Long-term bedridden patient leg passive exercise auxiliary training device

Abstract

This utility model discloses a passive leg movement assistive training device for long-term bedridden patients, belonging to the field of rehabilitation device technology. It addresses the problems of training devices easily generating significant vibrations during use, leading to displacement, and the difficulty in flexibly adjusting the leg support height according to the patient's specific condition. The device includes a base rod with two parallel sleeves fixedly connected to its top surface. Sleeve rods are slidably connected inside each sleeve, and the same training mechanism is installed on both sleeve rods. A stabilizing component is installed on the base rod. This utility model uses a handwheel to drive a lead screw, causing a counterweight to move an H-shaped friction plate downwards to contact the ground. The cooperation between the H-shaped friction plate and the counterweight improves the stability of the training device during use. An electric actuator adjusts the length of the sleeve rods sliding out of the sleeves, thereby adjusting the height of the two support belts, allowing for adjustment of the leg support height according to the patient's specific condition.

Description

Technical Field

[0001] This utility model relates to the field of rehabilitation device technology, specifically a passive movement assistive training device for the legs of long-term bedridden patients. Background Technology

[0002] The passive leg movement assistive training device for long-term bedridden patients is a rehabilitation device designed specifically for patients who are bedridden for a long time due to illness, injury, or physical decline. It aims to help patients perform passive leg movements through mechanical assistance, thereby preventing or alleviating complications such as muscle atrophy, joint stiffness, and deep vein thrombosis in the lower limbs caused by long-term bed rest, and promoting the recovery of lower limb function.

[0003] Existing leg trainers are complex to operate and lack stability during use. They are prone to significant vibrations during training, which can cause the trainer to shift and affect its effectiveness. At the same time, it is difficult to flexibly adjust the leg support height according to the patient's specific condition, which cannot effectively meet the patient's personalized training needs. This causes inconvenience to the patient's passive leg training and affects the training effect.

[0004] Therefore, there is a need for a passive leg movement assistive training device for long-term bedridden patients to solve the problems of existing technologies, such as the large vibrations that cause the training device to shift during use, and the difficulty in flexibly adjusting the leg support height according to the patient's specific situation. Utility Model Content

[0005] The purpose of this invention is to provide a passive leg movement assistive training device for long-term bedridden patients, in order to solve the problems of existing training devices that are prone to large vibrations during use, causing the training device to shift, and that it is not easy to flexibly adjust the leg support height according to the specific situation of the patient.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a passive leg movement assistive training device for long-term bedridden patients, including a base rod, two parallel sleeves fixedly connected to the top surface of the base rod, sleeve rods slidably connected inside the two sleeves, the same training mechanism being provided on the two sleeve rods, and a stabilizing component being provided on the base rod; The training mechanism includes an alternating lifting shaft and a protective shell. The alternating lifting shaft is rotatably connected between the outer walls of two adjacent sleeves. Two parallel rotating sleeves are rotatably connected to the outer surface of the alternating lifting shaft. Placement belts are fixedly connected to the bottom of the outer surfaces of the two rotating sleeves. The outer wall of the front end of the alternating lifting shaft rotatably passes through the outer wall of the front end of one of the sleeves and is coaxially fixedly connected to a driven bevel gear. The protective shell is fixedly connected to the outer wall of the front end of one of the sleeves. A servo motor is installed on the inner wall of the bottom surface of the protective shell. A driving bevel gear is coaxially fixedly connected to the output end of the servo motor.

[0007] It should be noted in the solution that the stabilizing component includes an H-shaped friction plate, which is set at the bottom of the base rod. A counterweight is fixedly connected to the top surface of the longitudinal section of the H-shaped friction plate. A lead screw is rotatably connected to the top surface of the counterweight. The top end of the lead screw is threaded through the top surface of the base rod and coaxially fixedly connected to a handwheel. A sliding rod is fixedly connected to the top surface of the counterweight. The top end of the sliding rod slides through the top surface of the base rod and coaxially fixedly connected to a limit plate.

[0008] It is worth noting that both ends of the bottom surface of the base rod are fixedly connected to mounting rods, and both sides of the bottom surface of the two mounting rods are equipped with casters.

[0009] Furthermore, it should be noted that two symmetrically distributed electric actuators are installed on the top surface of the base rod, and a push handle is fixedly connected to the center of the outer right side wall of the base rod.

[0010] In a preferred embodiment, the two rotating sleeves are at different horizontal heights, and the driven bevel gear is meshed with the driving bevel gear.

[0011] In a preferred embodiment, the two transverse sections of the H-shaped friction plate are located on the bottom surfaces of the two mounting rods, and the two electric actuators are fixedly connected to the two sleeve rods via connecting blocks.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The handwheel drives the lead screw to rotate, causing the counterweight to move the H-shaped friction plate downwards to contact the ground. The cooperation between the H-shaped friction plate and the counterweight improves the stability of the trainer during use. The operation is simple and effectively avoids the problem of the trainer shifting due to large vibrations during use.

[0013] 2. The length of the sleeve extending out of the sleeve is adjusted by the electric actuator, thereby adjusting the height of the two placement belts. The leg support height can be adjusted according to the patient's specific condition to achieve the best training effect, improve the applicability of the trainer, and effectively avoid the problem that the trainer is not easy to flexibly adjust the leg support height according to the patient's specific situation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall front view of the present invention; Figure 2 This is a side view of the alternating lifting axis structure of this utility model; Figure 3 This is a side view sectional structural diagram of the protective shell of this utility model; Figure 4 This is a side view of the bottom rod structure of this utility model.

[0015] The following are the labeling elements in the diagram: 1. Base rod; 2. Sleeve; 3. Sleeve rod; 4. Training mechanism; 41. Alternating lifting shaft; 42. Rotating sleeve; 43. Placement belt; 44. Driven bevel gear; 45. Protective shell; 46. Servo motor; 47. Driven bevel gear; 5. Stabilizing component; 51. H-shaped friction plate; 52. Counterweight; 53. Lead screw; 54. Handwheel; 55. Slide rod; 56. Limiting plate; 6. Mounting rod; 7. Universal wheel; 8. Electric actuator; 9. Push handle. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example: Figures 1-4 As shown, this utility model provides a technical solution, including a base rod 1, with two parallel sleeves 2 fixedly connected to the top surface of the base rod 1, and sleeve rods 3 slidably connected inside the two sleeves 2. The same training mechanism 4 is provided on the two sleeve rods 3, and a stabilizing component 5 is provided on the base rod 1. The training mechanism 4 includes an alternating lifting shaft 41 and a protective shell 45. The alternating lifting shaft 41 is rotatably connected between the outer walls of two sleeve rods 3 at their adjacent ends. Two parallel rotating sleeves 42 are rotatably connected to the outer surface of the alternating lifting shaft 41. Placement belts 43 are fixedly connected to the bottom of the outer surfaces of the two rotating sleeves 42. The outer wall of the front end of the alternating lifting shaft 41 rotatably passes through the outer wall of the front end of one of the sleeve rods 3 and is coaxially fixedly connected to a driven bevel gear 44. The protective shell 45 is fixedly connected to the outer wall of the front end of one of the sleeve rods 3. A servo motor 46 is installed on the inner wall of the bottom surface of the protective shell 45. The output end of the servo motor 46 is coaxially fixedly connected to an active bevel gear 47.

[0018] Further as Figure 1 and Figure 4 As shown, it is worth noting that the stabilizing component 5 includes an H-shaped friction plate 51, which is located at the bottom of the base rod 1. A counterweight 52 is fixedly connected to the top surface of the longitudinal section of the H-shaped friction plate 51. A lead screw 53 is rotatably connected to the top surface of the counterweight 52. The top end of the lead screw 53 is threaded through the top surface of the base rod 1 and coaxially fixedly connected to a handwheel 54. A sliding rod 55 is fixedly connected to the top surface of the counterweight 52. The top end of the sliding rod 55 slides through the top surface of the base rod 1 and coaxially fixedly connected to a limit plate 56.

[0019] Further as Figure 1 and Figure 4As shown, it is worth noting that both ends of the bottom surface of the base rod 1 are fixedly connected to mounting rods 6, and casters 7 are installed on both sides of the bottom surface of the two mounting rods 6.

[0020] Further as Figure 1 As shown, it is worth noting that two symmetrically distributed electric actuators 8 are installed on the top surface of the base rod 1, and a push handle 9 is fixedly connected to the center of the outer right side wall of the base rod 1.

[0021] Further as Figure 2 and Figure 3 As shown, it is worth noting that the two rotating sleeves 42 have different horizontal heights. Through the cooperation of the alternating lifting shaft 41 and the rotating sleeve 42, the two placement belts 43 are driven to move upward alternately, thereby raising the patient's legs placed on the placement belts 43. The driven bevel gear 44 and the driving bevel gear 47 are meshed and connected, which facilitates the rotation of the alternating lifting shaft 41 by the servo motor 46.

[0022] Further as Figure 1 , Figure 2 and Figure 4 As shown, it is worth noting that the two transverse sections of the H-shaped friction plate 51 are located on the bottom surface of the two mounting rods 6 respectively. The H-shaped friction plate 51 is hidden by the two mounting rods 6 to avoid interference from the H-shaped friction plate 51 when the trainer moves. The two electric push rods 8 are fixedly connected to the two sleeve rods 3 through connecting blocks. The length of the sleeve rods 3 extending out of the sleeve 2 is controlled by pushing the electric push rods 8.

[0023] In summary: When using this trainer, first push it to the bedside using the push handle 9, then turn the handwheel 54 to drive the lead screw 53 to rotate. Under the action of the thread, the lead screw 53 pushes the counterweight 52 to move the H-shaped friction plate 51 downward. When the limiting plate 56 at the top of the slide rod 55 is in contact with the top surface of the bottom rod 1, the bottom surface of the H-shaped friction plate 51 comes into contact with the ground, thus fixing the trainer. The H-shaped friction plate 51 and the counterweight 52 cooperate to improve the stability of the trainer during use. The operation is simple and effectively avoids the problem of the trainer shifting due to large vibrations during use.

[0024] Next, the patient's legs are placed in the two placement belts 43 respectively. Then, according to the patient's specific condition, the two electric push rods 8 are activated to push the two sleeve rods 3 outward from the sleeves 2, raising the patient's legs appropriately. Then, the servo motor 46 is activated to drive the active bevel gear 47 to rotate. Under meshing action, the active bevel gear 47 drives the driven bevel gear 44 to rotate. The driven bevel gear 44 drives the alternating lifting shaft 41 to rotate. The rotating alternating lifting shaft 41 drives the two placement belts 43 to alternately rise and fall, thereby causing the patient's legs to alternately rise and fall, realizing passive assisted training of the patient's legs. This effectively avoids the problem that the trainer is not easy to flexibly adjust the leg support height according to the patient's specific situation.

[0025] The servo motor 46 and the electric actuator 8 can be purchased from the market and are mature technologies in this field, which have been fully disclosed. Therefore, they will not be described again in the specification.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A passive leg movement assistive training device for long-term bedridden patients, including a base rod (1), characterized in that: The bottom rod (1) has two parallel sleeves (2) fixedly connected to its top surface. The two sleeves (2) are slidably connected to each other. The two sleeves (3) are equipped with the same training mechanism (4). The bottom rod (1) is equipped with a stabilizing component (5). The training mechanism (4) includes an alternating lifting shaft (41) and a protective shell (45). The alternating lifting shaft (41) is rotatably connected between the outer walls of two sleeve rods (3) at their near ends. Two rotating sleeves (42) are rotatably connected to the outer surface of the alternating lifting shaft (41) in parallel distribution. Placement belts (43) are fixedly connected to the bottom of the outer surfaces of the two rotating sleeves (42). The outer wall of the front end of the alternating lifting shaft (41) rotatably passes through the outer wall of the front end of one of the sleeve rods (3) and is coaxially fixedly connected to a driven bevel gear (44). The protective shell (45) is fixedly connected to the outer wall of the front end of one of the sleeve rods (3). A servo motor (46) is installed on the inner wall of the bottom surface of the protective shell (45). The output end of the servo motor (46) is coaxially fixedly connected to an active bevel gear (47).

2. The passive leg movement assistive training device for long-term bedridden patients according to claim 1, characterized in that: The stabilizing component (5) includes an H-shaped friction plate (51), which is located at the bottom of the base rod (1). A counterweight (52) is fixedly connected to the top surface of the longitudinal section of the H-shaped friction plate (51). A lead screw (53) is rotatably connected to the top surface of the counterweight (52). A handwheel (54) is fixedly connected to the top of the lead screw (53) through the top surface of the base rod (1) and coaxially. A sliding rod (55) is fixedly connected to the top surface of the counterweight (52). A limit plate (56) is fixedly connected to the top of the sliding rod (55) through the top surface of the base rod (1) and coaxially.

3. The passive leg movement assistive training device for long-term bedridden patients according to claim 2, characterized in that: The bottom rod (1) is fixedly connected to two ends of the bottom surface with mounting rods (6), and universal wheels (7) are installed on both sides of the bottom surface of the two mounting rods (6).

4. The passive leg movement assistive training device for long-term bedridden patients according to claim 3, characterized in that: Two symmetrically distributed electric actuators (8) are installed on the top surface of the bottom rod (1), and a push handle (9) is fixedly connected to the center of the outer wall on the right side of the bottom rod (1).

5. The passive leg movement assistive training device for long-term bedridden patients according to claim 4, characterized in that: The two rotating sleeves (42) are at different horizontal heights, and the driven bevel gear (44) is meshed with the driving bevel gear (47).

6. The passive leg movement assistive training device for long-term bedridden patients according to claim 5, characterized in that: The two transverse sections of the H-shaped friction plate (51) are located on the bottom surfaces of the two mounting rods (6), and the two electric push rods (8) are fixedly connected to the two sleeve rods (3) through connecting blocks.

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