45 results about "Left quadriceps" patented technology

An improved method and apparatus for reducing a hip fracture utilizing a minimally invasive procedure which does not require incision of the quadriceps. A femoral implant in accordance with the present invention achieves intramedullary fixation as well as fixation into the femoral head to allow for the compression needed for a femoral fracture to heal. To position the femoral implant of the present invention, an incision is made along the greater trochanter. Because the greater trochanter is not circumferentially covered with muscles, the incision can be made and the wound developed through the skin and fascia to expose the greater trochanter, without incising muscle, including, e.g., the quadriceps. After exposing the greater trochanter, novel instruments of the present invention are utilized to prepare a cavity in the femur extending from the greater trochanter into the femoral head and further extending from the greater trochanter into the intramedullary canal of the femur. After preparation of the femoral cavity, a femoral implant in accordance with the present invention is inserted into the aforementioned cavity in the femur. The femoral implant is thereafter secured in the femur, with portions of the implant extending into and being secured within the femoral head and portions of the implant extending into and being secured within the femoral shaft.

The distal end part of the retractor according to the invention is provided both with terminal tips for abutment on one of the femoral condylar walls which define therebetween the intercondylar space, and with a wing extending laterally in projection from this end part in order to form a frontal surface for thrust, in a medial-lateral direction, of that part of the quadriceps muscle tendon containing the patella when the tips are in abutment in the intercondylar space. By using this retractor as a lever, the wing efficiently reclines the patella, without turning it completely on itself, entirely exposing one of the femoral condyles. This invention is more particularly applicable to a surgical procedure for implanting a unicompartmental knee prosthesis.

A knee brace functions to extensionally center and thereby enhance patellar function. The brace comprises an upper bracket assembly, a lower bracket assembly, and certain torsional spring assemblies. The upper and lower bracket assemblies comprise leg-receiving bracket portions and certain axial support structure extending from the bracket portions to bracket junctions. Each spring assembly comprises a torsional spring element and an elastically compressible core element. The torsional spring elements compressibly receive the core elements. The torsional spring elements are actuable for imparting restorative resistance forces, and the core elements function to damp the restorative resistance forces. The damped restorative resistance forces function to safely enhance quadriceps muscle contraction during knee extension. The enhanced quadriceps muscle contraction functions to center the patella during knee extension, and thereby enhance patellar function. The brace may be attached to an anchored leg-covering garment for further restricting axial displacement relative to the leg.

A knee brace functions to extensionally center and thereby enhance patellar function. The brace comprises an upper bracket assembly, a lower bracket assembly, and certain torsional spring assemblies. The upper and lower bracket assemblies comprise leg-receiving bracket portions and certain axial support structure extending from the bracket portions to bracket junctions. Each spring assembly comprises a torsional spring element and an elastically compressible core element. The torsional spring elements compressibly receive the core elements. The torsional spring elements are actuable for imparting restorative resistance forces, and the core elements function to damp the restorative resistance forces. The damped restorative resistance forces function to safely enhance quadriceps muscle contraction during knee extension. The enhanced quadriceps muscle contraction functions to center the patella during knee extension, and thereby enhance patellar function. The brace may be attached to an anchored leg-covering garment for further restricting axial displacement relative to the leg.

A hand held weight lifting device with a finger grip system attached to a resistance mechanism that is visually located in the middle of the handle and is designed to target the hands, wrist and forearms. The handles may be removed allowing a person to perform all dumbell related exercises. When using a collar, that safely and securely stabilizes the weights in a stationary form, the device can transform from solo or single status, to a dual, unilateral exercise experience. The device can be adjusted from 10″ to 20″ depending on the type of exercise required. The device, coupled with ankle straps and shin pads, provides a person the ability to perform lower body exercises targeting the hamstrings (rear thighs), quadriceps (thighs), lower abs (leg raises) and calfs. In regards to the upper body, the handles provide a comfort grip while performing exercises targeting all major muscles associated with the torso as well as biceps (arms) and trapezius (shoulders). This device is equipped with a resistance bar. When attached to both handles and the handles are squeezed together, it in turn targets the pectoral (chest) muscle.

A protective trouser sports garment is made of an elastic fabric both in the longitudinal direction and in the transverse direction, and has respective longitudinal reinforcements both in the front part of the garment intended to act on the quadriceps muscles and in the rear part of the garment, intended to act on the hamstring muscles, extending on both front and rear faces from the waist and on both legs to the area slightly above the knee of the user, both reinforcements having considerable elasticity in the longitudinal direction and another elasticity in the transverse direction.

A device for exercising leg muscles, ligaments, and tendons attendant to movement of a human knee following knee replacement surgery or during rehabilitation following knee injury is provided. The user lies supine on a flat surface and braces the back of his or her upper thigh against the device's leg support bar, so that the user's upper thigh is approximately perpendicular to the user's upper torso. The patient maintains this position and exercises the knee by extending and flexing his or her lower leg. Some embodiments include an elastic band that attaches to the device in a position that limits the degree of leg flexion to within a desired range. Some embodiments include an ankle strap attached to a cord, which may be used to build quadriceps strength through application of resistance, and / or for applying downward pulling force to the lower leg during passive range-of-motion exercising.

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.

This squat exercise machine is comprised of a dynamic seat connected to a dynamic foot-plate where the weights are used to counter the weight of the exerciser and thereby assist him to raise himself from a squatting position to a starting sitting position. The squat exercise machine exercises the thigh muscles otherwise known as the quadriceps and the buttock muscles otherwise known as the gluteus group of muscles. At least one adjustable hand bar is positioned to aid entry to and exit from the machine and at least one handle to help to stabilize the user while exercising.A method for using the assisted squat exerciser is comprised of sitting on the dynamic seat, and with the aid of gravity, allowing the body to lower towards the floor whereupon the legs will be in a squatting position. With the aid of the weights, the thigh and gluteus muscles lift the seated body to its starting sitting position.

The invention discloses a leg muscle trainer. The leg muscle trainer comprises three parts, including a leg placing frame part, a power damping cylinder part and a base part, wherein the leg placing frame part is rotatably connected onto the base part; the power damping cylinder part is mounted in the base part and is connected with the leg placing frame part; the leg placing frame part is matched with the power damping cylinder part; and the power damping cylinder part provides power to the leg placing frame part. The leg muscle trainer disclosed by the invention can be used for recovery training of gynecologic patients and can also be used for rehabilitation training of leg muscles of patients with leg muscle weakness and atrophy, caused by various types of diseases, and training of quadriceps femoris muscle of people who cannot do knee joint motion; and the leg muscle trainer has a rapid rehabilitation effect, does not need to consume physical strength of doctors, is suitable for early-period rehabilitation training and moving tendency of a human body, and has a good comfort feeling.

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”.

An apparatus and a first method of the invention for stretching a user's leg muscles, the apparatus comprising a rocker device having an arcuately shaped lower rocking surface for rocking motion on a generally flat surface and an upper platform surface having a recess for receiving a user's knee in a bent condition of the user's leg for stretching the user's quadriceps upon rocking motion, and the first method comprising the steps of: (a) resting the lower rocking surface on a generally flat surface; (b) placing a user's knee in a bent condition in the recess of the upper platform surface; and (c) rocking the apparatus forwards using the user's knee in the recess to guide the rocking motion of the rocker device for stretching the quadriceps. The apparatus is alternatively positionable in a second position for stretching the hamstring and calf muscles using a second method of the invention.

The invention discloses a quadriceps femoris rehabilitation training bed, and relates to the field of medical devices. The quadriceps femoris rehabilitation training bed includes a bed body, two flexion and extension mechanisms, two foot posture adjustment mechanisms, two guideways, two driving mechanisms and a controller. Each flexion and extension mechanism comprises a thigh support component and a crus support component, wherein one end of the thigh support component is articulated with a fixed support base connected with the bed body, the other end of the thigh support component is articulated with the end of the crus support component, the lower portion of the other end of the crus support component is articulated with a slider, and each slider can slide on the corresponding guide rail. The ends, away from the thigh support components, of the crus support components are provided with the foot posture adjustment mechanisms, and the ends, away from the crus support components, of the thigh support components are connected with the driving mechanisms which can drive the thigh support components to do reciprocating motion up and down, and the driving mechanisms are controlled by the controller. Through the combination of the quadriceps femoris rehabilitation training bed and active and passive rehabilitation strategies, quadriceps strength regeneration is effectively stimulated, the required driving force is reduced, and the flexibility of use is improved.

The invention provides a human body body hip modeling and simulation method based on muscle groups, and relates to the human body hip modeling and simulation method based on the muscle groups. The object of the method is to solve the problem that existing human hip models cannot take into account refined human body structures and finite element simulation implementing, and the human body hip modeling and simulation method based on the muscle groups is provided. The method comprises the steps of first, acquiring human hip image data; second, conducting geometric modeling on human hip, which includes geometric three-dimensional reconstruction of hip bone (cortical bone and cancellous bone), thigh bone (cortical bone and cancellous bone), articular cartilage, sartorius muscle, musculi quadriceps femoris, biceps femoris, semitendinosus, semimembranosus, gracilis, phalanges, long adductors, short adductors, adductor muscles, gluteus maximus, gluteus medius, gluteus maximus and entire hip; third, establishing muscle group models, conducting model assembly on the hip bone, the thigh bone, the articular cartilage, the muscle groups and the whole hip, establishing a fat and skin model, andadding tendon; fourth, determining meshing parameters, determining inter-tissue contact relationship, and implementing the meshing of the geometric models; fifth, attaching materials to the structureof each part of the human hip model, and determining the material parameters; sixth, achieving mechanical simulation of the human hip model. The method is used in the field of biomedical engineering.

The invention relates to a knee joint dynamic simulation device. The device comprises a hip joint simulation module, a thigh simulation module and a foot fixation module; the hip joint simulation module comprises a weight simulation block, a hip joint vertical sliding pair and a hip joint rotating pair, and is used for simulating the change of the center of gravity of squatting of a human body andhip joint movement; the thigh simulation model comprises a simulated bone plate, a quadriceps femoris connecting part and hamstring muscle connecting part, fixes specimen leg thighbone and is connected with tendons pulling the quadriceps femoris and the hamstring muscle, and is used for simulating the action of the thigh muscle in the squatting process; the foot fixation module is used for fixingthe foot of the specimen leg. By means of the weight simulation block, the device can move under the action of the gravity to bend the knee joint of the specimen leg to reproduce the movement state of the knee joint of the specimen leg, and dynamic simulation of the knee joint is completed.

The invention discloses an intelligent knee osteoarthritis correction integrated instrument, which comprises a thigh holder, a hinge, a shank holder and a sleeve sock, wherein the thigh holder is connected with the shank holder through the hinge, and a small low-frequency pulse electr-therapeutic apparatus is arranged in the middle of the thigh holder; a small ultra-short wave therapeutic apparatus is arranged in the middle of the hinge, and a central control management device is arranged in the middle of the shank holder; the lower edge of the shank holder is connected with the upper edge ofthe sleeve sock, and the sleeve sock adopts a double layer structure; an optical plantar pressure detector is arranged in the plantar interlayer of the sleeve sock. The intelligent knee osteoarthritiscorrection integrated instrument disclosed by the invention determines whether the gait of a patient is abnormal by the optical plantar pressure detector, thereby timely, effectively and dynamicallyalleviating burdens and correcting, and the quadriceps femoris is exercised to improve the knee joint by adopting a quadriceps femoris extensor training and neuromuscular electrical stimulation method, and the inflammation in the knee joint is alleviated by an ultra-short wave therapeutic apparatus, so that the deformed force line is corrected on the basis of eliminating the inflammation of the knee joint, thereby achieving the true correction and therapy double standard.

The invention discloses a muscle force measuring platform which comprisies a base which is horizontally arranged, wherein the base is vertically provided with an upright and a seat which can regulate height and longitudinal position, the left side and the right side of the seat are respectively provided with a bottom part used for being fixed on handrail on the base, the rear part of the seat is provided with a back rest which can regulate angle in a stepless way, the top of the upright is provided with a control panel with induction, processing, displaying and printing functions, and the upright and the base are internally provided with a force measuring mechanism connected with the control panel. A conner sits and lies on the seat, the force measuring mechanism can accurately test muscle groups of a human body such as gluteus maximus, triceps surae muscle, tibialis anterior, musculus biceps brachii, musculus triceps brachii, brawn, back muscle, quadriceps femoris muscle, pectoralis major muscle, latissimus dorsi muscle, abdominal muscle and the like, data can be recorded and processed in real time by virtue of an inductor of the control panel and a computer, and the test result can be displayed and printed out.

The invention discloses an improvement of ant-rotating shoes. Two side wing plates of each anti-rotating shoe and the sole are combined into together, therefore, the stability is increased, and the unsoundness of the traditional heel nailed by wood plates is avoided. The soft upper and the hollow shoe insole can avoid the part in contact with feet generating sore, increase the comfort, and have the heat insulation function. The toes can not be covered by the upper and can expose out of the upper, thereby being convenient to observe the blood circulation of the toes. The overlapping length of the left upper and the right upper can be freely adjusted according to the size and fatness of the feet, therefore, the upper and the foot surface can be meshed. The invention has wide application, can be applied to patients with fracture accompanied by neurologic damage, patients in ankle joint fracture recovery period, paraplegics, patients in long-term sickbed, patients before and after artificial hip joint operation, and comas, can prevent foot drop, foot internal rotation and foot external rotation, has no influence on the sufficient motion of quadriceps femoris or ankle joint, prevent joint stiffness and muscular dystrophy, and performs active function on increasing the muscle force.

My invention pertains to a portable fitness apparatus that allows you to add numerous exercises to your back workout routine with the use of different angles while maintaining lesser points of body contact compared to modern gym back machines. The benefit having lesser points of body contact while using this apparatus is that you burn more calories compared to a modern gym back machine, primarily because you voluntary engage your back muscles as your primary target while involuntary engaging core muscles and quadriceps as your secondary target within the same movement. This apparatus is unique because nothing like this exists in the fitness industry. It is easily assembled, disassembled and light weight so you can take it anywhere. This invention creates a constant tension on your core muscles and quadriceps while working your back muscles, which allow you to burn more calories during your regular exercise movement, and all within the same time frame.

The invention relates to a force measuring seat for leg muscles, and belongs to the technical field of medical devices. The force measuring seat includes a seat body and a pedalling force measuring device; the pedalling force measuring device includes two pedalling force measuring assemblies; two pedalling force measuring assemblies are fixed on the seat body side by side. Each pedalling force measuring assembly includes a support part, a dynamometer and a pedal plate; the support parts are fixed with chair legs of the seat body; the dynamometers are inclinedly arranged on the support parts; the pedal plates are fixed with the movable ends of the dynamometers and used for cooperating with feet. The force measuring seat is mainly used for measuring the aging degree of leg muscles of the elderly. A tested person sits on the seat body, feet pedal on the pedal plates, and the pedal plates push the movable ends of the dynamometers to move, so that the dynamometers can accurately measure thevalue of the pedalling force, and then quantitatively study quadriceps femoris and other muscles. The measurement method is simple and convenient, the measurement results are intuitive, the aging degree of the leg muscles of the elderly is judged according to the measurement results, and the basis is provided for the follow-up research or treatment.

The present invention relates to an exercise apparatus for exercising muscle groups in a person's legs by stretching and / or retraction, which exercise apparatus comprises at least a first frame and at least a first foot platform which foot platform is rotatable fastened to a hearing, which hearing is placed in relation to the person's foot for exercise at least plantar flexion and / or dorsal flexion, which exercise apparatus further includes a leg support. Hereby can be achieved exercising of the muscle groups by stretching and / or retraction (quadriceps lemons, 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.

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.

In the method of performing a modified intervastus approach in total knee arthroplasty procedures, a straight incision is initially made in a patient's knee. The incision is located medial to a midline of the patient's knee, in line with the medial border of the tibial tubercle distally extending proximal to the patient's patella. Fascia overlying a lateral edge of the patient's vastus medialis is then incised at a point where the patient's vastus medialis meets the patient's quadriceps tendon. The patient's vastus medialis is separated from the patient's quadriceps tendon and the patient's vastus medialis is elevated off of an underlying capsule. The underlying capsule is incised from a cephalad end to a caudal end thereof, extending medial to the patient's patella.

The invention relates to equipment for judging falling down of old people. The equipment comprises an electroencephalogram sensor, a myoelectricity sensor, a gyroscope and a pressure sensor which are connected with a central control chip, the electroencephalogram sensor is used for receiving electroencephalogram signals of a user, the myoelectricity sensor is used for receiving surface myoelectricity signals of upper humerus and quadriceps femoris muscles of the user, and the pressure sensor is used for receiving pressure signals of the outer sides of arms and thighs of the user; the central control chip is used for receiving and processing signals of the electroencephalogram sensor, the myoelectricity sensor and the pressure sensor and judging whether the user falls down or not. According to the equipment and the method, multiple sensors can be combined with multiple data for analysis, and the situation that a user tends to fall down but stands stably or falls down due to misjudgment is avoided.

A device in particular for use in the field of sport practice and body-building, for a person's muscular exercise. The device enables the development of quadriceps and of the gluteal muscles and comprises a support surface for the feet and elements for applying a force of resistance to the movements of the person's legs to shift from a bent position to an extending position by unfolding the knees. The force applying elements comprise a harness pressing on the upper side of the thighs. The invention is applicable to the manufacture of body-building machine.

The invention relates to the technical field of medical treatment, and discloses a progressive increase type resistance sports apparatus in dialysis. The sports apparatus comprises a bottom plate, andthe upper side surface of the bottom plate is fixedly connected with a fixed plate. According to the progressive increase type resistance sports apparatus in dialysis, a balancing weight with the proper weight is pulled upwards through a bottom plate, a fixed plate, a middle binding belt, two first bearing ropes, two middle limiting rings, two middle guide grooves, two upper connecting shafts, two lower connecting shafts, two upper guide wheels, and two lower guide wheels; two connecting columns and two clamping rods enable the balancing weight with the proper weight to be pulled upwards, sothat the quadriceps femoris muscle and the lumbar iliac muscle of the user can be exercised; therefore, the invention solves the problems that no resistance exercise instrument used for dialysis treatment of a maintainable hemodialysis patient exists at present, and then absolute braking of the upper limb of the internal arteriovenous fistula side of the maintainable hemodialysis patient in the treatment process is achieved; and diversified resistance training is provided for the lower limbs to improve the fitness of the muscles of the lower limbs, so most patients needing to be exercised do not have proper exercising equipment for convenient use at present.

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.