There are provided a base structure for a device such as a hard disk drive and a hard disk drive having the same. The leukofilter has a filtration medium enclosed within a flexile housing. This result is particularly advantageous for paper towels. The curved cannula allows the flexible element to navigate through a curve within bone without veering off towards an unintended direction. When the first rotating member and the second rotating member are rotated away from the base member, the connector plug is disengaged from the connector socket. The file generation unit forms the data portion according to a specific command, and generatesstores a computer image file based on the data portion.