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ELECTRONICALLY CONTROLLED ARTIFICIAL INTERVERTEBRAL DISC WITH MOTOR ASSISTED ACTUATION SYSTEMS AND AN ACTIVE CLOSED-LOOP MICROCHIP RESPONDING BY SENSORS TO VARIABLE HUMAN LOCOMOTOR ACTIVITY AND SPINAL MOTION
ELECTRONICALLY CONTROLLED ARTIFICIAL INTERVERTEBRAL DISC WITH MOTOR ASSISTED ACTUATION SYSTEMS AND AN ACTIVE CLOSED-LOOP MICROCHIP RESPONDING BY SENSORS TO VARIABLE HUMAN LOCOMOTOR ACTIVITY AND SPINAL MOTION
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机译:具有电机辅助致动系统的电子控制人工椎间盘和传感器响应人类机芯活动性和旋转运动的主动闭环微芯片
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摘要
An electronically assisted artificial vertebral disc having an upper disc plate and a lower disc plate is disclosed. An actuator imparts movement to at least one of the upper and lower disc plates. A control device controls the actuator and the amount of movement between the disc plates. The actuator includes a plurality of either linear actuators or rotary actuators that are driven by electric motors in response to the control device. The control device includes at least a first sensor for detecting the position of the actuator and at least a second sensor for detecting the spatial orientation of at least one of the upper and lower disc plates. The control device also preferably includes a microprocessor that calculates the desired positions of the upper and lower disc plates and provides a control signal to the actuator to drive the upper and lower disc plates to their desired positions.
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