Exercise device for preventing lower limb thrombus caused by coronary heart disease

Abstract

The invention discloses a movement device for preventing coronary heart disease lower limb thrombus in the field of medical instruments. The movement device comprises a collection unit, a lower limb training mechanism and a control unit. The acquisition unit is used for acquiring physiological parameters of a patient; the lower limb training mechanism is used for assisting the patient in completing lower limb training movement; the control unit is used for judging the current physical state of the patient based on the physiological parameters and adjusting the operation power of the lower limb training mechanism. According to the scheme, the physical state of a user can be monitored in real time, the strength is automatically adjusted, and it is ensured that blood circulation can be effectively promoted without causing injuries.

Description

Technical Field

[0001] The present invention belongs to the field of medical devices, and in particular is an exercise device for preventing lower limb thrombosis caused by coronary heart disease. Background Art

[0002] When it comes to preventing lower limb thrombosis in coronary heart disease, traditional methods mainly rely on drug therapy and physical therapy. Drug therapy usually includes the use of anticoagulants and antiplatelet drugs, while physical therapy includes regular lower limb exercises and massage. However, these traditional methods have many shortcomings. First, drug therapy may bring side effects, such as an increased risk of bleeding, and requires long-term medication, which leads to poor patient compliance. Second, the effectiveness of physical therapy depends on the patient's self-consciousness and execution ability, and it is difficult to implement for patients with limited mobility, making it difficult to ensure sustained and effective preventive effects.

[0003] In response to the above-mentioned problems, patent technologies in recent years have attempted to assist in preventing lower limb thrombosis through mechanical devices. For example, the patent with authorization announcement number CN215229893U discloses an exercise device for preventing lower limb thrombosis in coronary heart disease, including a frame plate, a placement plate, an end plate, a first guide groove, an engaging guide bar, a limit bar plate, a second guide groove, a movable end bar, a rotating shaft frame and a pedal. The device uses alternating pedaling to make the movable end bar and the engaging guide bar move along the guide groove respectively, and return under the action of a compression spring, completing the flexion training of the lower limbs and joints, and at the same time, the patient's ankle can be exercised by ankle flipping. However, the function of this device is relatively simple, mainly focusing on flexion training of the lower limbs and ankles, and it is difficult to meet the comprehensive training of lower limb muscle strength and other joint exercise needs. It also has a narrow scope of application and is of limited use for patients who have completely lost the ability to move independently. It lacks personalized adjustment capabilities and cannot flexibly adjust the intensity and method of exercise according to individual differences of patients.

[0004] In view of the defects of existing technologies, there is an urgent need for a new type of exercise device for preventing lower limb thrombosis in coronary heart disease, which can be adaptively adjusted according to the individual differences of users to improve the treatment effect of patients. Summary of the Invention

[0005] In order to solve the above problems, the purpose of the present invention is to provide an exercise device for preventing lower limb thrombosis caused by coronary heart disease, which can monitor the user's physical condition in real time and automatically adjust the strength to ensure that it can effectively promote blood circulation without causing damage.

[0006] In order to achieve the above object, the technical solution of the present invention is as follows:

[0007] An exercise device for preventing lower limb thrombosis in coronary heart disease includes a collection unit, a lower limb training mechanism and a control unit; the collection unit is used to collect the patient's physiological parameters; the lower limb training mechanism is used to assist the patient in completing lower limb training exercises; the control unit is used to judge the patient's current physical condition based on the physiological parameters and adjust the operating power of the lower limb training mechanism.

[0008] The above scheme has the following beneficial effects:

[0009] 1. This program can flexibly adjust the exercise intensity according to individual differences of patients, meet the needs of different patients for lower limb muscle strength and joint exercise intensity, and improve patient compliance and participation in treatment.

[0010] 2. This solution uses real-time monitoring of the body's condition to allow the device to accurately determine the suitability of exercise. Once a situation that may threaten the patient's safety occurs, such as vascular abnormalities, the device will automatically adjust the intensity to ensure that the exercise is both effective and safe, effectively preventing cardiovascular risks that may occur during exercise and providing patients with all-round safety protection.

[0011] 3. This program is not only suitable for patients with a certain degree of autonomous movement ability to provide auxiliary exercise, but can also be effective for patients who have completely lost the ability to move independently. It drives lower limb activities through passive movement patterns, promotes blood circulation, prevents thrombosis, and expands the scope of applicable populations.

[0012] Furthermore, physiological parameters include but are not limited to blood oxygen saturation, blood flow velocity, and heart rate.

[0013] Beneficial effects: By collecting key physiological parameters such as blood oxygen saturation, blood flow velocity and heart rate in real time, the device can more comprehensively assess the patient's vascular status and circulatory health.

[0014] By monitoring blood oxygen saturation in real time, the device can accurately determine the blood oxygenation status of the lower limbs. When blood oxygen saturation decreases, it indicates that the lower limbs may be experiencing insufficient blood supply or oxygenation disorders. The device will automatically reduce exercise intensity to alleviate lower limb hypoxia.

[0015] Blood flow velocity is a key indicator of vascular patency. If blood flow is too slow, it may indicate vascular stenosis or blood stasis. The device will automatically increase exercise intensity, promoting blood flow through appropriate muscle contractions. For example, if blood flow falls below a set threshold, the device will increase exercise frequency and amplitude to enhance the pumping action of the lower limb muscles and improve blood flow.

[0016] Heart rate is a key indicator of cardiac stress. The device monitors heart rate in real time and automatically reduces exercise intensity when it exceeds a safe range to reduce cardiac stress.

[0017] Furthermore, the lower limb training mechanism includes a first carrier, on which a flexion and extension training unit and an ankle pump exercise unit are provided; the flexion and extension training unit is used to assist the patient's lower limbs to complete flexion and extension training; the ankle pump exercise unit is used to assist the patient's lower limbs to complete ankle pump exercise.

[0018] Beneficial Effects: Flexion and Extension Training Unit: Assists patients with flexion and extension exercises of the lower limbs, effectively improving knee and hip joint mobility. For patients who are bedridden or immobilized for long periods of time, the flexion and extension training unit can help maintain joint range of motion and prevent joint stiffness and contractures.

[0019] Ankle pump exercise unit: Ankle pump exercise is an important means of preventing lower extremity thrombosis. By simulating the ankle dorsiflexion and plantar flexion movements of normal walking, the ankle pump exercise unit can effectively promote venous return in the lower extremities, reduce blood stasis in the lower extremity veins, and reduce the risk of thrombosis.

[0020] Furthermore, the ankle pump motion unit includes a first driving member and a plurality of sealing grooves provided in a first carrier; the sealing grooves are arranged circumferentially with the center of the first driving member, pistons are slidably fitted in the sealing grooves, a connecting rod is provided at one end of the piston away from the first driving member, the other end of the connecting rod is spherically hinged to the second carrier, a transfer groove is provided at the spherical joint between the connecting rod and the second carrier, a ventilation pipe is provided in the connecting rod, and the ventilation pipe connects the sealing groove and the transfer groove;

[0021] An adjustment slot is provided in the second carrier, and both ends of the adjustment slot are respectively connected to any symmetrically distributed transfer slots therein. A trigger member is slidably fitted in the adjustment slot, and the trigger member is engaged with a gear, which is rotatably connected to the second carrier, and a pedal is provided axially of the gear;

[0022] A circumferential undulating mechanism is provided on the output shaft of the first driving member, and the circumferential undulating mechanism is used to drive the outer edge portion of the second carrier to perform undulating motion.

[0023] Beneficial Effects: The circumferential undulation mechanism drives the outer edge of the second carrier to perform undulating motion, simulating natural ankle joint movement patterns, including dorsiflexion and plantar flexion. When the second carrier moves, it drives the connecting rods to reciprocate sequentially. When the symmetrical connecting rods reciprocate, they drive the pistons to reciprocate and adjust the air pressure within the sealing groove, allowing the air in the sealing groove to enter the ventilation duct, transfer groove, and adjustment groove in sequence. This causes the air pressure at both ends of the trigger to continuously fluctuate, driving the trigger to reciprocate. The reciprocating movement of the trigger drives the reciprocating deflection of the gear, which in turn drives the reciprocating deflection of the pedal, thereby simulating the ankle's circular motion and further enhancing blood flow stimulation.

[0024] A circumferential undulation mechanism drives the outer edge of the second carrier in an undulating motion, simulating natural ankle joint movement patterns, including dorsiflexion, plantar flexion, and circumflexion. This multi-modal motion better aligns with human physiology and comprehensively exercises the muscles and ligaments surrounding the ankle joint. Compared to traditional single dorsiflexion and plantar flexion movements, this design adds circumflexion, making the ankle joint's movement more comprehensive and natural, enhancing exercise effectiveness.

[0025] Traditional single dorsiflexion and plantar flexion exercises can easily make patients feel monotonous and boring, reducing treatment compliance. However, this design adds a circular movement to make the exercise more diverse, increasing patient interest and enthusiasm.

[0026] Furthermore, the circumferential undulation mechanism includes a transmission shaft; the transmission shaft is coaxially fixedly connected to the output shaft of the first driving member, a crank is provided at the other end of the transmission shaft, the other end of the crank is rotatably connected to a rotating shaft, a third carrier is axially provided on the rotating shaft, and a plurality of pillars are circumferentially provided on the third carrier, and the pillars are respectively fixedly connected to the second carrier.

[0027] Beneficial effect: The output shaft of the first driving member drives the transmission shaft to rotate, the rotation of the transmission shaft drives the crank to rotate, the rotation of the crank drives one end of the rotating shaft to perform circular motion around the other end of the rotating shaft (this point is a suspended fixed point), and then drives the third carrier, the pillar and the second carrier to move, so that the outer edge part of the second carrier performs circumferential undulating motion.

[0028] Furthermore, the flexion and extension training mechanism includes a slide groove opened on the top of the first carrier, a nut seat is slidably connected in the slide groove, a screw and a second driving member are arranged in the slide groove, the screw is threadedly engaged with the nut seat, one end of the screw is coaxially fixedly connected to the output shaft of the second driving member, and the other end of the screw is rotatably connected to the side wall of the slide groove, and the second driving member is used to drive the screw to rotate.

[0029] Benefits: The screw drive offers high repeatability and consistency, ensuring consistent angle and speed for each flexion and extension exercise, enhancing training effectiveness and safety. By adjusting the speed of the second drive element and the screw's rotation angle, the range and intensity of the flexion and extension exercise can be flexibly adjusted.

[0030] Furthermore, a foot binding mechanism is provided on both the foot pedal and the nut seat; the foot binding mechanism is used to prevent the foot from detaching during exercise.

[0031] Beneficial Effects: The foot binding mechanism effectively prevents accidental injuries caused by foot slippage or detachment during exercise. By securing the foot, the binding mechanism ensures the stability of the patient's lower limb during flexion, extension, and ankle pump movements, making movement smoother and more controllable, and improving treatment safety.

[0032] Furthermore, a foot massage mechanism is provided on the foot pedal; the foot massage mechanism includes a plurality of air pressure grooves opened in the foot pedal, each of which is slidably connected with a massage protrusion, and the air pressure grooves are respectively connected to the transfer grooves that are not connected to the adjustment groove.

[0033] Beneficial effects: The air pressure tank is connected to the transfer tank that is not connected to the regulating tank. When the air pressure in the transfer tank changes, the air pressure in the air pressure tank also changes accordingly. When the piston moves forward in the sealing groove, the air in the sealing groove is compressed and the air pressure increases. At this time, the air enters the air pressure tank through the ventilation duct and the transfer tank, causing the air pressure in the air pressure tank to increase. When the air pressure in the air pressure tank increases, the massage protrusions push outward under the action of the air pressure to press the acupuncture points on the soles of the patient's feet. When the piston moves backward in the sealing groove, the air in the sealing groove is sucked in and the air pressure decreases. At this time, the air in the air pressure tank is sucked into the sealing groove, and the air pressure in the air pressure tank decreases to generate negative pressure. The massage protrusions are retracted into the air pressure tank under the action of negative pressure and gravity, ready for the next massage.

[0034] The massage bumps periodically massage the acupuncture points on the soles of the feet, stimulating the blood vessels and nerves in the soles of the feet and promoting blood circulation in the feet and lower limbs. Through repeated pressure and relaxation, the blood vessels in the soles of the feet can expand and contract more effectively, accelerating blood flow, reducing blood stasis, and further reducing the risk of thrombosis.

[0035] Furthermore, the massage protrusions are arranged corresponding to the acupuncture points on the soles of the feet.

[0036] Beneficial effects: The massage bumps are positioned to correspond to acupuncture points on the soles of the feet, such as Yongquan, Kunlun, and Taixi, which are closely related to the internal organs and meridian systems of the human body in traditional Chinese medicine theory.

[0037] During exercise, the reciprocating motion of the piston causes the air pressure in the air pressure groove to fluctuate periodically, causing the massage protrusions to periodically rise and retract, compressing and relaxing the acupuncture points on the soles of the feet. This cyclical pressure of the massage protrusions on the acupuncture points on the soles of the feet stimulates the blood vessels and nerves in the soles of the feet, promoting blood circulation in the feet and lower limbs. This is especially effective for patients who are bedridden or have limited mobility, reducing blood stasis and the risk of thrombosis.

[0038] Furthermore, it also includes an alarm unit, which is used to send out an alarm signal; the alarm unit is electrically connected to the control unit.

[0039] Beneficial Effects: When an abnormality occurs, such as a sudden drop in a patient's blood oxygen saturation or an abnormally elevated heart rate, the alarm unit immediately emits audible and visual alarm signals, alerting medical staff or the patient to take timely action and avoid potential danger. This prompt feedback from the alarm unit helps ensure the continuity and effectiveness of treatment. Once an abnormality is detected, medical staff can quickly adjust treatment plans or repair equipment malfunctions, avoiding interruptions in treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic diagram of the exercise device for preventing lower limb thrombosis caused by coronary heart disease according to the present invention.

[0041] Figure 2 for Figure 1 Top view of an exercise device used to prevent lower limb thrombosis in patients with coronary heart disease.

[0042] Figure 3 for Figure 2 Cross-sectional view along the AA direction.

[0043] Figure 4 for Figure 3 A partial enlarged schematic diagram of point M in the middle.

[0044] Figure 5 for Figure 4 A local enlarged schematic diagram of point N in the middle.

[0045] Figure 6 for Figure 4 Schematic diagram of the three-dimensional structure of the mid-foot pedal.

[0046] Figure 7 for Figure 5 Schematic diagram of the internal structure of the second carrier.

[0047] Figure 8 This is a schematic diagram of the structure of the Tesla valve pipeline 2042 in Example 2 of the exercise device for preventing lower limb thrombosis caused by coronary heart disease of the present invention.

[0048] The figure marks in the drawings of the specification include: 1. first carrier; 2. foot pedal; 3. second carrier; 4. first driving member; 101. slide groove; 102. nut seat; 103. first strap; 104. screw; 105. second driving member; 106. sealing groove; 107. piston; 108. ventilation pipe; 109. connecting rod; 110. transmission shaft; 111. third carrier; 112. pillar; 113. crank; 114. rotating shaft; 201. second strap; 202. massage protrusion; 203. bellows; 204. air pressure groove; 301. transfer groove; 302. transfer channel; 303. ball head; 304. rack; 305. gear; 306. adjustment groove; 2041. first air collecting chamber; 2042. Tesla valve pipe; 2043. solenoid valve. DETAILED DESCRIPTION

[0049] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0050] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0051] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal communication between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0052] The following is further described in detail through specific implementation methods:

[0053] Example 1 is basically as shown in the attached Figure 1-Figure 7 The device is shown as an exercise device for preventing lower limb thrombosis in patients with coronary heart disease, comprising a data acquisition unit, a lower limb training mechanism, and a control unit. The data acquisition unit is used to collect physiological parameters of the patient, such as blood oxygen saturation, blood flow velocity, and heart rate. Specifically, in this embodiment, the data acquisition unit integrates a blood oxygen sensor, a Doppler ultrasound sensor, and a heart rate sensor to obtain real-time data on the patient's lower limb blood oxygen saturation (SpO2), dorsalis pedis artery blood flow velocity, and resting / exercise heart rate.

[0054] The lower limb training mechanism is primarily used to assist patients in completing lower limb training exercises. Specifically, the lower limb training mechanism includes a first carrier 1. In this embodiment, the first carrier 1 is a bed structure. In some other embodiments, the first carrier 1 may be a seat structure or other structure that supports the patient in completing training. The first carrier 1 is provided with a flexion and extension training unit and an ankle pump exercise unit; the flexion and extension training unit is used to assist the patient in completing flexion and extension training of the lower limbs; the ankle pump exercise unit is used to assist the patient in completing ankle pump exercises of the lower limbs.

[0055] Specifically, the ankle pump motion unit includes a first driving member 4 and a plurality of sealing grooves 106 provided in the first carrier 1. In this embodiment, the first driving member 4 is a DC motor, which is installed in the first carrier 1 (with a chamber for accommodating the DC motor) by bolts; the sealing grooves 106 are arranged circumferentially with the center of the first driving member 4. Preferably, in this embodiment, a total of four sealing grooves 106 are provided, corresponding to the four directions of up, down, left and right, respectively. A piston 107 is slidably fitted in the sealing grooves 106. Figure 6 As shown, the left end of the piston 107 is axially welded with a connecting rod 109, and the left end of the connecting rod 109 is spherically hinged with a second carrier 3. Specifically, in combination with the attached Figure 5 As shown, the second carrier 3 is disc-shaped, and a ball head 303 is integrally provided at the left end of the connecting rod 109. A spherical groove for accommodating the ball head 303 is opened in the second carrier 3. The connecting rod 109 and the second carrier 3 are connected by a ball joint through the ball head 303 and the spherical groove. In this embodiment, the spherical groove and the ball head 303 are specially treated (the surface of the ball head 303 is coated with a diamond-like carbon film, the inner wall of the spherical groove is implanted with a PTFE (polytetrafluoroethylene) microporous gasket, and lubricating oil is coated between the ball head 303 and the spherical groove). The shape of the ball head 303 and the spherical groove just fits the shape of the spherical groove (conformal surface design), that is, when the ball head 303 rotates in the spherical groove, the ball head 303 and the spherical groove remain sealed. The curvature radius tolerance is controlled at ±0.005mm (see GB / T1800.2-2020 tolerance standard) to ensure that the gap between the ball head 303 and the groove wall is ≤5μm at any rotation angle.

[0056] Transfer grooves 301 are provided at the ball joints of the connecting rod 109 and the second carrier 3 . Ventilation pipes 108 are provided in the connecting rod 109 . The ventilation pipes 108 connect the sealing groove 106 with the transfer groove 301 .

[0057] Combined with attachment Figure 5 and attached Figure 7 As shown, an adjustment groove 306 is provided in the second carrier 3, and the two ends of the adjustment groove 306 are respectively connected to any symmetrically distributed transfer groove 301 therein. Specifically, in this embodiment, the adjustment groove 306 is connected to the transfer groove 301 through the transfer channel 302. A trigger member is slidably engaged in the adjustment groove 306. Specifically, in this embodiment, the trigger member is a rack 304 structure, and the adjustment groove 306 is a long strip structure corresponding to the shape of the rack 304. In some other embodiments, the trigger member can be an incomplete ring gear structure, in which case the adjustment groove 306 corresponds to an arc-shaped structure. The trigger member is engaged with a gear 305, which is rotatably connected to the second carrier 3. The gear 305 is coaxially welded and fixed with the foot pedal 2, and the bottom of the foot pedal 2 is slidably engaged with the surface of the second carrier 3.

[0058] A circumferential undulating mechanism is provided on the output shaft of the first driving member 4 , and the circumferential undulating mechanism is used to drive the outer edge portion of the second carrier 3 to perform an undulating motion.

[0059] Specifically, combined with Figure 5 and attached Figure 6 As shown, the circumferential undulating mechanism includes a transmission shaft 110; the transmission shaft 110 is coaxially spline-connected and fixed with the output shaft of the first driving member 4, as shown in the attached Figure 4 As shown, the left end of the transmission shaft 110 passes through the first carrier 1 and extends to the outside. A crank 113 is welded and fixed to the left end of the transmission shaft 110. The other end of the crank 113 is rotatably connected to a rotating shaft 114. The rotating shaft 114 is axially welded and fixed to a third carrier 111. The third carrier 111 is also a disc structure. Several pillars 112 are circumferentially welded and fixed on the third carrier 111. The pillars 112 are respectively welded and fixed to the surface of the second carrier 3.

[0060] Specifically, the flexion and extension training mechanism includes a pair of slide grooves 101 opened at the top of the first carrier 1, and a nut seat 102 is slidably connected in the slide groove 101. A screw 104 and a second driving member 105 are provided in the slide groove 101. The screw 104 is threadedly engaged with the nut seat 102. One end of the screw 104 is coaxially fixedly connected to the output shaft of the second driving member 105 through a coupling, and the other end of the screw 104 is rotatably connected to the side wall of the slide groove 101. In this embodiment, the second driving member 105 is a stepper motor, which is installed in the side wall of the slide groove 101 by bolts, and the second driving member 105 is used to drive the screw 104 to rotate.

[0061] Preferably, both the foot pedal 2 and the nut seat 102 are provided with a foot binding mechanism; the foot binding mechanism is used to prevent the foot from detaching during exercise. In this embodiment, the foot binding mechanism is respectively a first strap 103 and a second strap 201. The first strap 103 and the second strap 201 are both made of elastic material. The first strap 103 is adhesively fixed to the top of the nut seat 102, and the second strap 201 is adhesively fixed to the top of the foot pedal 2 (the surface contacted by the patient's foot). Specifically, in this embodiment, the blood oxygen sensor, Doppler ultrasound sensor, and heart rate sensor of the acquisition unit are respectively embedded in the first strap 103 and the second strap 201 to specifically detect information in the dorsalis pedis artery area of ​​the patient. That is, when the patient performs lower limb flexion and extension training, the acquisition unit in the first strap 103 can monitor the patient's physiological parameters. When the patient performs ankle pump exercise training, the acquisition unit in the second strap 201 can also monitor physiological parameters.

[0062] Preferably, the foot pedal 2 is also provided with a foot massage mechanism; the foot massage mechanism includes a number of air pressure grooves 204 provided in the foot pedal 2, the air pressure grooves 204 respectively corresponding to the acupuncture point areas of the human foot, such as Yongquan acupoint, Kunlun acupoint, Taixi acupoint, etc., and the air pressure grooves 204 are slidably connected with massage protrusions 202, and the air pressure grooves 204 are respectively connected to the transfer grooves 301 that are not connected to the adjustment groove 306. Specifically, in this embodiment, there are four transfer grooves 301, which correspond to the sealing grooves 106 one by one. In this embodiment, the sealing grooves 106 in the four directions of up, down, left and right are named A, B, C, and D, and the corresponding transfer grooves 301 are named a, b, c, and d, respectively. Among them, A and B, C and D are symmetrical. When the pressure in A is positive (i.e., the pressure is attached to Figure 4 As shown, during the movement of piston 107 to the right, there is negative pressure in B (as shown in the attached Figure 4 As shown, when the piston 107 moves to the left), when C is positive pressure, D is negative pressure, and vice versa, and the above processes are all carried out simultaneously. In this embodiment, A and B are connected to both ends of the regulating tank 306 through the ventilation pipe 108-transfer tank 301 (a, b), and C and D are connected to each air pressure tank 204 through the ventilation pipe 108-transfer tank 301 (c, d). The communication paths between c and d and the air pressure tank 204 are respectively connected to the first air collecting chamber 2041 and the second air collecting chamber. The first air collecting chamber 2041 and the second air collecting chamber are both opened in the foot pedal 2. A part of the air pressure tank 204 in the foot pedal 2 is connected to the first air collecting chamber 2041, and the other part of the air pressure tank 204 is connected to the second air collecting chamber. The first air collecting chamber 2041 and the second air collecting chamber are connected to c and d respectively through the bellows 203. When the air flows in c from the ventilation pipe 108 to the air pressure groove 204, positive pressure is generated in the air pressure groove 204, and the massage protrusion 202 is lifted outward. At this time, the air flow direction in d is opposite to that in the air collecting chamber 204. On the contrary, when the air flows in c from the air pressure groove 204 to the ventilation pipe 108, negative pressure is generated in the air pressure groove 204, and the massage protrusion 202 is retracted into the air pressure groove 204 by the negative pressure and gravity, so that the massage protrusion 202 can realize alternating massage of the sole of the patient's foot.

[0063] The control unit is used to judge the patient's current physical condition based on physiological parameters and adjust the operating power of the lower limb training mechanism.

[0064] Specifically, the blood oxygen sensor, Doppler ultrasound sensor and heart rate sensor in the acquisition unit acquire the patient's blood oxygen saturation, blood flow velocity and heart rate data in real time, and send these data to the control unit.

[0065] The control unit performs real-time analysis on the collected data to determine whether the various physiological parameters are within the pre-set normal range.

[0066] If the physiological parameters are within the normal range, the control unit will gradually increase or maintain the operating power of the lower limb training mechanism according to the preset exercise plan, and guide the patient to perform flexion and extension training and ankle pump exercises to promote blood circulation and prevent thrombosis.

[0067] When a decrease in blood oxygen saturation or a slowdown in blood flow is detected, the control unit determines that there may be poor blood circulation in the lower limbs, and will automatically reduce the operating power of the lower limb training mechanism (the first drive member 4 and the second drive member 105, the same below), reduce the exercise intensity, and avoid lower limb hypoxia or blood stasis caused by excessive exercise.

[0068] If the heart rate exceeds the normal range, the control unit will reduce the exercise intensity to reduce the burden on the heart and ensure that the patient exercises within a safe heart rate range.

[0069] It also includes an alarm unit, which is a combination of a buzzer and an LED flashing light. The alarm unit is used to send an alarm signal to the outside; the alarm unit is electrically connected to the control unit.

[0070] When physiological parameters exceed the preset normal range and exceed the set safety threshold, the control unit immediately triggers the alarm unit to emit audible and visual alarm signals, prompting medical staff or patients to take timely measures. The trigger conditions and alarm levels of the alarm unit can be set according to the degree of abnormality of the parameters, so that medical staff can quickly and accurately determine the urgency of the situation.

[0071] The specific implementation process is as follows:

[0072] When a patient performs lower limb flexion and extension training, the patient lies flat on the first carrier 1 under the guidance of a doctor, then places both feet into the first strap 103 and steps on the nut seat 102. The second driving member 105 is then activated, which drives the lead screw 104 to rotate back and forth, and the lead screw 104 drives the nut seat 102 to move back and forth, thereby exercising the patient's lower limb muscles and improving the range of motion of the joints.

[0073] When the patient performs ankle pump exercise training, the patient places both feet on the foot pedals 2 and fixes the feet on the foot pedals 2 through the second straps 201 to ensure that the feet will not slip during the exercise.

[0074] When the first drive member 4 is activated, its output shaft rotates the transmission shaft 110. Drive shaft 110, through the interlocking action of crank 113 and rotating shaft 114, causes the third carrier 111 and its welded struts 112 to drive the outer edge of the second carrier 3 in a circumferential, undulating motion. This undulating motion of the second carrier 3 simulates the natural movement patterns of the ankle joint, including dorsiflexion and plantar flexion. Simultaneously, as the outer edge of the second carrier 3 undulates, the connecting rod 109 sequentially reciprocates, driving the piston 107 to slide back and forth within the sealing groove 106, thereby changing the air pressure within the sealing groove 106.

[0075] When the piston 107 moves into the sealing groove 106 (such as A mentioned above), the air in A is compressed and the air pressure increases (and the corresponding B moves outward, and negative pressure gradually occurs in B). At this time, the air enters the transfer groove 301 through the ventilation pipe 108, and then flows into the adjustment groove 306, pushing the trigger member (rack 304) to move in the adjustment groove 306 (due to the pressure difference between the two ends of the adjustment groove 306, the air pressure at the end of the adjustment groove 306 connected to A gradually increases, while the air pressure at the end of the adjustment groove 306 connected to B gradually decreases). The movement of the trigger member drives the gear 305 meshing with it to deflect back and forth, and the rotation of the gear 305 drives the foot pedal 2 to deflect back and forth around its axis, imitating the circular motion of the ankle joint. At the same time, since the two ends of the regulating groove 306 are respectively connected to the symmetrically distributed transfer groove 301, when the air pressure at one end increases, the air pressure at the other end decreases relatively, thereby forming an alternating air pressure change, so that the trigger can continue to move back and forth, driving the foot pedal 2 to achieve continuous ankle pump movement (360° movement centered on the ankle joint), effectively enhancing blood flow stimulation and preventing thrombosis.

[0076] At the same time, the air flow direction within the transfer tank 301 (as shown in c and d above) not connected to the regulating tank 306 also changes periodically due to the reciprocating motion of the piston 107. When the air flow within the transfer tank 301 is from the ventilation duct 108 to the air pressure tank 204, the air enters the first or second air collecting chamber 2041 through the bellows 203, and then enters the connected air pressure tank 204. This causes the massage protrusions 202 within the air pressure tank 204 to push outward under the action of air pressure, thereby pressing the acupuncture points on the patient's foot. When the air flow within the transfer tank 301 is from the air pressure tank 204 to the ventilation duct 108, the air within the air pressure tank 204 is drawn into the sealing tank 106, reducing the air pressure and generating negative pressure. The massage protrusions 202 retract into the air pressure tank 204 under the action of negative pressure and gravity. In this way, the massage protrusions 202 alternately massage the acupuncture points on the soles of the feet as the air pressure changes periodically, stimulating the blood vessels and nerves on the soles of the feet, further promoting blood circulation, and reducing the risk of thrombosis.

[0077] During flexion and extension training and ankle pump exercises, the data acquisition unit collects physiological parameters such as blood oxygen saturation, blood flow velocity, and heart rate in real time and transmits the data to the control unit. The control unit analyzes and assesses the data based on preset normal ranges and safety thresholds. If all physiological parameters are within normal ranges, the control unit gradually increases or maintains the operating power of the lower limb training mechanism according to the preset exercise plan, guiding the patient to gradually adapt and complete the training task.

[0078] If a decrease in blood oxygen saturation or a decrease in blood flow is detected, the control unit determines that poor blood circulation in the lower extremities may exist and automatically reduces the operating power of the first and second drive members 4, 105, and reduces exercise intensity to prevent hypoxia or increased blood stasis in the lower extremities caused by excessive exercise. If the patient's heart rate exceeds the normal range, the control unit will reduce the exercise intensity to reduce the burden on the heart and ensure that the patient exercises within a safe heart rate range.

[0079] If physiological parameters exceed preset safety thresholds, such as a sudden drop in blood oxygen saturation or an abnormally elevated heart rate, the control unit immediately triggers an alarm. A buzzer sounds and an LED flashes, alerting medical staff or patients to take timely action to avoid potential danger. Medical staff can quickly adjust treatment plans or check the device's operating status based on the alarm to ensure the continuity and effectiveness of treatment.

[0080] Example 2

[0081] The only difference from the above-mentioned embodiment 1 is that the air pressure grooves 204 are respectively connected to the transfer grooves 301 that are not connected to the adjustment groove 306. For the sake of ease of understanding, the transfer grooves 301 that are not connected to the adjustment groove 306 are recorded as massage grooves in this article. The air pressure grooves 204 are divided into two parts according to their distribution positions. One part of the air pressure grooves 204 arranged at specific acupoints (such as Yongquan acupoint, Kunlun acupoint, Taixi acupoint, etc.) are recorded as functional grooves, and the remaining air pressure grooves 204 are recorded as ordinary grooves. A first air collecting chamber 2041 is connected between the functional grooves and the massage grooves, and a second air collecting chamber is connected between the ordinary grooves and the massage grooves. In this embodiment, the functional slot corresponding to the Yongquan acupoint is bidirectionally connected to the first gas collecting chamber 2041. Except for the functional slot corresponding to the Yongquan acupoint, the other functional slots are connected to the first gas collecting chamber 2041 via a first channel and a second channel. The first channel is connected to the solenoid valve 2043, and the second channel is connected to the Tesla valve pipeline 2042. The flow in the Tesla valve pipeline 2042 from the functional slot to the first gas collecting chamber 2041 is a forward flow, and the solenoid valve 2043 is electrically connected to the control unit.

[0082] Preferably, the sealing groove is in communication with the outside world, a sealing valve is provided on the communication path between the sealing groove and the outside world, and the sealing valve is electrically connected to the control unit.

[0083] Specific implementation process: During the ankle pump exercise cycle, through a preset time node (for example, after a preset time period of training starts), the air pressure in the functional groove is controlled to suddenly change, so that the massage protrusion 202 applies pulse pressure (pressure surge) to the Yongquan acupoint in a short period of time. The Yongquan acupoint is the starting point of the kidney meridian, and strong stimulation can trigger the vasoconstriction-dilation reflex of the lower limbs. Specifically, when the air flows back and forth between the air pressure groove 204 and the sealing groove 106, the solenoid valve 2043 is closed, and the air flows to the functional groove (air pressure groove 204, the same below), the air will enter the functional groove from the Tesla valve pipe 2042. Due to the special structure of the Tesla valve pipe 2042, the flow resistance of the air in the Tesla valve pipe 2042 will increase, while the flow in the functional groove corresponding to the Yongquan acupoint is normal (without the obstruction of the Tesla valve pipe 2042). More air will flow into the functional groove corresponding to the Yongquan acupoint, thereby increasing the distance and force of the massage protrusion 202 there moving outward, thereby generating a controllable strong stimulation, and then the feedback signal is collected through the blood oxygen sensor of the dorsalis pedis artery, Doppler ultrasound sensor, heart rate sensor and other collection devices. The specific feedback indicators are as follows:

[0084]

[0085] The control unit adjusts the training parameters of the lower limb training mechanism in real time based on tolerance feedback (i.e. tolerance):

[0086] Adjustment of the ankle pump motion unit: Good tolerance: increase the motion frequency; Insufficient tolerance: switch to "reduction mode": cancel the circumferential motion and only retain dorsiflexion / plantar flexion (reduce joint load). Specifically, open the sealing valve corresponding to the sealing groove 106 connected to the adjustment groove 306, thereby canceling the circumferential motion.

[0087] This embodiment implements intelligent closed-loop adjustment of training parameters by applying controllable strong stimulation and collecting multi-dimensional physiological feedback during training.

[0088] The above is only an embodiment of the present invention, and common knowledge such as the specific structure and / or characteristics of the scheme is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An exercise device for preventing lower limb thrombosis in coronary heart disease, comprising a collection unit, a lower limb training mechanism, and a control unit; characterized in that: The acquisition unit is used to collect the patient's physiological parameters; the lower limb training mechanism is used to assist the patient in completing lower limb training exercises; the control unit is used to judge the patient's current physical condition based on the physiological parameters and adjust the operating power of the lower limb training mechanism.

2. The exercise device for preventing lower limb thrombosis caused by coronary heart disease according to claim 1, characterized in that: Physiological parameters include but are not limited to blood oxygen saturation, blood flow velocity, and heart rate.

3. The exercise device for preventing lower limb thrombosis caused by coronary heart disease according to claim 2, characterized in that: The lower limb training mechanism comprises a first carrier (1), on which a flexion and extension training unit and an ankle pump movement unit are provided; the flexion and extension training unit is used to assist the patient's lower limbs to complete flexion and extension training; and the ankle pump movement unit is used to assist the patient's lower limbs to complete ankle pump movement.

4. The exercise device for preventing lower limb thrombosis caused by coronary heart disease according to claim 3, characterized in that: The ankle pump motion unit comprises a first driving member (4) and a plurality of sealing grooves (106) arranged in a first carrier (1); the sealing grooves (106) are arranged circumferentially with the center of the first driving member (4); pistons (107) are slidably fitted in the sealing grooves (106); a connecting rod (109) is provided at one end of the piston (107) away from the first driving member (4); the other end of the connecting rod (109) is spherically hinged with the second carrier (3); a transfer groove (301) is provided at the spherical hinge between the connecting rod (109) and the second carrier (3); a ventilation pipe (108) is provided in the connecting rod (109); the ventilation pipe (108) connects the sealing groove (106) with the transfer groove (301); An adjustment groove (306) is provided in the second carrier (3), and both ends of the adjustment groove (306) are respectively connected to any symmetrically distributed transfer grooves (301). A trigger member is slidably fitted in the adjustment groove (306), and the trigger member is meshed with a gear (305). The gear (305) is rotationally connected to the second carrier (3), and a pedal (2) is axially provided on the gear (305); A circumferential undulating mechanism is provided on the output shaft of the first driving member (4), and the circumferential undulating mechanism is used to drive the outer edge portion of the second carrier (3) to perform undulating motion.

5. The exercise device for preventing lower limb thrombosis caused by coronary heart disease according to claim 4, characterized in that: The circumferential undulating mechanism comprises a transmission shaft (110); the transmission shaft (110) is coaxially fixedly connected to the output shaft of the first driving member (4); a crank (113) is provided at the other end of the transmission shaft (110); the other end of the crank (113) is rotatably connected to a rotating shaft (114); a third carrier (111) is axially provided on the rotating shaft (114); a plurality of pillars (112) are circumferentially provided on the third carrier (111); the pillars (112) are respectively fixedly connected to the second carrier (3).

6. The exercise device for preventing lower limb thrombosis caused by coronary heart disease according to claim 5, characterized in that: The flexion and extension training mechanism comprises a slide groove (101) provided on the top of the first carrier (1), a nut seat (102) being slidably connected in the slide groove (101), a lead screw (104) and a second driving member (105) being arranged in the slide groove (101), the lead screw (104) being threadedly engaged with the nut seat (102), one end of the lead screw (104) being coaxially fixedly connected to the output shaft of the second driving member (105), the other end of the lead screw (104) being rotatably connected to the side wall of the slide groove (101), and the second driving member (105) being used to drive the lead screw (104) to rotate.

7. The exercise device for preventing lower limb thrombosis caused by coronary heart disease according to claim 6, characterized in that: A foot binding mechanism is provided on both the foot pedal (2) and the nut seat (102); the foot binding mechanism is used to prevent the foot from being separated during exercise.

8. The exercise device for preventing lower limb thrombosis caused by coronary heart disease according to claim 7, characterized in that: The foot pedal (2) is also provided with a foot massage mechanism; the foot massage mechanism comprises a plurality of air pressure grooves (204) provided in the foot pedal (2), massage protrusions (202) being slidably connected in the air pressure grooves (204), and the air pressure grooves (204) are respectively connected to transfer grooves (301) that are not connected to the regulating groove (306).

9. The exercise device for preventing lower limb thrombosis caused by coronary heart disease according to claim 8, characterized in that: The massage protrusions (202) are arranged corresponding to the acupuncture points on the soles of the feet.

10. The exercise device for preventing lower limb thrombosis caused by coronary heart disease according to claim 1, characterized in that: It also includes an alarm unit, which is used to send out an alarm signal; the alarm unit is electrically connected to the control unit.

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