SURGICAL INSTRUMENT SYSTEM INCLUDING REPLACEABLE END EFFECTORS Russian patent published in 2018 - IPC A61B17/72 A61B34/00 

FIELD: medicine.

SUBSTANCE: surgical instrument system comprises a body, the first end effector and the second end effector. The body includes a drive shaft driven by an engine. The drive shaft driven by the engine is configured to perform a predetermined number of revolutions during the start-up activation. The first end effector and the second end effector are configured to connect to and detach from the body. The first end effector forms the first starting path, having the first starting length. The second end effector forms the second starting path, having the second starting length. The second starting length differs from the first starting length. The first end effector comprises the first trigger element and the first drive screw. The second end effector comprises the second trigger element and the second drive screw. The first trigger element is arranged to move along the first starting path. The first drive screw is configured to be operatively connected to the drive shaft driven by the engine and functionally detached therefrom. The first drive screw is arranged to engage the first trigger element so that the first driving screw rotation causes the first trigger element to move along the first starting path. The first drive screw is configured to cause the first trigger element to move to the first starting length when the drive shaft driven by the engine executes a predetermined number of revolutions. The second starting element is movable along the second starting path. The second drive screw is configured to be operatively connected to the drive shaft driven by the engine and functionally detached therefrom. The second drive screw is arranged to engage the second trigger element so that the second driving screw rotation causes the second trigger element to move along the second starting path. The second drive screw is configured to cause the second trigger element to move to the second starting length when the drive shaft driven by the engine executes a predetermined number of revolutions. The surgical set for use with the above surgical instrument system includes an engine configured to be driven by a drive shaft of a predetermined number of revolutions during start-up activation. The surgical instrument set contains the aforementioned first end effector and the aforementioned second end effector. The first end effector and the second end effector are configured to be connected to and disconnected from the surgical instrument system. The method of operating the above surgical instrument system comprising a rod and an engine includes the steps of: selection of the first end effector comprising the first trigger element and the first actuator. The first trigger element is functionally connected to the first actuator; connection of the first end effector with the surgical instrument system rod; functional connection of the first actuator with the surgical instrument system engine; the engine making a predetermined number of revolutions to advance the first trigger element to the first distance during the first starting stroke; functional detachment of the first starting drive from the engine; detachment of the first end effector from the rod; selection of the second end effector comprising the second trigger element and the second actuator. The second trigger element is functionally connected to the second actuator; connection of the second end effector with the surgical instrument system rod; functional connection of the second actuator with the surgical instrument system engine, and the engine making a number of revolutions equal to the predetermined number of revolutions to advance the second trigger element to the second distance during the second starting stroke. The second distance of the second starting stroke is greater than the first distance of the first starting stroke.

EFFECT: application of inventions with a possibility of rapid disassembly contributes to fast attachment and detachment of a multitude of transmission components that provide the transfer of control movements from the drive motions source to a functionally connected end effector.

15 cl, 178 dwg