An expiration time of a therapeutic fluid delivered by an implantable fluid delivery device is employed to calculate a fill volume and determine a refill interval for the fluid. 50 or more, a fluoroalkyl acrylate represented by the following formula and methyl methacrylate, wherein a weight ratio of monomer componentmonomer component ) in the copolymer is within the range of 0. In response to receiving the request, a payment amount to insure delivery is identified based on network characteristics of a network in which the electronic document is to be transmitted. The liner shape is selected and a radial distance from the longitudinal axis is selected. The second edge counter counts the number of the detected edges during a second period. The device includes a first conductive surface covering a portion of one of the sidewalls for providing an input to the circuit, a second conductive surface covering a portion of one of the sidewalls for providing an output from the circuit, and a third conductive surface covering a portion of one of the sidewalls for providing an electrical ground to the circuit.