8 results about "Internal/external rotation" patented technology

An apparatus for assisting a user's upper limb movement, comprising: a humerus module and a shoulder module. The humerus module comprises: a first joint, a first drive source, a first cable and a second cable. The shoulder module comprises: a first rotating assembly and a first fixing device. The apparatus further comprises: a first support configured to align the first joint with a shoulder joint of the upper limb; and a second support connected between the humerus module and the shoulder module. The first joint is positioned in use to assist the user's humerus movement. The first drive source is connected to the first joint by the first cable and the second cable, and is for pulling the first cable and the second cable to transmit a force to the first joint to respectively elevate and depress the humerus. The first fixing device is for fixing the first rotating assembly to the upper limb. The first rotating assembly is configured to allow relative rotation between the second support and the first fixing device during internal / external rotation of the user's shoulder.

The utility model relates to medical rehabilitation appliance technical field discloses a shoulder joint abduction external rotation support, including support main part, the end face upper portion of support main part rear end is the first circular surface that the radius is R1 is protruding upwards, the end face upper portion of support main body front end is the second circular surface that the radius is R2 is protruding upwards, R2 is greater than R1, the upper surface of support main body is the continuous circular surface of smooth connection support main body front end and rear end, and the continuous circular surface forms the support curved surface that gradually inclines upwards from rear end to front end, and the upper portion of support surface forms the support space of supporting forearm, and under the synchronous action of support curved surface and support platform, the upper arm and forearm of user are kept in the set abduction external rotation angle, and the setting of upper surface is the continuous curved surface and has also improved the comfort of the upper arm of user and the contact part of support main body, and the backstop plate set up in the rear end of support platform can avoid the shoulder joint backward escape when user changes the posture and lead to the change of external rotation angle.

The application discloses a kind of measurement methods of knee joint tibia static front and rear displacement, belong to medical image technology field, acquisition patient MRI image data: using MRI equipment to scan patient knee joint, obtain MRI image data;Patient takes supine position, and places a custom pillow below popliteal fossa, to support knee joint in relaxed state in the posture of extension, external rotation 15 °;MRI scanning obtains magnetic resonance image data, including sagittal position, coronal position and axial position sequence.The turning point of Blumensaat line to femoral condyle and the relative position of tibial platform are used in the application to evaluate tibial static front and rear displacement.In MRI sagittal plane, the turning point divides tibial platform into two segments.The ratio of the length of the front segment of tibial platform to the length of tibial platform is defined as BT index.Using this method can more simply and effectively characterize and quantify knee joint tibial static front and rear displacement, to provide a more accurate measuring means for clinical work and related research.

FIELD: traumatology; orthopedics.SUBSTANCE: used for arthroscopy of the hip joint to eliminate Cam or combined types of femoroacetabular impingement. A proximal anterolateral port is created to the peripheral portion of the hip joint, which is used as a viewing port at the beginning of the operation; 4 cm distal and 2 cm lateral to the intersection of the midline of the femur and the perpendicular drawn to it through the apex of the greater trochanter, an anterior port is created, which is used as an instrumental port at the beginning of the operation. The deformation zone is brought to the bone burr, changing the positions of flexion and extension, internal and external rotation of the lower limb, and until the appearance of spring resistance of the fibers of the lateral joint capsule and the ileofemoral ligament, resection of excess bone mass of the anterior surface of the proximal femur within the boundaries of the Cam-deformation is performed. The viewing and instrument ports are changed and the deep fibers of the proximal joint capsule and the ileofemoral ligament are released from the acetabulum. In the presence of Pincer deformity, soft tissues are removed to visualize excess bone mass within the boundaries of the Pincer deformity, and resection of excess bone mass of the anterolateral edge of the acetabulum within the boundaries of the Pincer deformity is performed until radiographic visualization of the absence of intersection of the anterior and posterior edges of the acetabulum. The viewing and instrument ports are replaced. An arthroscope is positioned on the outer edge of the joint capsule fibers, and bone resection of the posterolateral surface of the proximal femur is completed within the boundaries of the Cam deformity by inserting a bone burr from the skin incision of the anterior port into the capsule opening of the proximal anterolateral port, preserving the fibers of the joint capsule and the ileofemoral ligament.EFFECT: method ensures correction of the proximal femur within the boundaries of the Cam-deformation while maintaining the integrity of the structures of the passive capsular-ligamentous stabilizers and eliminates the development of complications in the form of microinstability of the hip joint, anterior dislocation of the femoral head, heterotopic ossification due to maintaining the integrity of the structures of the passive capsular-ligamentous stabilizers and eliminating the development of microinstability of the hip joint, anterior dislocation of the femoral head and heterotopic ossification.1 cl, 1 ex

An insole core material for foot support. On the upper surface of the core material, multiple tarsal support portions are formed by three-dimensional ridges that provide corrective support for the skeletal alignment of the foot, corresponding to the positions and heights of multiple tarsal bones. When the upper, lower, or both surfaces of the core material have following grooves or following ridges that follow the movement between the tarsal support portions, it can flexibly accommodate flexion, internal rotation, and external rotation movements. A protruding structure, functioning as a corrective fulcrum, can be provided at a position corresponding to the lower part of the cuboid bone. On the lower, upper, or both surfaces of the core material, one or more reinforcing grooves can be provided to adjust the balance between the overall rigidity and flexural flexibility of the core material and to distribute pressure on the sole of the foot. Optimal support height is achieved by utilizing a structure extending to the base of the metatarsals and a setting based on a mathematical formula using correction coefficients.

This invention discloses a non-orthogonal design five-DOF isokinetic muscle strength assessment and rehabilitation platform for the shoulder joint, relating to the technical field of isokinetic muscle strength assessment and joint rehabilitation equipment. The device includes a two-DOF acromioclavicular joint, a sternoclavicular joint, and a three-DOF glenohumeral ball-and-socket joint; it comprises four active degrees of freedom and one passive degree of freedom, forming a five-DOF system, including the two-DOF acromioclavicular joint, the sternoclavicular joint, and the three-DOF glenohumeral ball-and-socket joint. The two-DOF acromioclavicular joint and the sternoclavicular joint are connected to the three-DOF glenohumeral ball-and-socket joint via fasteners. This invention solves the problem of the limited rehabilitation and assessment paradigms of traditional single-joint, single-DOF isokinetic instruments. It enables multi-DOF muscle strength assessment and rehabilitation training of the shoulder joint in adduction, abduction, internal and external rotation, and extension and flexion without the need to replace the mechanical adapter. It fully considers the actual degrees of freedom of the shoulder joint and adopts a non-orthogonal base structure design, improving the accuracy of joint muscle strength assessment and the efficiency of rehabilitation.

The present application relates to the technical field of medical rehabilitation equipment, and particularly relates to a digital knee joint rehabilitation training device, which comprises a thigh supporting plate and a shank supporting plate, and a bionic joint mechanism is arranged between the thigh supporting plate and the shank supporting plate; the bionic joint mechanism comprises a flexion and extension driving assembly, an internal and external rotation resistance assembly and a forward and backward translation assembly; the flexion and extension driving assembly, the internal and external rotation resistance assembly and the forward and backward translation assembly are used for driving the knee joint to perform a combined motion of flexion and extension, internal and external rotation and forward and backward translation respectively. The device further comprises a control system and a damping assembly used for providing training resistance, and the control system is in signal connection with the damping assembly; the control system provides adjustable resistance training for at least one of the flexion and extension, the internal and external rotation and the forward and backward translation of the knee joint by cooperatively controlling the damping force of the damping assembly. The present application not only guarantees early safe training, but also promotes late muscle strength enhancement, and adapts to dynamic requirements of different rehabilitation stages.

The application discloses a kind of forearms wearable devices based on four-pole two cable tension structure, belong to upper limb wearable power-assisted equipment technical field.It mainly includes coaxial installation forearm rotating mechanism and wrist self-recovery mechanism.Forearm rotating mechanism is constituted by upper fixed ring, three-pole parallel mechanism and three equidistant distribution four-pole two cable tension integrated unit.Tension integrated unit and three-pole parallel mechanism realize multi-position steady-state switching and elastic power in forearm internal rotation / external rotation movement in cooperation.Wrist self-recovery mechanism includes hand support ring, four wrist support blocks, four branch chains and four elastic ropes, forms two-degree-of-freedom parallel tension structure, realizes the assistance, buffering and automatic reset of wrist flexion and extension and adduction and abduction movement.The device combines tension integrated structure and rigid parallel mechanism, has compliance, stability and lightweight characteristics, can match human movement mechanism, improve wearing comfort and safety.