A cardiac constraint device comprising a jacket of biological compatible material and an adjustment member. The wheel incorporating a flashing light feature further includes at least two motion switches to activate the flashing circuit. An intellectual property protection method can include determining a list of controlled IP cores within a bitstream specifying a circuit design, creating a bitstream identifier within the bitstream that is associated with the list of controlled IP cores, and determining a count specifying a number of integrated circuits loaded with the bitstream. An action is selectively initiated based on the comparison to the policy. The entire endoscopic device or its tissue engaging assembly can then be rotated relative to the tissue fold while maintaining engagement with the tissue to maneuver the flexible catheter to the opposing side of the penetrated tissue fold.