ES2253025B1 - PORTABLE DEVICE FOR MEASURING INTRAOCULAR PRESSURE (TONOMETER). - Google Patents
PORTABLE DEVICE FOR MEASURING INTRAOCULAR PRESSURE (TONOMETER). Download PDFInfo
- Publication number
- ES2253025B1 ES2253025B1 ES200301243A ES200301243A ES2253025B1 ES 2253025 B1 ES2253025 B1 ES 2253025B1 ES 200301243 A ES200301243 A ES 200301243A ES 200301243 A ES200301243 A ES 200301243A ES 2253025 B1 ES2253025 B1 ES 2253025B1
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- Spain
- Prior art keywords
- pressure
- tube
- eye
- portable device
- intraocular pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 230000004410 intraocular pressure Effects 0.000 title abstract description 6
- 239000012530 fluid Substances 0.000 claims abstract description 10
- 229920001971 elastomer Polymers 0.000 claims abstract description 5
- 239000000806 elastomer Substances 0.000 claims abstract description 5
- 230000003068 static effect Effects 0.000 claims description 5
- 239000013536 elastomeric material Substances 0.000 claims description 3
- 230000000704 physical effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 5
- 230000003750 conditioning effect Effects 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 3
- 208000010412 Glaucoma Diseases 0.000 description 5
- 230000004438 eyesight Effects 0.000 description 3
- 201000004569 Blindness Diseases 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007850 degeneration Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 210000003733 optic disk Anatomy 0.000 description 2
- 230000005043 peripheral vision Effects 0.000 description 2
- 208000024891 symptom Diseases 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 208000018769 loss of vision Diseases 0.000 description 1
- 231100000864 loss of vision Toxicity 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000004126 nerve fiber Anatomy 0.000 description 1
- 210000001328 optic nerve Anatomy 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 210000001525 retina Anatomy 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 230000004393 visual impairment Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Eye Examination Apparatus (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Abstract
Dispositivo portátil de medición de la presión intraocular (tonómetro). Basado en la determinación de la presión de equilibrado entre la presión intraocular y la del dispositivo sensor que se hace contactar con la superficie exterior del ojo. La presente realización preferente se compone de un tubo (1), que contiene el fluido incompresible a presión, mediante la válvula rápida de carga de fluido (4), que está conectada al tubo (1) mediante el conector (6). En su extremo lleva conectado el dispositivo sensor de material elastómero (2) con la forma expuesta u otra similar que está unido y fijado al tubo mediante un anillo de aseguramiento (3). El desplazamiento del conjunto está guiado por un dispositivo de deslizamiento (7). El tubo, a través del conector (5), está conectado a un sistema integrado de transmisión, acondicionamiento y procesamiento de la señal de presión (8), que proporciona el valor de la presión intraocular.Portable device for measuring intraocular pressure (tonometer). Based on the determination of the equilibrium pressure between the intraocular pressure and that of the sensing device that contacts the outer surface of the eye. The present preferred embodiment consists of a tube (1), which contains the incompressible fluid under pressure, by means of the rapid fluid loading valve (4), which is connected to the tube (1) by means of the connector (6). At its end the elastomer material sensor device (2) is connected with the exposed or similar shape that is attached and fixed to the tube by means of a securing ring (3). The movement of the assembly is guided by a sliding device (7). The tube, through the connector (5), is connected to an integrated system for transmitting, conditioning and processing the pressure signal (8), which provides the value of the intraocular pressure.
Description
Dispositivo portátil de medición de la presión intraocular (tonómetro).Portable pressure measuring device intraocular (tonometer).
La presente invención se refiere a un dispositivo portátil cuya función es la de poder medir la presión ocular sin necesidad de tener que recurrir a los habituales instrumentos estáticos usados en oftalmología. La principal ventaja del citado dispositivo consiste en su portabilidad, para lo cual se ha tenido que diseñar un sistema de adquisición de señal diferente al utilizado en los dispositivos estáticos actuales.The present invention relates to a portable device whose function is to be able to measure the pressure eyepiece without having to resort to the usual static instruments used in ophthalmology. The main advantage of the aforementioned device consists of its portability, for which it has had to design a different signal acquisition system to the one used in current static devices.
En el campo de la medicina oftalmológica, el glaucoma comprende un complejo de entidades patológicas que tienen en común un aumento de la presión intraocular capaz de producir una degeneración de la papila óptica y defectos en el campo visual. Las fibras nerviosas del nervio óptico conectan la retina con el cerebro, por lo que su buen estado es esencial para una visión correcta. La degeneración de la papila óptica es gradual, sin síntomas, hasta que aparece el estado severo de la enfermedad, en el que se va perdiendo la visión periférica. En un estado avanzado el glaucoma causa una pérdida de visión irreversible.In the field of ophthalmological medicine, the glaucoma comprises a complex of pathological entities that have in common an increase in intraocular pressure capable of producing a degeneration of the optic papilla and defects in the visual field. The optic nerve nerve fibers connect the retina with the brain, so your good condition is essential for a vision correct. The degeneration of the optic papilla is gradual, without symptoms, until the severe state of the disease appears, in the one who loses peripheral vision. In an advanced state Glaucoma causes irreversible loss of vision.
La forma mas común de glaucoma es la de ángulo abierto. Lo sufre el 2-3% de la población mundial, de los cuales la mitad no lo sabe, ya que la enfermedad no da síntomas iniciales.The most common form of glaucoma is angle open. It is suffered by 2-3% of the world's population, of which half do not know, since the disease does not give initial symptoms
Si el paciente con glaucoma no recibe tratamiento, alcanza una pérdida de visión periférica severa y finalmente queda ciego. Un tratamiento médico o quirúrgico realizado cuando el paciente ha perdido parte de su visión periférica solo salva la visión remanente que tenía antes del tratamiento.If the glaucoma patient does not receive treatment, achieves severe peripheral vision loss and He is finally blind. A medical or surgical treatment performed when the patient has lost part of their vision peripheral only saves the remaining vision I had before treatment.
Por lo tanto, es muy importante descubrir los signos del glaucoma en su etapa inicial. Entre los sistemas de detección mas usados figura el tonómetro que mide la presión intraocular, cuyo valor normal es de 16 a 20 mm Hg.Therefore, it is very important to discover the signs of glaucoma in its initial stage. Among the systems of most used detection is the tonometer that measures the pressure intraocular, whose normal value is 16 to 20 mm Hg.
Los dispositivos para la medida de la presión ocular actuales son equipos de gran tamaño y no portátiles. Para determinar la presión ocular de un paciente es necesario que este se desplace hasta esta instalación. Muchas veces existen dificultades técnicas para ello, ya sea por dificultad de movimientos del paciente, lejanía de una instalación u otros factores que hacen que un instrumento de estas características que sea portátil ofrezca innumerables ventajasThe devices for pressure measurement Current eyepieces are large and non-portable equipment. For to determine the ocular pressure of a patient it is necessary that this scroll to this installation. Many times there are difficulties techniques for this, either due to difficulty of movement of the patient, remoteness of a facility or other factors that cause an instrument of these characteristics that is portable offers innumerable advantages
El dispositivo portátil de medición de la presión intraocular (tonómetro) es de nuevo diseño, y sus características son el objeto de la presente invención.The portable measuring device of the Intraocular pressure (tonometer) is newly designed, and its Features are the object of the present invention.
El instrumento se basa en la determinación de la presión de equilibrado entre la presión ocular y la del dispositivo sensor de material elastómero del instrumento que se hace contactar con la superficie exterior del ojo. Existe una relación proporcional entre el recorrido necesario para equilibrar la presión y la presión real del ojo.The instrument is based on the determination of the balancing pressure between the eye pressure and that of the device elastomer material sensor of the contacting instrument with the outer surface of the eye. There is a relationship proportional between the path necessary to balance the pressure and the real pressure of the eye.
En una realización opcional, el dispositivo consta de un tubo conteniendo un fluido incompresible y que finaliza en un dispositivo sensor de material elastómero, de propiedades físicas adecuadas para garantizar la resolución y elasticidad necesarias y del material adecuado para que contacte con el ojo sin perjuicio de su función básica. Este dispositivo es el que contacta con el ojo hasta una presión determinada, recorriendo un espacio medible y determinado.In an optional embodiment, the device it consists of a tube containing an incompressible fluid and that ends in a sensor device made of elastomeric material, of adequate physical properties to ensure resolution and necessary elasticity and adequate material to contact the eye without prejudice to its basic function. This device is the that contacts the eye to a certain pressure, traveling A measurable and determined space.
Para una mejor comprensión de cuanto queda descrito en la presente memoria, se acompañan unos dibujos en los que, tan solo a título de ejemplo, se representa una realización preferente. Dichos dibujos presentan una perspectiva frontal del dispositivo (figura 1-Vista frontal) y una vista lateral (figura 2-Vista lateral corte A-B de la figura 1), ambas en alzado. Las partes constituyentes de las figuras 1 y 2 son:For a better understanding of how much is left described herein, some drawings are attached in the that, just as an example, an embodiment is represented preferential. These drawings present a frontal perspective of the device (figure 1-Front view) and a view side (figure 2-Side view cut A-B in figure 1), both in elevation. The parts Constituents of Figures 1 and 2 are:
- 1-one-
- Tubo contenedor de fluido incompresible y transmisor de presión.Tube incompressible fluid container and pressure transmitter.
- 2-2-
- Dispositivo sensor elastómero o similar.Elastomer sensor device or Similary.
- 3-3-
- Anillo de aseguramiento del dispositivo Nº 2.Device securing ring No. 2
- 4-4-
- Válvula o dispositivo de carga de presión del fluido incompresible.Load valve or device incompressible fluid pressure.
- 5-5-
- Conector al tubo contenedor Nº 1 del conducto del Transmisor,Connector to container tube No. 1 of Transmitter conduit,
- Acondicionador y Procesador de Señales Nº 8.Conditioner and Signal Processor Nº 8.
- 6-6-
- Conector al tubo contenedor Nº 1 de la válvula de carga Nº 4.Connector to container tube No. 1 of the loading valve No. 4.
- 7-7-
- Dispositivo de deslizamiento, o acercamiento servomotriz.Sliding device, or servomotor approach.
- 8-8-
- Sistema integrado de Transmisión, Acondicionamiento yIntegrated Transmission System, Conditioning and
- Procesamiento de Señales de presión.Processing of Pressure signals
La presente realización preferente esta compuesta de un tubo (1), que contiene el fluido incompresible, y por lo tanto transmite la presión, con perdidas inapreciables proporcionadas mediante la válvula rápida de carga del fluido (4), que esta conectada al tubo (1) mediante el conector (6). En su extremo lleva conectado el dispositivo sensor realizado de material elastómero (2), con la forma expuesta en la figura u otra similar que cumpla las funciones descritas anteriormente. Este dispositivo sensor está unido y fijado al tubo mediante un anillo de aseguramiento del dispositivo (3). Ya que el desplazamiento de todo el conjunto es una medida crítica y por lo tanto tiene que ser fiable, todo él está guiado por un dispositivo de deslizamiento (7), para los movimientos de alejamiento y acercamiento del conjunto tubo y sensor. Finalmente, a través del conector (5) el tubo está conectado a un sistema integrado de transmisión, acondicionamiento y procesamiento de la señal de presión (8) que se encarga de recoger las señales de los sensores y proporcionar el valor final de la presión ocular.The present preferred embodiment is composed of a tube (1), which contains the incompressible fluid, and therefore transmits the pressure, with negligible losses provided by the quick fluid charge valve (4), which is connected to the tube (1) through the connector (6). In its end is connected to the sensor device made of material elastomer (2), as shown in the figure or similar that fulfills the functions described above. This device sensor is attached and fixed to the tube by a ring device assurance (3). Since the displacement of everything the set is a critical measure and therefore has to be reliable, all of it is guided by a sliding device (7), for the movements of distance and approach of the set tube and sensor Finally, through the connector (5) the tube is connected to an integrated transmission, conditioning system and processing of the pressure signal (8) that is responsible for collect the signals from the sensors and provide the final value of eye pressure.
Serán independientes del objeto de la invención los materiales empleados en la fabricación de los componentes del dispositivo, especialmente el tipo de fluido incompresible empleado, el material elastómero del sensor y la forma de este y el sistema de adquisición, tratamiento y acondicionamiento de la señal ya que ninguno de estos afecta a la esencialidad de la presente invenciónThey will be independent of the object of the invention the materials used in the manufacture of the components of the device, especially the type of incompressible fluid used, the elastomeric material of the sensor and the shape of this and the signal acquisition, treatment and conditioning system since none of these affects the essentiality of the present invention
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200301243A ES2253025B1 (en) | 2003-05-15 | 2003-05-15 | PORTABLE DEVICE FOR MEASURING INTRAOCULAR PRESSURE (TONOMETER). |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200301243A ES2253025B1 (en) | 2003-05-15 | 2003-05-15 | PORTABLE DEVICE FOR MEASURING INTRAOCULAR PRESSURE (TONOMETER). |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2253025A1 ES2253025A1 (en) | 2006-05-16 |
| ES2253025B1 true ES2253025B1 (en) | 2007-07-16 |
Family
ID=36441029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES200301243A Expired - Lifetime ES2253025B1 (en) | 2003-05-15 | 2003-05-15 | PORTABLE DEVICE FOR MEASURING INTRAOCULAR PRESSURE (TONOMETER). |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2253025B1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993003665A1 (en) * | 1991-08-27 | 1993-03-04 | Jermik Systems, Ltd. | Portable intraocular pressure measurement method and apparatus |
| US5671737A (en) * | 1995-12-08 | 1997-09-30 | Marine Biological Laboratory | Self-operable tonometer for measuring intraocular pressure of a patient's eye |
| US5735275A (en) * | 1996-06-13 | 1998-04-07 | Ballou; Jon | Tonometer utilizing hydraulic pressure |
| ES2161639B1 (en) * | 2000-01-11 | 2002-10-01 | Diego Luis Fernandez-Vega | EPIPALPEBRAL OR CORNEAL EYE TONOMETER |
| US6776756B2 (en) * | 2001-05-16 | 2004-08-17 | Marco Ophthalmic, Inc. | Applanation tonometer |
-
2003
- 2003-05-15 ES ES200301243A patent/ES2253025B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ES2253025A1 (en) | 2006-05-16 |
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| Date | Code | Title | Description |
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