A motorized surgical stapler, comprising: an enveloping body (110) an endoscopic part (140) that extends distally from the enveloping body and defines a first longitudinal axis; a drive motor (200) arranged at least partially inside the housing; a trigger rod (220) arranged in mechanical cooperation with the drive motor; an end effector (160) disposed next to a distal part of the endoscopic part, the end effector being in mechanical cooperation with the firing rod to present a surgical fixation element; a current sensor (1010) configured to measure a current consumption in the motor; a controller (500) configured to determine if the surgical fixation element is deployed satisfactorily, based on the first waveform of the current consumption in the motor; and said motorized surgical stapler being characterized in that it further comprises a memory (502) configured to store satisfactory test trigger data comprising a second waveform of the current consumption in the motor during the successful firing of the motorized surgical stapler, in which the controller compares the first waveform of the current consumption in the motor with the second waveform of the test trigger data satisfactory to determine if the surgical fixation element has been deployed satisfactorily.Una grapadora quirúrgica motorizada, que comprende: un cuerpo envolvente (110) una parte endoscópica (140) que se extiende distalmente desde el cuerpo envolvente y define un primer eje longitudinal; un motor de accionamiento (200) dispuesto por lo menos parcialmente en el interior del cuerpo envolvente; una varilla de disparo (220) dispuesta en cooperación mecánica con el motor de accionamiento; un efector extremo (160) dispuesto junto a una parte distal de la parte endoscópica, estando el efector extremo en cooperación mecánica con la varilla de disparo para presentar un elemento de fijación quirúrgico; un sensor de corriente (1010) configurado para medir un consumo de corriente en el motor; un controlador (