Surgical instrument

摘要

A surgical instrument system that is adapted to be inserted through an incision of a patient for operation by a surgeon from outside the patient, the system comprising: an arm member having a proximal end disposed outside the patient and a distal end internal of the patient; a support for the arm member that provides controlled translation of the arm member with the proximal end thereof moving substantially only in a predetermined plane; and an instrument member carried by the arm member and including a tool disposed at the distal end of the arm member.