Patent ID: 8034069

Claim:
A single use lancet device comprising: a housing; a lancet; said lancet including a piercing tip; said lancet at least partially disposed in said housing and structured to move at least between a cocked orientation and a piercing orientation; a biasing element structured to move said lancet at least temporarily into said piercing orientation; an actuator structured to be actuated by a user so as to result in said biasing element moving said lancet at least temporarily into said piercing orientation; a restrictor assembly, at least part of said restrictor assembly being independent of said biasing element, and said lancet, and when engaged structured to prevent said lancet from being moved back into said cocked orientation after movement of said lancet at least temporarily into said piercing orientation as a result of an implement pushing merely said lancet; said restrictor assembly comprising an abutment structure including a shoulder element and a restrictor panel; said restrictor panel and said shoulder element structured to pass one another upon said lancet moving from said cocked orientation to said piercing orientation and to abut one another upon attempted movement of said lancet into said cocked orientation after movement into said piercing orientation; said shoulder element structured to retract out of a normal unretracted orientation during passage past said restrictor panel and to expand back to said normal unretracted orientation after passage past said restrictor panel, so as to facilitate passage of said restrictor panel and said shoulder element past one another in a first direction corresponding to movement of said lancet from said cocked orientation to said piercing orientation and to block movement of said restrictor panel in a second direction, generally opposite to the first direction, subsequent to said passage past one another in the first direction; and said shoulder element comprising a biased finger extending from and attached directly to said lancet and said restrictor panel comprising a protruding element protruding from and directly attached to a side wall of said housing.