INSTRUMENT AND SYSTEM FOR PRODUCING A SAMPLE OF A BODY LIQUID AND FOR ANALYSIS THEREOF
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Accused Products
Abstract
Instrument for producing a sample of body liquid for analysis by piercing the skin with a lancing element having a skin piercing tip. The instrument has a housing and a lancing drive for driving a lancing element connected thereto in a puncturing movement. A pressure ring surrounds a skin contact opening and is adapted for pressing against the skin. The skin contact opening has an opening area corresponding to a circle with a diameter of at least 1.5 mm and at most 4 mm, and the instrument comprises a pressing force control device for controlling the pressing force between the pressure ring and the skin at the time of triggering the puncturing movement, to be at least 3 N.
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Citations
51 Claims
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1-15. -15. (canceled)
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16. An instrument for producing a sample of body liquid for analysis by piercing the skin with a lancing element having a skin piercing tip,
said instrument having a housing a lancing drive within said housing for being connected to a lancing element and for driving a lancing element connected thereto in a puncturing movement in which the lancing element moves, after triggering the puncturing movement, in a puncture direction until it reaches a point (P) of maximum displacement and in a reverse direction after it has reached the point (P) of maximum displacement, a pressure ring surrounding a skin contact opening and being adapted for pressing against the skin, wherein the skin contact opening has an opening area corresponding to a circle with a diameter of at least 1.5 mm and not more than 4 mm, and the instrument comprises a pressing force control device for controlling the pressing force between the pressure ring and the skin at the time of triggering the puncturing movement, to be at least 3 N.
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21. An instrument for producing a sample of body liquid for analysis by piercing the skin with a lancing element having a skin piercing tip,
said instrument having a housing a lancing drive within said housing for being connected to a lancing element and for driving a lancing element connected thereto in a puncturing movement in which the lancing element moves, after triggering the puncturing movement, in a puncture direction until it reaches a point (P) of maximum displacement and in a reverse direction after it has reached the point (P) of maximum displacement, a pressure ring surrounding a skin contact opening and being adapted for pressing against the skin, wherein the pressure ring has on at least a part of its circumference a width (b) of not more than 1.5 mm.
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31. An instrument for producing a sample of body liquid for analysis by piercing the skin with a lancing element having a skin piercing tip,
said instrument having a housing a lancing drive within said housing for being connected to a lancing element and for driving a lancing element connected thereto in a puncturing movement in which the lancing element moves, after triggering the puncturing movement, in a puncture direction until it reaches a point (P) of maximum displacement and in a reverse direction after it has reached the point (P) of maximum displacement, a pressure ring surrounding a skin contact opening and being adapted for pressing against the skin, wherein the instrument comprises a pressing force control device for controlling the pressing force between the pressure ring and the skin at the time of triggering the puncturing movement, to be at least 3 N, and the lancing drive and the pressure ring are so positioned relative to each other that a projecting distance (s) by which the skin piercing tip of the lancing element extends out of the pressure ring plane when the lancing element is in the point of maximum displacement is not more than 0.3 mm.
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38. An instrument comprising
a sample collection device for collecting an amount of sample liquid required for analysis and a holding device for holding an analysis element in said housing such that a sample of body liquid is transported thereto from the sample collection device for analysis.
Specification