A leg brace for preventing pressure injuries

Abstract

This utility model provides a leg brace for preventing pressure injuries, relating to the field of nursing equipment technology. It includes a transverse bidirectional drive seat, a longitudinal drive seat, a leg support frame, a limiting and blocking component, a first strip-shaped airbag, a second strip-shaped airbag, and a strip-shaped roller massage component. The device is clamped and fixed to a hospital bed for use. The patient's legs are placed on the upper end of the leg support frame. The height of the leg support frame is adjusted by the longitudinal drive seat to regulate the support height of the legs. When the legs are supported, the upper end of the strip-shaped square bar can be moved left and right to relieve muscle fatigue caused by maintaining one position for a long time. The first and second strip-shaped airbags are both inflatable airbags, supporting the legs to ensure comfort. When leg muscles are fatigued, the patient can move to the strip-shaped roller massage component for faster muscle relief, achieving long-term leg support and keeping the heels suspended.

Description

Technical Field

[0001] This utility model relates to the field of nursing equipment technology, and in particular to a leg brace for preventing pressure injuries. Background Technology

[0002] The descriptions in this section provide background information relating to this disclosure and do not constitute prior art.

[0003] Pressure injuries occur when local tissues are subjected to prolonged pressure, leading to persistent ischemia, hypoxia, malnutrition, and ultimately tissue ulceration and necrosis. For individuals requiring prolonged bed rest, pressure injuries are highly likely due to impaired blood circulation and decreased sensory perception. The heels, in particular, are a common site of pressure injuries because they are in prolonged contact with the bed surface, resulting in significant skin pressure.

[0004] Currently, in clinical practice, it is common to place a pillow under the patient's calf to keep the heel suspended in the air in order to prevent pressure injury to the heel. However, because patients maintain one position for a long time, their muscles are prone to fatigue, making it difficult for the heel to remain suspended for an extended period of time. Utility Model Content

[0005] The purpose of this invention is to provide a leg brace for preventing pressure injuries. It has the advantages of providing a support platform for lateral leg movement and relieving leg muscle fatigue through massage. It solves the technical problem that patients who maintain one posture for a long time are prone to muscle fatigue, making it difficult for their heels to remain suspended for extended periods.

[0006] This utility model provides a leg brace for preventing pressure injuries, comprising:

[0007] A transverse bidirectional drive seat, with longitudinal drive seats symmetrically fixedly mounted on the upper ends of its movable parts on both the left and right sides;

[0008] A leg support frame is fixedly fitted to the inner end of the movable part of the longitudinal drive seat;

[0009] The inner end of the leg support frame is fixedly equipped with a limit shield;

[0010] The upper left and right sides of the leg support frame are respectively provided with a first strip-shaped airbag and a second strip-shaped airbag along the length direction.

[0011] The upper middle part of the leg support frame is provided with a strip-shaped roller massage component along its length.

[0012] As a further optimization, to provide leg support and adjust the support height, the legs can move left and right at the upper end of the strip-shaped square bar when supported, relieving muscle fatigue caused by maintaining one position for a long time. Both the first and second strip-shaped airbags are inflatable airbags. Supporting the legs with either the first or second strip-shaped airbag ensures comfort. When leg muscles are fatigued, the legs can be moved to the strip-shaped roller massage component for faster muscle relief. The leg support frame includes:

[0013] A strip-shaped square rod, the outer end of which is fixedly connected to the inner end of the movable part of the longitudinal drive seat on the same side;

[0014] The first strip-shaped airbag and the second strip-shaped airbag are fixedly assembled to the left and right sides of the upper end of the strip-shaped square rod along the length direction;

[0015] The strip-shaped roller massage component is fixedly assembled along the length of the upper middle part of the strip-shaped square rod;

[0016] The upper ends of the first strip-shaped airbag, the second strip-shaped airbag, and the strip-shaped roller massage component are all arc-shaped surfaces;

[0017] The two ends of the strip-shaped roller massage component are attached to the inner ends of the first and second strip-shaped airbags.

[0018] As a further optimization, to support the patient's legs, the circular roller rotates due to friction as the legs move back and forth, thus massaging the legs. The strip-shaped roller massage component includes:

[0019] There are three mounting blocks arranged in parallel on the left and right sides, and the upper end of the mounting blocks is an arc surface;

[0020] A set of circular rollers is assembled between adjacent mounting blocks;

[0021] The roller assembly consists of three rollers arranged in parallel front to back, with both ends of the rollers rotatably connected to the positions between adjacent mounting blocks;

[0022] The three rollers are arranged in an arc shape with the center convex upwards.

[0023] As a further optimization, in order to shield the inner end of the leg support frame and prevent the leg from slipping off the upper end of the leg support frame, the limiting shield includes:

[0024] The lower end of the upright plate is fixedly assembled to the inner edge of the upper surface of the leg support frame;

[0025] The upper end of the upright plate is integrally formed with an arc-shaped plate, and the upper end of the arc-shaped plate is bent toward the longitudinal drive seat on the same side.

[0026] As a further optimization, in order to provide elastic cushioning through the first elastic rubber pad and prevent the legs from bumping against the upright plate and the curved plate when moving on the strip square bar, the first elastic rubber pad is attached and fixed to the outer side of the upright plate and the curved plate.

[0027] As a further optimization, to prevent accidental injury from leg bumps on the lower front and rear edges of the strip-shaped square bar by using elastic rubber strips, the lower front and rear edges of the strip-shaped square bar are equipped with anti-bump shielding structures, which include:

[0028] The groove is L-shaped in cross-section;

[0029] The strip-shaped grooves are symmetrically formed on the front and rear edges of the lower end of the strip-shaped square bar;

[0030] An elastic rubber strip is adhered and fixed inside the strip groove, and its cross-section is L-shaped to match the strip groove.

[0031] As a further optimization, in order to drive the two first sliders on both sides to clamp onto the sides of the hospital bed, fix the device to the hospital bed, and make the front and rear positions of the fixation adjustable, the transverse bidirectional drive seat includes:

[0032] A strip-shaped horizontal plate with rounded ends;

[0033] The upper surface of the strip-shaped horizontal plate is provided with a first strip-shaped through hole along its length;

[0034] One end of a bidirectional screw is rotatably mounted on one side of the inner wall of the first strip-shaped through hole, and the other end of the bidirectional screw is fixedly connected to a first crank handle through the other side of the inner wall of the first strip-shaped through hole;

[0035] The two-way screw has a first slider threaded to both sides of the threaded part, and the first slider slides into the first strip-shaped through hole;

[0036] The upper end of the first slider extends out a first strip-shaped through hole and is fixedly connected to the lower end of the longitudinal drive seat on the same side.

[0037] As a further optimization, in order to drive the leg support frame to move up and down, and thus drive the supported leg to move up and down, the longitudinal drive seat includes:

[0038] A strip-shaped longitudinal plate, with a second strip-shaped through hole opened along its length on its inner side;

[0039] A one-way screw, the lower end of which is rotatably mounted on the bottom surface of the inner cavity of the second strip-shaped through hole, and the upper end of the one-way screw is fixedly connected to the top surface of the inner cavity of the second strip-shaped through hole;

[0040] The outer wall of the one-way screw is screwed with a second slider, which slides and fits into the second strip-shaped through hole;

[0041] The second slider extends from the inner end to form a second strip-shaped through hole, which is fixedly connected to the outer end of the leg support frame on the same side.

[0042] As a further optimization, in order to increase the contact friction and make the first sliders on both sides of the transverse bidirectional drive seat more stably clamped on the side of the hospital bed, a second elastic rubber pad is attached and fixed to the inner side of the first slider at the upper part of the first strip-shaped through hole.

[0043] As a further optimization, in order to attach and fix the device to the bottom of the hospital bed and assist in fixing the device to the hospital bed, a strip-shaped groove is opened in the middle of the upper surface of the transverse bidirectional drive seat along the length direction, and a double-sided adhesive strip is attached and fixed in the groove.

[0044] This utility model provides an improved leg brace for preventing pressure injuries, which has the following improvements and advantages compared with the prior art:

[0045] A transverse bidirectional drive seat is positioned under the hospital bed. The drive seat clamps the sliders on both sides of the bed for fixation, and the front and rear positions of the fixation can be adjusted. The patient's legs are placed on the upper end of the leg support frame. Due to the setting of the limiting and blocking device, the legs are effectively prevented from accidentally falling off the leg support frame. The height of the leg support frame is adjusted by adjusting the height of the leg support through the longitudinal drive seat. When the legs are supported, the upper end of the strip square bar can be moved left and right to relieve muscle fatigue caused by maintaining one position for a long time. The first and second strip airbags are both inflatable airbags. The first or second strip airbag supports the legs to ensure comfort. When the leg muscles are fatigued, they can be moved to the strip roller massage piece for massage to relieve muscle fatigue more quickly, achieving long-term leg support and keeping the heels suspended. Attached Figure Description

[0046] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of the structure of this utility model;

[0048] Figure 2 This is a schematic diagram of the leg support frame structure of this utility model;

[0049] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0050] Figure 4 This is a schematic diagram of the bidirectional screw structure of this utility model;

[0051] Figure 5 This is a schematic diagram of the longitudinal drive seat structure of this utility model;

[0052] Figure 6 This is a schematic diagram of the structure of this utility model in use.

[0053] Explanation of reference numerals in the attached figures:

[0054] 1-Horizontal bidirectional drive seat, 11-Strip horizontal plate, 12-First strip through hole, 13-Bidirectional screw, 14-First slider, 15-First crank handle, 2-Vertical drive seat, 21-Strip vertical plate, 22-Second strip through hole, 23-One-way screw, 24-Second slider, 25-Second crank handle, 3-Leg support frame, 31-Strip square rod, 32-First strip airbag, 33-Second strip airbag, 34-Strip roller massage component, 341-Mounting block, 342-Round roller, 4-Limiting and blocking component, 41-Upright plate, 42-Arc plate, 43-First elastic rubber pad, 5-Double-sided adhesive strip, 6-Anti-collision blocking structure, 61-Strip groove, 62-Elastic rubber strip, 7-Second elastic rubber pad. Detailed Implementation

[0055] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0056] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0057] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0058] Please see Figure 1-6 This utility model provides a technical solution: a leg brace for preventing pressure injuries, comprising:

[0059] A transverse bidirectional drive seat 1, with longitudinal drive seats 2 symmetrically fixedly mounted on the upper ends of its movable parts on both the left and right sides;

[0060] A leg support frame 3 is fixedly mounted on the inner end of the movable part of the longitudinal drive seat 2;

[0061] A limit shield 4 is fixedly assembled on the inner end of the leg support frame 3;

[0062] The upper left and right sides of the leg support frame 3 are respectively provided with a first strip-shaped airbag 32 and a second strip-shaped airbag 33 along the length direction;

[0063] The upper middle part of the leg support frame 3 is provided with a strip-shaped roller massage component 34 along the length direction.

[0064] Specifically in this embodiment, the transverse bidirectional drive seat 1 drives the movable parts on both sides to move in opposite directions or towards each other; the longitudinal drive seat 2 drives its movable parts to move the leg support frame 3 up and down.

[0065] Furthermore, the transverse bidirectional drive seat 1 is placed under the hospital bed. The transverse bidirectional drive seat 1 drives the first sliders 14 on both sides to clamp and fix them on the side of the hospital bed. The front and rear positions of the fixation can be adjusted. The patient's legs are placed on the upper end of the leg support frame 3. Due to the setting of the limiting shield 4, the legs are effectively prevented from accidentally falling out of the leg support frame 3. The height of the leg support frame 3 is adjusted by adjusting the height of the leg support through the longitudinal drive seat 2.

[0066] More specifically, when the legs are supported, the muscles fatigue caused by maintaining one position for a long time can be relieved by moving the upper end of the strip square bar 31 left and right. The first strip airbag 32 and the second strip airbag 33 are both inflatable airbags. The legs are supported by the first strip airbag 32 or the second strip airbag 33 to ensure comfort. When the leg muscles are fatigued, they can be moved to the strip roller massage piece 34 for massage to relieve muscle fatigue more quickly.

[0067] Understandably, the lengths of the first strip-shaped airbag 32, the second strip-shaped airbag 33, and either the first strip-shaped airbag 32 or the second strip-shaped airbag 33 are similar, and all three are longer than the outer diameter of the lower leg of an average adult. When using the device, the legs on both sides are placed on the leg support frames 3 on both sides respectively. The device can be used with ordinary hospital beds and is highly practical.

[0068] The device is suitable for use by bedridden patients who are able to move their legs independently.

[0069] In some embodiments, the leg support frame 3 includes:

[0070] The outer end of the strip-shaped square rod 31 is fixedly connected to the inner end of the movable part of the longitudinal drive seat 2 on the same side;

[0071] The first strip-shaped airbag 32 and the second strip-shaped airbag 33 are fixedly assembled on the left and right sides of the upper end of the strip-shaped square rod 31 along the length direction.

[0072] The strip-shaped roller massage component 34 is fixedly assembled along the length of the strip-shaped square rod 31 at the upper middle part;

[0073] The upper ends of the first strip-shaped airbag 32, the second strip-shaped airbag 33, and the strip-shaped roller massage component 34 are all arc-shaped surfaces;

[0074] The two ends of the strip-shaped roller massage component 34 are attached to the inner ends of the first strip-shaped airbag 32 and the second strip-shaped airbag 33.

[0075] Specifically in this embodiment, the first strip-shaped airbag 32 and the second strip-shaped airbag 33 are inflatable airbags made of rubber material. They are made of rubber material with good wear resistance. After being inflated and squeezed, they will deform to a certain extent and flexibly support the patient's lower leg.

[0076] Furthermore, when the leg muscles are fatigued, the legs are moved laterally and slid onto the strip-shaped roller massager 34, with the lower legs alternatingly moving to the strip-shaped roller massager 34 for massage.

[0077] In some embodiments, the strip roller massage member 34 includes:

[0078] Mounting blocks 341 are arranged in three parallel positions on the left and right, and the upper end of mounting blocks 341 is an arc surface;

[0079] A set of circular rollers is assembled between adjacent mounting blocks 341;

[0080] The roller assembly consists of three rollers 342 arranged in parallel front to back, with both ends of the rollers 342 rotatably connected between adjacent mounting blocks 341.

[0081] The three circular rollers 342 are arranged in an arc shape with the center convex upwards.

[0082] Specifically in this embodiment, the arc surface formed by the distribution of the three circular rollers 342 has a small slope. When the calf is squeezed, it will create a depression that makes overall contact with the arc surface. As the calf moves back and forth, it drives the circular rollers 342 to rotate, and the rotating circular rollers 342 massage the calf muscles.

[0083] Understandably, the strip-shaped roller massage component 34 is equipped with two sets of round rollers to prevent the round roller 342 from being squeezed and deformed when the lower leg is supported by the longer round roller 342.

[0084] In some embodiments, the limiting shield 4 includes:

[0085] The lower end of the upright plate 41 is fixedly assembled to the inner edge of the upper surface of the leg support frame 3;

[0086] An arc-shaped plate 42 is integrally formed on the upper end of the upright plate 41, and the upper end of the arc-shaped plate 42 is bent toward the longitudinal drive seat 2 on the same side.

[0087] Specifically in this embodiment, the upright plate 41 and the arc plate 42 cover the inner end of the leg support frame 3 to prevent the legs from slipping off the upper end of the leg support frame 3.

[0088] Understandably, patients whose legs can only move slightly need assistance from others to remove their lower legs from the leg support frame 3, while patients whose legs can move independently can lift their legs to remove their lower legs from the leg support frame 3 on their own.

[0089] In some embodiments, a first elastic rubber pad 43 is attached and fixed to the outer side of the upright plate 41 and the arc plate 42. The first elastic rubber pad 43 plays an elastic buffering role to prevent the legs from bumping against the upright plate 41 and the arc plate 42 when moving on the strip square bar 31.

[0090] In some embodiments, the front and rear edges of the lower end of the strip-shaped square bar 31 are equipped with anti-collision shielding structures 6, which include:

[0091] The strip-shaped groove 61 has an L-shaped cross-section;

[0092] The strip-shaped grooves 61 are symmetrically formed on the front and rear edges of the lower end of the strip-shaped square bar 31;

[0093] An elastic rubber strip 62 is attached and fixed inside the strip groove 61. Its cross-section is L-shaped and matches the strip groove 61. The elastic rubber strip 62 covers the front and rear edges of the lower end of the strip square bar 31 to prevent accidental injury to the front and rear edges of the lower end of the strip square bar 31 when the legs are raised.

[0094] In some embodiments, the transverse bidirectional drive unit 1 includes:

[0095] The strip-shaped horizontal plate 11 has rounded ends;

[0096] A first strip-shaped through hole 12 is provided on the upper surface of the strip-shaped horizontal plate 11 along the length direction;

[0097] One end of a bidirectional screw 13 is rotatably mounted on one side of the inner wall of the first strip-shaped through hole 12, and the other end of the bidirectional screw 13 is fixedly connected to the first crank handle 15 through the other side of the inner wall of the first strip-shaped through hole 12.

[0098] The first slider 14 is screwed to the threaded parts on both sides of the bidirectional screw 13, and the first slider 14 slides and fits into the first strip-shaped through hole 12;

[0099] The first slider 14 extends from the upper end of the first strip-shaped through hole 12 and is fixedly connected to the lower end of the longitudinal drive seat 2 on the same side.

[0100] Specifically in this embodiment, the bidirectional screw 13 is the prior art, with the threads on both sides of the screw arranged in opposite directions, and a first slider 14 screwed onto the inner thread;

[0101] Furthermore, during use, rotating the first crank handle 15 drives the bidirectional screw 13 to rotate clockwise or counterclockwise, thereby driving the first sliders 14 symmetrically screwed on the bidirectional screw 13 to move in opposite directions or towards each other. When the two first sliders 14 move towards each other, they are clamped on the side wall of the hospital bed, fixing the device to the hospital bed.

[0102] In some embodiments, the longitudinal drive seat 2 includes:

[0103] The strip-shaped longitudinal plate 21 has a second strip-shaped through hole 22 along its length on its inner side;

[0104] A one-way screw 23, the lower end of which is rotatably mounted on the bottom surface of the inner cavity of the second strip-shaped through hole 22, and the upper end of the one-way screw 23 is fixedly connected to the top surface of the inner cavity of the second strip-shaped through hole 22;

[0105] A second slider 24 is screwed onto the outer wall of the one-way screw 23, and slides and fits into the second strip-shaped through hole 22.

[0106] The second slider 24 extends from the inner end to form a second strip-shaped through hole 22, which is fixedly connected to the outer end of the leg support frame 3 on the same side.

[0107] Specifically in this embodiment, the one-way screw 23 is driven to rotate clockwise or counterclockwise by rotating the second crank 25. The one-way screw 23 is a screw with the same thread direction on the outer wall. The one-way screw 23 drives the second slider 24 screwed on it to move up and down. The second slider 24 drives the leg support frame 3 fixed on the same side to rise and fall.

[0108] In some embodiments, a second elastic rubber pad 7 is attached and fixed to the inner side of the first slider 14 at the upper end of the first strip-shaped through hole 12, which increases the friction between the inner side of the first slider 14 and the contacting side wall of the hospital bed, so that the transverse bidirectional drive seat 1 drives the first sliders 14 on both sides to be clamped more stably on the side of the hospital bed.

[0109] In some embodiments, a strip-shaped groove is provided in the middle of the upper surface of the transverse bidirectional drive seat 1 along the length direction, and a double-sided adhesive strip 5 is pasted and fixed in the groove. The device is pasted and fixed to the bottom of the bed by the double-sided adhesive strip 5, which helps to fix the device to the bed.

[0110] Furthermore, when disassembling the device, the double-sided adhesive strip 5 can effectively prevent the device from falling to the ground due to slippage when releasing the clamps of the first sliders 14 on both sides of the bed. After releasing the clamps of the first sliders 14 on both sides, the double-sided adhesive strip 5 can be peeled off from the bottom of the bed.

[0111] Understandably, the double-sided adhesive strip 5 can be peeled off from the strip groove on the upper surface of the transverse bidirectional drive seat 1 for replacement, ensuring its adhesion.

[0112] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A leg brace for preventing pressure ulcers, characterized by, include: A transverse bidirectional drive seat (1) has longitudinal drive seats (2) symmetrically fixedly mounted on the upper ends of its movable parts on the left and right sides. The inner end of the movable part of the longitudinal drive seat (2) is fixedly fitted with a leg support frame (3); The inner end of the leg support frame (3) is fixedly fitted with a limit shield (4); The upper left and right sides of the leg support frame (3) are respectively provided with a first strip-shaped airbag (32) and a second strip-shaped airbag (33) along the length direction; The upper middle part of the leg support frame (3) is provided with a strip-shaped roller massage component (34) along the length direction.

2. The leg brace for preventing pressure injuries according to claim 1, characterized in that, The leg support frame (3) includes: The outer end of the strip-shaped square rod (31) is fixedly connected to the inner end of the movable part of the longitudinal drive seat (2) on the same side; The first strip-shaped airbag (32) and the second strip-shaped airbag (33) are fixedly assembled on the left and right sides of the upper end of the strip-shaped square rod (31) along the length direction; The strip-shaped roller massage component (34) is fixedly assembled along the length direction to the middle of the upper end of the strip-shaped square rod (31); The upper ends of the first strip-shaped airbag (32), the second strip-shaped airbag (33), and the strip-shaped roller massage component (34) are all arc-shaped surfaces; The two ends of the strip-shaped roller massage component (34) are attached to the inner ends of the first strip-shaped airbag (32) and the second strip-shaped airbag (33).

3. A leg brace for preventing pressure injuries according to claim 2, characterized in that, The strip-shaped roller massage component (34) includes: There are three mounting blocks (341) arranged in parallel on the left and right sides, and the upper end of the mounting block (341) is an arc surface; A set of circular rollers is assembled between adjacent mounting blocks (341); The roller assembly consists of three parallel rollers (342) arranged in a front-to-back manner, with both ends of the rollers (342) rotatably connected between adjacent mounting blocks (341). The three rollers (342) are arranged in an arc shape with the center convex upward.

4. A leg brace for preventing pressure injuries according to claim 1, characterized in that, The limiting and blocking component (4) includes: The lower end of the upright plate (41) is fixedly assembled to the inner edge of the upper surface of the leg support frame (3); The upper end of the upright plate (41) is integrally formed with an arc-shaped plate (42), and the upper end of the arc-shaped plate (42) is bent toward the longitudinal drive seat (2) on the same side.

5. A leg brace for preventing pressure injuries according to claim 4, characterized in that, The outer surfaces of the upright plate (41) and the arc plate (42) are fixed with a first elastic rubber pad (43).

6. A leg brace for preventing pressure injuries according to claim 2, characterized in that, The lower end of the strip-shaped square bar (31) is equipped with anti-collision shielding structures (6) at both the front and rear edges, which include: The groove (61) is L-shaped in cross-section; The strip-shaped groove (61) is symmetrically opened on the front and rear edges of the lower end of the strip-shaped square rod (31); An elastic rubber strip (62) is attached and fixed inside the strip groove (61), and its cross-section is L-shaped to match the strip groove (61).

7. A leg brace for preventing pressure injuries according to claim 1, characterized in that, The transverse bidirectional drive seat (1) includes: A strip-shaped horizontal plate (11) has rounded ends; The upper surface of the strip-shaped horizontal plate (11) is provided with a first strip-shaped through hole (12) along the length direction; One end of a bidirectional screw (13) is rotatably mounted on one side of the inner wall of the first strip-shaped through hole (12), and the other end of the bidirectional screw (13) is fixedly connected to the other side of the inner wall of the first strip-shaped through hole (12) with a first crank handle (15). The two-way screw (13) has a first slider (14) screwed into the threaded parts on both sides, and the first slider (14) slides and fits into the first strip-shaped through hole (12); The upper end of the first slider (14) extends out a first strip-shaped through hole (12) and is fixedly connected to the lower end of the longitudinal drive seat (2) on the same side.

8. A leg brace for preventing pressure injuries according to claim 1, characterized in that, The longitudinal drive seat (2) includes: A strip-shaped longitudinal plate (21) has a second strip-shaped through hole (22) on its inner side along the length direction; A one-way screw (23) is rotatably mounted on the bottom surface of the inner cavity of the second strip-shaped through hole (22) at its lower end, and a second crank handle (25) is fixedly connected to the upper end of the one-way screw (23) through the top surface of the inner cavity of the second strip-shaped through hole (22); The outer wall of the one-way screw (23) is screwed with a second slider (24), which slides and fits into the second strip-shaped through hole (22); The second slider (24) extends from the inner end to form a second strip-shaped through hole (22) which is fixedly connected to the outer end of the leg support frame (3) on the same side.

9. A leg brace for preventing pressure injuries according to claim 7, characterized in that, The inner side of the first slider (14) is attached and fixed with a second elastic rubber pad (7) at the upper end of the first strip-shaped through hole (12).

10. A leg brace for preventing pressure injuries according to claim 1, characterized in that, The transverse bidirectional drive seat (1) has a strip-shaped groove in the middle of its upper surface along the length direction, and a double-sided adhesive strip (5) is pasted and fixed inside it.

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