CN101766474A - Auditory-tube-function detecting device and detecting method thereof - Google Patents
Auditory-tube-function detecting device and detecting method thereof Download PDFInfo
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- CN101766474A CN101766474A CN200910000123A CN200910000123A CN101766474A CN 101766474 A CN101766474 A CN 101766474A CN 200910000123 A CN200910000123 A CN 200910000123A CN 200910000123 A CN200910000123 A CN 200910000123A CN 101766474 A CN101766474 A CN 101766474A
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Abstract
The invention discloses an auditory-tube-function detecting device and a detecting method thereof, which belongs to technical field of measuring instruments for diagnosis of the various organs, comprising an air pump, a flowmeter and a flow transmitter which is electrically connected with the flowmeter, wherein, the air pump is connected with the flowmeter through a duct, the duct is provided with an air valve, a pressure-reducing valve and a pressure gauge, the tail end of the duct is connected with an ear probe which is electrically connected with a data processing system, the data processing system is electrically connected with a nose probe and is electrically connected with the flow meter through the flow transmitter, the inside of the ear probe is provided with a sound receiver and a pressure sensor, the inside of the nose probe is provided with a sound generator; the invention is integrated with a plurality of detecting methods, can simultaneously and respectively conduct sound detection and pressure detection for the auditory tube function, provides more accurate data for direct, rapid, and comprehensive assessment of the auditory tube function, and the invention becomes conventional means of detection for clinic.
Description
Technical field
The technology of the present invention field belongs to the gauge of each several part organ diagnosis aspect, is specifically related to a kind of auditory-tube-function detecting device, also relates to the assay method of eustachian tube function in addition.
Background technology
The detection method of eustachian tube function includes audiometry, impedance, sound detection, air pressure balance test method(s), pressurization response laboratory method etc.
Sound detection is relatively to conform with physiological detection method at present, can measure pharyngotympanic tube and initiatively open function, the patulous eustachian tube time when swallowing, determines that pharyngotympanic tube is unusual, objective record palatal myoclonus objective tinnitus etc.This method is the reliable method of record patulous eustachian tube, normal person's positive rate 74%-88.2%, the Japanese improves sound source side and improved positive rate behind nasopharynx part, and states such as U.S., day, Finland still are in laboratory and the clinical principium application section of connecing at present, do not form commodity and routine clinical inspection as yet.The air pressure balance test, the pressurization response test equals states such as U.S., day and still is in laboratory and clinical research stage.
It is that the department of otorhinolaryngology field has problem to be solved that eustachian tube function detects always, though acoustic impedance audiometry can carry out certain assessment to eustachian tube function, is indirect deduction basically.Sounding, air pressure balance test are the important method that domestic and international otology colleague generally acknowledges, both are combined into multi-functional auditory-tube-function detecting instrument, can be synchronously or do high frequency acoustic pressure mensuration, the blance test of blowing-bleed, pressurization response test respectively, integrate various inspection methods, eustachian tube function be can comprehensively assess exactly, further investigation and exploitation are worth.Do not form the unit commodity at present both at home and abroad as yet, if this instrument development and succeeding in developing, and promote the use of, good social and economic benefit will be obtained.
Summary of the invention
The technical problem to be solved in the present invention is: in order to overcome the defective of above-mentioned background technology, soniscope and air pressure analyzer are assembled into a unit, integrate multiple detection method, can reach synchronously and carry out eustachian tube function sounding and air pressure mensuration respectively, for direct, quick, comprehensive assessment eustachian tube function provide more accurate data.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of auditory-tube-function detecting device, comprise that air pump, flow take into account the flow transmitter that is electrically connected with effusion meter, be connected by conduit between air pump and the effusion meter, conduit is provided with air valve, air relief valve and Pressure gauge, catheter tip is connected with the ear probe, the ear probe is electrically connected with data handling system, data handling system is electrically connected with the nose probe and is electrically connected effusion meter by flow transmitter, be provided with acoustic receiver and pressure transducer in the ear probe, in the nose probe sound generator be housed.
More excellent, described data handling system includes the multi channel signals disposable plates of be electrically connected lug probe, nose probe and effusion meter, described multi channel signals disposable plates is electrically connected signals collecting single-chip microcomputer and data handling machine successively, described data handling machine is electrically connected excitation signal generator, and described excitation signal generator and multi channel signals disposable plates all are electrically connected the nose probe.
More excellent, described acoustic receiver is an Electret condenser microphone, and described pressure transducer is a differential pressure pick-up, and described sound generator is a hearing aid earphone.
More excellent, described ear probe comprises left ear probe and auris dextra probe, also is packaged with signal prime treatment circuit in the ear probe, described signal prime treatment circuit comprises selecive level meter and preamplifier.
More excellent, described ear probe also includes earplug, and earplug front opening and be connected with sealed air cushion is provided with Electret condenser microphone and conduit in the earplug, and described conduit is communicated with effusion meter and differential pressure pick-up.
More excellent, but the minipump that described air pump is bled for gas injection, described flow is counted thermal flowmeter.
And described data handling machine comprises oscillograph and monitor and is electrically connected with mechanical pick-up device.
And the assay method of this determinator:
A, the ear of placement force pick off and acoustic receiver probe is inserted external auditory meatus, reach the purpose of sealing;
B, the nose probe that will place sound generator insert nasopharynx part, and sound generator is aimed at the pharyngeal opening of pharyngotympanic tube;
C, mechanical pick-up device is put in throat's thyroid cartilage before use so that the swallowing act larynx is done mark when moving up and down;
D, open the air pump of can gas injection bleeding, by regulating air valve and air relief valve, realize the flow direction change of gas in the conduit and obtain required gas flow, the function of each several part in the turn-on data processing system realizes collection, record, storage and the printing of data simultaneously;
A, analysis, judgement eustachian tube function.
Beneficial effect of the present invention is: the present invention comprises that mainly acoustic pressure is measured and air pressure is measured the two large divisions, can carry out sounding to pharyngotympanic tube, the air pressure balance test, the pressurization response test, the inspection of the inspection of negative pressure locking states and pharyngotympanic tube-multiple projects such as chamber aerodynamics figure is with direct, comprehensive assessment eustachian tube function.The present invention integrates the advantage of multiple detection method, for auditory-tube-function detecting provides accurate more data fast, can promote further developing of domestic eustachian tube function research, makes it to become clinical conventional sense means.
Description of drawings
Fig. 1 is a system physical overall structure sketch map of the present invention;
Fig. 2 is a principle of the invention block diagram.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1 and Figure 2, the invention discloses a kind of multi-functional auditory-tube-function detecting instrument.Comprise air pump, the effusion meter that connects air pump by conduit, effusion meter is electrically connected with flow transmitter, effusion meter adopts thermal flowmeter, each flowed fluctuation constantly will be reflected in real time effectively, this flow must be by will just showing behind the sensor electrical signal processing, and comprise data handling system, data handling system comprises the multi channel signals disposable plates that is electrically connected effusion meter, described multi channel signals disposable plates is electrically connected signals collecting single-chip microcomputer and data handling machine successively, described data handling machine is electrically connected excitation signal generator, and described excitation signal generator and multi channel signals disposable plates all are electrically connected the nose probe.
Wherein, the detailed functions of data handling system each several part: the deal with data that is used for that comprises oscillograph and monitor, show air pressure, acoustic pressure, flow curve, data handling machine with functions such as detecting data, storage return difference, wherein oscillograph is electrically connected mechanical pick-up device, before mechanical pick-up device is put in throat's thyroid cartilage,, the swallowing act larynx uses so that doing mark when moving up and down.Be electrically connected with the multi channel signals disposable plates that the pumping signal that pick off produced can be amplified, handled with effusion meter, this multi channel signals disposable plates can be carried out magnitude demodulator to the feedback signal of left and right sides sound and sound stimulation and be handled signal frequency range 5-9kHz.Be electrically connected the signals collecting single-chip microcomputer of multi channel signals disposable plates and data handling machine, the signals collecting single-chip microcomputer is responsible for the analog-signal transitions from each passage of multi channel signals disposable plates is become digital signal, and send computer to, and can also be used to producing necessary alarm by serial port.Be connected with excitation signal generator with data handling machine, excitation signal generator is used for producing the pumping signal of simple usefulness 5,6,7,8,9kHz single-frequency or white noise 5-9kHz, can also select signal generator for use or with pcs signal composite signal generation software according to effect, amplify and drive.Excitation signal generator sends the 5-9kHz white noise, is easily swallowed noise jamming less than the sound of 5kHz.Selecive level meter only allows 5-9kHz scope sound to pass through with filter.Adopting white noise 5-9kHz, is because simple with 5,6,7,8, during the detection of 9kHz single-frequency, and positive rate is between 70-80%, and single frequency does time-consumingly, once can finish with white noise, saves time.Signal generator fixedly sends the white noise of 115dBSPL, crosses can cause the internal ear acoustic trauma by force.
Flow is taken into account multi channel signals disposable plates one end and is connected with the ear probe, and the ear probe comprises left ear probe and auris dextra probe, is provided with acoustic receiver and pressure transducer in the ear probe, and wherein, acoustic receiver adopts Electret condenser microphone, and pressure transducer adopts differential pressure pick-up.The ear probe also includes earplug, and earplug is except that front opening, and remainder seals, and front end connects sealed air cushion (the air cushion earplug that also available acoustic impedance meter is used), inserts external auditory meatus during use, reaches the purpose of sealing.Be provided with Electret condenser microphone and positive negative-pressure balancing test conduit in the earplug, positive negative-pressure balancing test conduit connection traffic meter and differential pressure pick-up.Also be packaged with signal prime treatment circuit in the ear probe, signal prime treatment circuit comprises selecive level meter and preamplifier.
Excitation signal generator and multi channel signals disposable plates one end are connected with the nose probe, in the nose probe sound generator is housed, this sound generator adopts hearing aid earphone, termination soft rubber conduit or Fructus Canarii albi are chewed before the hearing aid earphone, can insert nasopharynx part, opening is aimed at the pharyngeal opening of tester's pharyngotympanic tube, by hearing aid earphone the electrical signal conversion of different frequency is become acoustical signal, as the sound source of acoustic pressure test.
Between air pump, effusion meter and ear probe, be provided with and comprise Pressure gauge, air valve and air relief valve and the device that can control, regulate air pressure that is connected by conduit, but the air pump minipump of bleeding wherein for gas injection, can regulate gas injection speed and throughput according to test requirements document, thereby produce needed positive/negative pressure, change signal of telecommunication input oscillograph and monitor into through effusion meter simultaneously.
Data handling machine is used for handling measures resulting data by acoustic pressure and air pressure, show air pressure, acoustic pressure, flow curve, have functions such as the data of detection, storage return difference, the variation of external auditory meatus-tympanum internal pressure converts the signal of telecommunication to through differential pressure pick-up, input oscillograph and monitor, the gas injection (pressurization) or (decompression) aerodynamics of bleeding change with external auditory meatus-middle ear pressure and change synchronous recording.Air velocity, air pressure, acoustic pressure and swallowing act labelling show synchronously and are recorded in oscillograph and monitor.Monitor partly also can connect printer or polygraph, by number of ways the output data of surveying and result.
Basic functional principle of the present invention and total work process are: pharyngotympanic tube is the passage that connects between tympanum and the cavum nasopharyngeum, pharyngotympanic tube outer 1/3 dwindles gradually and is infundibulate, the surface is a part gauffer shape mucosa, be similar to sound-absorbing structure, the sound wave that vibrations such as tympanum, oeil de boeuf can be caused is eliminated, be in little closure state at ordinary times, can intercept physiology noise, heartbeat, breathing etc. and import tympanum into from the body sound.Patulous eustachian tube when swallowing or yawn, the interior gas of tympanum this moment communicates with the nasopharynx intracavity gas, make tympanum air pressure and atmospheric pressure balance, so its function also comprises the balance of keeping tympanum both sides air pressure, thereby make tympanum be in normal condition, and then keep the normal supercharging effect of ossicular chain.The present invention adopts the minipump of can gas injection bleeding, promptly adopt the control of air relief valve control air pressure by Pneumatic controller, adopt effusion meter control gas flow, the flow direction that realizes gas in the conduit changes, placement force pick off such as differential pressure pick-up in the ear probe, with acoustic receiver such as Electret condenser microphone, detected pressures signal and acoustical signal.Under the situation of the tympanum incision or the perforation of ear drum, the gas that is produced by air pump impels pharyngotympanic tube open under the effect of air pressure, intratympanic pressure differential is amplified by the differential pressure pick-up induction and through amplifier before and after the patulous eustachian tube, on oscillograph and monitor, show at last, can make a concrete analysis of, judge salpingian dysfunction situation by this force value.Also can in the nose probe, place sound generator such as hearing aid earphone simultaneously, the high-frequency sound signal that produces by excitation signal generator to tympanum and external auditory meatus transmission by pharyngotympanic tube from ductus nasopharyngeus by this hearing aid earphone, this high-frequency sound signal is 5～9kHz white noise, Electret condenser microphone in popping one's head in by the ear that places external auditory meatus again receives this acoustical signal and through preamplifier and selecive level meter this signal is amplified, carry out the signals collecting and the basic handling of magnitude demodulator processing and signals collecting single-chip microcomputer then by the multi channel signals disposable plates, be sent at last on the oscillograph and monitor on the data handling machine, export final display result.According to the mechanical pick-up device of working the simultaneously pairing sound pressure level of induced swallowing act each time and atmospheric pressure value, flow value etc., salpingian function status is carried out analysis-by-synthesis, judgement.
Above-described only is preferred implementation of the present invention, should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the invention design, can also make some distortion and improvement, and these all belong to protection scope of the present invention.
Claims (8)
1. auditory-tube-function detecting device, it is characterized in that: comprise that air pump, flow take into account the flow transmitter that is electrically connected with effusion meter, be connected by conduit between air pump and the effusion meter, conduit is provided with air valve, air relief valve and Pressure gauge, catheter tip is connected with the ear probe, the ear probe is electrically connected with data handling system, data handling system is electrically connected with the nose probe and is electrically connected effusion meter by flow transmitter, be provided with acoustic receiver and pressure transducer in the ear probe, in the nose probe sound generator be housed.
2. auditory-tube-function detecting device as claimed in claim 1, it is characterized in that: described data handling system includes the multi channel signals disposable plates of be electrically connected lug probe, nose probe and effusion meter, described multi channel signals disposable plates is electrically connected signals collecting single-chip microcomputer and data handling machine successively, described data handling machine is electrically connected excitation signal generator, and described excitation signal generator and multi channel signals disposable plates all are electrically connected the nose probe.
3. auditory-tube-function detecting device as claimed in claim 1 is characterized in that: described acoustic receiver is an Electret condenser microphone, and described pressure transducer is a differential pressure pick-up, and described sound generator is a hearing aid earphone.
4. auditory-tube-function detecting device as claimed in claim 1 or 2, it is characterized in that: described ear probe comprises left ear probe and auris dextra probe, also be packaged with signal prime treatment circuit in the ear probe, described signal prime treatment circuit comprises selecive level meter and preamplifier.
5. auditory-tube-function detecting device as claimed in claim 4, it is characterized in that: described ear probe also includes earplug, earplug front opening and be connected with sealed air cushion is provided with Electret condenser microphone and conduit in the earplug, described conduit is communicated with effusion meter and differential pressure pick-up.
6. auditory-tube-function detecting device as claimed in claim 1 is characterized in that: but the minipump that described air pump is bled for gas injection, and described flow is counted thermal flowmeter.
7. auditory-tube-function detecting device as claimed in claim 2 is characterized in that: described data handling machine comprises oscillograph and monitor and is electrically connected with mechanical pick-up device.
8. auditory-tube-function detecting method is characterized in that may further comprise the steps:
A, the ear of placement force pick off and acoustic receiver probe is inserted external auditory meatus, reach the purpose of sealing;
B, the nose probe that will place sound generator insert nasopharynx part, and sound generator is aimed at the pharyngeal opening of pharyngotympanic tube;
C, mechanical pick-up device is put in throat's thyroid cartilage before use so that the swallowing act larynx is done mark when moving up and down;
D, open the air pump of can gas injection bleeding, by regulating air valve and air relief valve, realize the flow direction change of gas in the conduit and obtain required gas flow, the function of each several part in the turn-on data processing system realizes collection, record, storage and the printing of data simultaneously;
E, analysis, judgement eustachian tube function.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100001234A CN101766474B (en) | 2009-01-07 | 2009-01-07 | Auditory-tube-function detecting device and detecting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100001234A CN101766474B (en) | 2009-01-07 | 2009-01-07 | Auditory-tube-function detecting device and detecting method thereof |
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| CN101766474A true CN101766474A (en) | 2010-07-07 |
| CN101766474B CN101766474B (en) | 2011-11-30 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102764129A (en) * | 2011-04-18 | 2012-11-07 | 佛山市第一人民医院 | Detector for swallowing function |
| CN105286798A (en) * | 2015-11-04 | 2016-02-03 | 深圳市福生医疗器械有限公司 | Velopharyngeal closure detection device and method |
| CN105686847A (en) * | 2016-04-07 | 2016-06-22 | 广西医科大学 | Eustachian tube sonic-detection-method digital inspection tester and measuring method thereof |
| CN110101530A (en) * | 2019-06-15 | 2019-08-09 | 吉林大学 | A kind of balance adjustment ear canal eardrum external and internal pressure device |
| CN110584609A (en) * | 2019-09-20 | 2019-12-20 | 北京卓驰科技有限公司 | System and method for monitoring eustachian tube insufflation treatment and electronic equipment |
| CN114173855A (en) * | 2019-06-10 | 2022-03-11 | 布莱顿大学 | Method and device for delivering substances to the inner ear |
| CN114699069A (en) * | 2022-01-26 | 2022-07-05 | 广西医科大学第一附属医院 | Eustachian tube openness test system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4546779A (en) * | 1983-12-12 | 1985-10-15 | University Of Pittsburgh | Method of measurement of Eustachian tube opening and associated apparatus |
| US5885242A (en) * | 1993-08-19 | 1999-03-23 | Arick; Daniel | Apparatus for equalizing the pressure in the middle ear |
| CN2289519Y (en) * | 1997-01-24 | 1998-09-02 | 傅云朝 | Pharyngotympanic canal function determination instrument |
-
2009
- 2009-01-07 CN CN2009100001234A patent/CN101766474B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102764129A (en) * | 2011-04-18 | 2012-11-07 | 佛山市第一人民医院 | Detector for swallowing function |
| CN102764129B (en) * | 2011-04-18 | 2014-12-24 | 佛山市第一人民医院 | Detector for swallowing function |
| CN105286798A (en) * | 2015-11-04 | 2016-02-03 | 深圳市福生医疗器械有限公司 | Velopharyngeal closure detection device and method |
| CN105286798B (en) * | 2015-11-04 | 2018-07-20 | 深圳市福生医疗器械有限公司 | Velopharyngeal closure detection device and detection method |
| CN105686847A (en) * | 2016-04-07 | 2016-06-22 | 广西医科大学 | Eustachian tube sonic-detection-method digital inspection tester and measuring method thereof |
| CN114173855A (en) * | 2019-06-10 | 2022-03-11 | 布莱顿大学 | Method and device for delivering substances to the inner ear |
| CN110101530A (en) * | 2019-06-15 | 2019-08-09 | 吉林大学 | A kind of balance adjustment ear canal eardrum external and internal pressure device |
| CN110584609A (en) * | 2019-09-20 | 2019-12-20 | 北京卓驰科技有限公司 | System and method for monitoring eustachian tube insufflation treatment and electronic equipment |
| CN114699069A (en) * | 2022-01-26 | 2022-07-05 | 广西医科大学第一附属医院 | Eustachian tube openness test system |
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| CN101766474B (en) | 2011-11-30 |
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