Foot pad for preventing venous thrombosis

By designing a foot-elevating pad to prevent venous thrombosis, and utilizing the combination of a movable elevating board and rollers, the patient's lower limbs can be exercised. This solves the problem that existing devices cannot promote blood circulation, reduces the risk of lower limb venous thrombosis, and improves the patient's health.

CN223817798UActive Publication Date: 2026-01-23GUANGDONG SECOND TRADITIONAL CHINESE MEDICINE HOSPITAL (GUANGDONG PROVINCE ENG TECH RES INST OF TCM)
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Patent Information

Application Number
CN202423313130.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2026-01-23
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Existing lower limb elevation devices can only raise the patient's lower limbs, but cannot promote blood circulation, leading to an increased risk of lower limb venous thrombosis in patients who are bedridden for extended periods.

Method used

A foot elevator designed to prevent venous thrombosis assists patients in leg exercises and promotes blood circulation through the combined use of a movable elevating board and rollers. The design includes rolling and sliding grooves to enable the movable elevating board to roll and slide, combined with springs to provide resistance and enhance the exercise effect.

Benefits of technology

It effectively promotes blood circulation in the lower limbs, reduces the risk of deep vein thrombosis in the lower limbs, and improves patients' physical activity and health.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of medical instruments, and provides a venous thrombosis prevention foot raising pad which comprises a base, a rolling groove is formed in the middle of the top face of the base, sliding grooves are symmetrically formed in the side walls of the base, a movable raising plate is movably connected to the inner sides of the sliding grooves in an inserted mode, and the movable raising plate is located above the base. And a connecting groove is formed in the middle of the bottom face of the movable heightening plate, a connecting shaft is fixed to the inner wall of the connecting groove, the outer side of the connecting shaft is movably sleeved with a roller, and the bottom of the roller is located on the inner side of the rolling groove. The lower limb containing groove in the top face of the movable heightening plate is used for containing the lower limbs of a patient, the heel groove can contain the heels of the patient, the movable heightening plate lifts the lower limbs of the patient, the two legs of the patient bend and stretch repeatedly, the feet forcibly drive the movable heightening plate to move back and forth on the base, and the rollers roll back and forth on the inner sides of the rolling grooves. The legs of the patient can be exercised, blood circulation of the lower limbs is promoted, and the lower limb vein thrombosis is better prevented.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a foot elevator for preventing venous thrombosis. Background Technology

[0002] Deep vein thrombosis (DVT) of the lower extremities is a common peripheral vascular disease. DVT-induced venous valve insufficiency and subsequent pulmonary embolism pose a significant risk to patients' work capacity and life safety. This disease has always been a major concern in clinical practice. Some patients require prolonged bed rest during treatment. When these patients lie still in hospital beds, prolonged lying down impairs blood flow, making them prone to numbness and tingling in the lower extremities. Over time, this can lead to slowed venous blood flow and a hypercoagulable state, ultimately resulting in deep vein thrombosis.

[0003] Currently, for patients who are bedridden for extended periods, medical staff typically place lower limb elevating pads to raise the patient's legs, promoting blood flow and preventing deep vein thrombosis. However, existing lower limb elevating pads often only raise the patient's legs to a certain height; the patient's legs remain on the pads and remain inactive for extended periods. The lower limbs do not get exercise, and the lack of sustained blood flow cannot be effectively prevented, thus failing to significantly reduce the risk of deep vein thrombosis.

[0004] Therefore, there is a need for a foot elevator to prevent venous thrombosis, which can help elevate the patient's lower limbs and assist the patient in leg exercises to promote blood circulation in the lower limbs and truly play a role in preventing lower limb venous thrombosis. Utility Model Content

[0005] To address the aforementioned issues, this invention proposes a foot elevator for preventing venous thrombosis, which can elevate the patient's lower limbs and assist in movement, thereby promoting blood circulation in the lower limbs.

[0006] To achieve the above objectives, the present invention proposes the following specific solutions:

[0007] A foot elevator for preventing venous thrombosis includes a base. A rolling groove is provided in the center of the top surface of the base. A sliding groove is symmetrically provided on the side wall of the base. A movable elevating plate is movably inserted into the inner side of the sliding groove, and the movable elevating plate is located above the base. A connecting groove is provided in the center of the bottom surface of the movable elevating plate. A connecting shaft is fixed to the inner wall of the connecting groove. A roller is movably sleeved on the outer side of the connecting shaft, and the bottom of the roller is located inside the rolling groove. A lower limb placement groove is symmetrically provided on the top surface of the movable elevating plate. A heel groove is provided on the inner wall of one end of the lower limb placement groove. A fixing frame is fixed to the edge of the top surface of the movable elevating plate, and the fixing frame is located on one side of the lower limb placement groove. A support cylinder is movably sleeved on the outer side of the fixing frame, and straps are symmetrically fixed to the outer wall of the support cylinder.

[0008] As a preferred technical solution of the foot elevator for preventing venous thrombosis according to this utility model, the movable elevator is provided with a telescopic groove on one side wall, a spring is fixed to the inner wall of one side of the telescopic groove, a fixing plate is fixed to the top edge of the base, the fixing plate is located on one side of the movable elevator, and one end of the spring is fixed to the side wall of the fixing plate.

[0009] As a preferred technical solution of the foot pad for preventing venous thrombosis according to this utility model, an arc-shaped pad is fixed to the inner wall of the lower limb placement groove.

[0010] As a preferred technical solution of the foot pad for preventing venous thrombosis according to this utility model, a heel pad is fixed to the inner wall of the heel groove.

[0011] As a preferred technical solution of the foot elevator for preventing venous thrombosis according to this utility model, the bottom surface of the movable elevator is symmetrically fixed with an L-shaped plate, and the L-shaped plate is movably inserted into the inner side of the sliding groove.

[0012] As a preferred technical solution of the foot pad for preventing venous thrombosis according to this utility model, the bottom edge of the base is fixed with an anti-slip pad.

[0013] As a preferred technical solution of the foot pad for preventing venous thrombosis according to this utility model, the anti-slip pad, the arc-shaped pad and the heel pad are all made of flexible materials, and the strap is made of elastic material.

[0014] As a preferred technical solution of the foot pad for preventing venous thrombosis according to this utility model, the anti-slip pad, connecting shaft and roller are all provided in multiple ways.

[0015] Compared with existing technologies, this utility model has the following advantages:

[0016] This invention elevates a patient's lower limbs using a movable platform. The patient's lower limbs are placed inside a lower limb placement groove, with the heels placed inside a heel groove. When the patient wants to exercise their legs, they rotate the support cylinder, causing the straps to adjust their position and secure them to the patient's feet. Then, the patient raises their knees and bends their legs forcefully. Because the patient's heels are inside the heel groove and the feet are secured by the straps, bending the legs causes the movable platform to move on the base. The rollers roll inside the rolling groove, the L-shaped plate slides inside the sliding groove, and the springs are stretched. During the process, the system provides some resistance to enhance the exercise effect. When the patient's legs are straight, their feet push the moving pad in the opposite direction. The rollers roll in the opposite direction inside the rolling groove, and the L-shaped plate slides in the opposite direction inside the sliding groove. Under the elastic tension of the spring, the patient can more easily push the moving pad in the opposite direction. The patient's legs repeatedly bend and straighten in this way, which can provide appropriate exercise. Compared with simply raising the lower limbs, it can better promote blood circulation in the lower limbs, prevent deep vein thrombosis in the lower limbs, and benefit the patient's health. Attached Figure Description

[0017] To better describe the technical solution of this utility model in detail, the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a three-dimensional view of the overall structure provided by this utility model;

[0019] Figure 2 This is a three-dimensional sectional view of the present invention;

[0020] Figure 3 This is a partial cross-sectional view of the movable elevation plate of this utility model;

[0021] Figure 4 This utility model Figure 1 Enlarged view of point A in the middle;

[0022] Figure 5 This utility model Figure 2 Enlarged diagram of point B in the middle.

[0023] In the diagram: 1. Base; 11. Anti-slip mat; 12. Rolling groove; 13. Sliding groove; 14. Fixing plate; 2. Movable raised platform; 21. L-shaped plate; 22. Lower limb placement groove; 221. Heel groove; 222. Arc-shaped pad; 223. Heel pad; 23. Fixing frame; 24. Support cylinder; 241. Strap; 25. Connecting groove; 251. Connecting shaft; 26. Roller; 27. Telescopic groove; 271. Spring. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Example

[0026] Please see Figure 1-5 As shown, the present invention provides the following technical solution: a footrest for preventing venous thrombosis, including a base 1, with an anti-slip pad 11 fixed to the bottom edge of the base 1. The anti-slip pad 11 can increase the friction between the base 1 and the bed, preventing the base 1 from sliding on the bed.

[0027] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, specifically, a rolling groove 12 is provided in the middle of the top surface of the base 1, which can limit the space for the roller 26 to roll. A sliding groove 13 is symmetrically provided on the side wall of the base 1 for connecting the L-shaped plate 21 and providing sliding space for the L-shaped plate 21. A movable elevation plate 2 is movably inserted into the inner side of the sliding groove 13, which can elevate the patient's lower limbs and assist the patient in leg exercises. The movable elevation plate 2 is located above the base 1. The bottom surface of the movable elevation plate 2 is symmetrically fixed with the L-shaped plate 21 to prevent the movable elevation plate 2 from separating from the base 1. The L-shaped plate 21 is movably inserted into the inner side of the sliding groove 13. A connecting groove 25 is provided in the middle of the bottom surface of the movable elevation plate 2 for accommodating the roller 26. A connecting shaft 251 is fixed to the inner wall of the connecting groove 25 for connecting the roller 26. The roller 26 is movably sleeved on the outer side of the connecting shaft 251. The roller 26 can both support the movable elevation plate 2 and make it easier for the patient to move it. The movable platform 2 moves, and the bottom of the roller 26 is located inside the rolling groove 12. Multiple anti-slip pads 11, connecting shafts 251, and rollers 26 are provided. The top surface of the movable platform 2 is symmetrically provided with a lower limb placement groove 22 for placing the patient's lower limbs. An arc-shaped pad 222 is fixed to the inner wall of the lower limb placement groove 22 to improve the patient's comfort. A heel groove 221 is provided on the inner wall of one end of the lower limb placement groove 22 to accommodate the patient's heel. A heel pad 223 is fixed to the inner wall of the heel groove 221 to support the patient's heel and make the patient more comfortable. The anti-slip pads 11, arc-shaped pads 222, and heel pads 223 are all made of flexible materials. This solution can not only elevate the patient's lower limbs, but also allow the patient's legs to bend and straighten through the back-and-forth movement of the movable platform 2, further promoting blood circulation in the patient's lower limbs, effectively preventing the patient's lower limb deep vein thrombosis, and helping the patient recover as soon as possible.

[0028] Reference Figure 1 , Figure 2 and Figure 3 As shown, specifically, a fixing frame 23 is fixed to the top edge of the movable elevation plate 2 to support the support cylinder 24. The fixing frame 23 is located on one side of the lower limb placement slot 22. The support cylinder 24 is movably sleeved on the outside of the fixing frame 23. The support cylinder 24 can provide support for the patient's feet and drive the strap 241 to adjust its position. The outer wall of the support cylinder 24 is symmetrically fixed with straps 241 for binding and fixing the patient's feet. The elastic straps 241 can deform to a certain extent to avoid binding too tightly and causing discomfort to the patient. The straps 241 are made of elastic material. In this solution, the position of the straps 241 can be adjusted by rotating the support cylinder 24. The patient can decide whether to use the straps 241 according to their actual situation, providing a more flexible choice.

[0029] Reference Figure 1 and Figure 2 As shown, specifically, the movable platform 2 has a telescopic groove 27 on one side wall for fixing and telescopically changing the spring 271. The spring 271 is fixed to the inner wall of one side of the telescopic groove 27 to provide elastic force for the movable platform 2. A fixing plate 14 is fixed to the top edge of the base 1 for fixing the spring 271. The fixing plate 14 is located on one side of the movable platform 2, and one end of the spring 271 is fixed to the side wall of the fixing plate 14. The spring 271 in this solution can provide elastic tension for the movable platform 2. When the patient's legs are bent, it provides a certain resistance. When the patient's legs are straightened, it assists the patient in pulling the movable platform 2 to move, which can improve the exercise effect and save the patient's physical strength.

[0030] The working principle and usage process of this utility model:

[0031] In use, the base 1 is placed on one end of the patient's lower limb on the hospital bed (multiple anti-slip pads 11 increase friction and prevent the base 1 from sliding on the hospital bed). The patient's lower limb is placed inside the lower limb placement groove 22, and the heel is located inside the heel groove 221 (the arc-shaped pad 222 and heel pad 223 improve the patient's comfort). The movable elevation plate 2 elevates the patient's lower limb. When the patient wants to perform leg exercises, the support cylinder 24 is rotated to adjust the position of the strap 241 and tie it to the patient's feet. Then, the patient bends both legs forcefully, raises their knees, and the patient's feet move the movable elevation plate 2. When the movable elevation plate 2 moves, the roller 26 rolls inside the rolling groove 12. The L-shaped plate 21 slides inside the sliding groove 13 and stretches the spring 271. The spring 271 also provides the patient with some resistance, enhancing the exercise effect. When the patient's leg is bent sufficiently, the leg begins to straighten, and the foot pushes the moving pad 2 to move in the opposite direction. When the moving pad 2 moves in the opposite direction, the roller 26 rolls in the opposite direction inside the rolling groove 12, and the L-shaped plate 21 slides in the opposite direction inside the sliding groove 13. The spring 271 can provide elastic tension to assist the patient in pulling the moving pad 2 to move in the opposite direction, saving the patient's energy. The patient's legs repeatedly bend and straighten in this way, which can exercise the lower limbs while raising the lower limbs, promote blood circulation in the lower limbs, and prevent lower limb venous thrombosis.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A footrest for preventing venous thrombosis, comprising a base (1), characterized in that: The base (1) has a rolling groove (12) in the middle of its top surface, and sliding grooves (13) are symmetrically provided on the side wall of the base (1). A movable shim plate (2) is movably inserted into the inner side of the sliding groove (13). The movable shim plate (2) is located above the base (1). A connecting groove (25) is provided in the middle of the bottom surface of the movable shim plate (2). A connecting shaft (251) is fixed to the inner wall of the connecting groove (25). A roller (26) is movably sleeved on the outer side of the connecting shaft (251). 6) The bottom is located inside the rolling groove (12). The top surface of the movable pad (2) is symmetrically provided with a lower limb placement groove (22). One end of the lower limb placement groove (22) is provided with a heel groove (221). A fixing frame (23) is fixed on the edge of the top surface of the movable pad (2). The fixing frame (23) is located on one side of the lower limb placement groove (22). A support cylinder (24) is movably sleeved on the outside of the fixing frame (23). Straps (241) are symmetrically fixed on the outer wall of the support cylinder (24).

2. The foot elevator for preventing venous thrombosis according to claim 1, characterized in that: The movable platform (2) has a telescopic groove (27) on one side wall. A spring (271) is fixed on the inner wall of one side of the telescopic groove (27). A fixing plate (14) is fixed on the top edge of the base (1). The fixing plate (14) is located on one side of the movable platform (2). One end of the spring (271) is fixed on the side wall of the fixing plate (14).

3. The foot elevator for preventing venous thrombosis according to claim 2, characterized in that: An arc-shaped pad (222) is fixed to the inner wall of the lower limb placement groove (22).

4. The foot elevator for preventing venous thrombosis according to claim 3, characterized in that: A heel pad (223) is fixed to the inner wall of the heel groove (221).

5. The foot elevator for preventing venous thrombosis according to claim 4, characterized in that: The bottom surface of the movable raised plate (2) is symmetrically fixed with an L-shaped plate (21), which is movably inserted into the inner side of the sliding groove (13).

6. The foot elevator for preventing venous thrombosis according to claim 5, characterized in that: The base (1) has an anti-slip pad (11) fixed to the bottom edge.

7. The foot elevator for preventing venous thrombosis according to claim 6, characterized in that: The anti-slip mat (11), the arc-shaped mat (222), and the heel pad (223) are all made of flexible materials, and the strap (241) is made of elastic material.

8. The foot elevator for preventing venous thrombosis according to claim 7, characterized in that: The anti-slip pad (11), connecting shaft (251) and roller (26) are each provided with multiple components.