An exercise device for preventing lower limb venous thrombosis

Abstract

The present invention discloses an exercise device for preventing lower limb venous thrombosis, which relates to the technical field of medical devices. The key points of its technical solution are as follows: It includes two bases, and there are two universal wheels at the bottom of each base. A first fixing structure is provided on the top of one of the bases; an inner guide rail and an outer guide rail are arranged between the two bases. The outer guide rail is connected with a first lifting structure and a second fixing structure. A first support rod is provided at the top of the first lifting structure, and a second support rod is provided on the second fixing structure; an arc-shaped guide rail is slidably connected to the inner guide rail, and a second lifting structure is slidably connected to the arc-shaped guide rail. A third support rod is provided on the second lifting structure. A first support plate is movably connected between the first support rod and the second support rod, and a second support plate is movably connected between the first support rod and the third support rod. Massage structures are provided on the top surfaces of the first support plate and the second support plate. It can provide exercise assistance for patients in the sleeping position and the sitting position, and can also massage the legs of patients to promote blood circulation and improve the treatment effect.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more specifically, it relates to an exercise device for preventing lower limb venous thrombosis. Background Art

[0002] Deep vein thrombosis refers to the abnormal coagulation of blood in the deep veins and belongs to the disease of lower limb venous return disorder. Most thrombus formations occur in a static state (especially major orthopedic surgeries). The pathogenic factors include three major factors: slow blood flow, venous wall injury, and hypercoagulable state. After the thrombus is formed, except for a few that can be self-dissolved or limited to the occurrence site, most will spread to the main trunk of the deep veins of the entire limb. If not diagnosed and treated in time, most will evolve into sequelae of thrombus formation, affecting the patient's quality of life for a long time. Some patients may also develop pulmonary embolism, causing extremely serious consequences.

[0003] Patent CN113181005B discloses an exercise device for preventing lower limb deep vein thrombosis, including a fixed mechanism, a lifting mechanism, and a movement mechanism connected in sequence. The lifting mechanism includes a calf placement bin, a calf lifting frame is arranged in the calf placement bin, and the calf lifting frame is connected to the calf placement bin through a folding support rod. A calf placement plate is arranged on the calf lifting frame. The movement mechanism includes an ankle rotation movement component, a heel limiting component, and a dorsiflexion and plantar flexion movement component. It can perform leg lifting movements, ankle rotation movements, dorsiflexion and plantar flexion movements, and metatarsophalangeal flexion and extension movements through an electric control component and a manual control component. The structure of this device is reasonable and easy to operate, which can effectively reduce the incidence of DVT after existing surgeries, promote blood circulation and lymphatic return in the patient's lower limbs, relieve swelling and pain in the patient's lower limbs, avoid muscle atrophy, and prevent the loss of motor function.

[0004] However, there are still some problems with the above device. First, this device is mainly for bedridden patients and is not suitable for patients who can sit. Moreover, for the legs, only leg lifting is possible, and bending is not possible. Second, when in use, the patient must lie on the entire device, which is not convenient enough, especially for some patients with limited mobility. It is not convenient to lie on and take the device after exercise. Summary of the Invention

[0005] The purpose of the present invention is to solve the above problems, and provide an exercise device for preventing lower limb venous thrombosis, which can provide exercise assistance for patients in the sleeping position and the sitting position. During the exercise process, the legs of the patient can also be massaged by a massage structure to promote blood circulation and improve the treatment effect.

[0006] The above technical object of the present invention is achieved by the following technical solutions: A motion device for preventing lower limb venous thrombosis, including two parallel bases, and two universal wheels are provided at the bottoms of the two bases. A first fixing structure is fixedly connected to the top of one of the bases; An inner guide rail and an outer guide rail are fixedly connected between the two bases. The outer guide rail is connected with a first lifting structure and a second fixing structure. The bottom of the first lifting structure is slidably connected to the outer guide rail. The top of the first lifting structure is fixedly connected with a first support rod. The second fixing structure is fixedly connected to the outer guide rail. The second fixing structure is fixedly connected with a second support rod; An arc guide rail is slidably connected to the inner guide rail. The arc guide rail is slidably connected with a second lifting structure. The second lifting structure is fixedly connected with a third support rod. A first support plate is movably connected between the first support rod and the second support rod. A second support plate is movably connected between the first support rod and the third support rod. The first support plate is movably connected to the second support plate. Massage structures are provided on the top surfaces of the first support plate and the second support plate.

[0007] By adopting the above technical solutions, it can provide movement assistance for patients in the sleeping position and the sitting position; For patients in the sleeping position, before the movement, first push the device to one side of the hospital bed, fix the first fixing structure on the bed board at the end of the bed, fix the second fixing structure on the bed board near the buttocks on the side of the hospital bed, and then fix the patient's calf and thigh on the second support plate and the first support plate respectively with fixing objects such as straps, and leg raising or knee bending movements can be carried out; The second lifting structure moves upward to drive the first support plate and the second support plate to lift the thigh and calf together to make a leg raising movement with the hip joint as the axis; Keep the second lifting structure close to the bed board without moving up and down, and only the first lifting structure moves up and down, so that the calf and thigh make a knee bending movement with the knee joint as the axis; For patients in the sitting position, before the movement, first push the device to one side of the chair, fix the first fixing structure on the seat board of the chair, then place the first support plate on the top surface of the seat board. The patient sits on the chair with the thigh on the top of the first support plate, and then fix the calf on the top of the second support plate through a fixing device such as a strap. The first lifting structure remains stationary, and only the second lifting structure drives the second support plate to rotate around the first support rod, so as to move the patient's calf; During the movement, the patient's legs can also be massaged by the massage structure to promote blood circulation.

[0008] The present invention is further provided as follows: The first fixing structure includes a first support column vertically and fixedly connected to the top surface of the base. A limit shaft is slidably connected to the top of the first support column. A push-pull plate and a first U-shaped clamping block are respectively fixedly connected to both ends of the limit shaft. A spring is provided between the first U-shaped clamping block and the first support column. The spring is sleeved outside the limit shaft.

[0009] By adopting the above technical solution, before the second fixing structure is fixed to the bed board, the first limiting shaft and the first U-shaped clamping block are pulled by the push-pull plate, so that the first fixing structure is not temporarily fixed to the bed board. After the second fixing structure is fixed to the bed board, the first U-shaped clamping block is clamped to the bed board at the end of the bed, so that the whole device is more stably fixed to the bed body, avoiding the movement of the device during the movement process and affecting the treatment effect.

[0010] The present invention is further configured such that: the inner guide rail and the outer guide rail are connected in parallel to one end of the two bases, and the two bases, the inner guide rail, and the outer guide rail form a U-shaped structure.

[0011] By adopting the above technical solution, the base can smoothly enter the bottom of the hospital bed and will not be affected by the bed feet at the bottom of the hospital bed during the movement process, and the fixation of the device to the bed board can be conveniently completed.

[0012] The present invention is further configured such that: the first lifting structure includes a first limiting slider slidably connected to the outer guide rail, the first limiting slider is movably connected with a first tightening knob, the top surface of the first limiting slider is fixedly connected with a telescopic rod, the top end of the telescopic rod is fixedly connected with a connecting block, and the first support rod is perpendicular to the telescopic rod and fixedly connected to the connecting block.

[0013] By adopting the above technical solution, in the sleeping posture state of the patient, the first telescopic rod can lift the first support rod to enable the patient to perform knee flexion movement. During the lifting process of the first support rod, the first lifting structure will inevitably move towards the second fixing structure, and the first limiting slider can not only ensure the fixation of the telescopic rod but also perform necessary sliding; in the sitting posture state of the patient, the lifting structure needs to be fixed, and the first slider can be fixed to the outer guide rail through the first tightening knob.

[0014] The present invention is further configured such that: the second fixing structure includes a second support column fixedly connected to the top surface of the outer guide rail, a second U-shaped clamping block is fixedly connected to the top of the second support column, and the second support rod is perpendicular to the second support column and fixedly connected to the top of the second U-shaped clamping block.

[0015] By adopting the above technical solution, it ensures the fixation of the device to the bed board or the seat board, and can also ensure that the first support plate can rotate around the second support rod to complete the leg-lifting action.

[0016] The present invention is further configured such that: the arc-shaped guide rail is a circular arc structure with the first support rod as the axis. The cross-section of the arc-shaped guide rail is a T-shaped structure, and baffles are provided at both ends. A rack is provided on the inner side of the arc-shaped guide rail. Two third support columns are fixedly connected to the outer side of the arc-shaped guide rail. Second limit sliders are fixedly connected to the bottoms of the two third support columns, and the two second limit sliders are both slidably connected to the inner guide rail. One of the second limit sliders is movably connected to a second tensioning knob.

[0017] The present invention is further configured such that: the second lifting structure includes a limit plate. The third support rod is fixedly connected to the limit plate. A roller and a gear away from the third support rod are axially connected to the limit plate. The roller rolls along the outer surface of the arc-shaped guide rail, and the gear meshes and rolls with the rack. The gear is axially connected to a first motor, and the first motor is fixedly connected to the limit plate.

[0018] The present invention is further configured such that: perforations are provided at both ends of the first support plate and the second support plate. The first support rod, the second support rod, and the third support rod respectively pass through the perforations.

[0019] By adopting the above technical solution, first, the limit plate, the roller, and the gear together form a movable limit structure that slides on the T-shaped guide rail. Second, the first motor drives the gear to rotate, thereby driving the limit plate, the third support rod, and the second support plate to rotate around the first support rod, and further driving the calf of the patient to move; when the patient is in a sleeping position and performs a leg-lifting movement or a knee-bending movement, the arc-shaped guide rail will move towards the second fixed structure, and the second limit slider can both ensure the fixation of the arc-shaped guide rail and perform necessary sliding; when the patient is in a sitting position and performs calf movement, the first lifting structure, the first support plate, and the arc-shaped guide rail are all in a fixed state, and the second limit slider can be fixed to the inner guide rail through the second tensioning knob.

[0020] The present invention is further configured such that: the massage structure includes a massage plate fixedly connected to the top surfaces of the first support plate and the second support plate. The massage plate is made of soft rubber material, and a plurality of arc-shaped protrusions are provided on the top surface.

[0021] By adopting the above technical solution, the massage plate made of soft rubber material with a plurality of arc-shaped protrusions can perform a certain massage on the calf of the patient and promote blood circulation.

[0022] The present invention is further configured such that: the massage structure further includes two rollers that rollingly contact the bottom surface of the massage plate. Both of the two rollers are fixedly connected to brackets. The bottoms of both of the two brackets are fixedly connected to third limit sliders. Both of the two third limit sliders are threadedly penetrated by screw rods. The first support plate and the second support plate are both provided with limit grooves for the movement of the third limit sliders and the screw rods. The two screw rods are shaft-connected to a second motor, and the two second motors are respectively fixedly connected to the first support plate and the second support plate.

[0023] By adopting the above technical solution, the second motor is used to drive the screw rod to rotate, further drive the third limit slider to move, and then further drive the limit groove and the roller to move. The roller will cause the massage plate to move up and down, improving the massage effect.

[0024] In summary, the present invention has the following beneficial effects:

[0025] The present invention can provide exercise assistance for patients in a lying position; for patients in a lying position, before exercise, first push the device to one side of the hospital bed, fix the first fixing structure to the bed board at the end of the bed, fix the second fixing structure to the bed board near the buttocks on the side of the hospital bed, and then fix the patient's calf and thigh to the second support plate and the first support plate respectively by fixing objects such as straps, and leg raising or knee bending exercises can be performed; by moving upward the second lifting structure, drive the first support plate and the second support plate to lift the thigh and calf together to perform a leg raising movement with the hip joint as the axis; keep the second lifting structure close to the bed board without moving up and down, and only the first lifting structure moves up and down, so that the calf and thigh perform a knee bending movement with the knee joint as the axis;

[0026] The present invention can also provide exercise assistance for patients in a sitting position; for patients in a sitting position, before exercise, first push the device to one side of the chair, fix the first fixing structure to the seat board of the chair, then place the first support plate on the top surface of the seat board, the patient sits on the chair, place the thigh on the top of the first support plate, and then fix the calf to the top of the second support plate by a fixing device such as a strap. The first lifting structure is fixed, and only the second lifting structure is used to drive the second support plate to rotate around the first strut, so as to exercise the patient's calf; during the exercise, the massage structure can also be used to massage the patient's legs to promote blood circulation;

[0027] The present invention can also provide massage for the patient's legs during the patient's exercise, improving the effect of preventing lower limb deep vein thrombosis; the motor is used to drive the screw rod to rotate, further drive the third limit slider to move, and then further drive the limit groove and the roller to move. The roller will cause the massage plate to move up and down. The massage plate is made of soft rubber material provided with a plurality of arc-shaped protrusions, which can massage the patient's calf, promote its blood circulation, and improve the treatment effect. Description of the Drawings

[0028] Figure 1 It is the structure diagram of the device in the patient's sleeping posture state in the embodiment of the present invention;

[0029] Figure 2 It is the structure diagram of the device in the patient's sitting posture state in the embodiment of the present invention;

[0030] Figure 3 It is the structure diagram of the first fixing structure in the embodiment of the present invention;

[0031] Figure 4 It is the structure diagram of the first lifting structure in the embodiment of the present invention;

[0032] Figure 5 It is the structure diagram of the second fixing structure in the embodiment of the present invention;

[0033] Figure 6 It is the structure diagram of the arc guide rail in the embodiment of the present invention;

[0034] Figure 7 It is the structure diagram of the second lifting structure in the embodiment of the present invention;

[0035] Figure 8 It is the exploded view of the massage structure in the embodiment of the present invention.

[0036] In the figure: 10, base; 101, universal wheel; 102, inner guide rail; 103, outer guide rail; 20, first fixing structure; 201, first support column; 202, limiting shaft; 203, push-pull plate; 204, first U-shaped clamping block; 205, spring; 30, first lifting structure; 301, first limiting slider; 302, first tightening knob; 303, telescopic rod; 304, connecting block; 40, second fixing structure; 401, second support column; 402, second U-shaped clamping block; 50, first support rod; 60, second support rod; 70, arc guide rail; 701, baffle; 702, rack; 703, third support column; 704, second limiting slider; 705, second tightening knob; 80, second lifting structure; 801, limiting plate; 802, roller; 803, gear; 804, first motor; 90, third support rod; 11, first support plate; 111, perforation; 112, limiting groove; 12, second support plate; 13, massage structure; 131, massage plate; 132, arc-shaped protrusion; 133, roller shaft; 134, bracket; 135, third limiting slider; 136, screw rod; 137, second motor; 14, bed board; 15, seat board. Detailed implementation manners

[0037] To enable those skilled in the art to better understand the solution of the present invention, the technical solution of the present invention will be further described in detail below in conjunction with the embodiments and drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0038] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below in conjunction with the embodiments.

[0039] Embodiment:

[0040] As Figures 1 - 8 shown, a motion device for preventing lower limb venous thrombosis includes two parallel bases 10. Two universal wheels 101 are provided at the bottoms of the two bases 10. A first fixing structure 20 is fixedly connected to the top of one of the bases 10. The first fixing structure 20 includes a first support column 201 vertically and fixedly connected to the top surface of the base 10. A limiting shaft 202 is slidably connected to the top of the first support column 201. A push-pull plate 203 and a first U-shaped clamping block 204 are respectively fixedly connected to both ends of the limiting shaft 202. A spring 205 is provided between the first U-shaped clamping block 204 and the first support column 201. The spring 205 is sleeved outside the limiting shaft 202. Before the second fixing structure 40 is fixed to the bed board 14, the first limiting shaft 202 and the first U-shaped clamping block 204 are pulled through the push-pull plate 203, so that the first fixing structure 20 is not fixed to the bed board 14 temporarily. After the second fixing structure 40 is fixed to the bed board 14, the first U-shaped clamping block 204 is clamped to the bed board 14 at the end of the bed, so that the whole device is more stably fixed to the bed body, avoiding the device moving during the movement and affecting the treatment effect.

[0041] An inner guide rail 102 and an outer guide rail 103 are fixedly connected between the two bases 10. The inner guide rail 102 and the outer guide rail 103 are parallelly connected to one end of the two bases 10. The two bases 10 and the inner guide rail 102 and the outer guide rail 103 form a U-shaped structure. This enables the base 10 to smoothly enter the bottom of the hospital bed and will not be affected by the bed feet at the bottom of the hospital bed during the movement, and can conveniently complete the fixation of the device to the bed board 14.

[0042] The outer guide rail 103 is connected with a first jacking structure 30 and a second fixing structure 40. The bottom of the first jacking structure 30 is slidably connected to the outer guide rail 103. The first jacking structure 30 includes a first limiting slider 301 slidably connected to the outer guide rail 103. The first limiting slider 301 is movably connected with a first tightening knob 302. The top surface of the first limiting slider 301 is fixedly connected with a telescopic rod 303. The top end of the telescopic rod 303 is fixedly connected with a connecting block 304. The first support rod 50 is perpendicular to the telescopic rod 303 and fixedly connected to the connecting block 304. In the patient's sleeping posture state, the first telescopic rod 303 jacks up the first support rod 50 to enable the patient to perform a knee-bending movement. During the jacking process of the first support rod 50, the first jacking structure 30 will inevitably move towards the second fixing structure 40. The first limiting slider 301 can not only ensure the fixation of the telescopic rod 303 but also perform necessary sliding. In the patient's sitting posture state, the jacking structure needs to be fixed, and the first slider can be fixed to the outer guide rail 103 through the first tightening knob 302.

[0043] The second fixing structure 40 includes a second support column 401 fixedly connected to the top surface of the outer guide rail 103. The top of the second support column 401 is fixedly connected with a second U-shaped clamping block 402. The second support rod 60 is perpendicular to the second support column 401 and fixedly connected to the top of the second U-shaped clamping block 402. It ensures the fixation of the device to the bed board 14 or the seat board 15 and can also ensure that the first support board 11 can rotate around the second support rod 60 to complete the leg-lifting action.

[0044] The top of the first jacking structure 30 is fixedly connected with a first support rod 50. The second fixing structure 40 is fixedly connected to the outer guide rail 103. The second fixing structure 40 is fixedly connected with a second support rod 60. The inner guide rail 102 is slidably connected with an arc guide rail 70. The arc guide rail 70 is slidably connected with a second jacking structure 80. The arc guide rail 70 is a circular arc structure with the first support rod 50 as the axis. The cross-section of the arc guide rail 70 is a T-shaped structure, and baffles 701 are provided at both ends. A rack 702 is provided on the inner side of the arc guide rail 70. Two third support columns 703 are fixedly connected to the outer side of the arc guide rail 70. The bottoms of the two third support columns 703 are both fixedly connected with second limiting sliders 704. The two second limiting sliders 704 are both slidably connected to the inner guide rail 102. One of the second limiting sliders 704 is movably connected with a second tightening knob 705.

[0045] The second jacking structure 80 includes a limiting plate 801. The third support rod 90 is fixedly connected to the limiting plate 801. The limiting plate 801 is pivotally connected with a roller 802 and a gear 803 away from the third support rod 90. The roller 802 rolls along the outer surface of the arc guide rail 70. The gear 803 meshes with the rack 702 and rolls. The gear 803 is pivotally connected with a first motor 804. The first motor 804 is fixedly connected to the limiting plate 801.

[0046] Perforations 111 are provided at both ends of the first support plate 11 and the second support plate 12, and the first support rod 50, the second support rod 60, and the third support rod 90 respectively pass through the perforations 111. First, the limit plate 801, the roller 802, and the gear 803 together form a movable limit structure that slides on the T-shaped guide rail. Secondly, the first motor 804 drives the gear 803 to rotate, thereby driving the limit plate 801, the third support rod 90, and the second support plate 12 to rotate around the first support rod 50, and further driving the calf of the patient to move; when the patient is in a sleeping position and performs a leg-lifting movement or a knee-bending movement, the arc-shaped guide rail 70 will move towards the second fixed structure 40, and the second limit slider 704 can both ensure the fixation of the arc-shaped guide rail 70 and perform necessary sliding; when the patient is in a sitting position and performs calf movement, the first lifting structure 30, the first support plate 11, and the arc-shaped guide rail 70 are all in a fixed state, and the second limit slider 704 can be fixed to the inner guide rail 102 through the second tightening knob 705.

[0047] The second lifting structure 80 is fixedly connected with a third support rod 90. A first support plate 11 is movably connected between the first support rod 50 and the second support rod 60. A second support plate 12 is movably connected between the first support rod 50 and the third support rod 90. The first support plate 11 is movably connected to the second support plate 12. Massage structures 13 are provided on the top surfaces of the first support plate 11 and the second support plate 12. The massage structure 13 includes a massage plate 131 fixedly connected to the top surfaces of the first support plate 11 and the second support plate 12. The massage plate 131 is made of soft rubber material, and a plurality of arc-shaped protrusions 132 are provided on the top surface. The massage plate 131 made of soft rubber material with a plurality of arc-shaped protrusions 132 can perform a certain massage on the calf of the patient and promote blood circulation.

[0048] The massage structure 13 further includes two rollers 133 that are in rolling contact with the bottom surface of the massage plate 131. Both rollers 133 are fixedly connected with brackets 134. The bottoms of both brackets 134 are fixedly connected with third limit sliders 135. Both third limit sliders 135 are threadedly connected with screw rods 136. The first support plate 11 and the second support plate 12 are both provided with limit grooves 112 for the third limit sliders 135 and the screw rods 136 to move. The two screw rods 136 are axially connected to a second motor 137. The two second motors 137 are respectively fixedly connected to the first support plate 11 and the second support plate 12. By using the second motor 137 to drive the screw rod 136 to rotate, further driving the third limit slider 135 to move, and further driving the limit groove 112 and the roller 133 to move, the roller 133 will cause the massage plate 131 to undulate, improving the massage effect.

[0049] Working principle: As Figure 1, for patients in a sleeping position, before exercise, first push the device to one side of the hospital bed, fix the first fixing structure 20 on the bed board 14 at the end of the bed, fix the second fixing structure 40 on the bed board 14 near the hip on the side of the hospital bed, and then fix the patient's calf and thigh on the second support plate 12 and the first support plate 11 respectively with fixing objects such as straps, and the patient can perform leg-lifting or knee-bending exercises; move upward through the second lifting structure 80 to drive the first support plate 11 and the second support plate 12 to lift the thigh and calf together to perform a leg-lifting movement with the hip joint as the axis; keep the second lifting structure 80 close to the bed board 14 without moving up and down, and only the first lifting structure 30 moves up and down to make the calf and thigh perform a knee-bending movement with the knee joint as the axis;

[0050] For Figure 2 , for patients in a sitting position, before exercise, first push the device to one side of the chair, fix the first fixing structure 20 on the seat board 15 of the chair, then place the first support plate 11 on the top surface of the seat board 15, the patient sits on the chair, place the thigh on the top of the first support plate 11, and then fix the calf on the top of the second support plate 12 with a fixing device such as a strap. The first lifting structure 30 remains stationary, and only the second lifting structure 80 drives the second support plate 12 to rotate around the first support rod 50, so as to move the patient's calf; during the exercise, the leg of the patient can also be massaged by the massage structure 13 to promote blood circulation.

[0051] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. An exercise device for preventing lower extremity venous thrombosis, characterized by: The invention comprises two parallelly arranged bases (10), each of the two bases (10) being provided with two universal wheels (101) at the bottom, wherein the top of one of the bases (10) is fixedly connected to a first fixing structure (20); an inner guide rail (102) and an outer guide rail (103) are fixedly connected between the two bases (10), the outer guide rail (103) being connected to a first lifting structure (30) and a second fixing structure (40), the bottom of the first lifting structure (30) being slidably connected to the outer guide rail (103), the top of the first lifting structure (30) being fixedly connected to a first support rod (50), the second fixing structure (40) being fixedly connected to the outer guide rail (103), the second fixing structure (40) being fixedly connected to the outer guide rail (103), the second fixing structure (40) being fixedly connected to the outer guide rail (103), the first lifting structure (30) being fixedly connected to the first support rod (50), the second fixing structure (40) being fixedly connected to the outer guide rail (103), the second fixing structure (40) being fixedly connected to the second guide rail (103), the first lifting structure (30) being fixedly connected to the first support rod (50 ... guide rail (103), the first lifting structure (30) being fixedly connected to the first guide rail (103), the second fixing structure (40) being fixedly connected to the first guide rail (103), the first lifting structure (30) The structure (40) is fixedly connected to a second support rod (60); the inner guide rail (102) is slidably connected to an arc-shaped guide rail (70); the arc-shaped guide rail (70) is slidably connected to a second lifting structure (80); the second lifting structure (80) is fixedly connected to a third support rod (90); a first support plate (11) is movably connected between the first support rod (50) and the second support rod (60); a second support plate (12) is movably connected between the first support rod (50) and the third support rod (90); the first support plate (11) is movably connected to the second support plate (12); and massage structures (13) are provided on the top surfaces of the first support plate (11) and the second support plate (12); The first fixed structure (20) comprises a first support column (201) vertically fixedly connected to the top surface of the base (10); the top of the first support column (201) is slidably connected to a limit shaft (202); both ends of the limit shaft (202) are respectively fixedly connected to a push-pull plate (203) and a first U-shaped block (204); a spring (205) is provided between the first U-shaped block (204) and the first support column (201); and the spring (205) is sleeved on the outside of the limit shaft (202); The inner guide rail (102) and the outer guide rail (103) are connected in parallel to one end of the two bases (10), and the two bases (10) and the inner guide rail (102) and the outer guide rail (103) form a U-shaped structure; The first lifting structure (30) comprises a first limiting slider (301) slidably connected to the outer guide rail (103), the first limiting slider (301) being movably connected to a first tension knob (302), a top surface of the first limiting slider (301) being fixedly connected to a telescopic rod (303), a top end of the telescopic rod (303) being fixedly connected to a connecting block (304), and the first support rod (50) being perpendicular to the telescopic rod (303) and fixedly connected to the connecting block (304); The second fixed structure (40) comprises a second support column (401) fixedly connected to the top surface of the outer guide rail (103), a second U-shaped block (402) fixedly connected to the top of the second support column (401), and the second support rod (60) is perpendicular to the second support column (401) and fixedly connected to the top of the second U-shaped block (402).

2. The exercise device for preventing lower extremity venous thrombosis according to claim 1, characterized in that: The arc guide rail (70) is a circular arc structure with the first support rod (50) as the axis. The cross section of the arc guide rail (70) is a T-shaped structure, and baffles (701) are provided at both ends. A rack (702) is provided on the inner side of the arc guide rail (70). Two third support columns (703) are fixedly connected to the outer side of the arc guide rail (70). The bottoms of the two third support columns (703) are fixedly connected to second limit sliders (704), and the two second limit sliders (704) are slidably connected to the inner guide rail (102).

3. The exercise device for preventing lower extremity venous thrombosis according to claim 2, characterized in that: The second lifting structure (80) includes a limit plate (801), the third support rod (90) is fixedly connected to the limit plate (801), the limit plate (801) is axially connected to a roller (802) and a gear (803) away from the third support rod (90), the roller (802) rolls along the outer surface of the arc guide rail (70), the gear (803) is meshed with the rack (702) and rolls, the gear (803) is axially connected to a first motor (804), and the first motor (804) is fixedly connected to the limit plate (801).

4. The exercise device for preventing lower extremity venous thrombosis according to claim 1, characterized in that: Both ends of the first support plate (11) and the second support plate (12) are provided with through holes (111), and the first support rod (50), the second support rod (60) and the third support rod (90) respectively pass through the through holes (111).

5. The exercise device for preventing lower extremity venous thrombosis according to claim 1, characterized in that: The massage structure (13) comprises a massage plate (131) fixedly connected to the top surfaces of the first support plate (11) and the second support plate (12); the massage plate (131) is made of soft rubber material and has a plurality of arc-shaped protrusions (132) on the top surface.

6. The exercise device for preventing lower extremity venous thrombosis according to claim 5, characterized in that: The massage structure (13) further comprises two rollers (133) rollingly contacting the bottom surface of the massage plate (131); the two rollers (133) are fixedly connected to a bracket (134); the bottoms of the two brackets (134) are fixedly connected to a third limiting slider (135); the two third limiting sliders (135) are threadedly connected with a screw (136); the first support plate (11) and the second support plate (12) are both provided with a limiting groove (112) for the third limiting slider (135) and the screw (136) to move; the two screws (136) are connected to the shafts of a second motor (137); the two second motors (137) are respectively fixedly connected to the first support plate (11) and the second support plate (12).

Images