12 results about "Normal gait" patented technology

Disclosed herein is an orthopedic device and methods to aid in reducing weight or pressure on a portion of a subject's knee while maintaining stability and normal gait patterns following injury or surgery. Certain embodiments include a main shaft for use in an orthopedic device, wherein the main shaft includes a curved portion. In embodiments, the curved portion cures outwardly in the walking direction. The curvature can comprise a curvature that is consistent with the maximum knee flexion angle that is observed during the loading phase of the normal gait cycle. In embodiments, the device further comprises a handle portion and a foot, wherein the main shaft is disposed between the handle portion and the foot. Additional aspects include a method of promoting the healing or recovery in a subject following injury or surgery of the knee using any one or more of the orthopedic devices disclosed herein.

A walking apparatus, e.g., a treadmill, which can be used in an optically pumped magnetometry (OPM) environment to measure the cortical dynamics of toddlers and adults while walking includes unique features. The treadmill is free of moving components and also free of magnetic metal. The treadmill includes a sloped portion that, in conjunction with a pair of designed shoes, has a low coefficient of friction to essentially allow the shoes to slide along the surface of the treadmill, which mimics a normal gait. The treadmill and shoes allow a user to be measured using an OPM to collect brain data during the gait.

The present application relates to the field of rehabilitation robots, in particular to a three-joint complete gait walking device, comprising a back connecting device, a hip joint movement mechanism, a knee joint movement mechanism and an ankle joint movement mechanism; the hip joint movement mechanism comprises a hip joint mounting plate, a thigh supporting rod and a thigh adjusting block, the hip joint mounting plate is arranged on a leg fixing mechanism, and the thigh adjusting block is adjustably arranged on the thigh supporting rod; the knee joint movement mechanism comprises a knee joint mounting plate, a calf adjusting block and a calf supporting rod, the knee joint mounting plate is arranged on the thigh adjusting block, and the calf supporting rod is adjustably arranged on the calf adjusting block; the ankle joint movement mechanism is arranged at the lower end of the calf supporting rod; driving mechanisms are arranged on the hip joint mounting plate and the knee joint mounting plate. The present application is used for gait training of patients with rehabilitation needs of walking disorders, the combined movement process is closer to normal gait walking, and it is more beneficial for gait training and improves the training effect.

The invention relates to the technical field of medical auxiliary instruments, and discloses a liver transplantation postoperative rehabilitation training device which comprises a base, a supporting frame and two leg lifting mechanisms. A plurality of universal wheels are mounted on the base; the supporting frame is movably installed on the base in the vertical direction, and a waist and abdomen supporting structure is installed on the supporting frame; the leg lifting mechanism comprises a connecting ring, a traction rope, a winding wheel and a winding motor, the winding motor is installed on the supporting frame, the winding wheel is installed on an output shaft of the winding motor, one end of the traction rope is wound around the winding wheel, the other end of the traction rope is connected to the connecting ring, and the connecting ring is used for binding the thighs of a user. When the patient performs postoperative walking rehabilitation exercise, the legs of the patient can be assisted to be lifted to a reasonable height, so that the user can make normal gaits when doing rehabilitation exercise, compensation gaits such as dragging and tiptoeing are prevented from being formed, and the effectiveness of rehabilitation exercise is improved.

The present application relates to the field of gait abnormality evaluation, in particular to a gait evaluation system and method based on a wearable sensor network, which comprises: collecting gait data of a user; classifying the gait data, including normal gait data and abnormal gait data; and scoring the classified gait data. The system and method objectively and accurately evaluate gait through an instrument. The lower limb gait data is collected by a data acquisition module, and the data is processed on this basis, and qualitative and quantitative evaluation of gait is performed, avoiding the direct experience and scale method in the prior art which relies on the subjective observation and scoring of testers, so that the evaluation is more objective.

The invention discloses an abnormal gait event detection method for an apoplexy hemiplegia patient based on an inertial sensor, and belongs to the field of human gait detection. The method specifically comprises the following steps: firstly, respectively placing IMUs (Inertial Measurement Units) at two heels of a to-be-tested apoplexy hemiplegia patient, and collecting foot motion data in a normal linear walking process; then, dividing each gait cycle into four stages by utilizing angular velocity, and carrying out gait event detection and updating of a threshold value of the gait event; next, performing gravity compensation through an Euler angle by using the original acceleration to obtain a fused linear acceleration at each moment, and further performing time derivation to obtain a fused linear jerk signal at each moment, and finally detecting occurrence moments of TO events and HS events in each gait cycle based on the fused linear jerk signal. The moment is the moment when the apoplexy hemiplegia patient to be detected has the abnormal gait event. According to the method, the key gait event can still be stably and accurately detected under the pathological gait condition, and the problem that an existing normal gait algorithm fails in the pathological gait is effectively avoided.

In combination with a knee brace, the variable radius spring assembly of the present invention provides a full range knee orthotic with support to the leg muscles without compromising the range of motion and the patient's normal walk / gate. The assembly comprises upper and lower hinge pieces attached to upper and lower sections of the brace, a spring bracket, and an elongated spring element that extends downward from the upper hinge piece past a catch on the lower hinge piece. Two such assemblies are attached to a knee brace, one on the inner side and one on the outer side. As the lower leg, and the lower hinge piece, move rearward, the catch forces the spring element rearward and slides downward along the spring element. Consequently, the spring element has a non-linear response requiring approximately the same about of force to deflect the spring element throughout its range of rearward travel.

The invention discloses a limb function intelligent reconstruction pneumatic exoskeleton robot and a control system thereof, and belongs to the technical field of robots. The robot is composed of lower limb exoskeleton mechanical structures in bilateral symmetry and a vehicle-mounted intelligent control system. The mechanical structure is driven by a single-joint pneumatic tendon and a multi-joint pneumatic tendon in a series-parallel mode, and assembly precision and motion adaptability are guaranteed through thread fixing and connection of a bearing and a universal joint. The control system integrates an electromyographic signal acquisition module, a multi-dimensional sensing module, an NI data acquisition module and a pneumatic execution unit, a CH343 chip and an independent USB serial port are adopted to solve the problem of signal shielding, and data synchronization is achieved through timestamps. The pneumatic muscle tendon is used as a driving source, has the advantages of being light in weight, large in load self-weight ratio, high in man-machine adaptation degree and good in flexibility, can complete normal gait assisting and shank load bearing 2kg assisting, and is suitable for limb rehabilitation, muscle exercise, rehabilitation rescue and exercise assisting scenes.

Embodiments of the invention provide knee prostheses which more faithfully and closely replicate the function, anatomy and physiology of the normal human knee yielding a number of advantages. Among other things, such prostheses can provide an increased range of motion and function more normally particularly in extension, deep flexion and during normal gait. Knee prostheses according to various aspects of the invention recognize that during movement of the knee, particularly during flexion, the kinematics of the bones of the knee are a result of achieving equilibrium of the forces that cause motion of the knee. In addition, the shape of the articular surfaces acting in combination with forces imposed by various muscles, ligaments and tendons, determines the direction of the large contact forces.

A gait event-driven, phase-dependent and multi-modal foot rehabilitation system, and a use method thereof. The system comprises: a pressure sensor module (110) which measures a pressure distribution value of a foot sole in real time; a micro-control module (111) which compares the measured pressure value with a preset threshold value to identify different gait events in a dynamic gait and a pressure balance on the inner and outer sides of the foot sole and to control a corresponding operation in real time; a neuromuscular electrical stimulation module (100) which applies or stops a suprathreshold electrical stimulation delivered to a target muscle of the foot on the basis of the recognized gait event; a combined pneumatic musculo-skeletal module (200) which comprises a pneumatic muscle (305) and deflates or inflates the pneumatic muscle (305) on the basis of the recognized gait event; and a vibratory biofeedback module (109) which, when recognizing an imbalance of pressure between the inner side and the outer side of the foot sole, provides a biofeedback to correct the imbalance of force exerted by the foot sole. The gait events comprises heel striking, heel off and sole off. The system can correct foot drop and foot varus, mitigate muscle compensation and dystrophy, and restore a normal gait.

A gait evaluating system including a processor is provided. The processor identifies whether a gait type of the user belongs to a normal gait, a non-neuropathic gait or a neuropathic gait based on step feature values of a user and walking limb feature values of the user. In response to that the gait type of the user belongs to the non-neuropathic gait, the processor controls the display panel to display a first auxiliary information, a second auxiliary information, and a third auxiliary information. The first auxiliary information indicates a potential sarcopenia of the user. The second auxiliary information indicates a dietary guideline for muscle building and muscle strengthening. The third auxiliary information shows a motion instruction video for regaining or maintaining muscle strength of the user.

The utility model discloses an adjustable lower limb rehabilitation gait training device which is mainly composed of an instrument rack, a walking machine part, an upper limb fixing part, a lower limb training part and a control adjusting device, the walking machine part comprises a roller, a belt, a cover cap and a bearing table, the upper limb fixing part comprises a backrest plate, a waist fixing belt and an arm supporting frame, and the lower limb training part comprises a lower limb supporting frame. The lower limb training component comprises a thigh cooperation frame, a shank cooperation frame and a foot cooperation frame, all the components are driven by a driving motor A, a driving motor B and a driving motor C respectively to make cooperation movement so as to help the patient to recover the normal gait, each cooperation frame is provided with a containing groove, it is ensured that the lower limb of the patient is stable, and therefore the patient can feel more comfortable. The control adjusting device adjusts the movement speed and angle of the driving motor through the touch screen control module, the microcontroller and the motor controller, so that the speed and pace of the gait are adjusted, and the patient is helped to conduct rehabilitation training.