CA2707193A1 - Non-contact ultrasound measurement device - Google Patents
Non-contact ultrasound measurement device Download PDFInfo
- Publication number
- CA2707193A1 CA2707193A1 CA2707193A CA2707193A CA2707193A1 CA 2707193 A1 CA2707193 A1 CA 2707193A1 CA 2707193 A CA2707193 A CA 2707193A CA 2707193 A CA2707193 A CA 2707193A CA 2707193 A1 CA2707193 A1 CA 2707193A1
- Authority
- CA
- Canada
- Prior art keywords
- eye
- measurement
- unit
- transducer
- ultrasound
- 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.)
- Abandoned
Links
- 238000005259 measurement Methods 0.000 title claims abstract description 87
- 238000002604 ultrasonography Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 claims abstract description 4
- 230000003287 optical effect Effects 0.000 claims description 93
- 210000004087 cornea Anatomy 0.000 claims description 33
- 230000004410 intraocular pressure Effects 0.000 claims description 22
- 238000003384 imaging method Methods 0.000 description 15
- 238000005286 illumination Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000009530 blood pressure measurement Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 210000000399 corneal endothelial cell Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000002159 anterior chamber Anatomy 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 210000001110 axial length eye Anatomy 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/10—Eye inspection
-
- 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
- A61B3/14—Arrangements specially adapted for eye photography
- A61B3/15—Arrangements specially adapted for eye photography with means for aligning, spacing or blocking spurious reflection ; with means for relaxing
- A61B3/152—Arrangements specially adapted for eye photography with means for aligning, spacing or blocking spurious reflection ; with means for relaxing for aligning
-
- 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)
- General Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Biophysics (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Radiology & Medical Imaging (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Eye Examination Apparatus (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009138620A JP5469381B2 (ja) | 2009-06-09 | 2009-06-09 | 非接触式超音波測定装置 |
| JP2009-138620 | 2009-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2707193A1 true CA2707193A1 (en) | 2010-12-09 |
Family
ID=42333326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2707193A Abandoned CA2707193A1 (en) | 2009-06-09 | 2010-06-08 | Non-contact ultrasound measurement device |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20100312087A1 (enExample) |
| EP (1) | EP2260765B1 (enExample) |
| JP (1) | JP5469381B2 (enExample) |
| CA (1) | CA2707193A1 (enExample) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5562703B2 (ja) * | 2010-03-31 | 2014-07-30 | 株式会社ニデック | 非接触式超音波眼圧計 |
| WO2019189272A1 (ja) * | 2018-03-30 | 2019-10-03 | 株式会社ニデック | 非接触式超音波眼圧計 |
| JP7259599B2 (ja) * | 2019-07-03 | 2023-04-18 | 株式会社ニデック | 超音波眼圧計 |
Family Cites Families (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4764006A (en) * | 1985-09-13 | 1988-08-16 | Canon Kabushiki Kaisha | Ophthalmic measuring apparatus |
| US5325135A (en) * | 1987-03-06 | 1994-06-28 | Canon Kabushiki Kaisha | Ophthalmologic apparatus having two measuring systems |
| US5183044A (en) * | 1987-06-30 | 1993-02-02 | Kabushiki Kaisha Topcon | Noncontact type tonometer |
| US4928697A (en) * | 1988-09-28 | 1990-05-29 | The Ohio State University | Non-contact high frequency tonometer |
| JP2778153B2 (ja) * | 1989-09-28 | 1998-07-23 | 株式会社島津製作所 | 超音波探触子 |
| US6234966B1 (en) * | 1991-08-31 | 2001-05-22 | Nidek Co., Ltd. | Noncontact type tonometer |
| JPH05253190A (ja) * | 1991-10-10 | 1993-10-05 | Massie Res Lab Inc | 非接触式トノメーター |
| US5287331A (en) * | 1992-10-26 | 1994-02-15 | Queen's University | Air coupled ultrasonic transducer |
| GB9308286D0 (en) * | 1993-04-22 | 1993-06-09 | Toleman Paul | Tonometer |
| CA2169307C (en) * | 1994-12-12 | 2003-10-14 | David A. Hutchins | Non-contact characterization and inspection of materials using wideband air coupled ultrasound |
| JP3461957B2 (ja) * | 1995-02-28 | 2003-10-27 | 株式会社ニデック | 眼科装置 |
| US5865742A (en) * | 1995-03-06 | 1999-02-02 | Massie Research Laboratories, Inc. | Non-contact tonometer |
| EP0894266B1 (de) * | 1996-04-18 | 2002-11-27 | Ramseier, Hans-Ulrich | Charakterisierung von objekten mittels ultraschall |
| US6339961B1 (en) * | 1996-11-15 | 2002-01-22 | Ue Systems, Inc. | Ultrasonic detecting lubrication apparatus with acoustically isolated transducer |
| US6030343A (en) * | 1997-09-03 | 2000-02-29 | Pgvc Lp | Single beam tone burst ultrasonic non contact tonometer and method of measuring intraocular pressure |
| US6494577B2 (en) * | 2000-03-17 | 2002-12-17 | Canon Kabushiki Kaisha | Ophthalmologic apparatus |
| JP3693561B2 (ja) * | 2000-07-26 | 2005-09-07 | 株式会社ニデック | 非接触式眼圧計 |
| US7101335B2 (en) * | 2001-02-01 | 2006-09-05 | Nidek Co., Ltd. | Non-contact type tonometer |
| US6673014B2 (en) * | 2001-10-05 | 2004-01-06 | Itonix, Inc. | Noninvasive methods and apparatuses for measuring the intraocular pressure of a mammal eye |
| EP1446238B1 (en) * | 2001-10-23 | 2012-06-20 | SCHINDEL, David W. | Ultrasonic printed circuit board transducer |
| DE102006033035B4 (de) * | 2006-07-14 | 2015-06-03 | Universität Bremen | Vorrichtung und Verfahren zur berührungslosen Innendruckbestimmung |
| WO2008072527A1 (ja) | 2006-12-08 | 2008-06-19 | Nihon University | 眼圧測定装置 |
| JP5172141B2 (ja) * | 2006-12-26 | 2013-03-27 | 株式会社ニデック | 眼軸長測定装置 |
| US8092018B2 (en) * | 2008-05-03 | 2012-01-10 | Nidek Co., Ltd. | Non-contact ultrasonic tonometer |
| JP5396633B2 (ja) * | 2008-05-03 | 2014-01-22 | 株式会社ニデック | 非接触式超音波眼圧計 |
-
2009
- 2009-06-09 JP JP2009138620A patent/JP5469381B2/ja not_active Expired - Fee Related
-
2010
- 2010-06-07 US US12/795,061 patent/US20100312087A1/en not_active Abandoned
- 2010-06-08 CA CA2707193A patent/CA2707193A1/en not_active Abandoned
- 2010-06-09 EP EP10165412A patent/EP2260765B1/en not_active Not-in-force
Also Published As
| Publication number | Publication date |
|---|---|
| US20100312087A1 (en) | 2010-12-09 |
| EP2260765B1 (en) | 2013-03-06 |
| JP5469381B2 (ja) | 2014-04-16 |
| EP2260765A1 (en) | 2010-12-15 |
| JP2010284223A (ja) | 2010-12-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |
Effective date: 20160608 |