Lower extremity orthosis for preventing heel pressure injuries
The lower limb brace, with its double-layer cushioning structure and knob adjustment design, solves the problems of insufficient pressure relief, inconvenient cleaning, and poor fit, thereby improving pressure ulcer prevention, hygiene, and safety of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANCHENG DAFENG PEOPLES HOSPITAL
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-23
AI Technical Summary
Existing lower limb braces lack sufficient pressure relief and protection, easily leading to pressure injuries to the heel. They are also inconvenient to clean, posing hygiene risks, have poor adaptability, and are difficult to adjust, affecting their effectiveness and safety.
The heel support cushion with a double-layer cushioning structure and medical cotton pads, combined with a knob and screw adjustment mechanism, achieves efficient pressure reduction, convenient cleaning, and flexible fit.
It effectively distributes pressure on the heel, prevents pressure sores, maintains hygiene, adapts to patients of different body types, and ensures the stability and safety of the brace.
Smart Images
Figure CN224387684U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of lower limb braces technology, specifically a lower limb brace for preventing pressure injuries to the heel. Background Technology
[0002] Lower limb braces are devices used to assist in supporting, fixing, and protecting the lower limbs (including the hip, knee, ankle, calf, and foot). They are usually made of materials such as metal, plastic, and leather, and come in different shapes and functions. They can be customized according to the specific needs of the patient.
[0003] However, the following problems were found in the implementation of the relevant technologies:
[0004] Most existing lower limb braces lack sufficient pressure relief and protection. Many use a single-layer cushioning structure or rely solely on a rigid frame for fixation, making it difficult to effectively distribute pressure on the heel. Prolonged use can easily lead to local tissue ischemia and increase the risk of pressure ulcers. Furthermore, the cushioning components of most braces are fixedly connected to the main structure, making them impossible to disassemble and clean. Reuse of these braces can easily breed bacteria, posing hygiene risks and failing to meet the care needs of patients who are bedridden for extended periods or have limited lower limb mobility.
[0005] Furthermore, the adaptation and adjustment of most lower limb braces are relatively limited. Traditional braces are usually of fixed size or only offer a few adjustable levels, making it difficult to adapt to the lower limb sizes of patients with different body types. Although some products have adjustment functions, their complex structure and cumbersome operation make it difficult for medical staff or patients to complete the adjustment independently. Moreover, problems such as structural loosening and displacement are prone to occur during the adjustment process, affecting the effectiveness and safety of use. Utility Model Content
[0006] To address the problems mentioned in the background section, this invention provides a lower limb orthosis for preventing pressure injuries to the heel, offering advantages such as efficient pressure relief, convenient cleaning, and flexible fit. This invention solves the problems of insufficient pressure relief and easy pressure sores associated with existing orthosis through a double-layer cushioning structure of a heel support pad and a medical cotton gasket; it also solves the problem of difficult cleaning and hygiene concerns associated with the cushioning components through the detachable design of the medical cotton gasket; and it overcomes the issues of poor adaptability and inconvenient adjustment found in traditional orthosis through the adjustment mechanism of knobs and screws.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a lower limb brace for preventing pressure injuries to the heel, comprising a front support arc plate, a rear support arc plate on one side of the front support arc plate, a base plate fixedly mounted on one side of the rear support arc plate, a guard fixedly mounted on the upper inner side of the base plate, a medical cotton pad detachably mounted inside the rear support arc plate, and a heel support pad on the lower inner side of the base plate, wherein the heel support pad is located on the upper side of one side of the medical cotton pad.
[0008] Preferably, a fixed block is fixedly provided on one side of the rear support arc plate, a movable block is fixedly provided on one side of the front support arc plate, a threaded rod is rotatably provided on one side of the fixed block, and one end of the threaded rod is threaded through the movable block and fixedly provided with a knob.
[0009] Preferably, the medical cotton gasket is symmetrically fixed with mounting pads on both sides, the rear support arc plate is symmetrically fixed with side blocks on both sides, the upper surface of the side blocks is fixed with a column, the upper end of the column is fixed with a conical block, the upper surface of the mounting pad is provided with a slot, the column is inserted into the corresponding slot, and the lower surface of the conical block is in movable contact with the corresponding mounting pad.
[0010] Preferably, a circular groove is provided on the lower inner side of the base plate, and the heel support pad is inserted into the circular groove.
[0011] Preferably, the outer surfaces of the front support arc plate, the rear support arc plate, and the base plate are symmetrically fixed with fixing straps, and the inner side of each fixing strap is provided with a medical patch.
[0012] Preferably, a plug plate is fixedly provided on one side of the fixed block, and the plug plate moves through the movable block.
[0013] Preferably, a positioning plate is fixedly provided on one side of the rear support arc plate, and a positioning block is fixedly provided on one side of the front support arc plate, with the positioning plate movably passing through the positioning block.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. This utility model forms a double-layer buffer structure by using a heel support pad and a medical cotton pad to evenly distribute the pressure of the heel to the contact surface of the brace, avoiding ischemic damage (such as pressure sores) caused by long-term local pressure. It is especially suitable for patients who are bedridden for a long time or whose lower limb movement is limited. In addition, the medical cotton pad is detachably connected to the column and conical block of the rear support arc plate through the slot for installing the pad, which is convenient for regular replacement and cleaning to maintain hygiene.
[0016] 2. This utility model uses a rotating knob to drive the screw rod to rotate. Since the screw rod is threadedly connected to the moving block, the front support arc plate can move relative to the rear support arc plate, thereby adjusting the overall width of the brace to adapt to different patients' lower limb sizes. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 Exploded view of the installation structure of the medical cotton gasket of this utility model;
[0019] Figure 3 This is an exploded view of the relevant structure of the base plate of this utility model;
[0020] Figure 4This is an exploded view of the connection structure between the front and rear support arc plates of this utility model.
[0021] In the diagram: 1. Front support arc plate; 2. Rear support arc plate; 3. Base plate; 31. Enclosure; 4. Fixing strap; 41. Medical adhesive tape; 5. Medical cotton gasket; 51. Mounting pad; 52. Side block; 53. Column; 54. Conical locking block; 55. Slot; 6. Heel support pad; 61. Circular groove; 7. Fixing block; 71. Moving block; 72. Threaded post; 73. Knob; 74. Insert plate; 75. Positioning block; 76. Positioning plate. Detailed Implementation
[0022] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] like Figures 1 to 4 As shown, this utility model provides a lower limb brace for preventing pressure injuries to the heel, including a front support arc plate 1, a rear support arc plate 2 on one side of the front support arc plate 1, a base plate 3 fixedly mounted on one side of the rear support arc plate 2, a retaining wall 31 fixedly mounted on the upper inner side of the base plate 3, a medical cotton pad 5 detachably mounted inside the rear support arc plate 2, and a heel support pad 6 mounted on the lower inner side of the base plate 3, with the heel support pad 6 located on the upper side of one side of the medical cotton pad 5. The front support arc plate 1 and the rear support arc plate 2 form a wrapping frame for both sides of the lower limb, providing basic support for the whole; the base plate 3 and the retaining wall 31 cooperate to form a stable support surface at the bottom, preventing the foot from slipping; the medical cotton pad 5 and the heel support pad 6 disperse the pressure on the lower limb and heel through soft materials, reducing local pressure and preventing pressure injuries; the detachable medical cotton pad 5 is easy to replace and clean, maintaining hygiene.
[0024] Specifically, a fixed block 7 is fixedly provided on one side of the rear support arc plate 2, and a movable block 71 is fixedly provided on one side of the front support arc plate 1. A threaded post 72 is rotatably provided on one side of the fixed block 7, and one end of the threaded post 72 is threaded through the movable block 71 and fixedly provided with a knob 73. Rotating the knob 73 drives the threaded post 72 to rotate. Because the threaded post 72 is threadedly connected to the movable block 71, the movable block 71 moves along the threaded post 72, thereby adjusting the distance between the front support arc plate 1 and the rear support arc plate 2 to adapt to the lower limb size of different patients and realize personalized adjustment of the brace width.
[0025] Furthermore, the medical cotton gasket 5 is symmetrically fixed with mounting pads 51 on both sides, and the rear support arc plate 2 is symmetrically fixed with side blocks 52 on both sides. The upper surface of the side blocks 52 is fixed with a column 53, and the upper end of the column 53 is fixed with a conical locking block 54. The upper surface of the mounting pad 51 is provided with a slot 55, and the column 53 is inserted into the corresponding slot 55. The lower surface of the conical locking block 54 is movably fitted with the corresponding mounting pad 51. The mounting pad 51 slot 55 of the medical cotton gasket 5 is aligned with the column 53 of the rear support arc plate 2 and inserted. The wedge-shaped structure of the conical locking block 54 is used to lock it into the mounting pad 51 and generate a fastening force, so as to realize the quick installation and stable fixation of the medical cotton gasket 5. When disassembling, it can be separated by simply pulling it upward, which is convenient for regular replacement and cleaning.
[0026] Furthermore, a circular groove 61 is provided on the lower inner side of the base plate 3, and the heel support pad 6 is inserted into the circular groove 61. The heel support pad 6 is precisely positioned at the corresponding position of the heel through the interlocking structure with the circular groove 61 of the base plate 3, providing cushioning support. The interlocking design ensures that the pad is not easy to shift, continuously and stably distributing the pressure on the heel, while also facilitating disassembly and replacement.
[0027] It is worth noting that the outer surfaces of the front support arc plate 1, the rear support arc plate 2, and the base plate 3 are all symmetrically fixed with fixing straps 4, and the inner side of the fixing straps 4 is provided with medical patches 41. By wrapping the fixing straps 4 around the patient's lower limbs, the tightness can be adjusted by using the adhesive or Velcro properties of the medical patches 41, so that the brace fits the patient's limbs tightly, preventing the brace from shifting during use, ensuring the stability of the support and decompression effect, and the fit can be adjusted according to the patient's comfort.
[0028] It is worth noting that a plate 74 is fixedly provided on one side of the fixed block 7, and the plate 74 moves through the movable block 71. When adjusting the distance between the front support arc plate 1 and the rear support arc plate 2, the moving direction of the movable block 71 is restricted to prevent it from shifting or rotating, ensuring that the front and rear arc plates move in parallel, and maintaining the stability of the support structure and the accuracy of the adjustment.
[0029] It is worth mentioning that a positioning plate 76 is fixedly provided on one side of the rear support arc plate 2, and a positioning block 75 is fixedly provided on one side of the front support arc plate 1. The positioning plate 76 moves through the positioning block 75, further enhancing the stability of the front and rear support arc plates 2 when they move relative to each other. It works in conjunction with the insert plate 74 to avoid misalignment of the arc plates during adjustment, ensuring the rigidity and reliability of the overall structure of the support and improving the safety of use.
[0030] Working principle: The front support arc plate 1 and the rear support arc plate 2 are connected by a fixed block 7, a movable block 71, a threaded column 72 and a knob 73 to form an adjustable lower limb wrapping structure. When the knob 73 is rotated, the threaded column 72 drives the movable block 71 to move relative to the fixed block 7, thereby adjusting the distance between the front and rear arc plates to adapt to the lower limb size of different patients.
[0031] The base plate 3 is fixed to the rear support arc plate 2 by the enclosure 31 to form the bottom support surface. The heel support pad 6 is inserted into the circular groove 61 of the base plate 3, precisely corresponding to the heel position and providing cushioning support.
[0032] The medical cotton pad 5 is fixed inside the rear support arc plate 2 by means of a mounting pad 51, a side block 52, a column 53, and a conical locking block 54. Its material is soft and can distribute pressure on the back of the lower limbs. The heel support pad 6 directly supports the heel. The two work together to reduce local pressure and prevent pressure injuries.
[0033] The fixation strap 4 is wrapped around the lower limb with medical tape 41 to ensure that the brace fits tightly with the patient's limb and avoids local pressure concentration caused by displacement;
[0034] Insert plate 74 passes through moving block 71, and positioning plate 76 passes through positioning block 75 to prevent displacement during adjustment of front and rear arc plates and ensure the stability of the support structure; tapered block 54 cooperates with slot 55 of mounting pad 51 to ensure that medical cotton gasket 5 is not easy to fall off after installation.
[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A lower limb brace for preventing pressure injuries to the heel, comprising a front support arc plate (1), characterized in that: A rear support arc plate (2) is provided on one side of the front support arc plate (1), and a base plate (3) is fixedly provided on one side of the rear support arc plate (2). A guardrail (31) is fixedly provided on the upper inner side of the base plate (3). A medical cotton pad (5) is detachably provided inside the rear support arc plate (2). A heel support soft pad (6) is provided on the lower inner side of the base plate (3), and the heel support soft pad (6) is located on the upper side of one side of the medical cotton pad (5).
2. The lower limb brace for preventing pressure injuries to the heel as described in claim 1, characterized in that: A fixing block (7) is fixed on one side of the rear support arc plate (2), and a moving block (71) is fixed on one side of the front support arc plate (1). A threaded rod (72) is rotatably provided on one side of the fixing block (7), and one end of the threaded rod (72) is threaded through the moving block (71) and fixedly provided with a knob (73).
3. A lower limb brace for preventing pressure injuries to the heel as described in claim 1, characterized in that: The medical cotton gasket (5) is symmetrically fixed with mounting pads (51) on both sides. The rear support arc plate (2) is symmetrically fixed with side blocks (52) on both sides. The upper surface of the side block (52) is fixed with a column (53). The upper end of the column (53) is fixed with a conical block (54). The upper surface of the mounting pad (51) is provided with a slot (55). The column (53) is inserted into the corresponding slot (55). The lower surface of the conical block (54) is movably fitted with the corresponding mounting pad (51).
4. A lower limb brace for preventing pressure injuries to the heel as described in claim 1, characterized in that: A circular groove (61) is provided on the lower inner side of the base plate (3), and the heel support pad (6) is fitted into the circular groove (61).
5. A lower limb brace for preventing pressure injuries to the heel as described in claim 1, characterized in that: The outer surfaces of the front support arc plate (1), the rear support arc plate (2) and the bottom plate (3) are symmetrically fixed with fixing straps (4), and the inner side of the fixing straps (4) is provided with medical patches (41).
6. A lower limb brace for preventing pressure injuries to the heel as described in claim 2, characterized in that: A plug plate (74) is fixedly provided on one side of the fixed block (7), and the plug plate (74) moves through the movable block (71).
7. A lower limb brace for preventing pressure injuries to the heel as described in claim 2, characterized in that: A positioning plate (76) is fixedly provided on one side of the rear support arc plate (2), and a positioning block (75) is fixedly provided on one side of the front support arc plate (1). The positioning plate (76) moves through the positioning block (75).