2 results about "Lower limb injury" patented technology

The present application relates to the technical field of traffic safety, and discloses a data processing method and system based on a vehicle and pedestrian lower limb collision analysis model to realize rapid prediction of lower limb injury. The method comprises the following steps: constructing a vehicle and pedestrian lower limb collision analysis model, setting a collision point on a calf mass block when subjected to a collision force brought by a vehicle head, the calf mass block moving along a collision direction under impact load, and establishing a coordinate system with the calf mass point as a system coordinate origin; and in the movement process of the vehicle and pedestrian lower limb collision, the whole lower limb system moves as a projectile relative to the coordinate system and the thigh rotates around the calf, and when the thigh collides with the front edge of the vehicle engine cover, the thigh rotates to a limit position; obtaining an analytical equation of the pedestrian lower limb freedom degree model and an acceleration solving formula of the thigh mass point, and then solving the acceleration of the pedestrian thigh and calf in the collision process according to the vehicle and pedestrian lower limb collision analysis model to perform injury assessment.

This invention relates to a weight-bearing walking aid for lower limb injuries. The walking aid includes a support, upper brace, lower brace, sensor-damping integrated module, control box, and footrest, forming a four-level load-bearing structure. The cup-shaped support, internally lined with an elastic layer, conforms to the pelvis, effectively transferring the lower limb load to the thigh-pelvic junction. The walking aid utilizes pressure sensors on the footrest and angle sensors at the joints to collect data in real time and transmit it to the control box for intelligent analysis. When the knee joint angular acceleration exceeds a threshold and a fall risk is detected, the control box energizes the coil in the sensor-damping integrated module to generate a magnetic field, causing eddy current damping in the copper disc, instantaneously increasing the knee joint's resistance to stabilize posture. Compared to existing technologies, this invention achieves a combination of precise weight reduction and active fall prevention, and supports rehabilitation data visualization via a Bluetooth module.