CN201076468Y - Otoacoustic detection and analysis device - Google Patents
Otoacoustic detection and analysis device Download PDFInfo
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- CN201076468Y CN201076468Y CNU2007201696805U CN200720169680U CN201076468Y CN 201076468 Y CN201076468 Y CN 201076468Y CN U2007201696805 U CNU2007201696805 U CN U2007201696805U CN 200720169680 U CN200720169680 U CN 200720169680U CN 201076468 Y CN201076468 Y CN 201076468Y
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Abstract
The utility model discloses an otoacoustic detecting and analyzing device which comprises a central control unit, a sound production unit, a sound receiving unit, a signal amplification unit, an A/D converting unit, a power amplifier unit, a D/A converting unit, a display unit, a key board operation unit, a computer host machine unit and an USB interface unit, wherein the sound production unit is connected with the central control unit through the power amplifier unit and the D/A converting unit in turn, the sound receiving unit is connected with the central control unit through the signal amplification unit and the A/D converting unit in turn, the central control unit is directly connected with the computer host machine unit through the USB interface unit, peripheral storing, displaying, and operating units are omitted, resources as high speed operations and the like do not need, the equipment becomes smaller, reliable and power-saving, simultaneously analytical calculations with more accuracy and more items can be obtained through utilizing the strong operating, storing and managing resources of a computer, personal information and otoacoustic signals in each detection for the detected people can be stored, analyzed, and tracked for a long time. The utility model is very suitable for hospital clinical uses.
Description
Technical field
This utility model relates to a kind of detection and analytical equipment of otoacoustic signal, particularly a kind of device that neonatal otoacoustic signal is detected and analyzes.
Background technology
The examination of newborn infant diseases is to improve the overall quality of newborns, and reduces one of tertiary prevention measure of birth defect.The examination of newborn infant diseases is meant neonatal period congenital to serious harm health, and hereditary is carried out special examination, and carries out early diagnosis and therapy, and purpose is to reduce the generation of birth defect, improves the overall quality of newborns.The examination of newborn infant diseases project of carrying out in China at present comprises metabolism in newborn infants disorder in screening and newborn hearing screening.
Dysaudia is common birth defect.External studies show that in the normal newborn, the incidence rate of bilateral dysaudia is at 0.1%-0.3%, and wherein, the severe to the utmost point incidence rate of severe dysaudia is about 0.1%.
Present medical knowledge and technology can't be prevented the generation of congenital hearing disorder fully, can make the infant of congenital hearing disorder accomplish deaf and mute improving the overall quality of newborns undoubtedly promotes that prenatal and postnatal care has important social reality meaning.Newborn hearing screening is a good job of benefiting the nation and the people.In fact, newborn hearing screening not only has the huge social benefit, and tangible economic benefit is also arranged.In China, the financial burden that deaf-mute child brings society all one's life is not less than 30～500,000 RMB, is mainly used in specific education and every hardship relief assistance.And find that make a definite diagnosis and the expense of intervening an infant is starkly lower than the financial burden that brings after the morbidity, the economics that shows preventive medicine is worth.
At present, though individual hospitals has the instrument that detects the neonate otoacoustic signal, but mostly be to adopt big, the baroque detecting instrument of volume, be not suitable for applying in hospital, though or be useful on adult testing hearing small-sized tester, but can not store detected person's personal information and each otoacoustic signal that detects, can not the result who detect be analyzed and long-term follow.
The utility model content
At the problem of above-mentioned existence, the purpose of this utility model is to provide a kind of otoacoustic emission detection and analytical equipment of simple in structure, easy to use and highly versatile.
For achieving the above object, otoacoustic emission detection of the present utility model and analytical equipment comprise: comprise central control unit, phonation unit, the sound receiving element, signal amplification unit, the A/D converting unit, power amplifier unit, the D/A converting unit, display unit, the keyboard operation unit, phonation unit links to each other with central control unit with the D/A converting unit by power amplifier unit successively, the sound receiving element links to each other with central control unit with the A/D converting unit by signal amplification unit successively, central control unit links to each other with usb interface unit, and then link to each other with the main frame unit by usb interface unit, display unit, the keyboard operation unit links to each other with central control unit respectively, control and corresponding display operation, in this device, also has an EEG signals receiving element with the sound receiving element is parallel, be used for detecting listening property brainstem evoked potential (ABR), device is connected to the A/D converting unit by the high common mode amplifier of low noise, and then link to each other with central control unit, the terminal test section that above-mentioned all unit constitute only is connected with usb interface unit by the outlet of central control unit, and then directly link to each other by usb interface unit with the main frame unit, they and otoacoustic emission (OAE) technical tie-up are applied to screening, check the neonate cochlea comprehensively, the acoustic nerve pathway, the functional status of brain stem, find as early as possible because unusual behind snail property that some pathological state of neonate is caused and the snail, reduce the false negative rate of audition examination, improve percent of pass.
Further, the phonation unit among the application comprises first and second phonation units, and described D/A converting unit and power amplifier unit also comprise the first and second D/A converting units respectively, reach first merit and second power amplifier unit; First and second D/A converting unit is used for launching to first and second power amplifier unit respectively the sound wave of particular characteristic, and by passing to first and second phonation units after first and second power amplifier unit amplification.
The application also comprises print unit, and this print unit links to each other with the main frame unit.
Novel detection, analysis, monitoring and the tracking that not only can be used for newborns ' hearing of this use; Be applicable to that also audition has the adult of obstacle,, carry out recording and tracking equally, help to understand the auditory rehabilitation situation in real time, and then take the corresponding treatment measure, be very suitable for hospital clinical and use the audition situation in therapeutic process.
Description of drawings
Fig. 1 is this utility model structural representation block diagram;
Fig. 2 is at the flow chart to newborns ' hearing detection and tracking process;
Fig. 3 is newborn hearing screening database function figure;
Fig. 4 is newborn hearing screening data base's a structure flow chart.
Fig. 5 is modified tone distortion otoacoustic emission (DPOAE) sequential chart;
Fig. 6 is transient evoked otoacoustic emission (TEOAE) sequential chart.
The specific embodiment
As shown in Figure 1, this utility model comprises: central control unit 1, first phonation unit 2, second phonation unit 3, sound receiving element 4, signal amplification unit 7, A/D converting unit 8, first power amplifier unit 5, second power amplifier unit 15, a D/A converting unit 6, the 2nd D/A converting unit 14, display unit 9, print unit 10, keyboard operation unit 11, main frame unit 12 and usb interface unit 13; First phonation unit 2 links to each other with central control unit 1 with a D/A converting unit 6 by first power amplifier unit 5 successively, second phonation unit 3 links to each other with central control unit 1 with the 2nd D/A converting unit 14 by second power amplifier unit 15 successively, sound receiving element 4 is successively by signal amplification unit 7, A/D converting unit 8 links to each other with central control unit 1, central control unit 1 links to each other with usb interface unit 13, and then central control unit is linked to each other with main frame unit 12 by usb interface unit, display unit 9, keyboard operation unit 11, print unit 10 links to each other with central control unit 1 respectively, carries out Keyboard Control, print and corresponding display operation.
In above-mentioned each unit, first phonation unit 2 and second phonation unit 3 are used for the sound wave of emission particular characteristic in ear; Sound receiving element 4 is used for gathering according to some cycles the echo of ear feedback; Signal amplification unit 7 is used for the signal that sound receiving element 4 is gathered is amplified; Conversion of signals after A/D converting unit 8 is used for signal amplification unit 7 amplified is a digital signal, and is transferred to central control unit 1 and handles; First and second D/ A converting unit 6,14 is used for launching respectively to first and second power amplifier unit 5,15 respectively the sound wave of particular characteristic, and by passing to first phonation unit 2 and second phonation unit 3 after first and second power amplifier unit 5,15 amplifications; Central control unit 1 links to each other with usb interface unit 13, by usb interface unit the signal of central control unit is sent to the main frame unit, thereby the data result that the otoacoustic signal that obtains is detected stores in the computer, also has an EEG signals receiving element 12 with the sound receiving element is parallel, be used for detecting listening property brainstem evoked potential (ABR), it is connected to A/D converting unit 8 by the high common mode amplifier 13 of low noise, and then link to each other with central control unit, be applied to screening with otoacoustic emission (OAE) technical tie-up, check the neonate cochlea comprehensively, the acoustic nerve pathway, the functional status of brain stem, find as early as possible because unusual behind snail property that some pathological state of neonate is caused and the snail, reduce the false negative rate of audition examination, improve percent of pass.
And on this basis to the data that detect analyze, record; The keyboard operation unit 11 that links to each other with main frame unit 12 not only is used for the various operations of test process, and be used to import detected neonatal personal information, set up measured's archives, display unit 9 is used to show otoacoustic signal figure after treatment, shows whether tested baby's ear is normal.The application can monitor, analyze and follow the tracks of the result who detects at set intervals, dopes neonatal otoacoustic emission audition situation.
The process that the audition of carrying out this equipment of use detects and analyzes is generally carried out at obstetrical ward as shown in Figure 2.Before puerpera and neonate were left hospital, the audition before all neonates are left hospital detected screening, if by test, solicit the detected person and whether require to follow the tracks of to follow up a case by regular visits to, if do not need, only need carry out acoustic acuity health-care education, strengthens health care consciousness; If the detected person wishes regularly to follow the tracks of to follow up a case by regular visits to the newborns ' hearing development, then be recorded into regular tracking and follow up a case by regular visits to archives, detected once in per 6 months, consistent tracing into 3 years old, if suspect problem is arranged, then in 3 months, carry out comprehensive audiology's diagnosis, suitably administer and further test tracking.In addition,,, then in 3, carry out comprehensive audiology's diagnosis, in June, take suitable intervening measure if do not pass through yet if neonate when leaving hospital, can then within 29 to 42, can not carry out multiple sieve by the test screening of audition once more.If passed through the test screening, then can enter normal regularly the tracking and follow up a case by regular visits to archives in March or June.Like this, can provide the quality evaluation of all newborns ' hearing situations at 6 months.
The intrasystem main frame of the application's otoacoustic emission detection and analytical equipment unit stores the newborn hearing screening data base, can carry out collection of data, clinical service, guidance and follow up a case by regular visits to, remind patients ' recovery step, evaluation work quality, reporting system, inquiry/replenish/error correction/preservations/backup, described examination data base comprises basic examination data base, follow up data storehouse and intervention data base; Basic examination data-base recording detected person's basic condition as this clinical data that advances of neonate mother situation, neonate situation, and has been listened data and the EPDML data of population; Follow up data storehouse record sieves the data base again, has listened and medical evaluation data information and continuous detecting database data etc.; In intervening the data base, rehabilitation data base, speech-language rehabilitation data base and home services data base etc. listened in record.
Otoacoustic emission detection of the present utility model and analytical equipment not only can be used for detection, analysis, monitoring and tracking to newborns ' hearing; Be applicable to that also audition has the adult of obstacle,, carry out recording and tracking equally, help to understand the auditory rehabilitation situation in real time, and then take favourable treatment measure the audition situation in therapeutic process.
When this utility model uses, judge at first whether first and second phonation unit 2,3 and sound receiving element 4 connect normal, if normally just carry out next step transient evoked otoacoustic emission or the operation of modified tone distortion otoacoustic emission, specific as follows:
1, transient evoked otoacoustic emission (TEOAE)
As shown in Figure 4, sample rate and maximal stimulus number of times are set, follow the requirement of " the non-linear corresponding coherence average (DNLR) of drawing ", by first phonation unit 2 or 3 transmission cycles of second phonation unit is that the pulse of T1 minor is click sound (stimulus signal), gather 1024 signals by sound receiving element 4, pass in computer by USB, by computer the sample of gathering is carried out the DNLR coherence average then, be FFT (power spectrumanalysis), after relevant back data reach the signal to noise ratio requirement, show by display unit 9, and be saved in the memory element 12.
2, modified tone distortion otoacoustic emission (DPOAE)
As shown in Figure 3, sample rate and maximal stimulus number of times are set, send the pure tone signal that the group cycle is T2 respectively by first phonation unit 2 and second phonation unit 3 then, frequency is respectively f1 and f2, f1, f2 will be maintained fixed ratio, gather 1024 signals by sound receiving element 4, pass in computer by USB, by computer the sample of gathering is carried out coherence average then, do fft analysis, after relevant back data have reached the signal to noise ratio requirement, show by display unit 9, and be saved in the memory element 12.
3 bring out potentiometric analysis
Sample rate and stimulation programs are set, comprise stimulus frequency, cycle, intensity and number of times, send stimulation sound by first phonation unit 2 or second phonation unit 3, receive listening property brainstem evoked potential (ABR) signal by EEG signals receiving element 12, be connected to A/D converting unit 8 by the high common mode amplifier 13 of low noise, and then link to each other with central control unit, pass in computer by usb interface unit again, after by computer the sample of gathering being gone artefact, windowing and goes interference then, provide the analytical judgment result, and print file.These information and otoacoustic emission (OAE) technical tie-up is applied to screening, check the functional status of neonate cochlea, acoustic nerve pathway, brain stem comprehensively, find as early as possible because unusual behind snail property that some pathological state of neonate is caused and the snail, reduce the false negative rate of audition examination, improve percent of pass.
Claims (4)
1. otoacoustic emission detection and analytical equipment, comprise central control unit, phonation unit, the sound receiving element, signal amplification unit, the A/D converting unit, power amplifier unit, the D/A converting unit, display unit, the keyboard operation unit, phonation unit links to each other with central control unit with the D/A converting unit by power amplifier unit successively, the sound receiving element links to each other with central control unit with the A/D converting unit by signal amplification unit successively, it is characterized in that, this device also has an EEG signals receiving element parallel with the sound receiving element, be used for detecting listening property brainstem evoked potential, it is connected to the A/D converting unit by the high common mode amplifier of low noise, and then link to each other with central control unit, the terminal test section that above-mentioned all unit constitute only is connected with usb interface unit by the outlet of central control unit, and then directly link to each other by usb interface unit with the main frame unit, display unit, the keyboard operation unit links to each other with the main frame unit respectively, controls and corresponding display operation.
2. otoacoustic emission detection according to claim 1 and analytical equipment, it is characterized in that, described phonation unit comprises first and second phonation units, and described D/A converting unit and power amplifier unit also comprise the first and second D/A converting units respectively, reach first merit and second power amplifier unit; First and second D/A converting unit is used for launching to first and second power amplifier unit respectively the sound wave of particular characteristic, and by passing to first and second phonation units after first and second power amplifier unit amplification.
3. otoacoustic emission detection according to claim 2 and analytical equipment, it is characterized in that, described otoacoustic emission detection and analytical equipment store the newborn hearing screening data base, can carry out that collection of data, clinical service, guidance are followed up a case by regular visits to, reminded patients ' recovery step, evaluation work quality, reporting system, inquiry, replenish, error correction, preservation and backup.
4. according to described otoacoustic emission detection of above-mentioned any claim and analytical equipment, it is characterized in that also comprise print unit, this print unit links to each other with the main frame unit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201696805U CN201076468Y (en) | 2007-07-11 | 2007-07-11 | Otoacoustic detection and analysis device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201696805U CN201076468Y (en) | 2007-07-11 | 2007-07-11 | Otoacoustic detection and analysis device |
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| CN201076468Y true CN201076468Y (en) | 2008-06-25 |
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| CNU2007201696805U Expired - Fee Related CN201076468Y (en) | 2007-07-11 | 2007-07-11 | Otoacoustic detection and analysis device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102144925A (en) * | 2010-01-04 | 2011-08-10 | Hmd香港有限公司 | A portable diagnostic instrument and a method for its use |
| CN101690664B (en) * | 2009-10-23 | 2012-07-25 | 清华大学 | Comprehensive detection platform for auditory indexes of auditory system transmission access |
| CN103816007A (en) * | 2013-11-22 | 2014-05-28 | 刘志勇 | Equipment and method for tinnitus treatment based on electroencephalogram frequency-domain characteristic indexation algorithm |
| CN107491653A (en) * | 2017-08-30 | 2017-12-19 | 河南爱尔康科技有限公司 | A kind of examination of newborn infant diseases and the management mode of prenatal disease examination |
| CN108209933A (en) * | 2016-12-14 | 2018-06-29 | 国际听力公司 | For the ear probe of hearing test |
| CN109381193A (en) * | 2017-08-07 | 2019-02-26 | 圣布拉斯特有限公司 | Hearing test apparatus and its operating method |
-
2007
- 2007-07-11 CN CNU2007201696805U patent/CN201076468Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101690664B (en) * | 2009-10-23 | 2012-07-25 | 清华大学 | Comprehensive detection platform for auditory indexes of auditory system transmission access |
| CN102144925A (en) * | 2010-01-04 | 2011-08-10 | Hmd香港有限公司 | A portable diagnostic instrument and a method for its use |
| CN103816007A (en) * | 2013-11-22 | 2014-05-28 | 刘志勇 | Equipment and method for tinnitus treatment based on electroencephalogram frequency-domain characteristic indexation algorithm |
| CN103816007B (en) * | 2013-11-22 | 2016-04-06 | 刘志勇 | A kind of tinnitus treatment Apparatus and method for based on brain electricity frequency domain character indexing algorithm |
| CN108209933A (en) * | 2016-12-14 | 2018-06-29 | 国际听力公司 | For the ear probe of hearing test |
| CN109381193A (en) * | 2017-08-07 | 2019-02-26 | 圣布拉斯特有限公司 | Hearing test apparatus and its operating method |
| CN107491653A (en) * | 2017-08-30 | 2017-12-19 | 河南爱尔康科技有限公司 | A kind of examination of newborn infant diseases and the management mode of prenatal disease examination |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080625 Termination date: 20150711 |
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| EXPY | Termination of patent right or utility model |