Extensible electrode array for accurately locating a pelvic floor muscle, design method thereof and extensible pelvic floor electrode

Abstract

Disclosed is an extensible electrode array () for accurately locating a pelvic floor muscle, and its design method and an extensible pelvic floor electrode. The design method includes: (1) obtaining a three-dimensional muscle anatomy map of a pelvic floor muscle, dividing a muscle according to the three-dimensional muscle anatomy map and determining a muscle fiber trend, and for each muscle, determining a plurality of three-dimensional coordinate points for marking each muscle along the muscle fiber trend (S); (2) after projecting all three-dimensional coordinate projects onto a two-dimensional plane unfolded in a shape of an elastic cavity (), taking each two-dimensional coordinate point in the two-dimensional plane as a location to dispose an electrode plate (S); (3) simulating a mechanical property of the elastic cavity (), and determining a deformation rate of an extensible electrode wire () of the electrode plate when the extensible electrode wire () of the electrode plate is arranged along a muscle fiber direction of the pelvic floor muscle (S); and (4) according to a design result, mounting the electrode plate and the extensible electrode wire () on the elastic cavity () to form the extensible electrode array () (S). The design method enables each electrode plate to locate the pelvic floor muscle before and after expansion, thereby improving accuracy in collecting a myoelectric signal of the pelvic floor muscle.