Anti-pressure sore foot movement brace
By designing a sliding L-shaped support structure and a foot brace made of memory foam board, the problem of traditional pressure ulcer prevention measures being unable to dynamically adjust support force and observe skin changes in real time has been solved, thus achieving the effect of preventing toe drop and reducing the risk of pressure ulcers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING TONGREN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional pressure ulcer prevention measures cannot monitor skin changes in real time, which may delay the early identification of pressure ulcers. They also cannot dynamically adjust support, affecting the recovery effect. Furthermore, traditional methods may cause skin tears or increase the risk of inflammation.
Design a foot orthosis to prevent pressure sores, including a guide strip, a first fixing pad and a second fixing pad. The support pad can swing left and right, and the first fixing pad and the second fixing pad can be slidably connected to form an L-shaped support structure to support the foot and allow the foot to move left and right. Memory foam and foam board are used to reduce friction and distribute pressure.
It enables real-time adjustment of support position to prevent continuous local pressure, avoid toe drop, reduce the risk of pressure sores, provide elastic support and breathability, adapt to different body position changes, and reduce the risk of skin damage.
Smart Images
Figure CN224523489U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of medical assistive device technology, and in particular to a foot orthosis for preventing pressure sores. Background Technology
[0002] Traditional pressure ulcer dressings, such as hydrocolloid dressings and foam dressings, are typically applied directly to bony prominences like the heel and sacrum to prevent pressure ulcers by reducing local pressure and friction. However, this fixed application method has several drawbacks. For example, observation is difficult, requiring regular checkups of the skin (e.g., redness, swelling, and breakage). Repeated application and removal of the dressing can damage the patient's epidermis and even cause iatrogenic skin lacerations. The adhesive components of some dressings may irritate the skin, increasing the risk of allergies or inflammation. Furthermore, healthcare professionals cannot monitor skin changes in real time while the dressing is on, potentially delaying the identification of early pressure ulcers.
[0003] Secondly, for pressure-prone areas such as the heel, traditional protection often involves wrapping with soft pads, cotton rings, or thick gauze. While this can distribute pressure, it has the following problems: simple wrapping cannot provide support for ankle dorsiflexion. Patients who are bedridden for a long time are prone to heel drop due to gravity, which can lead to ankle joint contracture or Achilles tendon shortening, affecting walking function after rehabilitation. In addition, thick wrapping can only passively distribute pressure and cannot dynamically adjust the support force according to changes in body position. Furthermore, multiple layers of wrapping may hinder sweat evaporation, increase the risk of skin maceration, and accelerate the development of pressure sores.
[0004] Based on the above problems, medical staff have designed various foot care devices to prevent pressure sores according to clinical needs. For example, patent CN222942578U discloses a foot protector for preventing pressure sores. This foot protector includes a support base with a placement cavity, a strap connected to the support base, and a bottom cushioning pad located at the bottom of the support base. The bottom cushioning pad has an adjustment groove. An ankle support device that can move up and down is provided in the adjustment groove. The ankle support device includes a support plate and an ankle pad located on the support plate. The ankle pad is made of the same material as the bottom cushioning pad. The two ends of the support plate extend into adjustment windows provided on the side walls of the support base. A magnetic levitation component for adjusting the height of the support plate is provided at the bottom of the adjustment window. However, this protector cannot enable the foot to move left and right to maintain its functional position. For example, patent CN217066867U discloses a foot care device for preventing pressure sores, including two single-foot pillows connected by a multi-stage telescopic rod. A dust cover is fixedly installed on the side wall of one of the single-foot pillows, serving to enclose the two pillows together. Each single-foot pillow includes a base, a rolling structure, a footrest, and a nursing pad. The rolling structure is located on the bottom surface of the base, the nursing pad is located in a groove on the footrest, and the footrest is rotatably mounted on the upper surface of the base. While this device allows for slight movement and relaxation of the patient's legs and feet in various directions, it cannot prevent the patient's toes from drooping. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a foot orthosis for preventing pressure sores, which allows the patient's foot to move left and right to maintain its functional position while keeping the toes from drooping.
[0006] To achieve the above objectives, this utility model provides a foot orthosis for preventing pressure sores, including a guide strip and a first fixing pad and a second fixing pad that are slidably connected in the guide strip. The first fixing pad and the second fixing pad can slide synchronously along the guide strip, and the spatial distribution of the first fixing pad and the second fixing pad in the guide strip is perpendicular to each other. A support pad for fixing the foot is movably installed in the first fixing pad, and the support pad can swing left and right in the first fixing pad.
[0007] Furthermore, a first slide rail and a second slide rail are respectively provided on adjacent sides along the length of the guide strip.
[0008] Furthermore, the first fixing pad is provided with a first slider, and is slidably connected to the first slide rail via the first slider.
[0009] Furthermore, the second fixing pad is provided with a second slider, and is slidably connected to the second slide rail via the second slider.
[0010] Furthermore, the first fixing pad also includes a first fixing plate, a second fixing plate, and an arc-shaped track, which is mounted on the second fixing plate and located between the first fixing plate and the second fixing plate.
[0011] Furthermore, an arc-shaped groove is provided on the first fixed plate.
[0012] Furthermore, the first fixed pad also includes a slider, and the support pad is slidably connected to the arc-shaped track through the slider passing through the arc-shaped groove, and the support pad swings left and right along the arc-shaped track.
[0013] Furthermore, the second fixing pad is made of memory foam.
[0014] Furthermore, the support pad is made of foam board.
[0015] Furthermore, both the second fixing pad and the support pad are equipped with fixing straps.
[0016] The beneficial technical effects of this utility model are as follows:
[0017] The first and second fixing pads of this invention can slide synchronously along the guide strip, so that the brace can adjust its support position in real time according to the condition of the patient's foot, avoid continuous local pressure, and prevent pressure sores; and the spatial distribution of the first and second fixing pads is perpendicular to each other, which can form an L-shaped support structure, which can support the foot and prevent the toes from drooping, and also support the leg.
[0018] This invention, while keeping the patient's toes from drooping, allows the support pad to swing left and right, thus enabling the patient's foot to move left and right to maintain its functional position.
[0019] This invention uses a foam board support pad, which can reduce heel pressure and is easy to clean; a memory foam second fixing pad conforms to the curve of the leg, providing elastic support to reduce friction with the bed and prevent pressure sores. Attached Figure Description
[0020] The accompanying drawings, incorporated in and forming part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings:
[0021] Figure 1 This is a structural diagram of the foot mobility brace for preventing pressure sores in this application;
[0022] Figure 2 Exploded view of the foot orthosis for preventing pressure sores in this application;
[0023] Figure 3 This is a side view of the first fixing pad in this application.
[0024] Figure Labels
[0025] 1: First fixing pad; 11: First fixing plate; 12: Second fixing plate; 13: Support pad; 14: Arc-shaped slide groove; 15: First fixing belt; 16: First slider; 17: Arc-shaped track; 18: Fixing component; 19: Sliding component; 2: Guide strip; 21: First slide rail; 22: Second slide rail; 3: Second fixing pad; 31: Second slider; 32: Second fixing belt. Detailed Implementation
[0026] Unless otherwise defined, all technical and / or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should be understood that certain features of this invention (described in the context of separate embodiments for clarity) may also be provided in combination in a single embodiment. Conversely, multiple features of this invention (described in the context of a single embodiment for brevity) may also be provided separately or in any suitable combination or, where appropriate, in any other described embodiment of this invention. Certain features described in the context of various embodiments will not be considered essential features of those embodiments unless the embodiment is inoperable without those elements. The present invention is further illustrated below by specific examples; however, it should be noted that the specific process conditions and results described in the embodiments of this invention are for illustrative purposes only and should not be construed as limiting the scope of protection of this invention. All equivalent changes or modifications made in accordance with the spirit and essence of this invention should be covered within the scope of protection of this invention.
[0027] First, it should be noted that the foam board and memory foam used in this application are both commercially available materials and do not involve any improvement to the materials, thus meeting the requirements for protection of a utility model.
[0028] like Figure 1 and Figure 2 As shown, this utility model provides a foot orthosis to prevent pressure sores, including a guide strip 2 and a first fixing pad 1 and a second fixing pad 3 slidably connected in the guide strip 2. The first fixing pad 1 and the second fixing pad 3 can slide synchronously along the guide strip 2, and the spatial distribution of the first fixing pad 1 and the second fixing pad 3 in the guide strip 2 is perpendicular to each other. A support pad 13 for fixing the foot is movably installed in the first fixing pad 1, and the support pad 13 can swing left and right in the first fixing pad 1.
[0029] Furthermore, the first fixing pad 1 and the second fixing pad 3 of this application can slide synchronously along the guide strip 2, so that the brace can adjust its support position in real time according to the patient's foot condition, avoid continuous local pressure, and prevent pressure sores; and the first fixing pad 1 and the second fixing pad 3 are spatially perpendicular to each other, forming an L-shaped support structure, which can support the foot and prevent toes from drooping, and also support the leg.
[0030] Furthermore, the size of the pressure strip in this application can be set according to actual clinical needs, and no specific limitation is made here. In addition, when in use, the pressure strip is placed on the bed, and the contact surface between the pressure strip and the bed sheet can be equipped with an anti-slip structure, such as anti-slip texture, to stably support the first fixing pad 1.
[0031] Furthermore, in this application, a first slide rail 21 and a second slide rail 22 are respectively provided on adjacent sides along the length of the guide strip 2. The first slide rail 21 and the second slide rail 22 can be integrally formed with the guide strip 2, or the first slide rail 21 and the second slide rail 22 can be installed on the guide strip 2 by a fixed connection scheme such as welding.
[0032] Furthermore, the first fixing pad 1 of this application is provided with a first slider 16, and is slidably connected to the first slide rail 21 via the first slider 16. The second fixing pad 3 is provided with a second slider 31, and is slidably connected to the second slide rail 22 via the second slider 31. This application does not specifically limit the structure of the first slider 16 and the second slider 31, as long as they can be slidably connected. For example, the first slider 16 and the second slider 31 are designed as rolling elements, such as ball bearings, with low frictional resistance, allowing the patient to flexibly move left and right to maintain the functional position of their foot.
[0033] Furthermore, the first fixing pad 1 and the second fixing pad 3 of this application are detachably connected to the guide strip 2 to facilitate the replacement of the first fixing pad 1 and the second fixing pad 3 of different sizes, thereby adapting to the differences in foot size between children and adults.
[0034] Furthermore, such as Figure 2 and Figure 3 As shown, the first fixing pad 1 also includes a first fixing plate 11, a second fixing plate 12, and an arc-shaped track 17. The arc-shaped track 17 is mounted on the second fixing plate 12 via a fastener 18 and is located between the first fixing plate 11 and the second fixing plate 12. This application conceals the arc-shaped track 17 within the first fixing pad 1 to prevent accidental injury to the patient. The fastener 18 in this application can be multiple bolts.
[0035] Furthermore, such as Figure 2 and Figure 3 As shown, an arc-shaped groove 14 is provided on the first fixed plate 11, and the position and curvature of the arc-shaped groove 14 match those of the arc-shaped track 17.
[0036] Furthermore, the first fixed pad 1 also includes a slider 19, and the support pad 13 is slidably connected to the arc-shaped track 17 via the slider 19 through the arc-shaped groove 14. The support pad 13 swings left and right along the arc-shaped track 17. The slider in this application includes, but is not limited to, a sliding bearing. The support pad in this application swings left and right by external thrust.
[0037] Furthermore, the support pad 13 is also provided with a first fixing strap 15 for fixing the foot to the support pad 13. The second fixing pad 3 is also provided with a second fixing strap 32 for fixing the leg to the second fixing pad 3. The lengths of the first fixing strap 15 and the second fixing strap 32 are adjustable, and the first fixing strap 15 and the second fixing strap 32 can be made of buckles, elastic bandages, segmented Velcro, etc., to facilitate fixing according to the foot and leg sizes of different patients.
[0038] Furthermore, the second fixation pad 3 of this application is made of memory foam with a certain thickness. Placed on the bed, it supports the legs, and its structure is designed according to the curve of the human leg. This application utilizes the slow rebound properties of memory foam to adaptively mold to the patient's leg curve, evenly distributing leg pressure and avoiding concentrated pressure on bony prominences. Memory foam also has good breathability and antibacterial properties, reducing the risk of pressure sores. This application does not specifically limit the thickness of the memory foam; it is set according to clinical needs, such as a thickness ≥5cm, to enhance support and prevent blood circulation obstruction caused by leg sagging, making it particularly suitable for patients who are bedridden for extended periods or postoperatively.
[0039] Furthermore, the support pad 13 of this application is made of foam board, which is used to contact the sole of the foot, preventing the toes from drooping and ensuring that the foot and lower leg form a 90° angle. The first fixing pad 1 of this application can form a physical restraint, effectively preventing toe drop, and is suitable for patients who are bedridden for a long time or for postoperative rehabilitation, avoiding Achilles tendon contracture and plantar fascia shortening. In addition, this application uses foam board to evenly distribute the pressure on the sole of the foot, reducing the concentrated force on bony prominences such as the heel and metatarsal heads, and reducing the risk of pressure sores.
[0040] Furthermore, the first fixing plate 11 and the second fixing plate 12 of this application have a certain load-bearing capacity, and are preferably semi-circular in structure to accommodate the left and right swing of the support pad 13.
[0041] Furthermore, the method of using the pressure ulcer prevention foot brace of this application is as follows:
[0042] First, place the movable brace on the hospital bed, place the patient's lower leg on the second fixing pad 3, and make the patient's foot contact the support pad 13, with the toes naturally raised so that the foot and lower leg are in a 90° functional position to prevent the toes from drooping.
[0043] Then, according to the patient's positional needs, the positions of the first fixing pad 1 and the second fixing pad 3 on the guide strip 2 are adjusted by sliding. After adjustment, the patient's feet and legs are fixed by the first fixing strap 15 and the second fixing strap 32 respectively. The patient can move their feet and legs left and right according to their own needs.
[0044] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A foot orthosis for preventing pressure sores, characterized in that, It includes a guide strip (2) and a first fixing pad (1) and a second fixing pad (3) that are slidably connected in the guide strip (2). The first fixing pad (1) and the second fixing pad (3) can slide synchronously along the guide strip (2), and the spatial distribution of the first fixing pad (1) and the second fixing pad (3) in the guide strip (2) is perpendicular to each other. The first fixing pad (1) is movably fitted with a support pad (13) for fixing the feet, and the support pad (13) can swing left and right in the first fixing pad (1).
2. The foot orthosis for preventing pressure sores according to claim 1, characterized in that, The guide strip (2) has a first slide rail (21) and a second slide rail (22) respectively on its adjacent sides along its length.
3. The foot orthosis for preventing pressure sores according to claim 2, characterized in that, The first fixing pad (1) is provided with a first slider (16) and is slidably connected to the first slide rail (21) through the first slider (16).
4. The foot orthosis for preventing pressure sores according to claim 3, characterized in that, The second fixing pad (3) is provided with a second slider (31) and is slidably connected to the second slide rail (22) through the second slider (31).
5. The foot orthosis for preventing pressure sores according to claim 1, 2, 3 or 4, characterized in that, The first fixing pad (1) further includes a first fixing plate (11), a second fixing plate (12) and an arc track (17), the arc track (17) being installed on the second fixing plate (12) and located between the first fixing plate (11) and the second fixing plate (12).
6. The foot orthosis for preventing pressure sores according to claim 5, characterized in that, An arc-shaped groove (14) is provided on the first fixing plate (11).
7. The foot brace for preventing pressure sores according to claim 6, characterized in that, The first fixing pad (1) also includes a slider (19), and the support pad (13) is slidably connected to the arc-shaped track (17) through the slider (19) passing through the arc-shaped groove (14), and the support pad (13) swings left and right along the arc-shaped track (17).
8. The foot orthosis for preventing pressure sores according to claim 1, 2, 3 or 4, characterized in that, The material of the second fixing pad (3) is memory foam.
9. The foot orthosis for preventing pressure sores according to claim 8, characterized in that, The support pad (13) is made of foam board.
10. The foot orthosis for preventing pressure sores according to claim 9, characterized in that, Both the second fixing pad (3) and the support pad (13) are provided with fixing straps.