Joint movement device for pediatric postoperative rehabilitation

Abstract

The invention belongs to the technical field of postoperative rehabilitation, and discloses a joint movement device for postoperative rehabilitation of children, which comprises a joint leg guard, a shank leg guard and a thigh leg guard are slidably connected to two sides of the joint leg guard respectively, and the joint leg guard, the shank leg guard and the thigh leg guard are L-shaped. According to the child leg protection device, the shell, a time controller, a motor and the like are arranged, when the child leg protection device is used, the shell is placed on one side of the leg of a child, the starting time of the motor is controlled through the time controller, and the motor is started through the motor; then, the parents or the medical staff slightly lift the legs of the child and wait for starting of a motor, the motor drives a gear to rotate in an embedding groove after being started, then the thigh guard, the joint guard and the shank guard are pushed to be away from the shell and move to the position below the legs of the child, and at the moment, the thigh guard, the joint guard and the shank guard are driven to rotate; a family member or a medical worker can slowly put down the legs of the child to complete wearing.

Description

Technical Field

[0001] The present invention belongs to the technical field of postoperative rehabilitation, and particularly relates to a joint activity device for pediatric postoperative rehabilitation. Background Art

[0002] In the initial stage after pediatric knee surgery, in order to increase muscle strength and promote soft tissue recovery, appropriate joint training activities are required to promote blood circulation in the lower limbs and increase the recovery speed.

[0003] However, the base and bracket of the currently used CPM machine have a certain height. Since the bones of children are still in the growth stage, before use, the accompanying family members or medical staff need to lift the child's legs, then place the device under the legs and then fix the lower leg on the bracket. The overall wearing and removing time is relatively long and requires multiple people to cooperate, increasing the work intensity of medical staff. Moreover, due to the large movement range of the child's lower leg and joints during dressing, the possibility of joint dislocation in children is extremely increased. In addition, the existing CPM machine only fixes the lower limb on the pipe bracket through a fixing belt. When dealing with some children with nerve damage or limited motor function, it cannot relieve the discomfort caused by muscle weakness and wound swelling, and is not convenient for actual use. Summary of the Invention

[0004] The purpose of the present invention is to provide a joint activity device for pediatric postoperative rehabilitation to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A joint activity device for pediatric postoperative rehabilitation includes a joint leg guard. The two sides of the joint leg guard are respectively slidably connected with a lower leg guard and a thigh guard. The joint leg guard, the lower leg guard, and the thigh guard are all L-shaped, and a housing is arranged beside the joint leg guard, the lower leg guard, and the thigh guard. A driving motor and a time controller are fixedly installed on one side inside the housing. The output end of the driving motor is connected with a rotating shaft, and the other end of the rotating shaft penetrates through the thigh guard. A translation groove is opened on one side of the housing close to the lower leg guard. The translation groove is far away from the thigh guard, and a connecting rod is slidably arranged on the translation groove. The other end of the connecting rod penetrates through the lower leg guard. Engaging grooves are opened on the side walls of the rotating shaft and the connecting rod. Convex teeth are equidistantly installed inside the engaging grooves. Auxiliary grooves are opened inside the thigh guard and the lower leg guard. The auxiliary grooves are all beside the rotating shaft and the connecting rod, and a motor is fixedly installed inside the auxiliary grooves. The output end of the motor is connected with a gear. The gear is embedded inside the engaging groove, and the gear is meshed with the convex teeth.

[0006] Preferably, a chute is provided at the bottom of one side of the joint leg guard close to the outer shell. The chute is arc-shaped, and arc-shaped blocking strips are symmetrically installed on both sides of the inner wall of the chute. Slide bars are fixedly installed on one side of the calf leg guard and the thigh leg guard close to the chute, and the slide bars are slidably fitted inside the chute.

[0007] Preferably, an arc-shaped rotating groove is provided at the top of one side of the translation groove away from the driving motor. A rotating hole is provided at the top of the outer shell. The rotating hole is L-shaped and communicates with the rotating groove. An adjusting assembly is provided inside the outer shell, and the adjusting assembly is used to control the fixed connection between the connecting rod and the rotating shaft.

[0008] Preferably, the adjusting assembly includes a linear motor fixedly installed inside the outer shell. A transmission plate is fitted and fixed on the linear motor. The transmission plate is slidably arranged on the rotating shaft. A fitting block is fixedly installed on one side of the transmission plate close to the connecting rod. The fitting block is square, and a connection groove is provided at one end of the connecting rod away from the calf leg guard.

[0009] Preferably, two limiting plates are fixedly installed at one end of the connecting rod away from the calf leg guard. The length of the limiting plates is greater than the widths of the translation groove and the rotating groove, and the two limiting plates are respectively located on both sides of the translation groove and the rotating groove.

[0010] Preferably, clamping grooves are provided at the tops of the joint leg guard, the calf leg guard, and the thigh leg guard. Insertion plates are symmetrically installed on both sides of the inner wall of the clamping groove. An L-shaped cover plate is fitted inside the clamping groove. Slots are symmetrically provided on both sides of the cover plate, and the insertion plates are fitted inside the slots.

[0011] Preferably, a U-shaped heat preservation layer is provided inside the cover plate. A sponge layer is provided on the joint leg guard, the calf leg guard, and the thigh leg guard. The sponge layer is located between the jacks.

[0012] Preferably, jacks are symmetrically provided on both sides of the heat preservation layer. A plurality of warm patches are fitted inside the jacks.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) The present invention is provided with a housing, a time controller, a motor, etc. When in use, the housing is placed on one side of the child's leg. The start time of the motor is controlled by the time controller. Subsequently, the parent or medical staff slightly lift the child's leg and wait for the motor to start. After the motor starts, it drives the gear to rotate inside the fitting groove, thereby pushing the thigh guard, joint guard, and calf guard away from the housing and moving them under the child's leg. At this time, the family member or medical staff can slowly lower the child's leg to complete the wearing.

[0015] (2) The present invention is provided with, and etc. After placing the child's leg on the calf guard, joint guard, and thigh guard, the L-shaped cover plates are successively inserted into the card slots on the surfaces of the corresponding calf guard, joint guard, and thigh guard, and the cover plates are fixed on the multiple guards by fitting connection to wrap the child's leg. The child's leg is wrapped by the heat preservation layer and the sponge layer to reduce the influence of friction on the child's skin. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present invention;

[0017] Figure 2 is a horizontal cross-sectional view of the present invention;

[0018] Figure 3 is a connection diagram of the joint guard, calf guard, and thigh guard of the present invention;

[0019] Figure 4 is an external view of the slide bar of the present invention;

[0020] Figure 5 is Figure 1 an enlarged view of part A in;

[0021] Figure 6 is Figure 2 an enlarged view of part B in.

[0022] In the figure: 1. Housing; 2. Rotation hole; 3. Joint guard; 4. Translation groove; 5. Rotation groove; 6. Limiting plate; 7. Connecting rod; 8. Sponge layer; 9. Cover plate; 10. Calf guard; 11. Insertion hole; 12. Heat preservation layer; 13. Thigh guard; 14. Rotation shaft; 15. Auxiliary groove; 16. Insertion plate; 17. Card slot; 18. Gear; 19. Slide bar; 20. Slide groove; 21. Blocking bar; 22. Motor; 23. Convex tooth; 24. Fitting groove; 25. Driving motor; 26. Time controller; 27. Linear motor; 28. Slot; 29. Connection groove; 30. Fitting block; 31. Transmission plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1 - 3 As shown in the figure, the present invention provides the following technical solution: A joint activity device for pediatric postoperative rehabilitation includes a joint leg guard 3. The two sides of the joint leg guard 3 are respectively slidably connected with a calf leg guard 10 and a thigh leg guard 13. The joint leg guard 3, the calf leg guard 10, and the thigh leg guard 13 are all L-shaped. And a housing 1 is arranged beside the joint leg guard 3, the calf leg guard 10, and the thigh leg guard 13. A drive motor 25 and a time controller 26 are fixedly installed on one side inside the housing 1. The output end of the drive motor 25 is connected to a rotating shaft 14. The other end of the rotating shaft 14 penetrates through the thigh leg guard 13. A translation groove 4 is opened on one side of the housing 1 close to the calf leg guard 10. The translation groove 4 is far away from the thigh leg guard 13. And a connecting rod 7 is slidably arranged on the translation groove 4. The other end of the connecting rod 7 penetrates through the calf leg guard 10. Engaging grooves 24 are opened on the side walls of the rotating shaft 14 and the connecting rod 7. Convex teeth 23 are equidistantly installed inside the engaging grooves 24. Auxiliary grooves 15 are opened inside the thigh leg guard 13 and the calf leg guard 10. The auxiliary grooves 15 are all beside the rotating shaft 14 and the connecting rod 7. And a motor 22 is fixedly installed inside the auxiliary grooves 15. The output end of the motor 22 is connected to a gear 18. The gear 18 is embedded inside the engaging groove 24. And the gear 18 is meshed with the convex teeth 23.

[0025] With the above technical solution, during use, place the device on one side of the child's leg so that the rotating shaft 14 is located between the housing 1 and the child's leg, and make the end face of the rotating shaft 14 away from the housing 1 contact the child's leg skin. Then, delay the start of the motor 22 through the time controller 26. During this period, the parent or medical staff can slightly lift the child's leg and wait for the start of the motor 22. After the motor 22 starts, it drives the gear 18 to rotate inside the engaging groove 24. Since the rotating shaft 14 is penetrated through the thigh guard 13, the downward pressure of the thigh guard 13 acts on the rotating shaft 14. When the gear 18 rotates, it uses the meshing connection between the gear 18 and the convex teeth 23 to drive the gear 18 to move away from the housing 1 inside the engaging groove 24. Furthermore, the thigh guard 13, the joint guard 3, and the calf guard 10 are synchronously driven by the fixed motor 22 to slide on the rotating shaft 14 and gradually move away from the housing 1. When the gear 18 moves to the end of the engaging groove 24 away from the housing 1, the thigh guard 13, the joint guard 3, and the calf guard 10 also move to the lower part of the child's leg. At this time, the family member or medical staff can slowly lower the child's leg so that the child's calf, joint, and thigh are in contact with the calf guard 10, the joint guard 3, and the thigh guard 13 respectively. Subsequently, fix it through the cover plate 9 to complete the wearing. The whole process can be carried out by a single person, and the moving range of the child's leg is small, reducing the possibility of the child's joint dislocation.

[0026] Further, an arc-shaped sliding groove 20 is opened at the bottom of the side of the joint guard 3 close to the housing 1. The sliding groove 20 is arc-shaped, and arc-shaped blocking strips 21 are symmetrically installed on both sides of the inner wall of the sliding groove 20. Slide strips 19 are fixedly installed on the sides of the calf guard 10 and the thigh guard 13 close to the sliding groove 20. The slide strips 19 are slidably fitted inside the sliding groove 20. An arc-shaped rotating groove 5 is opened at the top of the side of the translation groove 4 away from the drive motor 25. A rotating hole 2 is opened at the top of the housing 1. The rotating hole 2 is L-shaped and communicates with the rotating groove 5. An adjusting assembly is arranged inside the housing 1. The adjusting assembly is used to control the fixed connection between the connecting rod 7 and the rotating shaft 14. The adjusting assembly includes a linear motor 27. The linear motor 27 is fixedly installed inside the housing 1, and a transmission plate 31 is fitted and fixed on the linear motor 27. The transmission plate 31 is slidably arranged on the rotating shaft 14, and a fitting block 30 is fixedly installed on the side of the transmission plate 31 close to the connecting rod 7. The fitting block 30 is square, and a connecting groove 29 is opened at one end of the connecting rod 7 away from the calf guard 10.

[0027] Please refer to Figures 1 - 4 and Figure 6When in use, since the joint leggings 3 are rotatably connected to the thigh leggings 13 and the calf leggings 10 respectively through the sliding connection of the slide bar 19 and the slide groove 20, during training, the thigh leggings 13 are driven by the driving motor 25 to rotate with the rotating shaft 14 as the center of the circle, and the rotation of the thigh leggings 13 drives the joint leggings 3 to slowly move upward. At this time, both slide bars 19 slide inside the slide groove 20, thereby driving the end of the calf leggings 10 close to the joint leggings 3 to move up synchronously with the joint leggings 3, so that the calf leggings 10 gradually changes to an inclined state, and pulls the end of the calf leggings 10 away from the joint leggings 3 to move in the direction of the joint leggings 3, forcing the connecting rod 7 to rotate and slide in the direction of the driving motor 25 inside the translation groove 4, so that the calf leggings 10, the joint leggings 3 and the thigh leggings 13 are changed from the original straight line to an inverted V shape, and the knee flexion training can be completed.

[0028] Before performing straight leg raising training, the transmission plate 31 needs to be driven by the linear motor 27 to move in the direction of the leg guard so that the engaging block 30 is engaged with the connecting groove 29. Since the engaging block 30 is a square, the driving motor 25 is started at this time, and the connecting rod 7 can be driven by the transmission plate 31 to move through the rotating hole 2 to the outside of the shell 1 with the rotating axis 14 as the center, and the connecting rod 7 is rotated upward through the rotating groove 5 and finally moves to the outside of the shell 1, so that the calf leg guard 10, the joint leg guard 3 and the thigh leg guard 13 are connected with the transmission plate 31 and rotate in a straight line, thereby completing the straight leg raising training.

[0029] At night, the drive motor 25 is started regularly through the time controller 26 to adjust the posture of the legs at intervals, so that the legs can move back and forth between straightening and laying flat, thereby preventing the problem of poor blood return caused by long-term lifting, and further improving the comfort of children's night rest.

[0030] Furthermore, two limit plates 6 are fixedly installed on one end of the connecting rod 7 away from the calf guard 10. The length of the limit plate 6 is greater than the width of the translation slot 4 and the rotation slot 5, and the two limit plates 6 are respectively located on both sides of the translation slot 4 and the rotation slot 5.

[0031] Please refer to Figures 1 - 2 By setting two limit plates 6, the connecting rod 7 cannot be separated from the shell 1, preventing the connecting rod 7 from extending and retracting inside the translation slot 4 when the motor 22 drives the gear 18 to rotate, causing the calf guard 10 to be unable to move.

[0032] Furthermore, card slots 17 are provided at the tops of the joint leg guard 3, the calf leg guard 10, and the thigh leg guard 13. Insertion plates 16 are symmetrically installed on both sides of the inner wall of the card slot 17, and an L-shaped cover plate 9 is fitted inside the card slot 17. Slots 28 are symmetrically provided on both sides of the cover plate 9, and the insertion plates 16 are fitted inside the slots 28. A U-shaped heat preservation layer 12 is arranged inside the cover plate 9. A sponge layer 8 is provided on the joint leg guard 3, the calf leg guard 10, and the thigh leg guard 13. The sponge layer 8 is located on both sides of the heat preservation layer 12 between the jacks 11. Multiple heat patches are fitted inside the jacks 11.

[0033] Please refer to Figure 1 , Figure 3 and Figure 5 , after placing the child's leg on the calf leg guard 10, the joint leg guard 3, and the thigh leg guard 13, the L-shaped cover plate 9 is gradually inserted into the card slot 17 on the surfaces of the corresponding calf leg guard 10, joint leg guard 3, and thigh leg guard 13, so that the insertion plates 16 are inserted into the slots 28 on both sides of the cover plate 9. The cover plate 9 is fixed on the multiple leg guards by the fitting connection of the insertion plates 16 and the slots 28, so that the heat preservation layer 12 and the sponge layer 8 wrap the child's leg. While completing the fixation, the influence of the friction between the leg guard and the inner wall of the cover plate 9 and the child's skin during training is reduced.

[0034] In addition, before use, the heat patches can be gradually stuffed into the jacks 11, and the child's joints and legs are hot compress by the heat patches and the heat preservation layer 12, preventing the external moisture from directly contacting the joints and thus increasing the discomfort of joint swelling, ensuring that the postoperative area is in a dry state, promoting healing and reducing potential complications.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A joint activity device for rehabilitation after pediatric surgery, characterized in that : It comprises a joint leggings (3), the two sides of the joint leggings (3) are respectively slidably connected with a calf leggings (10) and a thigh leggings (13), the joint leggings (3), the calf leggings (10) and the thigh leggings (13) are all L-shaped, and a shell (1) is arranged beside the joint leggings (3), the calf leggings (10) and the thigh leggings (13), a driving motor (25) and a time controller (26) are fixedly installed on one side of the inner part of the shell (1), the output end of the driving motor (25) is connected with a rotating shaft (14), the other end of the rotating shaft (14) is passed through the thigh leggings (13), a translation groove (4) is opened on the side of the shell (1) close to the calf leggings (10), and the translation groove (4) is far away from the thigh leggings (13), and A connecting rod (7) is slidably arranged on the translation groove (4), and the other end of the connecting rod (7) is inserted into the calf leg guard (10). The rotating shaft (14) and the side wall of the connecting rod (7) are provided with an engaging groove (24), and convex teeth (23) are evenly installed inside the engaging groove (24). Auxiliary grooves (15) are provided inside the thigh leg guard (13) and the calf leg guard (10), and the auxiliary grooves (15) are located beside the rotating shaft (14) and the connecting rod (7), and a motor (22) is fixedly installed inside the auxiliary groove (15), and the output end of the motor (22) is connected to a gear (18), and the gear (18) is embedded in the engaging groove (24), and the gear (18) is meshed with the convex teeth (23).

2. A joint movement device for postoperative rehabilitation of children according to claim 1, characterized in that A slide groove (20) is provided at the bottom of the joint leg guard (3) on one side close to the shell (1); the slide groove (20) is arc-shaped, and arc-shaped blocking strips (21) are symmetrically installed on both sides of the inner wall of the slide groove (20); a slide bar (19) is fixedly installed on one side of the calf leg guard (10) and the thigh leg guard (13) close to the slide groove (20); the slide bar (19) is slidably engaged in the interior of the slide groove (20).

3. A joint movement device for postoperative rehabilitation of children according to claim 2, characterized in that The translation slot (4) is provided with an arc-shaped rotation slot (5) at the top of one side away from the driving motor (25); the top of the housing (1) is provided with a rotation hole (2); the rotation hole (2) is L-shaped and is connected to the rotation slot (5); an adjustment component is provided inside the housing (1); the adjustment component is used to control the fixed connection between the connecting rod (7) and the rotating shaft (14).

4. A joint movement device for postoperative rehabilitation of children according to claim 3, characterized in that The adjustment component comprises a linear motor (27), the linear motor (27) is fixedly mounted inside the housing (1), and a transmission plate (31) is fixedly mounted on the linear motor (27), the transmission plate (31) is slidably mounted on the rotating shaft (14), and a mating block (30) is fixedly mounted on the side of the transmission plate (31) close to the connecting rod (7), the mating block (30) is square, and a connecting groove (29) is provided at one end of the connecting rod (7) away from the calf guard (10).

5. A joint movement device for postoperative rehabilitation of children according to claim 4, characterized in that Two limit plates (6) are fixedly mounted on one end of the connecting rod (7) away from the calf guard (10), the length of the limit plates (6) is greater than the width of the translation slot (4) and the rotation slot (5), and the two limit plates (6) are respectively located on both sides of the translation slot (4) and the rotation slot (5).

6. A joint movement device for postoperative rehabilitation of children according to claim 5, characterized in that The joint leg guard (3), the calf leg guard (10) and the thigh leg guard (13) are all provided with a slot (17) at the top, and plug plates (16) are symmetrically installed on both sides of the inner wall of the slot (17), and an L-shaped cover plate (9) is embedded in the interior of the slot (17), and slots (28) are symmetrically provided on both sides of the cover plate (9), and the plug plates (16) are embedded in the interior of the slots (28).

7. A joint movement device for postoperative rehabilitation of children according to claim 6, characterized in that A U-shaped heat-insulating layer (12) is arranged inside the cover plate (9), and a sponge layer (8) is arranged on the joint leg guard (3), the calf leg guard (10) and the thigh leg guard (13), and the sponge layer (8) is located between the insertion holes (11).

8. The joint movement device for postoperative rehabilitation of children according to claim 7, characterized in that The insulation layer (12) has symmetrical insertion holes (11) on both sides, and a plurality of heating pads are embedded inside the insertion holes (11).

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