An apparatus and method for effecting at least one anatomical structure of a body including at least one first arrangement structured to be at least partially inserted into the body and including an opening, at least one third arrangement configured to increase and/or decrease a size of the opening by a motion thereof in a first direction, and at least one second arrangement coupled to the third arrangement(s). When the anatomical structure(s) is/are inserted in the opening and is pressed on by the second arrangement(s), a first motion of the third arrangement(s) toward the anatomical structure(s) in the first direction is reduced and/or terminated while a second motion of the second arrangement(s) either (i) remains at least approximately the same, and/or (ii) is reduced to a lesser extent than that of the first motion.