Abstract:
Provided is a non-invasive system for estimating an atrial signal, including a plurality of sensors to sense a surface electrocardiogram signal, a reference atrial signal generation unit to generate an estimated ventricular signal with respect to a R wave in an electrocardiogram signal from one sensor among the plurality of sensors, and to generate a reference atrial signal by subtracting the estimated ventricular signal from the electrocardiogram signal from the one sensor, and an atrial signal estimation unit to generate an estimated atrial signal by applying a constrained independent component analysis algorithm based on the reference atrial signal to the received surface electrocardiogram signal, and to estimate one of the estimated atrial signals as an actual atrial signal, and a method using the same.
Abstract:
Disclosed herein is a gait rehabilitation apparatus including a first frame having a bottom surface which is movable at predetermined speed; a second frame extending upwards from a tip of the first frame; a load support unit which is mounted to an upper end of the second frame and is rotatable about a rotation axis thereof; a connection string, one end of which is connected to the load support unit, and the other end of which is connected to an upper body of a rehabilitant; a safety bar which is connected to the second frame and is rotatable so as to be tilted upwards; and a gait assistance link member which has a structure able to be tilted upwards, and is connected to each leg of the rehabilitant entering onto the first frame to assist rehabilitation training of the rehabilitant through mechanical movement of the gait assistance link member.