Tissue penetration device

  • US 9,248,267 B2
  • Filed: 07/18/2013
  • Issued: 02/02/2016
  • Est. Priority Date: 04/19/2002
  • Status: Active Grant
First Claim
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1. A penetrating member system for injecting a medicament to a body part, comprising:

  • a housing;

    a penetrating member positioned in the housing, the penetrating member including a widened portion and a tip;

    a medicament injection source configured to be coupled to the penetrating membera deformable member sealing the housing;

    wherein, during a medicament injection movement of the penetrating member, the tip pierces the deformable member to produce an opening in the deformable member, the widened portion contacting the deformable member during the injection movement and enlarging the opening; and

    a cover sheet with a proximal surface with a spatial separation from a distal surface of a lancet cartridge body at a penetrating member channel site, the spatial separation of the proximal surface of the cover sheet from a distal surface of the lancet cartridge body being between the two surfaces that is formed into the distal surface of the lancet cartridge body,the deformable member configured to reseal after the penetrating member tip has penetrated it while injection medicament from the medicament injection source;

    wherein, during the injection movement, the portion of the deformable member pierced by the tip becomes flared.

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