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Tissue penetration device

  • US 20090131964A1
  • Filed: 12/16/2008
  • Published: 05/21/2009
  • Est. Priority Date: 04/19/2002
  • Status: Active Grant
First Claim
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1. A penetrating member system for withdrawing body fluid from a body part, comprising:

  • a housing;

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

    a deformable member sealing the housing; and

    wherein, during a puncture 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 puncture movement and enlarging the opening.

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