Multi-lumen catheter retractor system for gastrointestinal treatment with minimally invasive surgery

摘要

A system for performing minimally invasive surgery in a body cavity of a patient, wherein the first lumen is configured and dimensioned to receive an endoscope penetrated therein, and a first flexibility A flexible catheter having a second lumen configured and dimensioned to receive the tube therethrough. The first flexible tube is movable through the second lumen and has a first curve extending in a first direction relative to the longitudinal axis and a second different direction relative to the longitudinal axis. A distal portion including a second curvature extending. At the distal portion of the catheter is a retractor system that can transition from a non-expanded insertion state to an expanded state that forms an expanded cage to create a larger surgical space. . Within the expanded cage, the distal portion of the first flexible tube can be transitioned. [Selection] Figure 5