BALLOON-TIPPED ENDOSCOPIC SYSTEM WITH INVERTED SLEEVE

摘要

Multi-luminal endoscopic systems for sterilely delivering deployable devices. The system comprises an outer catheter comprising a distal portion and a wall that encloses an outer lumen; an inner catheter movably disposed within the outer lumen and having an inner lumen; a balloon-tipped catheter movably disposed within the inner lumen and having a distal portion and a proximal portion, wherein the distal portion of the balloon- tipped catheter comprises a balloon; a deployable device within the outer lumen; an invertible sleeve within the outer lumen with a first section attached to the distal portion of the outer catheter and a second section attached to a push mechanism that is proximal to the deployable device; and wherein the balloon is expandable to contact the invertible sleeve to provide a seal to prevent bodily fluids from entering the outer lumen.