Leg traction device for orthopedic surgery

Abstract

The utility model discloses a leg traction device for orthopedic surgery, and belongs to the technical field of leg auxiliary protection, the leg traction device comprises a main body plate, a patient lies flat at the upper end of a medical bed, the main body plate can be integrally moved through a pull rod and universal wheels, the patient can place legs at the upper end of a U-shaped auxiliary plate, then a servo motor is started, and the U-shaped auxiliary plate is driven to rotate. The servo motor drives the lead screw to rotate, the lead screw is in threaded connection with the connecting sleeve, the connecting sleeve can move at the upper end of the stroke of the lead screw under the condition that the lead screw rotates, auxiliary sliding is conducted through the sliding rod so as to drive the movable plate to move, and the movable plate is adjusted to the proper position according to the leg length of a patient; the upper auxiliary plate is opened through the hinge seat, the legs are placed on the lower auxiliary plate and the upper end of the soft cushion arranged at the upper end of the lower auxiliary plate, then the upper auxiliary plate is reset through the hinge seat, the air cylinder is started, the air cylinder drives the pneumatic push rod to push the limiting flexible block to move to the legs of the patient, and the legs of the patient are fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of leg auxiliary protection, in particular to a leg traction device used for orthopedic surgery. Background Art

[0002] Orthopedics is one of the most common departments in major hospitals. It mainly studies the anatomy, physiology and pathology of the skeletal muscle system, and uses drugs, surgery and physical methods to maintain and develop the normal form and function of this system.

[0003] However, the existing leg traction device has a fixed size and cannot be adjusted according to the patient's height, leg length and thickness. It is also not convenient to adjust its angle. The patient can only maintain a fixed posture for a long time, which may cause physical discomfort and numbness, affecting the recovery progress. Therefore, those skilled in the art provide a leg traction device for orthopedic surgery to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a leg traction device for orthopedic surgery to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A leg traction device for orthopedic surgery comprises a main body plate, a fixing mechanism, an adjusting mechanism and a sliding mechanism, wherein one end of the main body plate is fixedly connected to a pull rod, each corner of the bottom end of the main body plate is fixedly connected to a universal wheel, an end of the upper end surface of the main body plate close to the pull rod is fixedly connected to a medical bed, a front end of the medical bed is fixedly connected to a fixing plate, the fixing plate is fixedly connected to the main body plate, a front end of the fixing plate is movably connected to a movable plate, the movable plate is movably connected to the main body plate, a sliding mechanism is arranged at the bottom end of the movable plate, a pair of symmetrical electric telescopic rods are fixedly connected to the upper ends of the electric telescopic rods, upper ends of the driven telescopic rods are movably connected to the adjusting mechanisms, and upper ends of the adjusting mechanisms are arranged at fixing mechanisms.

[0007] As a further solution of the utility model: the bottom end of the movable plate is fixedly connected to a pair of connecting sleeves, one end of the connecting sleeve is internally threadedly connected to a lead screw, one end of the lead screw away from the pull rod is fixedly connected to a servo motor, and the other end of the connecting sleeve is internally slidably connected to a slide rod.

[0008] As a further solution of the utility model: the inner side walls of the driven telescopic rod are movably connected to the worm, one end of the worm is fixedly connected to the hand wheel, the other end of the worm is fixedly connected to the ratchet, the end of the ratchet close to the worm is movably connected to the linkage disk, one end of the ratchet is movably connected to the pawl, the pawl and the linkage disk are movably connected, and the upper end of the pawl is fixedly connected to the adjusting rod.

[0009] As a further solution of the utility model: the left and right side walls of the driven telescopic rod are fixedly connected to the fixed rod, the end of the fixed rod away from the driven telescopic rod is movably connected to the connecting plate, the upper end of the worm is movably connected to the worm wheel, the left and right side walls of the worm wheel are movably connected to the connecting rod, one end of the driven telescopic rod is movably connected to the connecting plate, the upper end of the connecting plate at the upper end of the fixed plate is fixedly connected to the U-shaped auxiliary plate, the upper end of the connecting plate at the upper end of the movable plate is fixedly connected to the lower auxiliary plate, the side wall at one end of the lower auxiliary plate is fixedly connected to the hinge seat, the other end of the hinge seat is fixedly connected to the upper auxiliary plate, and a fixing mechanism is provided between the upper auxiliary plate and the lower auxiliary plate.

[0010] As a further solution of the utility model: the center position of the inner wall of the lower auxiliary plate is fixedly connected to the soft pad, the top end of the upper auxiliary plate is fixedly connected to the cylinder, the bottom end of the cylinder is movably connected to the pneumatic push rod, the pneumatic push rod is sleeved with the upper auxiliary plate, and the bottom end of the pneumatic push rod is fixedly connected to the limiting flexible block.

[0011] As a further solution of the utility model: the worm wheel is meshed with the worm, and the ratchet wheel is meshed with the pawl.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is provided with a sliding mechanism, and the device can control the rotation of the screw rod through the servo motor, thereby adjusting the position of the movable plate to adapt to the leg length and treatment needs of different patients. Through the combination of the servo motor and the screw rod, accurate position adjustment can be achieved to ensure the smoothness and accuracy of the movement of the movable plate, improve the treatment effect, and the patient can lie flat on the medical bed, and the main body plate can be conveniently moved to a suitable position as a whole through the pull rod and the universal wheel without the need for additional auxiliary equipment or manpower;

[0014] 2. Due to the fixing mechanism, the soft pad on the lower auxiliary plate can provide additional comfort, reduce the discomfort of patients during long-term use, and improve the comfort of patients. Fixing the patient's legs through the cylinder can ensure their safety during treatment, avoid unnecessary movement or sliding, and reduce the risk of accidental injury;

[0015] 3. Because an adjustment mechanism is provided, the angle of the U-shaped auxiliary plate or the lower auxiliary plate can be accurately controlled through the structural design of the hand-cranked wheel, the worm and the incomplete worm gear, so as to meet the angle adjustment needs of different patients and improve the personalization and accuracy of treatment. The limiting design of the ratchet and the pawl can ensure that the U-shaped auxiliary plate or the lower auxiliary plate remains at the set angle once the angle adjustment is completed, thus avoiding the risk of secondary injury caused by the mismovement or instability of the angle. The angle adjustment can be achieved through the hand-cranked wheel, which is simple and convenient to operate. Medical staff can easily adjust it according to the needs of the patient, thus improving the operating efficiency and convenience. Moreover, each adjustment mechanism is independently arranged, and medical staff can operate each adjustment mechanism according to the real-time needs of the patient, thus improving the comfort of the patient. The utility model relates to a leg traction device for orthopedic surgery. The utility model is simple and reasonable in structure and convenient and quick to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a schematic diagram of the structure of a leg traction device used in orthopedic surgery.

[0017] Figure 2 The present invention is a structural schematic diagram of a U-shaped auxiliary plate and upper and lower auxiliary plates in a leg traction device used in orthopedic surgery.

[0018] Figure 3 The present invention is a schematic diagram of the other end surface structure of the upper and lower auxiliary plates in a leg traction device used in orthopedic surgery.

[0019] Figure 4 This is a schematic diagram of the enlarged structure of point A in a leg traction device used in orthopedic surgery.

[0020] Figure 5 The present invention is a schematic diagram of the front cross-sectional structure of upper and lower auxiliary plates in a leg traction device used in orthopedic surgery.

[0021] In the figure: 1-main plate, 2-pull rod, 3-universal wheel, 4-medical bed, 5-fixed plate, 6-movable plate, 7-screw rod, 8-sliding rod, 9-connecting sleeve, 10-servo motor, 11-electric telescopic rod, 12-driven telescopic rod, 13-hand crank wheel, 14-worm, 15-fixed rod, 16-connecting rod, 17-worm gear, 18-connecting plate, 19-linkage disk, 20-ratchet, 21-pawl, 22-adjusting rod, 23-U-shaped auxiliary plate, 24-upper auxiliary plate, 25-lower auxiliary plate, 26-soft pad, 27-limiting flexible block, 28-cylinder, 29-pneumatic push rod, 30-articulated seat. DETAILED DESCRIPTION

[0022] See also Figures 1 to 5In the embodiment of the utility model, a leg traction device for orthopedic surgery includes a main body plate 1, a pull rod 2, a universal wheel 3, a medical bed 4, a fixed plate 5, a movable plate 6, a screw rod 7, a sliding rod 8, a connecting sleeve 9, a servo motor 10, an electric telescopic rod 11, a driven telescopic rod 12, a hand-cranked wheel 13, a worm 14, a fixed rod 15, a connecting rod 16, a worm wheel 17, a connecting plate 18, a linkage disk 19, a ratchet 20, a pawl 21, an adjusting rod 22, a U-shaped auxiliary plate 23, an upper auxiliary plate 24, a lower auxiliary plate 25, a soft cushion 26, a limit flexible block 27, a cylinder 28, a pneumatic push rod 29, and a hinge seat 30; one end of the main body plate 1 is fixedly connected to the pull rod 2, each corner of the bottom end of the main body plate 1 is fixedly connected to the universal wheel 3, and the upper end of the main body plate 1 The end of the surface close to the pull rod 2 is fixedly connected to the medical bed 4, the front end of the medical bed 4 is fixedly connected to the fixed plate 5, the fixed plate 5 is fixedly connected to the main plate 1, the front end of the fixed plate 5 is movably connected to the movable plate 6, the movable plate 6 is movably connected to the main plate 1, and a sliding mechanism is arranged at the bottom end of the movable plate 6. The upper end surfaces of the movable plate 6 and the fixed plate 5 are fixedly connected to a pair of symmetrical electric telescopic rods 11, the upper ends of the electric telescopic rods 11 are movably connected to the driven telescopic rods 12, the upper ends of the driven telescopic rods 12 are arranged with adjustment mechanisms, and the upper ends of the adjustment mechanisms are arranged with fixing mechanisms. The bottom end of the movable plate 6 is fixedly connected to a pair of connecting sleeves 9, one end of the connecting sleeve 9 is internally threadedly connected to the screw rod 7, the end of the screw rod 7 away from the pull rod 2 is fixedly connected to the servo motor 10, and the other end of the connecting sleeve 9 is internally slidably connected to the sliding Rod, the inner side walls of the driven telescopic rod 12 are movably connected to the worm 14, one end of the worm 14 is fixedly connected to the hand wheel 13, and the other end of the worm 14 is fixedly connected to the ratchet 20, and the end of the ratchet 20 close to the worm 14 is movably connected to the linkage disk 19, and one end of the ratchet 20 is movably connected to the pawl 21, and the pawl 21 is movably connected to the linkage disk 19, and the upper end of the pawl 21 is fixedly connected to the adjusting rod 22, the left and right side walls of the driven telescopic rod 12 are fixedly connected to the fixed rod 15, and the end of the fixed rod 15 away from the driven telescopic rod 12 is movably connected to the connecting plate 18, the upper end of the worm 14 is movably connected to the worm wheel 17, and the left and right side walls of the worm wheel 17 are movably connected to the connecting rod 16, and one end of the driven telescopic rod 12 is movably connected to the connecting plate 18. The upper ends of the connecting plates 18 at the upper ends of the fixed plate 5 are fixedly connected to the U-shaped auxiliary plates 23, and the upper ends of the connecting plates 18 at the upper ends of the movable plates 6 are fixedly connected to the lower auxiliary plates 25. The side walls of one end of the lower auxiliary plates 25 are fixedly connected to the hinge seats 30, and the other ends of the hinge seats 30 are fixedly connected to the upper auxiliary plates 24. A fixing mechanism is provided between the upper auxiliary plates 24 and the lower auxiliary plates 25. The center position of the inner side wall of the lower auxiliary plates 25 is fixedly connected to the soft pads 26. The top of the upper auxiliary plates 24 is fixedly connected to the cylinders 28, and the bottom ends of the cylinders 28 are movably connected to the pneumatic push rods 29. The pneumatic push rods 29 are sleeved and connected to the upper auxiliary plates 24. The bottom ends of the pneumatic push rods 29 are fixedly connected to the limiting flexible blocks 27. The worm gear 17 is meshed with the worm 14, and the ratchet 20 is meshed with the pawl 21.

[0023] The working principle of the utility model is as follows: the patient lies flat on the upper end of the medical bed 4, and the main body plate 1 can be moved as a whole through the pull rod 2 and the universal wheel 3. The patient can place the legs on the upper end of the U-shaped auxiliary plate 23, and then start the servo motor 10, the servo motor 10 drives the screw rod 7 to rotate, the screw rod 7 is threadedly connected to the connecting sleeve 9, and the connecting sleeve 9 can move at the upper end of the stroke of the screw rod 7 when the screw rod 7 rotates, and slide with the assistance of the slide rod 8, thereby driving the movable plate 6 to move, and the movable plate 6 is adjusted to a suitable position according to the patient's leg length, the upper auxiliary plate 24 is opened through the hinge seat 30, the legs are placed on the lower auxiliary plate 25 and the upper end of the soft cushion set on the upper end of the lower auxiliary plate 25, and then the upper auxiliary plate 24 is reset through the hinge seat 30, and the cylinder 28 is started, and the cylinder 28 drives the pneumatic push rod 29 to push the limit soft The block 27 moves to the patient's leg to fix the patient's leg; when the patient needs to adjust the leg angle, the hand crank wheel 13 can be shaken, and the hand crank wheel 13 drives the worm 14 to rotate, and the worm wheel 17 is meshed with the worm 14. When the worm 14 rotates, the worm wheel 17 can be controlled to rotate. The worm wheel 17 is an incomplete worm wheel, so that when the worm wheel 17 rotates, it can only drive the U-shaped auxiliary plate 23 or the lower auxiliary plate 25 to rotate from zero to one hundred and eighty degrees. After the adjustment is completed, the ratchet 20 at the other end of the worm wheel 14 is based on its own characteristics, and the ratchet 20 is meshed with the pawl 21, so that the pawl 21 can limit the ratchet 20 to prevent the worm wheel 17 from driving the U-shaped auxiliary plate 23 or the lower auxiliary plate 25 to move again, causing secondary damage to the patient. When resetting is required, the adjustment rod 22 is pulled to drive the pawl 21 out of the range of the ratchet 20;

[0024] Since the utility model is provided with a sliding mechanism, the device can control the rotation of the screw rod 7 through the servo motor 10, so as to adjust the position of the movable plate 6 to adapt to the leg length and treatment needs of different patients. Through the combination of the servo motor 10 and the screw rod 7, accurate position adjustment can be achieved to ensure the smoothness and accuracy of the movement of the movable plate 6 and improve the treatment effect. The patient can lie flat on the medical bed 4, and the main body plate 1 can be conveniently moved to a suitable position as a whole through the pull rod 2 and the universal wheel 3 without the need for additional auxiliary equipment or manpower. Since a fixing mechanism is provided, the cushion 26 on the lower auxiliary plate 25 can provide additional comfort, reduce the discomfort of the patient during long-term use, and improve the comfort of the patient. Fixing the patient's legs through the cylinder 28 can ensure their safety during treatment, avoid unnecessary movement or sliding, and reduce the risk of accidental injury. Since an adjustment mechanism is provided, through the hand-cranked wheel 13 and the worm 14 The structural design of the incomplete worm gear 17 can accurately control the angle of the U-shaped auxiliary plate 23 or the lower auxiliary plate 25, meet the angle adjustment needs of different patients, and improve the personalization and accuracy of treatment. The limiting design of the ratchet 20 and the pawl 21 can ensure that the U-shaped auxiliary plate 23 or the lower auxiliary plate 25 remains at the set angle once the angle adjustment is completed, avoiding the risk of secondary injury caused by accidental movement or instability of the angle. The angle adjustment can be achieved through the hand-cranked wheel 13, and the operation is simple and convenient. Medical staff can easily adjust it according to the needs of the patient, which improves the operating efficiency and convenience. Each adjustment mechanism is independently set, and medical staff can operate each adjustment mechanism according to the real-time needs of the patient, which improves the comfort of the patient. The utility model relates to a leg traction device for orthopedic surgery. The utility model is simple and reasonable in structure and easy and quick to operate.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A leg traction device for orthopedic surgery, comprising a main body plate (1), a fixing mechanism, an adjusting mechanism and a sliding mechanism, characterized in that: One end of the main body plate (1) is fixedly connected to the pull rod (2), and each corner of the bottom end of the main body plate (1) is fixedly connected to the universal wheel (3). The upper end of the main body plate (1) is fixedly connected to the medical bed (4) at one end close to the pull rod (2). The front end of the medical bed (4) is fixedly connected to the fixed plate (5), the fixed plate (5) is fixedly connected to the main body plate (1), the front end of the fixed plate (5) is movably connected to the movable plate (6), the movable plate (6) is movably connected to the main body plate (1), the bottom end of the movable plate (6) is provided with a sliding mechanism, the upper end surfaces of the movable plate (6) and the fixed plate (5) are fixedly connected to a pair of symmetrical electric telescopic rods (11), the upper ends of the electric telescopic rods (11) are movably connected to the driven telescopic rods (12), the upper ends of the driven telescopic rods (12) are provided with adjustment mechanisms, and the upper ends of the adjustment mechanisms are provided with fixing mechanisms.

2. A leg traction device for orthopedic surgery according to claim 1, characterized in that: The sliding mechanism comprises a screw rod (7), a slide rod (8), a connecting sleeve (9), and a servo motor (10); the bottom end of the movable plate (6) is fixedly connected to a pair of connecting sleeves (9); one end of the connecting sleeve (9) is internally threadedly connected to the screw rod (7); one end of the screw rod (7) away from the pull rod (2) is fixedly connected to the servo motor (10); the other end of the connecting sleeve (9) is internally slidably connected to the slide rod (8).

3. A leg traction device for orthopedic surgery according to claim 1, characterized in that: The adjusting mechanism comprises a hand-cranked wheel (13), a worm (14), a fixed rod (15), a connecting rod (16), a worm wheel (17), a connecting plate (18), a linkage disk (19), a ratchet (20), a pawl (21), an adjusting rod (22), a U-shaped auxiliary plate (23), an upper auxiliary plate (24), a lower auxiliary plate (25), and a hinge seat (30). The inner side wall of the driven telescopic rod (12) is movably connected to the worm (14), one end of the worm (14) is fixedly connected to the hand-cranked wheel (13), the other end of the worm (14) is fixedly connected to the ratchet (20), one end of the ratchet (20) close to the worm (14) is movably connected to the linkage disk (19), one end of the ratchet (20) is movably connected to the pawl (21), the pawl (21) is movably connected to the linkage disk (19), and the upper end of the pawl (21) is fixedly connected to the adjusting rod (22).

4. A leg traction device for orthopedic surgery according to claim 3, characterized in that: The left and right side walls of the driven telescopic rod (12) are fixedly connected to the fixed rod (15), one end of the fixed rod (15) away from the driven telescopic rod (12) is movably connected to the connecting plate (18), the upper end of the worm (14) is movably connected to the worm wheel (17), the left and right side walls of the worm wheel (17) are movably connected to the connecting rod (16), and one end of the driven telescopic rod (12) is movably connected to the connecting plate (18).

5. A leg traction device for orthopedic surgery according to claim 4, characterized in that: The upper ends of the connecting plates (18) at the upper ends of the fixed plates (5) are fixedly connected to the U-shaped auxiliary plates (23), the upper ends of the connecting plates (18) at the upper ends of the movable plates (6) are fixedly connected to the lower auxiliary plates (25), the side walls of one end of the lower auxiliary plates (25) are fixedly connected to the hinge seats (30), the other ends of the hinge seats (30) are fixedly connected to the upper auxiliary plates (24), and a fixing mechanism is provided between the upper auxiliary plates (24) and the lower auxiliary plates (25).

6. A leg traction device for orthopedic surgery according to claim 5, characterized in that: The fixing mechanism comprises a soft pad (26), a limit flexible block (27), a cylinder (28), and a pneumatic push rod (29); the inner side wall of the lower auxiliary plate (25) is fixedly connected to the soft pad (26) at the center position; the top end of the upper auxiliary plate (24) is fixedly connected to the cylinder (28); the bottom end of the cylinder (28) is movably connected to the pneumatic push rod (29); the pneumatic push rod (29) is sleeved and connected to the upper auxiliary plate (24); and the bottom end of the pneumatic push rod (29) is fixedly connected to the limit flexible block (27).

7. A leg traction device for orthopedic surgery according to claim 3, characterized in that: The worm wheel (17) is meshed with the worm (14), and the ratchet wheel (20) is meshed with the ratchet pawl (21).

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