Method and apparatus for a body fluid sampling device using illumination
AssigneePelikan Technologies, Inc.
InventorsBarry Dean Briggs, Dominique M. Freeman
Life of this patent
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Abstract
A body fluid sampling device for extracting bodily fluid from an anatomical feature is provided. The device comprises a penetrating member driver for driving a penetrating member to create a wound to extract bodily fluid; a light source positioned to indicate a point of sampling where the wound will be created, the light source indicating the point of sampling with a beam of light. The light source may be selected from one of the following: an LED, incandescent, fluorescent, or electroluminescent light source.
Claims20
A body fluid sampling device for extracting bodily fluid from an anatomical feature, said device comprising:
- a penetrating member driver for driving a penetrating member to create a wound to extract said bodily fluid;
- a light source positioned to indicate a point of sampling where said wound will be created, said light source indicating said point of sampling with a beam of light and
- a sample chamber that includes electrodes, a volume no greater than 1 μL and an analyte detecting member, the sample chamber being positioned to receive fluid from a wound created by said penetrating member, and determine a concentration of an analyte in the fluid using a sample of less than 1 μL of the fluid, wherein when the penetrating member is removed from the sample chamber, the electrodes remain in the sample chamber and the volume of the sample chamber is less than 1 μL;
- a position sensor coupled to the penetrating member drive, the position sensor utilizing position information of the penetrating member to determine a depth of penetration through a skin surface, the depth of penetration providing a volume of sample of less than 1 μL in the sample chamber.
A method comprising:
- providing a penetrating member driver;
- using a light source to project a beam which indicates a point of sampling of a penetrating member actuated by said driver;
- aiming said driver to position said point of sampling at a desired location;
- actuating said driver to advance said penetrating member and create a wound in tissue at the point of sampling;
- and
- receiving fluid from the wound at a sample chamber that includes electrodes, a volume no greater than 1 μL and an analyte detecting member, wherein when the penetrating member is removed from the sample chamber, the electrodes remain in the sample chamber and the volume of the sample chamber is less than 1 μL;
- determining a concentration of an analyte in the fluid in the sample chamber using a sample of less than 1 μL of the fluid;
- and
- utilizing a position sensor coupled to the penetrating member drive to determine a depth of penetration of the penetrating memberthrough a skin surface, the depth of penetration providing a volume of sample of less than 1 μL in the sample chamber.
Dependencies are inferred from the claim text.