A device for power-assisted adjustment of the lower limb force line

Abstract

The present invention discloses a device for power-assisted adjustment of the lower limb force line, which is characterized by comprising: a shoe body, a first correction side plate, a second correction side plate, a restraint belt, and a transmission module; the first correction side plate and the second correction side plate are respectively movably connected to both sides of the shoe body, the first correction side plate and the second correction side plate extend to the human knee joint, the restraint belt is fixedly placed outside the first correction side plate and the second correction side plate, and binds the first correction side plate and the second correction side plate to the human leg, the transmission module is fixedly connected to the bottom of the shoe body, and the bottoms of the first correction side plate and the second correction side plate are respectively movably connected to both ends of the transmission module, and a pressure sensor is provided at the heel part of the shoe body; the overall design adopts a lever form to correct or prevent knee valgus or varus in teenagers, fundamentally correct or prevent knee varus or valgus, improve their own postures, balance the joint force, and maintain human health.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and particularly relates to a device for power-assisted adjustment of the lower limb force line. Background Art

[0002] The lower limb force line is the axis of the lower limb force, the axis of the lower limb mechanism, and is the axis passing through the center of the hip joint, the center of the knee joint, and the center of the ankle joint. Since the distance between the two hips is wider than that between the two ankles, the axis of the lower limb mechanism slopes downward and inward, forming an angle of about 3° with the vertical axis. The wider the inter-acetabular width, the larger this angle, and this angle is larger in women than in men. Therefore, the physiological valgus of the knee in women is more obvious than that in men.

[0003] Generally, genu valgum is also called X-shaped legs, and genu varum is also called O-shaped legs. For X-shaped legs, when the two feet are together, the two knee joints touch each other, but the two inner ankles cannot be close together; for O-shaped legs, when the two lower limbs are naturally straight or standing, the two inner ankles can touch each other while the two knees cannot be close together. In a normal knee joint, the pressure is evenly distributed on the joint surface. However, for people with X-shaped legs or O-shaped legs, due to the valgus or varus of the knee joint, the body weight is excessively concentrated on the outer or inner joint surface of the knee joint, resulting in poor lower limb force line, increased friction between the patella and the femur, and easy softening of the patella. Excessive pressure and friction will cause wear of the outer cartilage surface of the knee joint, collapse of the tibial plateau, and secondary osteoarthritis. When getting older, it is easy to have joint pain, affecting normal walking activities.

[0004] There are various main reasons for causing X-shaped legs or O-shaped legs. One is rickets in children, one is congenital inheritance, and in addition, a small part is sequelae caused by cartilage dysplasia, trauma, fracture, etc. This kind of leg deformity not only affects the shape and beauty, but also has a greater impact on human health, and needs to be corrected or prevented in time, especially during adolescence; correcting and restoring to normal can not only improve the beauty of the body shape, but also improve the state of unbalanced knee joint stress. However, at present, there are the following deficiencies in the correction and prevention of knee valgus or varus in adolescents:

[0005] In the prior art, there are many devices applied to prevent and correct knee varus or valgus, but most of these devices can only provide a certain torque at the knee joint, and cannot adjust the lower limb force line as a whole, treating the symptoms rather than the root cause, and cannot fundamentally solve the harm caused by knee varus and valgus; at the same time, such devices in the prior art cannot accurately and real-time feedback the state of the patient's knee joint and provide corresponding correction torques, resulting in poor correction and prevention effects. Summary of the Invention

[0006] To solve the above technical problems, the present invention designs a device for power-assisted adjustment of the lower limb force line. By adjusting the lower limb force line of patients (mostly teenagers), this device corrects or prevents knee valgus or varus in teenagers. It adopts a lever design form as a whole. A lever-like correction side plate for providing a correction moment is designed at the ankle joint of the patient and extends to the knee joint of the patient. The two joints that have the greatest impact on the adjustment of the lower limb force line of the human body are externally corrected, so that the knee joints can be on the same straight line, achieving the effect of assisting in adjusting the lower limb force line, fundamentally correcting or preventing knee varus or valgus, improving the patient's own posture, making the joint force balanced, and maintaining human health. Compared with other devices in the prior art, this device starts from the root cause, can better restore the joint force balance, and has a better correction or prevention effect. At the same time, the device is provided with pressure sensors on both the left and right sides of the patient's heel, which can collect the pressure conditions of the patient's heel in real time. If the pressure on one side is greater than that on the other side, the system judges that the knee joint of the human body has varus or valgus, and controls the correction side plate to apply a corrective force. The greater the difference in pressure detection, the greater the degree of knee varus or valgus, and the greater the pressure applied by the corresponding correction side plate. In this way, the device can always detect the state of the human knee joint and make corresponding adjustment actions. Compared with other existing technologies in this field, it has stronger adjustment timeliness, can always adjust and correct in a timely manner, making it easier to adjust the knee joint state and achieving a better adjustment effect.

[0007] To achieve the above technical effects, the present invention is realized through the following technical solutions: A device for power-assisted adjustment of the lower limb force line, characterized by comprising: a shoe body, a first correction side plate, a second correction side plate, a restraint belt, and a transmission module;

[0008] The first correction side plate and the second correction side plate are respectively movably connected to both sides of the shoe body. The first correction side plate and the second correction side plate extend to the knee joint of the human body. The restraint belt is fixedly placed outside the first correction side plate and the second correction side plate, binding the first correction side plate and the second correction side plate to the human leg. The transmission module is fixedly connected to the bottom of the shoe body. The bottoms of the first correction side plate and the second correction side plate are respectively movably connected to both ends of the transmission module. A pressure sensor is provided at the heel part of the shoe body;

[0009] Further, the shoe body is divided into a sole, a fixing belt fixedly connected to the upper surface of the sole, and a heel fixing block. A binding strap is fixedly provided on the heel fixing block. Rectangular grooves are opened on both sides of the heel fixing block, and connecting lugs are fixedly provided on both sides of the rectangular grooves;

[0010] Further, there are two pressure sensors, which are respectively fixedly arranged on both upper sides of the upper part of the heel of the sole of the shoe body;

[0011] Further, a central processing unit and a storage battery are also fixedly arranged inside the sole;

[0012] Further, the transmission module is fixedly connected to the lower part of the heel of the sole of the shoe body, below the sensor. The transmission module includes four parts: a fixed guide rail, a stepping motor, a transmission rack, and an end link. The fixed guide rail and the stepping motor are fixedly connected to the sole. The transmission rack is slidably connected to the fixed guide rail. The stepping motor is fixedly provided with a transmission gear, and the transmission gear meshes with the transmission rack. The end link is divided into two, and one end of it is hingedly connected to both ends of the transmission rack. The end link penetrates through both sides of the shoe body and is movably connected to the first correction side plate and the second correction side plate;

[0013] Further, a connecting sphere is fixedly arranged at the head end of the end link and is movably connected to the tail ends of the first correction side plate and the second correction side plate;

[0014] Further, a spherical groove is formed at the tail end of the first correction side plate, and a hinge round hole is formed above the spherical groove. An electronic display screen is fixedly arranged on the outer side of the first correction side plate;

[0015] Further, the second correction side plate is a mirror image of the first correction side plate with exactly the same structural shape. The first correction side plate and the second correction side plate are universally movably connected to the head end of the end link of the transmission module at the spherical groove and are hingedly connected to the connecting lugs on the shoe body at the hinge round holes;

[0016] Another object of the present invention is to provide a method for using a device for power-assisted adjustment of the lower limb force line:

[0017] 1. Wear the device on the patient's leg.

[0018] 2. Fix the shoe body through the strap, and fix the first correction side plate and the second correction side plate on the human leg through the restraint strap.

[0019] 3. Start the device.

[0020] 4. Observe the heel pressure on the electronic display screens of the first correction side plate and the second correction side plate.

[0021] The beneficial effects of the present invention are:

[0022] 1. The device adjusts the lower limb force line of patients (mostly teenagers) to correct or prevent knee valgus or varus in teenagers. It adopts a lever design form as a whole. A lever - type correction side plate for providing a correction moment is designed at the patient's ankle joint and extends to the patient's knee joint. The two joints that have the greatest impact on the adjustment of the human lower limb force line are externally corrected, so that the knees can be in a straight line, achieving the effect of assisting in adjusting the lower limb force line, fundamentally correcting or preventing knee varus or valgus, improving the patient's own posture, making the joint force balanced, and maintaining human health. Compared with other devices in the prior art, this device starts from the root cause, can better restore the joint force balance, and has a better correction or prevention effect.

[0023] 2. The device is provided with pressure sensors on both the left and right sides of the patient's heel. It can collect the pressure conditions of the patient's heel in real - time. If the pressure on one side is greater than that on the other side, the system immediately judges that the human knee has varus or valgus, and controls the correction side plate to apply a corrective force. The greater the difference in pressure detection, the greater the degree of knee varus or valgus, and the greater the pressure applied by the corresponding correction side plate. In this way, the device can always detect the state of the human knee joint and make corresponding adjustment actions. Compared with other existing technologies in this field, it has stronger adjustment timeliness, can always adjust and correct in a timely manner, making it easier to adjust the knee joint state and achieving a better adjustment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a schematic diagram of the overall structure of a device for power - assisted adjustment of the lower limb force line;

[0026] Figure 2 It is a side view of a device for power - assisted adjustment of the lower limb force line;

[0027] Figure 3 It is a schematic diagram of the internal structure of a device for power - assisted adjustment of the lower limb force line;

[0028] Figure 4 It is a schematic diagram of the shoe body and its accessory structure of a device for power - assisted adjustment of the lower limb force line;

[0029] Figure 5 It is a schematic diagram of the internal structure of the sole of the shoe body of a device for power - assisted adjustment of the lower limb force line;

[0030] Figure 6 Schematic diagram of the first correction side plate structure of a device for power-assisted adjustment of lower limb alignment

[0031] Figure 7 Schematic diagram of the transmission module and its accessory structure of a device for power-assisted adjustment of lower limb alignment

[0032] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0033] 1 - shoe body, 101 - sole, 102 - fixing strap, 103 - heel fixing block, 104 - lacing, 105 - rectangular groove, 106 - connecting lug, 107 - central processing unit, 108 - storage battery, 109 - pressure sensor, 2 - first correction side plate, 201 - spherical groove, 202 - hinge round hole, 203 - electronic display screen, 3 - second correction side plate, 4 - restraint strap, 5 - transmission module, 501 - fixed guide rail, 502 - stepper motor, 503 - transmission rack, 504 - end connecting rod, 505 - transmission gear, 506 - connecting sphere. Detailed implementation manners

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment

[0036] Refer to Figures 1 to 7 As shown, a device for power-assisted adjustment of lower limb alignment, characterized by comprising: a shoe body 1, a first correction side plate 2, a second correction side plate 3, a restraint strap 4, and a transmission module 5;

[0037] The first correction side plate 2 and the second correction side plate 3 are respectively movably connected to both sides of the shoe body 1. The first correction side plate 2 and the second correction side plate 3 extend to the human knee joint. The restraint belt 4 is fixedly arranged on the outer sides of the first correction side plate 2 and the second correction side plate 3 to bind the first correction side plate 2 and the second correction side plate 3 to the human leg. The transmission module 5 is fixedly connected to the bottom of the shoe body 1. The bottoms of the first correction side plate 2 and the second correction side plate 3 are respectively movably connected to both ends of the transmission module 5. A pressure sensor 109 is provided at the heel part of the shoe body 3. The whole device provides a correction torque through the first correction side plate 2 and the second correction side plate 3, starting from the ankle joint and ending at the knee joint, so that the knee joints can be in the same straight line, so as to achieve the effect of assisting in adjusting the lower limb force line, fundamentally correcting or preventing knee varus or valgus, improving its own posture, making the joint force balanced, and maintaining human health. Compared with other devices in the prior art, this device starts from the root cause, can better restore the joint force balance, and has a better correction or prevention effect.

[0038] The shoe body 1 is divided into a shoe sole 101, a fixing belt 102 fixedly connected to the upper surface of the shoe sole 101, and a heel fixing block 103. The heel fixing block 103 is fixedly provided with a binding strap 104. Rectangular grooves 105 are formed on both sides of the heel fixing block 103, and connecting lugs 106 are fixedly provided on both sides of the rectangular grooves 105.

[0039] There are two pressure sensors 109, which are respectively fixedly arranged on both sides of the upper part of the heel of the shoe sole 101 of the shoe body 1, respectively detecting the pressures on both sides of the human heel, and analyzing whether the knee joint is varus or valgus through the pressure.

[0040] A central processing unit 107 and a storage battery 108 are also fixedly arranged in the shoe sole 101.

[0041] The transmission module 5 is fixedly connected to the lower part of the heel of the sole 101 of the shoe body 1, below the pressure sensor 109. The transmission module 5 includes four parts: a fixed guide rail 501, a stepping motor 502, a transmission rack 503, and an end link 504. The fixed guide rail 501 and the stepping motor 502 are fixedly connected to the sole 101. The transmission rack 503 is slidably connected to the fixed guide rail 501. The stepping motor 502 is fixedly provided with a transmission gear 505, and the transmission gear 505 meshes with the transmission rack 503. There are two end links 504, one end of which is hingedly connected to both ends of the transmission rack 503. The end links 504 penetrate both sides of the shoe body 1 and are movably connected to the first correction side plate 2 and the second correction side plate 3. The entire transmission module 5 provides a torque for left - right displacement through the stepping motor 502. That is, the stepping motor 502 drives the transmission gear 505. Because the transmission gear 505 meshes with the transmission rack 503, the rotational motion of the transmission gear 505 will ultimately evolve into the horizontal motion of the transmission rack 503. The transmission rack 503 drives the end link 504 to move horizontally, and then the end link 504 drives the tails of the first correction side plate 2 and the second correction side plate 3 to move, causing the first correction side plate 2 and the second correction side plate 3 to rotate along their hinged connection positions, so as to finally adjust the left - right swing amplitude of the first correction side plate 2 and the second correction side plate 3, and provide a correction torque for the knee joint of the human body;

[0042] A connecting sphere 506 is fixedly provided at the head end of the end link 504 and is movably connected to the tails of the first correction side plate 2 and the second correction side plate 3;

[0043] A spherical groove 201 is opened at the tail end of the first correction side plate 2, and a hinge round hole 202 is opened above the spherical groove 201. An electronic display screen 203 is fixedly provided on the outer side of the first correction side plate 2;

[0044] The second correction side plate 3 is a mirror image of the first correction side plate 2 with exactly the same structural shape. The first correction side plate 2 and the second correction side plate 3 are universally movably connected to the head end of the end link 504 of the transmission module 5 at the spherical groove 201, and are hingedly connected to the connecting lug 106 on the shoe body 1 at the hinge round hole 202;

[0045] The working principle of this device is as follows:

[0046] First, all the electrical components of the device are controlled by the central processing unit 107. During actual use, the two pressure sensors 109 respectively collect the pressures on both sides of the human heel, and send the pressure information to the central processing unit 107 for processing and analysis. If the pressures detected by the two pressure sensors 109 are within a standard difference, it is determined that the knee joint is normal; if the pressure detected by the inner pressure sensor 109 is significantly greater than the pressure detected by the outer pressure sensor 109, it is determined that the knee joint is valgus. The central processing unit 107 controls the end link 504 of the transmission module 5 to move inward as a whole, that is, drives the first correction side plate 2 and the second correction side plate 3 to turn outward. The greater the pressure difference, the greater the torque provided by the central processing unit 107 to control the transmission module 5; if the pressure detected by the inner pressure sensor 109 is significantly less than the pressure detected by the outer pressure sensor 109, it is determined that the knee joint is varus. The central processing unit 107 controls the end link 504 of the transmission module 5 to move outward as a whole, that is, drives the first correction side plate 2 and the second correction side plate 3 to turn inward. The greater the pressure difference, the greater the torque provided by the central processing unit 107 to control the transmission module 5; at the same time, the pressure information on both sides of the heel can be obtained in real time through the electronic display screen.

[0047] Specific usage method and steps of the device:

[0048] 1. Wear the device on the patient's leg.

[0049] 2. Fix the shoe body through the strap, and fix the first correction side plate and the second correction side plate on the human leg through the restraint strap.

[0050] 3. Start the device.

[0051] 4. Observe the heel pressure on the electronic display screens of the first correction side plate and the second correction side plate.

[0052] To sum up, 1. The device adjusts the lower limb force line of the patient (mostly teenagers) to correct or prevent knee joint valgus or varus in teenagers. The overall design form is a lever. A lever-type correction side plate for providing a correction torque is designed at the patient's ankle joint and extends to the patient's knee joint. The two joints that have the greatest impact on the adjustment of the human lower limb force line are externally corrected, so that the knee joints can be on the same straight line, so as to achieve the effect of assisting in adjusting the lower limb force line, fundamentally correcting or preventing knee joint varus or valgus, improving the patient's own posture, making the joint force balanced, and maintaining human health. Compared with other devices in the prior art, the device starts from the root cause, can better restore the joint force balance, and has a better correction or prevention effect;

[0053] 2. The device is provided with pressure sensors on the left and right sides of the patient's heel to collect the pressure conditions of the patient's heel in real time. When the pressure on one side is greater than that on the other side, the system determines that the human knee joint has varus or valgus conditions and controls the correction side plate to apply a corrective force. The greater the difference in pressure detection, the greater the degree of varus or valgus of the knee joint, and the greater the pressure applied by the corresponding correction side plate. In this way, the device can continuously detect the state of the human knee joint and make corresponding adjustment actions. Compared with other existing technologies in this field, it has stronger adjustment timeliness, can adjust and correct in a timely manner at all times, making it easier to adjust the knee joint state and achieving better adjustment effects.

[0054] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0055] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not elaborate on all details and do not limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A device for power-assisted adjustment of lower limb force line, characterized in that, it includes: a shoe body, a first correction side plate, a second correction side plate, a restraint strap, and a transmission module; The first correction side plate and the second correction side plate are respectively movably connected to both sides of the shoe body. The first correction side plate and the second correction side plate extend to the human knee joint. The restraint strap is fixedly placed outside the first correction side plate and the second correction side plate to bind the first correction side plate and the second correction side plate to the human leg. The transmission module is fixedly connected to the bottom of the shoe body. The bottoms of the first correction side plate and the second correction side plate are respectively movably connected to both ends of the transmission module. A pressure sensor is provided at the heel part of the shoe body; The shoe body is divided into a sole, a fixed strap fixedly connected to the upper surface of the sole, and a heel fixing block. A binding strap is fixedly provided on the heel fixing block. Rectangular grooves are opened on both sides of the heel fixing block, and connecting lugs are fixedly provided on both sides of the rectangular groove; The transmission module is fixedly connected to the lower part of the heel of the sole of the shoe body, below the pressure sensor. The transmission module includes a fixed guide rail, a stepper motor, a transmission rack, and two end link rods. The fixed guide rail and the stepper motor are fixedly connected to the sole. The transmission rack is slidably connected to the fixed guide rail. The stepper motor is fixedly provided with a transmission gear, and the transmission gear meshes with the transmission rack. The two end link rods are respectively arranged on both sides of the transmission rack. One end of each end link rod is hinged to one side of the transmission rack, and the other end passes through the shoe body and is movably connected to the first correction side plate or the second correction side plate; A spherical groove is opened at the tail end of the first correction side plate, and a hinge round hole is opened above the spherical groove. The second correction side plate is a mirror image of the first correction side plate with exactly the same structural shape as the first correction side plate. The first correction side plate and the second correction side plate are universally movably connected to the end link rod at the spherical groove and are hinged to the connecting lug on the shoe body at the hinge round hole; The entire transmission module provides a torque for left and right displacement through the stepper motor, that is, the stepper motor drives the transmission gear. Because the transmission gear meshes with the transmission rack, the rotational movement of the transmission gear will ultimately evolve into the horizontal movement of the transmission rack. The transmission rack drives the end link rod to move horizontally, and then the end link rod drives the tail ends of the first correction side plate and the second correction side plate to move, so that the first correction side plate and the second correction side plate rotate along their hinge positions to finally adjust the left and right swing amplitudes of the first correction side plate and the second correction side plate, providing a correction torque for the human knee joint; There are two pressure sensors, which are respectively fixedly arranged on both upper sides of the heel of the sole of the shoe body.

2. The device for power-assisted adjustment of lower limb force line according to claim 1, characterized in that, a central processor and a storage battery are also fixedly provided in the sole.

3. The device for power-assisted adjustment of lower limb force line according to claim 1, characterized in that, a connecting sphere is fixedly provided at the head end of the end link rod and is movably connected to the tail ends of the first correction side plate and the second correction side plate.

4. The device for power-assisted adjustment of lower limb force line according to claim 1, characterized in that, An electronic display screen is fixedly arranged on the outer side of the first correction side plate.

5. The device for power-assisted adjustment of lower limb force line according to any one of claims 1 to 4 discloses the application of a device for power-assisted adjustment of lower limb force line in the fields of correction of knee varus, correction of knee valgus, prevention of knee varus, or prevention of knee valgus.

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