CN204445944U - Fetus-voice meter - Google Patents
Fetus-voice meter Download PDFInfo
- Publication number
- CN204445944U CN204445944U CN201520118382.8U CN201520118382U CN204445944U CN 204445944 U CN204445944 U CN 204445944U CN 201520118382 U CN201520118382 U CN 201520118382U CN 204445944 U CN204445944 U CN 204445944U
- Authority
- CN
- China
- Prior art keywords
- fetus
- housing
- voice meter
- ultrasonic
- fuselage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
This utility model relates to a kind of fetus-voice meter, comprise a fuselage, be installed in fuselage for the doppler transducer launching a hyperacoustic agitator and match with agitator, described doppler transducer comprises a ultrasonic transmitter and a ultrasonic receiver, wherein, described ultrasonic transmitter and ultrasonic receiver periphery form a cavity, are filled with deadener in described cavity.This utility model, by sound insulation by filling material in the cavity that ultrasonic transmitter and ultrasonic receiver periphery are formed, substantially increases the accuracy that fetus-voice meter reads fetal heartbeat.
Description
Technical field
This utility model relates to domestic human body physiological parameter detection field, particularly relates to a kind of fetus-voice meter.
Background technology
At present, most of domestic fetus-voice meters on the market belong to uniset.Existing uniset is generally utilize ultrasonic emitting to detect fetal heartbeat with receiving, and it comprises substantially: a fuselage, to be installed in this fuselage for launching a hyperacoustic agitator, the doppler transducer, the power amplifier module be connected with this doppler transducer that match with this agitator and the speaker indicated for providing fetal heartbeat that is connected with this power amplifier module.
Because the doppler transducer of uniset and speaker are all placed in same fuselage, if the vibrations that speaker produces fuselage are close to hyperacoustic frequency, can be mistaken as is fetal heartbeat, and is read in mistakenly by doppler transducer, causes the accuracy that heart beating is read.
Utility model content
This utility model is to provide a kind of fetus-voice meter, causes heart beating to read the not high problem of accuracy for solving vibrations that fetus-voice meter in prior art produces fuselage due to speaker.
In order to solve the problems of the technologies described above, the utility model proposes a kind of fetus-voice meter, comprise a fuselage, be installed in fuselage for the doppler transducer launching a hyperacoustic agitator and match with agitator, described doppler transducer comprises a ultrasonic transmitter and a ultrasonic receiver, wherein, described ultrasonic transmitter and ultrasonic receiver periphery form a cavity, are filled with deadener in described cavity.
Further, the second housing that described fuselage comprises the first housing and is connected with the first housing, described ultrasonic transmitter and ultrasonic receiver stretch out from described first housing to described second housing, and described cavity is positioned at this second housing.
Further, described cavity is circular.
Further, described fetus-voice meter also comprises a probe cover, and it is located at the outside of described cavity, all contacts with ultrasonic receiver with described ultrasonic transmitter, and described ultrasonic transmitter and ultrasonic receiver is fixed in described fuselage.
Further, described deadener is foam plastics.
Further, described fetus-voice meter also comprises: the power amplifier module be connected with described doppler transducer and the speaker indicated for providing fetal heartbeat that is connected with power amplifier module.
Further, an amplification filtering module is connected with between described doppler transducer and power amplifier module.
Further, a low pass filter is connected with between described power amplifier module and speaker.
Compared with prior art, fetus-voice meter of the present utility model, has following beneficial effect: by sound insulation by filling material in the cavity that formed at ultrasonic transmitter and ultrasonic receiver periphery, substantially increases the accuracy that fetus-voice meter reads fetal heartbeat.
Accompanying drawing explanation
Fig. 1 is the structural representation of fetus-voice meter of the present utility model.
Fig. 2 is the explosive view of the second housing of the fuselage of fetus-voice meter of the present utility model.
Wherein, description of reference numerals is as follows:
100, fetus-voice meter; 1, fuselage; 11, the first housing; 12, the second housing; 13, probe cover; 2, doppler transducer; 21, ultrasonic transmitter; 22, ultrasonic receiver; 3, deadener.
Detailed description of the invention
Below with reference to accompanying drawing, elaboration is further given to this utility model.
Refer to Fig. 1-2, a kind of fetus-voice meter 100 that this utility model provides comprises: a fuselage 1, to be installed in fuselage 1 for launching a hyperacoustic agitator, the doppler transducer 2, the power amplifier module be connected with doppler transducer 2 that match with agitator and the speaker indicated for providing fetal heartbeat that is connected with power amplifier module.Wherein, between doppler transducer 2 and power amplifier module, be connected with an amplification filtering module, carry out first filtering and amplification for the audio signal exported by doppler transducer 2.Power amplifier module carries out secondary amplification to the amplifying signal that amplification filtering module exports.Be connected with a low pass filter between power amplifier module and speaker, carry out secondary filtering for the audio signal exported by power amplifier module, thus reduce altofrequency and shake the interference that doppler transducer 2 is brought.
Particularly, doppler transducer 2 is for transmitting and receiving ultrasonic signal, and it comprises ultrasonic transmitter 21 and a ultrasonic receiver 22.Ultrasonic transmitter 21 carries out ultrasonic signal transmitting after receiving the ultrasound wave of agitator transmitting, and ultrasonic receiver 22 is responsible for receiving the ultrasonic signal returned.The frequency of the ultrasonic signal of transmitting and the ultrasonic signal of reception contrasts by doppler transducer 2, and to identify fetal heartbeat, and the audio signal this heart beating being converted to low frequency exports amplification filtering module to.
Fuselage 1 comprises the first housing 11 and the second housing 12, first housing 11 of being connected with the first housing 11 and the second housing 12 can be one-body molded, also can be the form such as adhesion or welding.Ultrasonic transmitter 21 and ultrasonic receiver 22 stretch out from the first housing 11 to the second housing 12, are formed with a cavity at ultrasonic transmitter 21 and the periphery of ultrasonic receiver 22.This cavity is positioned at the second housing 12, and is wherein filled with deadener 3.
In one embodiment, deadener 3 is foam plastics.Certainly, in other embodiments, deadener 3 can be also Sound-proof material or rock wool, as long as have the material of soundproof effect, this utility model is not as limit.By sound insulation by filling material 3 in cavity, intercept volume that speaker produces to the vibrations of fuselage, reduce the probability that doppler transducer 2 is imported in fuselage vibrations into, thus decrease the ultrasonic signal of the mistake that doppler transducer 2 receives, achieve and improve the object that fetus-voice meter 100 reads the accuracy of fetal heartbeat.
In one embodiment, the cavity being positioned at the second housing 12 is circular, ultrasonic transmitter from the first housing 11 to the second housing 12 that stretch out from 21 and ultrasonic receiver 22 wrap up by inner circle, and deadener 3 is filled between cylindrical and inner circle.
Further, fetus-voice meter 100 also comprises a probe cover 13, and it is located at the outside of cavity, all contacts with ultrasonic receiver 22 with ultrasonic transmitter 21, and ultrasonic transmitter 21 and ultrasonic receiver 22 is fixed in fuselage 1.
In one embodiment, the assembling process of fetus-voice meter 100 is: be first fixed in the first housing 11 by doppler transducer 2 and other structure of being connected with doppler transducer 2, wherein, the ultrasonic transmitter 21 of doppler transducer 2 stretches out the first housing 11 with ultrasonic receiver 22 part; Then in the cavity that periphery deadener 3 being filled to ultrasonic transmitter 21 and ultrasonic receiver 22 is formed; Again the second housing 12 is set in outside this cavity, and with the first housing 11 adhesion; Finally load onto probe cover 13, keep the contact of probe cover 13 and ultrasonic transmitter 21 and ultrasonic receiver 22, thus complete the assembling of fetus-voice meter 100.
Foregoing; be only preferred embodiment of the present utility model; not for limiting embodiment of the present utility model; those of ordinary skill in the art are according to central scope of the present utility model and spirit; can carry out corresponding flexible or amendment very easily, therefore protection domain of the present utility model should be as the criterion with the protection domain required by claims.
Claims (8)
1. a fetus-voice meter, comprise a fuselage, be installed in fuselage for the doppler transducer launching a hyperacoustic agitator and match with agitator, described doppler transducer comprises a ultrasonic transmitter and a ultrasonic receiver, it is characterized in that, described ultrasonic transmitter and ultrasonic receiver periphery form a cavity, are filled with deadener in described cavity.
2. fetus-voice meter as claimed in claim 1, it is characterized in that, the second housing that described fuselage comprises the first housing and is connected with the first housing, described ultrasonic transmitter and ultrasonic receiver stretch out from described first housing to described second housing, and described cavity is positioned at this second housing.
3. fetus-voice meter as claimed in claim 2, it is characterized in that, described cavity is circular.
4. fetus-voice meter as claimed in claim 3, it is characterized in that, also comprise a probe cover, it is located at the outside of described cavity, all contact with ultrasonic receiver with described ultrasonic transmitter, and described ultrasonic transmitter and ultrasonic receiver are fixed in described fuselage.
5. fetus-voice meter as claimed in claim 1, it is characterized in that, described deadener is foam plastics.
6. fetus-voice meter as claimed in claim 1, is characterized in that, also comprise: the power amplifier module be connected with described doppler transducer and the speaker indicated for providing fetal heartbeat that is connected with power amplifier module.
7. fetus-voice meter as claimed in claim 6, is characterized in that, be connected with an amplification filtering module between described doppler transducer and power amplifier module.
8. fetus-voice meter as claimed in claim 6, is characterized in that, be connected with a low pass filter between described power amplifier module and speaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520118382.8U CN204445944U (en) | 2015-02-27 | 2015-02-27 | Fetus-voice meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520118382.8U CN204445944U (en) | 2015-02-27 | 2015-02-27 | Fetus-voice meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204445944U true CN204445944U (en) | 2015-07-08 |
Family
ID=53652900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520118382.8U Expired - Fee Related CN204445944U (en) | 2015-02-27 | 2015-02-27 | Fetus-voice meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204445944U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107635475A (en) * | 2017-04-10 | 2018-01-26 | 深圳市理邦精密仪器股份有限公司 | Doppler baby's heart instrument |
-
2015
- 2015-02-27 CN CN201520118382.8U patent/CN204445944U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107635475A (en) * | 2017-04-10 | 2018-01-26 | 深圳市理邦精密仪器股份有限公司 | Doppler baby's heart instrument |
| WO2018187915A1 (en) * | 2017-04-10 | 2018-10-18 | 深圳市理邦精密仪器股份有限公司 | Doppler fetus heart meter |
| CN111920449A (en) * | 2017-04-10 | 2020-11-13 | 深圳市理邦精密仪器股份有限公司 | Doppler fetal rhythm instrument |
| US10939893B2 (en) | 2017-04-10 | 2021-03-09 | Edan Instruments, Inc | Doppler fetal heartbeat monitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |