Importance

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Abstract

There is provided the pricking device that allows it to load the unspent lancet assembly into the injector, and that inhibits loading of the unspent lancet assembly into the injector. The pricking device has the notched portion formed on the edge of the opening end of the lancet holder, and the plate spring component is provided on the inner wall of the housing of the injector. One end of the plate spring component is secured to the injector housing, whereas the other end of plate spring component is free end, and the tip end portion of the free end being provided with the hook-shaped portion. In the spent lancet assembly, the notched portion engages with the hook-shaped portion so that the loading becomes impossible. In the unspent lancet assembly in which the lancet body is secured to the lancet holder such that the protrusion of the lancet body is located rearward with respect to the notched portion, the protrusion serves to expand the free end outwardly so that the notched portion does not engage with the hook-shaped portion. As a result, the unspent lancet assembly can be inserted into the injector.

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First Claim