Single use lancet assembly
DCFirst Claim
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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Accused Products
Abstract
A single use lancet device having a housing, with an open interior and an access opening defined therein, a lancet, with a body and a piercing tip, and disposed in the open interior of the housing so as to move between a cocked orientation and a piercing orientation, a driving assembly structured to move the lancet into the piercing orientation, and a restrictor assembly having a shoulder element and a restrictor panel operatively associated with the lancet and the housing and structured to pass over the restrictor panel upon the lancet moving from its cocked orientation to its piercing orientation, and to abut the restrictor panel upon attempted movement of the lancet back into its cocked orientation after movement into the piercing orientation, thereby preventing the lancet from moving back into the cocked orientation and preventing re-use of a contaminated piercing tip.
289 Citations
4 Claims
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1. A single use lancet device comprising:
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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. - View Dependent Claims (2, 3, 4)
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Specification