Abstract: A helmet includes a helmet shell and an impact absorber arranged at an inner side of the helmet shell. The impact absorber includes a hemispherical main body and an inserted member. The main body includes an insertion recess in an outer surface of the main body, the insertion recess defines an insertion space between the outer surface of the main body and an inner surface of the helmet shell, and the insertion space is open toward a fitting opening of the helmet shell. The inserted member is press-fitted into the insertion space.

Abstract: A capsule-type medical device collector has a cylindrical net member (61a) whose mesh size is formed so as to be able to collect a capsule endoscope (3), slits 61d and (61d), an INSULOCK binder (61e), and handle members 61f and (61f). By binding the other end of the cylindrical net member (61a) with the INSULOCK binder (61e) to form the cylindrical net member (61a) in a bag shape and sandwiching ear members (61a1) and (61a1) of the cylindrical net member (61a) between a toilet stool (7) and a toilet seat (71), the cylindrical net member (61a) is fixed on the toilet stool (7). After excretion, the cylindrical net member (61a) is taken out and only a capsule endoscope (3) is collected. In such a manner, a capsule-type medical device discharged from a subject to the outside is easily collected.

Abstract: A capsule-type medical device collector has a cylindrical net member (61a) whose mesh size is formed so as to be able to collect a capsule endoscope (3), slits 61d and (61d), an INSULOCK binder (61e), and handle members 61f and (61f). By binding the other end of the cylindrical net member (61a) with the INSULOCK binder (61e) to form the cylindrical net member (61a) in a bag shape and sandwiching ear members (61a1) and (61a1) of the cylindrical net member (61a) between a toilet stool (7) and a toilet seat (71), the cylindrical net member (61a) is fixed on the toilet stool (7). After excretion, the cylindrical net member (61a) is taken out and only a capsule endoscope (3) is collected. In such a manner, a capsule-type medical device discharged from a subject to the outside is easily collected.

Abstract: A process for producing an infusible and insoluble granular sulfurized material by reacting a petroleum heavy material and sulfur with stirring in the presence of a reaction medium and further in the presence of, if necessary, an infusible and insoluble solid material, and, further, a process for producing granular carbon comprising carbonizing the granular sulfurized material produced above or alternatively a process for producing granular activated carbon comprising carbonizing and activating the granular sulfurized material.