Apparatus for eliciting a blood sample

An apparatus for eliciting a blood sample comprising:

• a housing comprising a wall having a first side and a second side, the wall defining an aperture extending from the first side to the second side of the wall and the wall including a first portion and a second portion;
• an aperture cover moveable between a first position in which the aperture is covered and a second position in which the aperture is uncovered, the aperture cover comprising:
• a first recess configured to slidably receive the first portion of the wall of the housing;
• a second recess configured to slidably receive the second portion of the wall of the housing;
• a sealing member configured to seal the aperture on the first side of the wall when the aperture cover is in the first position, the sealing member being larger than the aperture such that when the aperture cover is in the first position the sealing member extends beyond a perimeter of the aperture to cover and seal the entire aperture from the first side of the wall;
• and
• a user-contactable part extending from the sealing member through the aperture to the second side of the wall and configured to enable a user to move the aperture cover between the first and second positions, the user-contactable part comprising a covering part configured to cover the entire aperture from the second side of the wall when the aperture cover is in the first position;
• and
• a biasing member located between the sealing member and the covering part of the aperture cover and configured to bias the aperture cover towards the first position.