Extended fiber optic sensing system

A medical system for sensing one or more parameters experienced by an elongate medical device inserted within a patient body, the system comprising:

• an elongate multi-core optical fiber instrument comprising:
• a set of first optical fiber cores extending along a first sensing region of the multi-core optical fiber instrument, each first optical fiber core comprising a set of first sensors disposed along the first sensing region;
• a set of second optical fiber cores extending along a second sensing region of the multi-core optical fiber instrument, each second optical fiber core comprising a set of second sensors disposed along the second sensing region, wherein:
• the multi-core optical fiber instrument is incorporated into the elongate medical device,
• the medical device is one of an introducer wire, a guidewire, a stylet, a probe, a sheath, a mesh, a tube, an obturator, or a catheter;
• the first sensing region is located distal the second sensing region,
• the first optical fiber cores extend along the second sensing region, and
• the second optical fiber cores extend from a proximal end of the multi-core optical fiber instrument and terminate at a transition point between the first sensing region and the second sensing region;
• a set of third optical fiber cores extending along a length of the multi-core optical fiber instrument, each third optical fiber core comprising a set of third sensors disposed along the length of the multi-core optical fiber instrument, wherein the third sensors are configured to determine a physiological parameter of the patient body;
• and
• a console including one or more processors and a non-transitory computer-readable medium having stored thereon logic that, when executed by the one or more processors, causes operations including:
• providing an incident light signal to the multi-core optical fiber instrument,
• receiving reflected light signals from the first sensors across a set of first spectral widths,
• receiving reflected light signals from the second sensors across a set of second spectral widths, the second spectral widths being a subset of the first spectral widths,
• receiving reflected light signals from the third sensors across the first spectral width,
• processing the reflected light signals associated with the first sensors, and the second sensors, and the third sensors,
• determining a shape of the multi-core optical fiber instrument along the first sensing region from reflected light associated with the first sensors,
• determining a shape of the multi-core optical fiber instrument along the second sensing region from reflected light associated with the second sensors,
• determining a physiological parameter of the patient body from reflected light associated with the third sensors, and causing a rendering on a graphical display depicting the physiological parameter along the multi-core optical fiber instrument in combination with the shape of the multi-core optical fiber instrument along the first sensing region and the second sensing region.