Patent ID: 8454642

Claim:
A single-use blade lancet device, comprising: a body comprising a rear end and a front end; a triggering mechanism comprising a blade tip opening, the triggering mechanism being at least one of associated with the body and mounted to the body; a blade member movably mounted within the body and comprising a front end and a rear end; the blade member being movable at least between a first retracted position, an extended position, and a second retracted position; a biasing arrangement that biases the blade member from the first retracted position towards the extended position and then towards the second retracted position; and a guiding arrangement which guides the blade member while the blade member moves from the first retracted position towards the extended position and then towards the second retracted position, wherein, during movement of the blade member, a portion of the blade member moves along a curved path and another portion of the blade member slides in a linear direction which is substantially parallel to an axis extending from the blade tip opening to the rear end of the body, and wherein at least one of: the biasing arrangement is spaced from the triggering mechanism and is not in direct contact with the triggering mechanism; after triggering, the triggering mechanism is arranged completely within the body; and said biasing arrangement is only one unitary biasing element arranged inside the single-use blade lancet device.