52 results about "Quadriceps femoris muscle" patented technology

The present invention provides a new prosthetic knee and lower leg device that enables an above-the-knee amputee to participate in demanding athletic activities in which the quadricep muscles are used extensively for support and dynamic function. The prosthetic device includes a residual thigh attachment plate that is pivotally coupled to a shin frame. An adjustable suspension strut is coupled to both the residual thigh attachment plate and the shin frame. The functional length of the strut can be adjusted, as can be the lower mounting position thereof. The prosthetic device can be adjusted with regard to functional characteristics, performance settings, and “home position” angles of the knee. The extent of adjustability enables the user to adapt the device for different levels of aggressiveness, different activities and different circumstances, and also allows the device to be adapted to users of different weights and size.

The present invention relates to an exercise apparatus for exercising muscle groups in a person's legs by stretching and / or retraction. The exercise apparatus comprises at least a first frame and at least a first foot platform which is rotatably fastened to a bearing, the bearing is placed in relation to the person's foot for exercise at least plantar flexion and / or dorsal flexion, and the exercise apparatus further includes a leg support. Hereby can be achieved exercising of the muscle groups by stretching and / or retraction (quadriceps femoris, biceps femoris, semitendinosus, semimembranosus, gastrocnememius, tibialis posterior, tibialis anterior, peroneus longus, peroneus brevis and soleus) in the legs of a person, and the muscles (soleus, gastrocnemius, tibialis posterior, peroneus brevis, peroneus longus, biceps femoris, semitendinosus, semimembranosus) at the back side of the legs.

Exercise machines for the leg muscles using separate machines for the biceps femoris and quadriceps and with the biceps femoris machines configured so that the muscle attachment below the knee is the “origin” and the muscle attachment on the upper leg and hip bone is the “insertion”.

The present invention provides a leg rehabilitation exercise apparatus, which includes: a base; a seat arranged on the base; a leg exercise frame arranged on the base; an upper rotation-supporting member arranged on the leg exercise frame; a lower rotation-supporting member arranged on the leg exercise frame; a reciprocating motion section including a left lifting / lowering motion section, a right lifting / lowering motion section, an upper connection section, and a lower connection section; a left lifting / lowering member arranged on the left lifting / lowering motion section; and a right lifting / lowering member arranged on the right lifting / lowering motion section. The left lifting / lowering motion section and the right lifting / lowering motion section are operable to do lifting / lowering motions in opposite directions. The leg rehabilitation exercise apparatus of the present invention achieves an effective result of training quadriceps muscles of thighs and shanks and is also an operation safe device.

The invention discloses a quadruped bionic system based on the pneumatic muscle. The bionic system uses the pneumatic muscle to simulate the muscle of a quadruped to drive the neck, fore legs, thoracic joint, lumbar joint and hind legs to move, particularly simulate the pneumatic muscle having the actions of the sternocephalicus muscle, brachiocephalic muscle, musculi splenius, superficialis chestmuscle, arm triceps muscle, wrist radial extensor muscle, wrist oblique extensor muscle, wrist ulnar lateral flexor muscle, wrist radial flexor muscle and the like to drive the neck and the fore legsto flex, fold, unfold and rotate, simulate the posterior serratus muscle and the latissimus dorsi muscle to drive the thoracic joint to do lateral bending, pitching and circular rotation motions, simulate the internal oblique muscle and the medius arm muscle to drive the lumbar joint to do lateral bending, pitching and circular rotation motions, and simulate the pneumatic muscle having the actions of tensor fascia lata, quadriceps femoris, semitendinosus, tibialis anterior, peroneal longus, gastrocnemius and the like to drive the hind legs to flex, fold and unfold. According to the quadrupedbionic system based on the pneumatic muscle, the pneumatic muscle is used for driving, the quadruped bionic system based on the pneumatic muscle has the beneficial effects of being compact in structure, clean and good in explosion-proof performance and can be used for teaching and demonstration.

The invention relates to a physical exercise equipment, in particular to a physical exercise equipment for quadriceps training. The technical problem of the present invention is to provide a physical exercise for quadriceps femoris training that can independently adjust the exercise intensity, provide a buffer for the falling of the counterweight, automatically remove the limit bar for exercise, further lock the limit bar and easily unlock it. equipment. A kind of physical training equipment for quadriceps femoris training, comprising: a base plate, a first cushion block connected to the upper side of the base plate; a first support frame, a first support frame connected to the upper side of the first cushion block; a support mechanism, A support mechanism is provided on the upper part of the first support frame; an exercise mechanism is provided with an exercise mechanism on the support mechanism. The present invention pushes the fifth support frame to move downward through the third support frame and the counterweight, and the first spring is compressed, so as to provide buffering effect for the third support frame and the counterweight to fall downward, avoiding parts damage.

A quadriceps femoris rehabilitation training device belongs to the field of rehabilitation training devices, and aims to solve the problems of inconvenience in use of a user as the existing rehabilitation devices cannot meet the demands of the user for increasing or reducing loads. A servo motor and a planetary reducer are mounted in a base, a driving wheel is mounted on the servo motor, a driven wheel is connected with the planetary reducer, and the driving and driven wheels are connected by a first transmission belt; the lower end of a support is fixed on a mounting base plate, and a driving roller and a driven roller are arranged in the support, and connected with a second transmission belt; a swing rod is connected with the driven roller by an angular contact ball bearing; a leg moment adjusting seat is sleeved at the lower part of the swing rod; a leg guard is mounted on the leg moment adjusting seat by a leg guard support rod; and a seat is mounted on the base. The rehabilitation training device is used for the rehabilitation of quadriceps femoris.

The invention relates to a joint motion estimation method based on an EMG model and an unscented Kalman filter. Firstly, the biceps femoris, quadriceps femoris, vastus lateralis, vastus medialis, half The EMG signals and real-time angles of the tendon and gracilis muscles are processed by band-pass filtering, and the wavelet coefficients and root mean square features are extracted, and then a method that combines muscle dynamics, joint dynamics, bone dynamics and The state-space myoelectric model of relevant myoelectric features, through the unscented Kalman filter algorithm, obtains the Sigma sampling set χ i and weight W i , and then make further predictions, calculate the system state variables and covariance matrix P(k+1|k), and realize the estimation of the continuous motion of the knee joint after an iterative cycle. Compared with the traditional angle estimation method, this method reduces the influence of system error, cumulative error and external interference, has high precision, good stability, and quick response to target maneuvering, which has been significantly improved.