A method involves positioning a housing in an ureteral access sheath that is positioned in a lumen in a living body, moving the housing toward calculus located in the ureteral access sheath, positioning the housing in the ureteral access sheath adjacent the calculus in the ureteral access sheath, drawing the calculus in the ureteral access sheath through the inlet and into the housing by suction in the interior of the housing, and removing the housing from the ureteral access sheath while the calculus remains in the housing.
