Abstract: The invention relates to a stool sample device [A?] for collecting a stool sample from a region of a human rectum, characterised in that it comprises an outer part and an inner part, wherein the outer part comprises an outer unit [G?], wherein an inner unit [E?] is mounted, further wherein the outer unit [G?] has a round tip and comprises openings for collecting sample; and the inner part comprises the inner unit [E?] fitted with gaskets [D?], further wherein the inner unit [E?] is equipped with a spiral-shaped part or snail placed at the tip end relative to the outer unit [G?] and with a handle for turning [B?] and pulling [C?] at the opposite end relative to the spiral-shaped part or snail, a first gasket [D?] is placed at the tip end of the inner unit [E?], and a second gasket is placed at the opposite end of the inner unit [E?] relative to the spiral-shaped part or snail; wherein the inner unit [E?] can be turned and pulled back by the handle [B?, C?].

Abstract: The present disclosure relates to a system for generating a predefined electrical signal in an MR scanner for use in electrical stimulation of a subject during MRI or functional MRI of said subject, wherein said MR scanner is located inside a shielded MRI room. The system comprises a control unit to be located outside the MRI room for generating an electrical signal and an electrical to optical converter to be located outside the MRI room for converting said electrical signal to a corresponding optical signal. An optical transmitting element, such as an optical fiber, is used for transmitting the optical signal into the MRI room, and an optical to electrical converter is used for converting the optical signal to said predefined electrical signal for electrical stimulation of the subject during magnetic resonance imaging. The optical to electrical converter is configured for being located inside the MRI room and for operation during magnetic resonance imaging.

Abstract: The present disclosure relates to a system for generating a predefined electrical signal in an MR scanner for use in electrical stimulation of a subject during MRI or functional MRI of said subject, wherein said MR scanner is located inside a shielded MRI room. The system comprises a control unit to be located outside the MRI room for generating an electrical signal and an electrical to optical converter to be located outside the MRI room for converting said electrical signal to a corresponding optical signal. An optical transmitting element, such as an optical fiber, is used for transmitting the optical signal into the MRI room, and an optical to electrical converter is used for converting the optical signal to said predefined electrical signal for electrical stimulation of the subject during magnetic resonance imaging. The optical to electrical converter is configured for being located inside the MRI room and for operation during magnetic resonance imaging.