wound healing through the reaction of wound exudate with a pH fluorescent agent. The layered coating layer is used to record and observe the number of days of use, facilitating clinical management. The PU transparent film helps in observing the wound condition.

[0006] In a preferred embodiment, the fluorescent color-changing layer consists of a first layer of nonwoven fabric and a second layer of nonwoven fabric, with multiple fluorescent capsules bonded together in the middle. Two color-changing rings are provided between the first and second layers of nonwoven fabric, with each color-changing ring located on both sides of the fluorescent capsule, which can provide intuitive information about the progress of wound healing through the reaction of fluorescence changes.

[0007] In a preferred embodiment, the layered coating comprises gauze with a starch-containing gel coated on its surface, and potassium iodate microcapsules disposed on the top of the gauze for reacting with the starch-containing gel and air.

[0008] In a preferred embodiment, a plurality of [aspects] are provided between [aspects] and [aspects], and the plurality of [aspects] are provided around the edges of [aspects].

[0009] In a preferred embodiment, the top is provided with a plurality of ventilation holes extending through the outer surfaces of both.

[0010] In a preferred embodiment, a plurality of elastic balls are disposed between the second layer of nonwoven fabric and the first layer of nonwoven fabric. The plurality of elastic balls are disposed around the edges of the first layer of nonwoven fabric and the second layer of nonwoven fabric. Their function is to increase the overall flexibility and elasticity of the tape, while enhancing the overall comfort of the tape.

[0011] In a preferred embodiment, the top of the gauze is provided with multiple air vents that penetrate the outer surface of both the gauze and the PU transparent film.

[0012] The present invention provides a composite medical adhesive tape, the beneficial effects of which include: 1. The tape uses a highly efficient adhesive material that can tightly cover the wound without damaging the skin, ensuring it is not contaminated by the external environment. This material not only has good adhesion but also a certain degree of breathability, keeping the wound dry and preventing excessive moisture from causing infection, thus providing better conditions for wound healing. Secondly, the medical tape of this invention, through its optimized structural design, can effectively reduce the frequency of wound dressing changes, reducing the discomfort caused to patients by frequent dressing changes.

[0013] 2. This invention also integrates a sustained-release drug function, which can continuously release antibacterial or healing-promoting drugs during the wound healing process, reducing the risk of infection and accelerating the healing process. This drug release function can provide personalized treatment based on the specific condition of the wound, avoiding the inconvenience of patients needing to frequently use topical medications. The sustained-release drug system not only reduces the frequency of drug use and alleviates the burden on patients, but also ensures that the drug concentration is within the optimal range, thereby maximizing the therapeutic effect and reducing the occurrence of wound complications.

[0014] 3. The tape in this invention can be used in a variety of different medical environments, such as fixing indwelling needles, preventing dislodgement and monitoring leakage, reducing the number of punctures, covering the outlet of wound drainage tubes and detecting leakage early, fixing nasogastric tubes, urinary catheters and many other medical environments, which greatly increases the application range of the tape, thereby achieving the purpose of one tape for multiple uses. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is an overall perspective view provided by an embodiment of the present invention; Figure 2 A schematic diagram of the overall top structure provided for an embodiment of the present invention; Figure 3 A schematic diagram of the overall rear view structure provided for an embodiment of the present invention; Figure 4 A schematic diagram of the overall front view structure provided for an embodiment of the present invention; Figure 5 A schematic diagram of the motor mounting structure provided for an embodiment of the present invention.

[0017] In the diagram: 1. Base; 2. Mounting groove; 3. Rotary roller; 4. Cutting blade; 5. Adhesive tape; 51. Anti-detachment adhesive layer; 52. Fluorescent color-changing layer; 521. First layer of non-woven fabric; 522. Second layer of non-woven fabric; 523. Fluorescent capsule; 524. Color-changing ring; 525. Elastic ball; 53. Layered coating layer; 531. Gauze; 532. Potassium iodate microcapsules; 534. Ventilation area; 54. PU transparent film. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Reference Figures 1-5This invention provides a technical solution: a composite medical adhesive tape, comprising an adhesive tape 5, which can be rolled into a roll and is composed of multiple layers, including an anti-detachment adhesion layer 51, a fluorescent color-changing layer 52, a layered coating layer 53, and a PU transparent film 54. A certain amount of nano-silicon microspheres are incorporated into the adhesive matrix of the anti-detachment adhesion layer 51 to enhance the viscosity and antibacterial properties of the adhesive. The nano-silicon microspheres have a diameter of 1 to 200 nanometers and are silica nanoparticles with a large specific surface area and excellent dispersibility, effectively enhancing the adhesiveness and antibacterial effect. The fluorescent color-changing layer 52 is used to detect changes in brightness in wound healing by reacting wound exudate with a pH fluorescent agent. The layered coating layer 53 is used to record and observe the number of days of use for clinical management. The PU transparent film 54 helps to observe the wound condition. The composite structure of the tape is formed by sequentially stacking the anti-detachment adhesion layer 51, the fluorescent color-changing layer 52, the layered coating layer 53, and the PU transparent film 54. The addition of nano-silicon microspheres to the anti-detachment adhesion layer gives the adhesive a higher specific surface area and adsorption performance, thereby enhancing its adhesion. The nanostructure also has good antibacterial properties, significantly improving the adhesion and holding power of the tape and preventing it from falling off. Especially when applied to sweaty conditions, the nano-silicon microspheres can actually enhance adsorption when exposed to sweat, thereby improving the adhesion of the tape.

[0020] The fluorescent color-changing layer 52 consists of a non-woven fabric layer 521 and a non-woven fabric layer 522, with multiple fluorescent capsules 523 bonded together in the middle. Two color-changing rings 524 are provided between the non-woven fabric layer 521 and the non-woven fabric layer 522, with each color-changing ring 524 located on both sides of the fluorescent capsule 523. It can provide intuitive information about the progress of wound healing through the reaction of fluorescence changes. The pH-indicating fluorescent agent in the fluorescent capsule 523 will undergo a chemical reaction when it comes into contact with the pH value or certain specific components in the wound secretions, producing color or fluorescence changes, which can then be identified by the naked eye through the color-changing rings. This achieves real-time visualization of wound healing status or the presence of signs of infection, allowing for assessment of lesions without removing the adhesive tape, and helping to reduce the risk of cross-infection.

[0021] The specific working principle involves placing a capsule filled with a pH-indicating fluorescent agent on a medical non-woven fabric, namely the fluorescent capsule 523. When wound exudate permeates a layer of non-woven fabric 521, it wets the non-woven fabric 521 and melts the fluorescent capsule 523, causing the wound exudate to react with the pH fluorescent agent. In the early stage of wound exudate, which is in the inflammatory phase, the inflammatory response stimulates the accumulation of acidic substances. The pH-indicating fluorescent agent designed for acidic environments will exhibit strong fluorescence. In the middle stage of wound exudate, the wound exudate gradually becomes neutral or slightly alkaline, and the reaction of the pH fluorescent agent will weaken, meaning the fluorescence brightness will be weaker than in the early stage. In the later stage of wound exudate, the exudate approaches neutral or slightly alkaline, and the reaction of the pH-responsive fluorescent agent becomes more stable, with less change in fluorescence intensity. By observing the brightness of the reaction between the wound exudate and the pH fluorescent agent, the degree of wound recovery can be determined, greatly improving the practicality of the device.

[0022] Furthermore, the color-changing ring 524, which is a ring structure made of hydrated polymer, can absorb fluid from wound exudate. On the one hand, the color changes with the amount of fluid absorbed, allowing medical staff to determine whether the adhesive tape has been used for a long time. On the other hand, it can absorb most of the water in the exudate, thus keeping the adhesive tape dry. This process, especially during intravenous infusion or drainage at night, allows for more intuitive observation, making it easier for medical staff to know if there is any leakage.

[0023] The layered coating 53 includes gauze 531, the surface of which is coated with a starch-containing gel. A potassium iodate microcapsule 532 is disposed on the top of the gauze 531 for reacting with the starch-containing gel and air. The layered coating 52 uses a starch-containing gel material, which interacts with wound exudate to form a protective film to aid healing. At the same time, the potassium iodate microcapsules on the top are activated by the moist wound environment or changes in the pH of the gel, releasing potassium iodate to achieve local sterilization. This achieves the purpose of improving wound healing speed, reducing dressing change frequency, effectively killing surface bacteria, reducing the chance of infection, and realizing the synergistic mechanism of moist therapy and drug release. The above effects are not applicable to patients with hyperthyroidism.

[0024] The specific working principle is as follows: when using it, the potassium iodate microcapsule 532 is punctured to bring the two into contact. After contact with air, the potassium iodate gradually decomposes into elemental iodine, which reacts with starch to produce a blue color. The color depth increases over time, allowing for a direct observation of the number of days the tape 5 has been used, especially at night. By adjusting the concentration of potassium iodate inside the potassium iodate microcapsule 532 and the rupture rate of the microcapsule, the blue color begins to appear after 72 hours and reaches a distinct deep blue after 96 hours, thus indicating the usage time.

[0025] Multiple elastic balls 525 are arranged between the second layer of non-woven fabric 522 and the first layer of non-woven fabric 521. The multiple elastic balls 525 are arranged around the edge of the first layer of non-woven fabric 521 and the second layer of non-woven fabric 522. Their function is to increase the overall flexibility and elasticity of the tape 5, and at the same time enhance the comfort of the entire tape 5. The top of the gauze 531 is provided with a 533. Multiple ventilation holes are opened through the outer surface of the 533 and the PU transparent film 54. Through the elastic balls 525, when the user moves at the application point, the elastic balls 525 can contract, thereby expelling the internal air through the multiple ventilation holes, and drawing in new air during the recovery process, thus greatly increasing the breathability of the tape 5 at the application point.

[0026] As described above, the tape 5 in this invention can be applied to a variety of different medical environments, such as fixing indwelling needles, preventing dislodgement and monitoring exudate, reducing the number of punctures, covering the outlet of wound drainage tubes, detecting leakage early, fixing nasogastric tubes, urinary catheters, and many other medical environments.

[0027] The tape 5 is sleeved on the outer surface of the roller 3. The roller 3 is provided with a base 1 on the outside. The base 1 has an installation groove 2 inside. The roller 3 is placed inside the installation groove 2. The top of the base 1 is equipped with a cutting blade 4. In actual use, the base 1 can be placed in a medical cart. When using the tape 5, such as when fixing an indwelling needle or applying adhesive to a wound, one end of the tape 5 can be pulled out directly. When the length is appropriate, the pulled-out part is attached to the outside of the cutting blade 4 for cutting, which further improves the convenience of use.

Claims

1. A composite medical adhesive tape, characterized in that, The tape (5) is rollable and consists of multiple layers, including an anti-detachment adhesive layer (51), a fluorescent color-changing layer (52), a layered coating layer (53), and a PU transparent film (54). The adhesive matrix of the anti-detachment adhesive layer (51) contains a certain amount of nano-silicon microspheres to improve the viscosity and antibacterial properties of the adhesive. The diameter of the nano-silicon microspheres is 1 to 200 nanometers. The microspheres are silicon dioxide nanoparticles with a large specific surface area and excellent dispersibility, which can effectively enhance the adhesion and antibacterial effect of the adhesive. The fluorescent color-changing layer (52) is used to detect the brightness change of the wound healing degree by reacting wound exudate with a pH fluorescent agent. The layered coating layer (53) is used to record and observe the number of days of use for clinical management. The PU transparent film (54) helps to observe the wound condition.

2. The composite medical adhesive tape according to claim 1, characterized in that, The fluorescent color-changing layer (52) consists of a layer of non-woven fabric (521) and a layer of non-woven fabric (522), with multiple fluorescent capsules (523) bonded together in the middle. Two color-changing rings (524) are provided between the layer of non-woven fabric (521) and the layer of non-woven fabric (522). Each color-changing ring (524) is located on both sides of the fluorescent capsule (523), and can provide intuitive information about the progress of wound healing through the reaction of fluorescence change.

3. The composite medical adhesive tape according to claim 2, characterized in that, The layered coating (53) includes gauze (531), the surface of which is coated with a starch-containing gel, and a potassium iodate microcapsule (532) is disposed on the top of the gauze (531) for reacting with the starch-containing gel and air.

4. The composite medical adhesive tape according to claim 3, characterized in that, Multiple elastic balls (525) are provided between the second layer of nonwoven fabric (522) and the first layer of nonwoven fabric (521). The multiple elastic balls (525) are arranged around the edges of the first layer of nonwoven fabric (521) and the second layer of nonwoven fabric (522). Their function is to increase the overall flexibility and elasticity of the tape (5) and enhance the comfort of the entire tape (5).

5. The composite medical adhesive tape according to claim 4, characterized in that, The top of the gauze (531) is provided with (533), and multiple air vents are opened through the outer surface of both (533) and the PU transparent film (54).

Images