A device for delivering a biocompatible material to a surgical site includes a cannula having proximal and distal portions and at least a first interior lumen disposed therebetween through which the biocompatible material is delivered. The control and supply unit includes an auxiliary power supply that is rechargeable and a connecting means to exchange data or supply a voltage. Such memberenrollees are continuously tracked, on an individual basis, and monitored to ensure healthcare is delivered for a variety of specific medical conditions pursuant to objective health program quality criteria. A second shield layer is formed on the second non-magnetic layer. The use of this method results in a CORDIC implementation for which each stage increases the precision of the final result by a factor of 2n, by considering n bits of the present-stage rotation angle.