42 results about "Leg length" patented technology

Methods include tracking one or more of a leg length or an offset in a patient during a total hip arthroplasty (THA) procedure performed using a navigated surgical system, with an expandable trial femoral assembly. Certain methods include registering a pelvis of the patient to the navigated surgical system; and in various embodiments measuring a leg length or registering a femur to the navigated surgical system. An expandable trial femoral assembly is affixed to a prepared and broached femur of the patient; and the expandable trial femoral assembly is reduced into an acetabular prosthesis. A navigated driver may then be used to adjust an expansion extent of the expandable trial femoral assembly. The navigated surgical system may measure the leg length and the offset in the patient based on the movement of a reference element of the femur relative to a reference element of the pelvis.

A hip navigation system is provided that includes a navigation device comprising one or more sensors configured to sense changes in orientation and rotation, a reference sensor device comprising one or more sensors configured to sense changes in orientation and rotation, and a femur sensor device comprising one or more sensors configured to sense changes in orientation and rotation. The hip navigation system is provided for navigating a cup toward target angles. The hip navigation system is provided for determining changes in leg length and / or joint offset. Methods of using the hip navigation system are provided. A graphical user interface of the navigation device is provided.

The utility model provides a deep squat training device, and aims to solve the problems that the height of a knee support on a deep squat training device in the prior art is fixed and cannot be adjusted, and the deep squat training device cannot adapt to people with different leg lengths. A deep squat training device comprises a main support; the foot support is arranged on the main bracket; the knee support is arranged on the main support and located on the upper side of the foot support, and a height adjusting assembly used for adjusting the height of the knee support is arranged on the main support; the knee support is hinged to the main support, the hip support is hinged to the main support and located on the upper side of the knee support, a damping piece is arranged between the hip support and the main support, and when the hip support is driven by external force to swing anticlockwise relative to the main support, the damping piece is used for applying elastic resistance to the hip support so that the hip support can turn over clockwise to reset. The height of the knee support on the main support is adjusted through the height adjusting assembly, and the knee support can adapt to users with different leg lengths and heights by adjusting the height of the knee support.

The invention discloses a stretching assisting device for physical exercise. The stretching assisting device comprises a base, a driving mechanism and an adjusting mechanism. The left side of the upper end of the base is provided with a fixing seat, the upper end of the fixing seat is provided with a seat, the front side and the rear side of the upper end of the base are rotationally connected with vertical rods through bearings, the middles of the outer arc surfaces of the vertical rods are provided with fixing plates, the right sides of the outer arc surfaces of the fixing plates are provided with mounting plates, and the right side of the upper end of the base is provided with a fixing frame; the driving mechanism is arranged in the fixing frame, the position of the foot containing base can be adjusted according to the leg length of a user, meanwhile, self-locking can be achieved through a lead screw structure after the position of the foot containing base is adjusted, the ankles of the user can be driven to rotate through a mounting rod, and the device is convenient to use. The adjusting amplitude is small, the whole process can be independently completed, and the using effect of the stretching assisting device for physical exercise is further improved.

A mechanical measuring device for simple, reproducible and accurate measurement of leg length differences, characterized by the fact that a measuring table in conjunction with two "foot supports" enables centimeter / millimeter accurate measurement of the difference in leg lengths without further aids and without further radiation exposure of the patients.

Systems and methods receive pre-operative, volume data for a patient's pelvis and a femur. A three-dimensional (3D) model is generated of the patient's pelvis and femur. A hologram of the patient's native hip is generated from the 3D model. The patient's pelvis is registered relative to a pelvic coordinate system. The hologram is displayed and the patient is aligned with the hologram. The 3D coordinates of a selected point on the femur is determined relative to the pelvic coordinate system. Following implantation of prosthetic hip components, the hologram of the patient's native hip is displayed again and the patient is aligned with the hologram. The 3D coordinates of the selected point on the patient's femur are again determined. One or more changes to leg length, offset, or Anterior-Posterior (AP) position are determined based on the two 3D coordinates determined for the selected point. The one or more changes to leg length, offset, or Anterior-Posterior (AP) position are displayed

The invention belongs to the technical field of medical instruments, and particularly relates to an orthopedic traction device which comprises a bed body, an upper body adjusting mechanism, a leg adjusting mechanism, a knee supporting mechanism and a foot fixing mechanism, the upper body adjusting mechanism is arranged on the bed body, the leg adjusting mechanism is arranged on the side wall of the bed body, the knee supporting mechanism is arranged on the leg adjusting mechanism, and the foot fixing mechanism is arranged on the side wall of the bed body. And the foot fixing mechanism is arranged on the leg adjusting mechanism. The upper body adjusting mechanism is linked with the transmission part, the upper body of a patient is rapidly limited and fixed, and the problem that fixing operation is tedious is solved; a knee supporting mechanism is introduced, leg stretching and bending actions of the patient are completed on the premise that the treatment space is not occupied, and the posture adjusting process is simplified; the leg adjusting mechanism can quantitatively adapt to the leg length of the patient, flexibly adapt to different figures, and overcome the difficulty in adaptation; the leg adjusting mechanism and the knee supporting mechanism cooperate to achieve self-adaptive adjustment of the leg posture, it is guaranteed that the supporting position is accurate, and the working efficiency is improved.

The knee joint rehabilitation training device comprises a seat, a motor and a training device, the seat comprises a seat body, armrests and supporting legs, the seat body is provided with a sliding rail, the motor comprises a hydraulic rod and a telescopic machine, one end of the hydraulic rod is connected with the training device, the other end of the hydraulic rod is connected with the telescopic machine, and the end, connected with the telescopic machine, of the hydraulic rod is provided with a cylindrical protrusion. The training device comprises bandages, massagers, a sliding rod and pedals, the training device is in an arc shape and is provided with an outward opening, the bandage A is located on the upper portion of the training device, the bandage B is located on the lower portion of the training device, the massagers are evenly distributed on the outer surface of the training device, the sliding rod is arranged at the lower end of the training device, and the pedals are arranged on the sliding rod. A pedal is arranged at the lower end of the sliding rod. The knee joint training device is simple in structure, a patient can adjust the length suitable for the patient according to the height and leg length of the patient, meanwhile, the training strength can be adjusted, left and right knee joints can move independently, and wearing is very convenient.

The invention relates to the field of medical auxiliary instruments, in particular to a prone position multifunctional body frame for radiotherapy, which comprises a bottom plate, a first radiation port is formed in the surface of the bottom plate, a shank support, a thigh support, an abdomen support and an upper limb support are sequentially mounted at the top end of the bottom plate along the length direction of the bottom plate, and a suspension assembly is mounted between the abdomen support and the upper limb support; a sliding groove is formed in the side, close to the shank support, of the abdomen support. The thigh support is in sliding fit with the inner wall of the sliding groove. Fixing knobs are symmetrically connected to the two sides of the thigh support in a threaded mode, a plurality of fixing holes corresponding to the fixing knobs are symmetrically formed in the top end of the bottom plate, and the fixing knobs are all in threaded connection with the fixing holes. Through the sliding fit of the thigh support and the abdomen support and the adjustable design of the fixing knob, the supporting distance can be flexibly adjusted according to the leg length of the patient, the problems that the legs of the patient with the long legs are suspended, and the thighs make rigid contact with the edges of the supporting seats are solved, and the comfort degree of the patient during positioning is improved.

This invention relates to an arm and leg massager, comprising a slide cylinder (1), a massage device, a track device, a power and transmission device, an end ring (23), a base plate (25), and a control device. Four massage balls (5) simultaneously massage different parts around the arm or leg, applying both pressure and pushing / pulling; the arm or leg may vary in thickness, but the massage balls (5) can contact all parts of the arm or leg; people may vary in weight, but the massage balls (5) can contact the arms or legs of different people; the arm or leg length may vary, but the massage balls (5) can massage the entire arm or leg of different people; the massage pressure can be adjusted to meet the needs of different people; the slide cylinder (1) automatically rotates; the motor (16) operates at a safe voltage, eliminating the risk of electric shock; mechanical massage replaces manual massage, allowing non-paralyzed individuals to perform massage independently without assistance; and for paralyzed individuals, massage greatly reduces the labor intensity of the operator.

The present application relates to the technical field of massage chair, and proposes a linkage adjustment massage chair, which comprises a riding part, a supporting part and a connecting shaft, wherein the riding part comprises a seat mechanism and a leg support mechanism, and is used for user riding and adjusting posture; the supporting part comprises a main pulley mechanism, a secondary support mechanism, a transmission mechanism and the connecting shaft, and is used for supporting the riding part and controlling the locking state of the riding part; the left end of the seat mechanism is fixedly installed with the leg support mechanism, the inner lower part of the seat mechanism is fixedly installed with the transmission mechanism, and the lower end of the seat mechanism is fixedly installed with the secondary support mechanism; the left middle part of the rotary support frame is provided with a leg lifting connecting rod, and the right middle part of the leg lifting connecting rod is rotationally connected with a linear motor two. Through the cooperation of the seat mechanism and the leg support mechanism, the user can stretch the leg length and increase the leg support area while lifting the leg when adjusting from the sitting posture to the lying state, so that the user can obtain a better experience.

The application relates to the technical field of knee ligament repair, in particular to a knee ligament repair operation platform, which comprises a base, a repair device, a muscle exercise device and a fixing and adjusting device, one side of the base is provided with the repair device, one side of the repair device is provided with the muscle exercise device, the other side of the repair device is provided with the fixing and adjusting device, the muscle exercise device and the fixing and adjusting device are arranged on one side of the base, the repair device comprises a rotating plate, a fixing body and an adjusting body, one side of the rotating plate is rotationally connected with the base, and one end of the rotating plate is rotationally connected with the fixing body; in the application, the position of the push plate can be conveniently adjusted through the push plate, the upper adjusting block, the lower adjusting block, the connecting rod, the top plate, the second spring, the clamping plate, the clamping wheel, the double-shaft elastic rod and the positioning plate; the node of rotation can be conveniently adjusted according to the leg length of a patient; and the knee ligament repair operation platform has better use effect.

The utility model discloses a massage mechanism of a massage chair self-adaptive to leg lengths. The massage mechanism aims at solving the problem that a traditional massage chair cannot be self-adaptive to users with different leg lengths. The device comprises a foot massage mechanism, a leg massage mechanism, a slidable telescopic mechanism, an air bag, a foot in-place sensor, a leg in-place sensor, an intelligent controller and an electromagnetic reversing valve. Whether the feet and the legs of a user are in place or not is detected through the sensors, the intelligent controller controls the electromagnetic reversing valves according to feedback signals, inflation and deflation of the air bags are achieved, and the relative distance between the two massage mechanisms is adjusted to adapt to different leg lengths.

The leg strength training device comprises a bottom plate and an adjusting assembly, the upper surface of the bottom plate is fixedly connected with a weight sensor, the adjusting assembly comprises a fixing rod, a motor, a threaded rod, a first sliding block and a first supporting column, and the upper surface of the weight sensor is fixedly connected with the fixing rod; a first groove is formed in a fixing rod, a motor is fixedly connected to the left surface of the fixing rod, and the upper surface of a first sliding block is fixedly connected with a first supporting column, the device can adjust the use position of a training roller according to trainees with different leg lengths, so that the trainees can keep correct training postures for training; by means of the leg training device, the risk of injury in the training process is reduced, the legs can be massaged after leg training, blood circulation of leg muscles is promoted, the degree of muscular soreness is relieved, and a trainee can recover from the fatigue state more quickly.

1. Name of the product in this design: Automatic Human Body Measurement Device. 2. Application of this design: For self-adhesive measurement of human peripheral data, automatic measurement of leg length differences, and automatic measurement of shoulder height differences. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The utility model provides a leg training device which comprises a first base, a sliding rail which transversely extends is connected to the first base, a fixed leg support is fixedly connected to one end of the sliding rail, and a movable leg support is further connected to the sliding rail in a sliding mode. The first base is further connected with a supporting rod extending vertically, the supporting rod is connected with a pulley block, a steel wire rope penetrates through the pulley block, one end of the steel wire rope is connected with a weight bearing block, and a foot sleeve is hung at the other end of the steel wire rope. By means of the training device, a practicer can complete training of a volley horse and splitting and hanging legs according to the basic conditions of the practicer. The training device is easy and convenient to use and reasonable in structural design, the weight can be adjusted according to the conditions of practitioners to carry out leg splitting and hanging training, the training device can be suitable for practitioners with different heights and leg lengths to complete leg splitting and hanging action training of a volley straight horse and traditional martial arts, and therefore the core strength and flexibility of the legs are comprehensively trained.

The invention relates to the technical field of rehabilitation training instruments, in particular to a support for preventing knee hyperextension and a matched training device, and aims to solve the problems that a hemiplegic patient is prone to knee hyperextension and single in equipment function in rehabilitation training, the support comprises a bottom frame and a thigh fixing frame, rotating connection is achieved through a connecting part, and knee hyperextension is prevented through a limiting part. The matched training device comprises a pedal, a supporting pipe, a butt joint frame and a resistance component, reverse resistance is provided for training leg muscles, a connecting component and a limiting component are adjustable, the requirements of patients with different leg lengths are met, the supporting component assists the patients in sitting and repeated standing training, the training safety and effectiveness are improved, and the training efficiency is improved. Body adjusting supporting and muscle training are provided during initial training of a hemiplegic patient, knee hyperextension is prevented, the opening and closing angles of thighs and shanks are stably limited during later walking training, the requirements of different stages are met, and rehabilitation of the patient is assisted.

The utility model relates to the technical field of auxiliary treatment of knee osteoarthritis, and discloses a brace for auxiliary treatment of knee osteoarthritis, which comprises a knee joint protector and a rotating frame, and the left end and the right end of the knee joint protector are fixedly connected with fixing snap rings. By arranging the two binding belts, after a user wears the leg, the binding belts are matched to bind the position of the leg, and when the length positions of the legs of the user are different, the binding belts are pulled to drive the extending sliding rod to extend and slide in the fixing sleeve, so that the leg length position of the user is adjusted. The length of the device can be conveniently adjusted according to the leg length of a user, when the user wears the device for use, rehabilitation training of the user is easily affected due to the fact that the constraint feeling is high when the user just starts to wear the device, movement is inconvenient, bumping is generated, and the device is worthy of popularization and application. And after the protective base plate is mounted in the fixed clamping ring and the positioning groove, the phenomenon that the knees collide with table corners or objects with edges and corners is reduced.

This utility model discloses a childbirth support frame, including two support frames arranged front and back. Each support frame has a fixed plate at its left end, a reinforcing bracket in its middle, and a foot pedal at its right end. It also includes a knee support mechanism. The knee support mechanism comprises an adjustable shell, a support plate, and a silicone pad. The adjustable shell is slidably connected to the middle of the support frame. Support plates are vertically slidably connected to the opposite inner surfaces of the two adjustable shells, and silicone pads are provided on the opposite inner surfaces of the two support plates. This childbirth support frame provides knee support for the mother through adjustable support plates. Compared to a single support frame for the mother's feet, it increases the support points for the mother's legs, reduces fatigue caused by prolonged foot support during childbirth, and better assists mothers of different leg lengths during delivery.

The utility model belongs to the field of medical instruments, particularly relates to an auxiliary device for delivery, and aims to solve the problems that an existing delivery bed often lacks necessary adjusting functions, cannot be individually adjusted according to individual differences of pregnant women, and is insufficient in dirt receiving and supporting aspects, and the following scheme is provided: the auxiliary device for delivery comprises a delivery bed, a lying plate is fixedly connected to one side of the top of the delivery bed, an arc-shaped hole is formed in one side of the delivery bed, two rectangular holes are symmetrically formed in the top of the delivery bed, and the two rectangular holes are located in one side of the lying plate. And personalized support for the buttocks and legs of the pregnant woman is realized. By adjusting the height of the limiting strip-shaped rod and the angle of the supporting plate, the device can adapt to pregnant women with different heights and leg lengths, a more comfortable delivery body position is provided, pains of the pregnant women are relieved, and smooth delivery is promoted.

The utility model relates to an anti-dislocation limiting device used after hip replacement, which comprises a left sponge, a right sponge, a left limiting mechanism arranged on the left sponge and a right limiting mechanism arranged on the right sponge, the left limiting mechanism comprises an arc-shaped cavity formed in the left sponge, a rotating shaft fixedly arranged on one side of the left sponge, an arc-shaped plate with one end rotationally arranged on the rotating shaft, an arc-shaped limiting plate fixedly arranged at the other end of the arc-shaped plate, a first limiting hole formed in the arc-shaped limiting plate and a plurality of second limiting holes formed in the left sponge. The limiting rod is movably arranged on the left sponge, and the binding assembly is arranged on the left sponge; the left limiting mechanism and the right limiting mechanism are the same in structure. By using the limiting device, patients with different leg lengths can be better adapted, and the limiting effect and the comfort of the patients are improved.

A limb compression device, such as for compressing at least part of an arm or leg, has an adjustable length, with part of the device configured to fold over to reduce the total length of the boot. The compression device may have multiple bladders, for selectively providing compression to different parts of a user's limb. There may be a gap between adjacent of the bladders, allowing folding of an end part of the device over a central part, to selectively reduce length of the limb compression device. The adjustable length of the compression device may facilitate its versatility in accommodating users of various sizes (leg lengths), and may provide an advantage to retailers (for example) in reducing the need to maintain an inventory of different sizes.

Various implementations include a prosthetic knee device. The prosthetic knee device includes a thigh portion. The prosthetic knee device includes an upper shank portion. The thigh portion is rotatable relative to the upper shank portion. The prosthetic knee device includes a lower shank portion translationally movable relative to the upper shank portion. Rotation of the thigh portion relative to the upper shank portion causes translational movement of the lower shank portion relative to the upper shank portion.

The utility model discloses an adjustable supporting structure for leg nursing. The adjustable supporting structure comprises a leg supporting frame base and a supporting rod shell. Through cooperative use of a positioning device, a positioning clamping plate, a stable clamping plate shell, a spring and a positioning clamping groove, the problem that an existing leg supporting frame is equipment for orthopedic treatment and rehabilitation and is mainly used for supporting and fixing the legs of a patient to provide a stable operation environment and an accurate treatment effect is solved, and according to different heights and lengths of the legs of the patient, the leg supporting frame can be used for supporting and fixing the legs of the patient. The height of a leg supporting frame needs to be adjusted, a bolt adjustment mode is usually adopted, the problem of insufficient stability possibly exists in bolt adjustment, the leg supporting frame possibly shakes or displaces when a patient adjusts the posture, the treatment effect is affected, a bolt needs to be adjusted through a tool, operation is relatively complex, and the burden of workers is increased. However, an existing leg supporting frame for traditional Chinese medicine leg nursing is not provided with a component for conveniently adjusting the height of a frame body.

This utility model discloses a lower limb massage device, comprising: a fixed frame; a foot rest that slides with the fixed frame along the leg length direction; a first telescopic adjustment mechanism installed between the fixed frame and the foot rest to drive the foot rest to slide relative to the fixed frame; a leg rest that can slide relative to the foot rest along the leg length direction is installed on the foot rest, and a second telescopic adjustment mechanism is installed between the two to drive the leg rest to slide relative to the foot rest. The leg rest of this application has a large range of motion, which can better adapt to the needs of users with different leg lengths. This application also provides a massage chair.

The utility model provides a multifunctional comfortable quadriceps femoris exercise equipment relates to quadriceps femoris exercise equipment technical field, including bottom case, seat and backrest, one side of seat is symmetrically fixed with fixed plate, the inner side of fixed plate is fixed with fixed rod, the top of fixed rod is evenly opened with spacing hole. The pull rod is pulled upwards, the pull rod moves to drive the limiting rod to synchronously ascend in the C-shaped frame, the fixing block on the outer wall of the limiting rod compresses the first spring, the first spring moves upwards along with the limiting rod and is separated from the current limiting hole and the insertion hole, a user can freely slide the sliding sleeve left and right according to the leg length of the user, and when the sliding sleeve reaches a proper position, the user can move the sliding sleeve left and right. After the pull rod is loosened, the limiting rod is inserted into the corresponding limiting hole and the inserting hole again under the elastic action of deformation recovery of the first spring, so that the sliding sleeve is firmly fixed to a new position, the use position of the load column is adjusted, the leg length difference of different users is met, and the comfortable experience during exercise is ensured.

The utility model relates to an adjustable lower limb trauma first-aid brace with air bags, which comprises a shell assembly made of hard plastic and an air bag assembly. The shell assembly comprises a hip shell, a thigh shell, a calf shell and a connecting assembly. The thigh shell is in the shape of a U-shaped cylinder, with one end connected to the hip shell and the other end connected to the calf shell through the connecting assembly. The connecting assembly comprises two curved plates and locking screws. The curved plates are symmetrically inserted into the thigh shell and the calf shell. The locking screws are screwed into the thigh shell / calf shell and abut against the end of the curved plates. The air bag assembly comprises a plurality of strip-shaped air bags that are connected to each other. The strip-shaped air bags are attached to the hip shell, the thigh shell and the calf shell, respectively. The utility model is suitable for cases where the hip or the thigh is injured. The curved plates and the locking screws are matched to adapt to the leg length of the patient. The curved angle of the curved plates allows the thigh shell and the calf shell to form a comfortable angle for the patient, thereby reducing the pain of the patient and making the utility model suitable for first-aid.

The utility model discloses an auxiliary cruciate ligament injury rehabilitation brace, and relates to the technical field of rehabilitation protectors. Comprising angle adjusting discs, the two angle adjusting discs are arranged front and back, first supporting plates are arranged at the positions, close to the upper sides, of the opposite side faces of the front angle adjusting disc and the back angle adjusting disc, and upper protection plates are installed at the ends, away from the angle adjusting discs, of the first supporting plates through first adjusting mechanisms; first protection mechanisms are arranged on the opposite side faces of the front and rear upper protection plates, first binding mechanisms are arranged between the upper protection plates and close to the upper and lower positions, and pedometers are arranged in the middles of the rear side faces of the upper protection plates; the upper and lower positions of the upper protection plate and the lower protection plate can be adjusted, so that the use of people with various leg lengths can be met, the binding force can be visually checked, the binding force is moderate, the supporting effect is better, the rehabilitation training is facilitated, meanwhile, the counting function is added, and the practicability is high.

A massaging machine (1) comprises: a leg supporting section (20) for supporting left and right legs of a subject; a left leg length detecting section (27A) for detecting left leg length information; a right leg length detecting section (27B) for detecting right leg length information; and a control section (19) for executing a leg length detecting mode for comparing the left leg length information with the right leg length information to obtain leg length difference information.

A hip navigation system is provided that includes a navigation device comprising one or more sensors configured to sense changes in orientation and rotation, a reference sensor device comprising one or more sensors configured to sense changes in orientation and rotation, and a femur sensor device comprising one or more sensors configured to sense changes in orientation and rotation. The hip navigation system is provided for navigating a cup toward target angles. The hip navigation system is provided for determining changes in leg length and / or joint offset. Methods of using the hip navigation system are provided. A graphical user interface of the navigation device is provided.