30 results about "Hip fixation" patented technology

System, including methods, devices, and kits, for hip fixation. The system may comprise an intramedullary nail configured to be placed longitudinally into a proximal femur. The system also may comprise a fixation element configured to be placed transversely through the nail, such that the fixation element is slideable along its long axis in the nail and extends out of the nail to a head of the proximal femur and is anchored in the head. A compliant member may be located in the nail and configured to deform reversibly in response to a load applied to the head of the proximal femur after placement of the fixation element, to reversibly change an angular orientation of the fixation element with respect to the nail.

System, including methods and apparatus, for hip fixation with load-controlled dynamization. In exemplary embodiments, the system may comprise a fixation element, such as a screw, configured to be placed into a proximal femur of a subject, with a leading end of the fixation element anchored in a head of the proximal femur. The system also may comprise a stop member configured to be connected (e.g., via a nail or plate) to the proximal femur. The system further may comprise a deformable member configured to be irreversibly deformed by compressive force exerted on at least a portion of the deformable member by the fixation element and the stop member in response to a load applied to the proximal femur by the subject, such that the fixation element and the stop member move relative to one another parallel to a long axis of the fixation element.

System, including methods, devices, and kits, for hip fixation. The system may include a support member defining an aperture and including an intramedullary nail for a proximal femur or a plate member for a proximal femur. The system also may include a fixation element having a compliant region and configured to be received in the aperture of the support member such that the fixation element extends out of the support member from the aperture and into a head of the proximal femur and is slideable with respect to the support member along a long axis defined by the fixation element. The system further may include a set of stiffening inserts each insertable into the fixation element and configured to stiffen the compliant region differently from one another.

System, including methods and apparatus, for hip fixation with load-controlled dynamization. In exemplary embodiments, the system may comprise a fixation element, such as a screw, configured to be placed into a proximal femur of a subject, with a leading end of the fixation element anchored in a head of the proximal femur. The system also may comprise a stop member configured to be connected (e.g., via a nail or plate) to the proximal femur. The system further may comprise a deformable member configured to be irreversibly deformed by compressive force exerted on at least a portion of the deformable member by the fixation element and the stop member in response to a load applied to the proximal femur by the subject, such that the fixation element and the stop member move relative to one another parallel to a long axis of the fixation element.

System, including methods, devices, and kits, for hip fixation. The system may include a fixation element configured to be placed obliquely into a proximal femur and anchored in a head of the proximal femur. The system also may include a plate member including (a) a mounting portion configured to be placed on and attached to a lateral cortex of the proximal femur and (b) a barrel portion configured to be placed into a lateral region of the proximal femur and positioned around a portion of the fixation element. The system further may include a compliant member positioned or positionable at least partially in the plate member and configured to be reversibly deformed in response to a load applied to the head of the proximal femur, to change an angular orientation of the fixation element with respect to the plate member.

The invention relates to a hip joint brace system and a control method thereof. The hip joint brace system comprises a fixing seat, lower limb braces, action actuators connected with the fixing seat and the lower limb braces, connecting structures which are used for connecting the fixing seat and the lower limb braces and limiting the motion range of the lower limb braces, and a control device used for controlling the whole system. According to the hip joint brace system, hip joints are effectively fixed at the positions in need of treatment, and the connecting structures are arranged and matched with the action actuators and the lower limb braces to enable the hip joints to make passive movement, so that the passive movement of the hip joints is enabled to be stable and reliable, tissue reconstruction is promoted, tissue repair is accelerated, and the incidence of joint complications caused by long-term treatment can be avoided. The control method of the hip joint brace system enables the passive movement of the hip joints to be more intelligent and regular by setting and adjusting the parameters of a control module, so that the reliability and safety of the hip joint brace system can be improved in the using process.

The invention discloses an auxiliary light-weight integrated multi-freedom-degree lower limb exoskeleton and relates to the field of bionic wearable exoskeleton robots. The auxiliary light-weight integrated multi-freedom-degree lower limb exoskeleton comprises a back mounting board, a waist connection part, a hip bionic structure, a hip joint, a thigh bionic structure, a knee joint, a crus bionic structure, an ankle joint and a foot bionic structure; the ankle joint is arranged at the edge of the upper surface of the foot bionic structure; the crus bionic structure is fixedly connected with the foot bionic structure; the thigh bionic structure is installed on the knee joint at the top of the crus bionic structure; the hip joint is fixedly installed at the upper end of the thigh bionic structure; the hip bionic structure is fixedly installed at the upper end of the hip joint; the waist connection part is fixedly connected with the hip bionic structure; and the back mounting board is vertically and fixedly connected with the waist connection part. Through integration of freedom of degrees of all joints, an active joint drive structure is added, the light-weight structure form enhances the man-machine safety and wearing comfort under the condition of meeting the load requirements, and the auxiliary effect of the exoskeleton is improved.

The invention discloses a dummy hip joint calibration system and method for automobile collision, belonging to the field of automobile safety detection. The system comprises a test table; a dummy hip joint fixing device is arranged on the test table; and a dummy hip joint is fixedly arranged on the test table through the dummy hip joint fixing device. The system further comprises a rocking arm, a force sensor, a rocking arm lifting device and a data processor; one end of the rocking arm extends into a thigh hole of the dummy and is fixedly connected with the hip joint of the dummy; the force sensor is movably connected with the rocking arm; the rocking arm lifting device is connected with the force sensor and is used for applying uplift force to the rocking arm; a comparing module in the data processor compares the stress data of the dummy hip joint acquired by the force sensor with a calibrated standard data, and then the calibration module calibrates the detected dummy hip joint. The system and method provided by the invention can be used for solving the problems that in the prior art, much more sensors are required for the calibration table of the existing dummy hip joint, the calculation is complex and error is easy to cause, and meanwhile, the cost and the maintenance cost are high.

The invention relates to an under-actuated running gear and a turning control method thereof. The running gear comprises legs formed by inner side legs and outer side legs, the inner side legs and the outer side legs are connected by a crankshaft. The inner side legs are rotatably arranged on an inner horizontal shaft. The two outer side legs are respectively rotatably arranged on outer horizontal shafts on two ends. An elevating hip joint is fixed on the left side or the right side of an upper body platform, and comprises a sliding block, a screw motor and a sliding rail. The center of the sliding block is provided with threads. A screw passes through the middle of the sliding block. The screw is connected with the screw motor which is fixed on the upper body platform. A fixed hip joint is fixed on the right side of the left side of the upper body platform. The upper body platform is provided with four supports. The two supports on the middle are supported on two ends of a middle shaft. The middle shaft rotatably passes through two supports on the inner side of the platform. Support short shaft rotatably pass through a support on the outer side of the platform. The screw motor is on the central lower position of two supports on the left or on the right, and is fixedly connected with the platform. The running gear is low in power consumption, simple in structure, and good in stability. The running gear realizes flexible turning through simple control.