Nursing device for lower limb postoperative patient

Abstract

The invention relates to the technical field of medical instruments, and discloses a lower limb postoperative patient nursing device which comprises an L-shaped plate, a mounting part mounted on the outer side of the L-shaped plate and used for being connected with a training tool and improving use stability, and a supporting part mounted on the mounting part and used for limiting and supporting the lower limbs of a patient. The training part is installed on the supporting part and used for automatically training lower limb horizontal opening and closing and knee bending movement of a patient, the auxiliary part is installed on the training part, the device can automatically drive the lower limbs of the patient to conduct opening and closing, bending and ankle movement, three kinds of training are conducted at the same time, the actual training and movement rules are met, and the training efficiency is improved. Compared with existing single walking bending simulation training, the lower limbs of the patient can be nursed more comprehensively, the training process is automatically completed by the device, assistance of medical staff is not needed, time investment of the medical staff is reduced, fatigue of the medical staff is reduced, and occupation of medical resources is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a nursing device for patients after lower limb surgery. Background Art

[0002] Postoperative care for the lower limbs refers to a series of care measures taken after surgery on the lower limbs to promote wound healing, prevent infection, reduce complications and accelerate patient recovery. These measures include but are not limited to appropriate activities and physical therapy under the guidance of a doctor to restore lower limb function and enhance muscle strength and joint flexibility.

[0003] According to the Chinese patent publication number CN113648186A, the patent provides a neurosurgery postoperative lower limb rehabilitation nursing bed, including a support frame, a programmable logic controller installed at the bottom of the support frame, and two electric push rods electrically connected to the programmable logic controllers respectively. The top of the support frame is provided with a horizontal fixed plate fixed on the support frame, two first movable frames respectively hinged to the support frame, two second movable frames respectively hinged to the first movable frames, and two guide rails fixed to the support frame. The horizontal fixed plate is used to support the patient's upper body in a lying state, so that the patient can train lying flat, reduce the pressure on the patient's lower limbs, and improve the patient's comfort during rehabilitation training; the programmable logic controller is used to control the two electric push rods to alternately extend and retract, drive the two first movable frames to alternately rise and fall, thereby driving the two second movable frames to alternately rise and fall, so that the patient's lower limbs simulate the state of alternating bending when walking, so that the patient's lower limbs can undergo rehabilitation training. The rehabilitation device has a simple structure and is easy to manufacture.

[0004] However, the existing technology requires a series of massage methods for the rehabilitation training of the patient's lower limbs. The effect of a single simulated walking bending training is not ideal. For example, the ankles, knees and thighs need to be trained in different ways, and these exercises are usually completed with the assistance of medical staff. On the one hand, it takes up the time of medical staff. When facing a large number of patients, the manpower cost investment is too large, which increases the burden and fatigue of manpower, and it is not easy for each patient to achieve the appropriate training effect. Therefore, a nursing device for patients after lower limb surgery is proposed to solve the above problems. Summary of the invention

[0005] Technical issues solved In view of the deficiencies in the prior art, the present invention provides a nursing device for patients after lower limb surgery, which solves the problem that lower limb rehabilitation training requires the assistance of medical staff, which takes up a lot of manpower time, increases the fatigue of medical staff, and makes it difficult to achieve appropriate training effects for every patient.

[0006] (II) Technical solution To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a nursing device for patients after lower limb surgery, comprising an L-shaped plate, a mounting portion mounted on the outer side of the L-shaped plate, for connecting training tools and improving stability in use, a supporting portion mounted on the mounting portion, for limiting and supporting the patient's lower limbs, a training portion mounted on the supporting portion, for automatically training the patient's lower limbs in horizontal opening and closing and knee flexion movements, an auxiliary portion mounted on the training portion, for automatically and synchronously training the patient's ankle movements, and a control portion mounted on the inner side of the L-shaped plate, for automatically controlling the training time.

[0007] Preferably, the mounting portion includes a support block, the support block is fixedly connected to the outer wall of the L-shaped plate, a U-shaped plate is provided at the end of the support block, a rotating shaft vertically passes through the support block and is rotatably connected, two ear ends of the U-shaped plate are respectively fixedly sleeved on the two ends of the rotating shaft, a gear is fixedly sleeved on the top end of the rotating shaft, an anti-warp plate is fixedly connected to the outer wall of the L-shaped plate, and a limiting groove is provided on the top of the L-shaped plate.

[0008] Preferably, the support portion includes a support arm, the support arm is fixedly connected to the outer wall of the U-shaped plate, one side of the support arm is fixedly connected to a U-shaped frame, a baffle is fixedly connected to an ear end of the U-shaped frame away from the support arm, and a rack is fixedly connected between the side wall of the support arm and the ear end of the U-shaped frame.

[0009] Preferably, the training part includes two electric push rods, which are symmetrically installed on the inner wall of the U-shaped frame, the inner rod ends of the two electric push rods are fixedly connected to a support plate, the support plate is slidably connected to the inner wall of the U-shaped frame, one side of the support plate is fixedly connected to a Z-shaped arm, and the bottom of the Z-shaped arm away from the support plate is hinged with an adjustment arm through a pin.

[0010] Preferably, the top surface of the support plate is higher than the top surface of the U-shaped frame, a sliding groove is provided at an outer angle of the bottom of one end of the Z-shaped arm, the bottom of one end of the Z-shaped arm is fitted with the top of one ear end of the U-shaped frame, and the inner angle of the other end of the Z-shaped arm is fitted with the support arm.

[0011] Preferably, one end of the adjusting arm away from the Z-shaped arm is slidably connected to the inner wall of the limiting groove, and a side of the adjusting arm close to the gear one is provided with teeth, and the adjusting arm is meshed with the gear one through the teeth.

[0012] Preferably, the auxiliary part includes two side plates, and the two side plates are symmetrically installed on both sides of the support plate. A rotating rod is rotatably connected between the two side plates, and a pedal is fixedly sleeved on the rotating rod. Torsion springs are elastically connected between the two sides of the pedal and the two side plates. A through hole is opened on the top of the pedal, and a clamp is slidably connected in the through hole. One end of the rotating rod movably passes through the side plate and is fixedly sleeved with gear 2, and gear 2 is aligned with the rack.

[0013] Preferably, a protection box is fixedly connected between the inner walls of the L-shaped plate, the protection box is opened on one side close to the limiting groove, the opening of the protection box is connected to the limiting groove, and the sliding end of the adjustment arm is aligned with the opening of the protection box.

[0014] Preferably, the control unit includes a chassis, which is installed between the inner walls of the L-shaped plate and located at the bottom of the protective box. A mobile power supply is arranged in the chassis, a wiring port is arranged on the outer wall of the chassis, a heat dissipation hole is opened on the top of the chassis, and a button switch is installed on the side of the outer wall of the chassis, and the button switch is electrically connected to the two electric push rods.

[0015] Preferably, an inner handle is installed on the inner wall of the L-shaped plate, and two outer handles are installed on the outer wall of the L-shaped plate.

[0016] (III) Beneficial effects Compared with the prior art, the present invention provides a nursing device for patients after lower limb surgery, which has the following beneficial effects: 1. The nursing device for patients after lower limb surgery can automatically drive the patient's lower limbs to open and close, bend and move the ankles, and perform three trainings at the same time, which meets the actual training and exercise rules. Compared with the existing single simulated walking bending training, it can provide more comprehensive care for the patient's lower limbs. The training process is automatically completed by the device without the assistance of medical staff, which reduces the time investment of medical staff, reduces the fatigue of medical staff, and reduces the occupation of medical resources.

[0017] 2. This nursing device for patients after lower limb surgery uses knee flexion exercises to promote blood circulation in the lower limbs, reduce the risk of blood congestion and thrombosis, enhance muscle strength around the knee joint, increase the range of joint motion, prevent joint adhesion, and improve joint flexibility. Horizontal opening and closing exercises of the lower limbs can exercise the hip muscles, improve lower limb coordination, promote blood circulation in the muscles around the thigh, and prevent muscle atrophy. Ankle exercises can promote blood return, reduce lower limb swelling, and enhance ankle stability, thus preparing patients to recover their walking ability and improving their quality of life.

[0018] 3. The nursing device for patients after lower limb surgery is equipped with an inner handle and an outer handle, which is convenient for patients to grasp and improve stability, and is also convenient for medical staff to carry. The anti-tilt plate of the installation part can prevent the patient's lower limbs from pressing the training tool during use and causing the L-shaped plate to tip over. The protective box can store the protective adjustment arm to prevent it from shaking and tilting, thereby avoiding collision between the device and the patient during lower limb training.

[0019] 4. The nursing device for patients after lower limb surgery uses a clamp on the auxiliary pedal that can slide to match the sizes of different patients' feet, which can effectively restrict the feet on the pedal to meet the needs of different patients. A mobile power supply is installed in the chassis of the control unit, and there is a wiring port on the outer wall. It can be plugged in and used, and can also rely on the mobile power supply to work in the event of a power outage, which improves the automation capability and flexibility of the device. Each patient can choose the appropriate training time according to his or her own situation, and one person and one device can be used on a single bed, which does not take up space in the ward and is lightweight and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an overall front-side axial view of a nursing device for patients after lower limb surgery proposed by the present invention; Figure 2 This is an overall posterior axial view of a nursing device for patients after lower limb surgery proposed by the present invention; Figure 3 This is a schematic structural diagram of a connection portion of a nursing device for patients after lower limb surgery proposed by the present invention; Figure 4 This is a schematic diagram of the structure of a control unit of a nursing device for patients after lower limb surgery proposed by the present invention; Figure 5 A connection diagram of a support part, a training part and an auxiliary part of a nursing device for patients after lower limb surgery proposed by the present invention; Figure 6 This is a schematic diagram of the structure of the training part and the auxiliary part of the nursing device for patients after lower limb surgery proposed by the present invention; Figure 7 This is a schematic structural diagram of a support portion of a nursing device for patients after lower limb surgery proposed by the present invention.

[0021] In the figure: 1. L-shaped plate; 2. Installation part; 21. Support block; 22. U-shaped plate; 23. Rotating shaft; 24. Gear 1; 25. Anti-skid plate; 26. Limiting groove; 3. Support part; 31. Support arm; 32. U-shaped frame; 33. Baffle; 34. Rack; 4. Training part; 41. Electric push rod; 42. Support plate; 43. Z-shaped arm; 44. Adjustment arm; 5. Auxiliary part; 51. Side panel; 52. Rotating rod; 53. Pedal; 54. Clamp; 55. Gear 2; 6. Protection box; 7. Control part; 71. Chassis; 72. Wiring port; 73. Heat dissipation hole; 74. Push button switch; 8. Inner handle; 9. Outer handle. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-7 The present invention provides a technical solution: a nursing device for patients after lower limb surgery, comprising an L-shaped plate 1, an inner handle 8 is installed on the inner wall of the L-shaped plate 1, the inner handle 8 is used for the patient to grasp during lower limb training, thereby improving the stability of the device and the comfort of the patient; two outer handles 9 are installed on the outer wall of the L-shaped plate 1, the outer handles 9 are convenient for medical staff to carry the device; the mounting part 2 of this case is installed on the outer side of the L-shaped plate 1, for connecting training tools and improving the stability of use; the supporting part 3 of this case is installed on the mounting part 2, for limiting the position of the patient's lower limbs and providing support; the training part 4 of this case is installed on the supporting part 3, for automatically training the patient's lower limb horizontal opening and closing and knee bending movements; the auxiliary part 5 of this case is installed on the training part 4, for automatically and synchronously training the patient's ankle movements; the control part 7 of this case is installed on the inner side of the L-shaped plate 1, for automatically controlling the training time.

[0024] In this embodiment, in order to improve the stability of the device when in use, the mounting portion 2 of this case includes a support block 21, which is fixedly connected to the outer wall of the L-shaped plate 1, and a U-shaped plate 22 is provided at the end of the support block 21. A rotating shaft 23 vertically penetrates and is rotatably connected to the support block 21, and the two ear ends of the U-shaped plate 22 are respectively fixedly sleeved on the two ends of the rotating shaft 23, and a gear 24 is fixedly sleeved on the top of the rotating shaft 23. An anti-rocking plate 25 is fixedly connected to the outer wall of the L-shaped plate 1. The anti-rocking plate 25 can balance the L-shaped plate 1 to avoid the problem of the L-shaped plate 1 tipping over due to the patient's lower limbs pressing on the training tool when using it. A limiting groove 26 is provided on the top of the L-shaped plate 1.

[0025] In order to enable the training tool to automatically drive one side of the patient's lower limb to exercise, the support part 3 of the present case includes a support arm 31, the support arm 31 is fixedly connected to the outer wall of the U-shaped plate 22, one side of the support arm 31 is fixedly connected to a U-shaped frame 32, and a baffle 33 is fixedly connected to the ear end of the U-shaped frame 32 away from the support arm 31. In order to prevent the patient's lower limb from falling off the training tool during exercise, a rack 34 is fixedly connected between the side wall of the support arm 31 and the ear end of the U-shaped frame 32.

[0026] In order to support one side of the patient's lower limb and complete the rehabilitation training content, the training part 4 in this case includes two electric push rods 41, which are symmetrically installed on the inner wall of the U-shaped frame 32. The inner rod ends of the two electric push rods 41 are fixedly connected with a support plate 42, and the support plate 42 is slidably connected to the inner wall of the U-shaped frame 32. A Z-shaped arm 43 is fixedly connected to one side of the support plate 42. The bottom of the end of the Z-shaped arm 43 away from the support plate 42 is hinged with an adjustment arm 44 through a pin. The top surface of the support plate 42 is higher than the U-shaped The top surface of the U-shaped frame 32 and the outer angle of the bottom of one end of the Z-shaped arm 43 are provided with a sliding groove, and the sliding groove is used to prevent the Z-shaped arm 43 from colliding with the rack 34 during movement. The bottom of one end of the Z-shaped arm 43 is in contact with the top of one ear end of the U-shaped frame 32, and the inner angle of the other end of the Z-shaped arm 43 is in contact with the support arm 31. The end of the adjusting arm 44 away from the Z-shaped arm 43 is slidably connected to the inner wall of the limiting groove 26, and the side of the adjusting arm 44 close to the gear 24 is provided with meshing teeth, and the adjusting arm 44 is meshed with the gear 24 through the meshing teeth.

[0027] It is worth noting that in order to enable the patient to perform automated ankle movements synchronously during lower limb movements, the auxiliary part 5 in this case includes two side plates 51, which are symmetrically mounted on both sides of the support plate 42. A rotating rod 52 is rotatably connected between the two side plates 51, and a pedal 53 is fixedly sleeved on the rotating rod 52. Torsion springs are elastically connected on both sides of the pedal 53 and the two side plates 51. The torsion force of the torsion spring can fix the initial angle of the patient's foot, thereby increasing the amplitude of ankle movement. A through hole is opened on the top of the pedal 53, and a clamp 54 is slidably connected in the through hole. The clamp 54 can match the foot sizes of different patients by sliding, thereby limiting the foot on the pedal 53. One end of the rotating rod 52 movably passes through the side plate 51 and is fixedly sleeved with a gear 2 55, and the gear 2 55 is aligned with the rack 34.

[0028] It is worth noting that in order to avoid collision between the device and the patient during lower limb training, a protective box 6 is fixedly connected between the inner walls of the L-shaped plate 1 in this case. The protective box 6 is opened on one side close to the limit groove 26, and the opening of the protective box 6 is connected to the limit groove 26. The sliding end of the adjustment arm 44 is aligned with the opening of the protective box 6, and the adjustment arm 44 slides into the protective box 6 for storage and protection. At the same time, the top surface of the adjustment arm 44 fits with the top surface of the inner wall of the protection box 6, which can prevent the adjustment arm 44 from shaking and tilting. In order to be able to use this device both when plugged in and when powered off The device improves the automation capability and flexibility of the device. The control unit 7 of the present invention includes a chassis 71, which is installed between the inner walls of the L-shaped plate 1 and located at the bottom of the protective box 6. A mobile power supply is arranged in the chassis 71. The outer wall of the chassis 71 is provided with a wiring port 72, which can be used for wiring and charging the mobile power supply. A heat dissipation hole 73 is opened on the top of the chassis 71. The heat dissipation hole 73 ensures the normal heat dissipation of the mobile power supply during use and charging. A button switch 74 is installed on the side of the outer wall of the chassis 71, and the button switch 74 is electrically connected to the two electric push rods 41.

[0029] Working principle: place the L-shaped board 1 on the bed and on one side of the patient's body, the patient's arm extends into the inner wall of the L-shaped board 1 to grasp the inner handle 8, the anti-rocking board 25 fits the bed for balanced support, the support part 3, the training part 4 and the auxiliary part 5 are all suspended at a certain height from the bed, and the U-shaped frame 32 extends to the bottom of the patient's lower limb on one side. The medical staff puts the patient's calf on the support board 42 in a lifting state, and slides the clamp 54 according to the size of the patient's foot, causing the U-shaped end of the clamp 54 to be limited on the instep, so that the patient's foot fits with the pedal 53, and the angle of the patient's foot can be fixed under the torsion of the torsion spring, thereby completing the preparation work before lower limb training.

[0030] The patient can independently control the button switch 74 to turn the electric push rod 41 on and off according to his or her own situation, or can control the electric push rod 41 by calling medical staff. After turning on the electric push rod 41 by the button switch 74, the inner rod of the electric push rod 41 contracts and drives the support plate 42 to slide along the inner wall of the U-shaped frame 32, thereby driving the pedal 53 to slide synchronously, and using the thrust of the pedal 53 to actively push the patient's foot, and then push the thigh through the calf to produce knee bending. Through the bending and extension of the knee, the lower limb muscles can be driven to contract and relax, promote blood flow in the lower limbs, reduce blood congestion, reduce the risk of thrombosis, help exercise the muscles around the knee joint, provide better support for the knee joint, stabilize the joint, and reduce the burden on the joint. The patient's knee joint may experience a certain degree of stiffness after surgery. Knee bending exercise can gradually increase the range of motion of the joint, prevent joint adhesion, and improve the flexibility of the joint.

[0031] At the same time, during the movement of the support plate 42, the Z-arm 43 drives the adjustment arm 44 to follow the movement. At this time, the horizontal coordinates of the adjustment arm 44 are changed, but because the adjustment arm 44 is limited in the limit groove 26 for sliding, the adjustment arm 44 is prevented from following the rotation. Instead, the adjustment arm 44 is prompted to move in a curve with the hinge point as the axis, and is limited by the limit groove 26 to keep sliding in the same axial direction. During the sliding of the adjustment arm 44, its meshing teeth drive the gear 1 24 to rotate, and then drive the U-shaped plate 22 to rotate through the rotating shaft 23, and at the same time drive the support arm 31 to rotate, and finally during the contraction of the electric push rod 41, the support part 3, the training part 4 and the auxiliary part 5 are synchronously caused to flip outward with the rotating shaft 23 as the axis, so as to realize the movement of driving the patient's lower limbs to open outward. On the contrary, during the extension of the inner rod of the electric push rod 41, each link is reset, thereby driving the patient's lower limbs to move inward, exercising the hip muscles, improving the coordination ability of the lower limbs, promoting blood circulation of the muscles around the thigh, and preventing muscle atrophy caused by postoperative braking.

[0032] At the same time, after the support plate 42 moves a certain distance, the gear 2 55 will contact the rack 34 to mesh and rotate, thereby driving the pedal 53 to flip through the rotating rod 52. The angle will not exceed ninety degrees, so it will not cause excessive damage to the patient's ankle. When the electric push rod 41 reciprocates, the ankle will also swing repeatedly, promoting blood return, enhancing ankle joint stability, helping patients recover walking ability faster, and improving quality of life.

[0033] This case utilizes the installation part 2, the support part 3, the training part 4 and the auxiliary part 5 to automatically drive the patient's lower limbs to open and close, bend and perform ankle movements, and perform three trainings at the same time, which meets the actual training and exercise rules. While training the lower limbs, it can provide more comprehensive care effects for the patient's lower limbs, produce a benign rehabilitation process, reduce the labor of medical staff, and alleviate the occupation of medical resources. Each patient can take appropriate training time according to his or her own situation, and each person and one device can be trained on a separate bed, which will not occupy the ward space. It is lightweight and easy to use.

[0034] 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. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A nursing device for patients after lower limb surgery, characterized in that: include: L-shaped plate (1); A mounting portion (2) mounted on the outside of the L-shaped plate (1) and used for connecting a training tool and improving stability in use; A support portion (3) mounted on the mounting portion (2) and used to limit the position of the patient's lower limbs and provide support; A training part (4) is mounted on the support part (3) and is used to automatically train the patient's lower limbs to open and close horizontally and to perform knee flexion movements; An auxiliary part (5) mounted on the training part (4) and used for automatically and synchronously training the patient's ankle movements; A control unit (7) is installed on the inner side of the L-shaped plate (1) and is used to automatically control the training time.

2. The nursing device for patients after lower limb surgery according to claim 1, characterized in that: The mounting portion (2) comprises a support block (21), the support block (21) being fixedly connected to the outer wall of the L-shaped plate (1), a U-shaped plate (22) being arranged at the end of the support block (21), a rotating shaft (23) vertically penetrating the support block (21) and being rotatably connected thereto, two ear ends of the U-shaped plate (22) being fixedly sleeved on the two ends of the rotating shaft (23), a gear 1 (24) being fixedly sleeved on the top end of the rotating shaft (23), an anti-warping plate (25) being fixedly connected to the outer wall of the L-shaped plate (1), and a limiting groove (26) being arranged at the top of the L-shaped plate (1).

3. The nursing device for patients after lower limb surgery according to claim 2, characterized in that: The support portion (3) comprises a support arm (31), the support arm (31) being fixedly connected to the outer wall of the U-shaped plate (22), a U-shaped frame (32) being fixedly connected to one side of the support arm (31), a baffle (33) being fixedly connected to an ear end of a side of the U-shaped frame (32) away from the support arm (31), and a rack (34) being fixedly connected between the side wall of the support arm (31) and the ear end of the U-shaped frame (32).

4. The nursing device for patients after lower limb surgery according to claim 3, characterized in that: The training part (4) comprises two electric push rods (41), the two electric push rods (41) are symmetrically mounted on the inner wall of the U-shaped frame (32), the inner rod ends of the two electric push rods (41) are fixedly connected to a support plate (42), the support plate (42) is slidably connected to the inner wall of the U-shaped frame (32), one side of the support plate (42) is fixedly connected to a Z-shaped arm (43), and the bottom of one end of the Z-shaped arm (43) away from the support plate (42) is hinged to an adjustment arm (44) via a latch.

5. The nursing device for patients after lower limb surgery according to claim 4, characterized in that: The top surface of the support plate (42) is higher than the top surface of the U-shaped frame (32); a sliding groove is provided at an outer angle of the bottom of one end of the Z-shaped arm (43); the bottom of one end of the Z-shaped arm (43) is fitted with the top of one ear end of the U-shaped frame (32); and the inner angle of the other end of the Z-shaped arm (43) is fitted with the support arm (31).

6. The nursing device for patients after lower limb surgery according to claim 5, characterized in that: One end of the regulating arm (44) away from the Z-shaped arm (43) is slidably connected to the inner wall of the limiting groove (26); a side of the regulating arm (44) close to the gear one (24) is provided with teeth; the regulating arm (44) is meshed with the gear one (24) via the teeth.

7. The nursing device for patients after lower limb surgery according to claim 4, characterized in that: The auxiliary part (5) comprises two side plates (51), the two side plates (51) are symmetrically mounted on both sides of the support plate (42), a rotating rod (52) is rotatably connected between the two side plates (51), a pedal (53) is fixedly sleeved on the rotating rod (52), both sides of the pedal (53) and the two side plates (51) are elastically connected with torsion springs, a through hole is opened at the top of the pedal (53), a clamp (54) is slidably connected in the through hole, one end of the rotating rod (52) movably passes through the side plate (51) and is fixedly sleeved with a second gear (55), and the second gear (55) is aligned with the rack (34).

8. The nursing device for patients after lower limb surgery according to claim 6, characterized in that: A protection box (6) is fixedly connected between the inner walls of the L-shaped plate (1); an opening of the protection box (6) is arranged close to the limiting groove (26); the opening of the protection box (6) is connected to the limiting groove (26); and the sliding end of the adjustment arm (44) is aligned with the opening of the protection box (6).

9. The nursing device for patients after lower limb surgery according to claim 8, characterized in that: The control unit (7) comprises a chassis (71), the chassis (71) being installed between the inner walls of the L-shaped plate (1) and located at the bottom of the protective box (6), a mobile power source being arranged in the chassis (71), a wiring port (72) being arranged on the outer wall of the chassis (71), a heat dissipation hole (73) being arranged on the top of the chassis (71), a button switch (74) being installed on the side of the outer wall of the chassis (71), and the button switch (74) being electrically connected to the two electric push rods (41).

10. The nursing device for patients after lower limb surgery according to claim 1, characterized in that: An inner handle (8) is installed on the inner wall of the L-shaped plate (1), and two outer handles (9) are installed on the outer wall of the L-shaped plate (1).

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