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GB2155628A - Optical probe to measure the depth of a cavity - Google Patents

Optical probe to measure the depth of a cavity

Info

Publication number
GB2155628A
GB2155628A GB08505501A GB8505501A GB2155628A GB 2155628 A GB2155628 A GB 2155628A GB 08505501 A GB08505501 A GB 08505501A GB 8505501 A GB8505501 A GB 8505501A GB 2155628 A GB2155628 A GB 2155628A
Authority
GB
United Kingdom
Prior art keywords
depth
optical fiber
measure
cavity
light
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.)
Withdrawn
Application number
GB08505501A
Other versions
GB8505501D0 (en
Inventor
Lewis Arnold Simon
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.)
LJS Practice Management Ltd
Original Assignee
LJS Practice Management Ltd
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 GB838302972A external-priority patent/GB8302972D0/en
Application filed by LJS Practice Management Ltd filed Critical LJS Practice Management Ltd
Publication of GB8505501D0 publication Critical patent/GB8505501D0/en
Publication of GB2155628A publication Critical patent/GB2155628A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/22—Measuring arrangements characterised by the use of optical techniques for measuring depth
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/04—Measuring instruments specially adapted for dentistry
    • A61C19/043—Depth measuring of periodontal pockets; Probes therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/85—Investigating moving fluids or granular solids
    • G01N21/8507—Probe photometers, i.e. with optical measuring part dipped into fluid sample

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Biochemistry (AREA)
  • Animal Behavior & Ethology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Epidemiology (AREA)
  • Biomedical Technology (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

An instrument for measuring e.g. the depth of periodontal pockets comprise a light source (109), an optical fiber (102) arranged to conduct light from the light source toward a free end (105) of the fiber to be inserted into the pocket to be measured, and a photo detector diode (114) arranged to detect light reflected back along the optical fiber wherein the free end of the optical fiber tapers. The instrument is also capable of measuring characteristics of liquids such as their content of light absorbent constitutents.
GB08505501A 1983-02-03 1984-02-03 Optical probe to measure the depth of a cavity Withdrawn GB2155628A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB838302972A GB8302972D0 (en) 1983-02-03 1983-02-03 Instrument for measuring depths of cavities
GB838331271A GB8331271D0 (en) 1983-02-03 1983-11-23 Measuring instruments
PCT/GB1984/000029 WO1984003143A1 (en) 1983-02-03 1984-02-03 Optical probe to measure the depth of a cavity

Publications (2)

Publication Number Publication Date
GB8505501D0 GB8505501D0 (en) 1985-04-03
GB2155628A true GB2155628A (en) 1985-09-25

Family

ID=26285123

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08505501A Withdrawn GB2155628A (en) 1983-02-03 1984-02-03 Optical probe to measure the depth of a cavity

Country Status (3)

Country Link
EP (1) EP0163645A1 (en)
GB (1) GB2155628A (en)
WO (1) WO1984003143A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5440393A (en) * 1990-03-13 1995-08-08 Com Dent Gmbh Process and device for measuring the dimensions of a space, in particular a buccal cavity

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2193579B (en) * 1985-03-21 1989-03-15 Vs Remek Ltd Measuring instruments
GB8507319D0 (en) * 1985-03-21 1985-05-01 Vs Remek Ltd Measuring instruments
EP0384548A3 (en) * 1986-03-31 1990-11-28 Jerome B. Ackerman Measuring probe
DE3714739A1 (en) * 1987-05-02 1988-11-17 Patrik Dr Med Gruendler DEVICE FOR MEASURING THE DEPTH OF THE GUM BAGS IN PERIODONTOPATHY
IT1219123B (en) * 1988-03-18 1990-05-03 Veglia Borletti Srl METHOD FOR DETECTION OF THE LEVEL OF A LIQUID IN A TANK AND SENSOR REALIZING SUCH METHOD
FR2635382A1 (en) * 1988-08-10 1990-02-16 Aerospatiale Device for measuring the depth of a hole in an article or an assembly of articles
US5022856A (en) * 1988-08-26 1991-06-11 Alan Zimble Dental probe assembly
EP0433537B1 (en) * 1989-12-20 1994-03-09 Dieter Dr. Fuierer Periodontal depth probe
FR2662248B1 (en) * 1990-05-16 1993-12-03 Jaeger OPTICAL DEVICE FOR MEASURING THE LEVEL OF A LIQUID IN A TANK BY DEVIATION OF A LIGHT BEAM.
US5271734A (en) * 1991-10-01 1993-12-21 Hideyuki Takeuchi Light-emitting dental probe for measuring gum pockets
US5423677A (en) * 1993-11-04 1995-06-13 Brattesani; Steven J. Periodontal probe tip and method for using
CA2794231C (en) 2012-10-31 2018-08-14 Ioannidis Nektarios Periodontal probe with touch sensing
EP3865048A1 (en) 2020-02-14 2021-08-18 Koninklijke Philips N.V. Providing an indication of a person's gum health
WO2021151074A1 (en) * 2020-01-24 2021-07-29 Dental Smartmirror, Inc. A periodontal probe and methods of reading periodontal pockets depth

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068739A (en) * 1958-06-23 1962-12-18 American Optical Corp Flexible optical probe
FR1538655A (en) * 1967-07-11 1968-09-06 Thomson Houston Comp Francaise Advanced training in dishwashing machines
DE3012328A1 (en) * 1979-04-10 1980-10-30 Asea Ab FIBER OPTICAL MEASURING DEVICE
EP0063778A2 (en) * 1981-04-22 1982-11-03 Sumitomo Electric Industries Limited Switching device for spectral analyzer for living tissues

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068739A (en) * 1958-06-23 1962-12-18 American Optical Corp Flexible optical probe
FR1538655A (en) * 1967-07-11 1968-09-06 Thomson Houston Comp Francaise Advanced training in dishwashing machines
DE3012328A1 (en) * 1979-04-10 1980-10-30 Asea Ab FIBER OPTICAL MEASURING DEVICE
EP0063778A2 (en) * 1981-04-22 1982-11-03 Sumitomo Electric Industries Limited Switching device for spectral analyzer for living tissues

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5440393A (en) * 1990-03-13 1995-08-08 Com Dent Gmbh Process and device for measuring the dimensions of a space, in particular a buccal cavity

Also Published As

Publication number Publication date
GB8505501D0 (en) 1985-04-03
EP0163645A1 (en) 1985-12-11
WO1984003143A1 (en) 1984-08-16

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)