Each thigh amputee has their own final fantasy, most fantasy is like living a normal life.The emergence of intelligent prostheses has a great help to improve the quality of life of thigh amputee.Let's take a look at how intelligent the current prosthesis is.
Prosthetic experts of MEDI-REHATEK informs that it takes 0.05 seconds to see the outline of the object once the object suddenly appears in front of human eye.The sensors collect walk information for 50 times per second and guard the walk.Knee angle sensor and ankle torque sensor are the sensory system of intelligent bionic prosthetic knee joint.They have the equivalent as every 0.02 seconds to collect a message.
The central microprocessor of intelligent prosthesis is equivalent to the human brain and receives the gathered information at such a rate in real time and judges the swing speed and position of lower leg of prosthesis and the torque and support status from prosthetic heel touching the ground to forefoot with load-bearing leaving the ground. It will have automatic analysis of the response of joints, and convey the command to the internal servo motor of intelligent prosthesis.
Servo motor is like the human nervous system.Fluid cylinder as the important extension device of adjustable knee joint has hydraulic valve that provides appropriate damping at the appropriate time.It changes the swing speed of prosthetic leg and provides strong protection to fixation and security of knee whenstanding and walking.
Relative blog: Simple classification of below-knee prosthesis III
No comments:
Post a Comment