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

Claim 20:
21. An optical shape sensing device comprising:
an elongated outer body configured to maneuver through a passage, the elongated outer body comprising a flexible tubing and a substantially rigid tube connected to a distal end of the flexible tubing;
a disk attached to a distal inner tubing, which extends into a distal side of the substantially rigid tube a distal end of the elongated outer body, the disk being spaced apart from the distal end of the elongated body by a gap when in an uncompressed state;
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 inner tubing; and
a force sensing region substantially coinciding with an area between the distal inner tubing and additional inner tubing located at a proximal side of the rigid tube, and configured to enable determining of an axial force exerted on the disk sensing compression of at least the multicore optical fiber,
wherein the gap closes in response to the axial force until the gap is in physical contact with the distal end of the elongated body, thereby stopping compression of the multicore optical fiber and of the termination piece, and
wherein the shape sensing occurs along the multicore optical fiber to the tip of the termination piece.