Lower limb rehabilitation exercise device with anti-thrombosis function

Abstract

The utility model relates to rehabilitation equipment technical field, concretely is a kind of lower limb rehabilitation exercise device with antithrombotic function, including thigh cover and calf cover, and the thigh cover and the calf cover are rotatably connected by connecting shaft, water bag holding bag and inflatable bag are installed in proper order on the calf cover, the end of calf cover is installed with foot cover, and the bottom end of foot cover is rotatably connected with one end of calf cover by rotating shaft, and the bottom of calf cover is installed with moving frame, and the bottom of thigh cover is installed with rotating rod.In the lower limb rehabilitation exercise device with antithrombotic function, thigh muscle is electrically stimulated by electric stimulation piece, can effectively promote leg blood circulation, the device can enhance blood flow from nerve muscle layer, reduce thrombosis risk;Inflatable bag and inflatable layer inside the inside of foot cover can be adjusted pressure by external air pump, and intermittent pressure massage is carried out to leg, simulate healthy human lower limb venous blood pumping mechanism, further improve the effect of preventing thrombus.

Description

Technical Field

[0001] This utility model relates to the field of rehabilitation equipment technology, specifically to a lower limb rehabilitation exercise device with anti-thrombotic function. Background Technology

[0002] In the field of rehabilitation equipment technology, lower limb rehabilitation exercises play a crucial role in the physical recovery of patients who are bedridden for extended periods, have undergone surgery, or are injured. Preventing lower limb thrombosis is an important aspect of the rehabilitation process. Currently, lower limb rehabilitation exercise devices on the market have relatively limited functions, making it difficult to meet the diverse rehabilitation needs of patients. For example, patent CN113181005B, entitled "An Exercise Device for Preventing Deep Vein Thrombosis of the Lower Limbs," mainly uses a lead screw advance motor to control four telescopic lead screws, prompting a heel limiting component to drive the patient's foot in ankle rotation movements to prevent lower limb thrombosis. However, this device only has a single mechanical movement function and lacks other ways to stimulate the patient's leg muscles, thus limiting its effectiveness in promoting blood circulation. Similarly, patent CN111821655B, entitled "A Multifunctional Ankle Pump Trainer and Its Training Method," although it sets different movement tracks to achieve foot swing training, also has a relatively simple function, not involving electrical stimulation or pressure regulation of the legs, and cannot promote patient rehabilitation from multiple dimensions. Utility Model Content

[0003] The purpose of this invention is to provide a lower limb rehabilitation exercise device with anti-thrombotic function, in order to solve the problem mentioned in the background art that the function is relatively simple and does not involve functions such as electrical stimulation and pressure regulation of the legs, and cannot promote patient rehabilitation from multiple dimensions.

[0004] To achieve the above objectives, this utility model provides a lower limb rehabilitation exercise device with anti-thrombotic function, including a thigh sleeve and a calf sleeve, which are rotatably connected by a connecting shaft. A water bag and an air bladder are sequentially installed on the calf sleeve. A foot sleeve is installed at one end of the calf sleeve, and the bottom end of the foot sleeve is rotatably connected to one end of the calf sleeve by a rotating shaft. A movable frame is installed at the bottom of the calf sleeve, and a rotating rod is installed at the bottom of the thigh sleeve.

[0005] This setup achieves a rotating connection between the thigh sleeve and the calf sleeve via a connecting shaft. Combined with the movement frame and rotating rod, and driven by a screw slide, it can simulate the natural knee flexion and extension movements of the human body. The water bag and inflatable bladder provide hot and cold physical stimulation and pressure massage functions, respectively.

[0006] Preferably, the thigh sleeve is equipped with an electrical stimulation pad for electrically stimulating the leg.

[0007] This setting uses an electrical stimulation patch to stimulate the contraction and relaxation of the thigh muscles by releasing electrical pulses of a specific frequency.

[0008] Preferably, the thigh sleeve and the calf sleeve are connected by a soft pad, so that the relative rotation between the thigh sleeve and the calf sleeve will not interfere.

[0009] This feature uses a highly elastic material for the cushion, which ensures flexibility of rotation while dispersing contact pressure.

[0010] Preferably, a water bag is placed inside the water bag placement bag, and the air bladder is inflated by an external air pump.

[0011] This feature allows the water bag to be filled with liquids of different temperatures, and the air bladder is inflated and deflated periodically via an air pump. Preferably, the calf sleeve is fitted with a measuring tape for measuring leg circumference on its outer side.

[0012] This device uses a flexible measuring tape with markings to measure changes in calf circumference in real time.

[0013] Preferably, the rotating shaft is driven to rotate by a servo motor, and the foot cover and the calf cover are connected by an elastic connecting strap.

[0014] This feature allows the servo motor to precisely control the rotation angle and speed of the rotating shaft, while the elastic connecting belt provides cushioning and rebound force.

[0015] Preferably, an inflatable layer is installed on the inner side of the foot cover, and the inflatable layer is inflated by an external air pump.

[0016] This feature features an inflatable layer that uses an air pump to regulate internal air pressure, conforming to different foot shapes and providing pressure stimulation.

[0017] Preferably, the bottom end of the movable frame is driven to move linearly by a lead screw slide, and the bottom end of the rotating rod is rotatably connected to one end of the housing of the lead screw slide by a pin.

[0018] This configuration converts rotary motion into linear motion using a lead screw slide, which drives the moving frame to reciprocate the lower leg sleeve. The rotating rod provides the pivot point for rotation.

[0019] The movable frame includes two vertical rods. The upper ends of the vertical rods are installed on the side of the lower leg sleeve. The bottom ends of the vertical rods are connected and fixed to each other by a crossbar. A slider is rotatably connected to the middle of the crossbar by a bearing. A threaded hole is opened in the middle of the slider. The slider is driven to move linearly by a lead screw slide.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: In this lower limb rehabilitation exercise device with anti-thrombotic function, the anti-thrombotic function is achieved by using electrical stimulation pads to electrically stimulate the thigh muscles, which can effectively promote blood circulation in the legs. Compared with existing devices that rely solely on mechanical movement, such as the patent with publication number CN113181005B, this device can enhance blood flow at the neuromuscular level and reduce the risk of thrombosis. At the same time, the air bladder and the air layer inside the foot cover can be pressure-adjusted by an external air pump to provide intermittent pressure massage to the legs, simulating the venous pumping mechanism of healthy human lower limbs, further enhancing the effect of preventing thrombosis. In terms of rehabilitation exercises, the rotating connection between the calf sleeves, foot sleeves, and thigh sleeves, combined with the linear motion of the moving frame driven by the screw slide and the rotation of the rotating rod, can simulate the natural movement trajectory of the human lower limbs. Compared with the single swing training device with publication number CN111821655B, this device can achieve more comprehensive and realistic rehabilitation exercises, helping patients restore lower limb muscle strength and joint mobility. In addition, the water bag placement bag can hold water bags of different temperatures, using hot and cold stimulation to improve local blood circulation and meet the diverse rehabilitation needs of patients. In terms of user experience and functional integration, the soft padding design between the thigh and calf sleeves ensures smooth relative rotation, avoiding interference and discomfort for the patient. The measuring strap on the outside of the calf sleeve facilitates real-time measurement of leg circumference, providing data support for rehabilitation progress assessment. The elastic connecting strap between the foot sleeve and calf sleeve enhances overall stability and comfort. This device integrates multiple functions, promoting patient rehabilitation from multiple dimensions such as mechanical movement, electrical stimulation, pressure regulation, and physical hot and cold stimulation, greatly improving the efficiency and effectiveness of rehabilitation exercises and providing a better solution for lower limb rehabilitation treatment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the foot cover in this utility model; Figure 3 This is a schematic diagram of the structure of the movable frame in this utility model; The meanings of the labels in the diagram are as follows: 1. Thigh sleeve; 11. Electrical stimulation pad; 12. Connecting shaft; 13. Soft pad; 2. Lower leg sleeve; 21. Water bag placement bag; 22. Inflatable bladder; 23. Measuring tape; 3. Foot sleeve; 31. Rotating shaft; 32. Elastic connecting belt; 33. Inflatable layer; 4. Screw slide; 5. Moving frame; 51. Vertical rod; 52. Horizontal rod; 53. Slider; 6. Rotating rod. 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] This utility model provides a lower limb rehabilitation exercise device with anti-thrombotic function, such as Figure 1 As shown, it includes a thigh sleeve 1 and a calf sleeve 2, which are rotatably connected by a connecting shaft 12. A water bag 21 and an inflatable bladder 22 are installed on the calf sleeve 2 in sequence. A foot sleeve 3 is installed at the end of the calf sleeve 2. The bottom end of the foot sleeve 3 is rotatably connected to one end of the calf sleeve 2 by a rotating shaft 31. A movable frame 5 is installed at the bottom of the calf sleeve 2, and a rotating rod 6 is installed at the bottom of the thigh sleeve 1.

[0024] The thigh sleeve 1 and calf sleeve 2 are rotatably connected by a connecting shaft 12, allowing for relative rotation between the two to simulate the flexion and extension movements of the human knee joint. The movable frame 5 mounted at the bottom of the calf sleeve 2 and the rotating rod 6 at the bottom of the thigh sleeve 1, driven by a screw slide 4, enable the lower limbs to perform a complex movement of forward and backward movement and rotation. The water bag 21 on the calf sleeve 2 can hold water bags of different temperatures, providing hot and cold stimulation. The inflatable bladder 22 is inflated by an external air pump, providing pressure massage to the calf. The foot sleeve 3 is rotatably connected to the calf sleeve 2 via a rotating shaft 31, simulating ankle joint rotation. Compared to existing single-function devices such as CN113181005B, this device achieves more complex lower limb movement trajectories through the linkage of multiple structures, including the connecting shaft 12, movable frame 5, and rotating rod 6. Combining the hot and cold stimulation of the water bag 21 with the pressure massage of the inflatable bladder 22, it promotes blood circulation from both mechanical and physical regulation perspectives, resulting in a more significant effect in preventing thrombosis.

[0025] In this embodiment, as Figure 1 As shown, the thigh sleeve 1 is equipped with an electrical stimulation pad 11 for electrically stimulating the leg.

[0026] The electrical stimulation pad 11 installed on the thigh sleeve 1 stimulates the thigh muscles to contract and relax by releasing electrical pulses of a specific frequency, thus promoting muscle movement. This compensates for the lack of neuromuscular stimulation in existing devices. The electrical stimulation pad 11 enhances muscle activity, effectively preventing muscle atrophy caused by prolonged bed rest. In synergy with mechanical movement and pressure massage, it improves the anti-thrombotic effect.

[0027] Specifically, such as Figure 1 As shown, the thigh sleeve 1 and the calf sleeve 2 are connected by a soft pad 13, which facilitates relative rotation between the thigh sleeve 1 and the calf sleeve 2 without interference.

[0028] The thigh sleeve 1 and the calf sleeve 2 are connected by a soft pad 13. The soft pad 13 is made of a highly elastic material, which ensures the relative rotational flexibility of the two while dispersing contact pressure and reducing friction. This solves the problem of friction and pressure at the joint connection of existing devices, significantly improving patient comfort, and is especially suitable for long-term rehabilitation training needs.

[0029] Furthermore, such as Figure 1 As shown, a water bag is placed inside the water bag placement bag 21, and an air pump is connected to the air bladder 22 for inflation.

[0030] The water bag 21 contains a water bag that can be filled with liquids of different temperatures to provide alternating hot and cold stimulation to the calves. The air bladder 22 is connected to an external air pump for inflation, and the periodic inflation and deflation provide pressure massage to the calves. The alternating hot and cold stimulation can dilate and constrict blood vessels, further promoting blood circulation. The pressure massage of the air bladder 22 simulates the venous pumping mechanism. The combination of these two features significantly improves the efficiency of thrombosis prevention, which is superior to existing single-function designs.

[0031] Furthermore, such as Figure 1 As shown, a measuring tape 23 for measuring leg circumference is fitted on the outer side of the calf sleeve 2.

[0032] The measuring strap 23, fitted on the outer side of the calf sleeve 2, is made of elastic material and marked with graduations. It allows for real-time measurement of calf circumference changes as the calf muscles change. This provides objective data support for the rehabilitation process, facilitating adjustments to treatment plans by doctors and solving the problem of existing devices being unable to monitor rehabilitation effectiveness in real time.

[0033] Furthermore, such as Figure 1 As shown, the rotating shaft 31 is driven to rotate by a servo motor, and the foot sleeve 3 and the calf sleeve 2 are connected by an elastic connecting belt 32.

[0034] The rotating shaft 31 is driven by a servo motor to precisely control the rotation angle and speed of the foot sleeve 3. The foot sleeve 3 is connected to the calf sleeve 2 by an elastic connecting strap 32, which provides cushioning and rebound force. This allows the foot sleeve 3 to rotate at multiple angles, simulating the natural movement trajectory of the ankle joint. Combined with the auxiliary force of the elastic connecting strap 32, it enhances the pertinence and effectiveness of rehabilitation training, which is superior to the single swing mode of CN111821655B.

[0035] Furthermore, such as Figure 2 As shown, an inflatable layer 33 is installed on the inner side of the foot cover 3, and an air pump is connected to the inflatable layer 33 for inflation.

[0036] The inflatable layer 33 installed on the inner side of the foot cover 3 is inflated by an external air pump. By adjusting the internal air pressure, it conforms to different foot shapes and provides pressure stimulation. While improving wearing comfort, it provides pressure massage to the feet, promotes blood circulation in the feet, and works in conjunction with the calf air bladder 22 to form a complete lower limb pressure circulation system.

[0037] Furthermore, such as Figure 1 As shown, the bottom end of the movable frame 5 is driven to move linearly by the lead screw slide 4, and the bottom end of the rotating rod 6 is rotatably connected to one end of the outer shell of the lead screw slide 4 through a pin.

[0038] Furthermore, such as Figure 3 As shown, the movable frame 5 includes two vertical rods 51. The upper ends of the vertical rods 51 are installed on the side of the lower leg sleeve 2. The bottom ends of the vertical rods 51 are connected and fixed by a horizontal rod 52. The middle part of the horizontal rod 52 is rotatably connected to a slider 53 through a bearing. The middle part of the slider 53 has a threaded hole. The slider 53 is driven to perform linear motion by a lead screw slide table 4.

[0039] The bottom of the movable frame 5 is driven by a lead screw slide 4 to perform linear motion. The movable frame 5 includes two vertical rods 51, the upper ends of which are mounted on the side of the calf sleeve 2, and the bottom ends are connected and fixed by a horizontal rod 52. The middle part of the horizontal rod 52 is rotatably connected to a slider 53 via a bearing, which cooperates with the lead screw slide 4. The bottom end of the rotating rod 6 is rotatably connected to one end of the housing of the lead screw slide 4 via a pin. The lead screw slide 4 converts rotational motion into linear motion, driving the movable frame 5 to move the calf sleeve 2 in reciprocating motion. The rotating rod 6 provides a pivot point for rotation, realizing the linkage motion between the thigh and the calf. This linkage motion between the thigh and the calf simulates the real gait cycle, providing patients with a more natural and efficient rehabilitation training mode, and significantly improving the recovery effect of lower limb motor function.

[0040] When using this lower limb rehabilitation exercise device with anti-thrombotic function, the patient first puts on the thigh sleeve 1 on the thigh, the calf sleeve 2 on the calf, and the foot sleeve 3 on the foot. At this time, by adjusting the air pump connected to the air pump on the inner air layer 33 of the foot sleeve 3 and the air bladder 22 on the calf sleeve 2, the air pressure is adjusted according to the patient's needs, so that the air layer 33 fits the shape of the foot, and the air bladder 22 applies appropriate pressure to the calf, preparing for subsequent pressure massage; at the same time, a water bag containing liquid at a suitable temperature is placed in the water bag placement bag 21 to provide hot and cold stimulation. The lead screw slide 4 is activated, which converts rotational motion into linear motion, driving the moving frame 5 to move linearly. The two vertical rods 51 of the moving frame 5 are connected to the calf sleeve 2, thereby driving the calf sleeve 2 to move; the bottom end of the rotating rod 6 is rotatably connected to the outer shell of the lead screw slide 4 through a pin. When the moving frame 5 moves, the rotating rod 6 rotates around the pin as the fulcrum, cooperating with the connecting shaft 12 to make the thigh sleeve 1 and the calf sleeve 2 rotate relative to each other, simulating the flexion and extension of the human knee joint, and realizing the compound movement of the lower limbs forward and backward movement and rotation. At the same time, the servo motor drives the rotating shaft 31 to rotate, precisely controlling the rotation angle and speed of the foot cover 3 to simulate the rotation of the ankle joint. The elastic connecting strap 32 provides cushioning and rebound force to ensure smooth rotation. During exercise, the electrical stimulation pad 11 on the thigh sleeve 1 releases electrical pulses of a specific frequency to stimulate the contraction and relaxation of the thigh muscles and enhance muscle activity; the water bag in the water bag placement bag 21 provides hot and cold stimulation to the calf, expanding and contracting blood vessels; the air bag 22 and the air layer 33 on the inside of the foot sleeve 3 provide pressure massage to the calf and foot through periodic inflation and deflation, simulating the venous pumping mechanism. The measuring tape 23 on the outer side of the calf sleeve 2 measures the changes in calf circumference in real time and feeds the data back to the medical staff. Based on the rehabilitation progress, the medical staff optimizes the rehabilitation training program by adjusting the motion parameters of the screw slide 4, the electrical pulse frequency of the electrical stimulation pad 11, the air pressure of the air bag 22 and the air layer 33, and the temperature of the water bag, to ensure the best rehabilitation effect.

[0041] Finally, it should be noted that the electronic components in the lead screw slide 4 and other components in this embodiment are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components are connected by wires. The specific connection method should refer to the working order between each electrical component in the above working principle to complete the electrical connection. All of these are technologies known in the art.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lower limb rehabilitation exercise device with anti-thrombotic function, comprising a thigh sleeve (1) and a calf sleeve (2), characterized in that: The thigh sleeve (1) and the calf sleeve (2) are rotatably connected by a connecting shaft (12). A water bag (21) and an air bladder (22) are installed on the calf sleeve (2) in sequence. A foot sleeve (3) is installed at the end of the calf sleeve (2). The bottom end of the foot sleeve (3) is rotatably connected to one end of the calf sleeve (2) through a rotating shaft (31). A movable frame (5) is installed at the bottom of the calf sleeve (2). A rotating rod (6) is installed at the bottom of the thigh sleeve (1).

2. The lower limb rehabilitation exercise device with anti-thrombotic function according to claim 1, characterized in that: The thigh sleeve (1) is equipped with an electrical stimulation pad (11) for electrically stimulating the leg.

3. The lower limb rehabilitation exercise device with anti-thrombotic function according to claim 1, characterized in that: The thigh sleeve (1) and the calf sleeve (2) are connected by a soft pad (13) so that the relative rotation between the thigh sleeve (1) and the calf sleeve (2) will not interfere.

4. The lower limb rehabilitation exercise device with anti-thrombotic function according to claim 1, characterized in that: The water bag is placed inside the water bag placement bag (21), and the air bag (22) is inflated by an external air pump.

5. The lower limb rehabilitation exercise device with anti-thrombotic function according to claim 1, characterized in that: The calf sleeve (2) is fitted with a measuring tape (23) for measuring leg circumference on the outside.

6. The lower limb rehabilitation exercise device with anti-thrombotic function according to claim 1, characterized in that: The rotating shaft (31) is driven to rotate by a servo motor, and the foot cover (3) and the calf cover (2) are connected by an elastic connecting strap (32).

7. The lower limb rehabilitation exercise device with anti-thrombotic function according to claim 1, characterized in that: An inflatable layer (33) is installed on the inner side of the foot cover (3), and the inflatable layer (33) is inflated by an external air pump.

8. The lower limb rehabilitation exercise device with anti-thrombotic function according to claim 1, characterized in that: The bottom end of the movable frame (5) is driven to move linearly by the lead screw slide (4), and the bottom end of the rotating rod (6) is rotatably connected to one end of the outer shell of the lead screw slide (4) by a pin.

9. The lower limb rehabilitation exercise device with anti-thrombotic function according to claim 8, characterized in that: The movable frame (5) includes two vertical rods (51). The upper ends of the vertical rods (51) are installed on the side of the lower leg sleeve (2). The bottom ends of the vertical rods (51) are connected and fixed by a crossbar (52). The middle part of the crossbar (52) is rotatably connected to a slider (53) through a bearing. The middle part of the slider (53) has a threaded hole. The slider (53) is driven to perform linear motion by a lead screw slide (4).

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