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Method and/or apparatus for puncturing a surface for extraction, in situ analysis, and/or substance delivery using microneedles

  • US 20050171480A1
  • Filed: 11/22/2004
  • Published: 08/04/2005
  • Est. Priority Date: 11/21/2003
  • Status: Active Grant
First Claim
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1. A microneedle comprising:

  • a needle shaft with a substantially solid tip, said shaft extending substantially vertically above a needle base; and

    an opening nearer to said base;

    such that said tip can puncture a surface in order to deliver or sample fluids with reduced blockage of said opening, said opening being substantially distant from said solid tip.

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