A hemostatic bandage
By integrating piezoelectric sensors and limiters into the hemostatic bandage, real-time monitoring and flexible adjustment of pressure at the hemostasis site are achieved, solving the problem of existing hemostatic bandages being difficult to dynamically adjust and detect pressure, thus improving hemostasis effect and patient comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HEALTH VOCATIONAL COLLEGE
- Filing Date
- 2025-04-21
- Publication Date
- 2026-06-26
Smart Images
Figure CN224403715U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically a hemostatic bandage. Background Technology
[0002] In the field of medical emergency and wound care, the use of hemostatic bandages is crucial. During use, the tightness of the bandage needs to be dynamically adjusted periodically according to the wound's healing progress. Appropriate tightness effectively stops bleeding while preventing excessive pressure from hindering blood circulation, thus reducing patient discomfort. This dynamic adjustment function plays a key role in improving treatment outcomes and patient experience.
[0003] However, most existing hemostatic bandages use only a single layer of Velcro for fixation. This single method of fixation has many drawbacks. On the one hand, in practice, it is difficult to achieve flexible dynamic adjustment, and attempts to adjust it can easily cause the entire device to detach, thus exacerbating the bleeding. On the other hand, these bandages lack pressure sensing components, making it impossible to accurately determine the internal pressure of the bandage, often resulting in bandages that are too loose or too tight, which urgently needs improvement. Utility Model Content
[0004] To address the aforementioned technical problems, this utility model provides a hemostatic bandage that uses a piezoelectric sensor combined with a display screen to monitor the pressure value at the hemostatic site in real time. With the help of a limiter and connectors at both ends, it achieves flexible adjustment of the binding length and double fixation. The structure is simple and the operation is convenient.
[0005] To achieve its technical objectives, this utility model adopts the following technical solution:
[0006] A hemostatic bandage includes an elastic fixing band, which has a skin-contact side and a distal side. One end of the elastic fixing band is provided with a first connector on the skin-contact side, and a limiter is fixedly installed at the other end. A gauze fixing groove and an LCD screen are respectively provided in the middle of the skin-contact side and the distal side. A piezoelectric sensor is provided in the gauze fixing groove, and the LCD screen and the piezoelectric sensor are electrically connected. A limit hole is provided between the gauze fixing groove and the first connector. A second connector is provided between the LCD screen and the limiter on the distal side. The second connector and the first connector are detachably connected. The limiter and the limit hole are mutually compatible and are used to adjust the binding force of the elastic fixing bandage.
[0007] Preferably, the piezoelectric sensor integrates an MCU and a PCB module, and the piezoelectric sensor is used for the detection, conversion, processing and transmission of pressure data.
[0008] Preferably, the LCD screen integrates a power supply.
[0009] Preferably, the limiter includes a limiter housing, and a paddle is slidably mounted on the front side of the limiter housing via a slide rail. The front end of the paddle protrudes from the front wall of the limiter housing and the paddle can slide up and down along the slide rail.
[0010] Preferably, a spring is vertically installed inside the limiter housing. One end of the spring is fixedly connected to the upper wall of the lever, and the other end is fixedly connected to the upper wall of the limiter housing. The spring is used to push the lever to slide downward.
[0011] More preferably, the surface of the spring is provided with a spring-encased soft silicone shell.
[0012] More preferably, the inside of the limiter housing is further provided with a fixing insert, the upper end of the fixing insert is fixedly connected to the lower wall of the lever, the lower end protrudes from the lower wall of the limiter housing, and the lower end of the fixing insert is adapted to the limiting hole.
[0013] More preferably, the paddle slides downward under the push of the spring, thereby causing the fixed insert to move downward.
[0014] More preferably, a limiting frame is provided on the lower side of the limiting device housing, the limiting frame being adapted to the elastic fixing strap and the limiting frame being used for the elastic fixing strap to pass through.
[0015] More preferably, the lower wall of the limiting frame is provided with a slot, and the slot is adapted to the lower end of the fixing insert.
[0016] The beneficial effects of this utility model are as follows:
[0017] This invention uses a piezoelectric sensor and an LCD screen to monitor wound pressure. In addition, the limiter and end connector can flexibly adjust the binding force to achieve double fixation and are easy to operate. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the skin-contact surface of this utility model;
[0019] Figure 2 This is a schematic diagram of the structure of the distal skin surface of this utility model;
[0020] Figure 3 This is a three-dimensional structural diagram of the limiter of this utility model;
[0021] Figure 4 This is a cross-sectional structural diagram of the limiter of this utility model;
[0022] Figure 5 This is an assembly diagram of the present invention in use.
[0023] Figure label:
[0024] 1. Elastic fixing strap; 2. First connecting piece; 3. Second connecting piece; 4. Gauze fixing groove; 5. Piezoelectric sensor; 6. LCD screen; 7. Limiting hole; 8. Limiter; 9. Spring; 10. Limiter housing; 11. Paddle; 12. Fixing insert; 13. Slide rail; 14. Slot; 15. Limiting frame. Detailed Implementation
[0025] In the description of this utility model, it should be noted that the terms "upper / lower", "front / rear", "inner / outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed 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 a connection within the components of a compatible model. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, unless otherwise specified, all components used in this application are commercially available components, and the connection between different components can be achieved through conventional technical means.
[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0028] A type of hemostatic bandage, mainly used to stop bleeding in the limbs, such as... Figure 1 and Figure 2 As shown, the device includes an elastic fixing band 1, which has a skin-contact side and a non-skin-contact side. One end of the elastic fixing band 1 is provided with a first connector 2 on the skin-contact side, and a limiter 8 is fixedly installed on the other end. In this embodiment, the connector is a Velcro fastener. The middle parts of the skin-contact side and the non-skin-contact side are respectively provided with a gauze fixing groove 4 and an LCD screen 6. A piezoelectric sensor 5 is provided in the gauze fixing groove 4, and the LCD screen 6 and the piezoelectric sensor 5 are electrically connected. A limit hole 7 is provided between the gauze fixing groove 4 and the first connector 2. A second connector 3 is provided between the LCD screen 6 and the limiter 8 on the non-skin-contact side. The first connector 2 and the second connector 3 are detachably connected. The limiter 8 and the limit hole 7 are mutually compatible and are used to adjust the binding force of the elastic fixing band 1.
[0029] Preferably, the piezoelectric sensor 5 integrates an MCU and a PCB module, and is used for the detection, conversion, processing and transmission of pressure data.
[0030] Preferably, the LCD screen 6 integrates a power supply.
[0031] Specifically, the gauze fixing groove 4 can fix the hemostatic gauze and ensure that the gauze will not shift due to friction between the device and the skin; the piezoelectric sensor 5 can monitor the pressure at the hemostatic site in real time and convert the pressure data into a digital signal to be displayed on the LCD screen 6, providing data support for the operator; the LCD screen 6 displays information digitally, and together with the limiter 8 and the limit hole 7, and in conjunction with the first connector 2 and the second connector 3, dynamic adjustment can be achieved.
[0032] As a preferred option, such as Figure 3 and Figure 4 As shown, the limiter 8 includes a limiter housing 10. A lever 11 is slidably mounted on the front side of the limiter housing 10 via a slide rail 13. The front end of the lever 11 protrudes from the front wall of the limiter housing 10 and the lever 11 can slide up and down along the slide rail 13.
[0033] Specifically, the paddle 11 is horizontal, the slide rail 13 is vertical, and the front end of the paddle 11 protrudes from the front wall of the limiter housing 10.
[0034] As a preferred embodiment, a spring 9 is vertically arranged inside the limiter housing 10. One end of the spring 9 is fixedly connected to the upper wall of the lever 11, and the other end is fixedly connected to the upper wall of the limiter housing 10. The spring 9 is used to push the lever 11 to slide downward.
[0035] Specifically, during the up-and-down sliding of the paddle 11, the spring 9 is in a compressed state, and the spring 9 always wants to push the paddle 11 to slide downwards; when the paddle 11 is at the bottom, the spring 9 is in a normal state.
[0036] As a better alternative, the surface of the spring 9 is provided with a soft silicone shell, which can reduce the wear of the spring 9 and has the functions of shock absorption, moisture protection and oxidation prevention.
[0037] As a better fit, the inside of the limiter housing 10 is also provided with a fixing insert 12, the upper end of the fixing insert 12 is fixedly connected to the lower wall of the lever 11, the lower end protrudes from the lower wall of the limiter housing 10, and the lower end of the fixing insert 12 is adapted to the limit hole 7.
[0038] Preferably, the paddle 11 slides downward under the push of the spring 9, thereby causing the fixed insert 12 to move downward.
[0039] Specifically, in actual operation, the fixing insert 12 will move downward through the limiting hole 7 and finally be inserted into the slot 14, thereby limiting the active length of the elastic fixing band 1.
[0040] As a better fit, a limiting frame 15 is provided on the lower side of the limiting housing 10. The limiting frame 15 is adapted to the elastic fixing band 1 and the limiting frame 15 is used for the elastic fixing band 1 to pass through.
[0041] As a better fit, the lower wall of the limiting frame 15 is provided with a slot 14, which is adapted to the lower end of the fixing insert 12.
[0042] The operation method of this utility model is as follows:
[0043] Unfold the elastic fixation band 1, place and fix the gauze in the gauze fixing groove 4, align the gauze fixing groove 4 with the hemostasis area, and place the skin-contact side of the elastic fixation band 1 against the skin of the limb to be hemostatically stopped. Move the lever 11 upwards; the fixing insert 12 will move upwards away from the slot 14 under the action of the lever 11. Pass the first connecting piece 2 of the skin-contact side of the elastic fixation band 1 through the limiting frame 15 of the limiter 8, selecting an appropriate length so that the limiting hole 7 at the corresponding length aligns with the slot 14 and the lower end of the fixing insert 12. Release the lever 11; the lever 11 will slide downwards under the action of the spring 9, causing the fixing insert 12 to pass through the limiting hole 7 and finally be inserted into the slot 14, thus completing the initial fixation. Then, fix the first connecting piece 2 and the second connecting piece 3 together to complete the final fixation. Figure 5 As shown, the entire elastic fixing band 1 is a ring at this time; during this process, the piezoelectric sensor 5 will always monitor the pressure at the hemostasis point and display it on the LCD screen 6.
[0044] Although the embodiments of this utility model have been described in the specification, these embodiments are merely illustrative and should not limit the scope of protection of this utility model. Various omissions, substitutions, and modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.
Claims
1. A hemostatic bandage, characterized in that, The device includes an elastic fixing band, which has a skin-contact side and a distal side. One end of the elastic fixing band has a first connector on the skin-contact side, and the other end has a limiter fixedly installed. The middle portions of the skin-contact side and the distal side each have a gauze fixing groove and an LCD screen, respectively. A piezoelectric sensor is installed in the gauze fixing groove, and the LCD screen and the piezoelectric sensor are electrically connected. A limit hole is provided between the gauze fixing groove and the first connector. A second connector is provided between the LCD screen and the limiter on the distal side. The second connector and the first connector are detachably connected. The limiter and the limit hole are mutually compatible and are used to adjust the binding force of the elastic fixing band.
2. The hemostatic bandage as described in claim 1, characterized in that, The piezoelectric sensor integrates an MCU and a PCB module, and is used for the detection, conversion, processing, and transmission of pressure data.
3. The hemostatic bandage as described in claim 1, characterized in that, The LCD screen integrates a power supply.
4. The hemostatic bandage as described in claim 1, characterized in that, The limiter includes a limiter housing, and a paddle is slidably mounted on the front side of the limiter housing via a slide rail. The front end of the paddle protrudes from the front wall of the limiter housing and the paddle can slide up and down along the slide rail.
5. A hemostatic bandage as described in claim 4, characterized in that, A spring is vertically installed inside the housing of the limiter. One end of the spring is fixedly connected to the upper wall of the lever, and the other end is fixedly connected to the upper wall of the housing of the limiter. The spring is used to push the lever to slide downward.
6. A hemostatic bandage as described in claim 5, characterized in that, The surface of the spring is provided with a soft silicone shell covering the spring.
7. A hemostatic bandage as described in claim 6, characterized in that, The inside of the limiter housing is also provided with a fixing insert. The upper end of the fixing insert is fixedly connected to the lower wall of the lever, and the lower end protrudes from the lower wall of the limiter housing. The lower end of the fixing insert is adapted to the limiting hole.
8. A hemostatic bandage as described in claim 7, characterized in that, The lever slides downward under the push of the spring, thereby causing the fixed insert to move downward.
9. A hemostatic bandage as described in claim 8, characterized in that, A limiting frame is provided on the lower side of the limiting device housing. The limiting frame is adapted to the elastic fixing band and is used for the elastic fixing band to pass through.
10. A hemostatic bandage as described in claim 9, characterized in that, The lower wall of the limiting frame is provided with a slot, and the slot is adapted to the lower end of the fixing insert.