Patent ID: 9554690
Date: 2017-01-31
CPC Classifications: A61B,A61M

Claim:
1. An endoluminal device for insertion into a body lumen of a patient, the endoluminal device comprising: a tubular member having at least one lumen extending therethrough to receive an endoscopic instrument and a distal opening communicating with the lumen and positioned at a distal end of the lumen; and a chamber at a distal portion of the device, the chamber extending distal of the distal opening and lumen and including first, second and third connected flexible retractor elements extending distal of the distal opening and lumen and a covering over a portion of the flexible retractor elements to form with the flexible retractor elements an at least partially enclosed chamber distal of the distal opening and lumen with a side access opening in the chamber to access target tissue, the chamber formed within a space between the flexible retractor elements and within the covering, the second and third flexible retractor elements connected at a distal portion of the retractor elements and movable from a first non-expanded position for insertion into the body lumen of the patient to a second radially expanded position to create an increased working space and increased viewing space within the body lumen for performance of a procedure on the target tissue, the first flexible retractor element providing a stiffened structure along the chamber to stabilize the chamber.