CN102525418A - Premature delivery prediction instrument - Google Patents
Premature delivery prediction instrument Download PDFInfo
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- CN102525418A CN102525418A CN2011104169335A CN201110416933A CN102525418A CN 102525418 A CN102525418 A CN 102525418A CN 2011104169335 A CN2011104169335 A CN 2011104169335A CN 201110416933 A CN201110416933 A CN 201110416933A CN 102525418 A CN102525418 A CN 102525418A
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- microprocessor
- puerpera
- uterine
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- 206010036595 Premature delivery Diseases 0.000 title abstract 3
- 208000036029 Uterine contractions during pregnancy Diseases 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 13
- 210000001015 abdomen Anatomy 0.000 claims abstract description 5
- 208000005107 Premature Birth Diseases 0.000 claims abstract 5
- 230000003183 myoelectrical effect Effects 0.000 claims abstract 5
- 206010036590 Premature baby Diseases 0.000 claims abstract 4
- 210000004291 uterus Anatomy 0.000 claims description 9
- 230000035606 childbirth Effects 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 210000000754 myometrium Anatomy 0.000 claims 1
- 230000003187 abdominal effect Effects 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 abstract description 5
- 230000032696 parturition Effects 0.000 abstract 1
- 208000006399 Premature Obstetric Labor Diseases 0.000 description 19
- 206010036600 Premature labour Diseases 0.000 description 19
- 208000026440 premature labor Diseases 0.000 description 19
- 230000005540 biological transmission Effects 0.000 description 5
- 230000005856 abnormality Effects 0.000 description 4
- 230000003191 uterotonic effect Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001605 fetal effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002085 persistent effect Effects 0.000 description 2
- 206010020772 Hypertension Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 210000003679 cervix uteri Anatomy 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 206010012601 diabetes mellitus Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 210000000663 muscle cell Anatomy 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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Abstract
本发明的早产预测仪，属于临床检测领域。由压力传感器、体表电极、模拟/数字转换器、微处理器、外部器件、电源组成，压力传感器用于放置产妇腹部采集子宫收缩时的压力信号，并将其传输至微处理器；体表电极用于从产妇腹部体表采集子宫肌电信号并传输至模拟/数字转换器；模拟/数字转换器用于将采集到的子宫肌电信号进行模拟信号至数字信号的转换，并将得到的数字信号传输至微处理器；微处理器用于将接收到的子宫肌电数字信号进行处理、运算并将得到的结果传输至外部器件；电源用于给整个系统供电。本发明能够无创的进行早产预测的仪器，对产妇的早产进行预测，得出产妇距离分娩的倒计时时间，同时也可以用于监测产妇的子宫收缩情况。
The premature birth predictor of the invention belongs to the field of clinical detection. It is composed of pressure sensor, body surface electrodes, analog/digital converter, microprocessor, external devices, and power supply. The pressure sensor is used to place the pressure signal of the puerpera’s abdomen to collect the pressure signal of uterine contraction and transmit it to the microprocessor; the body surface The electrodes are used to collect uterine myoelectric signals from the abdominal surface of the puerpera and transmit them to the analog/digital converter; the analog/digital converter is used to convert the collected uterine myoelectric signals from analog signals to digital signals, and convert the obtained digital signals The signal is transmitted to the microprocessor; the microprocessor is used to process and calculate the received uterine myoelectric digital signal and transmit the obtained result to the external device; the power supply is used to supply power to the whole system. The invention is an instrument capable of non-invasively predicting premature delivery, predicts the premature delivery of the puerpera, obtains the countdown time of the puerpera before giving birth, and can also be used to monitor the uterine contraction of the puerpera.
Description
Technical field
The invention belongs to the Clinical detection field, relate to a kind of premature labor prediction instrument.
Background technology
The main cause that the puerpera causes having difficult labour when childbirth has three kinds: fetal abnormality, abnormality of birth canal and abnormal uterine action.Wherein fetal abnormality and abnormality of birth canal can be before childbirth be foreseen through means such as ultrasonic accurately, and abnormal uterine action can only detect during parturient childbirth.Inertia of uterus when abnormal uterine action mainly shows as parturient childbirth or uterine contraction are disorderly, and whether the detection of therefore strong and weak to uterine contraction and harmony is can the smooth delivery ten minutes important to the prediction puerpera.On the other hand, up to now, prior art can't accurately be predicted puerpera's production time, also is based on the calculating of risk factor for the prediction of premature labor.Though many risk factors can be used for prediction, too short etc. like diabetes, hypertension, smoking, uterine malformation, cervix uteri, the prediction of premature labor is far from arriving definite degree.Therefore the new technique that improves the premature labor predictive ability is that using value is arranged very much.Development along with stages of labor; Uterotonic frequency gets higher; The time that contraction continues is elongated; And because there is coupling in the electrical activity of uterus muscle cell with mechanical activity, be feasible so analyze uterotonic frequency through the uterine myoelectricity that detects body surface with shrinking the time that continues, through to the analysis of frequency and persistent period and then can be used for carrying out premature labor and predict.
The application number 99123720.X of University Of Tianjin, denomination of invention are " uterus contraction monitor "; Application number 200410019820.1, denomination of invention are " uterine contraction activity mapping instrument "; Application number 200410072544.5, denomination of invention are monitored uterotonic power or harmony for adopting the body surface uterine myoelectricity in the Chinese patent of " uterus shrinkage laplacian relief map instrument "; But do not monitor uterus power and harmony simultaneously; And the puerpera is not predicted the production time, so these instruments do not have the premature labor predictive ability.
Summary of the invention
The present invention will solve the deficiency of prior art; A kind of instrument that can noninvasively carry out the premature labor prediction is provided; And has the strong and weak and harmony function of the uterine contraction of detection; Can predict puerpera's premature labor, draw the countdown time of puerpera, also can be used to monitor simultaneously puerpera's uterine contraction situation apart from childbirth.
For solving the problems of the technologies described above; Premature labor prediction instrument of the present invention is made up of pressure transducer, external electrode, analog/digital converter, microprocessor, external devices, power supply; Pressure signal when said pressure transducer is used to place puerpera's abdominal part collection uterine contraction, and transmit it to microprocessor; Said external electrode is used for gathering the uterine myoelectricity signal and transferring to analog/digital converter from puerpera's abdomen body-surface; Said analog/digital converter is used for the uterine myoelectricity signal that collects is carried out the conversion of analogue signal to digital signal, and with the digital data transmission that obtains to microprocessor; Said microprocessor be used for the uterine myoelectricity digital signal that receives handle, computing and with the result transmission that obtains to external devices; Said power supply is used for supplying power to whole system.
Described external electrode is a plurality of electrodes, gathers multichannel signal, and the peak of abdominal part was the set-point of central electrode when wherein the placement arrangement mode of external electrode was lain on the back with the puerpera, is that peripheral circular scope is placed with the Position Approximate in uterus.
Said external devices comprises: memorizer, control knob, display screen and interface; Control knob is used for external devices is controlled; Selection deposits microprocessor processes, calculated result memorizer in, is presented on the screen and still transmits through interface, and memorizer is used for the storage of microprocessor processes calculated result, and display screen is used to show the microprocessor processes calculated result; Interface is used for and being connected of personal computer; So that data are further handled, be connected with printer, the result is printed; Further be connected on the Internet, realize remote monitoring.
Microprocessor obtains its corresponding relation through the outburst ripple frequency of occurrences of the body surface uterine myoelectricity signal that collects and the progress of persistent period and stages of labor, carries out the countdown time that processing operations promptly can draw childbirth again.
And comparing with prior art; Premature labor prediction instrument of the present invention has the following advantages: can noninvasively carry out the premature labor prediction; Solve the problem that does not have the prediction of premature labor accurately instrument at present; The delivery time prediction is provided accurately, has avoided mother and baby's safety problem of occurring because of premature labor, reduce the inconvenience that the puerpera produces because of expected date of confinement is uncertain.Adopt novel configuration of electrodes, it is more effective to obtain uterine myoelectricity information.Adopt uterine myoelectricity signal and uterine contraction pressure signal synchronous acquisition simultaneously, detect uterine contraction power and harmony simultaneously, force of labor is predicted.
Description of drawings
Fig. 1 is the schematic diagram of premature labor prediction instrument;
Fig. 2 is the sketch map of premature labor prediction instrument display result;
1-puerpera's abdominal part, 2-pressure transducer, 3-external electrode, 4-lead line, 5-analog/digital converter, 6-power supply, 7-microprocessor, 8-interface, 9-display screen, 10-memorizer, 11-control knob.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is elaborated.
In Fig. 1; Uterine contraction detector of the present invention; It is formed by connecting pressure transducer 2, a plurality of external electrode 3, the line 4 that leads, analog/digital converter 5, microprocessor 7, interface 8, display screen 9, memorizer 10, control knob 11, and is the whole instrument power supply by power supply 6.Analog/digital converter 5 can be integrated on one piece of chip with microprocessor 7.Pressure transducer 2 is used for gathering uterotonic pressure signal and transferring to microprocessor 7 from puerpera's abdominal part 1.External electrode 3 is used for gathering the uterine myoelectricity signal and transferring to analog/digital converter 5 from puerpera's abdominal part 1.Analog/digital converter 5 carries out analog/digital conversion with the uterine myoelectricity signal that collects and becomes digital data transmission to microprocessor 7.Microprocessor 7 adopts the ARM chips, be used for to the uterine contraction pressure signal and the uterine myoelectricity digital signal that receive handle, computing, and with the result transmission that obtains to external device interface 8, display screen 9, memorizer 10.What interface 8 adopted is USB interface, is used for and being connected of personal computer, so that data are further handled, can also be connected with printer, and the result is printed, and further can be connected on the Internet, realizes remote monitoring.What display screen 9 adopted is LCD display, is used to show the microprocessor processes calculated result, can demonstrate countdown time, uterine contraction pressure curve and the uterine contraction topography of distance childbirth; What memorizer 10 adopted is the SD memorizer, is used for the microprocessor processes calculated result is stored.Control knob 11 is used for external devices is controlled, and selects microprocessor processes, calculated result are deposited in memorizer, are presented on the screen still through the interface transmission.Said power supply 6 is used for supplying power to whole system.
Wherein novel arrangement mode is adopted in the placement of external electrode 3, is similar to international 10-20 system (the 10-20international System) the electrode placement methods of electroencephalogram, and is as shown in Figure 2.The peak of abdominal part is the set-point of central electrode when lying on the back with the puerpera, is peripheral circular scope with the Position Approximate in uterus, and the interval of all point electrodes is all measured with 10% and 20%.Place the method for evenly placing with traditional n*n like this and compare, electrode is more intensive near the center, uterus.
In sum; This uterine contraction detector can solve the problem that does not have the prediction of premature labor accurately instrument at present; For the premature labor prediction provides effective detection means; Avoided mother and baby's safety problem of occurring because of premature labor, reduced the inconvenience that the puerpera produces because of expected date of confinement is uncertain, the while can be monitored the uterine contraction situation.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104169335A CN102525418A (en) | 2011-12-14 | 2011-12-14 | Premature delivery prediction instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104169335A CN102525418A (en) | 2011-12-14 | 2011-12-14 | Premature delivery prediction instrument |
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| CN102525418A true CN102525418A (en) | 2012-07-04 |
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| CN2011104169335A Pending CN102525418A (en) | 2011-12-14 | 2011-12-14 | Premature delivery prediction instrument |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106889987A (en) * | 2017-02-21 | 2017-06-27 | 暨南大学 | Uterine myoelectricity strength information extracting method based on region filtering treatment |
| CN108578191A (en) * | 2018-05-21 | 2018-09-28 | 江苏医药职业学院 | Portable labor pain alleviates device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5373852A (en) * | 1993-06-25 | 1994-12-20 | The Regents Of The University Of California | Monitoring uterine contractions by radiotelemetric transmission |
| US20020193701A1 (en) * | 1999-12-21 | 2002-12-19 | Simpson Nigel Alastair Buist | Device for prediction of human or mammalian labour |
| CN1444905A (en) * | 2003-01-29 | 2003-10-01 | 广州三瑞医疗器械有限公司 | Method and device for monitoring contraction activities of mother womb and controlling childbirth process |
| CN1520272A (en) * | 2001-05-29 | 2004-08-11 | ���ֳ� | System for detection and analysis of material uterine, material and fetal cardiac and fetal brain activity |
| CN202537484U (en) * | 2011-12-14 | 2012-11-21 | 北京理工大学 | Premature delivery prediction instrument |
-
2011
- 2011-12-14 CN CN2011104169335A patent/CN102525418A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5373852A (en) * | 1993-06-25 | 1994-12-20 | The Regents Of The University Of California | Monitoring uterine contractions by radiotelemetric transmission |
| US20020193701A1 (en) * | 1999-12-21 | 2002-12-19 | Simpson Nigel Alastair Buist | Device for prediction of human or mammalian labour |
| CN1520272A (en) * | 2001-05-29 | 2004-08-11 | ���ֳ� | System for detection and analysis of material uterine, material and fetal cardiac and fetal brain activity |
| CN1444905A (en) * | 2003-01-29 | 2003-10-01 | 广州三瑞医疗器械有限公司 | Method and device for monitoring contraction activities of mother womb and controlling childbirth process |
| CN202537484U (en) * | 2011-12-14 | 2012-11-21 | 北京理工大学 | Premature delivery prediction instrument |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106889987A (en) * | 2017-02-21 | 2017-06-27 | 暨南大学 | Uterine myoelectricity strength information extracting method based on region filtering treatment |
| CN106889987B (en) * | 2017-02-21 | 2019-12-24 | 暨南大学 | Extraction method of uterine myoelectric intensity information based on segmental filtering |
| CN108578191A (en) * | 2018-05-21 | 2018-09-28 | 江苏医药职业学院 | Portable labor pain alleviates device |
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Application publication date: 20120704 |