Rehabilitation device for preventing deep vein thrombosis of lower limbs lying in bed

Abstract

The invention relates to the field of rehabilitation nursing, and discloses a rehabilitation device for preventing deep vein thrombosis of lower limbs lying in bed, comprising a base, an electric push rod arranged at the top of the base, a support plate arranged at the top of the electric push rod, an adjusting box arranged at the top of the support plate and an adjusting assembly for adjusting the inclination angle of the adjusting box; two liftable bearing frames are arranged in the adjusting box, and a first clamping plate and a second clamping plate are arranged on the two sides of the top of the adjusting box correspondingly; by arranging the bearing frame, the first clamping plate and the second clamping plate, accurate bearing and pressing of the lower limbs of a patient are achieved, during use, the patient only needs to place the legs on the bearing frame, the bearing frame can descend due to the gravity of the legs, and meanwhile the clamping plates are driven to synchronously swing to be tightly attached to the legs of the patient; according to the lower limb vein rehabilitation device, the discomfort possibly caused by an inflatable cuff or a sock in a traditional rehabilitation device is avoided, backflow of lower limb veins is effectively promoted through soft compression of the clamping plates, and the risk of blood deposition is reduced.

Description

Technical Field

[0001] The invention relates to the field of rehabilitation nursing, and in particular to a rehabilitation device for preventing deep vein thrombosis of lower limbs during bed rest. Background Art

[0002] Deep vein thrombosis of the lower extremities is a common complication in bedridden patients, which may lead to serious health problems, including but not limited to pulmonary embolism, lower extremity swelling, pain, and long-term chronic venous insufficiency. This complication occurs mainly because the patient maintains the same posture for a long time, the lower extremity muscle activity is reduced, resulting in slower venous blood flow, and the blood is prone to thrombosis in a hypercoagulable state;

[0003] Traditional prevention methods include regularly turning the patient over and performing passive limb exercises. However, these methods often require a large amount of manpower, so a rehabilitation device for preventing deep vein thrombosis of the lower limbs in bed is needed. Existing rehabilitation devices for preventing deep vein thrombosis of the lower limbs in bed mainly promote blood circulation and reduce blood congestion through intermittent compression therapy. Such devices usually require wearing an inflatable cuff or sock and a matching pressure pump system. Long-term wearing of an inflatable cuff or sock can easily lead to uneven pressure on the local skin and increase the risk of bedsores. However, frequent putting on and taking off of cuffs or socks not only increases the workload of nursing staff, but also interrupts the continuity of treatment, thereby affecting the continuous improvement of blood circulation. In order to solve the above problems, a rehabilitation device for preventing deep vein thrombosis of the lower limbs in bed is proposed.

[0004] The above information disclosed in this background technology is only used to increase the understanding of the background technology of the present invention and therefore, it may include information that does not constitute the prior art known to ordinary technicians in this field. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a rehabilitation device for preventing deep vein thrombosis of lower limbs during bed rest.

[0006] The present invention provides a rehabilitation device for preventing deep vein thrombosis of lower limbs in bed, which adopts the following technical scheme:

[0007] A rehabilitation device for preventing deep vein thrombosis of the lower limbs during bed rest comprises a base, an electric push rod is provided on the top of the base, a support plate is provided on the top of the electric push rod, an adjustment box and an adjustment component for adjusting the inclination angle of the adjustment box are provided on the top of the support plate, two liftable support frames are provided in the adjustment box, a splint 1 and a splint 2 are provided on both sides of the top of the adjustment box respectively, when the support frame descends, the splint 1 and the splint 2 can swing close to each other synchronously, a liftable sliding frame and a moving component for driving the sliding frame to move back and forth are provided in the adjustment box, the sliding frame is located between the two support frames, a plurality of rollers are provided on one side of the adjustment box for rotation, when the moving component drives the sliding frame to move back and forth, the plurality of rollers can rotate synchronously.

[0008] Preferably, the adjusting assembly includes an articulated frame, a support frame, a screw rod, a slider, a connecting block, a connecting rod, a motor 1, and an abutment block. The articulated frame is fixed on the top of the support plate, the adjusting box is hinged to the articulated frame, the support frame is fixed on the top of the articulated frame, the screw rod rotates on the support frame, the slider is threadedly connected to the screw rod, the slider can slide on the top of the support plate, the connecting block is fixed on the bottom of the adjusting box, the two ends of the connecting rod are respectively hinged to the slider and the connecting block, the motor 1 is fixed on one side of the support frame, the rotor end of the motor 1 is fixed to the screw rod, and the abutment block is fixed on the side of the top of the support plate away from the articulated frame, and when the bottom of the adjusting box is parallel to the top of the support plate, the bottom of the adjusting box is in contact with the top of the abutment block.

[0009] Preferably, the interior of the regulating box is a cavity, the top of the regulating box is provided with a through groove for the vertical sliding of the supporting bracket, the bottom of the supporting bracket is provided with a spring 1, the bottom of the spring 1 is provided with a bottom plate 1, and the bottom plate 1 is fixed to the bottom of the inner wall of the regulating box.

[0010] Preferably, the moving assembly includes a threaded rod, a guide rod, an articulated block 2, and a motor 2. The threaded rod rotates in an adjusting box, the guide rod is fixed in the adjusting box, and the articulated block 2 is provided with two, one end of the articulated block 2 can slide on the surface of the guide rod, the other end of the articulated block 2 is hinged to the sliding frame, one end of the other articulated block 2 is threadedly connected to the threaded rod, and the other end of the other articulated block 2 is hinged to the sliding frame, a sliding groove is provided at the bottom of the inner wall of the adjusting box, a telescopic rod is provided at the bottom of the sliding frame, a spring 2 is sleeved on the telescopic rod, a bottom plate 2 is provided at the bottom of the telescopic rod, two ends of the spring 2 are respectively abutted against the sliding frame and the bottom plate 2, a sliding block is provided at the bottom of the bottom plate 2, and the sliding block slides in the sliding groove.

[0011] Preferably, both sides of the support frame are hinged with an articulated block 1, the two articulated blocks 1 respectively rotate on the surface of the threaded rod and the guide rod, the two articulated blocks 1 are hinged with fixed blocks at the ends away from each other, a rack 1 is provided on the top of the fixed block, a sliding opening for the rack 1 to pass through is opened on the top of the adjusting box, an articulated seat is provided on the top of the adjusting box corresponding to the rack 1, a swing seat is rotatably provided on the top of the articulated seat, a gear 1 is rotatably provided on one side of the articulated seat, the gear 1 is fixed to the swing seat, the splint 1 and the splint 2 are respectively fixed on the top of the two articulated seats, the rack 1 extends through the sliding opening to the top of the adjusting box and meshes with the gear 1.

[0012] Preferably, a mounting frame is provided on one side of the adjustment box, a rotating groove for the roller to rotate is opened in the mounting frame, the rotating shaft of the roller extends to the bottom of the mounting frame and is provided with gear 2, rack 2 and rack 3 are slidably provided at the bottom of the mounting frame, the rack 2 and rack 3 are fixed and the tooth directions of rack 2 and rack 3 are perpendicular, rack 2 is meshed with gear 2, one end of the threaded rod passes through the adjustment box and is fixed with gear 3, and gear 3 is meshed with rack 3.

[0013] Preferably, the tops of the support frame and the sliding frame are both arc-shaped, and a plurality of spherical protrusions are rotatably provided on the arc-shaped surfaces of the tops of the support frame and the sliding frame.

[0014] Preferably, a pulley is provided at the bottom of the base.

[0015] In summary, the present invention includes the following beneficial technical effects:

[0016] 1. The present invention realizes accurate support and compression of the patient's lower limbs by providing a support frame, a first splint, and a second splint. When in use, the patient only needs to place the leg on the support frame, and the support frame will drop due to the weight of the leg, while driving the splint to swing synchronously to fit closely with the patient's leg. Compared with the relevant technology, it not only avoids the discomfort that may be caused by the inflatable cuff or sock in the traditional rehabilitation device, but also effectively promotes the return of the lower limb vein through the gentle compression of the splint, reducing the risk of blood congestion;

[0017] 2. The present invention provides a sliding frame and a roller. While the supporting frame and the splint support and compress the patient's lower limbs, the sliding frame can slide back and forth along the inside of the adjustment box under the drive of the moving component, which not only drives the synchronous rotation of the roller to massage and relax the patient's leg muscles, but also realizes synchronous massage of the soles of the feet through the contact between the roller and the soles of the feet. Compared with the related art, it not only helps to relieve the stiffness and discomfort of the patient's lower limbs, but also promotes the contraction and relaxation of muscles through massage, further enhances the power of venous return, improves the treatment effect, and reduces the need for manual operation of nursing staff, further reducing the nursing burden;

[0018] 3. The present invention provides an adjustment box with an adjustable tilt angle, which can adjust the tilt angle according to actual needs. Compared with the related technology, it helps to improve the patient's comfort and can flexibly adjust the placement angle of the lower limbs according to the patient's specific rehabilitation needs, thereby further optimizing the rehabilitation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of a partial side section structure of the present invention;

[0021] Figure 3 yes Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 4 yes Figure 2 The enlarged structural diagram at B in the middle;

[0023] Figure 5 It is a schematic diagram of the structure of the adjustment box of the present invention in an inclined state;

[0024] Figure 6 It is a partial structural schematic diagram of the present invention.

[0025] Description of the accompanying drawings: 1, base; 2, electric push rod; 3, support plate; 4, hinge frame; 5, adjustment box; 6, support frame; 7, screw rod; 8, slider; 9, connecting block; 10, connecting rod; 11, motor 1; 12, abutment block; 13, support frame; 14, threaded rod; 15, guide rod; 16, hinge block 1; 17, fixed block; 18, rack 1; 19, hinge seat; 20, swing seat; 21 1. Gear 1; 22. Plate 1; 23. Plate 2; 24. Spring 1; 25. Bottom plate 1; 26. Sliding frame; 27. Articulated block 2; 28. Telescopic rod; 29. ​​Bottom plate 2; 30. Spring 2; 31. Sliding block; 32. Slide; 33. Motor 2; 34. Mounting frame; 35. Roller; 36. Gear 2; 37. Rack 2; 38. Rack 3; 39. Gear 3; 40. Pulley. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-6 The present invention is described in further detail.

[0027] The embodiment of the present invention discloses a rehabilitation device for preventing deep vein thrombosis of lower limbs during bed rest. Figure 1-6A rehabilitation device for preventing deep vein thrombosis of lower limbs in bed comprises a base 1, an electric push rod 2 is arranged on the top of the base 1, a support plate 3 is arranged on the top of the electric push rod 2, an adjustment box 5 and an adjustment component for adjusting the inclination angle of the adjustment box 5 are arranged on the top of the support plate 3, the adjustment component comprises an articulated frame 4, a support frame 6, a screw rod 7, a slider 8, a connecting block 9, a connecting rod 10, a motor 11, and an abutment block 12, the articulated frame 4 is fixed on the top of the support plate 3, the adjustment box 5 is hinged to the articulated frame 4, the support frame 6 is fixed on the top of the articulated frame 4, the screw rod 7 rotates on the support frame 6, the slider 8 is threadedly connected to the screw rod 7, the slider 8 can slide on the top of the support plate 3, the connecting block 9 is fixed on the bottom of the adjustment box 5, the two ends of the connecting rod 10 are respectively hinged to the slider 8 and the connecting block 9, the motor 11 Fixed on one side of the support frame 6, the rotor end of the motor 11 is fixed to the screw rod 7, and the abutment block 12 is fixed on the side of the top of the support plate 3 away from the hinge frame 4. When the bottom of the adjustment box 5 is parallel to the top of the support plate 3, the bottom of the adjustment box 5 is in contact with the top of the abutment block 12. When in use, the placement height of the support plate 3 and the adjustment box 5 thereon can be adjusted according to actual needs through the extension and retraction of the electric push rod 2. Start the motor 11 to rotate the screw rod 7, and the sliding cooperation between the slider 8 and the top of the support plate 3 can play a guiding role. Under the connecting action of the connecting rod 10, the inclination angle of the adjustment box 5 and the upper support bracket 13 can be adjusted, which helps to improve the patient's comfort. It can also flexibly adjust the placement angle of the lower limbs according to the patient's specific rehabilitation needs, thereby further optimizing the rehabilitation effect.

[0028] Reference Figure 1-4 Two support brackets 13 are arranged in the adjustment box 5, the interior of the adjustment box 5 is a cavity, a through slot for the support bracket 13 to slide vertically is provided on the top of the adjustment box 5, a spring 24 is provided at the bottom of the support bracket 13, a bottom plate 25 is provided at the bottom of the spring 24, and the bottom plate 25 is fixed to the bottom of the inner wall of the adjustment box 5. The patient's lower limbs are placed on the two support brackets 13, and the spring 24 is contracted under the action of the leg gravity, so that the support bracket 13 is lowered to a suitable support height;

[0029] A sliding frame 26 is provided in the adjustment box 5, and a slide groove 32 is provided at the bottom of the inner wall of the adjustment box 5. A telescopic rod 28 is provided at the bottom of the sliding frame 26. A spring 230 is sleeved on the telescopic rod 28. A bottom plate 29 is provided at the bottom of the telescopic rod 28. The two ends of the spring 230 are respectively against the sliding frame 26 and the bottom plate 29. A sliding block 31 is provided at the bottom of the bottom plate 29. The sliding block 31 slides in the slide groove 32. The sliding frame 26 is located between the two supporting frames 13. When the lower limbs are placed on the supporting frames 13, they will be placed on the sliding frame 26 synchronously. At this time, the spring 230 is also compressed synchronously, and the telescopic rod 28 contracts at the same time to maintain the stability of the sliding frame 26. At this time, the sliding frame 26 can cooperate with the two supporting frames 13 to provide stable support for the patient's lower limbs.

[0030] Reference Figure 1-4, a moving assembly for driving the sliding frame 26 to move back and forth is provided in the adjusting box 5, and the moving assembly includes a threaded rod 14, a guide rod 15, a hinge block 27, and a motor 33. The threaded rod 14 rotates in the adjusting box 5, and the guide rod 15 is fixed in the adjusting box 5. There are two hinge blocks 27, one end of which can slide on the surface of the guide rod 15, and the other end of one hinge block 27 is hinged to the sliding frame 26, and one end of the other hinge block 27 is threadedly connected to the threaded rod 14, and the other end of the other hinge block 27 is hinged to the sliding frame 26. When in use, start the motor 33 to rotate the threaded rod 14, and under the guiding action of the guide rod 15, the sliding frame 26 is reciprocated along the length direction of the slide groove 32, so that the patient's leg muscles can be massaged and relaxed, the contraction and relaxation of the muscles can be promoted, and the power of venous return can be enhanced.

[0031] Reference Figure 1-3 , a clamping plate 22 and a clamping plate 23 are respectively provided on both sides of the top of the adjustment box 5, and a hinge block 16 is hinged on both sides of the support frame 13. The two hinge blocks 16 rotate on the surfaces of the threaded rod 14 and the guide rod 15 respectively. The ends of the two hinge blocks 16 that are away from each other are respectively hinged with fixed blocks 17, and a rack 18 is provided on the top of the fixed block 17. A sliding opening for the rack 18 to pass through is opened on the top of the adjustment box 5. A hinge seat 19 is provided on the top of the adjustment box 5 corresponding to the rack 18. A swing seat 20 is rotatably provided on the top of the hinge seat 19, and a gear 21 is rotatably provided on one side of the hinge seat 19. The gear One 21 is fixed to the swing seat 20, and the splint one 22 and the second splint 23 are respectively fixed on the top of the two hinge seats 19, and the rack one 18 extends through the slide to the top of the adjustment box 5 and meshes with the gear one 21. When the weight of the leg presses the support bracket 13 down, the fixed block 17 and the rack one 18 on it rise along the slide under the lever action of the hinge block one 16, so that the gear one 21, the swing seat 20 and the splint one 22 and the second splint two 23 are synchronously swung close to fit the patient's legs, forming a gentle compression, which effectively promotes the return of the lower limb veins and reduces the risk of blood stasis.

[0032] Reference Figure 1 , 6A plurality of rollers 35 are rotatably provided on one side of the adjusting box 5, a mounting frame 34 is provided on one side of the adjusting box 5, a rotating groove for the rollers 35 to rotate is provided in the mounting frame 34, the rotating shaft of the rollers 35 extends to the bottom of the mounting frame 34 and is provided with a second gear 36, a second rack 37 and a third rack 38 are slidably provided at the bottom of the mounting frame 34, the second rack 37 and the third rack 38 are fixed and the tooth directions of the second rack 37 and the third rack 38 are perpendicular, the second rack 37 meshes with the second gear 36, one end of the threaded rod 14 passes through the adjusting box 5 and is fixed There is a gear three 39, which meshes with a rack three 38. When the threaded rod 14 rotates, the gear three 39 can synchronously drive the rack three 38 to slide, thereby making the rack two 37 slide synchronously. Under the action of the gear two 36, the roller 35 rotates, and the roller 35 contacts the sole of the patient's foot, thereby achieving synchronous massage of the sole, further promoting muscle contraction and relaxation, enhancing the power of venous return, improving the treatment effect, and at the same time reducing the need for manual operation of nursing staff and alleviating the nursing burden.

[0033] Reference Figure 1 The tops of the support frame 13 and the sliding frame 26 are both arc-shaped, which can better fit the natural curves of the patient's legs and feet, providing a more comfortable support and massage experience. The support frame 13 and the sliding frame 26 are both rotatably provided with a plurality of spherical protrusions on the arc-shaped surfaces at the tops. The spherical protrusions not only improve the massage effect, but also effectively disperse the pressure, avoid the problem of excessive local pressure, and further improve the treatment effect.

[0034] Reference Figure 1 A pulley 40 is provided at the bottom of the base 1 to facilitate the flexible movement of the rehabilitation device.

[0035] Finally, a few points should be explained: First, in the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0036] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0037] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0038] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rehabilitation device for preventing deep vein thrombosis of lower limbs in bedridden patients, comprising a base (1), characterized in that: The top of the base (1) is provided with an electric push rod (2), the top of the electric push rod (2) is provided with a support plate (3), the top of the support plate (3) is provided with an adjustment box (5) and an adjustment component for adjusting the inclination angle of the adjustment box (5), the adjustment box (5) is provided with two liftable support frames (13), the top of the adjustment box (5) is provided with a clamping plate (22) and a clamping plate (23) on both sides, when the support frame (13) descends, the clamping plate (22) and the clamping plate (23) can be synchronously swung close to each other, the adjustment box (5) is provided with a liftable sliding frame (26) and a moving component for driving the sliding frame (26) to move back and forth, the sliding frame (26) is located between the two support frames (13), one side of the adjustment box (5) is rotatably provided with a plurality of rollers (35), when the moving component drives the sliding frame (26) to move back and forth, the plurality of rollers (35) can rotate synchronously.

2. A rehabilitation device for preventing deep vein thrombosis of lower limbs in bed according to claim 1, characterized in that: The adjustment assembly comprises an articulated frame (4), a support frame (6), a screw rod (7), a slider (8), a connecting block (9), a connecting rod (10), a motor 1 (11), and an abutment block (12); the articulated frame (4) is fixed on the top of the support plate (3); the adjustment box (5) is hinged to the articulated frame (4); the support frame (6) is fixed to the top of the articulated frame (4); the screw rod (7) rotates on the support frame (6); the slider (8) is threadedly connected to the screw rod (7); and the slider (8) can slide on the support plate (3). The top of the adjusting box (5) is fixed to the bottom of the adjusting box (5), the two ends of the connecting rod (10) are respectively hinged to the slider (8) and the connecting block (9), the motor (11) is fixed to one side of the supporting frame (6), the rotor end of the motor (11) is fixed to the screw rod (7), the abutment block (12) is fixed to the side of the top of the supporting plate (3) away from the hinge frame (4), and when the bottom of the adjusting box (5) is parallel to the top of the supporting plate (3), the bottom of the adjusting box (5) is in contact with the top of the abutment block (12).

3. A rehabilitation device for preventing deep vein thrombosis of lower limbs in bed according to claim 1, characterized in that: The interior of the regulating box (5) is hollow, the top of the regulating box (5) is provided with a through slot for the support bracket (13) to slide vertically, the bottom of the support bracket (13) is provided with a spring (24), the bottom of the spring (24) is provided with a bottom plate (25), and the bottom of the bottom plate (25) is fixed to the bottom of the inner wall of the regulating box (5).

4. A rehabilitation device for preventing deep vein thrombosis of lower limbs in bed according to claim 1, characterized in that: The moving assembly comprises a threaded rod (14), a guide rod (15), a hinge block (27), and a motor (33). The threaded rod (14) rotates in the adjustment box (5), the guide rod (15) is fixed in the adjustment box (5), and two hinge blocks (27) are provided. One end of the hinge block (27) can slide on the surface of the guide rod (15), and the other end of the hinge block (27) is hinged to the sliding frame (26). One end of the other hinge block (27) is threadedly connected to the threaded rod (14), and the other end of the hinge block (27) is hinged to the sliding frame (26). The other end of the hinge block 2 (27) is hinged to the sliding frame (26); a slide groove (32) is provided at the bottom of the inner wall of the adjustment box (5); a telescopic rod (28) is provided at the bottom of the sliding frame (26); a spring 2 (30) is sleeved on the telescopic rod (28); a bottom plate 2 (29) is provided at the bottom of the telescopic rod (28); two ends of the spring 2 (30) are respectively abutted against the sliding frame (26) and the bottom plate 2 (29); a sliding block (31) is provided at the bottom of the bottom plate 2 (29); and the sliding block (31) slides in the slide groove (32).

5. A rehabilitation device for preventing deep vein thrombosis of lower limbs in bed according to claim 4, characterized in that: Both sides of the support frame (13) are hinged with hinge blocks (16), and the two hinge blocks (16) are respectively rotated on the surfaces of the threaded rod (14) and the guide rod (15). The ends of the two hinge blocks (16) that are away from each other are respectively hinged with fixed blocks (17). The top of the fixed block (17) is provided with a rack (18). The top of the adjustment box (5) is provided with a sliding opening for the rack (18) to pass through. The top of the adjustment box (5) is The rack 1 (18) is provided with an articulated seat (19), the top of the articulated seat (19) is rotatably provided with a swing seat (20), one side of the articulated seat (19) is rotatably provided with a gear 1 (21), the gear 1 (21) is fixed to the swing seat (20), the clamping plate 1 (22) and the clamping plate 2 (23) are respectively fixed to the top of the two articulated seats (19), and the rack 1 (18) extends through the sliding opening to the top of the adjustment box (5) and meshes with the gear 1 (21).

6. The rehabilitation device for preventing deep vein thrombosis of lower limbs in bed according to claim 1, characterized in that: A mounting frame (34) is provided on one side of the regulating box (5), a rotating groove for the roller (35) to rotate is provided in the mounting frame (34), the rotating shaft of the roller (35) extends to the bottom of the mounting frame (34) and is provided with a second gear (36), a second rack (37) and a third rack (38) are slidably provided at the bottom of the mounting frame (34), the second rack (37) and the third rack (38) are fixed and the tooth directions of the second rack (37) and the third rack (38) are perpendicular, the second rack (37) is meshed with the second gear (36), one end of the threaded rod (14) passes through the regulating box (5) and is fixed with a third gear (39), the third gear (39) is meshed with the third gear (38).

7. A rehabilitation device for preventing deep vein thrombosis of lower limbs in bed according to claim 1, characterized in that: The tops of the support frame (13) and the sliding frame (26) are both arc-shaped, and a plurality of spherical protrusions are rotatably provided on the arc-shaped surfaces at the tops of the support frame (13) and the sliding frame (26).

8. The rehabilitation device for preventing deep vein thrombosis of lower limbs in bed according to claim 1, characterized in that: A pulley (40) is provided at the bottom of the base (1).

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