A tape reel is so constructed that an upper flange and a lower flange are respectively provided at an upper and a lower ends of a cylindrical reel hub around which a magnetic tape is wound, and a maximum value of a distance from the upper flange and the lower flange to lateral ends of the magnetic tape is set to be 0. The supporting arrangement holds the side edges of the shade fabric, on the one hand, and on the other, tension the shade fabric between the side edges in the transverse direction. The force sensor is configured to provide a mechanomyography output signal in response to a contact force applied against the elongate device body by the sphincter. At least some of the plurality of device carriers has a different internal configuration than at least some of other ones of the plurality of device carriers, wherein the internal configuration is determined based on at least one physical characteristic of a device to be inserted therein. At least one sensor carried by the harvester outputs a signal based upon an attribute of the biomass portion.