An anastomotic device for use in the joining of a first tubular structure and a second tubular structure is provided. A plate member is provided, along with two or more attachment members that are anchorable to bones. The catalyst has improved selectivity in the epoxidation process. The approximation is then compared to actual values to obtain a difference. The distance between the total reflection mirrors and the beam splitter is adjustable. Each of the plurality of codec converting units selects a different pair of first and second encoding modes.