Postoperative bone fixing device acting on legs
The postoperative bone fixation device, which uses multi-layered elastic fiber fabric and built-in pressure sensors, solves the problems of insufficient flexibility and comfort in traditional fixation methods. It achieves uniform pressure distribution and real-time monitoring, reduces patient discomfort and complications, and improves the safety and convenience of treatment.
Patent Information
- Application Number
- CN202422296581.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-09-20
AI Technical Summary
Traditional postoperative fixation methods lack flexibility and comfort, cannot adjust pressure according to the patient's recovery, and are prone to causing discomfort and complications. Furthermore, existing smart fixation devices are expensive, complex to operate, or cannot monitor pressure in real time.
Featuring a multi-layered elastic fiber fabric design, combined with a removable gel pad and built-in pressure sensor, it communicates with a computer terminal via a wireless transceiver to achieve pressure monitoring and adjustment, providing uniform pressure distribution and wound protection.
It improves the comfort and adaptability of postoperative fixation devices, reduces swelling and pain, lowers the risk of complications, simplifies the operation process, and improves the convenience and safety of treatment.
Smart Images
Figure CN223529603U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a postoperative bone fixation device for the leg. Background Technology
[0002] Postoperative immobilization is a crucial part of the treatment of fractures, surgeries, or other leg injuries. However, traditional postoperative immobilization methods, such as the use of rigid materials like plaster casts or metal braces, while providing necessary support, often lack flexibility and comfort. These materials are not easily adjustable and cannot be tailored to the patient's specific recovery progress, potentially leading to discomfort or restricted blood circulation.
[0003] Postoperative limbs are prone to swelling, requiring pressure bandaging to reduce it. Traditional pressure bandaging methods typically use cotton pads, but this method is prone to slipping off in areas like the hands and feet, is inconvenient to operate, lacks convenience, and is difficult to reposition. Especially when using traditional cotton pads for pressure bandaging, varying techniques can lead to uneven pressure, potentially causing peroneal nerve damage at bony landmarks such as the fibula, or pressure sores on bony structures like the patella. These problems highlight the limitations of current postoperative fixation techniques in terms of adaptability.
[0004] In recent years, with the development of materials science and smart technology, some innovative postoperative fixation devices have emerged. These devices attempt to use softer materials that better conform to the patient's body shape and integrate sensors and intelligent control systems to achieve more precise pressure control and monitoring. Nevertheless, these devices still have some problems in practical applications, such as high cost, complex operation or insufficient user customization, inability to monitor pressure or blood supply in real time, and uneven or unstable pressure.
[0005] Therefore, there is an urgent need to develop a fixation device that can provide stable support, adapt to changes in leg swelling, and possess good adjustability and comfort. Furthermore, it should be able to monitor changes in blood vessels or pressure after compression bandaging in real time to reduce complications and improve ease of use. This is a pressing issue in the field of postoperative fixation technology in clinical orthopedics. Moreover, this device should be able to flexibly adjust according to the patient's recovery progress to adapt to physiological changes in the leg, thereby reducing patient discomfort and improving treatment convenience. Utility Model Content
[0006] The purpose of this invention is to overcome the defects of the prior art and provide a postoperative bone fixation device for the leg. By combining the first and second elastic fiber fabric layers and adding a detachable gel pad, the device can not only provide a uniform pressure distribution, reduce postoperative swelling and pain, but also provide effective pressure protection for the wound and promote the healing process.
[0007] The objective of this utility model can be achieved through the following technical solutions:
[0008] This utility model provides a postoperative bone fixation device for the leg, including a flexible pressurizable body fitted onto the leg and foot fixation area and knee fixation area disposed at both ends of the flexible pressurizable body;
[0009] The flexible pressurizable body includes a first elastic fiber fabric layer, a second elastic fiber fabric layer disposed inside the first elastic fiber fabric layer, and a pressurizable interlayer disposed between the first elastic fiber fabric layer and the second elastic fiber fabric layer, wherein the second elastic fiber fabric layer is in contact with the user's calf.
[0010] The foot fixation area and the knee fixation area respectively include a third elastic fiber fabric layer and a fourth fabric layer, and the third elastic fiber fabric layer is simultaneously connected to the first elastic fiber fabric layer and the second elastic fiber fabric layer.
[0011] The pressurizable interlayer is provided with a valve for inflation;
[0012] A gel pad is detachably attached to the inner side of the second elastic fiber fabric layer, the gel pad being used for pressure protection of wounds on the legs.
[0013] Furthermore, at least two pressure sensors are detachably adhered to the second elastic fiber fabric, the pressure sensors being used to acquire the pressure between the user's leg and the inner wall of the pressurizable body;
[0014] The pressure sensor is equipped with a wireless transceiver, which is connected to an external computer terminal for communication.
[0015] Furthermore, one side of the gel pad is an adhesive surface, and the other side is a gel layer.
[0016] The gel pad is also located on the inner side of the second elastic fiber fabric layer at the positions corresponding to the bony prominences of the proximal and distal fibula, and at the positions corresponding to the bony prominences of the patella.
[0017] Furthermore, the gel layer is one of a superabsorbent resin hydrogel, a polyacrylic acid hydrogel, or a polyacrylamide hydrogel. The gel layer has excellent water absorption properties.
[0018] Furthermore, the pressure range of the pressurizable interlayer is 10 to 60 mmHg.
[0019] Furthermore, the adhesive surface is the hooked, bristly side of a Velcro closure.
[0020] Furthermore, the valve stem is equipped with a one-way valve.
[0021] Furthermore, the pressurizable interlayer is a silicone or rubber material with a gap-shaped cavity in the middle.
[0022] Furthermore, a hand-operated air pump is provided on the first elastic fiber fabric layer.
[0023] Furthermore, the second elastic fiber fabric layer has a pulse sensor at the corresponding position of the anterior or posterior tibial artery at the distal end of the tibia.
[0024] Furthermore, the foot fixing area is fitted onto the ankle and / or the ball of the foot.
[0025] Furthermore, the knee fixation area is fitted above the knee.
[0026] Furthermore, the first elastic fiber fabric layer, the second elastic fiber fabric layer, and the third elastic fiber fabric layer are all selected from one of modal fiber fabric, spandex fiber fabric, acrylic fiber fabric, and nylon fiber fabric.
[0027] Furthermore, the first elastic fiber fabric layer and the second elastic fiber fabric layer are fixed together by stitching.
[0028] Furthermore, the first elastic fiber fabric layer and the second elastic fiber fabric layer are connected to the third elastic fiber fabric layer by stitching.
[0029] Compared with the prior art, the present invention has the following technical advantages:
[0030] 1) The postoperative bone fixation device of this utility model provides users with comfort and adaptability during fixation through its innovative multi-layer elastic fiber fabric design. By combining the first and second elastic fiber fabric layers and adding a removable gel pad, the device can not only provide uniform pressure distribution, reducing postoperative swelling and pain, but also provide effective pressure protection for the wound and promote the healing process.
[0031] 2) This invention uses a pressure sensor to monitor the pressure applied to the wound, ensuring it remains within a safe range to prevent skin necrosis or compartment syndrome caused by excessive pressure, while also preventing treatment effectiveness from being affected by insufficient pressure. The pressure sensor's monitoring mechanism promotes wound healing, reduces complications, and accelerates the reduction of limb swelling, which is crucial for postoperative recovery.
[0032] 3) Furthermore, the second elastic fiber fabric layer of this invention features a pulse sensor at the location corresponding to the dorsalis pedis artery or posterior tibial artery at the distal end of the tibia. Monitoring distal vascular pulsation is clinically significant for assessing whether blood vessels are damaged during surgery or whether complications such as limb ischemia due to excessive pressure exist. The disappearance of distal vascular pulsation may indicate the need for surgical intervention, thus preventing potential complications. Through these innovative designs, this invention provides a safer and more effective solution in the field of postoperative fixation.
[0033] 4) This invention innovatively combines a pressure sensor with a convenient kit structure, providing a novel postoperative fixation solution. Through the built-in pressure sensor, this invention can accurately monitor and adjust the pressure applied to the wound, ensuring that it is neither too high, leading to skin necrosis or compartment syndrome, nor too low, affecting the effectiveness of the pressure on the limb. Traditional pressure bandaging methods require adding cotton pads and cumbersome bandaging, while this invention only requires simple application and pressure, greatly simplifying the process. This convenience not only improves efficiency and reduces the operational difficulty for medical staff, but also reduces patient discomfort and trauma.
[0034] 5) This invention employs a built-in pressure sensor and wireless transceiver, allowing doctors and patients to monitor the pressure status of the leg in real time, ensuring the safety and effectiveness of treatment. Simultaneously, the pressure sensor can communicate with the computer terminal at the nurses' station, facilitating real-time monitoring and enabling nurses to promptly call doctors. Furthermore, the design of the one-way valve and hand-operated air pump simplifies the operation process, allowing users to easily adjust the pressure to meet personalized treatment needs.
[0035] 6) The intermittent cavity made of silicone or rubber material in this invention provides excellent cushioning and support, while the integration of a pulse sensor provides additional data support for monitoring blood flow. The variety of fabric layer options and the Velcro-designed gel pad further enhance the product's flexibility and user-friendliness, ensuring optimal fixation and protection at different stages of recovery. Attached Figure Description
[0036] Figure 1 This is a schematic diagram of the postoperative bone fixation device for the leg in this utility model.
[0037] In the picture:
[0038] Flexible pressurizable body-1
[0039] Foot fixation area -2
[0040] Knee fixation zone - 3
[0041] First elastic fiber fabric layer - 11
[0042] Second elastic fiber fabric layer - 12
[0043] Pressurized interlayer-13
[0044] Gel Pad-5
[0045] Valve-8
[0046] Kneading air pump-9
[0047] Third elastic fiber fabric layer - 4
[0048] Fourth fabric layer - 6
[0049] Pressure Sensor-7 Detailed Implementation
[0050] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Component models, material names, connection structures, control methods, algorithms, and other features not explicitly described in this technical solution are considered common technical features disclosed in the prior art.
[0051] Example 1
[0052] This embodiment provides a postoperative bone fixation device for the leg, including a flexible, pressurizable body 1 that fits over the leg and foot fixation areas 2 and knee fixation areas 3 located at both ends of the flexible, pressurizable body. See details below. Figure 1 .
[0053] The flexible pressurizable body 1 includes a first elastic fiber fabric layer 11, a second elastic fiber fabric layer 12 disposed inside the first elastic fiber fabric layer 11, and a pressurizable interlayer 13 disposed between the first elastic fiber fabric layer 11 and the second elastic fiber fabric layer 12. The second elastic fiber fabric layer 12 contacts the user's lower leg. Regarding the adaptability of the multi-layered elastic fabric, through the combination of the first and second elastic fiber fabric layers, this invention can closely conform to the shape of the user's leg, providing necessary support and fixation while maintaining comfort.
[0054] The foot fixation area 2 and the knee fixation area 3 each include a third elastic fiber fabric layer 4 and a fourth fabric layer 6, respectively. The third elastic fiber fabric layer 4 is simultaneously connected to the first elastic fiber fabric layer 11 and the second elastic fiber fabric layer 12. The foot fixation area 2 is fitted over the ankle and / or the sole of the foot. The design of the foot fixation area ensures comprehensive fixation of the ankle and / or the sole of the foot, enhancing overall stability and therapeutic effect.
[0055] The pressurized interlayer 13 is equipped with an air valve 8 for inflation. Utilizing the design of the pressurized interlayer and air valve, users can apply varying degrees of pressure to the leg as needed. This pressure adjustment helps reduce swelling and supports postoperative recovery.
[0056] A gel pad 5 is detachably attached to the inner side of the second elastic fiber fabric layer 12. The gel pad 5 is used for pressure protection of wounds on the legs.
[0057] The gel pad 5 is also located on the inner side of the second elastic fiber fabric layer 12 at the positions corresponding to the bony protrusions at the proximal and distal ends of the fibula, and at the positions corresponding to the bony protrusions at the patella.
[0058] The gel pad 5 has an adhesive side on one side and a gel layer on the other. The gel pad is designed to protect leg wounds, reducing pain and swelling through pressure-based protection while promoting wound healing. The Velcro design of the gel pad allows users to adjust its position themselves.
[0059] At least two pressure sensors 7 are detachably adhered to the inner wall of the second elastic fiber fabric. These pressure sensors 7 are used to acquire the pressure between the user's leg and the inner wall of the pressurizable body 1. A wireless transceiver is connected to each pressure sensor 7, and the wireless transceiver communicates with an external computer terminal. The built-in pressure sensors can monitor and record the pressure applied to the leg in real time, and transmit the data to the external computer terminal via the wireless transceiver for remote monitoring. This not only improves the safety of treatment but also provides doctors with important treatment feedback.
[0060] The valve 8 is equipped with a one-way valve. This one-way valve ensures that gas can only enter and not escape, maintaining stable pressure within the mounting device and preventing reduced therapeutic effect due to insufficient pressure. The valve 8 can be released by pressing, similar to the principle of a tire valve.
[0061] The pressure range of the pressurizable interlayer is 10 to 60 mmHg. The pressurizable interlayer 13 is made of silicone or rubber material with a gap-shaped cavity in the middle.
[0062] A fixed insertion port is provided on the first elastic fiber fabric layer 11, and one end of the hand-operated air pump 9 is inserted into the fixed insertion port. The hand-operated air pump 9 is detachably inserted into the first elastic fiber fabric layer 11, and can be removed to connect with the valve 8 for use. The design of the hand-operated air pump simplifies the inflation process, allowing users to easily adjust the pressure to adapt to different treatment stages and individual needs. The hand-operated air pump 9 is a well-known existing product in the art, and will not be described in detail here.
[0063] The second elastic fiber fabric layer 12 has a pulse sensor located at the corresponding position of the anterior or posterior tibial artery at the distal end of the tibia. The pulse sensor is connected to a wireless transceiver and can monitor blood flow, providing doctors with important information about the patient's recovery progress.
[0064] The first elastic fiber fabric layer 11, the second elastic fiber fabric layer 12, and the third elastic fiber fabric layer 4 are all selected from one of the following: modal fiber fabric, spandex fiber fabric, acrylic fiber fabric, and nylon fiber fabric. The first elastic fiber fabric layer 11 and the second elastic fiber fabric layer 12 are fixed together by stitching. The first elastic fiber fabric layer 11 and the second elastic fiber fabric layer 12 are connected to the third elastic fiber fabric layer 4 by stitching.
[0065] 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 postoperative bone fixation device for the leg, characterized in that, It includes a flexible pressurizable body (1) that fits over the legs and foot fixing area (2) and knee fixing area (3) located at both ends of the flexible pressurizable body; The flexible pressurizable body (1) includes a first elastic fiber fabric layer (11), a second elastic fiber fabric layer (12) disposed inside the first elastic fiber fabric layer (11), and a pressurizable interlayer (13) disposed between the first elastic fiber fabric layer (11) and the second elastic fiber fabric layer (12), wherein the second elastic fiber fabric layer (12) is in contact with the user's lower leg. The foot fixing area (2) and the knee fixing area (3) respectively include a third elastic fiber fabric layer (4) and a fourth fabric layer (6), and the third elastic fiber fabric layer (4) is connected to the first elastic fiber fabric layer (11) and the second elastic fiber fabric layer (12). The pressurizable interlayer (13) is provided with a valve (8) for inflation; The inner side of the second elastic fiber fabric layer (12) is provided with a detachable gel pad (5), which is placed on the postoperative wound on the leg and is used for uniform pressure protection of the postoperative wound on the leg.
2. The postoperative bone fixation device for the leg according to claim 1, characterized in that, At least two pressure sensors (7) are detachably attached to the second elastic fiber fabric. The pressure sensors (7) are used to obtain the pressure between the user's leg and the inner wall of the pressurizable body (1). A wireless transceiver is connected to the pressure sensor (7), and the wireless transceiver is connected to an external computer terminal for communication.
3. The postoperative bone fixation device for the leg according to claim 1, characterized in that, One side of the gel pad (5) is an adhesive surface, and the other side is a gel layer; The gel layer is one of superabsorbent resin hydrogel, polyacrylic acid hydrogel, or polyacrylamide hydrogel. The adhesive side is the hooked, bristly side of a Velcro strap.
4. The postoperative bone fixation device for the leg according to claim 3, characterized in that, The gel pad (5) is also located on the inner side of the second elastic fiber fabric layer (12): the proximal and distal fibular protrusions correspond to the corresponding bony protrusions, and the patella corresponds to the corresponding bony protrusions.
5. A postoperative bone fixation device for the leg according to claim 1, characterized in that, The valve (8) is equipped with a one-way valve.
6. A postoperative bone fixation device for the leg according to claim 1, characterized in that, The pressurizable interlayer (13) is made of silicone or rubber material with a gap-shaped cavity in the middle.
7. A postoperative bone fixation device for the leg according to claim 1, characterized in that, A hand-operated air pump (9) is provided on the first elastic fiber fabric layer (11).
8. A postoperative bone fixation device for the leg according to claim 1, characterized in that, The second elastic fiber fabric layer (12) has a pulse sensor at the location corresponding to the dorsalis pedis artery or posterior tibial artery at the distal end of the tibia.
9. A postoperative bone fixation device for the leg according to claim 1, characterized in that, The foot fixing area (2) is fitted onto the ankle and / or the sole of the foot; The knee fixation area (3) is fitted above the knee.
10. A postoperative bone fixation device for the leg according to claim 1, characterized in that, The first elastic fiber fabric layer (11), the second elastic fiber fabric layer (12), and the third elastic fiber fabric layer (4) are all selected from one of modal fiber fabric, spandex fiber fabric, acrylic fiber fabric, and nylon fiber fabric.