Auxiliary device for lifting lower limbs

Abstract

The utility model discloses a lower limb lifting auxiliary device, which comprises a bracket and a lifting mechanism, and is characterized in that the lifting mechanism comprises a rope fixing mechanism, a fixed box body, a sliding base, a pulley block and a leg fixing mechanism, a fixed box is arranged in the middle of the top of the support, a sliding groove is formed in the fixed box, a sliding base is arranged in the sliding groove, a pulley block is arranged below the sliding base and comprises a fixed pulley and a movable pulley, a leg fixing mechanism is arranged below the movable pulley, and a rope fixing mechanism is arranged in front of the fixed box. Through the arrangement of the support and the lifting mechanism, a patient can manually lift the lower limbs by himself / herself and hover after the lower limbs are lifted, the pulley block and the displacement compensation structure are arranged in the mechanism, the upper limbs of the patient can be helped to save labor in the exercise process, body deviation caused by lifting of the lower limbs is avoided, and the comfortable and labor-saving exercise purpose is achieved.

Description

Technical Field

[0001] The utility model belongs to the field of medical rehabilitation equipment, and in particular relates to a lower limb lifting auxiliary device. Background Art

[0002] The straight leg raising exercise is an important and critical exercise for orthopedic patients during their recovery period. It can effectively speed up the patient's recovery and ensure a good surgical outcome. The main function of the straight leg raising exercise is to promote blood circulation in bedridden patients, thereby reducing inflammation, reducing edema, and avoiding nerve root adhesions. It also plays a decisive role in activating quadriceps contraction, strengthening quadriceps strength, and maintaining knee extension and stability. Early leg raising training can also prevent lower limb muscle atrophy and reduce the incidence of venous thrombosis.

[0003] The traditional method is usually assisted by specialized medical staff, which takes up a lot of time and energy of medical staff. Moreover, when there are many patients, the medical staff are simply too busy to handle it. This results in some patients not being able to perform straight leg raising rehabilitation training in a timely and effective manner or the training time and frequency are insufficient, which reduces the patient's recovery speed and even makes the recovery effect worse.

[0004] According to the existing public technology, the existing simple auxiliary device is a bracket installed on the hospital bed. By pulling the rope, the affected lower limb is lifted to a certain height, which is also conducive to reducing swelling. However, the simple auxiliary device lacks the necessary guarantee for the patient's exercise. When the patient pulls the rope in his hand, if the rope slips out of his hand due to external or self factors, it will cause secondary damage to the leg. In addition, when the patient is exercising, the leg will gradually approach the body. The bracket is fixed, so the body will tend to slide, which is not comfortable enough. Moreover, medical staff do not need to lift the leg to a suspended position for observation and dressing change. At this time, the patient needs to keep pulling the rope, or the medical staff needs to lift it manually, which takes a lot of effort and is not conducive to the subsequent rehabilitation process.

[0005] Therefore, in order to solve the above technical problems, the utility model provides a lower limb lifting auxiliary device. Utility Model Content

[0006] The purpose of the utility model is to provide a lower limb lifting auxiliary device which has the function of lifting the lower limbs, does not affect the sliding of the body during exercise, can control the lower limbs to hover, can adapt to beds of different sizes, and is labor-saving, comfortable and safe.

[0007] In order to achieve the above technical effects, the utility model is implemented through the following technical solutions: a lower limb lifting auxiliary device, including a bracket and a lifting mechanism, characterized in that: the lifting mechanism includes a rope fixing mechanism, a fixed box, a sliding base, a pulley group and a leg fixing mechanism; a fixed box is arranged in the middle of the top of the bracket, a sliding groove is arranged inside the fixed box, a sliding base is arranged in the sliding groove, a pulley group is arranged below the sliding base, the pulley group includes a fixed pulley and a movable pulley, a leg fixing mechanism is arranged below the movable pulley, and a rope fixing mechanism is arranged in front of the fixed box;

[0008] The bracket includes a first telescopic rod, a second telescopic rod, a third telescopic rod and a fourth telescopic rod; a first fixing block and a second fixing block are respectively arranged below the first telescopic rod and the fourth telescopic rod, the first telescopic rod is connected to the second telescopic rod through a right-angle joint, the third telescopic rod is connected to the fourth telescopic rod through a right-angle joint, the first telescopic rod is provided with a first fixing knob, the second telescopic rod is provided with a second fixing knob, the third telescopic rod is provided with a third fixing knob, and the fourth telescopic rod is provided with a fourth fixing knob;

[0009] The rope fixing mechanism comprises a box, a crank, a special-shaped ratchet mechanism, and a slider; the box is provided with a transmission rope through hole, a brake rope through hole, and a slide groove, a spring is provided in the slide groove, the slider is slidably installed in the slide groove, and a small hole is provided on the crank;

[0010] The ropes are provided with a transmission rope, a brake rope and a safety rope; one end of the transmission rope is connected to the fixed pulley, and the other end is provided with a first handle; one end of the brake rope is connected to the small hole on the crank, and the other end is provided with a second handle; the safety rope is provided between the fixed pulley and the movable pulley.

[0011] Furthermore, the sliding base is provided with a rolling bearing.

[0012] Furthermore, the leg fixing mechanism includes a fixing base plate, a fixing strap and a sheath arranged above the fixing base plate ring.

[0013] The beneficial effects of the utility model are:

[0014] 1) The utility model can realize that the patient can manually lift the lower limbs by setting the bracket and the lifting mechanism, and then realize the suspension after the lower limbs are lifted by braking the rope as needed. In addition, the mechanism is provided with a pulley group and a displacement compensation structure, which can help the patient save effort in the upper limbs during exercise, avoid body displacement due to lifting the lower limbs, and achieve the purpose of comfortable and labor-saving exercise;

[0015] 2) The utility model can be suitable for different beds and patients by setting the length between the connecting block of the telescopic rod and the telescopic rod, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a front view of the utility model;

[0019] Figure 3 It is the right side view of the utility model;

[0020] Figure 4 It is a top view of the utility model;

[0021] Figure 5 This is a front view of the rope fixing mechanism of the utility model;

[0022] Figure 6 This is a bottom view of the rope fixing mechanism of the utility model;

[0023] Figure 7 This utility model Figure 6 Schematic diagram of the cross section along line AA;

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 11. First fixed block; 12. Second fixed block; 21. First telescopic rod; 22. Second telescopic rod; 23. Third telescopic rod; 24. Fourth telescopic rod; 25. First fixed knob; 26. Second fixed knob; 27. Third fixed knob; 28. Fourth fixed knob; 31. Leg fixing mechanism; 32. Movable pulley; 33. Fixed pulley; 34. Sliding base; 35. Fixed box; 36. First handle; 41. Rope fixing mechanism; 42. Second handle; 51. Crank; 52. Special-shaped ratchet mechanism; 53. Sliding block; 54. Transmission rope through hole; 55. Braking rope through hole; 61. Transmission rope; 62. Braking rope; 63. Safety rope. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example 1

[0028] See also Figures 1 to 7 As shown, a lower limb lifting auxiliary device includes a bracket and a lifting mechanism, characterized in that: the lifting mechanism includes a fixed box 35, a sliding base 34, a pulley group and a leg fixing mechanism 31; a fixed box 35 is arranged in the middle of the top of the bracket, a sliding groove is arranged inside the fixed box 35, a sliding base 34 is arranged in the sliding groove, a pulley group is arranged below the sliding base 34, the pulley group includes a fixed pulley 33 and a movable pulley 32, a leg fixing mechanism 31 is arranged below the movable pulley 32, and a rope fixing mechanism 41 is arranged in front of the fixed box 35.

[0029] The bracket includes a first telescopic rod 21, a second telescopic rod 22, a third telescopic rod 23 and a fourth telescopic rod 24, wherein a first fixed block 11 and a second fixed block 12 are respectively arranged below the first telescopic rod 21 and the fourth telescopic rod 24, wherein the first telescopic rod 21 is connected to the second telescopic rod 22 through a right angle joint, wherein the third telescopic rod 23 is connected to the fourth telescopic rod 24 through a right angle joint, wherein the first telescopic rod 21 is provided with a first fixed knob 25, wherein the second telescopic rod 22 is provided with a second fixed knob 26, wherein the third telescopic rod 23 is provided with a third fixed knob 27, and wherein the fourth telescopic rod 24 is provided with a fourth fixed knob 28. The first fixed block 11 and the second fixed block 12 can be clamped on both sides of the hospital bed, or can be made into a base and stand on the ground. At the same time, the length of the second telescopic rod 22 and the third telescopic rod 23 can be adjusted to control the distance between them, and different hospital bed lengths can be applied. The fixed knob is to prevent the telescopic rod from moving after being adjusted to a fixed position. In addition, the bracket can also be used without a telescopic rod, and can use a specific size support rod or integral casting according to the specific hospital bed size.

[0030] The rope fixing mechanism 41 includes a box, a crank 51, a special-shaped ratchet mechanism 52, and a slider 53. The box is provided with a transmission rope through hole 54, a brake rope through hole 55, and a slide groove, in which a spring is provided, and the slider is slidably installed in the slide groove, and a small hole is provided on the crank. Pulling the brake rope 62 drives the crank 51, so that the special-shaped ratchet mechanism 52 turns to a larger tooth shape and pushes the slider 53, so that the transmission rope 61 can be clamped. Pulling the brake rope 62 again drives the crank 51, so that the special-shaped ratchet mechanism 52 turns to a smaller tooth shape, and the spring pushes the slider 53, so that the transmission rope 61 can be loosened.

[0031] The ropes are provided with a transmission rope 61, a brake rope 62 and a safety rope 63; one end of the transmission rope 61 is connected to the fixed pulley 33, and the other end is provided with a first handle 36; one end of the brake rope 62 is connected to the small hole on the crank 51, and the other end is provided with a second handle 42; the safety rope 63 is provided between the fixed pulley 33 and the movable pulley 32. When the safety rope 63 is fully straightened, the patient's lower limbs are slightly away from the bed sheet, which can effectively prevent the secondary injury of the lower limbs caused by the breakage of the transmission rope 61 or the patient's physical exhaustion and the detachment of the transmission rope. The first handle 36 is provided with a protrusion to prevent hand slippage.

[0032] The sliding base 34 is provided with a rolling bearing. The sliding base 34 needs to be slidably installed in the slide groove of the fixed box 35. The rolling bearing is provided on the top to allow the sliding base 34 to have more rotational freedom so as to adapt to different body postures during the lower limb lifting process. At the same time, the sliding of the sliding base 34 can solve the problem that the lower limbs of the patient are getting closer and closer to the upper limbs during the lower limb lifting process.

[0033] The leg fixing mechanism 31 comprises a fixed base plate, a fixed binding strap and a protective sleeve located above the fixed base plate ring. The protective sleeve above the fixed base plate ring can be made of sponge or air bag to softly wrap the patient's legs and make them feel comfortable.

[0034] Example 2

[0035] Working principle: When in use, the medical staff first adjusts the length of the second telescopic rod 22 and the third telescopic rod 23 to control the distance between the first fixed block 11 and the second fixed block 12, and installs them on the required bed. The patient lies on the bed, and the medical staff or family members help the patient to put the leg to be exercised on the sheath of the leg fixing mechanism 31 and fix it with a fixing strap. The first handle 36 is placed in the patient's hand, and the second handle is placed next to the other hand. The patient can drag the patient's lower limbs to lift and perform rehabilitation exercises by dragging the first handle 36. Compared with the device using only one fixed pulley, the pulley group can save half of the patient's hand strength. When the leg is lifted, the sliding base 34 will slide toward the patient's body to compensate for the position of the leg getting closer and closer to the human body. When falling, the sliding base 34 will slide away from the patient's body. When the lower limb needs to be suspended in the air during the process, the second handle 42 is dragged with the other hand to lock the transmission rope 61, and the first handle 36 will no longer work. At this time, the patient can no longer hold the first handle 36 tightly in his hand. At this time, the medical staff can observe the patient's body part and change the dressing, etc. When the hovering needs to be ended, the patient needs to hold the first handle 36 tightly first, and then pull the second handle 42, at which time the transmission rope 61 can move normally, and then the first handle 36 can be used for control.

Claims

1. A lower limb lifting auxiliary device, comprising a bracket and a lifting mechanism, characterized in that: The lifting mechanism comprises a rope fixing mechanism (41), a fixed box (35), a sliding base (34), a pulley block and a leg fixing mechanism (31); a fixed box (35) is arranged in the middle of the top of the bracket, a sliding groove is arranged inside the fixed box (35), a sliding base (34) is arranged in the sliding groove, a pulley block is arranged below the sliding base (34), the pulley block comprises a fixed pulley (33) and a movable pulley (32), a leg fixing mechanism (31) is arranged below the movable pulley (32), and a rope fixing mechanism (41) is arranged in front of the fixed box (35); The bracket comprises a first telescopic rod (21), a second telescopic rod (22), a third telescopic rod (23) and a fourth telescopic rod (24); a first fixing block (11) and a second fixing block (12) are respectively arranged below the first telescopic rod (21) and the fourth telescopic rod (24); the first telescopic rod (21) is connected to the second telescopic rod (22) through a right-angle joint, the third telescopic rod (23) is connected to the fourth telescopic rod (24) through a right-angle joint, the first telescopic rod (21) is provided with a first fixing knob (25), the second telescopic rod (22) is provided with a second fixing knob (26), the third telescopic rod (23) is provided with a third fixing knob (27), and the fourth telescopic rod (24) is provided with a fourth fixing knob (28); The rope fixing mechanism (41) comprises a box, a crank (51), a special-shaped ratchet mechanism (52), and a slider (53); the box is provided with a transmission rope through hole (54), a brake rope through hole (55), and a slide groove, a spring is provided in the slide groove, the slider is slidably installed in the slide groove, and a small hole is provided on the crank (51); The ropes are provided with a transmission rope (61), a brake rope (62) and a safety rope (63); one end of the transmission rope (61) is connected to the fixed pulley (33), and the other end is provided with a first handle (36); one end of the brake rope (62) is connected to the small hole on the crank (51), and the other end is provided with a second handle (42); the safety rope (63) is provided between the fixed pulley (33) and the movable pulley (32).

2. A lower limb lifting assisting device according to claim 1, characterized in that: The sliding base (34) is provided with a rolling bearing.

3. A lower limb lifting assisting device according to claim 1, characterized in that: The leg fixing mechanism (31) comprises a fixing base plate, a fixing strap and a protective sleeve arranged above the fixing base plate ring.

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