SURGERY SYSTEM FOR ENDOSCOPIC SUBMUCOSAL DISSECTION (ESD) AND SURGERY METHOD

摘要

Provided is a surgery system and a surgery method for ESD excellent in operability, safety and reliability of surgery with reduction of time spent in surgery and surgical invasion.  The surgery system for ESD includes magnetic anchors (20, 20’, 20’’, 22A, 22B) composed of an engaging member (21) engaged with a lesion region (T2a) of the inner surface of a human body tract (T) and small-diameter magnetic members (22, 22’, 22’’, 22A, 22B) connected with one another, a magnetic flux radiating means (10, 10a, 10b) mounted in the end (41) of the endoscope to be inserted into the vicinity of the legion region of the human body tract and having hermetically-sealed magnetism producing elements (15, 15A, 15B, 16) to give electromagnetic repelling forces to the magnetic anchors, and a magnetic flux control means (70) provided to the outside of the human body for controlling from the outside the distribution of the magnetic flux radiated from the magnetic flux radiating means.  The magnetic flux control means (70) controls, from the outside, the distribution of the magnetic flux radiated from the magnetic flux radiating means so as to give electromagnetic repelling forces to the magnetic anchors, and the lesion region engaged with the engaging member is pulled in the direction of removal from the muscle layer (T1) of the human body tract.