• US 20130150876A1
  • Filed: 01/15/2013
  • Published: 06/13/2013
  • Est. Priority Date: 11/02/1999
  • Status: Active Grant
First Claim
Patent Images

1. A single use lancet device comprising:

  • a housing;

    a lancet having a piercing tip;

    said lancet moveable relative to said housing at least between a cocked orientation and a piercing orientation;

    a biasing element structured to bias said lancet at least temporarily into said piercing orientation;

    a restrictor, at least part of said restrictor being independent of said biasing element and said lancet, and when engaged, said restrictor being structured to prevent said lancet from moving back into said cocked orientation, after movement of said lancet into said piercing orientation, as a result of an implement contacting and pushing said lancet;

    said restrictor comprising an abutment structure including a biased finger having a shoulder element and a restrictor panel including a protruding element;

    said protruding element including a sloped configuration structured to facilitate passage thereof past said biased finger upon said lancet moving to said piercing orientation;

    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; and

    at least one of said shoulder element and said restrictor panel structured to retract out of a normal unretracted orientation during passage past one another and to expand back to said normal unretracted orientation after passage past one another, 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.

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