WO2017191612A2 - Portable device for measuring intraocular pressure using hall effect sensors - Google Patents
Portable device for measuring intraocular pressure using hall effect sensors Download PDFInfo
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- WO2017191612A2 WO2017191612A2 PCT/IB2017/052635 IB2017052635W WO2017191612A2 WO 2017191612 A2 WO2017191612 A2 WO 2017191612A2 IB 2017052635 W IB2017052635 W IB 2017052635W WO 2017191612 A2 WO2017191612 A2 WO 2017191612A2
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- Prior art keywords
- intraocular pressure
- hall effect
- measurement
- patient
- effect sensors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/16—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for measuring intraocular pressure, e.g. tonometers
Definitions
- the present invention relates to a device for measuring intraocular pressure, commonly referred to as a glauchometer or tonometer, which has a series of sensors that measure the intraocular pressure through the Hall effect and can determine whether the value Obtained and measured in immHg (millimeters of mercury) exceeds a predetermined threshold to indicate if the patient has glaucoma and treatment should be started immediately, where the device has the advantages that it is completely portable, sealed, does not require calibration or maintenance, and it has a commercial battery, which is why it can be used by any individual without medical education who can alert him to his vision condition and thus avoid losing it by having the time to consult a specialist.
- immHg millimeters of mercury
- IOP intraocular pressure
- intraocular comprising a flattener formed of an optical array, a force transducer, an image sensor, and a processing circuit configured to calculate an intraocular pressure (IOP) of the eye using one or more wall of measured force and flattened area, in where the device has a disposable tip that covers the flattener, thus providing a sterile method for measurement and, moreover, is preferably portable.
- IOP intraocular pressure
- the device described in the foregoing presents the disadvantage that the measurement method is by means of flatteners and image sensors, which makes it a device that is not simple to use, while coming into direct contact with the eye and requires additional medications that must be applied to perform the measurement. Additionally, upon contact with the patient's eye, disinfection of some parts of the device or the disposal of the part is required, which results in high costs, which is undesirable.
- CN 201055376 discloses a portable digital tonometer composed of a detection head, a sensor, connection parts, an operational amplifier, a simple chip, an LCD screen, etc., where the detection head it is connected with a spring that is connected with a push rod, where the lower end of the rod is contacted with the front film of a gasket, a clamping ring is connected with the gasket, where the lower end of the same is connected with the sensor by means of a sealing ring.
- the device described in this document has the disadvantage that the measurement is shown on a screen and requires complex operation, a fact that may be undesirable for the medical professional, since the operating costs may be greater at the time it is It requires constant calibration and returns to the device difficult to handle, handle and maintain.
- an air pressure measurement sensor is installed in the central part of the device and measures the intensity of air pressure spread and the intensity of the air pressure that is reflected from the cornea. Then, a controller connected to the sensor analyzes the information and displays it.
- the principle of operation is based on an air injection system in the eye, which is an uncomfortable process and prevents the patient from making multiple measurements to track and detect an eye disease According to the above, it can be clearly seen that there is currently a problem related to the timely detection of glaucoma and the possible loss of vision due to this disease, where more people suffer from a high intraocular pressure that eventually affects vision and reduces it to the point of losing it.
- IOP intraocular pressure
- the present invention solves the problem in an efficient manner, since it corresponds to a device for the measurement of intraocular pressure (IOP) by means of flattening and the use of a spring and a series of hall effect sensors that allow a patient contact element to be allowed to touch the external part of the eyelid without an invasive procedure, and an adequate measurement is obtained and whether or not this measurement exceeds a predetermined threshold In order to consult the specialist, where this measurement is simple to perform and does not require qualified personnel or special equipment for it.
- IOP intraocular pressure
- the present invention is directed to a portable device that allows the measurement of intraocular pressure by a non-invasive, easy and fast process, which is based on the Hall effect principle for performing said measurement and depending on a predetermined threshold value, informs the user if a specific intraocular pressure value has been exceeded so that the respective measures can be taken to avoid glaucoma in patients.
- the most important and relevant features of the present invention that make it different from similar devices existing in the state of the art, correspond firstly to the use of the flattening principle by means of springs and a series of sensors that according to the resistance received when the measurement is made, they determine the pressure infraocular and allow to indicate if a predetermined threshold has been exceeded, while it is simple to operate and does not require maintenance or calibration.
- Figure 1 shows a diagram of the device of the present invention with its respective components.
- the present invention is directed to a device for the measurement of infraocular pressure, which is based on the principle of flattening and is not invasive since the measurement is taken without direct contact with the eye but is performed on the eyelid, where The device is completely portable and sealed and does not require of any type of maintenance or calibration.
- the device of the invention comprises the following components:
- a contact rod (1) with the patient which has a series of magnets, preferably neodimium
- a displacement circuit (4) that has a series of hall effect sensors.
- the device of the present invention is simple, easy to use and easy to manufacture, since it bases its operation on the flattening of a series of sensors and instead of indicating the exact measurement of intraocular pressure at a given time. and having a fairly high margin of error, the device of the invention simply uses a light signal that indicates whether a predetermined threshold value has been exceeded and thus determines whether the pressure corresponds to an eye suffering from or suffering from glaucoma.
Abstract
The present invention relates to a device for measuring intraocular pressure, commonly known as a glucometer or tonometer, comprising a series of sensors which, using the Hall effect, measure intraocular pressure and can determine if the value obtained and measured in mmHg (millimeters of mercury) exceeds a given threshold, thereby indicating if the patient has glaucoma and if immediate treatment is required. The device is advantageous in that it is completely portable, sealed, requires no calibration or maintenance, and includes a commercial battery. As a result, the device can be used by any individual without any medical training and can alert the user of a vision condition, thereby preventing loss of vision by giving the user time to consult a specialist.
Description
DISPOSITIVO PORTÁTIL PARA LA MEDICIÓN DE LA PRESIÓN PORTABLE DEVICE FOR PRESSURE MEASUREMENT
INTRAOCULAR MEDIANTE SENSORES DE EFECTO HALL INTRAOCULAR THROUGH HALL EFFECT SENSORS
CAMPO TÉCNICO TECHNICAL FIELD
La presente invención se relaciona con un dispositivo para la medición de la presión intraocular, denominado comúnmente como glaucómetro o tonómetro, el cual cuenta con una serie de sensores que por medio del efecto Hall toman la medida de la presión intraocular y pueden determinar si el valor obtenido y medido en immHg (milímetros de mercurio) supera un umbral predeterminado para así indicar si el paciente cuenta con glaucoma y se debe empezar un tratamiento de forma inmediata, donde el dispositivo presenta las ventajas que es completamente portátil, sellado, no requiere de calibración o mantenimiento, y cuenta con una batería comercial, razón por la cual puede ser utilizado por cualquier individuo sin educación médica que lo puede alertar de su condición de visión y así evitar la pérdida de la misma al tener el tiempo de consultar un especialista. The present invention relates to a device for measuring intraocular pressure, commonly referred to as a glauchometer or tonometer, which has a series of sensors that measure the intraocular pressure through the Hall effect and can determine whether the value Obtained and measured in immHg (millimeters of mercury) exceeds a predetermined threshold to indicate if the patient has glaucoma and treatment should be started immediately, where the device has the advantages that it is completely portable, sealed, does not require calibration or maintenance, and it has a commercial battery, which is why it can be used by any individual without medical education who can alert him to his vision condition and thus avoid losing it by having the time to consult a specialist.
ANTECEDENTES DE LA INVENCION BACKGROUND OF THE INVENTION
Actualmente, la medición de la presión intraocular (PIO) es un procedimiento que se debe realizar con cierta frecuencia, especialmente en pacientes con edades
avanzadas o con algún tipo de herencia de problemas oculares, toda vez que el glaucoma es una enfermedad que puede ser tratada y es reversible siempre y cuando se detecte a tiempo y se puedan realizar los respectivos procedimientos médicos. Currently, the measurement of intraocular pressure (IOP) is a procedure that must be performed with some frequency, especially in patients with ages advanced or with some type of inheritance of eye problems, since glaucoma is a disease that can be treated and is reversible as long as it is detected in time and the respective medical procedures can be performed.
No obstante, esta medición no se realiza con la frecuencia que debería, ya que es un procedimiento que realiza un médico especializado en oftalmología por medio de una serie de dispositivos que entran en contacto con la córnea y por lo tanto, se requiere de medicamentos y anestésicos que se aplican directamente en el ojo, hecho que es indeseable para el paciente promedio, por ende, existe un rechazo generalizado por este tipo de procesos lo que lleva a problemas de salud relacionados con glaucoma que se detecta en etapas avanzadas cuando no se puede revertir o corregir. Así las cosas, en el estado del arte existe una pluralidad de divulgaciones relacionadas con dispositivos portátiles para realizar la medición de la PIO, dentro de las que se encuentra el documento US 2004236204, el cual describe un tonómetro de aplanamiento para la medición de la presión intraocular que comprende un aplanador formado de un arreglo óptico, un transductor de fuerza, un sensor de imagen, y un circuito de procesamiento configurado para calcular una presión intraocular (PIO) del ojo usando uno o más pared de fuerza medida y área aplanada, en donde el dispositivo cuenta con una punta desechable que
cubre el aplanador, suministrando de esta forma un método estéril para la medición y además, preferiblemente es portátil. However, this measurement is not carried out as often as it should, since it is a procedure performed by a doctor specializing in ophthalmology through a series of devices that come into contact with the cornea and therefore, medication and anesthetics that are applied directly to the eye, a fact that is undesirable for the average patient, therefore, there is a generalized rejection by this type of processes which leads to health problems related to glaucoma that is detected in advanced stages when it cannot be reverse or correct. Thus, in the state of the art there is a plurality of disclosures related to portable devices to perform the IOP measurement, within which is US 2004236204, which describes a flattening tonometer for pressure measurement. intraocular comprising a flattener formed of an optical array, a force transducer, an image sensor, and a processing circuit configured to calculate an intraocular pressure (IOP) of the eye using one or more wall of measured force and flattened area, in where the device has a disposable tip that covers the flattener, thus providing a sterile method for measurement and, moreover, is preferably portable.
No obstante lo anterior, el dispositivo descrito en esta anterioridad presenta la desventaja que el método de medición es por medio de aplanadores y sensores de imagen, lo cual lo hace un dispositivo que no es simple de uso, al tiempo que entra en contacto directo con el ojo y requiere de medicamentos adicionales que se deben aplicar para realizar la medición. Adicionalmente, al entrar en contacto con el ojo del paciente, se requiere de desinfección de algunas partes del dispositivo o del desecho de la parte, lo cual se traduce en costos elevados, hecho que es indeseable. Notwithstanding the foregoing, the device described in the foregoing presents the disadvantage that the measurement method is by means of flatteners and image sensors, which makes it a device that is not simple to use, while coming into direct contact with the eye and requires additional medications that must be applied to perform the measurement. Additionally, upon contact with the patient's eye, disinfection of some parts of the device or the disposal of the part is required, which results in high costs, which is undesirable.
Ahora bien, también se encuentra el documento CN 201055376 que divulga un tonómetro digital portátil compuesto de una cabeza de detección, un sensor, partes de conexión, un amplificador operacional, un chip simple, una pantalla LCD, etc., donde la cabeza de detección se conecta con un resorte que se conecta con una varilla de empuje, donde el extremo inferior de la varilla es contactada con la película frontal de un empaque, un anillo de sujeción se conecta con el empaque, donde el extremo inferior del mismo se conecta con el sensor por medio de un anillo de sellado.
Sin embargo, el dispositivo descrito en este documento presenta la desventaja que la medición se muestra en una pantalla y requiere de un funcionamiento complejo, hecho que puede ser indeseable para el profesional médico, ya que los costos de operación pueden ser mayores al tiempo que se requiere de calibración constante y vuelve al dispositivo de difícil manipulación, manejo y mantenimiento. However, there is also document CN 201055376 that discloses a portable digital tonometer composed of a detection head, a sensor, connection parts, an operational amplifier, a simple chip, an LCD screen, etc., where the detection head it is connected with a spring that is connected with a push rod, where the lower end of the rod is contacted with the front film of a gasket, a clamping ring is connected with the gasket, where the lower end of the same is connected with the sensor by means of a sealing ring. However, the device described in this document has the disadvantage that the measurement is shown on a screen and requires complex operation, a fact that may be undesirable for the medical professional, since the operating costs may be greater at the time it is It requires constant calibration and returns to the device difficult to handle, handle and maintain.
De otra parte, se tiene el documento US 2010030056, el cual enseña un tonómetro portátil sin contacto para medir la presión intraocular (PIO) del ojo, donde dicho dispositivo está diseñado para ser operado por el sujeto y se aloja en una cubierta portátil la cual contiene una fuente de aire comprimido, detectores de alineación del ojo, sistema detecto de aplanamiento de la córnea, un sensor de presión y un sistema óptico. Así, el tonómetro además cuenta con un sistema de anuncio de audio que guía al sujeto en la operación del dispositivo y lo prepara para el procedimiento, donde dicho procedimiento se basa en una corriente de aire que se sopla directamente al ojo del paciente. On the other hand, there is document US 2010030056, which teaches a contactless portable tonometer to measure the intraocular pressure (IOP) of the eye, where said device is designed to be operated by the subject and is housed in a portable cover which It contains a source of compressed air, eye alignment detectors, corneal flattening system, a pressure sensor and an optical system. Thus, the tonometer also has an audio announcement system that guides the subject in the operation of the device and prepares it for the procedure, where said procedure is based on a stream of air that is blown directly into the patient's eye.
No obstante, con dicho dispositivo se presenta el problema que se requiere de accesorios o elementos externos, específicamente, una fuente de aire comprimido para soplar el ojo del paciente, donde dicho procedimiento es extremadamente incómodo, hecho que se traduce en un rechazo por parte de dicho paciente para realizar la medición de la PIO y se pueden presentar
problemas de glaucoma por falta de seguimiento por parte del médico, ya que el paciente se reúsa a volver a someterse al procedimiento incómodo de medición de la PIO. Finalmente, otra divulgación relacionada con este tipo de dispositivos se encuentra en el documento KR 101093217, el cual enseña un dispositivo portátil la medición de presión intraocular que ayuda a reconocer de forma rápida el cambio de dicha presión, donde el dispositivo cuenta con un actuador de presión de aire que genera presión de aire que se rocía en la córnea del paciente. Luego, un sensor de medición de presión de aire se instala en la parte central del dispositivo y mide la intensidad de presión de aire esparcido y la intensidad de la presión de aire que se refleja desde la córnea. Luego, un controlador conectado al sensor analiza la información y la visualiza. Sin embargo, al igual que con el documento previamente mencionado, el principio de funcionamiento se basa en un sistema de inyección de aire en el ojo, lo cual es un proceso incómodo y evita que el paciente se pueda realizar múltiples mediciones para hacer seguimiento y detectar una enfermedad ocular. De acuerdo con lo anterior, se puede ver claramente que en la actualidad existe un problema relacionado con la detección a tiempo de glaucoma y la posible pérdida de la visión debido a esta enfermedad, donde más personas sufren de
una presión intraocular alta que eventualmente afecta la visión y la reduce hasta el punto de perderla. Sin embargo, el procedimiento de la medición de dicha presión intraocular (PIO) es tedioso y un poco molesto para el paciente, ya que requiere de la aplicación de gotas anestésicas, ya que la mayoría de estas mediciones requiere del contacto del dispositivo de medición con el ojo directamente, hecho que es indeseable para el paciente, lo que lleva a que dicho paciente no acuda al doctor y se eviten estos procedimientos. Al mismo tiempo, los dispositivos actuales deben ser operados por personal calificado, con experiencia, y se deben calibrar constantemente y requieren de mantenimiento. However, with this device the problem that requires accessories or external elements, specifically, a source of compressed air to blow the patient's eye, where said procedure is extremely uncomfortable, which results in a rejection by the said patient to perform the IOP measurement and may occur Glaucoma problems due to lack of follow-up by the doctor, since the patient meets to undergo the uncomfortable IOP measurement procedure. Finally, another disclosure related to this type of device is found in document KR 101093217, which teaches a portable device measuring intraocular pressure that helps to quickly recognize the change in said pressure, where the device has an actuator of air pressure that generates air pressure that is sprayed on the patient's cornea. Then, an air pressure measurement sensor is installed in the central part of the device and measures the intensity of air pressure spread and the intensity of the air pressure that is reflected from the cornea. Then, a controller connected to the sensor analyzes the information and displays it. However, as with the previously mentioned document, the principle of operation is based on an air injection system in the eye, which is an uncomfortable process and prevents the patient from making multiple measurements to track and detect an eye disease According to the above, it can be clearly seen that there is currently a problem related to the timely detection of glaucoma and the possible loss of vision due to this disease, where more people suffer from a high intraocular pressure that eventually affects vision and reduces it to the point of losing it. However, the procedure for measuring said intraocular pressure (IOP) is tedious and a bit annoying for the patient, since it requires the application of anesthetic drops, since most of these measurements require the contact of the measuring device with the eye directly, a fact that is undesirable for the patient, which leads to said patient not going to the doctor and avoiding these procedures. At the same time, current devices must be operated by qualified, experienced personnel, and must be constantly calibrated and require maintenance.
A partir de la información mencionada previamente, también se puede establecer que en el estado del arte existe una necesidad por diseñar e implementar un dispositivo portátil para llevar a cabo el proceso de medición de la presión intraocular, el cual se base en un principio de medición por sensores sin ser un proceso invasivo, es decir, sin tocar el ojo del paciente, al mismo tiempo que sea un dispositivo completo, fácil de utilizar y que no requiera de mantenimiento o calibración, lo que se traduce en la menor cantidad de elementos posibles que permitan simplemente determinar si hay riesgo de glaucoma o no. De acuerdo con lo anterior, la presente invención resuelve el problema de una forma eficiente, ya que corresponde a un dispositivo para la medición de la presión intraocular (PIO) por medio de aplanamiento y el uso de un resorte y una
serie de sensores de efecto hall que permiten que se tenga un elemento de contacto con el paciente que permita tocar la parte externa del párpado sin hacer un procedimiento invasivo, y se obtenga una medición adecuada y se indique si dicha medición supera o no un umbral predeterminado para poder consultar al especialista, donde esta medición es sencilla de realizar y no requiere de personal calificado ni aparatos especiales para la misma. From the previously mentioned information, it can also be established that in the state of the art there is a need to design and implement a portable device to carry out the process of measuring intraocular pressure, which is based on a measurement principle by sensors without being an invasive process, that is, without touching the patient's eye, at the same time that it is a complete device, easy to use and that does not require maintenance or calibration, which translates into the least amount of possible elements that simply allow to determine if there is a risk of glaucoma or not. In accordance with the foregoing, the present invention solves the problem in an efficient manner, since it corresponds to a device for the measurement of intraocular pressure (IOP) by means of flattening and the use of a spring and a series of hall effect sensors that allow a patient contact element to be allowed to touch the external part of the eyelid without an invasive procedure, and an adequate measurement is obtained and whether or not this measurement exceeds a predetermined threshold In order to consult the specialist, where this measurement is simple to perform and does not require qualified personnel or special equipment for it.
RESUMEN DE LA INVENCIÓN La presente invención se dirige a un dispositivo portátil que permite realizar la medición de la presión intraocular mediante un proceso no invasivo, fácil y rápido, el cual se basa en el principio de efecto Hall para realizar dicha medición y dependiendo de un valor umbral predeterminado, informa al usuario si se ha superado un valor de presión intraocular específico y así se puedan tomar las respectivas medidas para evitar glaucoma en los pacientes. SUMMARY OF THE INVENTION The present invention is directed to a portable device that allows the measurement of intraocular pressure by a non-invasive, easy and fast process, which is based on the Hall effect principle for performing said measurement and depending on a predetermined threshold value, informs the user if a specific intraocular pressure value has been exceeded so that the respective measures can be taken to avoid glaucoma in patients.
Así las cosas, las características más importantes y relevantes de la presente invención que la hacen diferente de los dispositivos similares existentes en el estado del arte, corresponden en primer lugar al uso del principio de aplanamiento por medio de resortes y una serie de sensores que de acuerdo con la resistencia recibida cuando se hace la medición, determinan la presión
infraocular y permiten indicar si se ha superado un umbral predeterminado, al tiempo que es sencillo de operar y no requiere mantenimiento ni calibración. Thus, the most important and relevant features of the present invention that make it different from similar devices existing in the state of the art, correspond firstly to the use of the flattening principle by means of springs and a series of sensors that according to the resistance received when the measurement is made, they determine the pressure infraocular and allow to indicate if a predetermined threshold has been exceeded, while it is simple to operate and does not require maintenance or calibration.
BREVE DESCRIPCIÓN DE LAS FIGURAS BRIEF DESCRIPTION OF THE FIGURES
La presente invención se puede entender de una forma más adecuada a partir de las siguientes figuras que muestran todos sus partes y componentes, así como las características novedosas que lo difieren del estado del arte, en donde las figuras ilustran la invención en una modalidad preferida pero no pretenden limitar el alcance de las mismas, el cual está dado únicamente por las reivindicaciones adjuntas. Así, en las figuras adjuntas a la presente descripción se tiene que: The present invention can be understood in a more suitable way from the following figures showing all its parts and components, as well as the novel features that differ from the state of the art, where the figures illustrate the invention in a preferred embodiment but they are not intended to limit their scope, which is given only by the appended claims. Thus, in the figures attached to this description it is necessary to:
La figura 1 muestra un diagrama del dispositivo de la presente invención con sus respectivos componentes. Figure 1 shows a diagram of the device of the present invention with its respective components.
DESCRIPCIÓN DETALLADA DE LA INVENCIÓN DETAILED DESCRIPTION OF THE INVENTION
La presente invención se dirige a un dispositivo para la medición de la presión infraocular, el cual se basa en el principio de aplanamiento y no es invasivo ya que la medición se toma sin contacto directo con el ojo sino que se realiza sobre el párpado, donde el dispositivo es completamente portátil y sellado y no requiere
de ningún tipo de mantenimiento o calibración. El dispositivo de la invención comprende los siguientes componentes: The present invention is directed to a device for the measurement of infraocular pressure, which is based on the principle of flattening and is not invasive since the measurement is taken without direct contact with the eye but is performed on the eyelid, where The device is completely portable and sealed and does not require of any type of maintenance or calibration. The device of the invention comprises the following components:
• Un vástago de contacto (1 ) con el paciente el cual cuenta con una serie de imanes, preferiblemente de neodimium • A contact rod (1) with the patient which has a series of magnets, preferably neodimium
• Un resorte metálico (2) de bajo coeficiente de elasticidad. • A metal spring (2) of low elasticity coefficient.
• Un sensor de deformación (3) para la determinación del aplanamiento. • A deformation sensor (3) for the determination of flattening.
• Un circuito de desplazamiento (4) que cuenta con una serie de sensores de efecto hall. • A displacement circuit (4) that has a series of hall effect sensors.
· Una carcasa metálica (5). · A metal housing (5).
• Una tarjeta electrónica (6) para el montaje de sensores y un microprocesador. • An electronic card (6) for mounting sensors and a microprocessor.
• Un mecanismo luminoso (7) que corresponde a un bombillo LED que indica el estado de la presión intraocular, es decir, si se ha superado un umbral predeterminado • A light mechanism (7) corresponding to an LED bulb that indicates the status of the intraocular pressure, that is, if a predetermined threshold has been exceeded
• Una batería comercial recargable (9) • A rechargeable commercial battery (9)
• Una serie de cables internos (8) para la conexión entre la batería (9) y las tarjetas electrónicas (6); y • A series of internal cables (8) for the connection between the battery (9) and the electronic cards (6); Y
• Un conector (10) de entrada de adaptador de cargador para la recarga de la batería.
Así las cosas, el dispositivo de la presente invención es sencillo, fácil de utilizar y fácil de fabricar, ya que basa su funcionamiento en el aplanamiento de una serie de sensores y en lugar de indicar la medición exacta de la presión intraocular en un momento determinado y contar con un margen de error bastante elevado, el dispositivo de la invención utiliza simplemente una señal luminosa que indica si un valor umbral predeterminado se ha superado y así se determina si la presión corresponde a un ojo que sufre o está sufriendo de glaucoma.
• A charger adapter input connector (10) for recharging the battery. Thus, the device of the present invention is simple, easy to use and easy to manufacture, since it bases its operation on the flattening of a series of sensors and instead of indicating the exact measurement of intraocular pressure at a given time. and having a fairly high margin of error, the device of the invention simply uses a light signal that indicates whether a predetermined threshold value has been exceeded and thus determines whether the pressure corresponds to an eye suffering from or suffering from glaucoma.
Claims
1 . Un dispositivo para la medición de la presión intraocular (PIO), caracterizado porque comprende: one . A device for measuring intraocular pressure (IOP), characterized in that it comprises:
· un vástago de contacto (1 ); · A contact rod (1);
• un resorte metálico (2); • a metal spring (2);
• un sensor de deformación (3); • a deformation sensor (3);
• un circuito de desplazamiento (4) que cuenta con sensores de efecto hall; • a displacement circuit (4) that has hall effect sensors;
• una carcasa externa (5); • an external housing (5);
· una tarjeta electrónica (6) de montaje de sensores y microprocesador; · An electronic card (6) for sensor and microprocessor mounting;
• un mecanismo luminoso (7); y • a light mechanism (7); Y
• una batería (9). • a battery (9).
2. El dispositivo de acuerdo con la reivindicación 1 , caracterizado porque el vástago de contacto (1 ) cuenta con imanes. 2. The device according to claim 1, characterized in that the contact rod (1) has magnets.
3. El dispositivo de acuerdo con la reivindicación 2, caracterizado porque los imanes son de neodimium. 3. The device according to claim 2, characterized in that the magnets are neodymium.
4. El dispositivo de acuerdo con la reivindicación 1 , caracterizado porque el resorte metálico (2) es de bajo coeficiente de elasticidad.
4. The device according to claim 1, characterized in that the metal spring (2) is of low elasticity coefficient.
5. El dispositivo de acuerdo con la reivindicación 1 , caracterizado porque la carcasa externa (5) es fabricada en un material metálico. 5. The device according to claim 1, characterized in that the outer casing (5) is made of a metallic material.
6. El dispositivo de acuerdo con la reivindicación 1 , caracterizado porque el mecanismo luminoso (7) es un bombillo LED. 6. The device according to claim 1, characterized in that the light mechanism (7) is an LED bulb.
7. El dispositivo de acuerdo con la reivindicación 1 , caracterizado porque la batería (9) es recargable. 7. The device according to claim 1, characterized in that the battery (9) is rechargeable.
8. El dispositivo de acuerdo con la reivindicación 8, caracterizado porque además comprende un conector (10) de entrada de adaptador de recarga de batería (9).
The device according to claim 8, characterized in that it further comprises a connector (10) of the battery recharge adapter input (9).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CO16-118031 | 2016-05-06 | ||
| CO16118031 | 2016-05-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2017191612A2 true WO2017191612A2 (en) | 2017-11-09 |
| WO2017191612A3 WO2017191612A3 (en) | 2018-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2017/052635 WO2017191612A2 (en) | 2016-05-06 | 2017-05-05 | Portable device for measuring intraocular pressure using hall effect sensors |
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| Country | Link |
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| WO (1) | WO2017191612A2 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5165409A (en) * | 1988-08-23 | 1992-11-24 | Coan William M | Tonometry apparatus |
| JPH0638930A (en) * | 1992-07-27 | 1994-02-15 | Kowa Co | Load-detection type tonometer |
| US6706001B2 (en) * | 2001-05-11 | 2004-03-16 | Bernard B. Fresco | Dual tonometer pressure measurement device |
| EP2057940B1 (en) * | 2007-11-08 | 2011-12-07 | Haag-Streit Ag | Applanation tonometer |
| US9795295B2 (en) * | 2013-09-30 | 2017-10-24 | Michael L. Cohen | Tonometer for checking the intra-ocular pressure through the eyelid and method using same |
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2017
- 2017-05-05 WO PCT/IB2017/052635 patent/WO2017191612A2/en active Application Filing
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| Publication number | Publication date |
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| WO2017191612A3 (en) | 2018-01-11 |
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