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Tissue penetration device

  • US 8,562,545 B2
  • Filed: 12/16/2008
  • Issued: 10/22/2013
  • 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,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; and

    the deformable member configured to reseal after a penetrating member tip has penetrated it without physically affecting the penetrating member'"'"'s cutting tip and edges;

    wherein the housing includes a first end and a second end, the first end including the deformable member and the second end having a second film.

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