CN105982639A - Intraocular pressure detection device - Google Patents
Intraocular pressure detection device Download PDFInfo
- Publication number
- CN105982639A CN105982639A CN201510067093.4A CN201510067093A CN105982639A CN 105982639 A CN105982639 A CN 105982639A CN 201510067093 A CN201510067093 A CN 201510067093A CN 105982639 A CN105982639 A CN 105982639A
- Authority
- CN
- China
- Prior art keywords
- light path
- detection
- comparison
- signal
- eyeball
- 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.)
- Pending
Links
Landscapes
- Eye Examination Apparatus (AREA)
Abstract
The invention relates to an intraocular pressure detection device which comprises a sampling device, a comparison device and a detection device, wherein the sampling device is provided with an open window, an image unit and an air spray hole; the open window is provided with a through hole; the image unit directly forms an image light path with an eyeball via the through hole; the air spray device cooperates with the through hole and forms an air blowing path toward the eyeball; the comparison device is provided with a reflector and a drive device for driving the reflector to move; the detection device is connected with the sampling device and the comparison device and forms a detection light path with the eyeball via the through hole of the open window and also forms a comparison light path with the reflector; the detection device projects the first and second detection signals toward the detection light path and comparison light path and obtains the first and second reflected signals; and the detection device receives the first and second reflected signals and can calculate the intraocular pressure value and corneal thickness at the same time.
Description
Technical field
The present invention, about a kind of detection device carrying out level pressure air blowing for testee's eyes, particularly relates to one
The intraocular tension testing device of intraocular pressure numerical value and corneal thickness can be calculated simultaneously.
Background technology
Check that the instrument of intraocular pressure is a lot, common are planishing type tonometer, intraocular pressure pen and vapour-pressure type tonometer.
So-called planishing type tonometer is then most reliable tonometry method, must put upper anaesthetic in advance at eye before detection
On cornea, then measure intraocular pressure with tonometer contact cornea.
So-called intraocular pressure pen is then similar to the design of planishing type tonometer, is also equally to need contact, mainly carries
Convenient, can be used to Rapid Screening, but fault rate and error rate are also of a relatively high.
And so-called vapour-pressure type tonometer is that to cornea, the gas moment injection of certain pressure is flattened cornea,
Applying electronic is detected the reactions change amount of back wave and is conversed intraocular pressure numerical value, and its major advantage need not contact disease
The cornea of people, but intraocular pressure more than height to thirty to four ten millimetres of mercury when can error, be therefore mainly used for more
Screening.
Please join shown in Fig. 1, conventional gas formula tonometer is provided with a slit plate 11 in eyeball 10 front, and in narrow
Seam plate 11 rear is sequentially arranged and is set the first lens 12 and the second lens 13, by the second lens 13 rear direct
Photosensory assembly 14 forms an image light path 15, and wherein, blowning installation (not shown) is installed in the first lens 12
And between nozzle 11, and air is formed an air blowing path 16 by the space of nozzle 11 directly blow and penetrate eyeball
10。
And the detection light path 17 of conventional gas formula tonometer, it is with the infrared ray of one and blowning installation different directions
Light source 18 (Infrared light source) is projected to eyeball 10, and by a light source receiving device
19 (Photoelectric cell) receives the signal being reflected by eyeball 10 and converses intraocular pressure numerical value.
But, conventional gas formula tonometer is located on different path from air blowing path because it detects light path, part
On tolerance and assembling on error, the difference in result of determination will be easily caused.Therefore, for making air pressure
Formula tonometer can calculate intraocular pressure numerical value, the detection light path of conventional gas formula tonometer and shadow more accurately
As the real necessity having improvement innovation of light path.
Content of the invention
Present invention is primarily targeted at detection light path and be positioned at different apparatus structures from comparison light path, make tested
Person can detect eyeball pressure value and corneal thickness simultaneously.
The secondary objective of the present invention is to be designed as detection light path and air blowing path on coaxial path, effectively drops
The error impact that low part tolerance causes
For reaching described purpose, the present invention is related to a kind of intraocular tension testing device, in order to detect the eyeball of testee
Pressure and corneal thickness, comprise: a sampler, a comparison device, a detection device and are stared
Unit.
Described sampler has a Perforated window of formation one through hole, and in inside be provided with an image unit and
One air injection unit, described image unit directly and forms an image between eyeball by the through hole of described Perforated window
Light path.
Described comparison device has a speculum and a driving means, and described detection device is connected to
Described sampler and comparison device, and indirectly and formed between eyeball by the Perforated window of described sampler
One detection light path, the another speculum with described comparison device directly forms a comparison light path, described comparison light path
There is one second relay lens, and described driving means drives described speculum selectivity closer or far from institute
State the second relay lens.
Wherein, described detection device comprises: a projection assembly, a spectrum groupware and an operating assembly.Institute
State projection assembly and there is the described first detection signal and the second detection signal, and described spectrum groupware is connected to
Described projection assembly, and described first detection signal is projected to described detection light path and by described second inspection
Survey signal and be projected to described comparison light path, additionally can receive described first reflected signal and the second reflected signal,
Described operating assembly connects described spectrum groupware again, and receives described first reflected signal and the second reflection letter
Number, to converse current intraocular pressure numerical value and corneal thickness.
Additionally, described detection light path passes through one first spectroscope with image light path, make the sense of described image light path
Optical assembly lays respectively at axially different position with the detection device of detection light path, and described first spectroscope with open
Being provided with one first relay lens between the window of hole, described air jet system coordinates the through hole of described Perforated window towards tested
Person's eyeball forms one towards carrying out between described Perforated window and the first relay lens blowing and detects light path position with described
Air blowing path on coaxial position.
Described unit of staring is positioned inside described sampler, and described unit of staring passes through described Perforated window and institute
State eyeball formation one and stare light path, and described light path and the detection light path of staring is by one second spectroscope, makes institute
State to stare light path and detect light path and be positioned at axially different position.
In this preferred embodiment, when the length adjustment of described comparison light path is to being same as described detection light path
Length, described detection device calculates intraocular pressure numerical value by described first reflected signal and the second reflected signal.
The invention is characterized in that detection light path is positioned on coaxial path with the air blowing path of blowning installation simultaneously, have
Effect reduces the error impact that part tolerance causes, additionally, detection device accepts the first reflected signal and second
Reflected signal is to converse the intraocular pressure numerical value of testee's eyes and corneal thickness simultaneously.
Brief description
Fig. 1 is the light path schematic diagram of tradition intraocular tension testing device imaging；And
Fig. 2 is the light path schematic diagram of intraocular tension testing device of the present invention.
Description of reference numerals: 10---eyeball；11---slit plate；12---the first lens；13---the second lens；
14---photosensory assembly；15---image light path；16---air blowing path；17---detects light path；18---infrared ray
Source；19---light source receiving device；20---detects device；21---projects assembly；22---spectrum groupware；23---
Operating assembly；24---first projects part；25---second projects part；26---detects light path；261---the 5th relays
Lens；27---comparison light path；30---sampler；31---Perforated window；311---through hole；32---image unit；
321---image light path；321a---the 3rd relay lens；321b---the 4th relay lens；33---air injection unit；
331---air blowing path；34---stares unit；341---stares light path；35---the first spectroscope；36---second
Spectroscope；37---the first relay lens；40---comparison device；41---speculum；42---the second relay lens；
43---driving means；50---eyeball.
Detailed description of the invention
Hereby for ease of further the construction of the present invention, use and feature thereof are had deeper one layer clear and definite, full and accurate
Understanding and understanding, therefore enumerate preferred embodiment, coordinate accompanying drawing to describe in detail as follows:
Referring to shown in Fig. 2, intraocular tension testing device of the present invention is in order to detect testee's eyeball pressure and cornea
Thickness, and be mainly made up of detection device the 20th, a sampler 30 and a comparison device 40.
Described detection device 20 is main by projection assembly the 21st a, spectrum groupware the 22nd a, operating assembly the 23rd,
One first projection part 24 and one second projection part 25 are constituted.Described projection assembly 21 is connected to described point
Optical assembly 22, and there is one first detection signal and one second detection signal, and described spectrum groupware 22 is even
Connecing described operating assembly 23, described first projection part 24 and the second projection part 25 are connected to described light splitting
Assembly 22, wherein, it is internal that described first projection part 24 is positioned at described sampler 30, and described second throws
Penetrate part 25 and be positioned at described comparison device 40 inside.
Described sampler 30 is connected to described detection device 20, and has a Perforated window the 31st, an image list
The 33rd, unit's the 32nd, air injection unit one stares unit the 34th, one first spectroscope 35 and one second spectroscope 36.
Described Perforated window 31 has a through hole 311, and described image unit 32 passes through the through hole of described Perforated window 31
311 and described first spectroscope 35 directly and form an image light path 321, institute between testee's eyeball 50
State and between Perforated window 31 and the first spectroscope 35, be provided with one first relay lens 37, described air injection unit 33
Between described Perforated window 31 and the first relay lens 37, and coordinate through hole 311 court of described Perforated window 31
Blow to testee's eyeball 50 and form an air blowing path 331.In this preferred embodiment, described air injection unit
33 are blown by piston start back and forth, thus coordinate the through hole 311 of described Perforated window 31 formed described in blow
Gas circuit footpath 331.
In this preferred embodiment, the operating assembly 23 of described detection device 20 is set to a photosensitive coupling component
(CCD, Charge Coupled Device), and the image unit 32 of described sampler 30 is set to a complementation
Formula metal-oxide semiconductor image sensor (CMOS image sensor).
Described stare unit 34 sequentially by the through hole 311 of described second spectroscope 36 and described Perforated window 31
And form one between the eyeball 50 of testee and stare light path 341.Described comparison device 40 is connected to described detection
Device 20, and have a speculum the 41st, one second relay lens 42 and a driving means 43, described drives
Dynamic device 43 drives the energy selectivity of described speculum 41 closer or far from described second relay lens 42.
Wherein, described detection device 20 is by the 22nd, first projection part the 24th, the first light splitting of described spectrum groupware
Shape between the through hole 311 of mirror the 35th, the first relay lens 37 and described Perforated window 31 and testee's eyeball 50
The detection light path 26 that air blowing path 331 described in Cheng Yiyu is positioned on coaxial path, in addition, described detection device
20 by described spectrum groupware the 22nd, the second projection part the 25th, described second relay lens 42 and described speculum
Form a comparison light path 27 between 41.
And described image light path 321 and detection light path 26 pass through described first spectroscope 35, make described image
The image unit 32 of light path 321 is positioned at axially different position with the detection device 20 of detection light path 26, in addition,
Described stare light path 341 and detection light path 26 by described second spectroscope 36 make described in stare unit 34 with
Detection device 20 is positioned at axially different position.
In this preferred embodiment, described image light path 321 has one the 3rd relay lens 321a and
4th relay lens 321b, and described 3rd relay lens 321a and the 4th relay lens 321b is positioned at institute
State between image unit 32 and the first spectroscope 35, in addition, described detection light path 26 is positioned at described first point
Light microscopic 35 has one the 5th relay lens 261 relative to the side of described first relay lens 37.
When concrete application, testee's eyeball 50 is adjacent to the through hole 311 of described Perforated window 31, and passes through institute
State and stare light path 341 and stare unit 34 described in watching attentively, and the projection assembly 21 of described detection device 20 is held
Continue and described first detection signal and the second detection signal are projected towards described spectrum groupware 22, described light splitting group
Described first detection signal projection and the second detection signal are projected to the first projection part 24 by part 22 simultaneously respectively
And second projection part 25.
Described first detection signal is projected by described first projection part 24 towards described detection light path 26,
And reflecting to form one first reflected signal via testee's eyeball 50, described first reflected signal is further along described
Detection light path 26 is projected to the spectrum groupware 22 of described detection device 20.And described driving means 43 drives institute
State speculum 41 to move, with change between described speculum 41 with described second relay lens 42 relative away from
From, and then make described detection light path 26 identical with the length of comparison light path 27.
Thus, described second detection signal is carried out by described second projection part 25 towards described comparison light path 27
Projection, and reflected to form one corresponding to described first reflected signal by described comparison device 40 speculum 41
The second reflected signal, described second reflected signal further along described comparison light path 27 be projected to described detection dress
Put the spectrum groupware 22 of 20, and the spectrum groupware 22 of described detection device 20 can be again by described first reflection letter
Number and the transmission of the second reflected signal to described operating assembly 23, described operating assembly 23 is by described first anti-
Penetrate signal and the second reflected signal starts computing testee's eyeball 50 intraocular pressure numerical value and corneal thickness.
It follows that described air injection unit 33 is blown towards the eyeball 50 of testee according to described air blowing path 331
Gas, make the eyeball 50 of testee by air inward compression, to increase the length of described detection light path 26,
Thereby, described first reflected signal is made cannot to correspond to described second reflected signal, and described comparison device 40
Driving means 43 described speculum 41 can be driven away from described second relay lens 42, make described comparison light
The length on road 27 is equal to the length of detection light path 26, and then makes described first instead to survey signal and the second reflection letter
Number mutual correspondence, the operating assembly 23 causing described detection device 20 can be by the first reflected signal and the
Two reflected signal news calculate testee's intraocular pressure numerical value and corneal thickness simultaneously.
In sum, the present invention is positioned at coaxial path by detection light path with the air blowing path of blowning installation simultaneously
On, effectively reduce the error impact that part tolerance causes, additionally, detection device accept the first reflected signal with
And second reflected signal to converse the intraocular pressure numerical value of testee's eyes and corneal thickness simultaneously.
It described above is merely exemplary for the purpose of the present invention, and nonrestrictive, ordinary skill people
Member understands, in the case of the spirit and scope being limited without departing from claim, can make many modifications,
Change or equivalence, but fall within protection scope of the present invention.
Claims (9)
1. an intraocular tension testing device, in order to detect eyeball pressure and the corneal thickness of testee, its feature
It is, comprising:
One sampler, has a Perforated window of formation one through hole, and in inside arrange an image unit and
One air injection unit, described image unit directly and forms an image between eyeball by the through hole of described Perforated window
Light path, described air jet system coordinates the through hole of described Perforated window to form an air blowing road towards the air blowing of testee's eyeball
Footpath；
One comparison device, has a speculum and a driving means, and described driving means drives described reflection
Mirror produces displacement；And
One detection device, is connected to described sampler and comparison device, and passes through described sampler
Perforated window indirectly and between eyeball, form a detection light path, the another direct shape of speculum with described comparison device
Become a comparison light path；
Wherein, described detection device is respectively facing described detection light path and comparison light path projection one first detection
Signal and one second detection signal, it is anti-that described first detection signal is formed one first by described ocular reflex
Penetrating signal, described second detection signal is reflected to form one second reflected signal by described speculum, and described
Detection device receives described first reflected signal and the second reflected signal, and coordinates the data of described air jet system
Calculate intraocular pressure numerical value and corneal thickness.
2. intraocular tension testing device according to claim 1, it is characterised in that: described detection device comprises:
One projection assembly, has the described first detection signal and the second detection signal；
One spectrum groupware, is connected to described projection assembly, and described first detection signal is projected to described inspection
Light-metering road and by described second detection signal be projected to described comparison light path, additionally can receive described first anti-
Penetrate signal and the second reflected signal；And
One operating assembly, connects described spectrum groupware, and receives described first reflected signal and the second reflection
Signal, to converse current intraocular pressure numerical value and corneal thickness.
3. intraocular tension testing device according to claim 1, it is characterised in that: described air blowing path with described
Detection light path is positioned on coaxial position.
4. intraocular tension testing device according to claim 1, it is characterised in that: described detection light path and image
Light path passes through one first spectroscope, makes the photosensory assembly of described image light path and the detection device of detection light path divide
It is not positioned at axially different position.
5. intraocular tension testing device according to claim 4, it is characterised in that: described first spectroscope with open
Being further provided with one first relay lens between the window of hole, described air jet system is towards in described Perforated window and first
Continue and blow between lens.
6. intraocular tension testing device according to claim 1, it is characterised in that: when the length of described comparison light path
Degree adjust to be same as described detection light path length, described detection device by described first reflected signal with
And second reflected signal calculate intraocular pressure numerical value.
7. intraocular tension testing device according to claim 1, it is characterised in that: enter inside described sampler
One step is provided with one and stares unit, and described unit of staring stares light by described Perforated window with described eyeball formation one
Road.
8. intraocular tension testing device according to claim 7, it is characterised in that: described stare light path and detection
Light path pass through one second spectroscope, make described in stare light path stare unit with detect light path be positioned at axially different
Position.
9. intraocular tension testing device according to claim 1, it is characterised in that: described comparison light path has one
Second relay lens, and described driving means drives described speculum selectivity closer or far from described second
Relay lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510067093.4A CN105982639A (en) | 2015-02-09 | 2015-02-09 | Intraocular pressure detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510067093.4A CN105982639A (en) | 2015-02-09 | 2015-02-09 | Intraocular pressure detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105982639A true CN105982639A (en) | 2016-10-05 |
Family
ID=57036465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510067093.4A Pending CN105982639A (en) | 2015-02-09 | 2015-02-09 | Intraocular pressure detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105982639A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108992039A (en) * | 2018-09-10 | 2018-12-14 | 潍坊医学院 | Non-contact intraocular tension measuring device and method based on coaxial principle |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1494864A (en) * | 2002-09-11 | 2004-05-12 | ������������ʽ���� | Non-contact tonometer |
| CN1989894A (en) * | 2005-12-28 | 2007-07-04 | 株式会社拓普康 | Alignment method for ophthalmic measurement apparatus and alignment device of the same |
| US20070195330A1 (en) * | 2006-02-22 | 2007-08-23 | Spectratech Inc. | Optical interference apparatus |
| US7329002B2 (en) * | 2004-02-03 | 2008-02-12 | Nidek Co., Ltd. | Ophthalmic apparatus |
| US20110237999A1 (en) * | 2010-03-19 | 2011-09-29 | Avedro Inc. | Systems and methods for applying and monitoring eye therapy |
| CN103169447A (en) * | 2011-12-23 | 2013-06-26 | 明达医学科技股份有限公司 | Jet intraocular pressure detection device |
| TW201338751A (en) * | 2012-03-23 | 2013-10-01 | Crystalvue Medical Corp | Assistive gaze and image-forming focusing device |
| CN103381090A (en) * | 2012-05-04 | 2013-11-06 | 明达医学科技股份有限公司 | Optical intraocular pressure measuring device and operation method thereof |
| CN104127166A (en) * | 2013-04-30 | 2014-11-05 | 明达医学科技股份有限公司 | Optical device |
-
2015
- 2015-02-09 CN CN201510067093.4A patent/CN105982639A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1494864A (en) * | 2002-09-11 | 2004-05-12 | ������������ʽ���� | Non-contact tonometer |
| US7329002B2 (en) * | 2004-02-03 | 2008-02-12 | Nidek Co., Ltd. | Ophthalmic apparatus |
| CN1989894A (en) * | 2005-12-28 | 2007-07-04 | 株式会社拓普康 | Alignment method for ophthalmic measurement apparatus and alignment device of the same |
| US20070195330A1 (en) * | 2006-02-22 | 2007-08-23 | Spectratech Inc. | Optical interference apparatus |
| US20110237999A1 (en) * | 2010-03-19 | 2011-09-29 | Avedro Inc. | Systems and methods for applying and monitoring eye therapy |
| CN103169447A (en) * | 2011-12-23 | 2013-06-26 | 明达医学科技股份有限公司 | Jet intraocular pressure detection device |
| TW201338751A (en) * | 2012-03-23 | 2013-10-01 | Crystalvue Medical Corp | Assistive gaze and image-forming focusing device |
| CN103381090A (en) * | 2012-05-04 | 2013-11-06 | 明达医学科技股份有限公司 | Optical intraocular pressure measuring device and operation method thereof |
| CN104127166A (en) * | 2013-04-30 | 2014-11-05 | 明达医学科技股份有限公司 | Optical device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108992039A (en) * | 2018-09-10 | 2018-12-14 | 潍坊医学院 | Non-contact intraocular tension measuring device and method based on coaxial principle |
| CN108992039B (en) * | 2018-09-10 | 2023-09-01 | 潍坊医学院 | Non-contact intraocular pressure measurement method based on coaxial principle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5340434B2 (en) | Ophthalmic apparatus, processing apparatus, ophthalmic system, processing method, ophthalmic apparatus control method, program | |
| TWI446892B (en) | Jet pressure detection device | |
| CN101677767B (en) | Apparatus and method for observing an eye, as well as oct-module | |
| EP2762060B1 (en) | Optical coherence tomographic imaging apparatus and method for controlling the same | |
| CN103181749B (en) | diagnostic device with automatic focusing function | |
| CN104095610B (en) | Optical system for measuring eyes diopter and cornea curvature radius of human | |
| JP2009201636A (en) | Non-contact type tonometer | |
| JP2009028287A (en) | Noncontact type tonometer | |
| US9089295B2 (en) | Ophthalmic apparatus and storage medium | |
| CN103371800A (en) | Ophthalmic apparatus | |
| KR101647287B1 (en) | Ophthalmologic apparatus and ophthalmologic method | |
| JP2018038518A (en) | Ophthalmologic apparatus | |
| KR20100066391A (en) | Ophthalmological device | |
| CN105982639A (en) | Intraocular pressure detection device | |
| CN103371799B (en) | Fundus detection device for assisting gaze fixation and focusing | |
| JP2002172090A (en) | Non-contact type ophthalmotonometer | |
| JPS6116729A (en) | Tonometer | |
| TWI541002B (en) | Eye pressure detection device | |
| JP5677495B2 (en) | Ophthalmic apparatus and control method thereof | |
| JP7256038B2 (en) | ophthalmic and imaging equipment | |
| US11229359B2 (en) | Ophthalmological device | |
| JPH04285527A (en) | Ophthalmologic device | |
| JP2007330609A (en) | Noncontact type tonometer | |
| US20160256052A1 (en) | Intraocular pressure detecting device | |
| US20140132925A1 (en) | Ophthalmologic apparatus and method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161005 |
|
| WD01 | Invention patent application deemed withdrawn after publication |