Mehrkernglasfaser und Längliche Vorrichtung für Medizinische Interventionelle Anwendung

Details

Veröffentlichungs-Nr.

EP4729883

Anmeldetag

18. Oktober 2024

Veröffentlichung

22. April 2026

Rechtsraum

EP

IPC

G01B11/16, A61B1/005, G02B6/02(圣犹达医疗用品国际控股有限公司)

Abstract

The present invention relates to a multicore optical fiber (10) configured for optical shape sensing. The optical fiber (10) comprises a cladding (12) and a plurality of fiber cores (14, 16, 18, 20) embedded in the cladding (12). The fiber cores (14, 16, 18, 20) each have a reflective strain sensitive structure (21) responsive to strain in the optical fiber (10). The cladding (12) comprises, along a length of the optical fiber (10), a main section (22) and a distal tip section (24) arranged distally from the main section (22). The main section (22) has a first width along a first axis transverse to a longitudinal axis of the optical fiber (10) and a first number of fiber cores, and the tip section (24) has a second width along a second axis parallel to said first axis and a second number of fiber cores. The second width is reduced with respect to the first width such that a bending stiffness of the tip section (24) about a bending axis orthogonal to said second axis is lower than the bending stiffness of the main section (22) about a bending axis orthogonal to said first axis. An elongated device for medical interventional application comprising such a multicore optical fiber is also disclosed.

Anmelder

Firma

Koninklijke Philips N.V.

Land

🇳🇱 Niederlande

Fachgebiete