6 results about "Joint load" patented technology

This invention belongs to the field of medical technology and discloses a method for collaborative optimization of joint torque and trajectory tracking control of surgical robot arms. Through biomechanical-multibody dynamics coupled modeling, it dynamically correlates tissue viscoelastic properties with joint torque, forming a "mechanics-damage" dual constraint mechanism. A memory-enhanced controller introduces a damage warning factor, adjusting torque output in real time during instrument-tissue interaction to avoid traction damage caused by excessive load on a single joint. Simultaneously, a digital twin system predicts potential risks in advance, reducing the threat of surgical operations to fragile tissues throughout the entire process from modeling and control to verification, providing safety assurance for operations in delicate surgical areas. Through phased dynamic weight optimization, it achieves adaptive adjustment of targets at different surgical stages. A multimodal sensor fusion architecture, combining flexible sensing and imaging data, improves the perception accuracy of complex tissue environments.

The invention belongs to the technical field of knee joint arbor treatment equipment, and particularly relates to a knee joint force line appliance which comprises a body and a pressure mechanism, the body comprises a main body supporting frame, a thigh binding assembly and a shank binding assembly, and the thigh binding assembly and the shank binding assembly are in sliding connection with the main body supporting frame; after sliding in place, the main body supporting frame is fixed, and then the main body supporting frame is bound to the thigh and the shank respectively; the pressure mechanism is located between the thigh binding assembly and the shank binding assembly, and the pressure mechanism applies adjustable pressure to the key position of a force line to adjust the form of the force line of the lower limb joint, reduce and improve the development speed of gonitis lesion and reduce knee joint pain. Gradient pressure is applied to the outer side, the lower limb force line is guided to be corrected towards the outer side, and joint load redistribution is achieved. The structure of the device adopts an arc-shaped fitting design conforming to ergonomics, and it is ensured that a pressure acting point is accurately located at a key position of a knee joint force line.

The application provides a sports action correction and monitoring system based on image recognition and big data, and relates to the technical field of artificial intelligence.The data synchronization and fusion module uses big data processing technology to integrate multi-source data, eliminate space-time differences, and improve the accuracy and reliability of analysis results.The biomechanics solving module uses Lagrange equation to calculate the lower limb joint torque vector in real time, and realizes instant monitoring of the joint torque.The load optimization module uses Adam optimization algorithm to optimize the stride width and knee flexion angle through gradient descent method, minimizes the maximum joint torque, reduces the joint load of athletes, and prevents potential harm.The feedback display module transmits the optimized action parameters to wearable devices in real time, guides athletes to adjust actions in real time, and ensures the efficiency and safety of training.

A leg joint of a humanoid biped robot for tendon movement control comprises a waist joint supporting piece, a left leg structure and a right leg structure are installed on the two sides of the waist joint supporting piece through lateral joint components respectively, and each of the left leg structure and the right leg structure comprises a thigh structure, a shank structure and a movement control assembly part. The bottom of the thigh structure is rotationally connected with the top of the shank structure through a knee joint structure, a foot plate structure is rotationally installed at the bottom of the shank structure through an ankle joint structure, and the motion control assembly part is installed at the top of the thigh structure, connected with a tendon-imitating driving pull wire assembly and provided with an installation outer shell. A lateral joint connecting part is arranged on the installation outer shell and used for being connected with a lateral joint component. According to the invention, excellent dynamic performance, naturalness and flexibility can be realized, far-end driving is realized, the joint load and rotational inertia are small, the joint structure stability is high, and the required initial driving force is small, so that the power consumption is lower.

The application discloses a high-strength passive ankle exoskeleton suitable for people with a weight of more than 75 kg, which comprises a proximal shank binding assembly, left-right symmetrical carbon fiber anti-torsion support strips, a rear integrated carbon fiber energy storage spring piece, an ankle adjustable angle mechanical hinge, a semi-enclosed rigid foot bottom support shell and a multi-point locking binding system. The device realizes weight load shunting through proximal shank bearing, and can reduce ankle joint load by 15%-30%. The carbon fiber spring piece realizes energy storage, buffering and ground-pushing assistance in a gait cycle. The bilateral carbon fiber support forms a wrapped anti-torsion cage, effectively limiting ankle joint varus, eversion and horizontal torsion. The mechanical hinge can realize adjustable dorsiflexion and plantar flexion angles, and has a mountain climbing locking gear. The overall structure safety factor is greater than or equal to 5.0, and the lightweight passive design can meet the high-intensity sports requirements such as running, jumping, sudden stopping and turning, outdoor mountaineering and the like, and solves the problems of large ankle joint load, easy sprain and insufficient stability of people with a large weight during sports.

The invention relates to the technical field of sports science, and discloses a sports state real-time identification and error correction prompting method and system, and the method comprises the steps: carrying out the data cleaning of an original sports number of a user, and obtaining the standard sports data of the user; extracting a three-dimensional angle change sequence of joints in the standard motion data, and generating joint angle information of the user; quantifying a limb movement track in the standard movement data to obtain limb curvature information of the user; according to a preset standard posture knowledge base, traversing the joint angle information and the limb curvature information, and generating a posture error identifier of the user; analyzing joint load distribution and motion biomechanical parameters in the posture error identifier, and generating a potential injury risk correction scheme of the user; extracting posture adjustment information in the potential damage risk correction scheme, converting and packaging the posture adjustment information, and outputting a posture correction signal of the user; according to the invention, the efficiency of motion state real-time identification and error correction prompting can be improved.