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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Abstract
The invention relates to a premature delivery prediction instrument, belonging to the field f clinical detection. The premature delivery prediction instrument comprises a pressure sensor, a boy surface electrode, an analog/digital converter, a microprocessor, an external component and a power supply; the pressure sensor is arranged on the abdomen of the parturient and used for collecting the pressure signal generated during uterine contraction and transmitting the pressure signal to the microprocessor; the body surface electrode is used for collecting the uterine muscle electrical signal from the surface of the abdomen of the parturient and transmitting the uterine muscle electrical signal to the analog/digital converter; the analog/digital converter is used for converting the collected uterine muscle electrical signal from the analog signal to the digital signal and transmitting the obtained digital signal to the microprocessor; the microprocessor is used for processing and calculating the received uterine muscle electrical digital signal and transmitting the obtained result to the external component; and the power supply is used for supplying power to the whole system. The premature delivery prediction instrument is used for predicting the premature delivery of the parturient non-invasively so as to obtain the count-down time of the delivery of the parturient. The premature delivery prediction instrument can be also used for monitoring the uterine contraction of the parturient.
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)
1. premature labor prediction instrument; It is characterized in that: form by 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.
2. premature labor prediction instrument as claimed in claim 1; It is characterized in that: described external electrode is a plurality of electrodes; Gather multichannel signal; 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, was that peripheral circular scope is placed with the Position Approximate in uterus.
3. according to claim 1 or claim 2 premature labor prediction instrument, it is characterized in that: 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.
4. according to claim 1 or claim 2 premature labor prediction instrument; It is characterized in that: 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.
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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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| Application Number | Priority Date | Filing Date | Title |
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| 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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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 | Uterine myoelectricity intensity information extraction method based on segmented filtering processing |
| 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 |