CN2034442U - Double-guiding type hearing aid series for deaf-mute - Google Patents
Double-guiding type hearing aid series for deaf-mute Download PDFInfo
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- CN2034442U CN2034442U CN 87207775 CN87207775U CN2034442U CN 2034442 U CN2034442 U CN 2034442U CN 87207775 CN87207775 CN 87207775 CN 87207775 U CN87207775 U CN 87207775U CN 2034442 U CN2034442 U CN 2034442U
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Abstract
A hearing aid of the utility model is a double-guiding type hearing aid for deaf mute which is composed of an acoustic pick-up 1, an input amplifier 2, a signal handler 3, an output amplifier 4 and a double-guiding type acoustical-conduction head or a bone-conduction head 5. The utility model is characterized in that the acoustical-conduction head is made use of the itself of the electricity-caused vibration of a piezoelectric-ceramic transducing sheet and the air-vibration wave induced by the electricity-caused vibration to realize to transfer the sound to the auditory sensation area of the brain of the deaf to produce audition through the bone conduction and the air conduction simultaneously. A set of bone-conduction heads which can transferring the sound through teeth are also provided for few total deaf, consequently, the effective rate to the deaf is effectively expanded.
Description
This utility model is a kind of sonifer, is a kind of two conduction-type auditory prosthesises that external sound can be conducted by " bone conduction " and " gas conduction " two kinds of conduction patterns simultaneously simultaneously.
So-called " gas conduction " is still to utilize the air vibration ripple of sound original audition passage of people's ear to import into, bone conduction then is the responsive place of bone conduction (as: the ear bone of dashing forward that the mechanical vibration with audio signal after strengthening itself is directly acted on the head part, frontal bone, temporal bone, tooth ... Deng) thereby the vibration directly by skull causes that again ear whirlpool endolymph also vibrates the mode that produces audition.
The existing sonifer overwhelming majority is the gas conduction-type, idol has simple bone conduction formula, also there are indivedual sonifers to have two kinds of acoustic conductance heads of the gentle conduction of bone conduction, but it leads the single conduction pattern that mode is the i.e. gas conduction of non-bone conduction still still belonging to patrilineal line of descent with only one son in each generation on the structural design on the using method, yet aurally handicapped's the deaf reason that causes is varied, during as the acoustics deafness, its gas conduction will be obviously impaired, but its bone conduction is then unaffected, even more responsive more than strong side, somebody's bone conduction effect is bad, and comprehensive aurally handicapped is more arranged, can hear sound after must strengthening simultaneously by two kinds of conduction, so certain simple conduction pattern all has its limitation.
The purpose of this utility model provides two conduction-type audiometers that a kind of gas conducts and bone conduction can carry out simultaneously.
The dual conductance type sonifer that this utility model provides is that a kind of electricity with piezoelectric ceramics transducing sheet causes the dual conductance type deaf mute audiometer that mechanical vibration realize the sound conduction, by pick up external sound is received and is converted to the signal of telecommunication with audio signal, amplify through audio frequency amplifier again and promote piezoelectric ceramics transducing sheet afterwards, make it to produce electricity and cause curved mechanical vibration of opening with audio signal, and this vibration is directly acted on the responsive place of bone conduction of aurally handicapped's head, the bone of contact site is also accompanied have the vibration of audio signal, thereby sound is imported the brain auditory area by the bone conduction mode realize audition, and meanwhile by the caused air vibration ripple of the mechanical vibration of piezoelectric ceramics transducing sheet by the reverse side of piezoelectric ceramics transducing sheet and fix to draw in the air chamber that forms between its housing and import auditory meatus through passage and carry out gas conduction to sound, the dual conductance type audiometer that " the gas conduction " that so realizes and " bone conduction " conduct simultaneously.
In conjunction with the accompanying drawings this utility model is further specified below by embodiment.
Fig. 1 is a theory diagram of the present utility model.
" 1 "--pick up, " 2 "--input amplifier, " 3 "--signal processor, " 4 "--out amplifier, " 5 "--" dual conductance type acoustic conductance head " or " bone conduction head ".
" the dual conductance type acoustic conductance head " of this audiometer (being called for short the acoustic conductance head) and " bone conduction head " are designed to universal component, the independent series that forms, be convenient to select for use by concrete condition for different patients, it is that power supply partly connects with electronic circuit by patchplug socket and main frame, and can independently become and have commercial series of products, as the wireless earplug of general semiconductor, the aurally handicapped can directly sail it and receive radio, and (its input voltage is directly to listen to program in the earphone jack between 1.5～30V) to stereo sets such as recorder.Now the operation principle with this acoustic conductance head is described below:
See shown in the accompanying drawing (2):
" 6 " and " 7 " are two piezoelectric ceramic pieces (monolithics also can), its polarization and energisation mode are for requiring under signal of telecommunication effect, one of them piezoelectric ceramic piece is made stretching exercise, and another sheet is made opposite contractile motion simultaneously, strengthens a curved mechanical movement of piezoelectric ceramics transducing sheet like this." 8 " are the electrode of the coat of metal (can be silver-plated) as piezoelectric ceramic piece, middle " 9 " are thin metal matrix sheets, its size is slightly larger than piezoelectric ceramic piece, and with piezoelectric ceramic piece be bonded together in order to the supporting ceramic sheet and as another electrode to form " piezoelectric ceramics transducing sheet " (being called for short transducing sheet), also only one side be stained with piezoelectric ceramic piece, all can use, only to reach same--during the sound conversion effect, the two-sided size compared with the single face sheet can reduce relatively, the visual different structure that cuts both ways needs and selects, " 24 " are for drawing lead, transducing (or sticking) on chip is gone up to form a cavity " 22 " at a housing " 21 " that can form chamber, two conduction-type acoustic conductance heads that auditory meatus is carried out the gas conduction are gone in the air vibration waveguide in " 22 " by passage " 20 ".Passage " 20 " also can be introduced the both sides auditory meatus with sound wave by one " tee T ".20 and 20B shown in figure (5).
For the minority anacusia patient; when its gas conduction function completely loses; in the time of can't being utilized again; " two conduction " there is no need; for improving the bone conduction effect; can adopt the means of directly carrying out " bone conduction " by tooth; because the bone conduction of tooth is more direct bone conduction; the centre do not have between the skin and flesh every; the simplest way is the transducing sheet with audio-frequency information vibration to be coated as thin as a wafer protecting film gently be affixed on and can carry out sound on tooth or the root of the tooth and conducted; in order to protect the transducing sheet can be shown in figure (3): soft the sticking on of forming by " 17 " and " 14 " on the shell " 15 " of transducing sheet; lead 16 is drawn; connect partly to refute with host line, transducing sheet surface can be coated with protecting film such as silicone rubber or the epoxy resin etc. with as thin as a wafer.This figure " 14 " is depicted as a slice piezoelectric ceramic piece; " 17 " be metal substrate (but as previously mentioned, single two-sided all can), do not feel to bear very much for the patient is biting with the teeth, it is little and thin to try one's best under the prerequisite that satisfies acoustical vibration pressure.
This utility model acoustic conductance head part, for ease of patient wear, it can be installed in and have on retractility or the elastic various fixture, its structure can be varied, common headphones frame for example, on leg of spectacles or the ornamental elastic cord ... Deng, and can install 1 on one pair of fixture to several acoustic conductance heads, because the acoustic conductance head of this piezoelectric ceramics transducing chip, mainly utilize voltage to push the work forward, its current drain seldom, so in certain Power Limitation, can be suitably to carry out the multi-section position transaudient with the reinforcement audition by increasing an acoustic conductance number.The conduction of the multi-section position here is to belong to two kinds of different notions fully with " two conduction " of front, and contradiction not is commonly referred to as " acoustic conductance device " to the whole parts that the acoustic conductance head is housed on fixing device for installing mutually.
Be depicted as the embodiment of a kind of " acoustic conductance device " as figure (4).
Piezoelectric ceramics transducing sheet 19 sticks at its periphery housing " 21 " and goes up a formation chamber " 22 " with still having the binding agent of flexibility after solidifying.Connect with main frame by patchplug 25 by the lead of drawing on the transducing sheet " 24 ", by hose passages 20 the air vibration ripple in the air chamber 22 is introduced auditory meatus and carry out the gas conduction.A tubaeform shielding mouth 23; be with (as soft rubber etc.) purpose that softish sound insulating material is made be to prevent by external sound feedback to the transducing sheet and the whistle that causes; one crescent breach 27 is arranged on horn mouth 23; its objective is and allow open position; allow the transducing sheet near the basal part of the ear well; the age of a draught animal its month 27 coincide with hard of hearing auricle simultaneously gently to be pressed in (be placed on other places and carry out the nature of bone conduction without this breach) on the prominent bone of ear; a common shielding action; locate to form an annular membrane in " 26 " of " shielding mouth " and play decoration and protective effect; with two dual conductance type acoustic conductance heads; by active joint E be contained on the installing rack 28 form one pair place having behind the ear two " dual conductance type acoustic conductance heads " " acoustic conductance device accompanying drawing (5); figure (6) be another kind of acoustic conductance head and acoustic conductance device embodiment: figure (5) be the acoustic conductance head; figure (6) is the acoustic conductance device; what scheme (5) 19 is piezoelectric ceramics transducing sheet (single or double sheet); be bonded on the housing 21 at the K place; characteristics are that shell and acoustic shielding partly are integrated and make by the soft material (as rubber) that insulates against sound; its gas conduction pathway; form the ears passage by tee T 20B through soft airway 20; figure (6) is for to be assemblied in a kind of acoustic conductance device example of being convenient to be worn over forehead on the installing rack 42 with the acoustic conductance head, and 19 size can be slightly larger to strengthen vibration.
This utility model has been given full play to the characteristics of piezoelectric ceramics transducing sheet and the adaptability of running voltage; Can select different structure types according to different patients' concrete condition, and can refute and receive any output voltage that can mate with it on the audio-frequency power amplifier between 1.5～30V, carry out conversion work effectively, in this enforcement specialized designs multiple sonifer amplifying circuit, differ from one another, be suitable for respectively different working powers and use occasion at present this system form, comprise light, in, the series of products used of the portable machine that uses of severe deafness patient individual and group instruction.
Below be the embodiment of its electronic circuit part:
Example 1: a kind of line design embodiment of the portable personal " dual conductance type deaf mute audiometer " with 3V power supply (two joint No. 5 batteries) is provided, is illustrated in figure 7 as its electrical schematic diagram.Table 1 is its main components and parts detail list.
Continuous table 1
The circuit structure explanation of accompanying drawing (7) electrical schematic diagram:
Adopt Electret condenser microphone to make pick up (MIC), R1 is its current limliting sampling resistor, and through C1, R2, C2 are incorporated into amplifier and amplify, and connects in order directly to refute with other stereo set such as radio recorder, between microphone and R1, is provided with Line.
Amplifier is by the third stage amplifier that four transistors constitute, and is used for the small-signal that microphone produces is amplified, and this grade amplifier has the higher voltage gain, has added darker alternating current-direct current, negative feedback simultaneously, in order to stable operating point with improve tonequality.Constitute intermediate amplifier by T3, volume potentiometer (W1) makes volume control circuit obtain simplifying directly as the collector load resistor of T3.When the T3 base stage inserts tone control K switch 2 and connects C7 is the bass shelves, but filtering part high-frequency noise is used for adapting to the needs of different situations.
Final amplifier T4 constitutes voltage amplifier, be used for producing the enough voltage of promotion piezoelectric ceramic transducer sheet work (corresponding to the audiometer of 3V and 15V different electrical power voltage,) this grade be designed to two kinds of different circuit formulas: the final amplifier of the audiometer of 15V power supply is the box-like resistance output of a RC base amplifier, and the final amplifier of 3V power supply audiometer is designed to the autotransformer output circuit; Make it can under the 3V supply voltage, produce higher output voltage.
By T5, W2, D, C11, the alc circuit that R15 constitutes is used for suppressing the harmful effect of instantaneous noise, and its principle is: the audio voltage of T4 output is sampled by the W2 dividing potential drop, behind diode D and capacitor C11 rectifying and wave-filtering, give him by R15 and produce negative feedback in input stage, when output voltage increased to certain intensity, the voltage behind D1, the C11 rectifying and wave-filtering increases made the T5 conducting, the T5 collection, dynamic electric resistor between the emitter-base bandgap grading descends, and input signal shunting decay has suppressed the further increase of input and output voltage; Thereby guaranteed the stable of output voltage.
The output patchhole CK2 of output voltage is connected on piezoelectric ceramics transducing sheet " 29 ", " 30 ", " 31 "; The transducing sheet has multiple different size and version, thereby can be in different ways patient's different parts be carried out the gas conduction of sound and the final conversion that bone conduction is finished sound-electricity-sound." 32 " are for connecting plug.
Example 2: providing a kind of is power supply with the 15V integrated battery, the embodiment of " dual conductance type deaf mute audiometer ".
Its electrical schematic diagram sees shown in the accompanying drawing (8) that its line construction explanation is identical with above-mentioned 3U power supply.
Its main components and parts detail list sees Table 2
The components and parts table 2 of 15V power supply
Continuous table 2
The connection of dual conductance type deaf mute audiometer each several part function and complete machine is for example shown in (seeing accompanying drawing 9).
" 33 "--audiometer electronic circuit part (main frame), " 34 "--circuit input can be directly and sound sources such as radio, recorder refute and connect, " 35 "--microphone input, " 36 "--variable ALC automatic electric-level control, " 37 "--height sound control system switch, " 38 "--volume by-pass cock, " 39 "--output socket (connecing the acoustic conductance head), " 41 "--acoustic conductance device, " 40 "--acoustic conductance device plug.
ALC: the pulse signals strong noise suitably suppresses, make output volume basicly stable, regulate by adjustment hole in covering, the ALC effect is strengthened clockwise, the ALC effect weakens counterclockwise, then ALC is inoperative to the end, and acoustic conductance device plug is inserted audiometer output plughole CK2 i.e. " 39 ", and rotation volume potentiometer switch knob to suitable volume gets final product.
With this portable machine, the group instruction by keyset and external 220V power supply with enlarger link the teaching machine.
Claims (7)
1, a kind of dual conductance type deaf mute audiometer, have power supply, pick up, amplifier, signal processor, dual conductance type acoustic conductance head, it is characterized in that said dual conductance type acoustic conductance head is to utilize piezoelectric ceramics transducing sheet audio electrical signal to be changed into the dual conductance type acoustic conductance head of the mechanical vibration with audio-frequency information.
2,, it is characterized in that said dual conductance type deaf mute audiometer also has to utilize piezoelectric ceramics transducing sheet audio electrical signal to be changed into bone conduction head with audio-frequency information mechanical vibration according to the said dual conductance type deaf mute of claim 1 audiometer.
3,, it is characterized in that said dual conductance type deaf mute audiometer has one or more dual conductance type acoustic conductance heads according to claim 1 or 2 said dual conductance type deaf mute audiometers.
4, according to claim 1 or 2 said dual conductance type deaf mute audiometers, the gas conduction pathway that it is characterized in that said dual conductance type acoustic conductance head is directly by drawing in piezoelectric ceramics transducing sheet and the formed chamber of its stationary housing.
5,, it is characterized in that said bone conduction head is to utilize piezoelectric ceramics transducing sheet directly to carry out the patrilineal line of descent with only one son in each generation conduction bone conduction head of bone conduction according to claim 1 or 2 said dual conductance type deaf mute audiometers.
6, according to claim 1 or 2 said dual conductance type deaf mute audiometers, it is characterized in that the outer surface of said piezoelectric ceramics transducing sheet has the protectiveness coat.
7, according to claim 1 or 2, said dual conductance type deaf mute audiometer, it is characterized in that said dual conductance type acoustic conductance head be installed in have flexible or elastic fixing device on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87207775 CN2034442U (en) | 1987-05-13 | 1987-05-13 | Double-guiding type hearing aid series for deaf-mute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87207775 CN2034442U (en) | 1987-05-13 | 1987-05-13 | Double-guiding type hearing aid series for deaf-mute |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2034442U true CN2034442U (en) | 1989-03-22 |
Family
ID=4823166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87207775 Expired - Lifetime CN2034442U (en) | 1987-05-13 | 1987-05-13 | Double-guiding type hearing aid series for deaf-mute |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2034442U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101703436B (en) * | 2009-11-20 | 2011-08-10 | 陕西科技大学 | Multichannel array type skin audiophone |
| CN101422051B (en) * | 2006-01-02 | 2012-07-04 | 奥迪康有限公司 | Hearing aid system |
| CN101154375B (en) * | 2006-09-25 | 2012-07-25 | 蔡本伟 | Kara OK form audio amending and processing system |
| CN1985543B (en) * | 2004-07-09 | 2012-09-26 | 美商楼氏电子有限公司 | Apparatus for suppressing radio frequency interference in a microphone assembly with preamplifier |
| CN103284682A (en) * | 2013-05-30 | 2013-09-11 | 南京航空航天大学 | Instrument for external auditory canal observation and earwax cleaning |
| CN103384357A (en) * | 2008-09-26 | 2013-11-06 | 奥迪康有限公司 | Hearing-aid and wireless antenna |
| CN104460955A (en) * | 2013-09-16 | 2015-03-25 | 联想(北京)有限公司 | Information processing method and wearable electronic equipment |
| CN104936087A (en) * | 2015-06-30 | 2015-09-23 | 孟省德 | Hydrophone |
| CN104980861A (en) * | 2014-04-01 | 2015-10-14 | 天津市助听器厂 | Maximum volume output hearing aid |
| CN110278504A (en) * | 2019-05-09 | 2019-09-24 | 朱利 | A kind of hidden bluetooth equipment being put into listening in mouth |
| CN111182864A (en) * | 2017-09-13 | 2020-05-19 | 新加坡国立大学 | Method and apparatus for incision and ventilation tube insertion |
-
1987
- 1987-05-13 CN CN 87207775 patent/CN2034442U/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1985543B (en) * | 2004-07-09 | 2012-09-26 | 美商楼氏电子有限公司 | Apparatus for suppressing radio frequency interference in a microphone assembly with preamplifier |
| CN101422051B (en) * | 2006-01-02 | 2012-07-04 | 奥迪康有限公司 | Hearing aid system |
| CN101154375B (en) * | 2006-09-25 | 2012-07-25 | 蔡本伟 | Kara OK form audio amending and processing system |
| CN103384357A (en) * | 2008-09-26 | 2013-11-06 | 奥迪康有限公司 | Hearing-aid and wireless antenna |
| CN101703436B (en) * | 2009-11-20 | 2011-08-10 | 陕西科技大学 | Multichannel array type skin audiophone |
| CN103284682A (en) * | 2013-05-30 | 2013-09-11 | 南京航空航天大学 | Instrument for external auditory canal observation and earwax cleaning |
| CN104460955A (en) * | 2013-09-16 | 2015-03-25 | 联想(北京)有限公司 | Information processing method and wearable electronic equipment |
| CN104460955B (en) * | 2013-09-16 | 2018-08-10 | 联想(北京)有限公司 | A kind of information processing method and wearable electronic equipment |
| CN104980861A (en) * | 2014-04-01 | 2015-10-14 | 天津市助听器厂 | Maximum volume output hearing aid |
| CN104936087A (en) * | 2015-06-30 | 2015-09-23 | 孟省德 | Hydrophone |
| CN104936087B (en) * | 2015-06-30 | 2018-08-31 | 孟省德 | hydrophone |
| CN111182864A (en) * | 2017-09-13 | 2020-05-19 | 新加坡国立大学 | Method and apparatus for incision and ventilation tube insertion |
| CN111182864B (en) * | 2017-09-13 | 2022-07-29 | 新加坡国立大学 | Method and apparatus for incision and insertion of ventilation tube |
| US11504279B2 (en) | 2017-09-13 | 2022-11-22 | National University Of Singapore | Method and devices for incision and insertion of a ventilation tube |
| CN110278504A (en) * | 2019-05-09 | 2019-09-24 | 朱利 | A kind of hidden bluetooth equipment being put into listening in mouth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |