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MEDICAL APPARATUS SYSTEM HAVING OPTICAL FIBER LOAD SENSING CAPABILITY

  • US 20120078138A1
  • Filed: 11/30/2011
  • Published: 03/29/2012
  • Est. Priority Date: 03/04/2005
  • Status: Active Grant
First Claim
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1. Apparatus for diagnosis or treatment of a vessel or organ, the apparatus comprising:

  • an elongated body having proximal and distal ends and a distal extremity, the distal extremity comprising a deformable material;

    three optical fibers extending through the elongated body and affixed within the distal extremity so that the optical fibers are not co-planar;

    each of the three optical fibers being coupled with at least one optical strain sensor disposed within the distal extremity; and

    a storage device associated with the elongated body, the storage device containing a force-strain conversion matrix that enables computation of a three-dimensional force vector corresponding to a contact force between the distal extremity and a tissue wall of the organ or vessel.

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