Multi-core fiber for a multi-spot laser probe

US11160686B2 · kind B2 · utility

Assignee

• ALCON INC. · CH

Inventors

• Christopher Cook · Laguna Niguel, US
• Chenguang Diao · Irvine, US
• Mark Harrison Farley · Roswell, US
• Alireza Mirsepassi · Irvine, US
• Timothy C. Ryan · Laguna Hills, US

Key dates

• Filing date: Dec 12, 2018
• Grant date: Nov 2, 2021
• Expiry date: Feb 25, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B6/4206
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The present disclosure relates to a multi-core optical fiber cable (MCF). In some embodiments, an MCF comprises a plurality of cores, a cladding surrounding the plurality of cores, wherein a refractive index of one or more of the plurality of cores is greater than a refractive index of the cladding, and a coating surrounding the cladding, a distal end free of the coating and having a reduced diameter. The MCF also comprise an annular gap formed between the distal end of the MCF and the inner surface of the cannula, wherein the concentricity of the distal end of the MCF with the inner passage of the cannula is maintained.