A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 3/16 (2006.01)
Patent
CA 2726935
The invention is characterized in that it comprises a truncated contact lens (1), whose truncation plane is parallel to the base of said contact lens, and a polymeric nanocomposite material (2) centrally disposed and attached to the perimeter of the truncated area, said material being sensitive to pressure changes, biocompatible and transparent, and including contact electrodes (3), and in that it also comprises means for transmitting IOP measurement data to an external system. The invention also relates to a method for measuring IOP using said lens comprising: i) placing said sensor contact lens in the eye to determine its intraocular pressure; ii) providing a direct current value between external electrodes; iii) .DELTA.V measurement between internal electrodes; and iv) identifying whether the value obtained is outside the linear response, expressed in changes of resistivity, of the polymeric nanocomposite material. The invention also relates to a telemetry system comprising said lens.
La invención se caracteriza porque comprende una lente de contacto truncada (1 ), cuyo plano de truncamiento es paralelo a Ia base de dicha lente de contacto, y un material nanocompuesto polimérico (2) dispuesto centradamente y unido al perímetro de Ia zona trucada, siendo dicho material sensible a los cambios de presión, biocompatible y transparente e incluyendo electrodos de contacto (3), y por el hecho de que además comprende medios de transmisión de datos de medida de Ia PIO a un sistema externo. La invención también se refiere a un método de medición de Ia PIO utilizando dicha lente que comprende: i) colocar dicha lente de contacto sensora en un ojo a determinar su presión intraocular; ii) suministrar un valor de corriente continua entre electrodos externos; iii) medir ?V entre electrodos internos; e iv) identificar si el valor obtenido está fuera de Ia respuesta lineal, expresada en cambios de resistividad, del material nanocompuesto polimérico. La invención también se refiere a un sistema de telemetría que comprende dicha lente.
Aguilo Llobet Jordi
Guimera Anton
Laukhin Vladimir
Laukhina Elena
Martin Herranz Raul
Brion Raffoul
Ciber-Bbn
Consejo Superior de Investigaciones Cientieficas
Institucio Catalana de Recerca I. Estudis Avancats
Universidad Autonoma de Barcelona
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