Medical apparatus system having optical fiber load sensing
First Claim
1. A device for introduction into a vessel or organ having a tissue wall, comprising:
- an elongate body for traversing a body passageway, the elongate body having a distal extremity for contacting a tissue wall of the vessel or organ;
optical fiber contact force sensors configured for resolution of a multi-dimensional force vector responsive to a contact force between the distal extremity and tissue wall of the organ or vessel; and
a deflection mechanism disposed in the elongate body, the deflection mechanism configured to deflect the elongate body at a location proximal of the distal extremity.
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Accused Products
Abstract
Apparatus is provided for diagnosing or treating an organ or vessel, wherein a device having at optical fiber contact force sensors disposed in a distal extremity thereof and a deflection mechanism configured to deflect the elongate body at a location proximal of the distal extremity. The optical fiber contact force sensors are configured to be coupled to processing logic programmed which computes a force vector responsive to detected changes in the optical characteristics of the optical fiber contact force sensors arising from deflection of the distal extremity resulting from contact with the tissue of the wall of the organ or vessel.
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Citations
40 Claims
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1. A device for introduction into a vessel or organ having a tissue wall, comprising:
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an elongate body for traversing a body passageway, the elongate body having a distal extremity for contacting a tissue wall of the vessel or organ; optical fiber contact force sensors configured for resolution of a multi-dimensional force vector responsive to a contact force between the distal extremity and tissue wall of the organ or vessel; and a deflection mechanism disposed in the elongate body, the deflection mechanism configured to deflect the elongate body at a location proximal of the distal extremity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. Apparatus for ablating tissue in a vessel or organ, the apparatus comprising:
- an elongate body having proximal and distal ends and a distal extremity, the distal extremity comprising a deformable material and an ablator configured to ablate tissue upon contact of the ablator and introduction of radiofrequency energy to the ablator, the distal extremity further comprising an irrigation channel having a wall disposed with the distal extremity, the wall comprising a material having a coefficient of thermal expansion lower than a coefficient of thermal expansion of the deformable material; and
optical fibers comprising optical contact force sensors affixed to the distal extremity, the optical contact force sensors configured to provide an output corresponding to the value of a contact force between the distal extremity and tissue of the organ or vessel; and
a deflection mechanism disposed in the elongate body, the deflection mechanism configured to deflect the elongate body at a location proximal of the distal extremity. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
- an elongate body having proximal and distal ends and a distal extremity, the distal extremity comprising a deformable material and an ablator configured to ablate tissue upon contact of the ablator and introduction of radiofrequency energy to the ablator, the distal extremity further comprising an irrigation channel having a wall disposed with the distal extremity, the wall comprising a material having a coefficient of thermal expansion lower than a coefficient of thermal expansion of the deformable material; and
Specification