Exercise device for preventing lower limb venous thrombosis

Abstract

The invention discloses an exercise device for preventing lower limb venous thrombosis, and relates to the technical field of medical instruments, the technical scheme is that the exercise device comprises two bases, the bottom of each base is provided with two universal wheels, and the top of one base is provided with a first fixing structure; an inner guide rail and an outer guide rail are arranged between the two bases, the outer guide rail is connected with a first jacking structure and a second fixing structure, the top of the first jacking structure is provided with a first supporting rod, and the second fixing structure is provided with a second supporting rod; the inner guide rail is in sliding connection with an arc-shaped guide rail, the arc-shaped guide rail is in sliding connection with a second jacking structure, the second jacking structure is provided with a third supporting rod, a first supporting plate is movably connected between the first supporting rod and the second supporting rod, a second supporting plate is movably connected between the first supporting rod and the third supporting rod, and massage structures are arranged on the top face of the first supporting plate and the top face of the second supporting plate. According to the utility model, movement assistance can be provided for a patient in a sleeping posture and a patient in a sitting posture, legs of the patient can be massaged, blood circulation is promoted, and the treatment effect is improved.

Description

Technical Field

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

[0002] Deep vein thrombosis refers to abnormal blood coagulation in the deep veins, which is a disease of venous reflux obstruction in the lower extremities. Thrombosis mostly occurs in a state of immobilization (especially major orthopedic surgery). The three major pathogenic factors are slow blood flow, venous damage and hypercoagulable state. After thrombosis, except for a few that can be self-ablated or confined to the site of occurrence, most will spread to the deep veins of the entire limb. If not diagnosed and treated in time, most will develop into sequelae of thrombosis, affecting the patient's quality of life for a long time. Some patients may also suffer from pulmonary embolism, resulting in extremely serious consequences.

[0003] Patent CN113181005B discloses an exercise device for preventing deep vein thrombosis of the lower limbs, including a fixing mechanism, a lifting mechanism and a movement mechanism connected in sequence, the lifting mechanism including a calf placement chamber, a calf lifting frame being arranged in the calf placement chamber, the calf lifting frame being connected to the calf placement chamber by a folding support rod, a calf placement plate being arranged on the calf lifting frame, the movement mechanism including an ankle rotation movement component, a heel limiter component and a dorsiflexion and plantar flexion movement component, and leg lifting movement, ankle rotation movement, dorsiflexion and plantar flexion movement and plantar toe flexion and extension movement can be performed through an electric control component and a manual control component. The device has a reasonable structure and is easy to operate, can effectively reduce the incidence of existing postoperative DVT, promote blood circulation and lymphatic return of patients' lower limbs, reduce swelling and pain of patients' lower limbs, avoid muscle atrophy, and prevent loss of motor function.

[0004] However, the above device still has some problems. First, this device is mainly for bedridden patients and is not suitable for patients who can sit. Moreover, the legs can only be lifted but not bent. Second, the patient must lie on the entire device when using it, which is not convenient, especially for some patients with limited mobility. It is not convenient to lie on it and take it off after exercise. Summary of the invention

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

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: an exercise device for preventing lower limb venous thrombosis, comprising two parallel bases, two universal wheels are provided at the bottom of the two bases, and a first fixed 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 to a first lifting structure and a second fixed 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 to a first support rod, the second fixed structure is fixedly connected to the outer guide rail, and the second fixed structure is fixedly connected to a second support rod; the inner guide rail is slidably connected to an arc guide rail, the arc guide rail is slidably connected to a second lifting structure, the second lifting structure is fixedly connected to 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, and massage structures are provided on the top surfaces of the first support plate and the second support plate.

[0007] By adopting the above technical scheme, exercise assistance can be provided for patients in sleeping position and patients in sitting position; for patients in sleeping position, before exercising, first push the device to one side of the 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 at the side of the bed near the buttocks, and then fix the patient's calf and thigh to the second support board and the first support board respectively with fixing objects such as straps, so that the patient can perform leg-lifting or knee-bending exercises; the second lifting structure moves upward, driving the first support board and the second support board to lift the thigh and calf together to perform leg-lifting exercises with the hip joint as the axis; keep the second lifting structure close to the bed board and do not move up and down, Only the first lifting structure lifts up and down, so that the calf and thigh can perform knee flexion exercise with the knee joint as the axis; 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 plate of the chair, and then place the first support plate on the top surface of the seat plate. The patient sits on the chair with the thigh on the top of the first support plate, and then fixes the calf to the top of the second support plate through a fixing device such as a strap. The first lifting structure is fixed, and only the second lifting structure drives the second support plate to rotate around the first support rod, thereby exercising the patient's calf; during the exercise, the patient's legs can also be massaged by the massage structure to promote blood circulation.

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

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

[0010] The present invention is further configured as follows: the inner guide rail and the outer guide rail are connected in parallel to one end of the two bases, and the two bases and 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 legs of the bottom of the hospital bed during movement, so the device and the bed board can be conveniently fixed.

[0012] The present invention is further configured as follows: the first lifting structure includes a first limit slider slidingly connected to the outer guide rail, the first limit slider is movably connected to a first tension knob, the top surface of the first limit slider is fixedly connected to a telescopic rod, the top end of the telescopic rod is fixedly connected to 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, when the patient is in a sleeping state, the first telescopic rod lifts the first support rod to enable the patient to flex his knees. During the lifting process of the first support rod, the first lifting structure will inevitably move toward the second fixed structure, and the first limiting slider can both ensure the fixation of the telescopic rod and perform necessary sliding. When the patient is in a sitting state, the lifting structure needs to be fixed, and the first slider can be fixed to the outer guide rail through the first tension knob.

[0014] The present invention is further configured as follows: the second fixed structure includes a second support column fixedly connected to the top surface of the outer guide rail, a second U-shaped 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 block.

[0015] By adopting the above technical solution, the fixation of the device to the bed board or the seat board is ensured, and the first support plate can be rotated around the second support rod to complete the leg lifting action.

[0016] The present invention is further configured as follows: the arc guide rail is a circular arc structure with the first support rod as the axis, the cross section of the arc 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 guide rail, and two third support columns are fixedly connected to the outer side of the arc guide rail, and the bottoms of the two third support columns are fixedly connected to second limit sliders, and the two second limit sliders are both slidably connected to the inner guide rail, and one of the second limit sliders is movably connected to a second tension knob.

[0017] The present invention is further configured as follows: the second lifting structure includes a limit plate, the third support rod is fixedly connected to the limit plate, the limit plate shaft is connected with a roller and a gear away from the third support rod, the roller rolls along the outer surface of the arc guide rail, the gear is meshed with the rack and rolls, the gear shaft is connected with a first motor, and the first motor is fixedly connected to the limit plate.

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

[0019] By adopting the above technical solution, first, the limit plate, roller and gear together constitute a movable limit structure that slides on the T-shaped guide rail, and secondly, the first motor drives the gear to rotate, thereby driving the limit plate and the third support rod and the second support plate to rotate around the first support rod, thereby driving the patient's calf to move; when the patient lifts his legs or bends his knees in a sleeping state, the arc guide rail will move toward the second fixed structure, and the second limit slider can both ensure the fixation of the arc guide rail and perform necessary sliding; when the patient moves his calf in a sitting state, the first lifting structure, the first support plate and the arc guide rail are all in a fixed state, and the second limit slider can be fixed to the inner guide rail by the second tension knob.

[0020] The present invention is further configured as follows: 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 board made of soft rubber with multiple arc-shaped protrusions can massage the patient's calves to a certain extent and promote blood circulation.

[0022] The present invention is further configured as follows: the massage structure also includes two rollers that roll in contact with the bottom surface of the massage plate, the two rollers are fixedly connected to a bracket, the bottom of the two brackets are fixedly connected to a third limit slider, the two third limit sliders are threaded with a screw, the first support plate and the second support plate are both provided with a limit groove for the third limit slider and the screw to move, the two screw shafts are connected to a second motor, and the two second motors are fixedly connected to the first support plate and the second support plate respectively.

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

[0024] In summary, the present invention has the following beneficial effects: The present invention can provide exercise assistance for patients in sleeping positions; for patients in sleeping positions, before exercising, the device is first pushed to one side of the bed, the first fixing structure is fixed to the bed board at the end of the bed, and the second fixing structure is fixed to the bed board at the side of the bed near the buttocks, and then the patient's calf and thigh are respectively fixed to the second support board and the first support board by using fixing objects such as straps, so that the patient can perform leg-lifting or knee-bending exercises; the second lifting structure moves upward, driving the first support board and the second support board to lift the thigh and calf together to perform leg-lifting exercises with the hip joint as the axis; the second lifting structure is kept close to the bed board and does not move up and down, and only the first lifting structure is lifted up and down, so that the calf and thigh perform knee-bending exercises with the knee joint as the axis; The present invention can also provide exercise assistance for patients in a sitting position; for patients in a sitting position, before exercising, first push the device to one side of the chair, fix the first fixing structure to the seat plate of the chair, then place the first support plate on the top surface of the seat plate, the patient sits on the chair, places the thigh on the top of the first support plate, and then fixes the calf to the top of the second support plate through a fixing device such as a strap, the first lifting structure is fixed, and only the second lifting structure drives the second support plate to rotate around the first support rod, so as to exercise the patient's calf; during the exercise, the patient's legs can also be massaged by the massage structure to promote blood circulation; The present invention can also provide massage for the patient's legs during exercise, thereby improving the effect of preventing lower limb venous thrombosis; the motor is used to drive the screw to rotate, further driving the third limit slider to move, and further driving the limit slot 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 with multiple arc-shaped protrusions, which can massage the patient's calves, promote blood circulation, and improve the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a structural diagram of the device in a patient sleeping position according to an embodiment of the present invention; Figure 2 is a structural diagram of the device in a patient sitting position according to an embodiment of the present invention; Figure 3 is a structural diagram of a first fixed structure in an embodiment of the present invention; Figure 4 This is a structural diagram of the first jacking structure in an embodiment of the present invention; Figure 5 is a structural diagram of a second fixed structure in an embodiment of the present invention; Figure 6 is a structural diagram of an arc guide rail in an embodiment of the present invention; Figure 7 This is a structural diagram of a second jacking structure in an embodiment of the present invention; Figure 8 It is an exploded view of the massage structure in the embodiment of the present invention.

[0026] In the figure: 10, base; 101, universal wheel; 102, inner guide rail; 103, outer guide rail; 20, first fixed structure; 201, first support column; 202, limit shaft; 203, push-pull plate; 204, first U-shaped block; 205, spring; 30, first lifting structure; 301, first limit slider; 302, first tension knob; 303, telescopic rod; 304, connecting block; 40, second fixed structure; 401, second support column; 402, second U-shaped block; 50, first support rod; 60, second support rod; 70, arc guide rail; 701, baffle; 702, rack; 703, third support column; 704, second limit slider; 705, second tension knob; 80, second lifting structure; 801, limit plate; 802, roller; 803, gear; 804, first motor; 90, third support rod; 11, first support plate; 111, perforation; 112, limit groove; 12, second support plate; 13, massage structure; 131, massage plate; 132, arc-shaped protrusion; 133, roller; 134, bracket; 135, third limit slider; 136, screw; 137, second motor; 14, bed board; 15, seat board. DETAILED DESCRIPTION

[0027] In order 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 of the present invention and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. The present invention will be described in detail below in conjunction with the embodiments.

[0029] Example:

[0030] like Figure 1-Figure 8 As shown, an exercise device for preventing lower limb venous thrombosis includes two parallel bases 10, and two universal wheels 101 are provided at the bottom of the two bases 10, and a first fixed structure 20 is fixedly connected to the top of one of the bases 10; the first fixed structure 20 includes a first support column 201 vertically fixedly connected to the top surface of the base 10, and the top of the first support column 201 is slidably connected to a limiting shaft 202, and the two ends of the limiting shaft 202 are respectively fixedly connected to a push-pull plate 203 and a first U-shaped block 204, and 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 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 block 204 are pulled by the push-pull plate 203 so that the first fixing structure 20 is temporarily not fixed to the bed board 14. After the second fixing structure 40 is fixed to the bed board 14, the first U-shaped block 204 is clamped on the bed board 14 at the end of the bed, so that the entire device is fixed to the bed body more stably, avoiding the movement of the device during exercise and affecting the treatment effect.

[0031] An inner rail 102 and an outer rail 103 are fixedly connected between the two bases 10, and the inner rail 102 and the outer rail 103 are parallelly connected to one end of the two bases 10. The two bases 10 and the inner rail 102 and the outer rail 103 form a U-shaped structure. The base 10 can smoothly enter the bottom of the bed, and will not be affected by the bottom foot of the bed during the movement, and the device can be conveniently fixed to the bed board 14.

[0032] The outer guide rail 103 is connected to a first lifting structure 30 and a second fixed structure 40. The bottom of the first lifting structure 30 is slidably connected to the outer guide rail 103. The first lifting structure 30 includes a first limit slider 301 slidably connected to the outer guide rail 103. The first limit slider 301 is movably connected to a first tension knob 302. The top surface of the first limit slider 301 is fixedly connected to a telescopic rod 303. The top of the telescopic rod 303 is fixedly connected to a connecting block 304. The first support rod 50 is perpendicular to the telescopic rod 303 and fixedly connected to the connecting block 304. When the patient is in a sleeping state, the first telescopic rod 303 lifts the first support rod 50 to enable the patient to flex his knees. During the lifting process of the first support rod 50, the first lifting structure 30 will inevitably move toward the second fixed structure 40, and the first limiting slider 301 can both ensure the fixation of the telescopic rod 303 and perform necessary sliding. When the patient is in a sitting state, the lifting structure needs to be fixed, and the first slider can be fixed to the outer guide rail 103 through the first tension knob 302.

[0033] The second fixing structure 40 includes 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 a second support rod 60 perpendicular to the second support column 401 and fixedly connected to the top of the second U-shaped block 402. This ensures that the device is fixed to the bed board 14 or the seat board 15, and that the first support board 11 can rotate around the second support rod 60 to complete the leg lifting action.

[0034] The first jacking structure 30 is fixedly connected to the top of a first support rod 50, the second fixed structure 40 is fixedly connected to the outer guide rail 103, and the second fixed structure 40 is fixedly connected to the second support rod 60; the inner guide rail 102 is slidably connected to an arc guide rail 70, and the arc guide rail 70 is slidably connected to the second jacking structure 80, the arc guide rail 70 is a section of an 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, and two third support columns 703 are fixedly connected to the outer side of the arc guide rail 70, and 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 both slidably connected to the inner guide rail 102, and one of the second limit sliders 704 is movably connected to a second tension knob 705.

[0035] The second lifting structure 80 includes a limit plate 801, and the third support rod 90 is fixedly connected to the limit plate 801. The limit plate 801 axis is 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, and the gear 803 is engaged with the rack 702 to roll. The gear 803 axis is connected to a first motor 804, and the first motor 804 is fixedly connected to the limit plate 801.

[0036] 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 pass through the through holes 111 respectively. First, the limit plate 801, the roller 802 and the gear 803 together constitute 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, thereby driving the patient's calf movement; when the patient lifts his legs or bends his knees in a sleeping state, the arc guide rail 70 will move toward the second fixed structure 40, and the second limit slider 704 can both ensure the fixation of the arc guide rail 70 and perform necessary sliding; when the patient moves his calf in a sitting state, the first lifting structure 30, the first support plate 11 and the arc guide rail 70 are all in a fixed state, and the second limit slider 704 can be fixed to the inner guide rail 102 by the second tension knob 705.

[0037] The second lifting structure 80 is fixedly connected to the third support rod 90, the first support plate 11 is movably connected between the first support rod 50 and the second support rod 60, the 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 the top surfaces of the first support plate 11 and the second support plate 12 are both provided with a massage structure 13. 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 the top surface is provided with a plurality of arc-shaped protrusions 132. The massage plate 131 made of soft rubber material with a plurality of arc-shaped protrusions 132 can massage the patient's calf to a certain extent and promote blood circulation.

[0038] The massage structure 13 also includes two rollers 133 that roll in contact with the bottom surface of the massage plate 131. The two rollers 133 are fixedly connected to a bracket 134. The bottom of the two brackets 134 are fixedly connected to a third limit slider 135. The two third limit sliders 135 are threaded with screws 136. The first support plate 11 and the second support plate 12 are both provided with a limit groove 112 for the third limit slider 135 and the screw 136 to move. The two screws 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. The second motor 137 drives the screw 136 to rotate, further drives the third limit slider 135 to move, and further drives the limit groove 112 and the roller 133 to move. The roller 133 causes the massage plate 131 to move up and down, thereby improving the massage effect.

[0039] Working principle: Figure 1 For patients in sleeping positions, before exercising, first push the device to one side of the bed, fix the first fixing structure 20 on the bed board 14 at the foot of the bed, fix the second fixing structure 40 on the bed board 14 on the side of the bed near the buttocks, and then fix the patient's calves and thighs to the second support board 12 and the first support board 11 respectively with fixing objects such as straps, so that the patient can perform leg-lifting or knee-bending exercises; the second lifting structure 80 moves upward, driving the first support board 11 and the second support board 12 to lift the thigh and calf together with the hip joint as the axis to perform leg-lifting exercises; keep the second lifting structure 80 close to the bed board 14 and do not move up and down, and only the first lifting structure 30 lifts up and down, so that the calf and thigh perform knee-bending exercises with the knee joint as the axis; like Figure 2For patients in a sitting position, before exercising, first push the device to one side of the chair, fix the first fixing structure 20 on the seat plate 15 of the chair, and then place the first support plate 11 on the top surface of the seat plate 15. The patient sits on the chair with his thighs on the top of the first support plate 11, and then fixes the calves to the top of the second support plate 12 through fixing devices such as straps. The first lifting structure 30 is fixed, and only the second lifting structure 80 drives the second support plate 12 to rotate around the first support rod 50, so as to exercise the patient's calves; during the exercise, the patient's legs can also be massaged by the massage structure 13 to promote blood circulation.

[0040] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are 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 arcuate guide rail (70); the arcuate 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).

2. The exercise device for preventing lower extremity venous thrombosis according to claim 1, characterized in that: 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).

3. The exercise device for preventing lower extremity venous thrombosis according to claim 1, characterized in that: The inner guide rail (102) and the outer guide rail (103) are connected in parallel 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.

4. The exercise device for preventing lower extremity venous thrombosis according to claim 1, characterized in that: The first lifting structure (30) comprises a first limiting slider (301) slidably connected to the outer guide rail (103); the first limiting slider (301) is movably connected to a first tension knob (302); a telescopic rod (303) is fixedly connected to the top surface of the first limiting slider (301); a connecting block (304) is fixedly connected to the top of the telescopic rod (303); and the first support rod (50) is perpendicular to the telescopic rod (303) and fixedly connected to the connecting block (304).

5. The exercise device for preventing lower extremity venous thrombosis according to claim 1, characterized in that: 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).

6. 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).

7. The exercise device for preventing lower extremity venous thrombosis according to claim 6, 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).

8. 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).

9. 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.

10. The exercise device for preventing lower extremity venous thrombosis according to claim 9, 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