CA3086460C - Reducing errors of optical measurements of internal pressure of a body performed with an optical member in contact with the body - Google Patents

Reducing errors of optical measurements of internal pressure of a body performed with an optical member in contact with the body Download PDF

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Publication number
CA3086460C
CA3086460C CA3086460A CA3086460A CA3086460C CA 3086460 C CA3086460 C CA 3086460C CA 3086460 A CA3086460 A CA 3086460A CA 3086460 A CA3086460 A CA 3086460A CA 3086460 C CA3086460 C CA 3086460C
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CA
Canada
Prior art keywords
shell
front surface
cornea
optically
error
Prior art date
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Active
Application number
CA3086460A
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English (en)
French (fr)
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CA3086460A1 (en
Inventor
Sean J. Mccafferty
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.)
Cats Tonometer LLC
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Cats Tonometer LLC
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
Priority claimed from US16/000,573 external-priority patent/US11026576B2/en
Application filed by Cats Tonometer LLC filed Critical Cats Tonometer LLC
Publication of CA3086460A1 publication Critical patent/CA3086460A1/en
Application granted granted Critical
Publication of CA3086460C publication Critical patent/CA3086460C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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

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  • 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)
CA3086460A 2017-12-12 2018-12-11 Reducing errors of optical measurements of internal pressure of a body performed with an optical member in contact with the body Active CA3086460C (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US201762597714P 2017-12-12 2017-12-12
US62/597,714 2017-12-12
US201862658273P 2018-04-16 2018-04-16
US62/658,273 2018-04-16
US16/000,573 2018-06-05
US16/000,573 US11026576B2 (en) 2015-04-15 2018-06-05 Reducing errors of tonometric measurements by using a tonometer tip with a curved cornea-contacting surface
PCT/US2018/064878 WO2019118410A1 (en) 2017-12-12 2018-12-11 Reducing errors of optical measurements of internal pressure of a body performed with an optical member in contact with the body

Publications (2)

Publication Number Publication Date
CA3086460A1 CA3086460A1 (en) 2019-06-20
CA3086460C true CA3086460C (en) 2022-08-16

Family

ID=65237126

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3086460A Active CA3086460C (en) 2017-12-12 2018-12-11 Reducing errors of optical measurements of internal pressure of a body performed with an optical member in contact with the body

Country Status (6)

Country Link
EP (1) EP3723582B1 (https=)
JP (2) JP6912675B2 (https=)
CN (1) CN111655120A (https=)
AU (2) AU2018385598B2 (https=)
CA (1) CA3086460C (https=)
WO (1) WO2019118410A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111380587B (zh) * 2020-03-05 2022-09-23 广州能源检测研究院 一种对采用蒙特卡罗法测量立式罐容量的结果误差补偿方法
CN113189873B (zh) * 2021-04-21 2022-08-02 中国科学院光电技术研究所 一种基于对称误差拟合的旋转双棱镜快速高精度解算方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1360603A (en) * 1970-07-01 1974-07-17 Clarke Ltd Clement Applanation tonometers
CH673760A5 (https=) * 1988-02-09 1990-04-12 Yves Dr Med Robert
US5031622A (en) * 1990-03-28 1991-07-16 Lahaye Laboratories, Inc. Disposable anticontamination tonometer tip cover or cap
US5830139A (en) * 1996-09-04 1998-11-03 Abreu; Marcio M. Tonometer system for measuring intraocular pressure by applanation and/or indentation
US6736778B2 (en) * 1997-12-22 2004-05-18 Francis Y. Falck, Jr. Replaceable prism for applanation tonometer
US6893398B2 (en) * 2001-04-19 2005-05-17 Odc Ophthalmic Development Company Ag Device for measuring intraocular pressure, in particular a tonometer
US6623429B2 (en) * 2001-11-06 2003-09-23 Reichert, Inc. Hand-held non-contact tonometer
US20050041200A1 (en) * 2001-11-07 2005-02-24 Darren Rich Gonioscopy assembly
US6817981B2 (en) * 2002-07-01 2004-11-16 Reichert, Inc. Method for eliminating error in tonometric measurements
IL166962A (en) * 2005-02-17 2012-06-28 Ait Advanced Medical Technologies Ltd Device and method for intra-ocular pressure measurment
US9078612B2 (en) * 2011-12-02 2015-07-14 Third Eye Diagnostics, Inc. Devices and methods for noninvasive measurement of intracranial pressure
US10463251B2 (en) * 2012-09-10 2019-11-05 Cats Tonometer, Llc Ophthalmological instrument
WO2015150925A1 (en) * 2014-03-10 2015-10-08 Amo Groningen B.V. Intraocular lens that improves overall vision where there is a local loss of retinal function
US9538917B2 (en) * 2014-08-04 2017-01-10 Lighttouch, Llc Applanation tonometer having cornea alignment means
CN107529984A (zh) * 2015-04-15 2018-01-02 卡茨血压计有限责任公司 光学仪器
TW201703722A (zh) * 2015-07-21 2017-02-01 明達醫學科技股份有限公司 量測裝置及其運作方法
ITUA20164269A1 (it) * 2016-06-10 2017-12-10 Iromed Group S R L Testa di applanazione per un tonometro ad applanazione di goldmann e relativo tonometro, metodo per la misura della pressione intraoculare e metodo per la misura del modulo di elasticità di una cornea

Also Published As

Publication number Publication date
EP3723582A1 (en) 2020-10-21
AU2018385598A1 (en) 2020-06-25
CA3086460A1 (en) 2019-06-20
JP2021505357A (ja) 2021-02-18
AU2021200334A1 (en) 2021-03-18
JP2021164720A (ja) 2021-10-14
WO2019118410A1 (en) 2019-06-20
AU2018385598B2 (en) 2021-01-28
EP3723582B1 (en) 2021-10-06
JP6912675B2 (ja) 2021-08-04
JP7003317B2 (ja) 2022-01-20
AU2021200334B2 (en) 2021-11-25
CN111655120A (zh) 2020-09-11

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