Body fluid sampling unit

A method of obtaining a body fluid sample from a living body and using the body fluid sample comprising:

• positioning a body fluid sampling implement on a component measuring device, the body fluid sampling implement being located inside a container in a gas-tight environment before the body fluid sampling implement is positioned on the component measuring device, the body fluid sampling implement being configured to obtain a sample of the body fluid and including a reagent containing part comprising a reagent adapted to interact with a predetermined component of the sample of the body fluid, the component measuring device being configured to be operated, when the body fluid sampling implement is positioned on the component measuring device, to measure at least one of a quantity and a property of the predetermined component of the sample of the body fluid obtained by the body fluid sampling implement;
• puncturing a surface of the living body with a needle located inside the container by moving the needle relative to the container to produce the body fluid from which the body fluid sampling implement obtains the sample of the body fluid;
• and
• introducing the sample of the body fluid to the reagent containing part of the body fluid sampling implement so that the reagent interacts with the predetermined component in the body fluid sample.

A method of obtaining a body fluid sample from a living body and using the body fluid sample comprising:

• moving a body fluid sampling implement from a housed position to an un-housed position, the body fluid sampling implement in the housed position being located inside a case such that an outer periphery of the body fluid sampling implement contacts an inner periphery of the case so that the contact between the case and the body fluid sampling implement prevents a force applied to the case from releasing an engagement between a part of the case and an engaging piece, the body fluid sampling implement in the un-housed position being outside the case so that the outer periphery of the body fluid sampling implement is not in contact with the inner periphery of the case, the body fluid sampling implement including a reagent containing part comprising a reagent adapted to interact with a predetermined component of a sample of the body fluid, the engaging piece being located inside the case and connected to a needle possessing a sharp distal end;
• applying a force to the case after the body fluid sampling implement is moved to the un-housed position to cause the engaging piece to be disengaged from the case, and moving the needle when the engaging piece is disengaged from the case;
• puncturing a surface of the living body with the sharp distal end of the moving needle to obtain the body fluid;
• and
• introducing a sample of the body fluid obtained by the puncturing to the reagent containing part of the body fluid sampling implement so that the reagent interacts with the predetermined component in the body fluid sample.