A cutting device includes a rotatable base defining a plurality of closed-sided, tooth sockets. The individual leadless cardiac pacemakers comprise at least two leadless electrodes configured for delivering cardiac pacing pulses, sensing evoked andor natural cardiac electrical signals, and communicating bidirectionally among the leadless cardiac pacemaker plurality. A dampening ring surrounding the sensor for dampening the relative motion of the sensor with respect to movement of the patient. A first drying agent is arranged in the second feed path. Methods of treatment with such compositions are also included. The apparatus has an inlet and an outlet that is located radially outward from the inlet in order to define a flowpath through the apparatus.