Polymer optical fibre for active implantable medical devices (AIMD) and AIMD using same

US12007600B2 · kind B2 · utility

Assignee

• Synergia Medical · BE

Inventors

• Aurélie De Cock De Rameyen · Mont-Saint-Guibert, BE
• Pascal Doguet · Mont-Saint-Guibert, BE
• Vincent Callegari · Corbais, BE
• Aurore Nieuwenhuys · Mont-Saint-Guibert, BE

Key dates

• Filing date: Aug 14, 2019
• Grant date: Jun 11, 2024
• Expiry date: Jun 2, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2203/202
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A polymer optical fibre (POF) (30) for transmitting light of wavelength, λi, between two separate elements of an active implantable medical device (AIMD), includes a core (31) which is cylindrical and made of a cyclic olefin polymer (COP) or copolymer (COC), having a core refractive index at the wavelength, λi, n_core, A cladding (32) which has a cladding refractive index at the wavelength, λi, n_clad<n_core, and which is made of a cladding copolymer including monomers of tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride. The cladding being itself enclosed in a coating (33) which is made of a coating polymer formed of one of the monomers of the cladding copolymer. The POF has a numerical aperture, NA, at the wavelength, λi, of at least 0.5.