Patent ID: 11857268
Assignee: KONINKLIJKE PHILIPS N.V.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 15:
16. An optical shape sensing device comprising:
an elongated outer body configured to maneuver through a passage, the elongated outer body comprising a proximal substantially rigid portion and a distal substantially rigid portion separated by a space;
a multicore optical fiber extending through the elongated outer body the multicore optical fiber enabling shape sensing by tracking positioning of the multicore optical fiber;
a termination piece attached to a distal tip of the multicore optical fiber, the termination piece comprising a distal tip and located within the distal substantially rigid portion; and
a force sensing region substantially coinciding with the space separating the proximal and distal substantially rigid portions, and configured to enable determining of an axial force exerted on a distal end of the elongated body by sensing an amount of torsion of the multicore optical fibers, wherein the proximal and distal substantially rigid portions are configured to rotate with respect to one another in response to the axial force being exerted on the distal end of the elongated body, the rotation causing the torsion of the multicore optical fibers,
wherein the shape sensing occurs along the multicore optical fiber to the tip of the termination piece.