Abstract: This fluorine-containing ether compound is represented by Formula (1). R1—R2—CH2—R3—CH2—R4—R5??(1) (in Formula (1), R1 is an aryl group or an aralkyl group, R2 is a divalent linking group having 0 or 1 polar group, R3 is a perfluoropolyether chain, R4 is a divalent linking group having 2 or 3 polar groups, and R5 is an aryl group or an aralkyl group.

Abstract: An assistance system capable of efficiently selecting a proper doctor from a plurality of doctors in accordance with physical conditions of the doctors and surgery difficulties on a scheduled surgery date. An assistance system includes an information acquisition unit that acquires disease information, lesion area information, and a scheduled surgery date of a scheduled surgery, a lesion area evaluation unit that uses surgery information on a past similar surgery having the lesion area information similar to that of the scheduled surgery, a doctor evaluation unit that uses surgery information on the same past disease surgery performed by each of the plurality of doctors and having at least disease information coinciding with that of the scheduled surgery, and a proposal unit that proposes the doctor whose doctor score falls within a range based on the lesion area score, as a surgeon-in-charge for the scheduled surgery.

Abstract: A fluorine-containing ether compound of the present invention is represented by Formula (1). R1—CH2—R2—CH2—R3??(1) (In Formula (1), R1 is an organic end group having 3 or more carbon atoms which includes two or more polar groups with each polar group being bonded to different carbon atoms and the carbon atoms to which the polar groups are bonded being bonded to each other via a linking group including the carbon atoms which are not bonded to the polar groups, R2 includes a perfluoropolyether chain represented by Formula (3), and R3 is a hydroxyl group or R1) —(CF2)y?1—O—((CF2)yO)z—(CF2)y?1—??(3) (In Formula (3), y represents an integer of 2 to 4, and z represents an integer of 1 to 30).

Abstract: A fluorine-containing ether compound of the present invention is represented by Formula (1). R1—CH2—R2—CH2—R3??(1) (In Formula (1), R1 is an organic end group having 3 or more carbon atoms which includes two or more polar groups with each polar group being bonded to different carbon atoms and the carbon atoms to which the polar groups are bonded being bonded to each other via a linking group including the carbon atoms which are not bonded to the polar groups, R2 includes a perfluoropolyether chain represented by Formula (3), and R3 is a hydroxyl group or R1) —(CF2)y-1—O—((CF2)yO)z—(CF2)y-1—??(3) (In Formula (3), y represents an integer of 2 to 4, and z represents an integer of 1 to 30).

Abstract: This fluorine-containing ether compound is represented by Formula (1). R1—R2—CH2—R3—CH2—R4—R5??(1) (in Formula (1), R1 is an aryl group or an aralkyl group, R2 is a divalent linking group having 0 or 1 polar group, R3 is a perfluoropolyether chain, R4 is a divalent linking group having 2 or 3 polar groups, and R5 is an aryl group or an aralkyl group.