Low pain penetrating member

  • US 10,034,628 B2
  • Filed: 12/20/2012
  • Issued: 07/31/2018
  • Est. Priority Date: 06/11/2003
  • Status: Active Grant
First Claim
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1. A body fluid collection or fluid injection device through a skin, comprising:

  • a housing that includes a top housing and a bottom housing;

    a plurality of penetrating members, each of the penetrating members configured for piercing tissue, wherein the plurality of penetrating members are made from a solid rod of a given diameter and geometry and are configured to reduce area of contact of the penetrating members with a penetrated material, each rod having a primary facet and two secondary side facets that extend from the primary facet and terminate in a penetrating tip;

    a penetrating member driver configured to be coupled to each of the penetrating members, the penetrating member driver coupled to a processor with a retrograde withdrawal force controlled by the processor that is a penetrating member retraction phase imposed on the penetrating member by the penetrating member driver;

    an active braking device having pads to control speed of each of the penetrating members;

    a radial cartridge that contains the plurality of penetrating members, the radial cartridge being loaded into the device by opening the top housing that is hinged to the bottom housing;

    a plurality of cavities in the radial cartridge;

    a visual display coupled to the processor and configured to show measured analyte levels and other feedback to the user; and

    a plurality of analyte sensors, each analyte sensor associated with one of the plurality of penetrating members, each analyte sensor positioned at one of the plurality of cavities.

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