Bandage device for monitoring wound
By integrating a paper substrate, a peppermint extract layer, a flexible electrode, a uric acid-sensitive layer, and a conductive hydrogel layer into the bandage, and combining it with modern sensing technology, the problem of bandage pressure on the skin is solved, enabling efficient monitoring of chronic wounds and pressure sores, as well as early detection of pressure ulcers.
Patent Information
- Application Number
- CN202422510611.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-10-17
AI Technical Summary
Existing bandages require direct contact with the skin during wound inspection, which may cause pressure and skin damage, and cannot effectively monitor the wound condition.
By combining a paper substrate, a peppermint extract layer, a flexible electrode, a uric acid-sensitive layer, a pH-sensitive layer, and a conductive hydrogel layer, along with modern sensing technology, an impedance sensor array is formed to achieve efficient monitoring of chronic wound conditions.
It enables efficient monitoring of chronic wounds and pressure ulcers, improves the wound healing environment, can detect the formation of pressure ulcers in advance, and provides real-time data through multifunctional sensors.
Smart Images
Figure CN223529625U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of multifunctional bandage technology, specifically a bandage device for monitoring wounds. Background Technology
[0002] A bandage is a dressing material used for medical purposes, mainly to protect wounds, stop bleeding, immobilize injuries, or reduce swelling. Bandages can be made of a variety of materials, such as cotton, gauze, and elastic fibers, and come in different shapes and sizes to suit different wounds and body parts.
[0003] However, existing bandages typically use pressure sensors or color sensors to facilitate wound detection. This means that the pressure sensor usually needs to be in direct contact with the wound. Wearing the pressure sensor for a long time may cause pressure on the skin, leading to poor local blood circulation or skin damage, resulting in a poor healing environment and making it impossible to effectively monitor the wound. Utility Model Content
[0004] The purpose of this invention is to provide a bandage device for monitoring wounds. Through the cooperation of a paper substrate, a peppermint extract layer, a flexible electrode, a uric acid-sensitive layer, a pH-sensitive layer, and a conductive hydrogel layer, it achieves efficient monitoring of chronic wound conditions by combining modern sensing technology. It is suitable for monitoring open wounds and pressure ulcers and provides an environment that helps improve wound healing.
[0005] The technical solution adopted by this utility model to achieve the above-mentioned objective is: a bandage device for monitoring wounds, characterized in that it includes: a controller, a signal transmission unit, a bandage body, and a monitoring covering layer structure connected to one end of the bandage body;
[0006] The controller is connected to the monitoring cover structure, and the controller communicates wirelessly with the monitoring terminal through a signal transmission unit located on its body.
[0007] The monitoring coating structure includes: a fully hydrophobic paper base, a uric acid-sensitive layer, and a pH-sensitive layer, all of which are connected to the controller.
[0008] The upper surface of the fully hydrophobic paper base is sequentially covered with a uric acid-sensitive layer and a pH-sensitive layer;
[0009] The fully hydrophobic paper base is attached to the damaged area and wrapped with the main body of the bandage to achieve a fixed monitoring coating structure.
[0010] The fully hydrophobic paper base includes: a paper substrate and a peppermint extract layer;
[0011] The paper substrate is coated with peppermint extract, and a peppermint extract layer is formed on the surface of the paper substrate.
[0012] The paper substrate and the peppermint extract layer together form a fully hydrophobic paper base; the upper surface of the fully hydrophobic base is provided with a flexible electrode to increase electrical contact with the skin.
[0013] There are multiple flexible electrodes; the flexible electrodes are disposed between the fully hydrophobic substrate and the uric acid sensitive layer by ink printing.
[0014] Multiple flexible electrodes are arranged in a hexagonal array on the surface of the peppermint extract layer to form an impedance sensor array; the impedance sensor array is connected to the controller.
[0015] The outer surface of the flexible electrode is coated with a conductive hydrogel layer, which is bonded to the uric acid-sensitive layer.
[0016] The uric acid sensitive layer contains a layer of traditional Chinese medicine residue and a uric acid sensor; the uric acid sensor is connected to the controller.
[0017] A pH sensor is installed inside the pH-sensitive layer; the pH sensor is connected to the controller.
[0018] It also includes: photoelectric thin film layers;
[0019] The photoelectric thin film layer covers the upper surface of the pH-sensitive layer of the monitoring coating structure and is connected to the uric acid sensor and the pH sensor respectively to provide power to the sensors.
[0020] The fully hydrophobic paper base, uric acid sensitive layer, and pH sensitive layer are all the same size.
[0021] The signal transmission unit (10) can be any one of Bluetooth, 4G module or 5G module.
[0022] This utility model has the following beneficial effects and advantages:
[0023] 1. This utility model, through the coordinated arrangement of a paper substrate, a peppermint extract layer, a flexible electrode, a uric acid-sensitive layer, a pH-sensitive layer, and a conductive hydrogel layer, achieves efficient monitoring of chronic wound conditions when used, combined with modern sensing technology. It is suitable for monitoring open wounds and pressure ulcers, and provides an environment that helps improve wound healing.
[0024] 2. This invention combines an impedance sensor to monitor the formation of pressure ulcers in real time, allowing damage to be detected before it becomes visible.
[0025] 3. The paper substrate of this utility model has good absorbency and moderate mechanical strength, and peppermint extract is coated on the surface of the paper substrate to form a peppermint extract layer. Peppermint extract not only provides hydrophobic properties, but also helps to improve the wound healing environment due to its natural antibacterial and cooling properties.
[0026] 4. The paper substrate and peppermint extract layer of this utility model are composited to form a fully hydrophobic paper base. Flexible electrodes are printed on the fully hydrophobic paper base. The flexible electrodes are dried to ensure that the ink is cured and forms good electrical conductivity. This process ensures the accuracy and reliability of the electrodes.
[0027] 5. The uric acid sensor and pH sensor formed by the uric acid sensitive layer and pH sensitive layer of this utility model can monitor the uric acid metabolite level and the pH of the wound, respectively, thus realizing the multi-functionality of the bandage.
[0028] 6. The conductive hydrogel layer of this invention is coated and covered on the surface of the impedance sensor array. The conductive hydrogel layer improves the electrical contact with the skin. The use of the conductive hydrogel layer not only enhances the conductivity of the electrode, but also provides good adhesion, ensuring that the impedance sensor array can be stably attached to the skin surface. Attached Figure Description
[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0030] Figure 1 This is a structural diagram of the present invention;
[0031] Figure 2 This is an enlarged structural diagram of the flexible electrode of this utility model;
[0032] Figure 3 This is a diagram showing the distribution structure of the impedance sensor array of this utility model;
[0033] Figure 4 This is a system block diagram of the controller of this utility model.
[0034] In the figure: 1 is the paper substrate; 2 is the peppermint extract layer; 3 is the flexible electrode; 4 is the uric acid sensitive layer; 5 is the pH sensitive layer; 6 is the impedance sensor array; 7 is the conductive hydrogel layer; 8 is the controller; 9 is the photoelectric thin film layer; 10 is the signal transmission unit. Detailed Implementation
[0035] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0036] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0037] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.
[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0039] This invention provides a bandage device for monitoring wounds. Through the coordinated use of a paper substrate, a peppermint extract layer, a flexible electrode, a uric acid-sensitive layer, a pH-sensitive layer, and a conductive hydrogel layer, it achieves efficient monitoring of chronic wound conditions by combining modern sensing technology. It also detects and monitors the formation of pressure ulcers by combining impedance sensors and impedance spectroscopy analysis technology, even before the damage becomes visible.
[0040] like Figures 1-2 and Figure 4 As shown, specifically, this utility model discloses a bandage device for monitoring wounds, characterized in that it includes: a controller 8, a signal transmission unit 10, a bandage body, and a monitoring covering layer structure connected to one end of the bandage body.
[0041] The controller 8 is connected to the monitoring cover structure, and the controller 8 communicates wirelessly with the monitoring terminal through the signal transmission unit 10 provided on its body.
[0042] The monitoring coating structure includes: a fully hydrophobic paper base, a uric acid-sensitive layer 4, and a pH-sensitive layer 5, all connected to the controller 8.
[0043] The upper surface of the fully hydrophobic paper base is sequentially covered with a uric acid-sensitive layer 4 and a pH-sensitive layer 5.
[0044] The hydrophobic paper base is attached to the damaged area and wrapped with the main body of the bandage to fix the monitoring coating structure.
[0045] The fully hydrophobic paper base includes: a paper substrate 1 and a peppermint extract layer 2;
[0046] The surface of the paper substrate 1 is coated with peppermint extract, and a peppermint extract layer 2 is formed on the surface of the paper substrate 1;
[0047] The paper substrate 1 and the peppermint extract layer 2 form a fully hydrophobic paper base; the upper surface of the fully hydrophobic base is provided with a flexible electrode 3 for increasing electrical contact with the skin.
[0048] like Figure 3 The diagram shown is a structural diagram of the impedance sensor array of this invention. Multiple flexible electrodes 3 are present; the flexible electrodes 3 are disposed between the fully hydrophobic substrate and the uric acid sensitive layer 4 via ink printing.
[0049] Multiple flexible electrodes 3 are arranged in a hexagonal array on the surface of the peppermint extract layer 2 to form an impedance sensor array 6; the impedance sensor array 6 is connected to the controller 8.
[0050] The outer surface of the flexible electrode 3 is coated with a conductive hydrogel layer 7, which is attached to the uric acid sensitive layer 4.
[0051] The uric acid sensitive layer 4 contains a layer of Chinese herbal medicine residue and a uric acid sensor; the uric acid sensor is connected to the controller 8.
[0052] A pH sensor is installed inside the pH-sensitive layer 5; the pH sensor is connected to the controller 8.
[0053] It also includes: photoelectric thin film layer 9;
[0054] A photoelectric thin film layer 9 covers the upper surface of the pH-sensitive layer 5 of the monitoring coating structure and is connected to the uric acid sensor and the pH sensor respectively to provide power to the sensors.
[0055] The fully hydrophobic paper base, uric acid sensitive layer 4, and pH sensitive layer 5 are the same size.
[0056] The signal transmission unit 10 can be any one of Bluetooth, 4G module or 5G module.
[0057] Example 1:
[0058] Figures 1-4 The diagram shown is an overall structural schematic of one embodiment of a bandage capable of monitoring wounds according to this utility model. Please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 and Figure 4 The main structure of this embodiment includes a paper substrate 1, the surface of which is coated with a peppermint extract layer 2, and the paper substrate 1 and the peppermint extract layer 2 form a fully hydrophobic paper base.
[0059] A flexible electrode 3 is printed on the surface of the fully hydrophobic base, and a uric acid sensitive layer 4 is attached to the surface of the fully hydrophobic paper base. A pH sensitive layer 5 is attached to the surface of the uric acid sensitive layer 4.
[0060] Among them, the uric acid sensitive layer 4 contains a layer of traditional Chinese medicine residue;
[0061] It also includes an impedance sensor array 6, with several electrodes printed on the surface of the hydrophobic paper base to form a hexagonal array electrode, thereby constituting the impedance sensor array 6;
[0062] In the fabrication of the impedance sensor array 6, a series of electrodes were designed and printed on fully hydrophobic paper to form a hexagonal array. These electrodes were selectively coated with conductive hydrogel to improve electrical contact with the skin. The use of conductive hydrogel not only enhances the conductivity of the electrodes but also provides good adhesion, ensuring that the sensor array can stably adhere to the wound surface. With this configuration, we can use impedance spectroscopy to detect and monitor the formation of pressure ulcers, even before the lesion becomes visible.
[0063] It also includes a conductive hydrogel layer 7, which is coated and covered on the surface of the impedance sensor array 6;
[0064] Uric acid-sensitive layer 4 and pH-sensitive layer 5 are air-dried to form a uric acid sensor and a pH sensor;
[0065] It also includes a controller 8, which processes the values from the uric acid sensor, pH sensor, and impedance sensor array 6, and monitors the degree of wound infection based on these values.
[0066] It also includes a photoelectric thin film layer 9, which covers the surface of the bandage; the output of the controller 8 is connected to a signal transmission unit 10.
[0067] The photoelectric thin film layer 9 can utilize natural light or a special light source for photoelectric conversion, providing a stable power supply for the sensor;
[0068] The signal transmission unit 10 is used to measure and preprocess the electrical signal of the sensor unit response, and then convert it into a digital signal and send it to the smart terminal device.
[0069] The working principle of this utility model is as follows:
[0070] In practical use, the paper substrate 1 has good absorbency and moderate mechanical strength. Peppermint extract is coated on the surface of the paper substrate 1 to form a peppermint extract layer 2. The peppermint extract not only provides hydrophobic properties but also, due to its natural antibacterial and cooling properties, helps improve the wound healing environment. The paper substrate 1 and the peppermint extract layer 2 are combined to form a fully hydrophobic paper base. Flexible electrodes 3 are printed on this fully hydrophobic paper base. The flexible electrodes 3 are dried to ensure the ink cures and forms good conductivity. This process ensures the accuracy and reliability of the electrodes. A layer of traditional Chinese medicine residue is adhered within the uric acid sensitive layer 4. This not only forms a thin film on the wound surface, preventing bacteria and other harmful substances from entering the wound, but also... The bioactive components of the residue layer have a positive effect on promoting wound healing. The uric acid sensor formed by the uric acid sensitive layer 4 and the pH sensor formed by the pH sensitive layer 5 monitors the uric acid metabolite level and pH of the wound, respectively. The impedance sensor array 6 uses impedance spectroscopy analysis technology to detect and monitor the formation of pressure ulcers. The monitored data is processed by the controller 8, allowing the user to easily assess the wound based on the data. The conductive hydrogel layer 7 is applied to cover the surface of the impedance sensor array 6. The conductive hydrogel layer 7 improves the electrical contact between the sensor and the skin. The use of the conductive hydrogel layer 7 not only enhances the conductivity of the electrodes but also provides good adhesion, ensuring that the impedance sensor array 6 can be stably attached to the wound surface.
[0071] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A bandage device for monitoring wounds, characterized in that, include: The system comprises a controller (8), a signal transmission unit (10), a bandage body, and a monitoring covering layer structure connected to one end of the bandage body. The controller (8) is connected to the monitoring cover structure, and the controller (8) communicates wirelessly with the monitoring terminal through the signal transmission unit (10) provided on its body; The monitoring coating structure includes: a fully hydrophobic paper base, a uric acid sensitive layer (4), and a pH sensitive layer (5) respectively connected to the controller (8); The upper surface of the fully hydrophobic paper base is sequentially covered with a uric acid sensitive layer (4) and a pH sensitive layer (5); The fully hydrophobic paper base is attached to the damaged area and wrapped with the main body of the bandage to achieve a fixed monitoring coating structure.
2. A bandage device for monitoring wounds according to claim 1, characterized in that, The fully hydrophobic paper base includes: a paper substrate (1) and a peppermint extract layer (2); The paper substrate (1) is coated with peppermint extract, and a peppermint extract layer (2) is formed on the surface of the paper substrate (1); The paper substrate (1) and the peppermint extract layer (2) form a fully hydrophobic paper base; the upper surface of the fully hydrophobic paper base is provided with a flexible electrode (3) for increasing electrical contact with the skin.
3. A bandage device for monitoring wounds according to claim 2, characterized in that, There are multiple flexible electrodes (3); the flexible electrodes (3) are disposed between the fully hydrophobic substrate and the uric acid sensitive layer (4) by ink printing; Multiple flexible electrodes (3) are arranged in a hexagonal array on the surface of the peppermint extract layer (2) to form an impedance sensor array (6); the impedance sensor array (6) is connected to the controller (8).
4. A bandage device for monitoring wounds according to claim 2 or 3, characterized in that, The flexible electrode (3) is coated with a conductive hydrogel layer (7) on its outer surface, and the conductive hydrogel layer (7) is attached to the uric acid sensitive layer (4).
5. A bandage device for monitoring wounds according to claim 1, characterized in that, The uric acid sensitive layer (4) is provided with a traditional Chinese medicine residue layer and a uric acid sensor; the uric acid sensor is connected to the controller (8).
6. A bandage device for monitoring wounds according to claim 1, characterized in that, A pH sensor is provided inside the pH-sensitive layer (5); the pH sensor is connected to the controller (8).
7. A bandage device for monitoring wounds according to claim 1, characterized in that, Also includes: Photoelectric thin film layer (9); The photoelectric thin film layer (9) covers the upper surface of the pH sensitive layer (5) of the monitoring coating structure and is connected to the uric acid sensor and the pH sensor respectively to provide the sensor power.
8. A bandage device for monitoring wounds according to claim 1, characterized in that, The fully hydrophobic paper base, uric acid sensitive layer (4), and pH sensitive layer (5) are all the same size.
9. A bandage device for monitoring wounds according to claim 1, characterized in that, The signal transmission unit (10) can be any one of Bluetooth, 4G module or 5G module.