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Lancet Assembly and Pricking Device

  • US 20090299398A1
  • Filed: 06/05/2007
  • Published: 12/03/2009
  • Est. Priority Date: 06/13/2006
  • Status: Abandoned Application
First Claim
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1. A pricking device comprising a lancet assembly and an injector;

  • wherein the lancet assembly comprising a lancet and a lancet holder that houses the lancet, wherein the lancet comprises a lancet body, a lancet cap and a pricking component in which the lancet body and the lancet cap are made of resin and the pricking component is made of metal, the pricking component is situated in both of the lancet body and the lancet cap, the tip of the pricking component is covered with the lancet cap, and the lancet cap and the lancet body are integrally connected together by a bridging component;

    wherein the injector used in combination with the lancet assembly is capable of launching the pricking component, the injector comprising a plunger that is capable of engaging with the rear end portion of the lancet body, and thus capable of launching the lancet body in the pricking direction;

    a lancet cap removing part that is capable of making contact with the lancet cap; and

    a trigger lever that is pressed to launch the pricking component, wherein the lancet assembly can be loaded into the injector by inserting the lancet holder into the injector through a front end opening of the injector;

    wherein the lancet holder has a notched portion formed on an edge of the opening end thereof, whereas a plate spring component made of metal is provided on the inner wall of an injector housing at the front side of the injector,the one end of the plate spring component is attached to the inner wall of the injector housing, whereas the other end of the plate spring component is a free end with a hook-shaped portion formed in the tip region thereof, andwhen the spent lancet assembly whose lancet body has been launched in the pricking direction is inserted through the front end opening of the injector, the notched portion of the lancet holder engages with the hook-shaped portion of the plate spring component, and thereby a further insertion of the lancet holder into the injector is prevented.

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