CN201299584Y - Real-time online computer automatic analytical type fetal monitor - Google Patents
Real-time online computer automatic analytical type fetal monitor Download PDFInfo
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- CN201299584Y CN201299584Y CNU2008200268778U CN200820026877U CN201299584Y CN 201299584 Y CN201299584 Y CN 201299584Y CN U2008200268778 U CNU2008200268778 U CN U2008200268778U CN 200820026877 U CN200820026877 U CN 200820026877U CN 201299584 Y CN201299584 Y CN 201299584Y
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Abstract
The utility model discloses a fetal monitor with the automatic analysis and diagnostic function. The technical scheme is that the fetal monitor comprises a computer system, an ultrasonic transmission controller, an ultrasound probe, a preamplifier circuit, a multiplier and a fetal movement signal collecting circuit, wherein the computer consists of a host, a display, a printer, a keyboard and a mouse; the ultrasound probe, the preamplifier circuit and the multiplier are connected with each other in sequence; the multiplier is used for demodulating frequency shift; the output end of the multiplier is connected with a filter, a buffer amplifier, an A/D converter and a programmable processor in sequence to form a data transmission processing passage; the fetal movement signal collecting circuit is formed by connecting a pressure probe, a direct-current bridge, a direct-current amplifier and an A/D converter in sequence, and the A/D converter is connected with the programmable processor to form a data transmission processing passage. Clinical trial indicates that the system has higher detecting precision, better real-time and accuracy, and friendly intelligent control, and realizes the organic combination of manual analysis and automatic analysis; therefore, the analysis result meets the clinical requirement and has better diagnosis value.
Description
Technical field
The utility model discloses a kind of fetal monitor with automatic analyzing and diagnosing function.
Background technology
Fetal monitoring is the important means that ensures puerpera and fetal well-being, realization prenatal and postnatal care, in perinatal stage and the birth process fetus is guarded, and can in time find intrauterine fetal anoxia, critical symptom such as poverty-stricken, reduces fetal mortality, improves the childbirth quality.Fetal rhythm rate electronic monitoring is to obtain one of the most widely used fetus monitoring method at present clinically.Existing fetal monitor only detects and record signals such as fetal rhythm rate, uterine contraction pressure, fetal movement, can't analyze and diagnose these information, and medical personnel is very difficult to the analysis of fetal rhythm rate, uterine contraction pressure and fetal movement clinically.So, provide that a kind of can to finish the fetal monitor that detection information is carried out analyzing and diagnosing automatically be very important, help medical personnel to fetal monitoring pattern analysis and diagnosis, improved treatment level to fetal monitoring, promote the clinical practice and the development of fetal monitoring, improve obstetric quality for prenatal and postnatal care, improving the health of the people has great importance.
Summary of the invention
Task of the present utility model provides a kind of can finishing automatically and carries out the fetal monitor of analyzing and diagnosing to detecting data.
The technical solution of the utility model is:
Launch a ping, detect frequency change from the heart of fetus reflection echo signal, and with digitized.According to the pulse Doppler principle, calculate Fetal Instantaneous Heart Rate and draw the fetal rhythm rate curve by special digital signal processing algorithm; Uterine contraction pressure utilizes semiconductor pressure resistance type sensor, converts the uterine contraction pressure signal to changes in resistance, converts the variation of voltage signal again to by the differential type direct-current bridge, and carries out digitized and calculate the uterine contraction pressure uterine contraction pressure curve that draws; By anemia of pregnant woman's self-induction fetal movement situation, manually write down the moment and number of times that fetal movement takes place.
By analysis and research to traditional auto-correlation algorithm, find that its operand is bigger, need to use high speed processor can realize that cost is higher.This utility model adopts the difference average algorithm to extract the fetal rhythm rate, and operand is less, be adapted at realizing in the common Single Chip Microcomputer (SCM) system that cost is lower, and clinical adaptability is good, can satisfy actual monitoring requirement;
Aspect the map analysis of fetal rhythm uterine contraction, rely on artificial interpretation analysis traditionally, accuracy and concordance are undesirable, and doctor's labor intensity is big.It is core devices that this utility model adopts 12 A/D converters of eight passages and 320FCQ microprocessor, wavelet analysis algorithm process data are key problem in technology, and according to fetal monitoring pattern analysis and diagnosis theory, in monitoring, detect the transient change and the development trend of the various monitored parameters indexs of comparative analysis in real time, analysis result is presented in real time the next door of the response curve on the screen, also can carry out analysis-by-synthesis, provide the scoring of fetal monitoring conclusion and fetus, print the automatic analysis report of fetal monitoring computer, realized fetal monitoring pattern analysis diagnosis automatization.
Structure of the present utility model comprises the computer system that main frame, display, printer and keyboard and mouse are formed, and it is characterized in that also comprising:
The ultrasonic emitting controller;
The ultrasonic probe of Xiang Lianing, preamplifier, the multiplier that carries out the frequency displacement demodulation successively;
The outfan of multiplier connects wave filter, buffer amplifier, A/D converter and programmable processor composition data transmission process passage successively;
The Fetal Movement Signal that pressure probe, direct-current bridge, direct current amplifier and A/D converter link to each other is successively picked up slowdown monitoring circuit, and A/D converter links to each other with above-mentioned programmable processor, composition data transmission process passage.
During this utility model work, ultrasonic probe, pressure probe are picked up survey with fetal heart rate signal, uterine contraction pressure signal, the fetal movement information of fetus, deliver to A/D converter and programmable processor through handling, (COM) is connected with computer system by the transfer of data mouth, in real time fetus information carried out the computing analyzing and diagnosing synchronously.
This utility model can effectively be avoided the subjectivity error of artificial interpretation, obtains good consistent objective indicator, has promoted the accuracy of judging significantly.Clinical experiment shows: this system has higher detection precision, good real-time performance and accuracy and friendly Based Intelligent Control, and realized that manual analysis and automatic analysis of computer organically combine, brought into play computer for analysis quick and precisely with the manual analysis clinical advantage of combining closely, make analysis result more meet the clinical diagnostic value that more has.
Description of drawings
Accompanying drawing 1 is a block diagram of the present utility model.
Accompanying drawing 2 is circuit diagrams that information of the present utility model is picked up processing.
Accompanying drawing 3 is that information of the present utility model is amplified, A/D changes, the circuit diagram of digital processing part.
The specific embodiment:
The automatic analytical type fetal monitor of a kind of real-time online computer comprises the computer system that main frame, display, printer and keyboard and mouse are formed, and it is characterized in that also comprising:
The ultrasonic emitting controller;
The ultrasonic probe of Xiang Lianing, preamplifier circuit, the multiplier that carries out the frequency displacement demodulation successively;
The outfan of multiplier connects wave filter, buffer amplifier, A/D converter and programmable processor composition data transmission process passage successively;
The Fetal Movement Signal that pressure probe, direct-current bridge, direct current amplifier and A/D converter link to each other is successively picked up circuit, and A/D converter links to each other with above-mentioned programmable processor, composition data transmission process passage.
Particular circuit configurations is referring to Fig. 1:
By IC201 and on every side parts form the emission exciting circuit, pumping signal is delivered to Z201 emission wafer;
Ultrasonic the arrivals Z301 of reflection receives wafer, and the signal of generation is sent into the V301 and the pre-amplification circuit of parts composition on every side;
After signal amplified, the pumping signal after phase shift was delivered to the IC301 and the multiplier of parts composition on every side, carries out demodulation;
Signal after the demodulation, deliver to IC401, IC402, IC403 and on every side three grades of active low-pass filters forming of parts obtain useful signal;
Useful signal divides two-way, and one the tunnel through arriving the B501 speaker behind the IC501 power amplifier;
Circuit diagram 2 is delivered on another road, carries out subsequent treatment.
Among Fig. 2:
Analogue signal is delivered to the U22 A/D converter after amplifying, be converted to digital signal.
After digital signal was sent into the DSP digital signal processor processes of U20 and U21 composition, process U28 and U29 were converted to 232 rs 232 serial interface signals and send computer system.
IC table among the embodiment
| IC | Title | Model |
| IC201 | Agitator | LM1201 |
| IC301 | Multiplier | 1496 |
| IC401 | Low pass filter | LM538 |
| IC402 | Low pass filter | LM538 |
| IC403 | Low pass filter | LM538 |
| IC501 | Power amplifier | 820 |
| U18C | Buffer amplifier | TL084 |
| |
8 passages, 12, the A/D conversion | MAX188ACWP |
| U23 | Serial EEPROM | X24C00 |
| U20 | CPU | 320FCQ |
| U21 | Expansion interface | LM11PLD |
| U30 | Manostat | 7814 |
| U29 | 232 level conversion | MAX232 |
| U28 | Manostat | HP2601 |
This embodiment content is intact.
Claims (4)
1, the automatic analytical type fetal monitor of a kind of real-time online computer comprises the computer system that main frame, display, printer and keyboard and mouse are formed, and it is characterized in that also comprising:
The ultrasonic emitting controller;
The ultrasonic probe of Xiang Lianing, preamplifier circuit, the multiplier that carries out the frequency displacement demodulation successively;
The outfan of multiplier connects wave filter, buffer amplifier, A/D converter and programmable processor composition data transmission process passage successively;
The Fetal Movement Signal that pressure probe, direct-current bridge, direct current amplifier and A/D converter link to each other is successively picked up circuit, and A/D converter links to each other with above-mentioned programmable processor, composition data transmission process passage.
2, the automatic analytical type fetal monitor of real-time online computer according to claim 1, it is characterized in that the ultrasonic emitting controller by IC201 and on every side parts form the emission exciting circuit, pumping signal connects Z201 emission wafer.
3, the automatic analytical type fetal monitor of real-time online computer according to claim 1, it is characterized in that multiplier by IC301 and on every side parts form.
4, the automatic analytical type fetal monitor of real-time online computer according to claim 1, it is characterized in that wave filter by IC401, IC402, IC403 and on every side three grades of active low-pass filters forming of parts obtain useful signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200268778U CN201299584Y (en) | 2008-09-08 | 2008-09-08 | Real-time online computer automatic analytical type fetal monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200268778U CN201299584Y (en) | 2008-09-08 | 2008-09-08 | Real-time online computer automatic analytical type fetal monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201299584Y true CN201299584Y (en) | 2009-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200268778U Expired - Fee Related CN201299584Y (en) | 2008-09-08 | 2008-09-08 | Real-time online computer automatic analytical type fetal monitor |
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| Country | Link |
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| CN (1) | CN201299584Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102210586A (en) * | 2011-06-03 | 2011-10-12 | 泰安市迈迪医疗电子有限公司 | Automatic analysis method for fetus monitoring device |
| CN108808788A (en) * | 2018-06-29 | 2018-11-13 | 深圳市威尔德医疗电子有限公司 | A kind of the B ultrasound monolithic processor control device and its system of miniaturization |
-
2008
- 2008-09-08 CN CNU2008200268778U patent/CN201299584Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102210586A (en) * | 2011-06-03 | 2011-10-12 | 泰安市迈迪医疗电子有限公司 | Automatic analysis method for fetus monitoring device |
| CN108808788A (en) * | 2018-06-29 | 2018-11-13 | 深圳市威尔德医疗电子有限公司 | A kind of the B ultrasound monolithic processor control device and its system of miniaturization |
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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: 20090902 Termination date: 20150908 |
|
| EXPY | Termination of patent right or utility model |