Postoperative single-leg special body position anti-escape braking pad

Abstract

This utility model discloses a postoperative single-leg positioning and immobilization pad, comprising a main body, an outer cover, and memory foam inserted inside the outer cover. The outer cover is fixedly connected to a first fixation component for fixing the thigh and a second fixation component for fixing the lower leg. The main body has a thigh limiting area and a lower leg support area fixedly connected to the thigh fiber area. The thigh limiting area includes two inflatable strips embedded on the left and right sides of the memory foam, respectively. Each inflatable strip is vertically positioned and expands radially after inflation to reduce the distance between the two inflatable strips. At the same time, the inward-facing sides of each inflatable strip are bent into a smooth, wrapping arc surface with a curvature radius of 15-25cm. The lower leg support area has an independent inflation chamber at its end. After the independent inflation chamber is inflated, the support surface of the lower leg support area forms a support slope at a 15-degree angle to the horizontal plane. This design breaks through the size limitations of traditional restraint straps, dynamically adjusts to fit different leg circumferences, and solves the problem of uneven pressure in the past.

Description

Technical Field

[0001] This utility model relates to the field of medical supplies technology, and in particular to a postoperative single-leg positioning and anti-escape braking pad. Background Technology

[0002] Currently, in clinical practice, single-leg immobilization using restraint straps is commonly used for patients after femoral artery puncture. Clinical studies have confirmed that the rate of bleeding at the puncture site due to restraint failure within 24 hours post-procedure is as high as 18% in obese patients, far exceeding the 7% rate in ordinary patients. For obese, agitated individuals with poor restraint tolerance, traditional immobilization pads are typically used to fix the affected limb during the critical 0-24 hour post-procedure immobilization period.

[0003] However, existing braking pads have significant drawbacks: First, they have poor body fit, the restraint straps cannot be adjusted in size, and the leg circumference of obese patients is unevenly compressed, resulting in excessive local pressure and violating medical pressure safety standards; Second, they have a high risk of complications, as the forced supine position causes back pain and pressure sores in the sacrum and coccyx, and the restraint on the healthy side exacerbates nerve compression damage.

[0004] Therefore, traditional brake pads do not have a dynamic adjustment structure and zoned pressure control system designed for the needs of high-risk groups, and urgently need improvement. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a postoperative single-leg positioning and anti-escape braking pad, which solves the problem of uneven pressure in the past.

[0006] To address the aforementioned technical problems, this utility model discloses a postoperative single-leg positioning and anti-extrication braking pad, comprising a pad body, an outer cover, and memory foam inserted inside the outer cover. The outer cover is fixedly connected to a first fixation component for fixing the thigh and a second fixation component for fixing the lower leg. The pad body has a thigh limiting area and a lower leg support area fixedly connected to the thigh fiber area. The thigh limiting area includes two inflatable baffles embedded on the left and right sides of the memory foam, respectively. Each inflatable baffle is vertically arranged, and after inflation, the inflatable baffles expand radially to reduce the distance between the two inflatable baffles. At the same time, the inward-facing sides of each inflatable baffle are bent into a smooth wrapping arc surface with a curvature radius of 15~25cm. The end of the lower leg support area has an independent inflation chamber. After the independent inflation chamber is inflated, the support surface of the lower leg support area forms a support slope with an angle of 15 degrees to the horizontal plane. The wrapping arc surface constrains the thigh external rotation angle to ≤8 degrees and the lateral displacement to ≤2cm. The inflatable retainers expand by inflating, compressing the memory foam and allowing for adjustable spacing between the two retainers. This overcomes the fixed size limitations of traditional restraint straps, dynamically adapting to different leg circumferences and accommodating both obese and slender patients. Furthermore, the inflated retainers create an ergonomically designed, curved surface (radius of curvature 15-25cm) with uniform pressure distribution. Actual measured local pressure is ≤32mmHg, reducing the bleeding rate at the puncture site in obese patients from 18% to 5.3%, thus resolving the previous problem of uneven pressure.

[0007] The outer bottom of the jacket is fixedly fitted with an anti-slip silicone pad.

[0008] The first fixing component is an elastic band with built-in memory elastic cotton. One end of the elastic band is fixedly connected to the left side of the jacket, and the other end is fixedly connected to the right side of the jacket.

[0009] The second fixing component is an elastic band with built-in memory elastic cotton. One end of the elastic band is fixedly connected to the left side of the jacket, and the other end is fixedly connected to the right side of the jacket.

[0010] The second fixing component is a fiber cloth tape with built-in memory elastic cotton. One end of the fiber cloth tape is fixed to the outer cover, and the other end is fixed with hook and loop fasteners. The outer surface of the fiber cloth tape is a fuzzy layer that can be bonded to the hook and loop fasteners.

[0011] The outer garment is made of antibacterial fabric.

[0012] The first fixing component is a fiber cloth tape with built-in memory elastic cotton. One end of the fiber cloth tape is fixed to the outer cover, and the other end is fixed with hook and loop fasteners. The outer surface of the fiber cloth tape is a fuzzy layer that can be bonded to the hook and loop fasteners.

[0013] The main body of the pad is rectangular, with a length of 100cm and a width of 60cm.

[0014] Compared with the prior art, the embodiments of this utility model have the following beneficial effects: (1) The inflatable baffle expands by inflating, forcing the memory foam to compress, thereby adjusting the distance between the two inflatable baffles. This breaks through the fixed size limitation of traditional restraint belts, dynamically adjusting to fit different leg circumferences, and is suitable for obese or thin patients. In addition, the wrapping arc surface (curvature radius 15-25cm) formed after the baffle is inflated conforms to ergonomics, and the pressure distribution is uniform. The measured local pressure is ≤32mmHg, and the bleeding rate at the puncture point of obese patients has decreased from 18% to 5.3%, solving the problem of uneven compression in the past.

[0015] (2) The smooth wrapping arc surface and the vertical structure of the baffle strip make the pad body form a three-dimensional wrapping structure, which restricts the external rotation of the thigh (≤8 degrees) and lateral displacement (≤2cm), meeting the immobilization requirements of the golden 24 hours after intervention. The inflatable baffle strip is lined with memory foam, which not only ensures the restraint strength but also avoids rigid friction.

[0016] (3) The 15-degree elevation design of the lower leg support area, through the independent air chamber, achieves precise angle control, promotes venous return speed, and reduces the incidence of deep vein thrombosis from 9.2% to 2.1% compared with the supine position.

[0017] (4) The thigh limiting area and the lower leg support area are structurally coupled to simultaneously solve the problems of braking stability and comfort, and reduce the frequency of nursing adjustments.

[0018] (5) By setting up a memory foam base and an anti-breakage structure composed of a first fixing component and a second fixing component, the memory foam base absorbs more than 60% of the impact force of body position changes, reducing the incidence of breakage events. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. 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.

[0020] Figure 1 This is a schematic diagram of the brake pad structure in this utility model; Figure 2 This is a structural schematic diagram of the brake pad from another perspective in this utility model. Figure 3 for Figure 2 Enlarged view of section AA; Figure 4 for Figure 2 A magnified view of section BB in the middle. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and 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.

[0022] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, apparatus, product, or end that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or ends.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] This utility model discloses a specific implementation of a postoperative single-leg positioning anti-escape braking pad. Please see [link / description]. Figures 1 to 4 The system includes a main body, which comprises an outer cover 11 and memory foam 3 embedded inside the outer cover 11. Preferably, the outer cover 11 is made of antibacterial fabric, providing antibacterial and reusable properties. An anti-slip silicone pad 4 is fixed to the bottom surface of the outer cover 11 to prevent slippage and shifting.

[0025] In this embodiment, the main body of the pad is rectangular, with a length of 100cm and a width of 60cm, which can accommodate the leg length needs of most patients.

[0026] As an improvement, the main body of the pad has a thigh limiting area 12 and a calf support area 13, which are fixedly connected. This can be understood as the thigh limiting area 12 and the calf support area 13 being two areas divided by the outer cover 11. The thigh limiting area 12 includes two symmetrically arranged inflatable baffles 31 vertically embedded within the memory foam 3. Optionally, two slots are cut on the left and right sides of the upper half of the memory foam 3, and parts of the inflatable baffles 31 are embedded into the slots and fixed with medical adhesive. After inflation, the inflatable baffles 31 can expand radially, adjusting the distance between the two inflatable baffles 31 to accommodate patients with different leg circumferences. In other embodiments, the two inflatable baffles 31 can be configured as a combination of solid baffles and multi-directional telescopic (lateral and vertical) inflatable bladders. The expansion of these bladders pushes the solid baffles to move, thereby compressing the memory foam 3 to adjust the distance between the two solid baffles. However, an independent baffle expansion scheme is preferred.

[0027] After inflation, the inflatable baffle 31 extends to a certain extent in the vertical direction, so that the inward-facing sides of each inflatable baffle 31 form a smooth wrapping arc surface with a curvature radius of 15cm to 25cm, ensuring that the thigh will not be damaged by excessive friction during the braking process, while limiting the external rotation angle of the thigh to no more than 8 degrees and the lateral displacement to no more than 2cm, effectively preventing the risk of bleeding at the puncture point caused by excessive movement of the affected limb.

[0028] In this embodiment, the lower leg support area 13 has an independent inflation chamber 32 located inside the outer sleeve 11 at its end. When inflated, the independent inflation chamber 32 creates a supporting slope at a 15-degree angle to the horizontal plane on the working surface of the lower leg support area 13, promoting venous return in the lower limbs and reducing the risk of deep vein thrombosis. It should be noted that the independent inflation chamber 32 can be an air bladder filled inside the outer sleeve 11. The shape and structure of the air bladder can be selectively configured according to actual needs. Clinical studies have shown that this design can significantly reduce the bleeding rate at the puncture site within 24 hours post-surgery in obese patients and reduce back pain and pressure sores in the sacrococcygeal region caused by forced supine positioning.

[0029] It should be noted that the postoperative single-leg positioning anti-escape braking pad also includes an inflation device for inflating each inflatable baffle 31 and independent inflation chamber 32. Each inflatable baffle 31 and independent inflation chamber 32 is provided with at least two inflation or deflation ports, which can be equipped with corresponding one-way valves to avoid air leakage. The cross-sectional shape of the inflatable baffle 31 is approximately L-shaped, while the independent inflation chamber 32 is generally triangular.

[0030] In this embodiment, the pad body is further provided with a first fixing component 21 and a second fixing component 22, which are used to fix the thigh and the lower leg, respectively. The first fixing component 21 can be an elastic band or a fiber cloth strip with built-in memory elastic cotton. The two ends of the elastic band are fixed to the left and right sides of the outer cover 11, respectively, and the elasticity can be used to adapt to various sizes; or, a fiber cloth strip with hook and loop fasteners can be used for adjustable fixation. The outer surface of the fiber cloth strip has a textured surface layer that is bonded to the hook and loop fasteners. The second fixing component 22 can also be an elastic band or a fiber cloth strip with built-in memory elastic surface, which can ensure stable immobilization of the affected limb and reduce the occurrence of unplanned escape events.

[0031] In this embodiment, the inflatable retainer 31 of the postoperative single-leg positioning anti-extrication braking pad expands with air, forcing the memory foam 3 to compress, thus adjusting the distance between the two inflatable retainers 31. This breaks through the fixed size limitations of traditional restraint straps, dynamically adjusting to fit different leg circumferences, suitable for obese or thin patients. In addition, the wrapping arc surface (curvature radius 15-25cm) formed after the retainer is inflated is ergonomic, with uniform pressure distribution. The measured local pressure is ≤32mmHg, and the bleeding rate at the puncture point in obese patients has decreased from 18% to 5.3%, solving the problem of uneven pressure in the past. The smooth wrapping arc surface and the vertical structure of the retainer create a three-dimensional covering structure for the pad body, limiting external rotation of the thigh (≤8 degrees) and lateral displacement (≤2cm), meeting the immobilization requirements of the golden 24 hours after interventional surgery. The memory foam 3 lining the inflatable retainer 31 ensures restraint strength while avoiding rigid friction. The 1315-degree elevation design of the calf support area, achieved through independent air chamber 32, allows for precise angle control, promoting venous return and reducing the incidence of deep vein thrombosis from 9.2% to 2.1% compared to the supine position. The thigh restraint area 12 and the calf support area 13 are structurally coupled, simultaneously addressing immobilization stability and comfort, reducing the frequency of nursing adjustments. By incorporating a memory foam base 3 and an anti-extraction structure composed of a first fixation component 21 and a second fixation component 22, the memory foam base 3 absorbs over 60% of the impact force from positional changes, reducing the incidence of expulsion events.

[0032] This braking pad is particularly suitable for the critical 0-24 hour immobilization period after femoral artery puncture, offering significant clinical advantages, especially for obese, agitated, or patients with poor tolerance to restraint. Its simple structure and ease of use make it widely applicable in medical scenarios requiring single-leg immobilization, such as neurointerventions and cardiovascular interventions.

[0033] Finally, it should be noted that the postoperative single-leg positioning anti-escape braking pad disclosed in this utility model embodiment is only a preferred embodiment of this utility model and is only used to illustrate the technical solution of this utility model, not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A postoperative single-leg positioning and anti-escape pad, characterized in that, The pad body includes an outer cover and memory foam inserted inside the outer cover. The outer cover is fixedly connected to a first fixing component for fixing the thigh and a second fixing component for fixing the calf. The main body of the pad is provided with a thigh limiting area and a calf support area that is fixedly connected to the thigh fiber area; The thigh limiting area includes two inflatable baffles embedded on the left and right sides of the memory foam respectively. Each inflatable baffle is vertically arranged. After inflation, the inflatable baffle expands radially to reduce the distance between the two inflatable baffles. At the same time, the inward side of each inflatable baffle is bent into a smooth wrapping arc surface with a curvature radius of 15~25cm. The lower leg support area is provided with an independent air chamber at its end. After the independent air chamber is inflated, the support surface of the lower leg support area forms a support slope with an angle of 15 degrees to the horizontal plane. The wrapped arc surface constrains the external rotation angle of the thigh to ≤8 degrees and the lateral displacement to ≤2cm.

2. The postoperative single-leg positioning and anti-escape pad according to claim 1, characterized in that, The outer bottom surface of the jacket is fixedly fitted with an anti-slip silicone pad.

3. The postoperative single-leg positioning and anti-escape immobilization pad according to claim 1, characterized in that, The first fixing component is an elastic band with built-in memory elastic cotton. One end of the elastic band is fixedly connected to the left side of the outer jacket, and the other end is fixedly connected to the right side of the outer jacket.

4. The postoperative single-leg positioning and anti-escape immobilization pad according to claim 3, characterized in that, The second fixing component is an elastic band with built-in memory elastic cotton. One end of the elastic band is fixedly connected to the left side of the outer jacket, and the other end is fixedly connected to the right side of the outer jacket.

5. The postoperative single-leg positioning and anti-escape immobilization pad according to claim 3, characterized in that, The second fixing component is a fiber cloth tape with built-in memory elastic cotton. One end of the fiber cloth tape is fixed to the outer cover, and the other end is fixedly installed with hook and loop fasteners. The outer surface of the fiber cloth tape is a fuzzy layer that can be bonded to the hook and loop fasteners.

6. The postoperative single-leg positioning and anti-escape pad according to claim 1, characterized in that, The outer garment is made of antibacterial fabric.

7. The postoperative single-leg positioning and anti-escape immobilization pad according to claim 1, characterized in that, The first fixing component is a fiber cloth tape with built-in memory elastic cotton. One end of the fiber cloth tape is fixed to the outer cover, and the other end is fixedly installed with hook and loop fasteners. The outer surface of the fiber cloth tape is a fuzzy layer that can be bonded to the hook and loop fasteners.

8. The postoperative single-leg positioning and anti-escape immobilization pad according to claim 1, characterized in that, The main body of the pad is rectangular, with a length of 100cm and a width of 60cm.

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