Blood sampling device and method of using the same

A lancing device comprising:

• a lancet connector for connecting with a lancet which comprises a lancet body and a needle fixed to and extending from the lancet body;
• a reciprocating actuator operably connected to the lancet connector and configured to cause a linear reciprocating motion of the lancet connector along an axis;
• a trigger configured to trigger the reciprocating actuator for causing the linear reciprocating motion of the lancet connector;
• a lancing device body comprising a main body portion, a lancet receiving portion and a tip portion that are arranged in order along the axis and integrated to form a single body;
• the main body portion being configured for gripping with one hand of a person;
• the tip portion comprising a skin contact surface for contacting a skin area from which blood is to be sampled, the tip portion further comprising an opening through which the needle is to travel;
• and
• the lancet receiving portion connecting the main body portion and the tip portion therebetween,
• wherein the lancet connector comprises an engagement portion configured to connect with a counterpart component of the lancet body for integrating the lancet with the lancet connector,
• wherein, upon integrating the lancet with the lancet connector without triggering the reciprocating actuator, the lancet is generally located in or on the lancet receiving portion of the lancing device body, in which the needle extends in a forward direction away from the main body portion along the axis but does not extend beyond the skin contact surface in the forward direction such that a distal end of the needle does not stab the skin area even if the tip portion is place on the skin area,
• wherein, in response to triggering the reciprocating actuator with the trigger a single time, the reciprocating actuator is to cause the linear reciprocation motion of the lancet connector along the axis multiple times such that, when the lancet is integrated with the lancet connector, the lancet advances in the forward direction and retreats in a backward direction toward the main body portion along the axis, by which the distal end of the needle travels in the forward direction and in the backward direction multiple times through the opening between an advanced position and a withdrawn position,
• wherein at the advanced position, the distal end of the needle is beyond the skin contact surface in the forward direction such that the needle could pierce the skin area if the skin area contacts the skin contact surface with the axis generally perpendicular to an imaginary plane of the skin area, wherein at the withdrawn position, the distal end of the needle is closer to the main body portion along the axis than at the advanced position such that the needle could not pierce the skin area even if the skin area contacts the skin contact surface with the axis generally perpendicular to the imaginary plane of the skin area.