1. A surgical instrument comprising: a handle assembly and an extended stem assembly that is operatively connected to said handle assembly, said elongated stem assembly having a distal end connected to an end clamp into which a cassette with brackets comprising a plurality of unformed brackets and a thrust plate are mounted , which is capable of moving from an open position, where the cassette with brackets and the bracket-forming surface of the thrust plate are spatially separated into forming engagement with the brackets, m, the distance traveled by the thrust plate before it comes into contact with the brackets in the cassette with brackets depends on the magnitude of the actuation force that is applied to it by the actuation system located at least partially in the specified elongated stem assembly and the specified handle assembly and controlled by the trigger trigger having a movable support on the handle assembly; so that the indicated magnitude of the actuation force applied to the indicated movable thrust plate depends on the degree of pressing the trigger trigger in the handle assembly. 2. The surgical instrument according to claim 1, wherein said elongated stem assembly includes an elongated central module operatively attached to and protruding from said handle assembly, said elongated central module having a distal end that is removably connected to the end clamp, and where the system operation, contains a working tube, movably resting on the specified Central element, and interacting with the specified trigger trigger so that when you click on the specified trigger1. Хирургический инструмент, содержащий:узел рукоятки иудлиненный узел штока, который оперативно соединен с указанным узлом рукоятки, причем указанный удлиненный узел штока имеет дистальный конец, соединяемый с концевым зажимом, в который устанавливается кассета со скобками, содержащая множество несформированных скобок, и упорную пластину, которая способна перемещаться из открытого положения,