CN103181750B - The method of Wearable tonometer and mensuration intraocular pressure thereof - Google Patents
The method of Wearable tonometer and mensuration intraocular pressure thereof Download PDFInfo
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- CN103181750B CN103181750B CN201210562190.7A CN201210562190A CN103181750B CN 103181750 B CN103181750 B CN 103181750B CN 201210562190 A CN201210562190 A CN 201210562190A CN 103181750 B CN103181750 B CN 103181750B
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Abstract
The invention provides a kind of Wearable tonometer, belong to electronic medical instrument field, comprise the pedestal that can be held on by steady forehead or eye socket above the human body bridge of the nose, described pedestal left and right sides connects respectively by human body eye socket around to the arc flap after ear, and two pieces of described flaps are connected by link at described pedestal rear; In two pieces of described flaps and human eye corresponding position, be provided with can in length and breadth two-way range regulate intraocular pressure probe; Be provided with pressure transducer in described intraocular pressure probe, this pressure transducer is electrically connected the microprocessor be located in described pedestal; The outfan of described microprocessor is electrically connected the display unit and data output interface be located on described pedestal.This kind of tonometer is with low cost, is easy to carry about with one, easy to use, safe, is convenient to patient oneself operation detection.
Description
Technical field
The present invention relates to medical Instrument field, particularly, relate to a kind of intraocular pressure with electronic sensing device and take into account the method using described tonometer to measure intraocular pressure.
Background technology
Visual disorder, tumor, cardiovascular disease are the three major types illness affecting people's life quality that World Health Organization (WHO) proposes.The monitoring of daily blood pressure is extremely important to hyperpietic, equally, the daily control of intraocular pressure monitoring to blinding oculopathy, especially extremely important to glaucoma patient.The early stage control of intraocular pressure and intervention, can effectively avoid affecting therapic opportunity adversely, avoids irreversible blinding visual function damage, and the monitoring of these too busy to get away intraocular pressures.Survey the common recognition that the importance of intraocular pressure to blinding eye illness control is ophthalmic industry, along with the appearance of non-contact tonometer, survey the no longer very complicated trouble of process of intraocular pressure, and become the necessary program that most of hospital ophthalmology examines in advance, that examines in advance as same Vasculocardiology Deparment takes blood pressure.Glaucoma is high blinding oculopathy, and its chief complaint is the irreversible lesion of Bulbi hypertonia to visual function, except early discovery and early treatment, once blind, does not have effective treatment means.The incidence rate of glaucoma in crowd is 1-2%, has super patient's number total amount of ten million in China.When people have perceived blind danger, late often.Intraocular pressure monitoring is the necessary means of glaucoma and other Bulbi hypertonia oculopathy early discovery and early treatment.But surveying that intraocular pressure must go to the hospital is real situation now, and the expensive and specialized operation requirements of existing tonometer, makes tonometer also not step into ordinary family as sphygomanometer and blood-glucose meter, monitoring intraocular pressure yet not as taking blood pressure conveniently.
The price of existing tonometer is high, is because its target client is medical institutions or research institution, pursuit be measure precisely, thus its technical scheme is difficult to simplify; Specialized operation requirements is because the necessary testing procedure of its operation principle decision.
No matter existing tonometer is Corneal Contact formula is also non-Corneal Contact formula, and eyelid contact, their operation principle mainly can be classified as two large classes: a class is that the reaction produced on eyeball by fixing gravity is changed and obtained intraocular pressure value, as pressure-sinking type and eyelid type tencnometer; Another kind of is change obtain intraocular pressure value, as planishing type and non-contact tonometer by flattening power that one piece of fixing area uses or weight on cornea.They are also divided into two large classes in form: hand-held and desk-top, and the mode hand-held with operator or the mode be fixed on table top provide stable test platform.These two kinds of modes all need the medical personnel of specialty to operate use, and general patient cannot oneself operate.
Household type tonometer is the current market vacancy, if therefore there is a kind of inexpensive easy-to-use foolproof tonometer to enter ordinary family, effectively can change the situation surveyed intraocular pressure and must go to the hospital, intraocular pressure monitoring in 24 hours also can realize easily, one makes positive contribution to the control of the blinding oculopathy of people surely, and its economic and social benefit will be all apparent.
Summary of the invention
For above-mentioned background, invention has been the innovation of tonometry technology, it comprises three contents:
Be different from hand-held and desk-top profile, the profile of original creation Worn type, its meaning is: need not can obtain stable measuring table by other people and the help of his thing, this is the technology prerequisite realizing user introspection intraocular pressure.
Be different from the surveying work principle of " fixing gravity " and " fixing cornea applanation area ", the surveying work principle of original creation " fixing eyeball according to pressing depth ", its meaning is: be first that technical scheme is simple, this realizes essential condition with low cost; Next is without anesthesia, without sterilization, without infecting, and only has a push action, and belong to foolproof operation, use simple and safe, this is the essential condition realizing general patient introspection.
Introduce intellectualized technology, the software processes after relying on microprocessor implementation data to gather, is pursued and is discarded the dross and selected the essential by software processes, obtains measurement result comparatively accurately.Its meaning is: reduce the requirement to data acquisition precision, can extract intraocular pressure data, and need not extract intraocular pressure data in the mode contacting cornea on eyelid in the mode pressing eyeball.This is the guarantee condition realizing described 2 operation principles.
Tonometer comes into the topmost object of family, is the oculopathy monitoring of the daily intraocular tension monitoring of persons suffering from ocular disorders and general population, to patient the need of timely medication or to seek medical advice and general population provides treatment and health care reference the need of medical.Therefore, the main purposes of the present invention is not accurate measurement and the oculopathy diagnosis of intraocular pressure.
The relatively difference of the operation principle of the present invention and other tonometer, shortcoming is that error can be bigger, and advantage is technically easy to realize, with low cost; Easy and simple to handle, be convenient to patient oneself and detect, this is just for tonometer comes into the technological approaches that family have found a practicable.
The present invention is the bounce pressure indirectly testing intraocular pressure by testing eyeball, but its intelligentized characteristic ensures its method of having the ability by updating date processing to improve the accuracy of tonometry endlessly.
The technical solution adopted in the present invention is: the similar anti-goggles of profile of this Wearable tonometer, as wearing spectacles, can be fixed on tonometer before patient's eye.The movement of testee's health and head can not affect test result, does not therefore have requirement to the posture position of testee.
This Wearable tonometer comprises the pedestal that can be held on by steady forehead or eye socket above the human body bridge of the nose, and described pedestal left and right sides connects respectively by human body eye socket around to the arc flap after ear, and two pieces of described flaps are connected by link at described pedestal rear;
In two pieces of described flaps and human eye corresponding position, be provided with can in length and breadth two-ways regulation distance intraocular pressure probe;
Be provided with pressure transducer in described intraocular pressure probe, this pressure transducer is electrically connected in the microprocessor in described pedestal; The outfan of described microprocessor is electrically connected the display unit and data output interface be located on described pedestal;
Described intraocular pressure probe (4a, 4b) is made up of two pitch circle cylinders with the contact site of eyelid, and a pitch circle cylinder has concentric threads, makes Concentric rotation scalable fore-and-aft distance; Another pitch circle cylinder makes eccentric rotary, scalable lateral separation; Rotate the described cylinder on two described intraocular pressure probes respectively, the vertical and horizontal distance namely between adjustable probe and eyeball, to adapt to the user of different shape of face and different interpupillary distance.
Described Wearable tonometer in use, user can be popped one's head in by intraocular pressure described in longitudinal direction, lateral adjustments voluntarily, make it to contact eyelid, after contact, probe pressing eyeball 1-2 second is advanced again with the constant depth of 3mm, the bounce pressure of eyeball to be popped one's head in the pressure transducer passed in probe by described intraocular pressure, is then responsible for data acquisition and procession by microprocessor.
As preferably, the described link connecting described flap at described pedestal rear is elastic cord or velcro, so that wear.
As preferably, described display unit is LCDs or LED display.
The microprocessor of described Wearable tonometer the eyeball pressure data collected to be tabled look-up with normal pressure tables of data (being built in data processor) except abnormal data after filtration compare, correction value (eyelid thickness, corneal thickness, ocular rigidity etc.) is revised, maximizing and minima, the data handling procedure of to average etc., obtain intraocular pressure and intraocular pressure microseismic data.
As preferably, the intraocular pressure data obtained show current intraocular pressure value except exporting to display unit, will be retained in bin, as historical data simultaneously.Bin can retain and be no less than 1000 groups of data.
The intraocular pressure of people is that pulsation rises and falls, and its cycle that rises and falls is consistent with heart rate.Conventional intraocular pressure refers to average intraocular pressure.
As preferably, described pedestal is provided with the button for controlling related data display.As preferably, the intraocular pressure value of display can be average intraocular pressure value, also can be the intraocular pressure value of pulsation, be determined by selection key.
As preferably, described intraocular pressure probe side is also provided with a fairlead, and described intraocular pressure probe can be vertically moved by pressing in described fairlead.Described intraocular pressure probe has the limit according to pressing depth in described fairlead, is provided with position limiting structure (1-5mm can set) in intraocular pressure probe, prevents intraocular pressure probe to hinder eyes by pressing through dark squeezing.Be provided with elastic component between described intraocular pressure probe and fairlead, thus, after unclamping pressing finger, intraocular pressure probe can rebound reset.
As preferably, described pressure transducer has mould electricity outfan, and connects the A/D converter of described microprocessor by this mould electricity outfan, and the operating frequency of described A/D converter is about 128Hz.
As preferably, described pedestal is also provided with the interface for connecting peripheral hardware.
Another object of the present invention is to provide a kind of Wearable tonometer to measure the method for intraocular pressure, and described method mainly comprises the following steps:
Step one, user wears described Wearable tonometer;
Step 2, user eye closing forward sight, regulates the two-way range in length and breadth between described intraocular pressure probe and eyeball, described intraocular pressure is popped one's head in and contacts with the eyelid of user, and this state can be set as that intraocular pressure probe starts the original state pressed;
Step 3, described intraocular pressure probe advances pressing eyeball 1-2 second with the fixing 3mm degree of depth, the bounce pressure of described pressure sensor senses eyeball;
Step 4, described display unit shows described intraocular pressure data.
As preferably, described step 4 is that described microprocessor processes described bounce pressure data, and processing method comprises: abnormal data filters, table look-up with normal pressure tables of data and compare, correction value correction, maximizing, minimize, average; Result will as intraocular pressure and intraocular pressure microseismic data, for display with store; Storage is no less than 1000 groups of data by described microprocessor; Described display unit display process result.
As preferably, the pedestal of described Wearable tonometer is provided with the button for control data display, described step 4 is by touching by described button, described display unit can show or show simultaneously the intraocular pressure data of intraocular pressure data, the in the past historical record of current right and left eyes respectively, and intraocular pressure data comprise current average intraocular pressure; Most Bulbi hypertonia, the minimum intraocular pressure of current pulsation; The intraocular pressure of certain period of period of history and intraocular pressure fluctuation range; Historical high intraocular pressure.Beneficial effect of the present invention is: the household type electronic ophthalmotonometer that first item can be provided inexpensive, easy-to-use, safe for market, meet the demand that glaucoma patient, ocular hypertension and general population monitor for daily intraocular pressure, the work be highly profitable can be done to the early prevention of blinding oculopathy, early diagnosis and therapy for the whole society
Accompanying drawing explanation
Fig. 1 is the front perspective view of this Wearable tonometer embodiment.
Fig. 2 is the rear perspective figure of Fig. 1 embodiment.
Fig. 3 is in Fig. 1 embodiment, when intraocular pressure probe is mobile to eyelid pressing, and the position view of intraocular pressure probe and regulating sleeve.
Fig. 4 is in Fig. 1 embodiment, after intraocular pressure probe is mobile to eyelid pressing, and the position view of intraocular pressure probe and regulating sleeve.
Fig. 5 is in Fig. 1 embodiment, the intraocular pressure probe contact cylinder of front end and intraocular pressure pop one's head between a kind of position view.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described:
In the embodiment shown in Fig. 1, Fig. 2, this Wearable tonometer comprises and is held on pedestal 1 above the human body bridge of the nose by bridge of the nose recess 13, described pedestal 1 left and right sides connects respectively by human body eye socket around to arc left and right flap 2a, the 2b after ear, and two pieces of described flap 2a, 2b are connected by elastic cord 3 at described pedestal 1 rear;
At left and right flap 2a, 2b and human eye corresponding position, be respectively equipped with left and right fairlead 24a, 24b, at described left and right fairlead 24a, 24b is inner, be provided with left and right intraocular pressure probe 4a, 4b, left and right intraocular pressure probe can vertically move in described fairlead, and, there is the fixing mobile degree of depth, namely, when pressing described intraocular pressure probe from tonometer externally to eye, there is a limit according to pressing depth, realize by stopping means, usually, can make default limit is according to pressing depth 3mm, and tunable arrangement made by described stopping means, limit adjustment according to pressing depth can be realized, under this form, make that the described limit is according to pressing depth adjustable within the scope of 1mm mono-5mm is advisable.
The matching relationship of the 4a that pops one's head in is pressed for left fairlead 24a and left eye, as shown in Figure 3, Figure 4, in figure 3, left eye pressure probe 4a does not press to eyelid direction, left eye pressure probe 4a only exposes a bit of to eyelid direction, when left eye pressure probe 4a is after the pressing of eyelid direction, as shown in Figure 4, left eye pressure probe 4a exposes longer one section to eyelid direction; In FIG, show the view in tonometer front, wherein, left eye pressure probe 4a is in non-pressed state, and tension of oculus dexter probe 4b is in pressed state.
Described left and right intraocular pressure probe 4a, 4b and be provided with spring member structure between fairlead 24a, 24b, thus, after unclamping pressing finger, intraocular pressure probe can rebound Flexible Reset component.Described spring member structure can be made up of compression spring, and structure itself belongs to conventional structure, repeats no more herein.
Be provided with pressure transducer in described left and right intraocular pressure probe 4a, 4b, this pressure transducer is electrically connected the microprocessor be located in described pedestal 1; The outfan of described microprocessor is electrically connected the display unit 12 be located on described pedestal 1, and this display unit can be LCDs or LED display; Described pressure transducer has mould electricity outfan, and the A/D converter of described microprocessor is connected by this mould electricity outfan, the operating frequency of described A/D converter is about 128Hz, if pressed for 1 second, then can gather about 128 data, because intraocular pressure pulsation is consistent with heart rate, therefore in most cases 1 second just can gather the intraocular pressure microseismic data of a complete cycle.Microprocessor is according to most Bulbi hypertonia, minimum intraocular pressure and the average intraocular pressure of pulsation period that can obtain one-shot measurement after these date processing; Date processing will consider several modifying factors: the difference etc. of intraocular pressure the probe just initial value of contact eyelid, individual patients eyeball bounce pressure and intraocular pressure, modifying factor carries out programming by microprocessor and arranges, conveniently, can make microprocessor by RS232 serial ports with the external world is connected so that increase, revise correction value.After one-shot measurement, liquid crystal display will show average intraocular pressure, also can be selected the highest and minimum intraocular pressure of display pulsation period by selection key.
In the present embodiment, described left and right intraocular pressure probe is provided with one with the contact site of eyelid and contacts cylinder, for left eye pressure probe 4a, as shown in Figure 3-Figure 5, left contact cylinder 41a and left eye press the main body of the 4a that pops one's head in by eccentric shaft pivot joint, rotate left contact cylinder 41a, and right contact cylinder (not shown), namely the lateral separation between scalable tonometer contact point, to adapt to the user of different interpupillary distance; As shown in Figure 5, be left contact cylinder 41a rotate after and left eye press a kind of position view of popping one's head between 4a.
Described Wearable tonometer in use, user can regulate described left and right intraocular pressure probe 4a, 4b voluntarily, make it to contact eyelid, after contact, then advance probe pressing eyeball 1-2 second with certain degree of depth, the bounce pressure of eyeball is passed to the pressure transducer in probe by described intraocular pressure probe 4a, 4b, then, microprocessor is analyzed the eyeball pressure data collected, and obtains intraocular pressure and intraocular pressure microseismic data, and exports to display unit 12.The similar anti-goggles of profile of this Wearable tonometer, can, as wearing spectacles, be fixed on tonometer before patient's eye, other operator need not hold tonometer, so that patient can self-fulfillment test; Also assures that simultaneously and can keep relatively-stationary initial position between tonometer probe and testee's eyes, the movement of testee's health and head can not affect test result, does not therefore have requirement to the posture position of testee; And this tonometer only contacts with patient's eyelid, easy to use and safety.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a Wearable tonometer, it is characterized in that: comprise the pedestal (1) that can be held on by steady forehead or eye socket above the human body bridge of the nose, described pedestal (1) left and right sides connects respectively by human body eye socket around to the arc flap (2a, 2b) after ear, and two pieces of described flaps (2a, 2b) are connected by link at described pedestal (1) rear;
In two pieces of described flaps (2a, 2b) and human eye corresponding position, being provided with can intraocular pressure probe (4a, 4b) of two-ways regulation distance in length and breadth;
Be provided with pressure transducer in described intraocular pressure probe, this pressure transducer is electrically connected the microprocessor be located in described pedestal (1); The outfan of described microprocessor is electrically connected the display unit (12) and data output interface be located on described pedestal (1);
Described intraocular pressure probe (4a, 4b) is made up of two pitch circle cylinders with the contact site of eyelid, and a pitch circle cylinder has concentric threads, makes Concentric rotation scalable fore-and-aft distance; Another pitch circle cylinder makes eccentric rotary, scalable lateral separation.
2. Wearable tonometer according to claim 1, is characterized in that: the described link connecting described flap (2a, 2b) at described pedestal (1) rear is elastic cord or velcro.
3. Wearable tonometer according to claim 1, is characterized in that: described display unit (12) is LCDs or LED display.
4. the Wearable tonometer according to claim 1 or 3, is characterized in that: described pedestal (1) is also provided with the button (11) for controlling related data display.
5. Wearable tonometer according to claim 1, it is characterized in that: described intraocular pressure probe (4a, 4b) side is also provided with a fairlead (24a, 24b), and described intraocular pressure probe (4a, 4b) can be vertically moved by pressing in described fairlead (24a, 24b).
6. Wearable tonometer according to claim 5, is characterized in that: described intraocular pressure probe (4a, 4b) has the limit according to pressing depth in described fairlead (24a, 24b).
7. the Wearable tonometer according to claim 5 or 6, is characterized in that: be provided with elastic component between described intraocular pressure probe (4a, 4b) and fairlead (24a, 24b).
8. a using method for Wearable tonometer according to claim 1, described method mainly comprises the following steps:
Step one, user wears described Wearable tonometer;
Step 2, user eye closing forward sight, regulates the two-way range in length and breadth between described intraocular pressure probe (4a, 4b) and eyeball, described intraocular pressure is popped one's head in and contacts with the eyelid of user, and this state can be set as that intraocular pressure probe starts the original state pressed;
Step 3, described intraocular pressure probe (4a, 4b) advances pressing eyeball 1-2 second with the fixing 3mm degree of depth, the bounce pressure of described pressure sensor senses eyeball;
Step 4, described display unit (12) display intraocular pressure data.
9. the using method of Wearable tonometer according to claim 8, described step 4 is that described microprocessor processes described bounce pressure data, and processing method comprises: abnormal data filters, to table look-up with normal pressure tables of data and compare, correction value correction, maximizing, minimize, average; Result will as intraocular pressure and intraocular pressure microseismic data, for display with store; Storage is no less than 1000 groups of data by described microprocessor; Described display unit display process result.
10. the using method of Wearable tonometer according to claim 9, the pedestal (1) of described Wearable tonometer is provided with the button (11) for control data display, described step 4 is by touching by described button (11), described display unit (12) can show or show simultaneously the intraocular pressure data of intraocular pressure data, the in the past historical record of current right and left eyes respectively, wherein, the intraocular pressure data of described current right and left eyes comprise current average intraocular pressure, most Bulbi hypertonia, the minimum intraocular pressure of current pulsation; The intraocular pressure data of described historical record in the past comprise intraocular pressure and the intraocular pressure fluctuation range of certain period of period of history, historical high intraocular pressure.
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| CN201210562190.7A CN103181750B (en) | 2012-12-21 | 2012-12-21 | The method of Wearable tonometer and mensuration intraocular pressure thereof |
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| CN106725298B (en) * | 2017-03-05 | 2019-04-30 | 苏州云目医疗技术有限公司 | A kind of movement mechanism, intraocular pressure measurement pressure probe and tonometer |
| CN111297320A (en) * | 2020-02-27 | 2020-06-19 | 华东师范大学 | Wearable intraocular pressure measuring instrument |
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| SU426652A1 (en) * | 1971-06-02 | 1974-05-05 | М. Бессмертный , Б. В. Харламов | SPHIGMOTONOSKOP |
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| CN100998496A (en) * | 2007-01-23 | 2007-07-18 | 天津市索维电子技术有限公司 | Intraocular tension monitoring device |
| CN101822528A (en) * | 2010-05-13 | 2010-09-08 | 华中科技大学 | Intraocular tension testing device |
| CN202654105U (en) * | 2012-05-03 | 2013-01-09 | 苏州苜蓿园电子有限公司 | Wear type ophthalmotonometer |
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2012
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU426652A1 (en) * | 1971-06-02 | 1974-05-05 | М. Бессмертный , Б. В. Харламов | SPHIGMOTONOSKOP |
| US4844078A (en) * | 1986-04-14 | 1989-07-04 | Naum Pokhis | Device for and method of determination eye pressure |
| CN100998496A (en) * | 2007-01-23 | 2007-07-18 | 天津市索维电子技术有限公司 | Intraocular tension monitoring device |
| CN101822528A (en) * | 2010-05-13 | 2010-09-08 | 华中科技大学 | Intraocular tension testing device |
| CN202654105U (en) * | 2012-05-03 | 2013-01-09 | 苏州苜蓿园电子有限公司 | Wear type ophthalmotonometer |
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Effective date of registration: 20200525 Address after: 210000 building a11, No. 3, Gutan Avenue, economic development zone, Gaochun District, Nanjing City, Jiangsu Province Co-patentee after: SUZHOU YUNMU MEDICAL TECHNOLOGY Co.,Ltd. Patentee after: Nanjing Mingrui Medical Technology Co., Ltd Address before: 215000 Jiangsu Suzhou Wujiang Economic Development Zone Patentee before: SUZHOU YUNMU MEDICAL TECHNOLOGY Co.,Ltd. |