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Permanent, removable tissue markings

  • US 7,285,364 B2
  • Filed: 01/08/2007
  • Issued: 10/23/2007
  • Est. Priority Date: 11/20/1998
  • Status: Expired due to Fees
First Claim
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1. A tissue marking ink comprising:

  • a particle comprising;

    (a) a chromophore, which is bleachable upon exposure to a bleaching agent; and

    (b) a submicroparticle comprising a bleaching agent,wherein the submicroparticle is ruptured upon exposure to a specific energy when the particle is within a tissue; and

    a carrier.

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