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Non-fouling surfaces for reflective spheres

  • US 8,486,532 B2
  • Filed: 11/21/2011
  • Issued: 07/16/2013
  • Est. Priority Date: 04/30/2008
  • Status: Active Grant
First Claim
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1. A reflective substrate comprising a reflective sphere which is configured to be placed on a surgical instrument for use in surgical robotic and navigation systems, the reflective sphere comprising a, liquidphobic structure comprising an organic coating on a sub-micron structured surface of the sphere, wherein the sub-micron textured surface comprises fumed silica nanoparticles adhered to the sphere, and wherein the sphere substantially maintains its reflective properties after the sphere is contacted with a liquid.

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