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, said device further comprising a plate that extends in a plane of said male part, wherein said plate forms a gripping heel on which said male part is assembled, wherein said plate comprises a protruding portion that faces a plate of said heel.

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, wherein said sample-collecting device further comprises a plate having a rectangular transverse section and a top longitudinal face, wherein said plate forms said male part, wherein said channel is disposed at a level of said top longitudinal face, 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.