Abstract: An endoscope comprising an examination field cleaning system and a method of using the endoscope to clean an examination field in an internal body cavity are disclosed herein. The endoscope comprises an inner channel comprising a primary working channel, lens system, and light delivery system and an outer secondary working channel comprising an examination field cleaning system. The inner channel is approximately cylindrical and is encompassed by a rigid or flexible tube. The outer secondary working channel is encompassed by an outer cylinder that is approximately concentric with and fully encompasses the inner channel and tube, wherein the examination field cleaning system may comprise one or more fluid delivery channels. The endoscope may further comprise an anchoring bridge, wherein the anchoring bridge secures the outer cylinder to the inner channel.

Abstract: An endoscope comprising an examination field cleaning system and a method of using the endoscope to clean an examination field in an internal body cavity are disclosed herein. The endoscope comprises an inner channel comprising a primary working channel, lens system, and light delivery system and an outer secondary working channel comprising an examination field cleaning system. The inner channel is approximately cylindrical and is encompassed by a rigid or flexible tube. The outer secondary working channel is encompassed by an outer cylinder that is approximately concentric with and fully encompasses the inner channel and tube, wherein the examination field cleaning system may comprise one or more fluid delivery channels. The endoscope may further comprise an anchoring bridge, wherein the anchoring bridge secures the outer cylinder to the inner channel.