A bed ankle joint auxiliary exercise mechanism for preventing venous thrombosis

Abstract

The application provides a kind of prevents venous thrombosis bed with ankle auxiliary exercise mechanism, belong to medical training device technical field. Including base, the top of base is equipped with rotating shaft seat one and rotating shaft seat two, the top of base is placed with the foot of the board, the top of the foot of the board is equipped with heel slot, the one end of rotating shaft seat one is provided with stretch plate, the back bottom end of stretch plate is provided with elastic telescopic rod. The application is equipped with buffer massage assembly, etc., to improve the patient during exercise, through the control of heel displacement caused by palm off, increase the adjustment steering assembly, adapt to different foot movement flip angle, at the same time, increase the resistance, accelerate the compactness of foot bottom stress surface, promote the circulation of blood, improve the exercise effect, the chain use of massage function, increase the interest of patient exercise, accelerate the recovery cycle, avoid the formation of venous thrombosis, cope with different palm size at the same time, reduce the workload of medical staff.

Description

Technical Field

[0001] This invention relates to the field of medical training device technology, and in particular to a bed-assisted ankle joint exercise mechanism for preventing venous thrombosis. Background Technology

[0002] The ankle joint is formed by the articular surfaces of the lower ends of the tibia and fibula and the trochlea of ​​the talus, hence it is also known as the talus-lower leg joint.

[0003] Venous thrombosis is a vascular disease caused by the stagnation and coagulation of blood in veins. It can occur in the upper and lower limbs, with lower limb venous thrombosis being more common. Because thrombi can grow continuously, even reaching the inferior vena cava, if they break off and reach the lungs, they can block the pulmonary artery and cause sudden death. Therefore, it is extremely dangerous for patients. There are many causes of venous thrombosis, including abnormal blood components, damage to the venous endothelium, and changes in venous blood flow velocity due to prolonged inactivity.

[0004] For patients who are currently able to move independently, it is recommended to exercise their lower limbs as much as possible, especially by forcefully moving the ankle joint. This can fully mobilize the calf muscle pump, or "second heart," to accelerate the flow of venous blood in the lower limbs, which can help prevent deep vein thrombosis (DVT). However, at present, when patients perform ankle rehabilitation exercises, the resistance and range of motion in the foot are insufficient, making it difficult to achieve the desired DVT prevention effect. Furthermore, the exercise equipment often features only unidirectional circular movements, limiting its function. When the foot is plantarflexed or dorsiflexed, it may slide downwards and leave the equipment, causing the patient to lose strength and resulting in poor training effectiveness. This can even lead to patients becoming skeptical of the equipment used for DVT prevention exercises. The monotonous reciprocating movements also reduce patient interest and lead to a lazy attitude, reducing the number of training sessions and resulting in a slow recovery period. In addition, the limited activity levels prevent the use of other methods to increase lower limb activity. Furthermore, some exercise equipment has limited effects and requires staff assistance, increasing the workload of clinical staff.

[0005] Therefore, this application provides a bedside ankle joint assistive exercise device for preventing venous thrombosis to meet the needs. Summary of the Invention

[0006] The technical problem this invention aims to solve is to provide a bedside ankle joint assistive exercise device for preventing venous thrombosis. This addresses the shortcomings of existing ankle joint rehabilitation exercises, where insufficient resistance and rotation range of the foot prevent the effective prevention of venous thrombosis. Furthermore, many exercise devices are limited to unidirectional circular movements, and during plantar flexion and dorsiflexion, the foot may slide downwards and leave the device, leading to fatigue, poor training results, and even causing patients to doubt the effectiveness of such devices. The monotonous reciprocating motion also reduces patient interest, leading to a lazy attitude, fewer training sessions, slow rehabilitation, and limited activity levels, while failing to increase lower limb activity through other means. Additionally, some exercise devices offer limited effects and require staff assistance, increasing the workload of clinical staff.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0008] A bedside ankle-assisted exercise device for preventing venous thrombosis, comprising:

[0009] The base has a rotating shaft seat 1 and a rotating shaft seat 2 installed on its top. A support plate is placed on top of the base, and a heel groove is installed on the top of the support plate. A tension plate is provided at one end of the rotating shaft seat 1, and an elastic telescopic rod is provided at the bottom back of the tension plate. A rack and pinion seat is provided at the top right side of the base, and a gear rocker groove is meshed inside the rack and pinion seat. A gas spring is provided at the top back of the tension plate, and the other end of the gas spring is connected to one side of the rotating shaft seat 2.

[0010] A cushioning massage component is located inside the base. The cushioning massage component can adapt to the backward movement of the heel, so that the sole plate can better fit the stretching plate, while massaging and promoting blood circulation in the calf.

[0011] The adjustable steering component is located on the right side of the rotating shaft seat. The adjustable steering component adapts to the changes in steering force exerted by the foot, so that the sole of the foot can better fit the stretching plate, while also satisfying the conditions for left and right rotation.

[0012] A foot rehabilitation component is disposed inside a tension plate and is used to simultaneously stimulate acupoints on the soles of the patient's feet and provide blood circulation massage.

[0013] Optionally, the cushioning massage component includes a sliding block, which is installed at the bottom of the receiving plate; multiple sets of pulleys are provided on both sides of the sliding block, and the pulleys are slidably connected in the base groove.

[0014] Optionally, a rack is provided on the right side of the slide block, and a gear is meshed with the surface of the rack.

[0015] Optionally, a multi-segment connecting rod is provided on one side of the gear, and multiple sets of the multi-segment connecting rod are provided on both sides of the gear. A rubber wheel is connected to the top of the multi-segment connecting rod. The multi-segment connecting rod is composed of a paddle and an arc-shaped connecting rod, and the arc-shaped connecting rod is disposed in the groove on the inner wall of the receiving plate.

[0016] Optionally, a spring seat is provided on the right side of the slide block, and the other end of the spring seat is fixed to the inner wall of the base.

[0017] Optionally, the adjusting steering assembly includes an arc-shaped slide rail, which is mounted on one side of the rotating shaft seat, and an arc-shaped rack and pinion belt is provided inside the arc-shaped slide rail.

[0018] Optionally, the surface of the arc-shaped rack belt is meshed with a gear seat, and a rotating shaft is mounted on the surface of the gear seat. The other end of the rotating shaft is connected to the bottom of the tension plate. The rotating shafts on both sides of the gear seat slide inside the arc-shaped slide rail. While the left side of the rotating shaft is fixedly connected to the gear seat, the top of the rotating shaft can rotate 270 degrees.

[0019] Optionally, the foot rehabilitation assembly includes a piston sleeve mounted on top of a gas spring.

[0020] Optionally, a segmented adjusting rod is provided on one side of the piston sleeve, and a spring support is provided at the top of the segmented adjusting rod; a protrusion is provided at the top of the segmented adjusting rod and rollers are provided on both sides, the protrusion supports the bottom of the spring of the spring support, and the rollers on both sides of the segmented adjusting rod are installed on the inner wall of the tension plate.

[0021] Optionally, a massage hammer is provided at the top of the elastic support, and the surface of the massage hammer is provided with multiple sets of protrusions.

[0022] Compared with the prior art, the present invention has at least the following beneficial effects:

[0023] In the above solution, by setting up a cushioning massage component, and utilizing the cooperation between the sliding block, rack, gear, multi-segment connecting rod, and spring seat, when the patient is performing rehabilitation exercises, the force exerted by the heel drives the foot forward in plantar flexion and dorsiflexion. Due to the influence of the human body's structure, this can cause the heel to shift backward, and the foot to follow, disengaging from the stretching plate. The sliding block counteracts this displacement through itself and the spring seat. Furthermore, during the movement of the sliding block, the rack drives the gear to rotate, and simultaneously, the multi-segment connecting rod rotates. Due to the distance traveled, the gear does not rotate a full circle, causing the rubber wheel to make small-amplitude protrusions and rolls on the patient's calf, providing intermittent massage. This stimulates the blood vessels inside the calf, applies pressure to the outer surface, and increases blood flow, effectively preventing poor training results caused by heel displacement and foot weakness during exercise. At the same time, the use of the rubber wheel enhances the leg's rehabilitation function during exercise and provides a beneficial and enriching exercise experience.

[0024] By setting up an adjustable steering component, utilizing the coordination between the arc-shaped slide rail, the arc-shaped rack and belt, the gear seat, and the rotating shaft, ankle joint exercises allow for simultaneous plantar flexion and dorsiflexion, as well as inversion and eversion, avoiding the limitation of single-function exercise equipment. The addition of a gas spring provides resistance during plantar flexion, requiring some effort from the patient to complete the movement. The elastic telescopic rod accommodates different foot sizes and varying degrees of foot flexion. The rotation angle of the tension plate can be determined via the gear rocker groove, maximizing the effectiveness of the exercise equipment. Furthermore, it is designed to suit different user groups. A certain range of motion allows for maximum feedback during exercise, promoting blood flow and preventing venous thrombosis. Simultaneously, the foot rehabilitation components, utilizing piston sleeves, segmented adjustable rods, elastic supports, and massage hammers, work together to displace the piston sleeves via a gas spring during plantar flexion and dorsiflexion. This causes the massage hammers to roll and thrust against the Yongquan acupoint and the sole of the foot, promoting blood circulation. Other movements can be performed simultaneously, increasing lower limb activity, improving blood circulation, increasing foot rotation angles, enhancing exercise effectiveness, increasing patient interest, accelerating the recovery period, and preventing venous thrombosis. Attached Figure Description

[0025] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0026] Figure 1A schematic diagram of the main three-dimensional structure of a bed-assisted ankle joint exercise device for preventing venous thrombosis;

[0027] Figure 2 Schematic diagram of the right-side view of the ankle joint assistive exercise device for bed use in the prevention of venous thrombosis;

[0028] Figure 3 A schematic diagram of the left sectional view of a bed-assisted ankle joint exercise device for preventing venous thrombosis;

[0029] Figure 4 A three-dimensional structural diagram showing the positional relationship between the receiving plate and the cushioning massage component;

[0030] Figure 5 This is a schematic diagram of the three-dimensional structure of the cushioning massage component;

[0031] Figure 6 A three-dimensional structural diagram illustrating the connection between the steering assembly and the tension plate;

[0032] Figure 7 This is a three-dimensional structural diagram showing the internal connection relationship of the arc-shaped slide rail;

[0033] Figure 8 A three-dimensional structural diagram showing the positional relationship between the elastic telescopic rod and the gear rocker groove;

[0034] Figure 9 A three-dimensional structural diagram illustrating the connection between the gas spring and the foot rehabilitation components;

[0035] Figure 10 This is a schematic diagram of the three-dimensional structure of a foot rehabilitation component.

[0036] [Figure Labels]

[0037] 1. Base; 2. Rotating shaft seat one; 3. Support plate; 4. Heel groove; 5. Buffer massage component; 51. Slide block; 52. Rack; 53. Gear; 54. Multi-segment connecting rod; 55. Rubber wheel; 56. Spring seat; 6. Adjustable steering component; 61. Arc-shaped slide rail; 62. Arc-shaped rack belt; 63. Gear seat; 64. Rotating shaft rod; 7. Foot rehabilitation component; 71. Piston sleeve; 72. Segmented adjusting rod; 73. Elastic support; 74. Massage hammer; 8. Stretching plate; 9. Elastic telescopic rod; 10. Rack limit seat; 11. Gear rocker groove; 12. Gas spring; 13. Rotating shaft seat two.

[0038] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0039] The following is a detailed description of a bed-assisted ankle joint exercise mechanism for preventing venous thrombosis provided by the present invention, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0040] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0041] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0042] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0043] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0044] like Figures 1 to 10As shown, an embodiment of the present invention provides a bed-assisted ankle joint exercise mechanism for preventing venous thrombosis, including a base 1. A rotating shaft seat 1 2 and a rotating shaft seat 2 13 are mounted on the top of the base 1. A support plate 3 is placed above the base 1. A heel groove 4 is mounted on the top of the support plate 3. A tension plate 8 is provided at one end of the rotating shaft seat 1 2. An elastic telescopic rod 9 is provided at the bottom back of the tension plate 8. A rack and pinion seat 10 is provided on the top right side of the base 1. A gear rocker groove 11 is meshed inside the rack and pinion seat 10. A gas spring 12 is provided at the top back of the tension plate 8, and the other end of the gas spring 12 is connected to one side of the rotating shaft seat 2 13.

[0045] It also includes a cushioning massage component 5, which is installed inside the base 1. The cushioning massage component 5 can adapt to the backward movement of the heel, so that the sole of the foot can better fit the stretching plate 8, and at the same time massage the calf to promote blood circulation. It also includes an adjusting steering component 6, which is provided on the right side of the rotating shaft seat 2. The adjusting steering component 6 can adapt to the turning changes of the foot under pressure, so that the sole of the foot can better fit the stretching plate 8, and at the same time meet the conditions for left and right rotation.

[0046] Including a foot rehabilitation component 7, the stretching plate 8 is internally equipped with the foot rehabilitation component 7, which is used to simultaneously stimulate acupoints on the patient's feet and massage the feet to improve blood circulation. First, the exercise device base 1 is moved to the foot of the patient's bed. The doctor, according to the patient's own foot flexion range, controls the gear rocker groove 11 to raise and lower the foot within the rack limit seat 10. After adjusting the highest climbing position of the elastic telescopic rod 9 and adjusting the pressure inside the gas spring 12, the patient places their foot on the surface of the stretching plate 8 and their heel on the rubber pad in the heel groove 4, and then firmly attaches the Velcro. The foot tightens, and the sole of the foot plants forward forcefully. The rotating shaft seat 2 rotates, and the receiving plate 3 moves, driving the cushioning massage component 5 to operate. This cushions the force of the heel moving backward and rolls the bottom of the calf to promote blood flow. At the same time, the adjusting steering component 6 rotates, following the left and right rotation, inversion, eversion, plantar flexion, and dorsiflexion movements. While the foot exerts force, the stretching plate 8 rotates, and the gas spring 12 contracts, driving the foot rehabilitation component 7 to massage the patient's foot, promoting blood circulation, accelerating blood flow, and improving the rehabilitation cycle.

[0047] like Figure 4 and Figure 5As shown, the cushioning massage component 5 includes a sliding block 51, which is installed at the bottom of the receiving plate 3. Multiple sets of pulleys are provided on both sides of the sliding block 51, and the pulleys are slidably connected in the sliding groove of the base 1. When the receiving plate 3 moves, it drives the sliding block 51 to move. The multiple sets of pulleys on both sides of the sliding block 51 move in the sliding groove on the inner wall of the base 1, so that the device moves under force without affecting the bottom and causing the device to deviate.

[0048] like Figure 3 and Figure 4 As shown, a rack 52 is provided on the right side of the slide block 51, and a gear 53 is meshed with the surface of the rack 52. While the slide block 51 slides inside the base 1, the rack 52 moves the same distance, and the meshed gear 53 rotates at the same time.

[0049] like Figure 3 and Figure 5 As shown, a multi-segment connecting rod 54 is provided on one side of the gear 53, and multiple sets of the multi-segment connecting rod 54 are provided on both sides of the gear 53. A rubber wheel 55 is connected to the top of the multi-segment connecting rod 54. The multi-segment connecting rod 54 is composed of a paddle and an arc-shaped connecting rod, and the arc-shaped connecting rod is set in the groove on the inner wall of the receiving plate 3. When the gear 53 rotates, due to the multi-segment connecting rod 54 being set in the groove on the inner wall of the receiving plate 3, the gear 53 rotates on its own, driving the multi-segment connecting rod 54 to move up and down, so that the device can perform undulating motion. At the same time, it drives the rubber wheel 55 to act on the lower leg, promote blood circulation, and enhance the ankle joint experience.

[0050] like Figure 3 and Figure 4 As shown, a spring seat 56 is provided on the right side of the slide block 51. The other end of the spring seat 56 is fixed to the inner wall of the base 1. While the multi-segment connecting rod 54 moves up and down, the spring seat 56 acts on the slide block 51, so that it can maintain the spacing and quickly return to its position, improve the exercise effect, and avoid the phenomenon of loss of strength.

[0051] like Figure 1 and Figure 6 As shown, the adjustable steering assembly 6 includes an arc-shaped slide rail 61, which is installed on one side of the rotating shaft seat 2. An arc-shaped rack belt 62 is provided inside the arc-shaped slide rail 61. At the same time, while the tension plate 8 is operating, the arc-shaped slide rail 61 limits the movement direction of the arc-shaped rack belt 62, providing conditions for the ankle joint to perform plantar flexion and dorsiflexion while turning left and right.

[0052] like Figure 6 and Figure 7As shown, a gear seat 63 is meshed with the surface of the arc-shaped rack belt 62, and a rotating shaft 64 is mounted on the surface of the gear seat 63. The other end of the rotating shaft 64 is connected to the bottom of the stretching plate 8. The rotating shafts on both sides of the gear seat 63 slide inside the arc-shaped slide rail 61. While the left side of the rotating shaft 64 is fixedly connected to the gear seat 63, the top of the rotating shaft 64 can rotate 270 degrees. When the stretching plate 8 turns, it is subjected to the action of the meshing arc-shaped rack belt 62, causing the gear seat 63 and the connected rotating shaft 64 to move in an arc. At the same time, the ability of the rotating shaft 64 to rotate 270 degrees allows the stretching plate 8 to rotate along with the foot when it is rotated under the force, increasing the degree of foot contact and improving the beneficial effect of exercise.

[0053] like Figure 2 and Figure 3 As shown, the foot rehabilitation component 7 includes a piston sleeve 71, which is installed on the top of the gas spring 12. When the tension plate 8 is subjected to force and moves, the gas spring 12 contracts and moves, driving the piston sleeve 71 to move.

[0054] like Figure 9 As shown, a segmented adjusting rod 72 is provided on one side of the piston sleeve 71, and an elastic bracket 73 is provided at the top of the segmented adjusting rod 72. A protrusion is provided at the top of the segmented adjusting rod 72 and rollers are provided on both sides. The protrusion supports the bottom of the spring of the elastic bracket 73. The rollers on both sides of the segmented adjusting rod 72 are installed on the inner wall of the tension plate 8. When the piston sleeve 71 moves, the two sides of the segmented adjusting rod 72 are fixed to the inner wall of the tension plate 8. The segmented adjusting rod 72 rotates, causing the elastic bracket 73 to contract under the action of the internal spring.

[0055] like Figure 10 As shown, the top of the elastic support 73 is provided with a massage hammer 74. The surface of the massage hammer 74 is provided with multiple sets of protrusions. When the elastic support 73 performs a contraction movement, the massage hammer 74 at the top performs a sudden contraction movement on the sole of the foot, promoting blood circulation in the sole of the foot and preventing the formation of venous thrombosis.

[0056] The working principle of the technical solution of this invention:

[0057] First, the exercise device base 1 is moved to the foot of the patient's bed. The doctor, based on the patient's own foot flexion range, controls the gear rocker groove 11 to raise and lower the device within the rack limit seat 10. After adjusting the highest climbing position of the elastic telescopic rod 9 and the internal pressure of the gas spring 12, the patient places their foot on the surface of the stretching plate 8 and their heel on the rubber pad in the heel groove 4. The Velcro is then firmly attached to the foot and tightened. The patient plants their foot forward forcefully, rotating the shaft seat 2. This causes the receiving plate 3 to move, driving the cushioning massage component 5 to operate, cushioning the force of the heel moving backward and rolling the bottom of the calf to promote blood flow. Simultaneously, the steering component 6 is adjusted to rotate, following the left and right rotation, inversion, eversion, plantar flexion, and dorsiflexion movements. As the foot exerts force, the stretching plate 8 rotates, and the gas spring 12 contracts, driving the foot rehabilitation component 7 to massage the patient's foot, promoting blood circulation, accelerating blood flow, and extending the rehabilitation period.

[0058] The movement of the receiving plate 3 drives the sliding block 51 to move. Multiple sets of pulleys on both sides of the sliding block 51 move within the grooves on the inner wall of the base 1, allowing the device to move under force without affecting the bottom and causing deviation. As the sliding block 51 slides inside the base 1, the rack 52 moves the same distance, and the meshing gear 53 rotates. When the gear 53 rotates, it is affected by the multi-segment connecting rod 54 located in the groove on the inner wall of the receiving plate 3. The gear 53 rotates, driving the multi-segment connecting rod 54 to move up and down, causing the device to move in an undulating motion. This causes the rubber wheel 55 to act on the lower leg, promoting blood circulation and enhancing the ankle joint's sensation. As the multi-segment connecting rod 54 moves up and down, the spring seat 56 acts on the sliding block 51, allowing it to maintain its spacing and quickly return to its original position, improving the exercise effect and preventing the phenomenon of loss of strength.

[0059] While the stretching plate 8 is in operation, the arc-shaped slide rail 61 limits the movement direction of the arc-shaped rack belt 62, providing conditions for the ankle joint to perform plantar flexion and dorsiflexion while also allowing for left and right turning. As the stretching plate 8 turns, the meshing arc-shaped rack belt 62 causes the gear seat 63 and the connected rotating shaft 64 to move in an arc. At the same time, the rotating shaft 64's ability to rotate 270 degrees allows the stretching plate 8 to rotate along with the foot as it is subjected to force and rotates, increasing the degree of foot contact and enhancing the beneficial effects of exercise.

[0060] When the tension plate 8 is moved under force, the gas spring 12 contracts and moves, causing the piston sleeve 71 to move. Simultaneously, the segmented adjusting rod 72, fixed to the inner wall of the tension plate 8 on both sides, rotates, causing the elastic support 73 to contract under the action of the internal spring. When the elastic support 73 contracts, the massage hammer 74 at the top performs a sudden contraction motion on the sole of the foot, rolling and thrusting to promote blood circulation, improve exercise effectiveness, and provide a unique exercise experience. Furthermore, while under force and without other exercises, it increases the activity level of the lower limbs, promotes blood circulation, increases the rotation angle of foot movements, enhances exercise effectiveness, increases patient interest in exercise, accelerates the recovery period, prevents venous thrombosis, and reduces the workload of medical staff.

[0061] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0062] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A bed-assisted ankle joint exercise device for preventing venous thrombosis, characterized in that, include: The base has a rotating shaft seat 1 and a rotating shaft seat 2 installed on its top. A support plate is placed on top of the base, and a heel groove is installed on the top of the support plate. A tension plate is provided at one end of the rotating shaft seat 1, and an elastic telescopic rod is provided at the bottom back of the tension plate. A rack and pinion seat is provided at the top right side of the base, and a gear rocker groove is meshed inside the rack and pinion seat. A gas spring is provided at the top back of the tension plate, and the other end of the gas spring is connected to one side of the rotating shaft seat 2. A cushioning massage component is located inside the base. The cushioning massage component can adapt to the backward movement of the heel, so that the sole plate can better fit the stretching plate, while massaging and promoting blood circulation in the calf. The adjustable steering component is located on the right side of the rotating shaft seat. The adjustable steering component adapts to the changes in steering force exerted by the foot, so that the sole of the foot can better fit the stretching plate, while also satisfying the conditions for left and right rotation. A foot rehabilitation component, wherein the foot rehabilitation component is disposed inside a tension plate, and the foot rehabilitation component is used to simultaneously stimulate acupoints on the patient's feet and massage the feet to improve blood circulation. The cushioning massage assembly includes a sliding block, which is installed at the bottom of the receiving plate; Multiple sets of pulleys are provided on both sides of the slide block, and the pulleys are slidably connected in the slide groove of the base; A rack is provided on the right side of the slide block, and a gear is meshed with the surface of the rack; The gear has a multi-segment connecting rod on one side, and there are multiple sets of the multi-segment connecting rod located on both sides of the gear. The top of the multi-segment connecting rod is connected to a rubber wheel. The multi-segment connecting rod consists of a lever and an arc-shaped connecting rod, with the arc-shaped connecting rod positioned within a groove on the inner wall of the receiving plate. A spring seat is provided on the right side of the slide block, and the other end of the spring seat is fixed to the inner wall of the base.

2. The bedside ankle joint assistive exercise mechanism for preventing venous thrombosis according to claim 1, characterized in that, The adjustable steering assembly includes an arc-shaped slide rail, which is mounted on one side of the rotating shaft seat, and an arc-shaped rack and pinion belt is provided inside the arc-shaped slide rail.

3. The bedside ankle joint assistive exercise mechanism for preventing venous thrombosis according to claim 2, characterized in that, The surface of the arc-shaped rack belt is meshed with a gear seat, and a rotating shaft is mounted on the surface of the gear seat. The other end of the rotating shaft is connected to the bottom of the tension plate. The two rotating shafts on both sides of the gear seat slide inside the arc-shaped slide rail. While the left side of the rotating shaft rod is fixedly connected to the gear seat, the top of the rotating shaft rod can rotate 270 degrees.

4. The bedside ankle joint assistive exercise mechanism for preventing venous thrombosis according to claim 3, characterized in that, The foot rehabilitation assembly includes a piston sleeve mounted on top of a gas spring.

5. The bedside ankle joint assistive exercise mechanism for preventing venous thrombosis according to claim 4, characterized in that, A segmented adjusting rod is provided on one side of the piston sleeve, and a spring bracket is provided at the top of the segmented adjusting rod. The segmented adjusting rod has a protrusion at the top and rollers on both sides. The protrusion supports the bottom of the spring of the elastic bracket, and the rollers on both sides of the segmented adjusting rod are installed on the inner wall of the tension plate.

6. The bedside ankle joint assistive exercise mechanism for preventing venous thrombosis according to claim 5, characterized in that, The top of the elastic support is provided with a massage hammer, and the surface of the massage hammer is provided with multiple sets of protrusions.

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