CPC A61M 25/10187 (2013.11) [A61B 5/06 (2013.01); A61B 5/6853 (2013.01); A61M 25/104 (2013.01); G01D 5/35316 (2013.01); A61B 2034/2061 (2016.02); A61B 2090/3966 (2016.02)] | 18 Claims |
1. A sensor device, comprising:
a flexible instrument including at least one lumen and having a reconfigurable portion less than a length of the flexible instrument; and
a plurality of optical fibers integrated in the flexible instrument in the at least one lumen and extending over the length of the flexible instrument, the plurality of optical fibers being configured for measuring movement relative to one another to sense a change in distance between the plurality of optical fibers to detect a state of the reconfigurable portion of the flexible instrument, wherein the plurality of optical fibers comprises:
a principal optical fiber having a first launch position at or near a proximal position of the flexible instrument and configured for measuring a shape of the flexible instrument along the length of the flexible instrument from the first launch position, and
at least one supplemental optical fiber having a second launch position at or near the reconfigurable portion of the flexible instrument and configured for measuring a shape of only the reconfigurable portion of the flexible instrument from the second launch position to detect the state of the reconfigurable portion of the flexible instrument.
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