Training device for preventing lower limb venous thrombosis

Abstract

The invention discloses a training device for preventing lower limb venous thrombosis, which comprises a mounting frame, a box body, a pedal, a rotary flexion and extension assembly and a driving rotation assembly, and is characterized in that fixing assemblies fixed with two sides of a sickbed are arranged at two ends of the mounting frame; a driving shaft rod penetrates through one end of the box body, and the two ends of the driving shaft rod penetrate through the two sides of the box body and extend outwards; the pedals are located on the two sides of the box body respectively and used for feet of a patient to tread. By additionally arranging the mounting frame, the box body, the pedal plate, the rotating flexion and extension assembly and the driving rotating assembly, passive training can be carried out on the feet of a patient, assisted training of medical staff or family members is avoided, the labor intensity of the medical staff or the family members is reduced, and the medical staff or the family members can conveniently carry out training. Meanwhile, the compliance of the patient in the passive training process is improved, the training effect of the lower limb ankle joints of the patient is improved, blood circulation of the lower limbs of the patient can be better promoted, and the effect of preventing lower limb venous thrombosis is improved.

Description

Technical Field

[0001] The invention relates to the technical field of medical training devices, and in particular to a training device for preventing lower limb venous thrombosis. Background Art

[0002] Lower extremity venous thrombosis is a common peripheral vascular disease caused by three main factors: slow blood flow, hypercoagulable state of blood, and vascular endothelial damage. It refers to an abnormal coagulation of blood in the deep veins of the lower extremities, leading to obstruction of the venous lumen and causing venous reflux obstruction.

[0003] Currently, critically ill patients in the ward need to do passive training in bed. To prevent patients from developing lower limb venous thrombosis, there is an exercise called ankle pump exercise, which is to straighten, bend and rotate the patient's ankle joints to the left or right. This type of training can prevent the formation of lower limb venous thrombosis in patients, but it requires the help of medical staff or family members, which increases the labor intensity of medical staff or family members. At the same time, the patient's compliance during passive training is not very good, which makes the patient's lower limb ankle joint exercise effect poor, and cannot promote the patient's lower limb blood circulation well, reducing the effect of preventing lower limb venous thrombosis. Summary of the invention

[0004] The purpose of the present invention is to provide a training device for preventing lower limb venous thrombosis, which can facilitate patients to passively train and improve the effect of preventing lower limb venous thrombosis, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a training device for preventing lower limb venous thrombosis, comprising a mounting frame, a box, a pedal, a rotating flexion and extension assembly and a driving and rotating assembly, wherein both ends of the mounting frame are provided with fixing assemblies fixed to both sides of the bed; a driving shaft rod is penetrated through one end of the box, and both ends of the driving shaft rod are penetrated through both sides of the box and extend outward; pedals are respectively located on both sides of the box for the patient's feet to step on; straps are fixedly provided at equal distances on both sides of the pedal; the rotating flexion and extension assembly is installed on the back side of the pedal, driving the pedal to rotate and rotating the pedal arranged on the pedal The patient's foot is subjected to rotational flexion and extension operations; the pedal is mounted on the driving shaft and is located inside the box, and is swung back and forth to straighten and flex the patient's foot on the pedal; by adding a mounting frame, a box, a pedal, a rotational flexion and extension component, and a driving rotation component, the patient's foot can be passively trained, thus avoiding the need for assistance from medical staff or family members in training, reducing the labor intensity of medical staff or family members, and improving the patient's compliance during passive training, thereby improving the exercise effect of the patient's lower limb ankle joints, better promoting blood circulation in the patient's lower limbs, and improving the effect of preventing lower limb venous thrombosis.

[0006] Preferably, the rotary flexion and extension assembly includes a universal coupling located on both sides of the box body and fixedly connected to the driving shaft, a fixed rod is fixedly provided at one end of the universal coupling, and the pedal is rotatably connected to the fixed rod, a ball is fixedly provided at one end of the fixed rod away from the universal coupling, a cross bar is provided on one side of the ball, a rotating ball groove matching the ball is opened at one end of the cross bar, a rotating shaft is provided on the side of the cross bar away from the fixed rod, the end of the rotating shaft away from the cross bar passes through the U-shaped frame, the rotating shaft passes through one end of the U-shaped frame and extends upward and is fixedly connected to the first gear, a second gear is provided on one side of the first gear, the second gear and the first gear are meshed with a tooth chain, one side of the second gear is connected to the output end of the first motor, both ends of the U-shaped frame are fixedly connected to the end of the driving shaft, and the rotating shaft and the cross bar are connected by an adjustment assembly; the rotary flexion and extension assembly can perform rotational bending and straightening training on the patient's foot, thereby realizing multi-directional rotation training of the patient's foot.

[0007] Preferably, the driving rotating assembly includes a worm wheel disposed inside the box and fixedly mounted on the driving shaft, one side of the worm wheel is meshed with a worm, one end of the worm is connected to the output end of the second motor; the driving rotating assembly can perform bending and straightening training on the patient's foot.

[0008] Preferably, two limit blocks are fixedly provided on the fixed rod, a sleeve is provided between the two limit blocks and on the fixed rod, and one side of the outer wall of the sleeve is fixedly connected to the back side of the pedal, so as to facilitate the rotational connection between the pedal and the fixed rod.

[0009] Preferably, the adjustment assembly includes threaded holes opened on the crossbar, the threaded holes are located at equal intervals on one side of the rotating ball groove, a threaded barrel is fixedly provided on one side of the upper side of the crossbar and located at one end of the rotating shaft, the threaded barrel and the threaded holes are threadedly connected by a locking bolt, and a screw handle is fixedly provided at one end of the locking bolt;

[0010] The adjustment component also includes a lifting rod arranged on one side of the U-shaped frame, both ends of the lifting rod are connected to the rotating shaft through bearing sleeves, a first screw rod is rotatably provided on the lower side of the lifting rod, and the end of the first screw rod away from the lifting rod is threaded through the U-shaped frame and extends downward to be fixedly connected to the first handle. The adjustment component can adjust the inclination angle of the fixed rod, change the straightening and bending angles of the pedal and the patient's foot, which can effectively increase the scope of use and is convenient for use with feet of different sizes.

[0011] Preferably, the fixing assembly includes an L-shaped rod fixedly arranged at both ends of the mounting frame, one end of the L-shaped rod is threadedly provided with a second screw rod, one end of the second screw rod extends upward and is rotatably connected to the extrusion block, and the end of the second screw rod away from the extrusion block is fixedly provided with a second handle; the fixing assembly can fix the mounting frame and facilitate the installation and fixing of the device at the end of the patient's bed.

[0012] Preferably, a Velcro is fixedly sewn on the outer side of the strap on one side of the pedal, and a Velcro matching the Velcro is fixedly sewn on the inner side of the strap on the other side of the pedal, thereby increasing the convenience of binding and disassembly between the patient's foot and the pedal.

[0013] Preferably, a placement groove is opened on one side above the cross bar, and the first motor is arranged inside the placement groove; it can support the first motor and avoid the first motor being placed in the air.

[0014] Preferably, a protective cover is fixedly provided on one side above the U-shaped frame, which can protect a part of the structure in the rotating flexion and extension assembly and increase the aesthetics of the device.

[0015] Preferably, a stepping mark is fixedly provided on one side of the pedal, and massage protrusions are provided on the side of the strap away from the Velcro and on the stepping mark. The stepping mark makes it convenient for the patient to step on the pedal, and at the same time, massage protrusions are provided on the stepping mark and the strap to facilitate massaging the soles and insteps of the patient, thereby increasing the comfort of the patient's foot binding.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention optimizes the existing training device for preventing lower limb venous thrombosis. By adding a mounting frame, a box, a pedal, a rotating flexion and extension component and a driving rotation component, the patient's feet can be passively trained, thereby avoiding the need for training assistance from medical staff or family members, reducing the labor intensity of the medical staff or family members, and at the same time improving the patient's compliance during passive training, thereby improving the training effect of the patient's lower limb ankle joints, better promoting the patient's lower limb blood circulation, and improving the effect of preventing lower limb venous thrombosis. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the internal structure of the protective cover in the present invention;

[0020] Figure 3 A bottom view of the U-shaped frame of the present invention;

[0021] Figure 4 It is a front view of the U-shaped frame in the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the rotary flexion-extension assembly in the present invention;

[0023] Figure 6 For the present invention Figure 5 Bottom view of

[0024] Figure 7 It is a schematic diagram of the structure in which the pedal and the fixing rod are separated in the present invention;

[0025] Figure 8 For the present invention Figure 7 Rear view of

[0026] Fig. 9 It is a structural schematic diagram of stepping on the pedal in the present invention;

[0027] Fig.10 It is a schematic diagram of the structure of the bandage in the present invention being spread out.

[0028] In the figure: 1. mounting frame; 2. housing; 3. driving shaft; 4. pedal; 5. universal joint; 6. fixing rod; 7. ball; 8. cross bar; 9. rotating ball groove; 10. rotating shaft; 11. U-shaped frame; 12. first gear; 13. second gear; 14. tooth chain; 15. first motor; 16. worm gear; 17. worm; 18. second motor; 19. limit block; 20. sleeve; 21. threaded hole; 22. threaded barrel; 23. locking bolt; 24. screw handle; 25. lifting rod; 26. first screw; 27. first grip; 28. L-shaped rod; 29. ​​second screw; 30. extrusion block; 31. second grip; 32. strap; 33. magic tape; 34. magic tape; 35. placement slot; 36. protective cover; 37. pedal mark; 38. massage protrusion. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 are within the scope of protection of the present invention.

[0030] Example 1

[0031] See also Figure 1-Figure 10A training device for preventing lower limb venous thrombosis shown in the figure includes a mounting frame 1, a box body 2, a pedal 4, a rotation flexion and extension component and a driving rotation component. Both ends of the mounting frame 1 are provided with fixing components fixed to both sides of the bed; a driving shaft 3 is penetrated at one end of the box body 2, and both ends of the driving shaft 3 are penetrated at both sides of the box body 2 and extend outward; the pedals 4 are respectively located on both sides of the box body 2 for the patient's feet to step on; straps 32 are fixed at equal distances on both sides of the pedal 4; the rotation flexion and extension component is installed on the back side of the pedal 4, drives the pedal 4 to rotate and performs rotation flexion and extension operations on the patient's foot placed on the pedal 4; the driving rotation component is installed on the driving shaft 3 and is located inside the box body 2, swings the pedal 4 back and forth, and makes the patient's foot on the pedal 4 straighten and flex and extend.

[0032] See also Figure 1-Figure 8 The rotating flexion and extension assembly shown in the figure includes a universal coupling 5 located on both sides of the box body 2 and fixedly connected to the driving shaft 3. A fixed rod 6 is fixedly arranged at one end of the universal coupling 5, and the pedal 4 is rotatably connected to the fixed rod 6. A ball 7 is fixedly arranged at one end of the fixed rod 6 away from the universal coupling 5. A cross bar 8 is arranged on one side of the ball 7. A rotating ball groove 9 matching the ball 7 is opened at one end of the cross bar 8. A rotating shaft 10 is arranged on one side of the cross bar 8 away from the fixed rod 6. The end of the rotating shaft 10 away from the cross bar 8 penetrates the U-shaped frame 11. The rotating shaft 10 penetrates one end of the U-shaped frame 11 and extends upward. The U-shaped frame 11 is fixedly connected to the first gear 12, a second gear 13 is provided on one side of the first gear 12, the second gear 13 and the first gear 12 are meshed and connected by a toothed chain 14, one side of the second gear 13 is connected to the output end of the first motor 15, both ends of the U-shaped frame 11 are fixedly connected to the end of the driving shaft 3, and the rotating shaft 10 and the cross bar 8 are connected by an adjustment component; two limit blocks 19 are fixedly provided on the fixed rod 6, a sleeve 20 is provided between the two limit blocks 19 and on the fixed rod 6, and one side of the outer wall of the sleeve 20 is fixedly connected to the back side of the pedal 4.

[0033] See also Figure 3-Figure 6 The driving rotating assembly shown in the figure includes a worm gear 16 arranged inside the box body 2 and fixedly mounted on the driving shaft 3. A worm 17 is meshed with one side of the worm gear 16, and one end of the worm 17 is connected to the output end of the second motor 18.

[0034] When using the training device for preventing lower limb venous thrombosis: first, install the mounting frame 1 on the bed portion of the patient's lying bed through the fixing assembly, and allow the patient's footsteps to contact the pedal 4, and then place the patient's feet on the pedal 4. At this time, the patient's feet are fixed by the straps 32 on both sides of the pedal 4 to achieve a fixed connection between the patient's feet and the pedal.

[0035] After the patient's foot is tied to the pedal 4, the training exercise method of rotating the foot is performed according to the training needs of the patient's foot; when the patient's foot needs to be moved back and forth to bend and straighten the foot, the driving rotation component is selected to move, and the second motor 18 therein is started. The start of the second motor 18 can drive the worm 17 at the output end to rotate, and the rotation of the worm 17 can drive the worm wheel 16 to rotate. Since the worm wheel 16 is fixedly installed on the driving shaft 3, the driving shaft 3 is driven to rotate. Since one side of the universal coupling 5 and the two ends of the U-shaped frame 11 are fixedly connected to the driving shaft 3, the U-shaped frame 11 and the universal coupling 5 can be driven to rotate synchronously while the driving shaft 3 rotates. At this time, the fixed rod 6 on the other side of the universal coupling 5 can be driven to rotate, thereby driving the pedal 4 mounted on the fixed rod 6 to rotate.

[0036] When selected, the second motor 18 uses a forward and reverse motor. When the second motor 18 rotates forward, it drives the driving shaft 3 to rotate toward the patient's side, thereby driving the pedal 4 to flip toward the side close to the patient, and at this time drives the patient's foot to bend toward the side close to the patient's leg, thereby realizing the bending exercise of the patient's foot; when the second motor 18 rotates reversely, it drives the driving shaft 3 to rotate toward the side away from the patient, and drives the pedal 4 to flip toward the side away from the patient, and at this time drives the patient's foot to stretch toward the side away from the patient's leg, and at this time realizes the straightening exercise of the patient's foot. When the second motor 18 rotates forward and reverse alternately, the driving shaft 3 can be rotated forward and reversely, thereby driving the pedal 4 to flip in different directions, and realizing the alternating bending and straightening exercise of the patient's foot. At this time, there is no need for medical staff or family members to perform manual training on the patient's foot, which effectively reduces the labor intensity of the staff and improves the efficiency of the patient's foot bending and straightening exercise.

[0037] After the patient's foot is tied to the pedal 4, the patient can also perform a rotation foot training exercise according to the patient's foot training needs; when the patient's foot needs to be trained by rotation flexion and extension exercise, the rotation flexion and extension assembly is started to start the first motor 15 in the rotation flexion and extension assembly. The start of the first motor 15 can drive the second gear 13 at the output end to rotate. Since the second gear 13 is meshed with the first gear 12 through the toothed chain 14, the first gear 12 can be driven to rotate through the toothed chain 14 when the second gear 13 rotates. The first gear 12 is fixedly mounted on the rotating shaft 10, which can drive the rotating shaft 10 to rotate. The rotation of the rotating shaft 10 can drive the cross bar 8 at one end to rotate. One end of the fixed rod 6 is connected to one end of the cross bar 8, and the ball 7 at one end of the fixed rod 6 is rotatably connected to the rotating ball groove 9 at one end of the cross bar 8. When the rotating shaft 10 drives the cross bar 8 to rotate, the fixed rod 6 can be driven to make an eccentric movement. At the same time, since one side of the universal coupling 5 at the other end of the fixed rod 6 is fixedly connected to the driving shaft 3, and the universal coupling 5 and the rotating shaft 10 are coaxially arranged, it can The cross bar 8 can limit one end of the fixed rod 6, and the rotating shaft 10 drives the cross bar 8 to make a circular motion. At this time, the cross bar 8 can drive the fixed rod 6 to make a circular motion at the same time, and make one end of the fixed rod 6 rotate with the universal coupling 5 as the center of the circle, so that the movement trajectory of the fixed rod 6 is a conical side trajectory, which can drive the pedal 4 to rotate along the same trajectory. Since one side of the pedal 4 is connected to the fixed rod 6 through the sleeve 20, it can be achieved that when the fixed rod 6 rotates similarly to the conical side trajectory, one side of the pedal 4 is always facing the patient's leg side, so that the fixed rod 6 The rotation of the fixed rod 6 drives the pedal 4 and the patient's foot on the pedal 4 to move synchronously. When the patient's foot rotates with the fixed rod 6, the patient's foot can be bent from the nearest end of the patient's leg to the farthest side away from the patient's leg, and then bent to the nearest end of the patient's leg. In this process, the patient's foot can be rotationally bent and straightened in a reciprocating cycle, which increases the convenience of patient training. During the rotational bending and straightening training, the patient's foot can be subjected to a large range of front-to-back and left-to-right rotational bending training, thereby improving the all-roundness of patient training.

[0038] When the device is used, the rotational flexion and extension component or the drive rotation component or the rotational flexion and extension component and the drive rotation component can be selected for use together according to the training intensity of the patient's foot. When the rotational flexion and extension component and the drive rotation component are used together, the patient's foot can be rotationally bent and straightened while the patient's foot is trained to bend and straighten forward and backward, which can increase the training intensity of the patient's foot, speed up the exercise of the patient's ankle joint, improve the blood flow in the patient's foot and lower limbs, and can effectively prevent the formation of venous thrombosis in the patient's lower limbs.

[0039] The device has a simple structure. By adding a mounting frame 1, a box 2, a pedal 4, a rotating flexion and extension component and a driving rotating component, the patient's feet can be passively trained, thereby avoiding the need for training assistance from medical staff or family members, reducing the labor intensity of medical staff or family members, and at the same time improving the patient's compliance during passive training, thereby improving the training effect of the patient's lower limb ankle joints, better promoting the patient's lower limb blood circulation, and improving the effect of preventing lower limb venous thrombosis.

[0040] Example 2

[0041] See also Figure 1-Figure 10 , this embodiment further explains Example 1, including the mounting frame 1, box body 2, pedal board 4, rotating flexion and extension assembly and driving rotating assembly shown in the figure, and fixing assemblies fixed to the two sides of the bed are provided at both ends of the mounting frame 1; a driving shaft rod 3 is penetrated at one end of the box body 2, and both ends of the driving shaft rod 3 are penetrated at both sides of the box body 2 and extend outward; the pedal boards 4 are respectively located on both sides of the box body 2 for the patient's feet to step on; straps 32 are fixed at equal distances on both sides of the pedal board 4; the rotating flexion and extension assembly is installed on the back side of the pedal board 4, drives the pedal board 4 to rotate and performs a rotating flexion and extension operation on the patient's foot placed on the pedal board 4; the driving rotating assembly is installed on the driving shaft rod 3 and is located inside the box body 2, and swings the pedal board 4 back and forth to straighten and flex the patient's foot on the pedal board 4;

[0042] See also Figure 1-Figure 8 The adjustment assembly shown in the figure includes threaded holes 21 opened on the crossbar 8, the threaded holes 21 are evenly spaced and located on one side of the rotating ball groove 9, a threaded barrel 22 is fixedly provided on one side of the upper side of the crossbar 8 and located at one end of the rotating shaft 10, the threaded barrel 22 and the threaded hole 21 are threadedly connected by a locking bolt 23, and a screw handle 24 is fixedly provided at one end of the locking bolt 23;

[0043] See also Figure 7-Figure 8 The adjustment assembly shown in the figure also includes a lifting rod 25 provided on one side of the U-shaped frame 11, both ends of the lifting rod 25 are connected to the rotating shaft 10 through bearing sleeves, and a first screw rod 26 is rotatably provided on one side below the lifting rod 25, and one end of the first screw rod 26 away from the lifting rod 25 is threadedly penetrated through the U-shaped frame 11 and extends downwardly to be fixedly connected to the first handle 27;

[0044] See also Figure 1 and Figure 2 The fixing assembly shown in the figure includes an L-shaped rod 28 fixed at both ends of the mounting frame 1, one end of the L-shaped rod 28 is threaded with a second screw 29, one end of the second screw 29 extends upward and is rotatably connected to an extrusion block 30, and a second handle 31 is fixed to the end of the second screw 29 away from the extrusion block 30.

[0045] In this embodiment, the rotating shaft 10 and the cross bar 8 are connected by an adjustment component, and the inclination angle of the fixed rod 6 can be adjusted, thereby changing the rotation angle of the fixed rod 6; when adjusting and using, first adjust the inclination angle of the fixed rod 6 according to the size of the patient's foot, and when adjusting, unscrew the locking bolt 23 threadedly connected between the threaded hole 21 and the threaded tube 22, and pinch the handle 24 when twisting, avoiding the use of tools and increasing the convenience of adjustment and use. The locking bolt 23 is unscrewed from the threaded hole 21 and the threaded tube 22, and the separation between the cross bar 8 and the threaded tube 22 is achieved, and the separation between the cross bar 8 and the rotating shaft 10 can be achieved.

[0046] After the cross bar 8 is separated from the rotating shaft 10, the first handle 27 at one end of the first screw rod 26 is rotated. The first handle 27 can drive the first screw rod 26 to rotate, so that the first screw rod 26 can move up and down on the U-shaped frame 11. When the first screw rod 26 moves up and down, it can drive the lifting rod 25 on one side of the U-shaped frame 11 to move up and down synchronously. The synchronous lifting of the lifting rod 25 can drive the rotating shafts 10 at both ends to move up and down synchronously. At this time, the threaded tube 22 at one end of the rotating shaft 10 can move closer to and farther from the cross bar 8.

[0047] When the distance between the cross bar 8 and the threaded tube 22 is adjustable, the cross bar 8 is moved to make one end of the fixing rod 6 rotate around the universal coupling 5. After the angle of the fixing rod 6 is adjusted to a suitable angle, the locking bolt 23 is screwed into the threaded hole 21 and the threaded tube 22. The fixation between the cross bar 8 and the threaded tube 22 can be achieved, thereby achieving the fixation between the cross bar 8 and the rotating shaft 10. The vertical inclination angle of the fixing rod 6 can be adjusted, which is convenient for use for different patients with different ankle bending degrees. At the same time, it can adapt to patients of different ages and foot sizes, and can effectively expand the scope of use.

[0048] The mounting frame 1 is provided with fixing components at both ends thereof, so that the mounting frame 1 can be fixedly mounted at the foot of a hospital bed on which a patient lies flat. When fixing, the L-shaped rods 28 at both ends of the mounting frame are first clamped on both sides of the hospital bed, and the ends of the L-shaped rods 28 are located below the hospital bed. Then, the second handle 31 is rotated. The rotation of the second handle 31 can drive the second screw rod 29 threadedly connected to the L-shaped rod 28 to rotate, so that the second screw rod 29 rises. When the second screw rod 29 rises, it can push the extrusion block 30 which is rotatably connected at one end. When the extrusion block 30 is squeezed with the bottom of the hospital bed, the rotation of the second screw rod 29 is stopped at this time, so that the mounting frame 1 can be fixedly mounted on the patient's bed, so that it is convenient for the patient to step on the pedal 4 with his feet when lying flat. The mounting frame 1 is connected to the hospital bed through the fixing component, so that the convenience of installation and disassembly between the mounting frame 1 and the hospital bed can be realized, and it is convenient for medical staff or the patient's family members to operate and use it.

[0049] Example 3

[0050] See also Figure 1-Figure 10 , this embodiment further explains other embodiments, including the mounting frame 1, box body 2, pedal board 4, rotation flexion and extension assembly and driving rotation assembly shown in the figure, both ends of the mounting frame 1 are provided with fixing assemblies fixed to both sides of the bed; a driving shaft rod 3 is penetrated at one end of the box body 2, and both ends of the driving shaft rod 3 are penetrated at both sides of the box body 2 and extend outward; the pedal boards 4 are respectively located on both sides of the box body 2 for the patient's feet to step on; straps 32 are fixed at equal distances on both sides of the pedal board 4; the rotation flexion and extension assembly is installed on the back side of the pedal board 4, drives the pedal board 4 to rotate and performs rotation flexion and extension operations on the patient's foot placed on the pedal board 4; the driving rotation assembly is installed on the driving shaft rod 3 and is located inside the box body 2, swings the pedal board 4 back and forth, and straightens and flexes and extends the patient's foot on the pedal board 4.

[0051] Please refer to Figure 7 Fig. 9 and Fig.10 The outer side of the strap 32 on one side of the pedal 4 shown in the figure is fixedly sewn with a Velcro 33, and the inner side of the strap 32 on the other side of the pedal 4 is fixedly sewn with a Velcro mother tape 34 matching the Velcro 33;

[0052] See also Figure 1 , Figure 2 and Figure 5 A placement groove 35 is provided on one side above the cross bar 8 shown in the figure, and the first motor 15 is arranged inside the placement groove 35; a protective cover 36 is fixedly provided on one side above the U-shaped frame 11.

[0053] See also Figure 7 , Fig. 9 and Fig.10 In the figure, a stepping mark 37 is fixedly provided on one side of the stepping pedal 4, and massage protrusions 38 are provided on the side of the strap 32 away from the Velcro 33 and on the stepping mark 37.

[0054] In this embodiment, by respectively providing Velcro sub-tapes 33 and Velcro mother-tapes 34 on the straps on both sides of the pedal 4, the straps 32 on both sides of the pedal 4 can be conveniently adhered to each other to bind the patient's feet placed on the pedal 4, thereby increasing the stability of the patient's feet stepping on the pedal 4 and facilitating the fixation between the patient's feet and the pedal 4; a stepping mark 37 is provided on the pedal 4 to facilitate medical staff, family members or patients to observe the stepping, and at the same time, massage protrusions 38 are provided on the stepping mark 37 and on one side of the strap 32, which facilitates the massage of the patient's soles and insteps when the rotating flexion and extension component rotates and flexes the patient's feet and when the rotating component is driven to straighten and bend the patient's feet, which can effectively promote blood flow in the patient's feet and reduce the formation of blood clots in the patient's feet.

[0055] A placement groove 35 is provided on the lifting rod 25, which can support the first motor 15, increase the safety of the placement and use of the first motor 15, and avoid the first motor 15 being placed in the air. A protective cover 36 is provided above the U-shaped frame 11, which can protect a part of the structure in the rotating flexion and extension component, increase the safety of the use of the rotating flexion and extension component, and at the same time achieve the aesthetic appearance of the device.

[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A training device for preventing lower extremity venous thrombosis, characterized in that: include: A mounting frame (1), wherein both ends of the mounting frame (1) are provided with fixing components fixed to both sides of the hospital bed; A box body (2), wherein a driving shaft (3) is penetrated at one end of the box body (2), and both ends of the driving shaft (3) penetrate two sides of the box body (2) and extend outwards; Pedals (4) are respectively located on both sides of the box (2) and are used for patients to step on their feet; straps (32) are fixedly provided at equal distances on both sides of the pedals (4); A rotational flexion and extension component is mounted on the back side of the pedal (4), driving the pedal (4) to rotate and perform a rotational flexion and extension operation on the foot of a patient placed on the pedal (4); A driving rotating assembly is mounted on the driving shaft (3) and is located inside the box (2), and swings the pedal (4) back and forth, so that the foot of the patient on the pedal (4) is straightened and flexed and extended.

2. A training device for preventing lower extremity venous thrombosis according to claim 1, characterized in that: The rotary flexion and extension assembly comprises a universal coupling (5) located on both sides of the box body (2) and fixedly connected to the driving shaft (3); a fixed rod (6) is fixedly provided at one end of the universal coupling (5); and the pedal (4) is rotatably connected to the fixed rod (6); a ball (7) is fixedly provided at one end of the fixed rod (6) away from the universal coupling (5); a cross bar (8) is provided on one side of the ball (7); a rotating ball groove (9) matching the ball (7) is provided at one end of the cross bar (8); a rotating shaft (10) is provided on the side of the cross bar (8) away from the fixed rod (6); and the rotating shaft The end of the rotating shaft (10) away from the cross bar (8) passes through the U-shaped frame (11); the end of the rotating shaft (10) passing through the U-shaped frame (11) extends upward and is fixedly connected to the first gear (12); a second gear (13) is provided on one side of the first gear (12); the second gear (13) and the first gear (12) are meshed and connected via a toothed chain (14); one side of the second gear (13) is connected to the output end of the first motor (15); both ends of the U-shaped frame (11) are fixedly connected to the end of the driving shaft (3); and the rotating shaft (10) and the cross bar (8) are connected via an adjustment component.

3. A training device for preventing lower extremity venous thrombosis according to claim 1, characterized in that: The driving rotating assembly comprises a worm wheel (16) arranged inside the housing (2) and fixedly mounted on the driving shaft (3); a worm (17) is meshed on one side of the worm wheel (16); and one end of the worm (17) is connected to an output end of a second motor (18).

4. A training device for preventing lower extremity venous thrombosis according to claim 2, characterized in that: Two limit blocks (19) are fixedly provided on the fixing rod (6), a sleeve (20) is sleeved between the two limit blocks (19) and located on the fixing rod (6), and one side of the outer wall of the sleeve (20) is fixedly connected to the back side of the pedal (4).

5. A training device for preventing lower extremity venous thrombosis according to claim 2, characterized in that: The adjustment assembly comprises threaded holes (21) formed on the crossbar (8), the threaded holes (21) being evenly spaced and located on one side of the rotating ball groove (9), a threaded barrel (22) being fixedly provided on one side above the crossbar (8) and located on one end of the rotating shaft (10), the threaded barrel (22) being threadedly connected to the threaded holes (21) via a locking bolt (23), and a screw handle (24) being fixedly provided at one end of the locking bolt (23); The adjustment assembly also includes a lifting rod (25) arranged on one side of the U-shaped frame (11), both ends of the lifting rod (25) are connected to the rotating shaft (10) through bearing sleeves, and a first screw rod (26) is rotatably provided on the lower side of the lifting rod (25), and one end of the first screw rod (26) away from the lifting rod (25) is threadedly penetrated through the U-shaped frame (11) and extends downward to be fixedly connected to a first handle (27).

6. A training device for preventing lower extremity venous thrombosis according to claim 1, characterized in that: The fixing assembly comprises an L-shaped rod (28) fixedly arranged at both ends of the mounting frame (1), one end of the L-shaped rod (28) being threadedly provided with a second screw rod (29), one end of the second screw rod (29) extending upwardly to be rotatably connected to an extrusion block (30), and one end of the second screw rod (29) away from the extrusion block (30) being fixedly provided with a second handle (31).

7. A training device for preventing lower extremity venous thrombosis according to claim 1, characterized in that: A Velcro (33) is fixedly sewn on the outer side of the binding strap (32) on one side of the pedal (4), and a Velcro (34) matching the Velcro (33) is fixedly sewn on the inner side of the binding strap (32) on the other side of the pedal (4).

8. A training device for preventing lower extremity venous thrombosis according to claim 2, characterized in that: A placement groove (35) is provided on one side above the crossbar (8), and the first motor (15) is arranged inside the placement groove (35).

9. A training device for preventing lower extremity venous thrombosis according to claim 2, characterized in that: A protective cover (36) is fixedly provided on one side above the U-shaped frame (11).

10. A training device for preventing lower extremity venous thrombosis according to claim 7, characterized in that: A stepping mark (37) is fixedly provided on one side of the stepping pedal (4), and a massage protrusion (38) is provided on the side of the binding strap (32) away from the Velcro (33) and on the stepping mark (37).

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