Patent ID: 9565998
Date: 2017-02-14
CPC Classifications: A61B,A61M

Claim:
1. A system for performing minimally invasive procedures in a body lumen of a patient, the system comprising: a flexible catheter having a first lumen configured and dimensioned to receive an endoscope therethrough and a second lumen configured and dimensioned to receive a first flexible tube therethrough, the first lumen terminating at a distal end in a first opening and the second lumen terminating at a distal end in a second opening; a first flexible tube movable through the second lumen, the first flexible tube having a first channel extending therethrough configured and dimensioned to receive a first endoscopic tool for axial movement therein, the first channel terminating in a first distal opening, the first flexible tube having a longitudinal axis and a tube distal portion movable to a curved position with respect to the longitudinal axis, the distal portion including a first curve extending in a first direction with respect to the longitudinal axis and a second curve extending in a second different direction with respect to the longitudinal axis, the first flexible tube slidable axially within the second lumen; and a retractor system positioned at a distal portion of the catheter, the retractor system including first and second flexible elements movable from a non-expanded insertion position to an expanded position forming an expanded cage to form a larger working space, the expanded cage having a proximal region, a distal region and an interior between the proximal and distal regions, the distal portion of the first flexible tube movable laterally and axially within the expanded cage to direct a distal tip within the interior of the expanded cage between the proximal and distal regions, wherein the first curve increases a distance to a target lesion from the first distal opening of the first flexible tube, the first distal opening of the first tube communicating with the interior at the proximal region of the expanded cage and the first and second openings of the catheter communicating with the interior at the proximal region of the expanded cage.