CN108937846A - A kind of foveal region of retina arterial pressure measurement device and measurement method - Google Patents
A kind of foveal region of retina arterial pressure measurement device and measurement method Download PDFInfo
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- CN108937846A CN108937846A CN201810793658.0A CN201810793658A CN108937846A CN 108937846 A CN108937846 A CN 108937846A CN 201810793658 A CN201810793658 A CN 201810793658A CN 108937846 A CN108937846 A CN 108937846A
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- 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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Abstract
The invention discloses a kind of noninvasive foveal region of retina arterial pressure measurement device and measurement methods, device includes surveying pressuring gasbag, survey pressure cylinder, air charging system, pressure sensor, one-chip computer module, input and display device and three-dimensional moving device, the front end for surveying pressure cylinder connects the survey pressuring gasbag, the rear end for surveying pressure cylinder connects the pressure sensor, the air charging system connects the survey pressure cylinder, the survey pressure cylinder and the survey pressuring gasbag are arranged on the three-dimensional moving device, the pressure sensor, the input and display device is connected with the one-chip computer module respectively.The noninvasive foveal region of retina arterial pressure measurement device automatic measurement of the present invention, it is noninvasive, it is not necessarily to professional training, measurement accuracy is high.
Description
Technical field
The present invention relates to medical detection technologies, and in particular to a kind of foveal region of retina arterial pressure measurement device and measurement
Method.
Background technique
The artery of eye ground is the blood vessel that Whole Body uniquely can see, hypertension, artery sclerosis, diabetes etc.
It will lead to the variation of foveal region of retina angiosthenia, foveal region of retina angiosthenia exceeds a certain range, will cause to visual function
Damage, needs to take positive treatment means in time.Therefore, clinically if foveal region of retina angiosthenia can be measured directly,
Help to quantify retinal arteriosclerosis degree and assess injury of carotid artery blood flow, provides evaluation measures to treatment.
A kind of ophthalmodynamometer (ophthalmodynamometer, ODM) configured with Goldmann contact lense
Can more intuitive and accurate measurement arter centralis retinae pressure, pass through this tool measure arter centralis retinae diastolic pressure
(diastolic central retinal artery pressure, diastCRAP) is for evaluation CAS operation for eye
The influence of blood supply state has important hints effect.When pressure is applied to eyeball surface by a plunger, operator uses one
A hand-held amplifying device (ophthalmoscope) observes the blood flow of arteria retina, judges that foveal region of retina is dynamic by the blocking of blood flow
Pulse pressure.The blood supply of eye and brain derives from arteria carotis, and ODM is a kind of method of indirect assessment arteria carotis pressure.Retina
Angiosthenia reduces prompt carotid artery stenosis (risk factor of heart infarction).The effect of ODM includes two aspects:
● facilitate the patient of the carotid artery stenosis or obstruction caused by assessing because of atherosclerotic plaque
● the pressure of measurement eyes retina blood vessel
It must be operated by the ODM operator of profession when measurement, if having contact lenses before measurement, it is necessary to take down eye
Eyeball.Give local anaesthesia eye drops within 5-10 minutes before operation.Process is as follows:
● a plunger applying pressure to eyeball surface, while doctor is fought by the pulse that ophthalmoscope observes arteria retina
It is dynamic
● retinal arterial pressure is recorded
● in addition one eye eyeball repeats this process
● every eye measurement needs 5-15 seconds
Eye doctor records data, and foveal region of retina angiosthenia is compared to systolic pressure, also compares between eyes.Eyes it
Between foveal region of retina artery pressure difference be more than 20% to show that there are injury of carotid artery blood flows for lower numerical value side
ODM needs professional to operate when operating, and measurement process is cumbersome, different operation personnel's eyesight, the factors such as attention
It will affect measurement result, measurement error is big, and consistency is poor.Therefore, it is necessary to a kind of equipment for capableing of automatic measurement is invented, gram
It takes measuring device existing for ODM and measurement method measurement error is big, measuring process is cumbersome, be easy to cause infection, measurement cost high
Defect.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the deficiencies of the prior art, providing a kind of noninvasive foveal region of retina
Arterial pressure measurement device and measurement method overcome foveal region of retina arterial pressure measurement device and the measurement method measurement of the prior art
Error is big, and measuring process is cumbersome, the defect for be easy to causeing infection, measurement cost high.
The present invention to solve above-mentioned technical problem used by technical solution are as follows:
A kind of noninvasive foveal region of retina arterial pressure measurement device, including survey pressuring gasbag, survey pressure cylinder, air charging system, pressure biography
Sensor, one-chip computer module, input and display device and three-dimensional moving device, the front end connection survey for surveying pressure cylinder are calmed the anger
Capsule, the rear end for surveying pressure cylinder connect the pressure sensor, and the air charging system connects the survey pressure cylinder, the surveys pressure cylinder with
The survey pressuring gasbag is arranged on the three-dimensional moving device, the pressure sensor, the input and display device respectively with
The one-chip computer module is connected.
According to a particular embodiment of the invention, the three-dimensional moving device includes stepper motor and guide track system.
According to a particular embodiment of the invention, the air charging system includes air pump, and the air pump passes through described in air circuit connection
Survey pressure cylinder.
According to a particular embodiment of the invention, further include holder,head, a spacing is provided on the holder,head and is adjusted
Device.
It according to a particular embodiment of the invention, further include movement handle apparatus, the movement handle apparatus and the monolithic
Machine module is connected.
It according to a particular embodiment of the invention, further include video camera, the video camera is connected with the one-chip computer module.
According to a particular embodiment of the invention, the input and display device is set as touch display screen.
According to a particular embodiment of the invention, the one-chip computer module includes amplifier and AD conversion module, the amplification
Device is connected with the AD conversion module, and the pressure sensor is connected with the amplifier.
A kind of noninvasive foveal region of retina arterial pressure measurement method, comprising steps of
A1, pressuring gasbag is surveyed close to eye socket by movement handle control；
Pressuring gasbag and eyeball spacing are surveyed in A2, adjustment；
A3, survey pressure cylinder is inflated；
A4, survey pressure cylinder pressure data is input to one-chip computer module；
A5, one-chip computer module will survey pressure cylinder pressure data and be converted into foveal region of retina angiosthenia data and send touch display screen
Display.
According to a particular embodiment of the invention, pressure data upper limit threshold is set, if surveying pressure cylinder pressure data reaches this
Upper limit threshold then stops measuring.
Implement technical solution of the present invention, has the advantages that the present invention will survey in pressure cylinder by pressure sensor
Pressure signal be converted to electric signal, then by analog electrical signal filtering, enhanced processing, then be input in computer system, count
Calculation machine system is AD converted the electric signal of input and final foveal region of retina angiosthenia numerical value is transmitted to display.Doctor
Business personnel directly observes the foveal region of retina angiosthenias of right and left eyes by display, when avoiding reading caused by error and conversion,
Keep foveal region of retina angiosthenia more intuitive, accurate, the noninvasive foveal region of retina arterial pressure measurement device automatic measurement of the present invention, nothing
Wound, is not necessarily to professional training, and measurement accuracy is high.
Detailed description of the invention
It is specifically described the present invention below with reference to attached drawing and in conjunction with example, advantages of the present invention and implementation will
It is more obvious, wherein content only for the purpose of explanation of the present invention shown in attached drawing, without constitute to it is of the invention in all senses
On limitation, in the accompanying drawings:
Fig. 1 is that prior art foveal region of retina arterial pressure measurement instrument uses figure；
Fig. 2 is the noninvasive foveal region of retina arterial pressure measurement schematic device of the present invention；
Fig. 3 is the noninvasive another visual angle schematic diagram of foveal region of retina arterial pressure measurement device of the present invention；
Fig. 4 is the partial enlargement diagram of Fig. 3；
Fig. 5 is the noninvasive foveal region of retina arterial pressure measurement apparatus module schematic diagram of the present invention；
Fig. 6 is that the present invention surveys pressuring gasbag three-dimensional motion control schematic diagram；
Fig. 7 is pressure measuring service schematic diagram of the present invention；
Fig. 8 is the noninvasive foveal region of retina arterial pressure measurement flow chart of the present invention；
Fig. 9 is the noninvasive foveal region of retina artery measurement device circuit control schematic diagram of the present invention.
Figure 10 is the background information figure of the noninvasive foveal region of retina artery measurement device of the present invention
Specific embodiment
As shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the noninvasive foveal region of retina arterial pressure measurement device of the present invention includes surveying pressuring gasbag
20, pressure cylinder 22, air charging system 23, pressure sensor 26, one-chip computer module 25, input and display device 17 and three-dimensional mobile dress are surveyed
16 are set, pressuring gasbag 20 is surveyed in the front end connection for surveying pressure cylinder 22, and the rear end for surveying pressure cylinder 22 connects pressure sensor 26, air charging system 23
Connection survey pressure cylinder 22, survey pressure cylinder 22 and survey pressuring gasbag 20 are arranged on three-dimensional moving device 16, and pressure sensor 26 is inputted and shown
Showing device 17 is connected with one-chip computer module 25 respectively.According to a particular embodiment of the invention, three-dimensional moving device 16 includes stepping
Motor and guide track system.Air charging system 23 includes air pump 24, and air pump 24 surveys pressure cylinder 22 by air circuit connection.It further include holder,head
27, a spacing adjusting device 13 is provided on holder,head 27.Further include movement handle apparatus 18, movement handle apparatus 18 with
One-chip computer module 25 is connected.It further include video camera 21, video camera 21 is connected with one-chip computer module 25.Input and display device 17
It is set as touch display screen.One-chip computer module 25 includes amplifier and AD conversion module, and amplifier is connected with AD conversion module, pressure
Sensor 26 is connected with amplifier.Pressuring gasbag connection is surveyed when measurement surveys in pressure cylinder air by air circuit connection to pressure sensor,
Air pressure switchs to electric signal by pressure sensor, and computer system is entered after AD conversion, calculates pressure, then continues
Pressure cylinder pressure is surveyed in detection；Secondly by air-pump inflating, increase and survey air pressure in pressure cylinder, push and survey pressuring gasbag, surveys pressuring gasbag and connect
Retina is touched, the air that the blood vessel pulse beating in retinal vessel is transmitted in air bag generates the beat signals of air pressure,
And then digital signal is converted to by AD signal；Finally, calculating view according to the relevant parameters such as pressure value and pulse beat signals
Central retinal artery pressure.
In a particular embodiment, entire measuring device is arranged on a pedestal 11, and the front end of pedestal 11 is provided with
Deck 12, holder,head 27 are arranged on deck 12, and lower jaw support base 28, three-dimensional moving device are provided on holder,head 27
It is provided with deck 29 on 16, surveys pressure cylinder 22 and is arranged on deck 29.
As shown in Fig. 6, Fig. 7, Fig. 8 and Fig. 9, the noninvasive foveal region of retina arterial pressure measurement method of the present invention, comprising steps of
A1, pressuring gasbag is surveyed close to eye socket by movement handle control；
Pressuring gasbag and eyeball spacing are surveyed in A2, adjustment；
A3, survey pressure cylinder is inflated；
A4, survey pressure cylinder pressure data is input to one-chip computer module；
A5, one-chip computer module will survey pressure cylinder pressure data and be converted into foveal region of retina angiosthenia data and send touch display screen
Display.
According to a particular embodiment of the invention, pressure data upper limit threshold is set, if surveying pressure cylinder pressure data reaches this
Upper limit threshold then stops measuring.
Specific measurement process:
1. tested person's chin resists lower jaw support base 28, head still is kept, eyes are closed；
2. manually adjusting 28 height of lower jaw support base according to tested person's height；
3. operational movement handle 18, by computer system control stepper motor, so that deck 29 up and down move by front and back
Dynamic, survey pressuring gasbag 20 one surveys equipped with small-sized image pickup head 21, and signal is connected to display, is observed by display 17, mobile to survey
Pressuring gasbag 20 is aligned one eye ball；
4. computer system control air pump qi of chong channel ascending adversely, closes air valve, display monitoring surveys pressure cylinder pressure；
It moves forward 5. moving the control of handle 18 and surveying pressuring gasbag 20, after detecting that surveying 22 pressure of pressure cylinder slightly rises, shows
It surveys pressuring gasbag 20 and has contacted eyelid on the outside of eyeball, select lock function, keep movement handle 18 locked；
6. starting to measure:
1) computer system control air charging system 23 is inflated with constant speed, makes to survey pressuring gasbag 20 to eyeball movement, pressure
Pressure value is switched to electric signal by force snesor 26, which is transmitted further to department of computer science after the processing such as filtering, amplifying
System, the data such as computer system measured pressure value and pulse beat signals calculate foveal region of retina angiosthenia；
2) when pressure value crosses threshold value (being arranged according to clinical data), such as: in test process, because of measured's head
When portion is rocked or survey pressure bolt is caused to be increased to some value to eye pressure for other extraneous factors, air charging system 23 stops
Inflation, air valve are opened, and pressure discharges rapidly, abandons this time measuring；
3) after having measured left eye, then right eye is surveyed；Measurement process is as left eye, and instrument exits measurement pattern after having measured；
4) measurement data is printed.
Those skilled in the art do not depart from essence and spirit of the invention, can there are many deformation scheme realize the present invention,
The foregoing is merely preferably feasible embodiments of the invention, and not thereby limiting the scope of the invention, all with this
The variation of equivalent structure made by description of the invention and accompanying drawing content, is intended to be included within the scope of the present invention.
Claims (10)
1. a kind of foveal region of retina arterial pressure measurement device, it is characterised in that: including surveying pressuring gasbag, surveying pressure cylinder, air charging system, pressure
Force snesor, one-chip computer module, input and display device and three-dimensional moving device, the front end for surveying pressure cylinder connect the survey pressure
Air bag, the rear end for surveying pressure cylinder connect the pressure sensor, and the air charging system connects the survey pressure cylinder, the survey pressure cylinder
It is arranged on the three-dimensional moving device with the survey pressuring gasbag, the pressure sensor, input and display device difference
It is connected with the one-chip computer module.
2. foveal region of retina arterial pressure measurement device according to claim 1, it is characterised in that: the three-dimensional moving device
Including stepper motor and guide track system.
3. foveal region of retina arterial pressure measurement device according to claim 1, it is characterised in that: the air charging system includes
Air pump, the air pump is by surveying pressure cylinder described in air circuit connection.
4. foveal region of retina arterial pressure measurement device according to claim 1, it is characterised in that: further include holder,head.
5. foveal region of retina arterial pressure measurement device according to claim 4, it is characterised in that: further include movement handle dress
It sets, the movement handle apparatus is connected with the one-chip computer module.
6. foveal region of retina arterial pressure measurement device according to claim 1, it is characterised in that: it further include video camera, institute
Video camera is stated to be connected with the one-chip computer module.
7. foveal region of retina arterial pressure measurement device according to claim 1, it is characterised in that: the input and display dress
It installs as touch display screen.
8. foveal region of retina arterial pressure measurement device according to claim 1, it is characterised in that: the one-chip computer module packet
Amplifier and AD conversion module are included, the amplifier is connected with the AD conversion module, the pressure sensor and the amplification
Device is connected.
9. a kind of foveal region of retina arterial pressure measurement device, which is characterized in that comprising steps of
A1, pressuring gasbag is surveyed close to eyeball surface by movement handle control；
A2, cover survey pressuring gasbag on eyeball completely
A3, survey pressure cylinder is slowly inflated；
A4, survey pressure cylinder pressure data is input to one-chip computer module；
A5, one-chip computer module will survey pressure cylinder pressure data and be converted into foveal region of retina angiosthenia data and touch display screen is sent to show
Show.
10. foveal region of retina arterial pressure measurement method according to claim 9, it is characterised in that: on setting pressure data
Threshold value is limited, if surveying pressure cylinder pressure data reaches the upper limit threshold, stops measuring.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810793658.0A CN108937846A (en) | 2018-07-11 | 2018-07-11 | A kind of foveal region of retina arterial pressure measurement device and measurement method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810793658.0A CN108937846A (en) | 2018-07-11 | 2018-07-11 | A kind of foveal region of retina arterial pressure measurement device and measurement method |
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| CN108937846A true CN108937846A (en) | 2018-12-07 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1187760A (en) * | 1995-04-21 | 1998-07-15 | 伯恩哈德·洛 | Ophthalmodynamometer and its process of operation |
| CN204654882U (en) * | 2015-05-25 | 2015-09-23 | 成都格莱飞科技股份有限公司 | The contactless corneal tonometer of novel low-cost |
| CN205458600U (en) * | 2014-06-25 | 2016-08-17 | 佛山市第一人民医院 | Adjustable air gap pulse air pressure measuring device |
| CN107569208A (en) * | 2017-08-25 | 2018-01-12 | 深圳市眼科医院 | A kind of noninvasive eye socket pressure measuring device and measuring method |
| CN108185985A (en) * | 2018-01-26 | 2018-06-22 | 深圳市眼科医院 | A kind of noninvasive eye socket pressure measures double protecting device and guard method |
-
2018
- 2018-07-11 CN CN201810793658.0A patent/CN108937846A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1187760A (en) * | 1995-04-21 | 1998-07-15 | 伯恩哈德·洛 | Ophthalmodynamometer and its process of operation |
| CN205458600U (en) * | 2014-06-25 | 2016-08-17 | 佛山市第一人民医院 | Adjustable air gap pulse air pressure measuring device |
| CN204654882U (en) * | 2015-05-25 | 2015-09-23 | 成都格莱飞科技股份有限公司 | The contactless corneal tonometer of novel low-cost |
| CN107569208A (en) * | 2017-08-25 | 2018-01-12 | 深圳市眼科医院 | A kind of noninvasive eye socket pressure measuring device and measuring method |
| CN108185985A (en) * | 2018-01-26 | 2018-06-22 | 深圳市眼科医院 | A kind of noninvasive eye socket pressure measures double protecting device and guard method |
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Application publication date: 20181207 |