24 results about "Knee extension" patented technology

The invention relates to the technical field of medical equipment, in particular to an unpowered knee joint exoskeleton robot structural design which comprises a thigh mechanism (I), an energy-saving clutch mechanism (II) and a shank mechanism (III) and is characterized in that the thigh mechanism, the energy-saving clutch mechanism and the shank mechanism are matched with the same connecting shaft; a thigh rod of the thigh mechanism can rotate on a connecting shaft, and a gear tooth part of the shank mechanism is matched with a duplicate gear of the energy-saving clutch mechanism. In the running process, elastic rubber is used for storing energy in the knee joint bending stage and releasing the stored energy in the knee joint stretching stage, so that auxiliary torque is provided for the knee joint, storage and release of the energy are accurately controlled through a micro servo motor, and the function of a clutch mechanism is achieved. In addition, the clutch mechanism adopts a two-stage duplicate gear, extra force of a user during running is reduced, and meanwhile, a micro servo motor can limit rotation of a second duplicate gear through a servo pin with extremely small force.

An exercise machine that enables users to perform both leg press and knee extension exercises efficiently. The exercise machine includes a base platform and an adjustable backrest that supports the user's back to facilitate the leg press exercise. The backrest slides along guide bars, allowing for customizable reclining positions, and its angle can be adjusted for user comfort. A footrest, hinged at the base platform, engages leg muscles during the leg press exercise and is connected to a weight stack for adjustable resistance. The footrest's range of movement can be controlled to prevent excessive rotation. Additionally, a lever pad is positioned to support the user's knees during knee extension exercises, with adjustable resistance through a second weight stack. The lever pad's range of motion can also be regulated for safety. The exercise machine integrates both exercises, promoting full-body muscle engagement and enhancing strength and cardiovascular health.

The utility model discloses a knee flexion and extension mechanism and a knee training device, and the knee flexion and extension mechanism comprises a fixed seat which is provided with a supporting column; one end of the guide piece is rotationally arranged on one side of the supporting column, and a first pulley is rotationally arranged at the other end of the guide piece; the supporting column is provided with a first limiting column for limiting the downward rotation stroke of the guide piece. The guide wheel is rotationally arranged on the supporting column and located on the outer side of the guide piece, and a second limiting column located below the guide piece is arranged on one side of the guide wheel in a protruding mode; one end of the leg stress frame is fixed to the center of the outer side of the guide wheel, and the other end of the leg stress frame extends outwards; and one end of the resistance rope is wound from bottom to top, passes through the first pulley and then is fixed on the guide wheel so as to apply resistance to the rotation process of the guide wheel, and the other end of the resistance rope extends outwards. The knee stretching and bending training device has the dual functions of knee stretching training and knee bending training at the same time, and the problem that resistance suddenly loses efficacy in the forward and reverse rotation process of knee stretching and knee bending does not exist.

An extension-assisted hinged knee replacement comprises a femoral component, a tibial component, and a torque actuator operably interfacing the two components. The torque actuator is configured to apply extension torque based on the flexion angle of the knee, with the torque peaking between 0° and 90° of flexion. The implant may include a passive biasing element, which can be compressed or tensioned to enhance torque application, particularly during critical phases of knee extension.

An apparatus for knee extension and flexion worn about a leg of a user. The apparatus includes a frame having a generally parallel first and second frame sides, a handle end and a foot support end. The first frame side includes a first upper leg portion, a first lower leg portion, and a first knee hinge. The second frame side includes a second upper leg portion, a second lower leg portion, and a second knee hinge. The apparatus includes a handle having a handle pivot end and a handle distal end and the handle configured to rotate the first lower leg portion relative to the first upper leg portion. The apparatus includes a knee angle sensor to measure an angle at the first knee hinge.

The traction type knee-ankle-foot orthosis comprises a thigh sleeve, a shank sleeve and a foot support, the thigh sleeve and the shank sleeve are vertically arranged, the thigh sleeve is located above the shank sleeve, the foot support is arranged below the shank sleeve in the front-back direction, the lower end of the thigh sleeve is connected with the upper end of the shank sleeve through a first connecting piece, and the lower end of the shank sleeve is connected with the foot support through a second connecting piece. The lower end of the shank sleeve is vertically connected with the rear end of the foot support in a swinging and rotating mode through a second connecting piece, the corresponding middle of the foot support in the length direction is connected with the upper end of the shank sleeve through an angle adjusting piece, and the angle adjusting piece is used for adjusting the vertical inclination angle of the foot support relative to the shank sleeve. When the knee joint is fixed at a 0-degree knee stretching position, the ankle joint is passively pulled, so that the increase of muscular tension can be effectively controlled, the tendon contracture is prevented, and the deformity is corrected.

An apparatus for enhancing knee flexion and extension exercises by integrating dynamic movement and coordination across the upper body, core, and lower body. The apparatus includes a base platform with an adjustable backrest that supports the user's back. The apparatus includes multiple adjustable lever pads for knee extension and flexion exercises, each with customizable resistance via weight stacks and range controllers to ensure safety and comfort. A third lever pad allows for lateral hip flexion exercises, promoting engagement of core and hip muscles. These components are designed to accommodate users of varying sizes and fitness levels, while the apparatus facilitates multi-planar movement, improving neuromuscular coordination, balance, and reducing the risk of injury through natural, functional exercise patterns.

The utility model relates to the technical field of medical instruments, in particular to a quantitative anti-stretching knee patella axial position X-ray radiography auxiliary device which comprises a chair frame, a bending and stretching frame, a telescopic piece and a pressure sensor. The pressure sensor is arranged on the flexion and extension frame, and the pressure sensor is pushed when the patient straightens the shank. By arranging a pressure sensor, the acting force applied to the flexion and extension frame by the patient in different knee extension resistance states can be detected and recorded in real time. The flexion and extension frame comprises a hinged end and a fixed end, and the hinged end is hinged to the chair frame; the flexion and extension frame is adjusted to a preset angle through stretching of the telescopic piece; the angle between the flexion and extension frame and the vertical direction can be conveniently changed through the adjustment of the telescopic piece, so that the patella of a patient can be subjected to X-ray radiography at different angles. The multi-angle knee joint quantitative anti-resistance shooting is helpful for doctors to more comprehensively understand the motion trails and forms of the patella in different resistance states, and the accuracy and comprehensiveness of clinical diagnosis are improved.

A knee extension stretch device operable to apply force which assists in extension of the knee joint of a user in a static progressive manner which includes a device body having an attached torso wrap. The device body is structured to run along a substantially straightened target leg that is positioned in front of a seated user, with the connected torso wrap extending from the device body and encircling the user's torso. The device body is structured to transfer the force created by the user leaning back into the torso wrap into force which acts on the leg of the user both above the knee and below the knee simultaneously to force extension of the knee. In this regard, the user is able to apply force which helps with knee extension, and control the amount of force applied, without needing to use their hands or arms.

The utility model discloses lady trousers which comprise a trouser waist part and a trouser body, the trouser waist part and the trouser body are formed by weaving surface yarns which are 150D polypropylene fibers and lining yarns which are 50D / 72F polyester fibers which wrap 40D spandex fibers in an empty mode, and the trouser body comprises two front abdomen side parts, thigh outer side parts, popliteal space parts, hip bottom ends and knee extending parts. The two sides of the anterior belly, the bottom end of the hip and the popliteal fossa part are woven by fourth fabric to form a breathable area, the outer side parts of the thighs are woven by sixth fabric to form a breathable area, and the knee extension parts are woven by seventh fabric to form a breathable area. The fibers are integrally woven, the hydrophobic yarns are adopted to form different hygroscopicity on two sides, sweat stains are reduced, a sweat-releasing and breathable woven structure is adopted at a part with much sweat, the breathability of the trousers is improved, a human body is kept dry and comfortable, the woven structure with large stretchability is locally adopted, the local stretchability of the trousers is improved, and the comfort of the trousers is improved. And the degree of freedom and comfort during movement are ensured while the local part is protected.

To provide a muscle-increasing agent which can daily and continuously be taken and is for increasing muscle strength and maintaining muscle strength of middle-aged and elderly persons.SOLUTION: There are provided an agent containing GABA as an active ingredient, which can increase muscle strength represented by knee extension muscular strength which is necessary for maintaining ability to stand and walk by combination of GABA intake and light exercise, and a food and drink composition for increasing muscle strength, which contains GABA as an active ingredient.SELECTED DRAWING: None

The invention discloses wearable multi-joint linkage energy harvesting and motion assisting equipment, and relates to the field of wearable assisting equipment. The wearable energy recovery device solves the problems that an existing wearable energy recovery device is complex in structure, large in dead weight and uncomfortable to wear. A supporting and fixing frame is worn on the outer side of the thigh, a differential line wheel module and an acceleration power generation module are installed on the supporting and fixing frame, and a foot pedal module is worn on the foot; one end of the upper pull line is fixed on the differential line wheel module, and the other end of the upper pull line is connected with a waist belt of a wearer and is used for recovering energy generated when the hip joint stretches and providing assistance for the flexion movement of the hip joint; and one end of the lower stay wire is fixed on the differential wire wheel module, and the other end of the lower stay wire is fixed on the foot pedal module, so that the energy generated when the knee joint stretches and the heel touches the ground is recovered, and assistance is provided for the flexion of the knee joint. The device is used for energy recovery of the three joints of the hip, the knee and the ankle and movement assistance of the two joints of the hip and the knee.

This application discloses a knee extension exercise assistive device, comprising: a base unit and a pressure unit; the base unit includes a flat base body, with a thigh support pad formed on the upper side of its first end and a calf support pad formed on the upper side of its second end; a through-hole extending in the vertical direction is formed at the middle position of the front part of the base unit; a threaded hole extending in the front-rear direction is formed on the front side of the front part of the base unit; the threaded hole communicates with the through-hole; a bolt is installed in the threaded hole; the pressure unit includes: a knee pressure plate and a connecting rod; a recessed portion corresponding to the knee is formed on the lower side of the knee pressure plate, and the knee pressure plate is used to press on the knee of the subject from above; the upper part of the connecting rod is curved, and the lower part is vertical; the upper part of the connecting rod is fixed together with the upper part of the knee pressure plate; the lower part of the connecting rod is inserted into the through-hole of the base body; the end of the bolt in the threaded hole of the base body abuts against the outer surface of the lower part of the connecting rod.

A configurable exercise apparatus is disclosed for facilitating safe and effective hip extension exercises. The apparatus comprises a frame, an upper body support pivotally attached to a rear portion of the frame, a foot support forward of the upper body support, and a cross-member disposed between them. The cross-member limits knee movement and allows shin engagement, while the upper and foot supports are adjustable to optimize user alignment. Interchangeable foot surfaces and an elongated upper body support provide stability and ergonomic positioning during exercise. The system enables controlled hip articulation through a customizable range of motion.

The application discloses a limb auxiliary exoskeleton device based on self-adaptive adjustment and energy recovery, which comprises a waistband assembly, two groups of main and passive power assisting mechanisms arranged on both sides of the waistband assembly, limb auxiliary support assemblies arranged on opposite sides of the two groups of main and passive power assisting mechanisms respectively, and energy storage mechanisms arranged on each limb auxiliary support assembly, wherein when the limb auxiliary support assemblies are bent and stretched, the energy storage mechanisms store the potential energy of the movement to further provide power assistance for the active knee extension action of the corresponding limb auxiliary support assembly. Through the on-off control of the electric push rod and the action of the extracorporeal sensing module, the main and passive power assisting mode of the lower limbs is selectively provided, the passive bending and stretching of the lower limbs are adjusted in real time according to the action trend, different activity requirements are met, in addition, the energy storage mechanism is arranged, the energy can be stored in the main and passive activities, and the stored energy is used in the power assisting action, so that an energy collection and release process is realized.

1. The name of the design product: stretch leg integrated machine (K102). 2. The use of the design product: for fitness. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

A method for real-time adaptation of gait training parameters (10) applicable to a gait training device (100), wherein the gait training device (100) comprises a detection unit, a training unit and a control unit, wherein the control unit is electrically connected to the detection unit and the training unit and controls the operation of the training unit, the method for real-time adaptation of gait training parameters (10) comprising the steps of: (a) Collecting, by the acquisition unit, the muscle relaxation gait data of at least one first user measured during gait training in a muscle relaxation state and the active power output gait data of the at least one first user measured during gait training in the active power output state of the first user; and then, creating, by the control unit, a standard motion model based on the ratio of the active power output gait data of the first user to the muscle relaxation gait data of the first user; (b) Obtaining a movement model of a second user comprising the muscle relaxation gait data of the second user measured during gait training under the muscle relaxation state of the second user, and then estimating a plurality of personalized training models of different difficulty levels by combining the muscle relaxation gait data of the second user with the standard movement model with 10%, 15%, 20%, 25%, 30%, 40%, 50%, 60%, 70%, 80%, 90% and 100% difficulty curves, so that personalized training models with different difficulty levels are created and the difficulty curves can be adjusted according to requirements by the control unit; and (c) determining whether the actual training status of the second user matches the standard of the one of the personalized training models, and then adjusting the one of the personalized training models and providing a replacement training model by the control unit, wherein the gait training comprises at least one gait cycle and the gait cycle is divided into a center of gravity shift interval (F1), a hip flexion interval (F2) and a knee extension interval (F3), wherein, in step (b), the calculation method of the control unit for estimating the personalized training model from the muscle relaxation gait data of the second user comprises, when the muscle relaxation state of the second user is obtained, obtaining a maximum value of the force in a muscle relaxation state and a minimum value of the force in a muscle relaxation state in the gait cycle, whereupon, when the second user is actively outputting force, estimating a predicted maximum value of the active force output and a predicted minimum value of the active force output in the gait cycle of the second user by the standard motion model, whereupon, when the second user is in the active force output state, using the value obtained by the detection unit to obtain an actual maximum value of the active force output and an actual minimum value of the active force output in the gait cycle,When the second user actively exerts force, the actual maximum value of the active force output, the predicted maximum value of the active force output, and the maximum value of the force in the muscle relaxation state are input into a calculation formula for the center of gravity shift interval; and the actual minimum value of the active force output, the predicted minimum value of the active force output, and the minimum value of the force in the muscle relaxation state are input into a calculation formula for the hip flexion interval to obtain the force output level of the center of gravity shift interval (F1) and the force output level of the hip flexion interval (F2), after which the lower force output level is used as these personalized training models of different difficulty levels for the second user.

The invention relates to a fitness machine for performing a knee extension exercise of a user with at least a torso, a hip, an upper leg and a lower leg, which fitness machine comprises : a main frame; an upper leg support connected to the main frame and extending between a distal and a proximal outer end, such as for instance an upper leg pad, which upper leg support is configured to support at least one upper leg of the user in a first plane during use; a torso support, such as for instance a back pad, connected to the main frame, which torso support is configured to support the torso of the user in a second plane during use; a pivot arm connected to the main frame and configured to be operated with the lower leg during use, which pivot arm is rotatable about a pivot axis lying close to the distal outer end of the upper leg support, wherein the first and the second plane are oriented relative to each other for supporting the at least one upper leg and the torso of the user in an exercise position, between o maximum hip extension on one hand and a maximum of 30° hip flexion on the other, while the exercise is being performed.

An apparatus for knee extension for use with a knee brace. The apparatus includes a frame having first and second frame sides, a foot support end and a handle end. The apparatus includes a heel support and a thigh support each spanning across the frame sides. The apparatus includes an upper exterior attachment member attached to the first frame side and further attachable to an upper exterior bar element of the knee brace with the knee brace being worn by the user. The apparatus includes a lower exterior attachment member attached to the first frame side and further attachable to a lower exterior bar element of the knee brace with the knee brace being worn by the user.

A range controller for use on a machine for weight training include a range controller for movement of a weight stack, a range controller for linear movement of a carriage moving along a track, and a range controller for controlling an angular movement of a pivotally coupled lever, such as one used for a knee extension. The range controller can be implemented, depending on requirement, for controlling a range of movements of different mechanisms of a machine, such as a weight stack, a carriage, or a rotating lever, to control range of motion of a user's joints or structure.

The utility model relates to the technical field of medical apparatus and instruments, and provides a knee reverse arch fixator under the human body dynamics principle, which comprises a thigh fixing sleeve arranged around the front part of a thigh of a patient; the shank fixing sleeve is used for being arranged around the rear portion of the shank of the patient, and the thigh fixing sleeve and the shank fixing sleeve are each of an arc-shaped semi-surrounding structure; the thigh fixing sleeve and the shank fixing sleeve are hinged together through the knee joint hinge; the knee joint hinge has an activity state enabling the thigh fixing sleeve and the shank fixing sleeve to bend and an extension state enabling the thigh fixing sleeve and the shank fixing sleeve to extend. The thigh fixing sleeve and the shank fixing sleeve are arranged on the quadriceps femoris muscle on the front portion of the thigh of the patient and the gastrocnemius muscle on the rear portion of the shank of the patient in a sleeving mode respectively, and ground return stress (knee joint rear stretching force shaft) generated when the patient bears loads on the single leg in the gait cycle is resisted. The front fork ligament (the front fork tension is large when the knee is excessively stretched) is effectively protected, and the knee is prevented from being excessively stretched.

The invention provides a knee joint orthosis achieving knee stretching and bending assistance, and relates to the field of rehabilitation devices. Comprising back plates, wearing grooves and connecting belts, the two back plates are arranged, the wearing grooves are fixedly connected to the front sides of the back plates, the sections of the wearing grooves are in an arc shape, the connecting belts are located on the opposite sides of the back plates, the two ends of each connecting belt are fixedly connected to the opposite sides of the back plates respectively, and the connecting belts are made of tough materials. The side, away from the wearing groove, of the back plate is fixedly connected with a stretching and bending auxiliary mechanism. The output end of an electric telescopic rod is used for pulling a fixing block downwards, at the moment, a control strip pushes a control wheel outwards, a pull rope slides on a guide wheel and a control hub and is stretched outwards at the same time, meanwhile, the stretched top end pulls a back plate to be folded inwards, and a connecting belt is bent outwards to be synchronously bent along with the popliteal space area; when the patient is helped to do knee joint bending exercise and orthopedic, the patient is helped to avoid secondary injury of the knee joint caused by overexertion or overlarge amplitude of knee joint orthopedic of the patient.

The utility model discloses a knee joint straightening exercise device for a patient after total knee arthroplasty, and aims to solve the problems that in the prior art, heavy objects such as sandbags or salt bags are easy to slip off when applied to knee positions, the weight of the sandbags or the salt bags is not easy to control, bruises are easy to cause if the heavy objects are too heavy, and the knee joint straightening exercise device is inconvenient to use. The technical problems that a salt bag or a sand bag is tightly wound and fixed through multiple layers of adhesive tapes or bandages, comfort is poor, complications and even local skin necrosis can occur seriously, and ice compress pain relieving and bleeding stopping operation on knee joints is troublesome are solved. The knee joint straightening exercise device comprises a base, a supporting plate is installed on the top face of the base, a sliding groove is formed in the outer surface of the supporting plate, and a lifting plate is arranged above the supporting plate. The comfort degree of the water bag pressing the legs of the patient is increased, the downward pressing force of the legs of the patient can be visually checked, and bruises caused by excessive pressure are prevented.

The invention discloses a knee joint energy storage assisting exoskeleton which comprises a first protection plate, a second protection plate and a connecting assembly, and the first protection plate is used for being connected with the thigh of the human body; the second protection plate is used for being connected with the shank of the human body, and the first protection plate and the second protection plate are matched to support the exoskeleton. The connecting assembly is used for connecting the first protection plate and the second protection plate and comprises a supporting rod and a damping base, one end of the supporting rod is connected with the first protection plate, and the other end of the supporting rod is rotationally connected with the damping base which is connected with the second protection plate. A damping energy storage device is arranged on the damping seat and abuts against the supporting rod. By means of the matching relation that the damping energy storage device arranged on the damping seat abuts against the supporting rod, mechanical energy is converted into elastic potential energy to be stored in the rotating process of the supporting rod, the impact load is dynamically buffered, and the damping and pressure reducing effect is improved; the shock absorption and energy storage device absorbs energy in the knee bending stage and releases energy in the knee stretching stage, and physical output of a user is remarkably reduced.