82 results about "Foot movements" patented technology

The invention relates to the field of gait analysis, and discloses a gait analysis method and system based on intelligent shoes, and the method comprises the steps: obtaining pressure distribution data captured by a plantar pressure sensor, dividing gait stages according to a pressure mode, and recognizing gait phases; the method comprises the following steps: acquiring three-dimensional acceleration, angular velocity and magnetic field data of an inertial measurement unit, and converting the three-dimensional acceleration data from an IMU coordinate system to an earth coordinate system; performing integral calculation on the three-dimensional acceleration data based on the earth coordinate system to obtain speed data; describing the time stage of the gait through the pressure mode of the pressure distribution data, detecting to obtain a zero speed moment, correcting the speed data by applying a zero speed updating algorithm according to the zero speed moment to obtain the corrected speed data, and further performing integral calculation to obtain the motion trail of the foot; through a principal component analysis algorithm, decoupling the displacement in the step length direction and the step width direction in the foot motion trail so as to obtain step length and step width parameters; the plantar pressure distribution data cloud picture and the foot movement track are combined and visualized, visual reproduction of the foot posture in the gait process is completed, and a convenient mode is provided for a patient to monitor and evaluate the gait health condition of the patient.

The invention provides a foldable lower limb rehabilitation wheelchair which comprises a wheelchair mechanism, a rehabilitation mechanism and a folding mechanism, the wheelchair mechanism can achieve a daily walking replacing function, the rehabilitation mechanism comprises leg rehabilitation assemblies and a pedal assembly, the leg rehabilitation assemblies are arranged on the two sides of the wheelchair mechanism respectively, and the pedal assembly is connected to one end of each leg rehabilitation assembly. The rehabilitation mechanism is arranged between the two sets of leg rehabilitation assemblies, the leg rehabilitation assemblies can assist in achieving leg movement, the pedal assembly can assist in achieving foot movement, therefore, comprehensive exercise can be conducted on the lower limbs, and when exercise is not conducted, the rehabilitation mechanism can serve as a pedal part of a wheelchair to provide support for the lower limbs of a patient; the folding mechanism is arranged below the rehabilitation mechanism, is connected with the rehabilitation mechanism when unfolded to jointly achieve movement of the pedal assembly, and can be stored below the wheelchair mechanism when folded without occupying space.

A foot training exercise device comprises a machine box, two parallel guide rails are fixedly connected to the machine box, sliding blocks are arranged on the guide rails in a matched mode, a first support is fixedly connected to the sliding blocks, an inner ring of a first rod end knuckle bearing is connected to the first support through a shaft, and the rod end of the first knuckle bearing is fixedly connected to one end of a spring. The rod end of the second rod end knuckle bearing is fixedly connected to the other end of the spring, the inner ring of the second rod end knuckle bearing is connected to the second support through a shaft, the second support is fixedly connected to one end of the cross beam type weighing sensor, and the other end of the cross beam type weighing sensor is fixedly connected to the case. The length direction of the spring and the length direction of the guide rail are defined to be the horizontal direction, a mounting block in the vertical direction is fixedly connected to the sliding block, a pedal base is fixedly connected to the mounting block, a pedal plate is rotationally connected to the pedal base through a shaft, and a foot binding belt is fixedly connected to the pedal plate. The exercise device can detect the exercise strength of the feet.

The invention relates to the technical field of medical instruments, and discloses a great saphenous vein postoperative bed foot movement device which comprises a support, an auxiliary mechanism and a monitoring device are arranged on the support, the monitoring device comprises a control system, a camera shooting module and an alarm, and the camera shooting module comprises a shooting unit and a recording unit. The shooting unit shoots a high-definition initial picture of a toe and sends the initial picture to the control system for storage, and the control system controls the recording unit to be in a recording state after receiving the initial picture; when the recording unit monitors that the color of the toes of the patient changes, a signal is sent to the control system, and the control system controls the shooting unit to shoot a toe picture after receiving the signal, compares and analyzes the initial picture, judges whether the initial picture is abnormal or not, and outputs a result. The technical problem that in the prior art, the affected limb cannot be monitored timely and effectively after an operation can be solved.

Multi-layered socks with elastomeric padding in accordance with embodiments of the invention are disclosed. In one embodiment, a sock for reducing foot movement is provided, the sock including: a toe region connected to a mid-foot region, connected to a heel region, further connected to an ankle region, the ankle region including an opening; a sole positioned from the toe region through the mid-foot region to the heel region, the sole comprising an inner layer, a middle layer, and an outer layer; the middle layer being attached to the inner layer and encapsulated between the inner layer and the outer layer; the middle layer of the sole varies in thickness; a thickness of the middle layer of the sole is greater in the heel region and the toe region; and the sock forms a hollow tubular shape that is closed at the toe region and open at the ankle region.

The invention discloses a pair of children's shoes and a preparation method thereof, and relates to the field of children's shoes, each of the children's shoes comprises an upper, a sole, a toe cap protection structure and a detachable orthotic insole, the upper is formed by sewing a breathable antibacterial composite fabric; scientific foot protection is achieved through multi-dimensional structure optimization, the 1 / 3 bending structure of the shoe sole accurately corresponds to the first-fifth metatarsophalangeal joint position of the foot, the 15-degree upwarp design and the 3-5 mm sunken structure accord with the foot movement track of a child during walking, running and jumping, the space in the shoe is increased, joint stress damage is reduced, the correction shoe pad is provided with supporting pads aiming at the transverse arch of the forefoot and the longitudinal arch of the inner side and the longitudinal arch of the outer side respectively, and therefore the correction effect is achieved. By the aid of pressure sinking convex-concave grooves in metatarsophalangeal joints and toe joints, plantar pressure can be dispersed, a normal physiological curve of an arch can be maintained, foot development deformity such as flatfoot, strephenopodia or valgus can be effectively prevented, and meanwhile, the surrounding heel cup with the height of 12 mm and the inner side heel cup cooperatively fix the heel to guarantee that the foot keeps a correct force line during movement.

The invention relates to medicine, and more particularly to a novel method for the control of stepping movements in patients with traumatic injuries or diseases of the spinal cord and / or the brain using transcutaneous electrical stimulation, which includes continuously stimulating the spinal cord at the level of the C5-C6, T11-T12 and L1-L2 vertebrae and simultaneously creating a synergistic effect to control foot movement by means of spatial-temporal stimulation of the flexor and extensor muscles of the lower leg in the corresponding phases of the gait cycle. This combined spinal and muscular stimulation enables a coordinated, complete gait, in which the patient is able to control the stepping movements, including controlling foot movements.

The invention relates to a device (1) for limiting and / or damping foot movement through an ankle joint, comprising: a support assembly (2) for supporting at a lower limb (112) and / or at a proximal end of the ankle joint (114); a holding assembly (3) for holding on the foot (110), preferably on the sole region of the foot (110); the device (1) comprises a support assembly (2) and a holding assembly (3), and at least one connecting element (4) extending between the support assembly (2) and the holding assembly (3) and connected to the support assembly (2) and the holding assembly (3), respectively, the device (1) further comprising a tensioning assembly (5) for tensioning the connecting element (4), the tensioning assembly (5) is designed in such a way that the connecting element (4) between the holding assembly (3) and the support assembly (2) can be switched between a released state and a tensioned state. The invention also relates to a shoe (100) for limiting and / or damping foot movements through the ankle joint.

The application provides a contralateral movement direction prediction method for heterolateral lower limb myoelectric signals and a related device, and belongs to the technical field of human biological signal processing and pattern recognition. The application uses the combined features of the surface myoelectric signals of the left and right lower limbs, the left foot plantar pressure and the right foot three-dimensional acceleration to construct a training set and a test set; a three-class gait prediction model is constructed, the three-class gait prediction model is trained based on the constructed training set, the three-class gait prediction model training result is tested based on the constructed test set, and a trained three-class gait prediction model is obtained; the combined features of the surface myoelectric signals of the left and right lower limbs, the left foot plantar pressure and the right foot three-dimensional acceleration are input into the trained three-class gait prediction model for right foot movement direction prediction, and a right foot movement direction prediction result is obtained. The application solves the problem of low accuracy of contralateral movement direction prediction for heterolateral lower limb myoelectric signals.

The application relates to the technical field of robot structure, and discloses a multi-form transformation robot which comprises a fuselage, a wheeled walking structure and a foot walking structure, the fuselage comprises a waist front baffle and a waist rear baffle; the wheeled walking structure comprises left walking wheels, a left side wheel connecting plate, right walking wheels and a right side wheel connecting plate, the left walking wheels and the right walking wheels are arranged below the left side and the right side of the fuselage respectively; the foot walking structure comprises a crotch, a leg, a foot and a thigh joint motor, one end of the crotch is connected with the fuselage, the other end of the crotch is connected with one end of the leg through the thigh joint motor, and the other end of the leg is connected with the foot. The application has the advantages that the robot can be flexibly switched between wheeled movement and foot movement, efficient movement on flat road surfaces can be realized, high adaptability in complex terrains can be realized, and the comprehensive mobility and application range of the robot are significantly improved.

1. The name of this design product: foot-covering exerciser and its main body. 2. Purpose of the product of this design: used for physical exercise, part of which is the main body of the exercise device. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the key points of the design: Design 1 3D drawing. 5. Designate Design 1 as the base design. 6. Other situations that require explanation Other explanations: Part A in the figure is made of transparent material; the length of this design product is not fixed, and the omitted length is indicated by parallel double-dotted lines.

The utility model provides an insole with a damping function. The insole comprises a body, a buffering piece, a front buffering piece and a rear buffering piece. Wherein the buffering piece, the front buffering piece and the rear buffering piece are integrally formed on the bottom surface of the body, the insole is made of a material with shock absorption and wear resistance as a basic material, the body, the buffering piece, the front buffering piece and the rear buffering piece are integrated and formed at the bottom of the insole through an integrally-formed hot-pressing process, and the body, the buffering piece, the front buffering piece and the rear buffering piece can be matched and combined in different colors. And the overall appearance of the insole is more layered. In addition, the buffer part and the balance beam are integrally designed in a 7 shape through the arc-shaped part, and collaborative optimization of foot movement supporting and stability is achieved. The arc-shaped part extends along the longitudinal arch of the foot arch and dynamically fits the shape of the foot sole during walking so as to form support; the balancing beams are arranged in the mode that the forefoot transversely extends to strengthen force exerting core areas on the two sides of the insole, the overall torsional rigidity of the forefoot is enhanced through a continuous supporting interface during steering or sudden stop or pedaling on the ground, and the lateral deviation and sliding tendency is restrained.

The invention discloses a vision-based standing long jump take-off violation detection method, which comprises the following steps of: setting a camera on the side surface of a standing long jump test area to acquire a video image, and calibrating four vertex coordinates of a rectangle in a take-off area and a take-off line edge point coordinate; key point coordinates, including left and right shoulders, elbows, wrists, crotches, knees, feet and tiptoes, of the testers in the take-off process are obtained based on 19 key point recognition models; calculating the coordinates of the key points to judge whether two feet are located in a take-off area, whether the two feet take off, whether footstep movement exists before take-off and whether the two hands contact the ground in front of a take-off line; and after the system is started, calculating a take-off violation score by integrating various judgment results, if the conditions that both feet are in an area, no step moves and no hand touches the ground are met in a set time window, judging that the condition is compliance, otherwise, judging that the condition is violation and outputting an early warning. The method can automatically and accurately detect the taking-off violation behavior of the standing long jump, and improves the fairness and efficiency of a sports test.

The utility model discloses a kind of double foot rehabilitation instruments of kicking ball obstacle surmounting. A kind of double foot rehabilitation instruments of kicking ball obstacle surmounting, including left handrail frame and right handrail frame, left handrail frame and right handrail frame are connected by a connecting rod, a winding drum is rotatably connected on connecting rod, and there is a training ball connected to the bottom of pull rope wound on winding drum;Connecting rod and winding drum are relatively fixed by locking mechanism;Obstacle surmounting assembly is installed on left handrail frame and right handrail frame;Obstacle surmounting assembly includes mounting plate, and mounting hole of matrix arrangement is opened on mounting plate, and mounting hole is used for detachably connected with horizontally arranged foam stick. The utility model realizes the rehabilitation training of two modes of kicking ball and obstacle surmounting. Through kicking ball, the rehabilitation training of foot movement strength is realized. Through obstacle surmounting, the training of foot lifting is realized.

The invention discloses a method and device for tracking foot movement in a shoe wearing state in the technical field of movement tracking, and the method comprises the steps that a test shoe body matched with a tester is selected, the test shoe body comprises a detachable upper vamp and a running shoe midsole, and the upper vamp is provided with a plurality of test holes. The detachable upper vamp and the running shoe midsole are installed in a matched mode, the multiple testing holes are formed in the upper vamp, when the testing shoe body is matched with the foot of a tester, the multiple testing holes are used for installing the identification body, the identification body stably and accurately displays the corresponding motion tracking point position of the foot externally, and therefore the testing shoe body is convenient to use. Motion information of the motion capture system is conveniently captured, then a motion model is established through motion analysis software, foot motion postures are accurately analyzed, biomechanical properties of materials and structural design of the running shoe midsole are evaluated, meanwhile, the detachable running shoe midsole is replaced according to different requirements, and then performance evaluation is conducted on different running shoe midsoles. The application range is wide.

The present application relates to the technical field of nerve monitoring, in particular to an intraoperative real-time feedback system and method for sacral nerve stimulation, the system comprising: a biological motion sensing unit for real-time monitoring of the body surface contraction movement of the perineum and perianal area and foot movement through a sensor and generating corresponding multi-modal sensing signals; a processing unit for receiving the multi-modal sensing signals and performing synchronization and feature extraction, inputting the extracted features into a pre-trained machine learning model to obtain a judgment result representing the effect of sacral nerve electrode implantation target point and the accuracy of the target point position; a feedback unit for receiving the judgment result and converting it into feedback information for unified display. The present application realizes objective quantitative evaluation through multi-modal signal synchronous perception and fusion, as well as integrated machine learning model, provides intelligent and predictive feedback beyond simple threshold judgment, and realizes precise guidance of electrode implantation.

The utility model relates to the technical field of medical rehabilitation instruments, in particular to a joint surgery postoperative limb rehabilitation exercise device which comprises a fixing bottom plate, a fixing transverse rod extending in the length direction of the fixing bottom plate is arranged at the top of the fixing bottom plate and located in the middle, and a forward and reverse motor is installed at the front end of the fixing transverse rod. The output end of the forward and reverse motor penetrates through the interior of the fixed cross rod and is connected with a driving screw rod, the driving screw rod is sleeved with a screw rod sliding sleeve in a threaded mode, and a distance graduated scale is arranged at the position, located on one side of the fixed cross rod, of the top of the fixed bottom plate. And by controlling the moving distance of the foot, the moving angle of the knee joint is controlled, and the rehabilitation device is suitable for different patients or different rehabilitation stages of the patients.

The utility model provides a waterproof shoe with a partial pressure elastic upper surface, which comprises a waterproof sole, a double-layer waterproof upper surface and water blocking curtains, the double-layer waterproof upper surface is fixedly arranged on the waterproof sole in a sealing way, the two water blocking curtains are adhered on the double-layer waterproof upper surface, and the two water blocking curtains are arranged in a mirror image way; according to the waterproof shoe, through the design of the double-layer waterproof upper, the waterproof performance is remarkably improved, and water is effectively prevented from being splashed into the shoe. The ventilation holes are designed to form convection, and the inside of the shoe is kept dry and comfortable. The water blocking curtain prevents water from entering while guaranteeing air permeability, and the double effects of water resistance and air permeability are achieved. The elastic partial pressure support provides support and cushioning for the foot, adapts to foot movement, and improves wearing comfort.

The application relates to a human action recognition and prediction method, which comprises the following steps: collecting foot acceleration data in real time; dividing a step phase based on the foot movement data, and constructing a step phase feature vector according to the foot movement data of each step phase; putting the step phase feature vector into a step phase classification model for classification and recognition to obtain a step phase classification result; and predicting whether the next action is a target action based on the step phase classification result. The application can accurately predict the target action and accelerate the starting speed of a response device.

The invention belongs to the field of rehabilitation training equipment, and discloses a prone four-limb linkage crawler and a control method thereof. The crawler comprises a main body support, and a hand movement mechanism, a transmission mechanism, an abdomen flexible supporting device, a foot movement mechanism, a man-machine interaction module, a power module, a sensing module and a control module which are respectively fixed on the main body support. The transmission mechanism comprises a transmission piece which is connected with the hand movement mechanism and the foot movement mechanism and enables the end executors on the same side to move synchronously. Opposite-side end actuators on the hand movement mechanism and the foot movement mechanism are fixed in opposite directions and perform circular motion; the abdomen flexible supporting device can achieve small-amplitude springing or / and twisting or / and swinging of the abdomen and the waist of the user along with movement of the four limbs in the training process. According to the crawler, the movement of four limbs of a user during training is closer to the multi-axis movement of an animal during crawling, an intelligent control method is introduced, and the self-adaptive and personalized rehabilitation requirements of the user are met.

A dynamic foot brace device for providing arch support to a foot of a user through energy storage at an ankle of the user during a step. The device includes a tension member including a first end coupled to an arch of the foot and a second end coupled to the ankle. The tension member may be configured to store energy from tension applied to the first end during a first phase of the step and release the energy to the foot as a propulsion force when the tension applied to the first end is released during a second phase of the step.

The invention discloses a foot inertial navigation positioning error correction method and system. According to the method, system position estimation is carried out on acceleration and angular velocity data output by an inertial measurement unit (IMU) by using a strapdown inertial navigation (SINS) algorithm. And gait distinguishing is carried out in combination with a dynamic threshold gait detection algorithm provided by the invention. When the foot motion is in a static interval, step length displacement is estimated by using a mixed step length estimation model, and when the result error of the step length model is small, the position state error is observed; and establishing a static interval error observation model in combination with static interval characteristics, and calculating attitude and speed state errors. And finally, estimating and correcting the pedestrian foot inertial navigation positioning error of the SINS by using an extended Kalman filter (EKF) algorithm to realize an accurate positioning function of pedestrian position information.

The invention discloses a resistance type ankle pump exerciser which comprises a sole-shaped bottom plate, a vertical upward supporting pipe is arranged on the right side of the upper end of the bottom plate, the tail end of the supporting pipe is bent leftwards to form a horizontal part, a pull rope capable of being pulled to move is arranged in the supporting pipe, and the pull rope is connected with a soft foot sleeve arranged on the foot in a sleeving mode. The foot sleeves can be similar to dancing shoes and can be arranged into series of different sizes, the pull rope and the foot sleeves can be connected through tying and can be conveniently opened and replaced, a heel groove for containing a heel is formed in the left side of the upper end of the bottom plate, and the other end of the pull rope is connected with a pull block located in the supporting pipe. After the foot of a patient wears the foot sleeve, the pull rope can be pulled to perform ankle pump movement, and the pull rope generates resistance for foot movement.

The invention discloses a supporting algorithm and system based on lightweight physical virtual human standing posture balance, and the algorithm comprises the steps: obtaining the foot state of a virtual human, judging which foot of the virtual human is subjected to standing posture calculation according to the foot state, and enabling the foot used for standing posture calculation to be a target foot; acquiring underfoot ground data of the target foot and lower limb data and crotch data corresponding to the target foot, and calculating the standing posture crotch height of the virtual human; the crotch of the virtual human is stretched to the standing posture crotch height, so that the virtual human reaches a standing state; and generating a foot movement track curve of the virtual human, and adjusting the leg position of the virtual human according to the foot movement track curve to recover the balance of the virtual human. A three-dimensional space is divided into a horizontal position and a vertical height, two behaviors of standing and balance maintaining are coupled and reconstructed, and the position of the crotch of the body is controlled.

The insole and the sole with the shovel-shaped TPU plate comprise an insole body, the top face of the insole body is provided with a wrapping part extending upwards along the peripheral contour, the bottom face of the insole body is provided with an insole lower layer for stabilizing the rear sole of a foot, the two sides of the half sole part of the insole body are each provided with a protruding part, and the bottom of the insole lower layer is provided with a containing cavity. When the shoe is used, the bearing part firstly makes contact with impact force brought by the foot sole, then the impact force is transmitted to the supporting parts and finally diffused to the positioning pieces at the ends of the supporting parts, pressure is buffered through the structure pressure bearing points, the stability of the heel is improved, the exercise comfort is improved, and the exercise risk is reduced; then the gravity center of the human body transits from the rear sole to the front sole, the design of the shovel-shaped structure of the middle supporting layer can keep the foot sole in a comfortable posture all the time when the foot sole moves, foot fatigue caused by long-term running is relieved, meanwhile, a certain springboard effect is provided, and good pushing force is provided for movement.

The invention discloses a multifunctional intelligent wheelchair control method and a multifunctional wheelchair, and belongs to the field of intelligent control. The back movement module and the hip movement module are matched to execute a turning-over action; the back movement module rotates to a preset back lifting angle to execute a back lifting action; the back movement module, the hip movement module and the leg and foot movement module cooperatively execute sitting-up actions; the back movement module, the hip movement module and the leg and foot movement module cooperatively execute the lying action; when the defecation system applies the defecation function, all the mechanisms cooperatively execute the defecation action. The electric wheelchair solves the technical problems that an existing electric wheelchair is single in function, low in intelligent degree and incapable of meeting the diversified requirements of people with lower limb mobility difficulties in daily life, and the technical effects that the multiple functions of turning over, back lifting, sitting up, lying and intelligent defecation are achieved, and the daily life requirements of people with lower limb mobility difficulties are met are achieved.

The invention provides a foot movement device which comprises a bottom plate, and a shaft body is transversely mounted at the top of the bottom plate; rotating sleeves are arranged on the two sides of the bottom end of the pedal, the rotating sleeves are rotationally arranged on the shaft body in a sleeving mode, and foot binding bands which can be mutually bonded are arranged on the two sides of the front face of the pedal respectively; the fixing mechanism is installed on the bottom plate and used for fixing the bottom plate to a sickbed. The massage mechanism is mounted on the front of the bottom plate and used for massaging soles of a patient. The rotation of the pedal and the movement of each rotating block are linked by utilizing the driving assembly, so that the driving assembly can be driven to transmit through the relative movement between the pedal and the shaft body when a patient performs foot movement, and the foot movement of the patient is used as the driving force for the rotation of each rotating block; the foot sole can be massaged while the patient moves the foot by using the device, so that the foot of the patient can be stimulated, the discomfort of the patient can be relieved, and the blood circulation of the leg of the patient can be promoted.

The application discloses a multi-mode analgesic device for heel blood sampling of infants, and belongs to the technical field of blood sample collection auxiliary equipment. The device comprises a first base body, the first base body is provided with a channel penetrating through both ends of the first base body, one end of the channel is used for exposing the heel of an infant, a pad assembly is arranged on the inner wall of the channel of the first base body, the pad assembly comprises a first pad and a second pad which are stacked in a top-down manner, and the first pad and the second pad are connected through a connecting piece; and the first base body is provided with a player. The scheme solves the problems in the prior art in terms of reducing the pain intervention of infant blood sampling and the application of blood sampling to infants, effectively relieves the pain of infant heel blood sampling, reduces uncontrollable foot movement of infants due to pain, and reduces the harm caused by blood sampling operation to infants.

The leg lifting assistance sock has a sock, an upper strap, and a lower strap. The leg lifting assistance sock utilizes straps that run down the sides of the leg and extend underneath the foot. The leg lifting assistance sock incorporates two different handle options to provide choices to the wearer based on their needs. The leg lifting assistance sock provides a lift at the knee while assisting the wearer in controlling foot movement. The left lifting assistance sock enhances mobility, improve stability, and promotes independence for those with limited leg control.

The embodiment of the utility model relates to the technical field of auxiliary instruments, in particular to a foot movement device which comprises a fixed plate fixed to the shank of a human body, a movable plate hinged to the end of the fixed plate and fixed to the foot of the human body, and a motor arranged at the hinged point of the fixed plate and the movable plate and used for driving the movable plate to move. The fixing plate is provided with a heightening block used for heightening the foot, and the fixing plate is provided with an adjusting assembly used for adjusting the position of the heightening block. The gastrocnemius muscle training device has the advantages that when the gastrocnemius muscle training device is actually used, the fixed plate is fixed to the shank of a user, the movable plate is fixed to the foot of the user, then the motor is started, the motor drives the movable plate to do reciprocating motion, and the gastrocnemius muscle training device assists the user in foot hooking and foot tightening operation to train gastrocnemius muscles and prevent formation of shank vein thrombosis; the position of the heightening block is adjusted through the adjusting assembly, the heightening height of the fixing plate can be adjusted according to the actual situation of a user, and actual use is facilitated.