Device for collecting a liquid sample by capillarity

An apparatus comprising a device for collecting a liquid sample by capillarity, said device comprising a first element and a second element, wherein said first element comprises a male part, wherein said second element, which is distinct from said first element, comprises a female part, wherein said male part comprises a channel having an transverse section, wherein said channel extends along a longitudinal axis between a first end and a second end, wherein said first end is an input end, wherein said channel is formed by a channel-bottom longitudinal wall bordered by two lateral walls that form sides of the channel, wherein said female part comprises a peripheral wall, wherein said peripheral wall transversely delimits a cavity to house said male part, wherein a part of said peripheral wall forms a first cap to close said transverse section when said female part houses said male part.

A method comprising producing a liquid sample using a sample-collecting device that comprises a first element and a second element, wherein said first element comprises a male part, wherein said second element, which is distinct from said first element, comprises a female part, wherein said male part comprises a channel having an transverse section, wherein said channel extends longitudinally between a first end and a second end, wherein said first end is an input end, wherein said channel is formed by a channel-bottom longitudinal wall bordered by two lateral walls that form sides of the channel, wherein said female part comprises a peripheral wall, wherein said peripheral wall transversely delimits a cavity to house said male part, wherein a part of said peripheral wall forms a cap to close said transverse section when said female part houses said male part, said method comprising forming an analysis chamber and introducing said male part into said female part, wherein forming an analysis chamber comprises functionalizing a zone of said channel.