GB1306695A - Tonometers - Google Patents

Tonometers

Info

Publication number
GB1306695A
GB1306695A GB2596570A GB2596570A GB1306695A GB 1306695 A GB1306695 A GB 1306695A GB 2596570 A GB2596570 A GB 2596570A GB 2596570 A GB2596570 A GB 2596570A GB 1306695 A GB1306695 A GB 1306695A
Authority
GB
United Kingdom
Prior art keywords
voltage
ramp
circuit
peak
signal
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
Application number
GB2596570A
Other languages
English (en)
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.)
American Optical Corp
Original Assignee
American Optical Corp
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 American Optical Corp filed Critical American Optical Corp
Publication of GB1306695A publication Critical patent/GB1306695A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
    • A61B5/346—Analysis of electrocardiograms
    • A61B5/349—Detecting specific parameters of the electrocardiograph cycle
    • A61B5/352—Detecting R peaks, e.g. for synchronising diagnostic apparatus; Estimating R-R interval
    • 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
    • A61B3/165—Non-contacting tonometers

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Cardiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Physics & Mathematics (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Ophthalmology & Optometry (AREA)
  • Pathology (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Eye Examination Apparatus (AREA)
GB2596570A 1969-05-28 1970-05-28 Tonometers Expired GB1306695A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82850669A 1969-05-28 1969-05-28

Publications (1)

Publication Number Publication Date
GB1306695A true GB1306695A (en) 1973-02-14

Family

ID=25252007

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2596570A Expired GB1306695A (en) 1969-05-28 1970-05-28 Tonometers

Country Status (6)

Country Link
US (1) US3572100A (enExample)
JP (1) JPS4917476B1 (enExample)
CH (1) CH518088A (enExample)
DE (1) DE2024155C2 (enExample)
FR (1) FR2043737A1 (enExample)
GB (1) GB1306695A (enExample)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5834129B2 (ja) * 1975-10-29 1983-07-25 ミノルタ株式会社 ガンテイミヤクハケイ
HU172843B (hu) * 1975-11-17 1978-12-28 Medicor Muevek Oftal'mologicheskoe prisposoblenie dlja proverochnogo osmotra s cel'ju obnaruzhenija glaukomy
JPS5288442A (en) * 1976-01-20 1977-07-23 Kinji Hiraide Electric toothbrush
JPS5479864U (enExample) * 1977-11-14 1979-06-06
US4386611A (en) * 1980-06-02 1983-06-07 Warner Lambert Technologies, Inc. Tonometer with improved fluid discharged tube
DE3332724A1 (de) * 1983-09-10 1985-03-28 Jost Dr.med. 6200 Wiesbaden Elborg Messvorrichtung fuer den augeninnendruck
JPH0642871B2 (ja) * 1986-11-27 1994-06-08 株式会社トプコン 眼圧計
US5092334A (en) * 1987-06-30 1992-03-03 Tokyo Kogaku Kikai Kabushiki Kaisha Noncontact type tonometer
US5183044A (en) * 1987-06-30 1993-02-02 Kabushiki Kaisha Topcon Noncontact type tonometer
JP2642397B2 (ja) * 1988-04-21 1997-08-20 株式会社トプコン 非接触式眼圧計
US5810005A (en) * 1993-08-04 1998-09-22 Dublin, Jr.; Wilbur L. Apparatus and method for monitoring intraocular and blood pressure by non-contact contour measurement
US7101335B2 (en) * 2001-02-01 2006-09-05 Nidek Co., Ltd. Non-contact type tonometer
US7473231B2 (en) * 2002-06-25 2009-01-06 Francis Y. Falck Method and apparatus for examining an eye
US6817981B2 (en) 2002-07-01 2004-11-16 Reichert, Inc. Method for eliminating error in tonometric measurements
DE102006037767A1 (de) * 2006-08-11 2008-02-14 Volker Dockhorn Verfahren und Vorrichtung zum Messen eines physikalischen Parameters, insbesondere des Innendruckes des menschlichen Auges

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1078735B (de) * 1958-11-11 1960-03-31 Fritz Schwarzer G M B H Elektro-Tonometer fuer ophtalmologische Zwecke
US3585849A (en) * 1968-10-09 1971-06-22 American Optical Corp Method and apparatus for measuring intraocular pressure

Also Published As

Publication number Publication date
DE2024155C2 (de) 1984-05-30
US3572100A (en) 1971-03-23
DE2024155A1 (de) 1970-12-03
FR2043737A1 (enExample) 1971-02-19
CH518088A (de) 1972-01-31
JPS4917476B1 (enExample) 1974-05-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years