The present invention relates to a catheter device capable of adjusting the distal angle of a catheter body using an adjusting lever, and more particularly, to a catheter device capable of adjusting the angle of a distal end of a catheter body, A catheter body inserted into a body, comprising two or more lines each having one end fixed to two or more fixed portions at the distal end of the catheter body, A guide wire disposed at a point of movement of the catheter body, each guide wire extending through at least two inlet holes into the catheter body, and a control unit connected to a distal end of the catheter body and having an adjustment lever disposed on an outer surface thereof, The rotation of the lever is used to adjust the length of the two or more lead wires secured to the distal end of the catheter body Thereby adjusting the distal angle of the catheter body. The present invention also relates to a method of using a catheter device capable of adjusting an end angle of a catheter body using an adjustment lever, and more particularly, to a tube having flexibility of elongated shape, comprising: a catheter body inserted into a body； A catheter body having two or more lines, each of which has one end fixed to two or more fixed portions at the distal end of the catheter body, and disposed at a position shifted from the two or more fixed portions by a predetermined distance in the catheter body distal direction, And a control unit connected to the distal end of the catheter body and having an adjusting lever disposed on an outer surface thereof, the catheter body having a distal end and a distal end connected to the distal end of the catheter body, CLAIMS 1. A method of controlling a catheter device, comprising: (1) a catheter body, (2) adjusting the distal angle of the catheter body by adjusting the length of the at least two lead wires secured to the distal end of the catheter body using rotation of the control lever, And includes the constitutional features t
