A lower limb rehabilitation device after one-piece liver transplantation

Abstract

This utility model relates to the field of medical device technology and discloses an integrated lower limb rehabilitation device after liver transplantation. It includes a connecting plate with an L-shaped groove. A sliding column is slidably connected to the L-shaped groove. A drive unit is connected to one side of the connecting plate, which drives the sliding column to slide on the L-shaped groove. An assist mechanism is connected to the sliding column, which helps to lift the patient's lower leg and perform a cyclical knee flexion movement. A positioning support is slidably connected to one side of the drive unit. The positioning support is a long strip structure with an L-shaped cross-section. Two positioning supports are driven apart by a telescopic rod, thus securing them to the bed railing. This utility model uses a single drive source to sequentially drive the lower leg lifting and ankle traction, achieving a continuous rehabilitation movement of lifting followed by knee flexion. This makes the lifting and knee flexion coordinated and the movements smooth, thereby simplifying the device structure and improving training continuity.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an integrated lower limb rehabilitation device after liver transplantation. Background Technology

[0002] Liver transplant patients often require prolonged bed rest, which restricts lower limb movement and can lead to venous stasis and slowed blood flow, increasing the risk of deep vein thrombosis in the lower extremities. To prevent such complications, passive limb movement exercises are often performed on patients in the early postoperative period to promote blood circulation.

[0003] Currently, manual massage or simple lower limb movement devices are commonly used in clinical practice to perform lower limb rehabilitation training for patients. Some existing lower limb rehabilitation devices are usually installed on the side of the hospital bed, using a motor-driven linkage mechanism to move the patient's lower leg to perform lifting or flexion and extension movements.

[0004] However, the drive structure of existing lower limb rehabilitation devices is mostly designed with a single motion trajectory. Its power output can only achieve simple lifting or simple knee flexion of the lower leg. The two are usually completed by independent drive components, resulting in poor continuity of training movements and difficulty in achieving continuous rehabilitation movements of lifting and then bending the knee.

[0005] Based on this, an integrated lower limb rehabilitation device after liver transplantation is proposed. Utility Model Content

[0006] The purpose of this invention is to provide an integrated lower limb rehabilitation device after liver transplantation in order to solve the above-mentioned problems.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: An integrated lower limb rehabilitation device after liver transplantation includes a connecting plate with an L-shaped groove. A sliding column is slidably connected to the L-shaped groove. A drive unit is connected to one side of the connecting plate. The drive unit is used to drive the sliding column to slide on the L-shaped groove. An assist mechanism is connected to the sliding column. The assist mechanism is used to lift the patient's lower leg and perform a cyclical knee flexion movement.

[0008] Preferably, a positioning support is slidably connected to one side of the drive unit, and a telescopic rod is connected between the positioning supports.

[0009] Preferably, the positioning support is a long strip structure with an L-shaped cross-section. The two positioning supports are driven apart by a telescopic rod, thereby locking onto the bed railing.

[0010] Preferably, the telescopic rod includes an internally threaded cylinder in the middle and screws threaded to its two ends. By rotating the internally threaded cylinder, the screws at both ends can be driven to move the positioning supports closer to or further apart from each other.

[0011] Preferably, the assist mechanism includes a support platform, a lifting bar is fixedly connected to one side of the support platform, and the lifting bar is slidably connected to one side of the connecting plate; A support wheel is rotatably connected to the outer side of the sliding column. The support wheel rolls in contact with the lower surface of the lifting bar. A slide frame is connected to the upper end of the lifting bar. A slide rod is connected to one end of the sliding column through a traction bar. The slide rod is slidably connected to the slide frame. A wrapping tape is rotatably connected to one end of the slide rod. The wrapping tape is used to wrap around the patient's ankle.

[0012] Preferably, a plurality of rollers are rotatably connected to the support platform, the rollers being used to reduce the friction between the patient's limb and the support platform.

[0013] Preferably, a slide rail is vertically connected to one side of the connecting plate, and the lifting bar is slidably connected to the slide rail.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. In this integrated lower limb rehabilitation device after liver transplantation, the sliding column alternately slides along the vertical and horizontal sections of the L-shaped groove, and a single drive source sequentially drives the lower leg to be raised and the ankle to be pulled, realizing a continuous rehabilitation movement of knee flexion after raising. This makes the raising and knee flexion coordinated and the movement smooth, thereby simplifying the device structure and improving the continuity of training.

[0015] 2. In this integrated lower limb rehabilitation device after liver transplantation, the L-shaped positioning support is expanded to both sides and secured to the bed rail by means of a telescopic rod, so that the device remains stable when the force is applied alternately during lifting and knee flexion, avoiding loosening or deflection due to changes in the direction of force, thereby improving the safety and reliability of the training process. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of the lower limb rehabilitation device provided according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of the positioning support connection provided according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of the support wheel connection provided according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of the structure of the winding tape connection provided according to an embodiment of the present invention is shown; Figure 5 A schematic diagram of the structure of the traction bar connection provided according to an embodiment of the present invention is shown.

[0017] Legend: 100. Connecting plate; 101. L-shaped groove; 102. Slide rail; 103. Lifting bar; 104. Carriage; 105. Drive unit; 106. Positioning support; 107. Telescopic rod; 110. Support platform; 111. Roller; 112. Winding belt; 113. Sliding column; 114. Support wheel; 115. Sliding rod; 116. Traction bar. Detailed Implementation

[0018] 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.

[0019] This utility model provides a technical solution: An integrated lower limb rehabilitation device after liver transplantation includes a connecting plate 100 with an L-shaped groove 101. A sliding column 113 is slidably connected to the L-shaped groove 101. A drive unit 105 is connected to one side of the connecting plate 100, which drives the sliding column 113 to slide on the L-shaped groove 101. An assist mechanism is connected to the sliding column 113, which helps to raise the patient's lower leg and perform a cyclical knee flexion movement. Figure 1 , Figure 2 and Figure 3 As shown, when the drive unit 105 is in operation, the slide column 113 slides alternately along the vertical and horizontal sections of the L-shaped groove 101 to achieve both lifting and pulling actions.

[0020] A positioning support 106 is slidably connected to one side of the drive unit 105, and a telescopic rod 107 is connected between the positioning supports 106. Figure 2 As shown, during installation, the positioning brace 106 is placed between the bed rails, and the telescopic rod 107 is rotated to extend it, which can then secure the device to the bed rails and prevent it from shifting during training.

[0021] The positioning support 106 is a long strip structure with an L-shaped cross-section. The two positioning supports 106 are driven to move away from each other by the telescopic rod 107, thereby locking them onto the bed railing.

[0022] The telescopic rod 107 includes an internally threaded cylinder in the middle and screws threaded to its two ends. By rotating the internally threaded cylinder, the screws at both ends can be driven to move the positioning supports 106 closer or further apart. Rotating the internally threaded cylinder clockwise pushes the screws outward to slide the positioning supports 106 along the slide groove of the drive unit 105 until they are locked to the railing. Rotating counterclockwise unlocks the rod, making it easy to disassemble.

[0023] like Figure 4 As shown, the assist mechanism includes a support platform 110, a lifting bar 103 is fixedly connected to one side of the support platform 110, the lifting bar 103 is slidably connected to one side of the connecting plate 100, and the lifting bar 103 can move up and down along the slide rail 102 on the side of the connecting plate 100 to ensure that the support platform 110 rises and falls smoothly without tilting.

[0024] A support wheel 114 is rotatably connected to the outer side of the sliding column 113. The support wheel 114 rolls in contact with the lower surface of the lifting bar 103. A slide frame 104 is connected to the upper end of the lifting bar 103. One end of the sliding column 113 is connected to a sliding rod 115 via a traction bar 116. The sliding rod 115 is slidably connected to the slide frame 104. A wrapping strap 112 is rotatably connected to one end of the sliding rod 115. The wrapping strap 112 is used to wrap around the patient's ankle. Figure 3 and Figure 5 As shown, when the sliding column 113 moves upward along the vertical section of the L-shaped groove 101, the support wheel 114 pushes the lifting bar 103 upward, causing the support platform 110 to lift the lower leg.

[0025] Once the sliding column 113 enters the horizontal section, the traction bar 116 pulls the sliding rod 115 towards the patient's head, and the wrapping belt 112 pulls the ankle to complete the knee flexion. During this process, the roller 111 on the support platform 110 rolls with the movement of the lower leg, effectively reducing friction.

[0026] Several rollers 111 are rotatably connected to the support platform 110. The rollers 111 are used to reduce the friction between the patient's limb and the support platform 110, such as... Figure 4 As shown, by setting roller 111, the smoothness of limb movement when the patient performs knee flexion is improved.

[0027] A slide rail 102 is vertically connected to one side of the connecting plate 100, and the lifting bar 103 is slidably connected to the slide rail 102. Figure 1 As shown, by setting the slide rail 102, the stability of the vertical lifting of the lifting bar 103 is ensured.

[0028] In summary, the operation procedure of the integrated lower limb rehabilitation device after liver transplantation provided in this embodiment is as follows: First, move the device to one side of the bed so that one side of the lifting bar 103 faces the patient, and place the two positioning supports 106 between the two bed rails.

[0029] like Figure 2 As shown, the internal threaded cylinder in the middle of the telescopic rod 107 is then rotated, causing the screws at both ends to screw outwards, pushing the two positioning supports 106 to slide away from each other along the sliding grooves on both sides of the drive unit 105 until the L-shaped bends are tightly abutted against the outer edge of the bed rail, thus completing the device fixation.

[0030] Next, as Figure 4 and Figure 5As shown, the patient's ankle is tied to the end of the slide bar 115 with the wrapping strap 112, and the lower leg is placed flat on the support platform 110, ensuring that the lower leg is in contact with the roller 111.

[0031] Start the drive unit 105, which drives the slide column 113 to move along the L-shaped groove 101.

[0032] In the initial stage, such as Figure 1 As shown, the sliding column 113 slides upward along the vertical groove section, the support wheel 114 rises accordingly and pushes the lower surface of the lifting bar 103, the lifting bar 103 moves smoothly upward along the slide rail 102, and the support platform 110 lifts the lower leg.

[0033] like Figure 3 As shown, when the sliding column 113 transitions to the horizontal groove section, the height of the support platform 110 remains unchanged. The sliding column 113 pulls the sliding rod 115 through the traction bar 116 to slide horizontally towards the patient's head on the slide frame 104. The wrapping belt 112 pulls the ankle, causing the knee joint to gradually flex. At this time, the roller 111 rolls with the lower leg to reduce resistance.

[0034] When the slide column 113 reaches the end of the horizontal groove section, the drive unit 105 rotates in the opposite direction, the slide column 113 slides back along the horizontal section, the slide rod 115 is pushed back, the ankle traction force is released, and the knee joint extends and returns to its original position.

[0035] Subsequently, the sliding column 113 re-enters the vertical section and moves downward, the support wheel 114 descends, the lifting bar 103 falls back, the support platform 110 lowers, and the patient's lower leg is smoothly placed back on the bed surface, completing one complete movement cycle.

[0036] During training, such as Figure 2 As shown, the rotational speed of the drive unit 105 can be adjusted to control the frequency of the action, so as to adapt to the rehabilitation tolerance of different patients.

[0037] The drive unit 105 of this lower limb rehabilitation device drives the sliding column 113 to slide cyclically along the L-shaped groove 101. The vertical section pushes the lifting bar 103 through the support wheel 114 to raise the lower leg, and the horizontal section pulls the sliding rod 115 through the traction bar 116 to pull the ankle to flex the knee. The roller 111 reduces friction and converts single power into compound rehabilitation movements, effectively preventing postoperative lower limb thrombosis, and is securely fixed and easy to operate.

[0038] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An integrated lower limb rehabilitation device after liver transplantation, comprising a connecting plate (100), characterized in that, The connecting plate (100) has an L-shaped groove (101) and a sliding column (113) is slidably connected to the L-shaped groove (101). A driving unit (105) is connected to one side of the connecting plate (100). The driving unit (105) is used to drive the sliding column (113) to slide on the L-shaped groove (101). An assist mechanism is connected to the sliding column (113). The assist mechanism is used to drive the patient's lower leg to lift and perform a cyclic reciprocating knee flexion movement.

2. The integrated lower limb rehabilitation device after liver transplantation according to claim 1, characterized in that, The drive unit (105) is slidably connected to a positioning support (106) on one side, and a telescopic rod (107) is connected between the positioning supports (106).

3. The integrated lower limb rehabilitation device after liver transplantation according to claim 2, characterized in that, The positioning support (106) is a long strip structure with an L-shaped cross-section. The two positioning supports (106) are driven to move away from each other by the telescopic rod (107), thereby being locked onto the bed railing.

4. The integrated lower limb rehabilitation device after liver transplantation according to claim 2, characterized in that, The telescopic rod (107) includes an internally threaded cylinder in the middle and screws threaded to its two ends. By rotating the internally threaded cylinder, the screws at both ends can be driven to move the positioning supports (106) closer to or further away from each other.

5. The integrated lower limb rehabilitation device after liver transplantation according to claim 1, characterized in that, The assist mechanism includes a support platform (110), a lifting bar (103) is fixedly connected to one side of the support platform (110), and the lifting bar (103) is slidably connected to one side of the connecting plate (100); The outer side of the sliding column (113) is rotatably connected to a support wheel (114), the support wheel (114) rolls in contact with the lower surface of the lifting bar (103), the upper end of the lifting bar (103) is connected to a slide frame (104), one end of the sliding column (113) is connected to a sliding rod (115) through a traction bar (116), the sliding rod (115) is slidably connected to the slide frame (104), one end of the sliding rod (115) is rotatably connected to a wrapping tape (112), the wrapping tape (112) is used to wrap around the patient's ankle.

6. The integrated lower limb rehabilitation device after liver transplantation according to claim 5, characterized in that, A plurality of rollers (111) are rotatably connected to the support platform (110), and the rollers (111) are used to reduce the friction between the patient's limb and the support platform (110).

7. The integrated lower limb rehabilitation device after liver transplantation according to claim 1, characterized in that, The connecting plate (100) is vertically connected to a slide rail (102) on one side, and the lifting bar (103) is slidably connected to the slide rail (102).

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