Memory devices adapted to process and generate analog data signals representative of data values of two or more bits of information facilitate increases in data transfer rates relative to devices processing and generating only binary data signals indicative of individual bits. The method of making also comprises mixing at least one polyamide polymer chosen from ethylenediaminestearyl dimer tallate copolymer, stearic acid, and at least one amine base. The body member physically and electrically couples with components mounted on a circuit board by mating with component pins extending on a solder side of the circuit board. The second opening at the envelope distal end is provided with a closure member that seals closed the second opening on itself or around the forearm of a surgeon or a surgical instrument inserted into the interior volume of the envelope.