An endoscope attachable cystolith entrapment apparatus, attachable to an extant endoscope, includes a sleeve mount and an operative end. A plurality of distensible leaves, actionable at the operative end, is moveable between a closed position, furled and retracted interior to an anterior aperture disposed at the operative end, and an open position, unfurled and extended out from the anterior aperture by manual action at a deployment member. Each of the plurality of distensible leaves is transparent whereby vesical calculi are sightable, targetable, and thence captuarable within a capture volume during cystoscopy, and thence removable from a bodily lumen absent direct contacting with adjacent tissue.
