Blood tracking system

  • US 7,290,896 B2
  • Filed: 08/02/2005
  • Issued: 11/06/2007
  • Est. Priority Date: 08/03/2004
  • Status: Expired due to Fees
First Claim
Patent Images

1. A blood tracking system comprising:

  • a light source, comprising a first LED configured to emit blue light and a second LED configured to emit red light;

    wherein the blue light and the red light are mixed to provide a mixed spot that appears as magenta when the first LED and the second LED are activated; and

    wherein the mixed spot highlights blood.

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