85 results about "Leg length" patented technology

The invention discloses an adjustable positioning module, a knee joint replacement positioning platform and a knee joint replacement positioning method.The adjustable positioning module comprises a positioning table; the first supporting plate is used for supporting the upper body of the human body; the second supporting plate is used for supporting the legs of the human body, and the second supporting plate is in an inverted V shape; the third supporting plate is used for supporting the feet of the human body; the first supporting plate is obliquely and slidably arranged on the positioning table, a first driving mechanism used for driving the first supporting plate to obliquely and linearly slide relative to the positioning table is arranged on the positioning table, the second supporting plate is horizontally and linearly slidably connected to the positioning table, and the third supporting plate is slidably arranged on the positioning table. The positioning table is provided with a second driving mechanism used for driving the third supporting plate to vertically and horizontally slide linearly relative to the positioning table. The knee joint osteotomy device can be suitable for patients with different leg lengths, knee joint replacement surgery is facilitated, and the convenience and accuracy of osteotomy operation can be improved.

The invention provides an acetabular cup angle and leg length offset measurement system in total hip replacement. A first inertial sensing module detects a first IMU quaternion of a target object; a second inertial sensing module detects second IMU quaternions of the three mark points of the target object and respective coordinates of the thighbone mark points of the target object before and after the replacement; a third inertial sensing module detects a third IMU quaternion of the acetabular cup of the target object; constructing a pelvic bone coordinate system through a calculation module according to the first IMU quaternion and the second IMU quaternion; according to the first IMU quaternion and the third IMU quaternion, the acetabular cup angle under the pelvic bone coordinate system is determined; and determining the leg length offset according to the respective coordinates of the femur mark points before and after the replacement. A plurality of inertial sensing modules are used for measuring and positioning by taking a specific mark point of a human body as a reference, the movement of the acetabular cup can be tracked, the angle of the acetabular cup can be calculated, and the leg length difference before and after an operation is calculated, so that the operation cost is effectively reduced, and the artificial joint implantation precision and the operation efficiency are improved.

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 relates to the technical field of medical instruments, in particular to an ankle pump exercise training device which comprises a pedal plate, adjusting shafts are movably installed at the left end and the right end of the pedal plate in a penetrating mode, a connecting assembly is jointly movably installed between the two adjusting shafts in a penetrating mode, and an elastic assembly is movably connected to the front end of the connecting assembly. And the lower end of the elastic component is fixedly connected with the lower inner wall surface of the pedal plate. According to the ankle pump exercise training device, the angle between the connecting assembly and the pedal can be adjusted through the arranged adjusting shaft, the ankle pump exercise training device adapts to leg lengths and exercise requirements of different users, it is guaranteed that the optimal training effect can be achieved when the users conduct ankle pump exercise, and meanwhile the ankle pump exercise training device is convenient to use. A force adjusting knob in the elastic assembly can adjust the elastic force of the elastic belt according to the rehabilitation process and the physical condition of the user, the training intensity is gradually increased, and the muscle strength and the joint flexibility are improved.

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 utility model relates to the technical field of fitness equipment, in particular to a leg bending trainer. The device comprises a base and a vertical pipe vertically arranged on one side of the base, a base plate is installed on the upper portion of the right side wall of the vertical pipe, bearing seats are symmetrically arranged on the front side and the rear side of the base plate respectively, a swing arm pipe is movably hinged between the two bearing seats through a rotating shaft arranged at the end of the inner end of the swing arm pipe, and a tail pipe is arranged at the bottom of the outer end of the swing arm pipe. A balance weight pipe is arranged in the middle of the surface of the swing arm pipe and is perpendicular to the swing arm pipe. The problems that in the prior art, placement is limited, and movement is not easy are effectively solved, the structural design is simple, small, exquisite, flexible, convenient and adjustable, corresponding angle adjustment can be carried out according to different leg lengths, leg lengths, leg thicknesses and leg thicknesses of different crowds so as to meet the requirements of various crowds, the use comfort degree is effectively improved, the universality of equipment is improved, and the practicability is high. Therefore, the technical problems in the prior art are solved.

The utility model discloses a horizontal rehabilitation device for heart disease, which comprises a base, an adjustably arranged pedal assembly arranged on one side of the base and a lying table arranged on the other side of the base, the pedal assembly comprises a support arranged on the base, a lapping plate is arranged on the support, and the lapping plate is arranged on the base. A connecting frame capable of adjusting the placing angle is hinged to the lapping plate, and a rotating wheel with a pedal plate is arranged on the connecting frame; a handheld assembly is further arranged on one side of the support and comprises a supporting frame arranged on the support and a traction belt assembly arranged on the supporting frame in an adjustable mode. The rotating wheels with the pedal plates are adjustably arranged to adapt to the leg length of a patient, the traction belt assembly is arranged to be matched with upper limb exercise of the patient, anaerobic exercise of muscle strength is facilitated, comprehensive recovery of the heart after an operation is facilitated, the structure is simple and compact, and use is flexible.

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 invention discloses a mechanism for exoskeleton leg adjustment, and relates to the technical field of exoskeleton leg adjustment, the mechanism comprises a pair of upper movable rods, the inner walls of the pair of upper movable rods are rotatably connected with lower movable rods, the outer walls of the lower movable rods are sleeved with movable sleeve frames, and telescopic adjustment mechanisms are arranged in the movable sleeve frames; binding adjusting mechanisms are arranged on the outer wall of the upper movable rod and the outer wall of the movable sleeve frame, a connecting block is fixedly connected to the bottom end of the movable sleeve frame, and a bearing shoe sole is arranged at the bottom of the connecting block. Meanwhile, in the flexion and extension movement process of the wearer, when the knees are bent and the thighs and the shanks do adaptive movement, the upper movable rod and the lower movable rod are driven to deflect more flexibly, the resistance brought by the movable sleeve frame is reduced, the flexion and extension movement of the wearer is more comfortable and convenient, and the auxiliary effect of the lower limb exoskeleton is enhanced.

A system and method configured to better identify patient-specific anatomical landmarks, measure anatomical parameters and features, and predict the patient's need for surgery within a predetermined time period. In some embodiments, the system and method is configured to predict the likelihood or risk that a patient will require total hip arthroplasty. In some embodiments, the present invention includes machine learning technology Some embodiments of the present invention include a first ML machine configured to received medical images as inputs and identify anatomical landmarks as outputs; a measurement module to measure joint space width, hip dysplasia angles, and / or leg length differential; and a second ML machine configured to receive the anatomical measurements and patient demographic data as inputs and produce a risk or likelihood that the patient will require surgery within a certain time frame.

The application provides a kind of based on deep learning's full hip joint postoperative leg length difference calculation method and system, it is related to medical technology field, can realize the accurate evaluation of the postoperative condition of the patient of full hip arthroplasty surgery, method includes: obtaining the hip image of the patient after hip arthroplasty surgery;Based on the target recognition network of deep learning, identify the bilateral femur region in hip image, ischium region, the first key point position located in bilateral femur region and the second key point position located in ischium region;According to the first key point position, second key point position and ischium region, determine the leg length difference of the patient's double legs.The system executes the method.The application is based on the hip image of the patient after hip arthroplasty surgery, calculates the leg length difference of the patient's double legs after hip arthroplasty surgery, and realizes the accurate evaluation of the recovery condition of the patient after hip arthroplasty surgery according to the leg length difference of the patient's double legs.

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.

A method of calculating leg length discrepancy of a patient including: receiving patient bone data associated with a lower body of the patient; identifying anatomical landmarks in the patient bone data; orienting a first proximal landmark and a second proximal landmark relative to each other and an origin in a coordinate system; aligning a first axis associated with a first femur and a second axis associated with a second femur with a longitudinal axis extending in a distal-proximal direction, wherein the first and second distal landmarks are adjusted according to the alignment of the first and second axes; calculating a distance between the first and second distal landmarks in the distal-proximal direction along the longitudinal axis; and displaying at least one of the distance or a portion of the patient bone data on a display screen.

The utility model provides a lower limb fracture wheelchair assist device which comprises a seat plate, the seat plate is movably connected with a first telescopic assembly through a first angle adjusting structure, and the seat plate is further movably connected with a second telescopic assembly through a second angle adjusting structure. The first telescopic assembly and the second telescopic assembly each comprise two first connecting pipes, two second connecting pipes and two third connecting pipes, wherein the two second connecting pipes are arranged in the first connecting pipes in a penetrating mode and are in sliding connection with the first connecting pipes, and the two third connecting pipes are arranged in the second connecting pipes in a penetrating mode and are in sliding connection with the second connecting pipes. The utility model has the beneficial effects that the lengths of the first telescopic component and the second telescopic component can be adjusted by adjusting the positions of the connecting pipes, so that people with various leg lengths can conveniently use the chair; through cooperation of a ratchet wheel and a pawl, the angle between the seat plate and the first telescopic assembly and the angle between the seat plate and the second telescopic assembly can be adjusted, and therefore a patient can select the comfortable angle to place the lower limbs during use.

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 relates to the technical field of exercise devices, and discloses a leg muscle exercise device which comprises a base, an exercise assembly is arranged on the base, installation grooves are formed in the positions, close to the four corners, of the lower end face of the base, installation boxes are arranged in the installation grooves, and installation cavities with downward openings are formed in the installation boxes. Opposite supporting plates are further arranged on the lower end face of the base, supporting rods are arranged on the supporting plates, opposite box bodies are arranged on the lower end face of the base, cavities are formed in the box bodies, and positioning assemblies are arranged in the cavities. By means of the structure, the position of the supporting rod after sliding is positioned through the positioning assembly, the base and the pedal plate can keep the adjusted height, and therefore the height of the pedal plate on the base can be adjusted according to the leg length of a patient; patients with different leg lengths can exercise the muscles of the legs through the pedal plate when sitting on the chair, and the practicability is good.

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.

1. The name of this design product: height and leg length measuring instrument. 2. Purpose of this product: This product is used to measure the height and leg length of a rider. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: Stereoscopic diagram 1.

The invention discloses a leg fixing system which comprises a base, a supporting rod, a foot support and a controller, the supporting rod comprises a supporting part, an electric push rod and a connecting part, the supporting part is used for supporting legs, the electric push rod is used for adjusting the height of the supporting rod, and the connecting part is connected with the base and can move relative to the base; a first driving device for driving the connecting part to move relative to the base is arranged between the connecting part and the base; the foot support comprises a containing space used for fixing the foot, the foot support can move relative to the base, and a second driving device used for driving the foot support to move relative to the base is arranged between the foot support and the base; the controller is configured to obtain leg length information and control the electric push rod to adjust the height of the supporting rod, the position of the supporting rod on the base and the position of the foot support on the base according to the leg length information. By arranging the leg fixing system, automatic determination of leg supporting postures and automatic placement of parts such as a supporting rod and a foot support are achieved, and dependence on experience of doctors is reduced.

The invention discloses a diabetic foot wound debridement adjusting and flushing device, belongs to the field of medical apparatuses and instruments, and solves the problems that an existing device is inconvenient to adjust, flushing fluid is easy to crossflow and the flushing range is limited. The device comprises a box body, a leg supporting mechanism, a driving mechanism, a flushing mechanism and a liquid baffle, wherein the leg supporting mechanism is adaptive to different leg lengths and postures through sliding of a top plate, rotation of a thigh placing groove plate and adjustment of a supporting plate; the driving mechanism realizes lifting of a supporting rod B and overturning of a mounting seat through synchronous transmission, and a threaded rod B in the flushing mechanism is combined to drive a flushing seat to linearly slide, so that a flushing head can be accurately positioned to any wound surface such as the sole and the instep; the liquid baffles are inserted into the two sides of the leg containing groove plate, notches of the liquid baffles are matched with the leg outline, and flushing liquid is effectively prevented from splashing. According to the device, personalized supporting and full wound covering are achieved through multi-dimensional adjustment, the infection risk is reduced through the liquid-proof design, the efficiency and safety of diabetic foot debridement are remarkably improved, and the device is suitable for flushing treatment in a clinical sitting posture or lying state.

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.