A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 3/16 (2006.01)
Patent
CA 2482359
An apparatus (180) for measuring intraocular pressure (IOP) comprises a contact lens (40) including an inner surface (42) contoured to a surface portion (34) of an eye (36) and a sensor (10) disposed in the contact lens. The sensor (10) comprises a contact surface (14) for making contact with the surface portion (34) of the eye (36). The contact surface (14) includes an outer non-compliant region (16) and an inner compliant region (18) fabricated as an impedance element that varies in impedance as the inner compliant region changes shape. The sensor (10) further comprises a region of conductive material (38) electrically coupled to the impedance element of the compliant region (18) and responsive to an external signal for energizing the impedance element so that the IOP may be determined.
La présente invention a trait à un appareil (180) destiné à la mesure de la tension intraoculaire comportant un verre de contact (40) comprenant une face interne (42) profilé pour épouser le contour de la portion superficielle (34) d'un oeil (36) et un capteur (10) disposé dans le verre de contact. Le capteur (10) comprend une surface de contact (14) pour venir en contact avec la portion superficielle (34) de l'oeil (36). La surface de contact (14) comporte une zone externe non flexible (16) et une zone interne flexible (18) conformée sous la forme d'un élément d'impédance qui varie en impédance au fur et à mesure que la forme de la zone interne flexible se modifie. Le capteur (10) comporte en outre une zone de matériau conducteur (38) reliée électriquement à l'élément d'impédance de la zone flexible (18) et sensible à un signal externe destiné à l'excitation de l'élément d'impédance en vue de la détermination de mesure de la tension intraoculaire.
Fleischman Aaron J.
Lewis Hilel
Roy Shuvo
Sim & Mcburney
The Cleveland Clinic Foundation
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