Apparatus for eliciting a blood sample

An apparatus for eliciting a blood sample comprising:

• a housing having an aperture;
• a shaft extending in the housing;
• a testing member having a first part mounted on the shaft, a second part configured to co-rotate with the first part, and a slot formed between the first part and the second part such as to allow relative movement of the first and second parts;
• and
• a lancet protruding radially from the second part;
• wherein the testing member is configured such that the second part translates, in the presence of a force exerted against the testing member by an actuator, relative to the first part from a retracted position to a skin penetrating position in which the lancet is displaced towards the aperture.