Postoperative bone fixing device acting on legs

Abstract

The invention relates to a postoperative bone fixing device acting on legs. The postoperative bone fixing device comprises a flexible pressurizable body, a foot fixing area and a knee fixing area, wherein the foot fixing area and the knee fixing area are arranged at the two ends of the flexible pressurizable body. The flexible pressurizable main body comprises a first elastic fiber fabric layer, a second elastic fiber fabric layer arranged on the inner side of the first elastic fiber fabric layer, and a pressurizable interlayer arranged between the first elastic fiber fabric layer and the second elastic fiber fabric layer, and the second elastic fiber fabric layer is in contact with the shank of a user; an inflating valve for inflating is arranged on the pressurizing interlayer; a gel pad is detachably arranged on the inner side of the second elastic fiber fabric layer, and the gel pad is used for pressing type protection of wounds on the legs. Compared with the prior art, through the combination of the first elastic fiber fabric layer and the second elastic fiber fabric layer and the addition of the detachable gel pad, the device not only can provide uniform pressure distribution and reduce postoperative swelling and pain, but also can perform effective pressing type protection on a wound and promote the healing process.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a postoperative bone fixation device acting on the leg. Background Art

[0002] Postoperative immobilization is an important part of the treatment process for fractures, surgeries or other leg injuries. However, traditional postoperative immobilization methods, such as the use of hard materials such as plaster or metal braces, although they can provide necessary support, often lack flexibility and comfort. These materials are not easy to adjust, and the pressure cannot be adjusted according to the patient's specific recovery situation, which may cause discomfort to the patient or restrict blood circulation.

[0003] In particular, limbs are prone to swelling after surgery, and pressure bandages are needed to reduce swelling. Traditional pressure bandage methods usually use cotton pads, but this method is easy to fall off in parts such as hands and feet, and is inconvenient to operate, poor in convenience, and difficult to adjust the position. Especially when using traditional cotton pads for pressure bandages, due to different techniques, uneven pressure may occur, which can easily cause damage to the common peroneal nerve at bony landmarks such as the fibula, or cause skin pressure sores at bony structures such as the patella. These problems highlight the lack of adaptability of existing postoperative fixation technologies.

[0004] In recent years, with the development of material science and intelligent technology, some innovative postoperative fixation devices have begun to emerge. These devices try to use softer materials that are more adaptable 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, uneven or unstable pressure, etc.

[0005] Therefore, it is urgent to develop a fixation device that can provide stable support and adapt to changes in leg swelling, and has good adjustability and comfort, and can monitor blood vessels or pressure changes after pressure bandaging in real time to reduce complications and facilitate use. This is an urgent problem to be solved in the current field of clinical orthopedic postoperative fixation technology. And this device should be able to flexibly adjust according to the patient's recovery progress to adapt to the physiological changes of the patient's legs, while reducing the patient's discomfort and improving the convenience of treatment. Summary of the invention

[0006] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a postoperative bone fixation device for the leg. Through the combination of the first and second elastic fiber fabric layers and the addition of a detachable gel pad, the device can not only provide uniform pressure distribution, reduce postoperative swelling and pain, but also effectively press the wound to protect it and promote the healing process.

[0007] The purpose of the present invention can be achieved by the following technical solutions:

[0008] The present invention provides a postoperative bone fixation device acting on the leg, comprising a flexible pressurizable body sleeved on the leg and a foot fixation area and a knee fixation area arranged at two ends of the flexible pressurizable body;

[0009] The flexible pressurizable main body comprises a first elastic fiber fabric layer, a second elastic fiber fabric layer arranged inside the first elastic fiber fabric layer, and a pressurizable interlayer arranged between the first elastic fiber fabric layer and the second elastic fiber fabric layer, wherein the second elastic fiber fabric layer contacts the user's calf;

[0010] The foot fixing area and the knee fixing area respectively include a third elastic fiber fabric layer and a fourth elastic fiber fabric layer, and the third elastic fiber fabric layer is connected to the first elastic fiber fabric layer and the second elastic fiber fabric layer at the same time;

[0011] The pressurizable interlayer is provided with an air valve for inflation;

[0012] The inner side of the second elastic fiber fabric layer is detachably bonded with a gel pad, and the gel pad is used for press-type protection of wounds on the legs.

[0013] Furthermore, at least two pressure sensors are detachably adhered to the second elastic fiber fabric, and the pressure sensors are used to obtain the pressure between the user's legs and the inner wall of the pressurizable body;

[0014] The pressure sensor is matched and connected with a wireless signal transceiver, and the wireless signal transceiver is communicatively connected with an external computer terminal.

[0015] Furthermore, one side of the gel pad is a sticky surface, and the other side is a gel layer.

[0016] The gel pad is also arranged on the inner side of the second elastic fiber fabric layer: at positions corresponding to the bony protrusions at the proximal and distal ends of the fibula and at positions corresponding to the bony protrusions at the patella.

[0017] Furthermore, the gel layer is one of highly absorbent resin hydrogel, polyacrylic acid hydrogel or polyacrylamide hydrogel. The gel layer has excellent water absorption performance.

[0018] Furthermore, the pressure range of the pressurizable interlayer is 10 to 60 mmHg.

[0019] Furthermore, the adhesive surface is a hooked bristle surface of Velcro.

[0020] Furthermore, a one-way valve is provided in the valve mouth.

[0021] Furthermore, the pressurizable interlayer is a silicone or rubber material with a gap-shaped cavity in the middle.

[0022] Furthermore, a hand-kneading air pump is provided on the first elastic fiber fabric layer.

[0023] Furthermore, the second elastic fiber fabric layer is provided with a pulse sensor at a position corresponding to the anterior tibial artery or the posterior tibial artery at the distal end of the tibia.

[0024] Furthermore, the foot fixing area is covered on the ankle and / or the sole of the foot.

[0025] Furthermore, the knee fixing area is sleeved 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 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 the present invention provides users with comfort and adaptability during fixation with its innovative multi-layer elastic fiber fabric design. Through the combination of the first and second elastic fiber fabric layers and the addition of a detachable gel pad, the device can not only provide uniform pressure distribution, reduce postoperative swelling and pain, but also effectively press the wound to protect it and promote the healing process.

[0031] 2) The present invention can not only monitor the pressure applied to the wound through the pressure sensor to ensure that it is within a safe range to avoid skin necrosis or compartment syndrome caused by excessive pressure, but also prevent the treatment effect from being affected by too low pressure. The monitoring mechanism of the pressure sensor can promote wound healing and reduce complications, as well as accelerate the disappearance of limb swelling, which is crucial for postoperative recovery.

[0032] 3) In addition, the second elastic fiber fabric layer of the present invention is provided with a pulse sensor at the corresponding position of the dorsalis pedis artery or the posterior tibial artery at the distal end of the tibia. By monitoring the fluctuation of the distal blood vessels, this function has important clinical significance for evaluating whether the blood vessels are damaged during surgery or whether there are complications of limb ischemia caused by excessive pressure. If the fluctuation of the distal blood vessels disappears, it may indicate the need for surgical intervention, thereby avoiding potential complications in time. Through these innovative designs, the present invention provides a safer and more effective solution in the field of postoperative fixation.

[0033] 4) The present invention innovatively combines a pressure sensor with a convenient suit structure to provide a new postoperative fixation solution. Through the built-in pressure sensor, the present invention can accurately monitor and adjust the pressure applied to the wound to ensure that it is neither too large to cause skin necrosis or compartment syndrome, nor too low to affect the effect of pressurized limbs. Traditional pressure bandaging methods require the addition of cotton pads and cumbersome bandaging, while the present invention only requires a simple application and pressurization, which greatly simplifies the use process. This convenience not only improves the efficiency of use and reduces the difficulty of operation for medical staff, but also reduces the discomfort and trauma of patients.

[0034] 5) The present invention uses a built-in pressure sensor and wireless signal transceiver to allow doctors and patients to monitor the pressure status of the legs in real time, ensuring the safety and effectiveness of treatment. At the same time, the pressure sensor can communicate with the computer terminal of the nurse station to facilitate real-time monitoring and timely calling of doctors by nurses. In addition, the design of the one-way valve and hand-pinch inflation pump simplifies the operation process, allowing users to easily adjust the pressure to meet personalized treatment needs.

[0035] 6) The gap-type cavity of the silicone or rubber material in the present invention provides good cushioning and support, while the integration of the pulse sensor provides additional data support for monitoring blood flow. The diverse selection of fabric layers and the Velcro-designed gel pad further improve the product's flexibility and user-friendliness, ensuring optimal fixation and protection at different recovery stages. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic structural diagram of the postoperative bone fixation device used on the leg according to the present invention.

[0037] In the figure:

[0038] Flexible pressurizable body-1

[0039] Foot fixing area-2

[0040] Knee fixed area-3

[0041] First elastic fiber fabric layer - 11

[0042] Second spandex fabric layer - 12

[0043] Pressurized sandwich-13

[0044] Gel pad-5

[0045] Valve-8

[0046] Squeeze type air pump-9

[0047] Third spandex fabric layer - 4

[0048] Fourth fabric layer-6

[0049] Pressure Sensor-7 DETAILED DESCRIPTION

[0050] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. Component models, material names, connection structures, control methods, algorithms and other features not clearly described in this technical solution are all considered to be common technical features disclosed in the prior art.

[0051] Example 1

[0052] This embodiment provides a postoperative bone fixation device for the leg, comprising a flexible pressurizable body 1 sleeved on the leg and a foot fixation area 2 and a knee fixation area 3 provided at both ends of the flexible pressurizable body. Figure 1 .

[0053] The flexible pressurizable main body 1 comprises 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 contacts the user's calf. In terms of the adaptability of the multi-layer elastic fabric, through the combination of the first elastic fiber fabric layer and the second elastic fiber fabric layer, the present invention can closely fit the user's leg shape, provide necessary support and fixation, and maintain comfort.

[0054] 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 foot fixing area 2 is sleeved on the ankle and / or the sole. The design of the foot fixing area ensures the comprehensive fixation of the ankle and / or the sole, and enhances the overall stability and treatment effect.

[0055] The pressurized interlayer 13 is provided with an air valve 8 for inflation. With the design of the pressurized interlayer and the air valve, the user can apply different degrees of pressure to the leg as needed. This pressure regulation helps reduce swelling and provides support for postoperative recovery.

[0056] A gel pad 5 is detachably adhered to the inner side of the second elastic fiber fabric layer 12 , and the gel pad 5 is used for pressing and protecting wounds on the legs.

[0057] The gel pad 5 is also arranged on the inner side of the second elastic fiber fabric layer 12: at positions corresponding to the bony protrusions at the proximal and distal ends of the fibula, and at positions corresponding to the bony protrusions at the patella.

[0058] One side of the gel pad 5 is a sticky surface and the other side is a gel layer. The design of the gel pad provides protection for leg wounds, reduces pain and swelling through press-type protection, and promotes wound healing. The Velcro design of the gel pad allows the user to adjust its position by himself.

[0059] At least two pressure sensors 7 are detachably adhered to the second elastic fiber fabric, and the pressure sensors 7 are used to obtain the pressure between the user's legs and the inner wall of the pressurizable body 1; the pressure sensors 7 are matched and connected with a wireless signal transceiver, and the wireless signal transceiver is connected to an external computer terminal for communication. The built-in pressure sensor can monitor and record the pressure applied to the legs in real time, and transmit the data to the external computer terminal through the wireless signal transceiver to achieve remote monitoring. This not only improves the safety of treatment, but also provides important treatment feedback for doctors.

[0060] A one-way valve is provided in the valve 8. The one-way valve in the valve ensures that gas can only enter but not escape, keeps the pressure in the fixture stable, and avoids the reduction of the treatment effect due to insufficient pressure. The valve 8 can be deflated by pressing, and the principle is the same as that of a tire valve.

[0061] The pressure range of the pressurizable interlayer is 10 to 60 mmHg. The pressurizable interlayer 13 is a silicone or rubber material with a gap-type cavity in the middle.

[0062] A fixed socket is provided on the first elastic fiber fabric layer 11, and one end of the hand-kneading air pump 9 is inserted into the fixed socket. The hand-kneading air pump 9 is detachably inserted on the first elastic fiber fabric layer 11, and can be connected to the valve 8 for use after being removed. The design of the hand-kneading air pump simplifies the inflation process, allowing users to easily adjust the pressure to adapt to different treatment stages and personal needs. The hand-kneading air pump 9 adopts an existing product well known to those skilled in the art, and will not be described in detail here.

[0063] The second elastic fiber fabric layer 12 is provided with a pulse sensor at a position corresponding to the anterior tibial artery or the posterior tibial artery at the distal end of the tibia. The pulse sensor is connected to the wireless signal transceiver for communication. The pulse sensor provided at a position corresponding to the anterior tibial artery or the posterior tibial artery at the distal end of the tibia can monitor blood flow and provide doctors with important information about the patient's recovery process.

[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 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 by sutures. 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 sutures.

[0065] The above description of the embodiments is to facilitate the understanding and use of the invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. A postoperative bone fixation device for the leg, characterized in that: It comprises a flexible pressurizable main body (1) which is sleeved on the leg, and a foot fixing area (2) and a knee fixing area (3) which are arranged at two ends of the flexible pressurizable main body; The flexible pressurizable main body (1) comprises a first elastic fiber fabric layer (11), a second elastic fiber fabric layer (12) arranged inside the first elastic fiber fabric layer (11), and a pressurizable interlayer (13) arranged between the first elastic fiber fabric layer (11) and the second elastic fiber fabric layer (12), wherein the second elastic fiber fabric layer (12) contacts the user's calf. The foot fixing area (2) and the knee fixing area (3) respectively comprise a third elastic fiber fabric layer (4) and a fourth fabric layer (6), and 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 pressurizable interlayer (13) is provided with an air valve (8) for inflation; The inner side of the second elastic fiber fabric layer (12) is detachably provided with a gel pad (5), and the gel pad (5) is arranged at the position of the postoperative wound on the leg, and the gel pad (5) is used for uniform pressing protection of the postoperative wound on the leg.

2. A postoperative bone fixation device for the leg according to claim 1, characterized in that: At least two pressure sensors (7) are detachably adhered to the second elastic fiber fabric, and the pressure sensors (7) are used to obtain the pressure between the user's legs and the inner wall of the pressurizable body (1); The pressure sensor (7) is matched and connected with a wireless signal transceiver, and the wireless signal transceiver is communicatively connected with an external computer terminal.

3. A postoperative bone fixation device for the leg according to claim 1, characterized in that: One side of the gel pad (5) is a sticky surface, and the other side is a gel layer; The gel layer is one of a highly absorbent resin hydrogel, a polyacrylic acid hydrogel or a polyacrylamide hydrogel; The sticky surface is the bristle surface with hooks of Velcro.

4. A postoperative bone fixation device for the leg according to claim 3, characterized in that: The gel pad (5) is also arranged on the inner side of the second elastic fiber fabric layer (12): at positions corresponding to the bony protrusions at the proximal and distal ends of the fibula, and at positions corresponding to the bony protrusions at the patella.

5. A postoperative bone fixation device for the leg according to claim 1, characterized in that: A one-way valve is arranged in the air valve (8).

6. A postoperative bone fixation device for the leg according to claim 1, characterized in that: The pressurizable interlayer (13) is a silica gel 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: The first elastic fiber fabric layer (11) is provided with a hand-kneading air pump (9).

8. A postoperative bone fixation device for the leg according to claim 1, characterized in that: The second elastic fiber fabric layer (12) is provided with a pulse sensor at a position corresponding to the dorsalis pedis artery or the 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 mounted on the ankle and / or the sole of the foot; The knee fixing area (3) is sleeved 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.

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