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ES2186203T3 - Tonometros de aplanacion. - Google Patents

Tonometros de aplanacion.

Info

Publication number
ES2186203T3
ES2186203T3 ES98939766T ES98939766T ES2186203T3 ES 2186203 T3 ES2186203 T3 ES 2186203T3 ES 98939766 T ES98939766 T ES 98939766T ES 98939766 T ES98939766 T ES 98939766T ES 2186203 T3 ES2186203 T3 ES 2186203T3
Authority
ES
Spain
Prior art keywords
force
applanation
applanating
eye
contact face
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
Application number
ES98939766T
Other languages
English (en)
Inventor
Paul S Yang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Haag Streit AG
Original Assignee
Haag Streit AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Haag Streit AG filed Critical Haag Streit AG
Application granted granted Critical
Publication of ES2186203T3 publication Critical patent/ES2186203T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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)
  • General Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Eye Examination Apparatus (AREA)
  • Amplifiers (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Measuring Volume Flow (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Light Receiving Elements (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

La presente invención se refiere a un tonómetro con aplanamiento que comprende medios respectivos (18, 26) destinados a transmitir un haz de medición a través de un elemento de aplanamiento (44) colocado en el ojo de un sujeto y para detectar el aclaración reflejado por éste, dicho aclaración constituye una medición del grado de aplanamiento obtenido por una superficie de contacto (46) de dicho elemento. Los datos relativos a la fuerza de aplanamiento y al aclaración reflejado son recogidos mientras que la fuerza de aplanamiento aumenta progresivamente hasta que la superficie de contacto del elemento de aplanamiento se aplique completamente sobre el ojo. Se deriva la fuerza de aplanamiento que corresponde a una zona de contacto predeterminada más pequeña por interpolación de los datos recogidos, lo que permite obtener una lectura más precisa. Unos medios pueden permitir compensar las fuerzas dinámicas que intervienen en el momento del aplanamiento de la zona predeterminada más pequeña. Un dispositivo que permite controlar la alineación del tonómetro respecto del ojo recurre a una fuente (24) de luz de control desde la cual el aclaración se dirige a lo largo de trayectorias conjugadas para formar sobre la retina un motivo luminoso que depende de la alineación del tonómetro con el ojo.
ES98939766T 1997-08-22 1998-08-20 Tonometros de aplanacion. Expired - Lifetime ES2186203T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9717894.1A GB9717894D0 (en) 1997-08-22 1997-08-22 Applanating tonmeters

Publications (1)

Publication Number Publication Date
ES2186203T3 true ES2186203T3 (es) 2003-05-01

Family

ID=10817935

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98939766T Expired - Lifetime ES2186203T3 (es) 1997-08-22 1998-08-20 Tonometros de aplanacion.

Country Status (11)

Country Link
US (1) US6413214B1 (es)
EP (1) EP1003412B1 (es)
JP (1) JP2001513385A (es)
AT (1) ATE227956T1 (es)
AU (1) AU8816998A (es)
DE (1) DE69809559T2 (es)
DK (1) DK1003412T3 (es)
ES (1) ES2186203T3 (es)
GB (1) GB9717894D0 (es)
PT (1) PT1003412E (es)
WO (1) WO1999009882A1 (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6524243B1 (en) * 2000-10-04 2003-02-25 Jordan Technology Inc. Tonometer incorporating an electrical measurement device
US6923765B2 (en) * 2001-11-21 2005-08-02 A. Mateen Ahmed Tonometer and method of use
DE10209646A1 (de) * 2002-03-05 2003-09-18 Cis Inst Fuer Mikrosensorik Gg Verfahren und Anordnung zur Bestimmung des Augeninnendrucks
US7473231B2 (en) * 2002-06-25 2009-01-06 Francis Y. Falck Method and apparatus for examining an eye
US7153267B2 (en) * 2003-01-30 2006-12-26 Francis Y Falck, Jr. Ophthalmologic applanation prism replacement system
US6981946B2 (en) * 2003-04-17 2006-01-03 J.D. Mueller Company, Llc Load sensing applanation tonometer
US20060217611A1 (en) * 2003-06-03 2006-09-28 Autotonometer Corporation Ophthalmologic Applanation Prism Replacement System for Eye Examining Instrument
US9005125B1 (en) * 2010-02-04 2015-04-14 A. Mateen Ahmed Tonometer
US9232892B2 (en) 2010-11-03 2016-01-12 Lighttouch, Llc Applanation tonometer and method for measuring the intraocular pressure of the eye
US9078612B2 (en) 2011-12-02 2015-07-14 Third Eye Diagnostics, Inc. Devices and methods for noninvasive measurement of intracranial pressure
US9585578B2 (en) 2011-12-02 2017-03-07 Third Eye Diagnostics, Inc. Devices and methods for noninvasive measurement of intracranial pressure
CN102813501B (zh) * 2012-08-06 2014-04-02 淮南师范学院 动态眼压测量装置及控制探头与眼球共轴的方法
CN108780036B (zh) * 2018-04-23 2021-10-22 深圳达闼科技控股有限公司 一种光学检测设备及检测方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE862920C (de) 1944-03-16 1953-01-15 Lorenz C Ag Schaltungsanordnung zur Beeinflussung der Resonanzfrequenz eines Schwingungskreises
GB862920A (en) 1957-06-29 1961-03-15 Haag Streit A G Improvements in apparatus for measuring the intraocular or tonometric pressure of aneye
DE3421701A1 (de) 1983-06-10 1984-12-13 Jenoptik Jena Gmbh, Ddr 6900 Jena Applanationstonometer
JPH01256923A (ja) 1988-04-08 1989-10-13 Topcon Corp 非接触式眼圧計のアライメント装置
DE3931630A1 (de) 1989-09-22 1991-05-08 Datron Electronic Gmbh Verfahren und vorrichtung zur bestimmung des augeninnendrucks o. dgl.
US5070875A (en) 1990-11-19 1991-12-10 Falcken, Inc. Applanation tonometer using light reflection to determine applanation area size
JPH05253190A (ja) 1991-10-10 1993-10-05 Massie Res Lab Inc 非接触式トノメーター
US5355884A (en) * 1992-10-30 1994-10-18 Bennett Emeric S Applanation tonometer for measuring intraocular pressure
DE4444459C1 (de) * 1994-12-14 1996-02-29 Jenoptik Technologie Gmbh Anordnung zur automatischen Bestimmung der Andruckkraft bei Augendruckuntersuchungen

Also Published As

Publication number Publication date
DE69809559T2 (de) 2003-08-28
WO1999009882A1 (en) 1999-03-04
AU8816998A (en) 1999-03-16
JP2001513385A (ja) 2001-09-04
DK1003412T3 (da) 2002-12-16
DE69809559D1 (de) 2003-01-02
US6413214B1 (en) 2002-07-02
PT1003412E (pt) 2003-04-30
EP1003412B1 (en) 2002-11-20
GB9717894D0 (en) 1997-10-29
EP1003412A1 (en) 2000-05-31
ATE227956T1 (de) 2002-12-15

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