Orthopedic clinical leg stretching device

Abstract

The application discloses a leg stretching device for orthopedics, and relates to the technical field of leg stretching for orthopedics, which comprises a backrest plate, a headrest block fixing block installed at the right middle end of the backrest plate, a headrest block installed at the top middle end of the headrest block fixing block, a controller installed at the top front side of the headrest block fixing block, and handles installed at the top front and rear middle ends of the backrest plate. The lifting supporting mechanism is arranged, so that the patient can use the leg stretching device for orthopedics more conveniently. The adjusting and fixing mechanism is arranged, so that the position of the leg is prevented from deviating during treatment, and the treatment effect is not poor. The knee bending movement mechanism is arranged, so that the leg of the patient can be stretched and exercised, the recovery time of the patient is shortened, the foot plate stretching mechanism is arranged, so that the patient can stretch the leg ligament, the patient can comprehensively stretch the leg, and the leg stretching efficiency of the patient is improved.

Description

Technical Field

[0001] This invention relates to the field of orthopedic leg stretching, specifically to a leg stretching device for clinical use in orthopedics. Background Technology

[0002] When patients are bedridden for extended periods, muscle atrophy can easily occur, necessitating a certain level of rehabilitation training. For leg rehabilitation, the main focus is on assisting with the commonly used muscles in the legs. Typically, after the patient lies flat, medical staff massage the patient's legs and assist with leg movements. This process is physically demanding for the medical staff, and if their techniques and pressure are not standardized, it can easily increase the patient's pain and affect the effectiveness of stretching and recovery.

[0003] Most optimizations of existing orthopedic clinical leg stretching devices focus on improving their practicality. For example, Chinese utility model patent CN202021659791.6 discloses "An Orthopedic Clinical Leg Stretching Device," which includes a base plate, slide rail, slide shaft, first support rod, first leg plate, movable buckle, rotator, second leg plate, straps, slot box, first fixing plate, main plate, second support rod, second fixing plate, handrail, hinge, and lifting plate. The top of the lifting plate is movably connected to a rotating shaft, and a telescopic rod is movably connected between the rotating shaft and the base plate. An adjuster is provided on the surface of the telescopic rod. The main advantage of this utility model is that it provides an orthopedic clinical leg stretching device where, when the patient lies flat on the device, the leg plate automatically retracts through the cooperation of the spring device box, slide rail, and slide shaft, allowing for repeated leg extension movements to stretch the leg. Rotating the movable buckle enables flexion exercises between the lower leg and thigh, accelerating leg recovery.

[0004] While the aforementioned orthopedic clinical leg stretching devices have certain advantages in improving the practicality of orthopedic clinical leg stretching devices, they still have certain drawbacks:

[0005] 1. For example Figure 10 As shown, when the patient lies flat on the device, the height of the lifting plate can be adjusted by the adjuster so that the patient can sit up, raise the baffle, and place their feet against the footplate. The patient then pushes the baffle forward with force. Through the cooperation of the spring device, slide rail and slide shaft, the leg plate can automatically retract, thus enabling repeated pushing actions. However, the above-mentioned orthopedic clinical leg stretching device is difficult to perform a full 90-degree rotation, making it difficult for the patient to straighten up, which makes the use of the orthopedic clinical leg stretching device inconvenient for the patient.

[0006] 2. The aforementioned orthopedic clinical leg stretching device is difficult to adjust according to the length of the patient's leg, making it difficult for the patient to receive better treatment. Furthermore, the device is difficult to hold the patient's thigh and calf, causing the leg position to shift during treatment, resulting in poor treatment effect.

[0007] 3. The above-mentioned orthopedic clinical leg stretching devices make it difficult for patients to perform reciprocating knee flexion movements, making it difficult for patients' legs to get stretching exercises, and making it difficult to shorten the patients' recovery time.

[0008] 4. The above-mentioned orthopedic clinical leg stretching devices are difficult to stretch the ligaments of the patient's lower leg, making it difficult for the patient to perform a comprehensive leg stretch, thus reducing the efficiency of the leg stretch. Summary of the Invention

[0009] Therefore, in order to overcome the above-mentioned shortcomings, the present invention provides a leg stretching device for orthopedic clinical use.

[0010] The present invention is implemented as follows: a leg stretching device for clinical use in orthopedics is constructed, the device including a backrest, a headrest block fixing block installed at the middle of the right side of the backrest, a headrest block installed at the middle of the top of the headrest block fixing block, a controller installed at the front of the top of the headrest block fixing block, and handles installed at the middle of the front and rear sides of the top of the backrest.

[0011] Its characteristic is that it also includes:

[0012] A lifting support mechanism, wherein the top middle end of the lifting support mechanism is fixedly connected to the bottom middle end of the backrest panel;

[0013] An adjusting and fixing mechanism is provided, wherein the front and rear ends of the upper right inner side of the adjusting and fixing mechanism are rotatably connected to the front and rear ends of the upper left side of the lifting support mechanism.

[0014] A knee flexion mechanism, wherein the lower rear end of the knee flexion mechanism is fixedly connected to the inner rear end of the lower end of the adjustment and fixing mechanism;

[0015] The lower right end of the foot plate stretching mechanism is fixedly connected to the upper left end of the adjustment and fixing mechanism at both ends.

[0016] Preferably, the lifting support mechanism includes:

[0017] A right-side support column is located on the right side of the lifting support mechanism.

[0018] A support plate, the front and rear ends of the right side of which are fixedly connected to the lower left end of the right support column;

[0019] A fixed support column is provided, with its lower right end fixedly connected to the front and rear ends of the left side of the support plate.

[0020] A fixed connecting block, wherein the bottom left end of the fixed connecting block is fixedly connected to the top of the fixed support column, and the front and rear ends of the right inner side of the fixed connecting block are rotatably connected to the front and rear ends of the left side of the backrest plate;

[0021] A partition board, the bottom of which is fixedly connected to the right side of the top of the support plate;

[0022] A lifting mechanism, wherein the bottom left side of the lifting mechanism is fixedly connected to the top left side of the support plate;

[0023] The top surface of the right support column contacts the bottom right contact surface of the backrest panel, and the top of the partition panel is fixedly connected to the bottom right side of the backrest panel.

[0024] Preferably, the lifting mechanism includes:

[0025] The motor is located on the right side of the lifting mechanism;

[0026] The transmission mechanism is connected to the lower end of the motor by the lower end of the motor's output shaft through its top right side.

[0027] Rotate the screw rod, the lower end of which passes through the upper and lower left ends of the support plate and is rotatably connected to the upper and lower left ends of the support plate; the bottom of the screw rod is fixedly connected to the top left side of the transmission mechanism.

[0028] A sliding groove block, wherein the left ends of the upper and lower sides of the sliding groove block are penetrated by the lower end of the rotating screw rod and are threadedly connected to the lower end of the rotating screw rod;

[0029] The slide block has its bottom fixedly connected to the bottom left side of the support plate, its top fixedly connected to the bottom right side of the fixed connection block, and its right inner surface of the slide block slidably connected to the left end of the outer surface of the sliding slide block.

[0030] A support rod is provided, the lower end of the outer surface of which is slidably connected to the inner surface of the top groove of the sliding groove block.

[0031] A rotating rod connecting block, wherein the middle front end of the rotating rod connecting block is rotatably connected to the upper rear end of the supporting rotating rod, and the upper end of the rotating rod connecting block passes through the middle left side of the bottom of the backrest panel and is fixedly connected to the middle left side of the bottom of the backrest panel;

[0032] The lower end of the motor is fixedly connected to the top right side of the support plate, and the upper end of the lower output shaft of the motor passes through the upper and lower right ends of the support plate and is rotatably connected to the upper and lower right ends of the support plate.

[0033] Preferably, the adjusting and fixing mechanism includes:

[0034] A sliding cylinder is disposed at the lower right end of the adjusting and fixing mechanism;

[0035] A sliding rod, the right end of the outer surface of which is slidably connected to the inner surface of the sliding cylinder;

[0036] The lower right end of the left support column is fixedly connected to the left end of the slide rod.

[0037] An adjustment mechanism, wherein the front and rear ends of the inner right side of the adjustment mechanism are rotatably connected to the front and rear ends of the upper left side of the lifting support mechanism;

[0038] A fixing mechanism, wherein the bottom middle of the fixing mechanism is fixedly connected to the top right middle of the adjusting mechanism;

[0039] The right end of the slide cylinder is fixedly connected to the front and rear sides of the lower left side of the lifting support mechanism.

[0040] Preferably, the adjustment mechanism includes:

[0041] A right adjustment plate, wherein the right adjustment plate is disposed at the right end of the adjustment mechanism;

[0042] A screw, the right end of which passes through the front and rear ends of the left side of the right adjusting plate and is threadedly connected to the front and rear ends of the left side of the right adjusting plate;

[0043] The left adjusting plate has its front and rear ends on the right side penetrated by the left end of the screw and threadedly connected to the left end of the screw.

[0044] A pin-shaped screw rod, the upper end of which passes through the middle of the bottom of the screw rod and is threadedly connected to the middle of the bottom of the screw rod;

[0045] The right inner side of the right adjustment plate is rotatably connected to the left upper side of the lifting support mechanism at both ends.

[0046] Preferably, the fixing mechanism includes:

[0047] Limiting strips are provided on the front and rear sides and left and right ends of the fixing mechanism;

[0048] A clamping slider, wherein the lower ends of the left and right sides of the clamping slider are slidably connected to the inner surface of the limiting strip;

[0049] A vertical connecting plate, the lower rear end of which is fixedly connected to the middle of the front and rear sides of the right adjusting plate;

[0050] A knob screw, the middle end of which passes through the upper ends of the front and rear sides of the vertical connecting plate and is threadedly connected to the upper ends of the front and rear sides of the vertical connecting plate;

[0051] A clamping and fixing block, the bottom of which is fixedly connected to the middle of the top of the right adjusting plate;

[0052] The bottom of the limiting strip is fixedly connected to the front and rear sides and the left and right ends of the top of the right adjusting plate.

[0053] Preferably, the knee flexion mechanism includes:

[0054] A knee flexion mechanism connecting plate is disposed at the upper front end of the knee flexion mechanism;

[0055] The upper rear end of the knee flexion mechanism rotating rod is rotatably connected to the middle front and rear ends of the knee flexion mechanism connecting plate;

[0056] A rotating rod connecting plate, the top left and right ends of which are fixedly connected to the bottom of the rotating rod of the knee bending motion mechanism;

[0057] The top of the upper front protrusion of the slider is fixedly connected to the middle bottom of the rotating rod connecting plate.

[0058] A knee flexion mechanism slide block, wherein the inner surface of the front slide block is slidably connected to the left and right surfaces of the slider.

[0059] A long rotating rod, the upper rear end of which is rotatably connected to the middle front end of the slider.

[0060] Preferably, the knee flexion mechanism further includes:

[0061] An irregularly shaped connecting plate, the top left side of which is fixedly connected to the bottom of the sliding block of the knee flexion mechanism;

[0062] Small rotating shaft block, the upper right rear end of the small rotating shaft block is rotatably connected to the front and rear middle ends of the irregular connecting plate;

[0063] A rhomboid arc block, wherein the middle rear end of the rhomboid arc block is rotatably connected to the lower left front end of the small rotating shaft block, and the lower left front end of the rhomboid arc block is rotatably connected to the lower rear end of the long rotating rod;

[0064] The short rotating rod has its lower rear end rotatably connected to the upper right front end of the rhomboid arc block, and its upper rear end rotatably connected to the upper right side of the front end of the irregular connecting plate.

[0065] A motor fixing plate, the front side of which is fixedly connected to the middle rear side and the upper rear side of the irregular connecting plate, and the rear side of which is fixedly connected to the middle left end of the inner rear side of the slide cylinder;

[0066] The knee flexion mechanism motor is fixedly connected to the front end of the inner side of the motor fixing plate on both the upper and lower sides of the knee flexion mechanism motor, and the front end of the front output shaft of the knee flexion mechanism motor is fixedly connected to the upper right end of the rear side of the small rotating shaft block.

[0067] The top of the knee flexion mechanism connecting plate is fixedly connected to the middle of the bottom of the adjustment mechanism.

[0068] Preferably, the footplate stretching mechanism includes:

[0069] Foot plate stretching mechanism compartment, wherein the foot plate stretching mechanism compartment is disposed outside the foot plate stretching mechanism;

[0070] A small electric push rod, the bottom of which is fixedly connected to the left side of the bottom end of the inner side of the foot plate stretching mechanism compartment;

[0071] An electric actuator connecting block, the bottom of which is fixedly connected to the top right side of the small electric actuator;

[0072] The bottom left end of the sliding rod is fixedly connected to the top of the electric push rod connecting block;

[0073] The right side of the sliding rod spring is fixedly connected to the left end of the right side protrusion of the sliding rod, and the left end of the sliding rod spring is fixedly connected to the lower right end of the foot plate stretching mechanism compartment.

[0074] A fixing hole block is fixedly connected to the right middle of the inside of the foot plate stretching mechanism compartment on the right side;

[0075] The footplate stretching mechanism rotating rod has its front and rear middle ends rotatably connected to the front and rear ends of the left side of the hole of the fixed hole block, and its rear lower end is rotatably connected to the front left end of the sliding rod.

[0076] The upper sliding rod is rotatably connected to the upper rear end of the rotating rod of the foot plate tensioning mechanism.

[0077] The upper slide bar spring has its right side fixedly connected to the left end of the right side protrusion of the upper slide bar, and its left end fixedly connected to the upper right end of the foot plate stretching mechanism compartment.

[0078] The lower right end of the foot plate stretching mechanism compartment is fixedly connected to the upper left end of the adjustment and fixing mechanism.

[0079] Preferably, the adjusting mechanism and the fixing mechanism are provided in two sets, with the front and rear ends of the right inner side of the left adjusting mechanism rotatably connected to the front and rear ends of the left adjusting mechanism. The two sets of fixing mechanisms have the same structure but different sizes, with the left fixing mechanism being smaller than the right fixing mechanism.

[0080] The present invention has the following advantages: The present invention provides an improved leg stretching device for orthopedic clinical use, which, compared with similar devices, has the following improvements:

[0081] The present invention discloses a leg stretching device for clinical use in orthopedics. By setting up a lifting support mechanism, the motor in the lifting support mechanism drives the backrest to rotate, allowing the backrest to rotate 90 degrees, so that the patient can sit completely upright. Moreover, the large range of rotation angles of the backrest makes it easier for the patient to find the most comfortable position, making it more convenient for the patient to use the leg stretching device for clinical use in orthopedics.

[0082] The present invention discloses a leg stretching device for clinical orthopedic use. By incorporating an adjustment and fixation mechanism, rotating the screw in this mechanism increases the distance between the right and left adjustment plates, allowing the adjustment mechanism to be tailored to the patient's leg length. This enables the patient to better receive treatment. Rotating the knob screw in the adjustment and fixation mechanism causes the clamping slider and clamping fixation block to clamp the patient's thigh and calf, ensuring the patient is firmly fixed during treatment and preventing leg displacement that could lead to poor treatment outcomes.

[0083] The present invention discloses a leg stretching device for clinical use in orthopedics. By setting up a knee flexion mechanism, the motor of the knee flexion mechanism drives the connection between the two adjustment mechanisms to move up and down and rotate, so that the patient can perform reciprocating knee flexion movements, thereby stretching and exercising the patient's legs and shortening the patient's recovery time.

[0084] The present invention discloses a leg stretching device for clinical use in orthopedics. By setting up a foot plate stretching mechanism, the operation of a small electric push rod in the foot plate stretching mechanism drives the lower sliding rod and the upper sliding rod to squeeze the patient's foot plate, so that the patient can stretch the calf ligaments and perform a comprehensive leg stretch, thereby improving the efficiency of the patient's leg stretching. Attached Figure Description

[0085] Figure 1 This is a schematic diagram of the structure of the present invention;

[0086] Figure 2 This is a cross-sectional view of the present invention;

[0087] Figure 3 This is a cross-sectional view of the lifting support mechanism of the present invention;

[0088] Figure 4 This is a schematic diagram of the lifting support mechanism of the present invention;

[0089] Figure 5 This is a cross-sectional view of the adjusting and fixing mechanism of the present invention;

[0090] Figure 6 This is a schematic diagram of the adjusting and fixing mechanism of the present invention;

[0091] Figure 7 This is an elevation view of the knee flexion mechanism of the present invention;

[0092] Figure 8 This is a schematic diagram of the knee flexion mechanism of the present invention;

[0093] Figure 9 This is a cross-sectional view of the foot plate stretching mechanism of the present invention;

[0094] Figure 10 This is a schematic diagram of existing technology.

[0095] The components include: backrest panel-1, headrest block fixing block-2, headrest block-3, controller-4, handle-5, lifting support mechanism-6, right side support column-61, support plate-62, fixed support column-63, fixed connecting block-64, partition plate-65, lifting mechanism-66, motor-661, transmission mechanism-662, rotating screw rod-663, sliding groove block-664, groove block-665, support rotating rod-666, rotating rod connecting block-667, adjusting and fixing mechanism-7, slide cylinder-71, slide rod-72, left support column-73, adjusting mechanism-74, right adjusting plate-741, screw rod-742, left adjusting plate-743, pin rotating rod-744, fixing mechanism-75, limit bar-751, clamping slider-75. 2. Vertical connecting plate - 753, Knob screw - 754, Clamping fixing block - 755, Knee flexion mechanism - 8, Knee flexion mechanism connecting plate - 81, Knee flexion mechanism rotating rod - 82, Rotating rod connecting plate - 83, Slider - 84, Knee flexion mechanism slide block - 85, Long rotating rod - 86, Irregular connecting plate - 87, Small rotating shaft block - 88, Diamond arc block - 89, Short rotating rod - 810, Motor fixing plate - 811, Knee flexion mechanism motor - 812, Foot plate stretching mechanism - 9, Foot plate stretching mechanism compartment - 91, Small electric push rod - 92, Electric push rod connecting block - 93, Slide rod - 94, Slide rod spring - 95, Fixing hole block - 96, Foot plate stretching mechanism rotating rod - 97, Upper slide rod - 98, Upper slide rod spring - 99. Detailed Implementation

[0096] The following will be combined with the appendix Figure 1-9 This invention will be described in detail, and the technical solutions in the embodiments of this invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0097] like Figures 1 to 9 As shown, a leg stretching device for clinical use in orthopedics includes a backrest 1, a headrest block fixing block 2 installed at the middle of the right side of the backrest 1, a headrest block 3 installed at the middle of the top of the headrest block fixing block 2, a controller 4 installed at the front of the top of the headrest block fixing block 2, and handles 5 installed at the middle of the front and rear sides of the top of the backrest 1.

[0098] The top middle of the lifting support mechanism 6 is fixedly connected to the bottom middle of the backrest panel 1, so that the lifting support mechanism 6 can provide left support for the backrest panel 1.

[0099] The upper right inner sides of the adjusting and fixing mechanism 7 are rotatably connected to the upper left sides of the lifting support mechanism 6, so that the adjusting and fixing mechanism 7 is fixed.

[0100] The lower rear end of the knee flexion mechanism 8 is fixedly connected to the lower inner rear end of the adjustment and fixing mechanism 7, so that the knee flexion mechanism 8 can drive the adjustment and fixing mechanism 7 to operate.

[0101] The lower right end of the foot plate stretching mechanism 9 is fixedly connected to the front and rear ends of the upper left side of the adjusting and fixing mechanism 7, so that the foot plate stretching mechanism 9 is fixed.

[0102] The right support column 61 is located on the right side of the lifting support mechanism 6, and the front and rear ends of the right side of the support plate 62 are fixedly connected to the lower left end of the right support column 61, so that the support plate 62 is fixed.

[0103] The lower right end of the fixed support column 63 is fixedly connected to the front and rear ends of the left side of the support plate 62, so that the fixed support column 63 is fixed.

[0104] The bottom left end of the fixed connecting block 64 is fixedly connected to the top of the fixed support column 63, and the front and rear ends of the inner right side of the fixed connecting block 64 are rotatably connected to the front and rear ends of the left side of the backrest plate 1, so that the fixed connecting block 64 is fixed.

[0105] The bottom of the partition plate 65 is fixedly connected to the right side of the top of the support plate 62, so that the partition plate 65 divides the top space of the support plate 62 into two parts.

[0106] The bottom left side of the lifting mechanism 66 is fixedly connected to the top left side of the support plate 62, the top surface of the right support column 61 is in contact with the bottom right side of the backrest 1, and the top of the partition plate 65 is fixedly connected to the bottom right side of the backrest 1, so that the lifting mechanism 66 can drive the backrest 1 to rotate.

[0107] The motor 661 is located on the right side of the lifting mechanism 66. The lower end of the output shaft of the motor 661 passes through the top right side of the transmission mechanism 662 and is fixedly connected to the lower end of the motor 661, so that the operation of the motor 661 can drive the transmission mechanism 662 to perform transmission.

[0108] The lower end of the rotating screw 663 passes through the upper and lower left ends of the support plate 62 and is rotatably connected to the upper and lower left ends of the support plate 62. The bottom of the rotating screw 663 is fixedly connected to the top left side of the transmission mechanism 662, so that the transmission mechanism 662 can drive the rotating screw 663 to rotate.

[0109] The left ends of the upper and lower sides of the sliding groove block 664 are penetrated by the lower end of the rotating screw rod 663 and are threadedly connected to the lower end of the rotating screw rod 663, so that the rotation of the rotating screw rod 663 can drive the sliding groove block 664 to slide up and down.

[0110] The bottom of the slide block 665 is fixedly connected to the bottom left side of the support plate 62, the top of the slide block 665 is fixedly connected to the bottom right side of the fixed connecting block 64, and the inner surface of the right slide of the slide block 665 is slidably connected to the left end of the outer surface of the sliding slide block 664, so that the sliding slide block 664 can slide on the slide block 665.

[0111] The lower end of the outer surface of the support rod 666 is slidably connected to the inner surface of the top groove of the sliding block 664, so that the sliding block 664 can drive the support rod 666 to move.

[0112] The front middle end of the rotating rod connecting block 667 is rotatably connected to the rear upper end of the supporting rotating rod 666. The upper end of the rotating rod connecting block 667 passes through the bottom left side of the backrest plate 1 and is fixedly connected to the bottom left side of the backrest plate 1. The lower end of the motor 661 is fixedly connected to the top right side of the support plate 62. The upper end of the lower output shaft of the motor 661 passes through the upper and lower right sides of the support plate 62 and is rotatably connected to the upper and lower right sides of the support plate 62, so that the supporting rotating rod 666 can drive the backrest plate 1 to rotate.

[0113] The slide cylinder 71 is located at the lower right end of the adjusting and fixing mechanism 7, and the right end of the outer surface of the slide rod 72 is slidably connected to the inner surface of the slide cylinder 71, so that the slide rod 72 can slide inside the slide cylinder 71;

[0114] The lower right end of the left support column 73 is fixedly connected to the left end of the slide rod 72, thus fixing the left support column 73 in place.

[0115] The front and rear ends of the right inner side of the adjusting mechanism 74 are rotatably connected to the front and rear ends of the left upper end of the lifting support mechanism 6, so that the adjusting mechanism 74 is fixed.

[0116] The bottom middle of the fixing mechanism 75 is fixedly connected to the top right middle of the adjusting mechanism 74, and the right end of the slide cylinder 71 is fixedly connected to the front and rear sides of the lower left side of the lifting support mechanism 6, so that the fixing mechanism 75 is fixed.

[0117] The right adjustment plate 741 is located at the right end of the adjustment mechanism 74. The right end of the screw 742 passes through the front and rear ends of the left side of the right adjustment plate 741 and is threadedly connected to the front and rear ends of the left side of the right adjustment plate 741, so that the right adjustment plate 741 can be moved by rotating the screw 742.

[0118] The left adjusting plate 743 is connected to the left end of the screw 742 through the front and rear ends on the right side, and is threaded to the left end of the screw 742, so that the left adjusting plate 743 can be moved by rotating the screw 742.

[0119] The upper end of the pin 744 passes through the bottom middle of the screw 742 and is threaded to the bottom middle of the screw 742. The front and rear ends of the inner right side of the right adjustment plate 741 are rotatably connected to the front and rear ends of the upper left side of the lifting support mechanism 6, so that the pin 744 can be inserted into the screw 742 and drive the screw 742 to rotate.

[0120] The limiting strip 751 is set on the front and rear sides and left and right ends of the fixing mechanism 75. The lower ends of the left and right sides of the clamping slider 752 are slidably connected to the inner surface of the limiting strip 751, so that the clamping slider 752 can slide.

[0121] The lower rear end of the vertical connecting plate 753 is fixedly connected to the middle of the front and rear sides of the right adjusting plate 741, so that the vertical connecting plate 753 is fixed.

[0122] The middle end of the knob screw 754 passes through the upper ends of the front and rear sides of the vertical connecting plate 753 and is threadedly connected to the upper ends of the front and rear sides of the vertical connecting plate 753, so that the knob screw 754 can drive the clamping slider 752 to slide.

[0123] The bottom of the clamping and fixing block 755 is fixedly connected to the top middle of the right adjusting plate 741, and the bottom of the limiting strip 751 is fixedly connected to the front and rear sides and left and right ends of the top of the right adjusting plate 741, so that the clamping and fixing block 755 is fixed.

[0124] The knee flexion mechanism connecting plate 81 is located at the upper front end of the knee flexion mechanism 8, and the upper rear end of the knee flexion mechanism rotating rod 82 is rotatably connected to the middle front and rear ends of the knee flexion mechanism connecting plate 81, so that the knee flexion mechanism rotating rod 82 is fixed.

[0125] The top left and right ends of the rotating rod connecting plate 83 are fixedly connected to the bottom of the rotating rod 82 of the knee bending movement mechanism, so that the rotating rod connecting plate 83 can drive the rotating rod 82 of the knee bending movement mechanism to move.

[0126] The top of the protrusion on the upper front side of the slider 84 is fixedly connected to the middle bottom of the rotating rod connecting plate 83, so that the slider 84 can drive the rotating rod connecting plate 83 to move.

[0127] The inner surface of the front groove of the knee flexion mechanism slide block 85 is slidably connected to the left and right side surfaces of the slider 84, so that the slider 84 can slide on the knee flexion mechanism slide block 85.

[0128] The upper rear end of the long rotating rod 86 is rotatably connected to the middle front end of the slider 84, so that the long rotating rod 86 can drive the slider 84 to slide.

[0129] The top left side of the irregular connecting plate 87 is fixedly connected to the bottom of the sliding block 85 of the knee bending movement mechanism, so that the irregular connecting plate 87 is fixed.

[0130] The upper right rear end of the small rotating shaft block 88 is rotatably connected to the front and rear middle ends of the irregular connecting plate 87, thus restricting the small rotating shaft block 88.

[0131] The middle rear end of the rhomboid arc block 89 is rotatably connected to the lower left front end of the small rotating shaft block 88, and the lower left front end of the rhomboid arc block 89 is rotatably connected to the lower rear end of the long rotating rod 86, so that the small rotating shaft block 88 can drive the rhomboid arc block 89 to rotate and move.

[0132] The lower rear end of the short rotating rod 810 is rotatably connected to the upper right front end of the rhomboid arc block 89, and the upper rear end of the short rotating rod 810 is rotatably connected to the upper right front end of the irregular connecting plate 87, so that the short rotating rod 810 can restrict the rhomboid arc block 89.

[0133] The front side of the motor fixing plate 811 is fixedly connected to the middle rear side of the irregular connecting plate 87 and the upper rear side of the irregular connecting plate 87. The rear side of the motor fixing plate 811 is fixedly connected to the middle left end of the inner rear side of the slide cylinder 71, so that the motor fixing plate 811 is fixed.

[0134] The upper and lower sides of the knee flexion mechanism motor 812 are fixedly connected to the front end of the inner side of the motor fixing plate 811. The front end of the front output shaft of the knee flexion mechanism motor 812 is fixedly connected to the upper right end of the rear side of the small rotating shaft block 88. The top of the knee flexion mechanism connecting plate 81 is fixedly connected to the middle end of the bottom of the adjustment mechanism 74, so that the knee flexion mechanism motor 812 can drive the small rotating shaft block 88 to rotate.

[0135] The foot plate stretching mechanism compartment 91 is located outside the foot plate stretching mechanism 9, and the bottom of the small electric push rod 92 is fixedly connected to the left side of the bottom inner side of the foot plate stretching mechanism compartment 91, so that the small electric push rod 92 is fixed.

[0136] The bottom of the electric actuator connecting block 93 is fixedly connected to the top right side of the small electric actuator 92, so that the small electric actuator 92 can drive the electric actuator connecting block 93 to move.

[0137] The bottom left end of the sliding rod 94 is fixedly connected to the top of the electric push rod connecting block 93, so that the electric push rod connecting block 93 can drive the sliding rod 94 to move.

[0138] The right side of the sliding rod spring 95 is fixedly connected to the left end of the right side protrusion of the sliding rod 94, and the left end of the sliding rod spring 95 is fixedly connected to the lower right end of the foot plate tensioning mechanism chamber 91, so that the sliding rod spring 95 can provide elastic support for the sliding rod 94.

[0139] The right side of the fixing hole block 96 is fixedly connected to the middle right side of the foot plate tensioning mechanism compartment 91, so that the fixing hole block 96 is fixed in place.

[0140] The middle ends of the front and rear sides of the foot plate stretching mechanism rotating rod 97 are rotatably connected to the front and rear ends of the left side of the hole of the fixed hole block 96, and the lower rear end of the foot plate stretching mechanism rotating rod 97 is rotatably connected to the left front end of the sliding rod 94, so that the fixed hole block 96 can restrict the foot plate stretching mechanism rotating rod 97.

[0141] The upper slide rod 98 is rotatably connected to the upper rear end of the foot plate tensioning mechanism rotating rod 97, so that the foot plate tensioning mechanism rotating rod 97 can drive the upper slide rod 98 to move.

[0142] The right side of the upper slide bar spring 99 is fixedly connected to the left end of the right side protrusion of the upper slide bar 98. The left end of the upper slide bar spring 99 is fixedly connected to the upper right end of the foot plate tensioning mechanism compartment 91. The lower right end of the foot plate tensioning mechanism compartment 91 is fixedly connected to the upper left end of the adjusting and fixing mechanism 7, so that the upper slide bar spring 99 can provide elastic support for the upper slide bar 98.

[0143] The adjustment mechanism 74 and the fixing mechanism 75 are provided in two sets. The right inner front and rear ends of the left adjustment mechanism 74 are rotatably connected to the left front and rear ends of the right adjustment mechanism 74. The two sets of fixing mechanisms 75 have the same structure but different sizes. The left fixing mechanism 75 is smaller than the right fixing mechanism 75, so that the adjustment mechanism 74 and the fixing mechanism 75 can better fix patients of different body types and fix the patients firmly.

[0144] This invention provides an improved leg stretching device for orthopedic clinical use, the working principle of which is as follows;

[0145] First, by connecting the orthopedic clinical leg stretching device to an external power source, the necessary electrical energy can be provided to the orthopedic clinical leg stretching device.

[0146] Second, when the patient is seated upright, the controller 4 controls the motor 661 to operate. The motor 661 drives the transmission mechanism 662, which in turn drives the rotating screw 663 to rotate clockwise. Since the rotating screw 663 is threadedly connected to the sliding slide block 664, the rotation of the rotating screw 663 causes the sliding slide block 664 to slide upward on the slide block 665. The sliding of the sliding slide block 664 causes the supporting rotating rod 666 to move upward. The movement of the supporting rotating rod 666 causes the rotating rod connecting block 667 to move upward. The movement of the rotating rod connecting block 667 causes the backrest plate 1 to move upward. The connection point of the fixed connecting block 64 rotates counterclockwise from the center. The rotation of the backrest 1 will cause the rotating rod connecting block 667 to rotate. The rotation of the rotating rod connecting block 667 will cause the supporting rotating rod 666 to rotate and slide to the left on the sliding groove block 664, so that the backrest 1 can rotate 90 degrees, allowing the patient to sit completely upright. The large rotation angle range of the backrest 1 makes it easier for the patient to find the most comfortable position, making it more convenient for the patient to use the orthopedic clinical leg stretching device. This solves the problem that it is difficult to rotate 90 degrees, making it difficult for the patient to sit upright, which makes it inconvenient for the patient to use the orthopedic clinical leg stretching device.

[0147] Third, the patient places their leg between the clamping slider 752 and the clamping fixing block 755, then screws the pin rod 744 clockwise into the screw rod 742, and then rotates it counterclockwise around the screw rod 742. This allows the distance between the right adjusting plate 741 and the left adjusting plate 743 to be adjusted, so that the adjusting mechanism 74 can be adjusted according to the length of the patient's leg, allowing the patient to better receive treatment. Then, by rotating the knob screw 754 clockwise, the rotation of the knob screw 754 will drive the clamping slider 752 to slide inward, so that the clamping slider 752 clamps the patient's thigh and calf, so that the patient can be firmly fixed during treatment, preventing the leg position from shifting during treatment and resulting in poor treatment effect. This solves the problem that it is difficult to adjust according to the length of the patient's leg, making it difficult for the patient to receive better treatment, and that the above device is difficult to clamp the patient's thigh and calf, causing the leg position to shift during treatment and resulting in poor treatment effect.

[0148] Fourth, the controller 4 then controls the knee flexion mechanism motor 812 to operate. The operation of the knee flexion mechanism motor 812 causes the small rotating shaft block 88 to rotate counterclockwise. The rotation of the small rotating shaft block 88 causes the rhomboid arc block 89 to rotate counterclockwise around the connection point between the rhomboid arc block 89 and the small rotating shaft block 88, and to move counterclockwise around the small rotating shaft block 88. The rotation and movement of the rhomboid arc block 89 causes the long rotating rod 86 to move up and down. The up and down movement of the long rotating rod 86 causes the slider 84 to slide up and down on the knee flexion mechanism slide block 85. The up and down movement of the slider 84 causes the rotating rod connecting plate 83 to move up and down. The movement of plate 83 will cause the rotating rod 82 of the knee flexion mechanism to move. The movement of the rotating rod 82 of the knee flexion mechanism will cause the connecting plate 81 of the knee flexion mechanism to move. The movement of the connecting plate 81 of the knee flexion mechanism will push the connection of the two adjustment mechanisms 74 to move up and down. The up and down movement of the connection of the two adjustment mechanisms 74 will cause the two adjustment mechanisms 74 to rotate, so that the patient can perform reciprocating knee flexion movements, so that the patient's legs can be stretched and exercised, so that the patient's rehabilitation time is shortened. This solves the problem that it is difficult for patients to perform reciprocating knee flexion movements, so that the patient's legs cannot be stretched and exercised, so that the patient's rehabilitation time is difficult to shorten.

[0149] Fifth, the small electric push rod 92 is controlled by the controller 4. The operation of the small electric push rod 92 will push the electric push rod connecting block 93 to move left and right back and forth. The movement of the electric push rod connecting block 93 will drive the sliding rod 94 to slide. The sliding rod 94 will cause the sliding rod spring 95 to be repeatedly compressed. When the sliding rod 94 slides to the left, it will drive the foot plate tensioning mechanism rotating rod 97 to rotate clockwise around the connection between the foot plate tensioning mechanism rotating rod 97 and the fixed hole block 96. The rotation of the fixed hole block 96 will push the upper sliding rod 98 to slide to the right. When the sliding rod 94 slides to the right, it will drive the foot plate tensioning mechanism rotating rod 97 to rotate clockwise around the connection between the foot plate tensioning mechanism rotating rod 97 and the fixed hole block 96. The fixed hole block 96 rotates counterclockwise with the connection point as the center. The rotation of the fixed hole block 96 will pull the upper sliding rod 98 to slide to the left. The sliding of the upper sliding rod 98 to the left will compress the upper sliding rod spring 99, so that the lower sliding rod 94 and the upper sliding rod 98 can move back and forth left and right. This allows the lower sliding rod 94 and the upper sliding rod 98 to compress the patient's foot sole, allowing the patient to stretch the calf ligaments and perform a comprehensive leg stretch. This improves the efficiency of the patient's leg stretch and solves the problem that it is difficult to stretch the patient's calf ligaments, making it difficult for the patient to perform a comprehensive leg stretch and reducing the efficiency of the leg stretch.

[0150] This invention provides an improved leg stretching device for orthopedic clinical use. By incorporating a lifting support mechanism 6, the motor 661 within the lifting support mechanism 6 drives the backrest panel 1 to rotate, allowing it to rotate 90 degrees, enabling the patient to sit fully upright. The wide rotation angle range of the backrest panel 1 makes it easier for the patient to find the most comfortable position, thus making the orthopedic leg stretching device more convenient for use. Furthermore, by incorporating an adjustment and fixing mechanism 7, the rotation of the screw 742 in the adjustment and fixing mechanism 7 increases the distance between the right adjustment plate 741 and the left adjustment plate 743, allowing the adjustment mechanism 74 to be adjusted according to the length of the patient's leg, thus improving the patient's treatment comfort. The rotation of the knob screw 754 in the adjustment and fixing mechanism 7 causes the clamping slider 752 and the clamping fixation mechanism to... Block 755 clamps the patient's thigh and calf, firmly fixing the patient during treatment and preventing leg displacement that could lead to poor treatment results. A knee flexion mechanism 8 is included; its motor 812 drives the connection between the two adjustment mechanisms 74 to move up and down and rotate, allowing the patient to perform reciprocating knee flexion movements. This stretches the patient's legs and shortens recovery time. A foot stretching mechanism 9 is also included; its small electric push rod 92 drives the sliding rod 94 and upper sliding rod 98 to compress the patient's foot, stretching the calf ligaments and providing comprehensive leg stretching, thus improving the efficiency of leg stretching.

[0151] The above description shows and illustrates the basic principles, main features, and advantages of the present invention. Standard parts used in the present invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0152] The above description of the disclosed embodiments enables those skilled in the art to make or use the 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 invention. Therefore, the 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. A leg stretching device for clinical use in orthopedics, comprising a backrest (1), a headrest block fixing block (2) installed at the middle of the right side of the backrest (1), a headrest block (3) installed at the middle of the top of the headrest block fixing block (2), a controller (4) installed at the front of the top of the headrest block fixing block (2), and handles (5) installed at the middle of the front and rear sides of the top of the backrest (1). Its features are: Also includes: A lifting support mechanism (6) is fixedly connected at the top middle end to the bottom middle end of the backrest plate (1); Adjusting and fixing mechanism (7), the front and rear ends of the upper right side of the adjusting and fixing mechanism (7) are rotatably connected to the front and rear ends of the upper left side of the lifting support mechanism (6); The knee flexion mechanism (8) is fixedly connected to the lower rear end of the adjustment and fixing mechanism (7). A footplate stretching mechanism (9) is provided, wherein the lower right end of the footplate stretching mechanism (9) is fixedly connected to the upper left and rear ends of the adjusting and fixing mechanism (7); the adjusting and fixing mechanism (7) includes: Slide cylinder (71), the slide cylinder (71) is located at the lower right end of the adjusting and fixing mechanism (7); The right end of the outer surface of the slide rod (72) is slidably connected to the inner surface of the slide cylinder (71); The lower right end of the left support column (73) is fixedly connected to the left end of the slide rod (72); Adjustment mechanism (74), the front and rear ends of the right inner side of the adjustment mechanism (74) are rotatably connected to the front and rear ends of the left upper end of the lifting support mechanism (6); A fixing mechanism (75) is fixedly connected at the bottom middle end to the top right middle end of the adjusting mechanism (74); The right end of the slide cylinder (71) is fixedly connected to the front and rear sides of the lower left side of the lifting support mechanism (6); The adjustment mechanism (74) includes: A right adjusting plate (741) is disposed at the right end of the adjusting mechanism (74); The screw (742) has its right end passing through the front and rear ends of the left side of the right adjusting plate (741) and is threadedly connected to the front and rear ends of the left side of the right adjusting plate (741); The left adjusting plate (743) has its front and rear ends on the right side penetrated by the left end of the screw (742) and threadedly connected to the left end of the screw (742); A pin screw rod (744) has its upper end passing through the middle of the bottom of the screw rod (742) and threadedly connected to the middle of the bottom of the screw rod (742); The right inner side of the right adjustment plate (741) is rotatably connected to the front and rear ends of the upper left side of the lifting support mechanism (6); The knee flexion mechanism (8) includes: A knee flexion mechanism connecting plate (81) is provided on the upper front side of the knee flexion mechanism (8); The upper rear end of the knee flexion mechanism rotating rod (82) is rotatably connected to the middle front and rear ends of the knee flexion mechanism connecting plate (81); Rotary rod connecting plate (83), the top left and right ends of the rotary rod connecting plate (83) are fixedly connected to the bottom of the rotating rod (82) of the knee bending movement mechanism; The top of the upper front protrusion of the slider (84) is fixedly connected to the middle bottom of the rotating rod connecting plate (83); The sliding block (85) of the knee flexion mechanism has its front inner surface slidably connected to the left and right sides of the slider (84). A long rotating rod (86) is rotatably connected to the upper rear end of the slider (84) at the middle front end. The knee flexion mechanism (8) also includes: The top left side of the irregular connecting plate (87) is fixedly connected to the bottom of the sliding block (85) of the knee bending movement mechanism; Small rotating shaft block (88), the upper right rear end of the small rotating shaft block (88) is rotatably connected to the front and rear middle ends of the irregular connecting plate (87); A rhomboid arc block (89) is rotatably connected at the middle rear side of the rhomboid arc block (89) to the lower left front side of the small rotating shaft block (88), and the lower left front side of the rhomboid arc block (89) is rotatably connected to the lower rear side of the long rotating rod (86). The short rotating rod (810) is rotatably connected to the upper right front end of the rhomboid arc block (89) at its lower rear end and to the upper right front end of the irregular connecting plate (87) at its upper rear end. Motor fixing plate (811), the front side of the motor fixing plate (811) is fixedly connected to the middle rear side of the irregular connecting plate (87) and the upper rear side of the irregular connecting plate (87), and the rear side of the motor fixing plate (811) is fixedly connected to the middle left end of the inner rear end of the slide cylinder (71). The knee flexion mechanism motor (812) is fixedly connected to the front end of the inner side of the motor fixing plate (811) on both the upper and lower sides. The front end of the output shaft of the knee flexion mechanism motor (812) is fixedly connected to the upper right end of the rear side of the small rotating shaft block (88). The top of the knee flexion mechanism connecting plate (81) is fixedly connected to the bottom middle of the adjustment mechanism (74).

2. The orthopedic clinical leg stretching device according to claim 1, characterized in that: The lifting support mechanism (6) includes: Right side support column (61), the right side support column (61) is located on the right side of the lifting support mechanism (6); Support plate (62), the front and rear ends of the right side of the support plate (62) are fixedly connected to the lower left end of the right support column (61); A fixed support column (63) is fixedly connected to the lower right side of the support plate (62) at both the front and rear ends on the left side. Fixed connecting block (64), the bottom left end of the fixed connecting block (64) is fixedly connected to the top of the fixed support column (63), and the front and rear ends of the right inner side of the fixed connecting block (64) are rotatably connected to the front and rear ends of the left side of the backrest plate (1); A partition plate (65) is fixedly connected at its bottom to the right side of the top of the support plate (62); A lifting mechanism (66) is fixedly connected at its bottom left side to the top left side of the support plate (62); The top surface of the right support column (61) is in contact with the bottom right contact surface of the backrest (1), and the top of the partition plate (65) is fixedly connected to the bottom right side of the backrest (1).

3. The orthopedic clinical leg stretching device according to claim 2, characterized in that: The lifting mechanism (66) includes: A motor (661) is located on the right side of the lifting mechanism (66); The transmission mechanism (662) is connected to the lower end of the motor (661) by the lower end of the output shaft of the motor (661) through the top right side of the transmission mechanism (662); Rotate the screw rod (663), the lower end of which passes through the upper and lower left ends of the support plate (62) and is rotatably connected to the upper and lower left ends of the support plate (62). The bottom of the screw rod (663) is fixedly connected to the top left side of the transmission mechanism (662). The sliding slide block (664) has its upper and lower left ends penetrated by the lower end of the rotating screw rod (663) and threadedly connected to the lower end of the rotating screw rod (663); The bottom of the slide block (665) is fixedly connected to the bottom left side of the support plate (62), the top of the slide block (665) is fixedly connected to the bottom right side of the fixed connecting block (64), and the inner surface of the right slide block (665) is slidably connected to the left end of the outer surface of the sliding slide block (664). A support rotating rod (666) is provided, the lower end of the outer surface of the support rotating rod (666) being slidably connected to the inner surface of the top groove of the sliding groove block (664); Rotary rod connecting block (667), the middle front end of the rotating rod connecting block (667) is rotatably connected to the upper rear end of the supporting rotating rod (666), and the upper end of the rotating rod connecting block (667) passes through the middle left side of the bottom of the backrest (1) and is fixedly connected to the middle left side of the bottom of the backrest (1); The lower end of the motor (661) is fixedly connected to the top right side of the support plate (62), and the upper end of the lower output shaft of the motor (661) passes through the upper and lower right ends of the support plate (62) and is rotatably connected to the upper and lower right ends of the support plate (62).

4. The orthopedic clinical leg stretching device according to claim 1, characterized in that: The fixing mechanism (75) includes: Limiting strip (751), the limiting strip (751) is disposed on the front and rear sides and left and right ends of the fixing mechanism (75); The clamping slider (752) has its lower ends on both sides slidably connected to the inner surface of the limiting strip (751); A vertical connecting plate (753) is fixedly connected at its lower rear end to the middle of the front and rear sides of the right adjusting plate (741). A knob screw (754) has its middle end passing through the upper ends of the front and rear sides of the vertical connecting plate (753) and is threadedly connected to the upper ends of the front and rear sides of the vertical connecting plate (753). A clamping and fixing block (755) is fixedly connected at its bottom to the top middle of the right adjusting plate (741); The bottom of the limiting strip (751) is fixedly connected to the front and rear sides and the left and right ends of the top of the right adjusting plate (741).

5. The orthopedic clinical leg stretching device according to claim 1, characterized in that: The footplate stretching mechanism (9) includes: Foot plate stretching mechanism compartment (91), the foot plate stretching mechanism compartment (91) is disposed outside the foot plate stretching mechanism (9); A small electric push rod (92) is fixedly connected at its bottom to the left side of the bottom of the foot plate stretching mechanism compartment (91). Electric push rod connecting block (93), the bottom of which is fixedly connected to the top right side of the small electric push rod (92); The bottom left end of the sliding rod (94) is fixedly connected to the top of the electric push rod connecting block (93); The right side of the sliding rod spring (95) is fixedly connected to the left end of the right side protrusion of the sliding rod (94), and the left end of the sliding rod spring (95) is fixedly connected to the lower right end of the foot plate stretching mechanism compartment (91). A fixing hole block (96) is fixedly connected to the middle right side of the foot plate stretching mechanism compartment (91); The foot plate stretching mechanism rotating rod (97) has its front and rear sides middle ends rotatably connected to the front and rear ends of the left side of the hole of the fixed hole block (96), and the rear lower end of the foot plate stretching mechanism rotating rod (97) is rotatably connected to the front left end of the sliding rod (94). The upper slide rod (98) is rotatably connected to the upper rear end of the foot plate stretching mechanism rotating rod (97); The upper slide spring (99) is fixedly connected to the left end of the right protrusion of the upper slide (98) on the right side, and the left end of the upper slide spring (99) is fixedly connected to the upper right end of the foot plate stretching mechanism compartment (91); The lower right end of the foot plate stretching mechanism compartment (91) is fixedly connected to the upper left end of the adjustment and fixing mechanism (7).

6. The leg stretching device for clinical orthopedic use according to claim 1, characterized in that: The adjustment mechanism (74) and the fixing mechanism (75) are provided in two sets. The front and rear ends of the right inner side of the adjustment mechanism (74) on the left side are rotatably connected to the front and rear ends of the left side of the adjustment mechanism (74) on the right side. The two sets of fixing mechanisms (75) have the same structure but different sizes. The fixing mechanism (75) on the left side is smaller than the fixing mechanism (75) on the right side.

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