Abstract: The present invention relates to an intraocular pressure measuring and/or monitoring device (1) comprising a contact lens (10) presenting an inner surface (101) and an outer surface (102), and a pressure sensor (2) united with said contact lens (10) and located such that it is applied against an eye (8) of a user for sensing the intraocular pressure (IOP) of said eye (8) when said contact lens (10) is worn by said user, characterized in that said contact lens (10) comprises a soft portion (11) and a rigid portion (12), said rigid portion (12) being adapted to at least partially rigidify a central portion of the inner surface (101) of said contact lens (10) so as to maintain said rigidified inner surface (101) with a curvature radius adapted to flatten at least a portion of the eye surface in contact with the pressure sensor (2) so as to reach a pressure equilibrium around the pressure sensor (2) when said contact lens (10) is worn by said user.
Type:
Grant
Filed:
July 6, 2018
Date of Patent:
April 16, 2024
Assignee:
SENSIMED AG
Inventors:
Sacha Cerboni, Mario Schlund, Thierry Varidel, Raphaël Fritschi, Adrian Paraschiv
Abstract: The present invention relates to an intraocular pressure measuring and/or monitoring device (1) comprising a contact lens (10) presenting an inner surface (101) and an outer surface (102), and a pressure sensor (2) united with said contact lens (10) and located such that it is applied against an eye (8) of a user for sensing the intraocular pressure (IOP) of said eye (8) when said contact lens (10) is worn by said user, characterized in that said contact lens (10) comprises a soft portion (11) and a rigid portion (12), said rigid portion (12) being adapted to at least partially rigidify a central portion of the inner surface (101) of said contact lens (10) so as to maintain said rigidified inner surface (101) with a curvature radius adapted to flatten at least a portion of the eye surface in contact with the pressure sensor (2) so as to reach a pressure equilibrium around the pressure sensor (2) when said contact lens (10) is worn by said user.
Type:
Application
Filed:
July 6, 2018
Publication date:
July 8, 2021
Applicant:
SENSIMED AG
Inventors:
Sacha CERBONI, Mario SCHLUND, Thierry VARIDEL, Raphaël FRITSCHI, Adrian PARASCHIV
Abstract: An intraocular pressure monitoring device comprises a soft contact lens (1) such as a silicone contact lens and an active strain gage (2) fixed to the contact lens (1), the active strain gage (2) being placed at a distance from the center (C) of the contact lens and being not in direct contact with the eye, wherein the active strain gage comprises a polygonal portion situated around the center (C) of the contact lens.