A method for the manufacture of a medical wire includes manufacturing a fluororesin-coated wire and irradiating with infrared radiation. An approximate path is generated based on a reduced grid map generated by reducing an original grid map. The thus produced novel type I natural ceramide derivative, when combined with other ceramides, can significantly improve the compatibility of ceramides, which facilitates preparation of a composition containing ceramides, such as a moisturizer or a cosmetic, and also increases the storage stability of the composition. The first longitudinal length and the second longitudinal length are configured such that when viewing the object at a predetermined wavelength of light, the object is magnified at a predetermined level of magnification and the focal plane of the magnified object is aligned at the proximal end of the first optical element. The support assembly may collapse and expand and, when collapsed, may fit cooperatively adjacent to the carrier. The process comprises a step for automatically detecting the length L in information bits of the frame so as to decode the entire frame, the length L of the frame being variable from one frame to another and such that Lmin\u2266L\u2266Lmax=, where k is a predetermined whole number greater than or equal to one.