CN104905819A - Conformal fetal heart monitoring sensor and work method thereof - Google Patents
Conformal fetal heart monitoring sensor and work method thereof Download PDFInfo
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- CN104905819A CN104905819A CN201510276393.3A CN201510276393A CN104905819A CN 104905819 A CN104905819 A CN 104905819A CN 201510276393 A CN201510276393 A CN 201510276393A CN 104905819 A CN104905819 A CN 104905819A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/02—Measuring pulse or heart rate
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
- A61B8/0866—Detecting organic movements or changes, e.g. tumours, cysts, swellings involving foetal diagnosis; pre-natal or peri-natal diagnosis of the baby
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
- A61B8/4483—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
- A61B8/4483—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer
- A61B8/4494—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer characterised by the arrangement of the transducer elements
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/48—Diagnostic techniques
- A61B8/488—Diagnostic techniques involving Doppler signals
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2503/00—Evaluating a particular growth phase or type of persons or animals
- A61B2503/04—Babies, e.g. for SIDS detection
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- Ultra Sonic Daignosis Equipment (AREA)
Abstract
The invention provides a conformal fetal heart monitoring sensor. The conformal fetal heart monitoring sensor is characterized by comprising a curved outer shell and ultrasonic transducers, the radius of curvature of the inner surface of the curved outer shell ranges from 15 cm to 40 cm, and the area of the inner surface of the curved outer shell is not smaller than 35 cm<2>. The invention further provides a work method of the conformal fetal heart monitoring sensor. The work method is characterized by comprising the following steps of dividing the ultrasonic transducers into multiple sets, sequentially operating each ultrasonic transducer set, analyzing the monitored fetal heart sound signal intensity when each ultrasonic transducer set operates, and selecting the ultrasonic transducer set with the strongest monitored fetal heart sound signal to work. By means of the conformal fetal heart monitoring sensor and the work method thereof, the shape of the inner surface is similar to the shape of the abdomen of a puerpera, the sensor better fits the abdomen, and monitoring is more comfortable; the area of the inner surface is larger, the coverage area of an ultrasonic field is large, and the fetal heart monitoring performance is not reduced and the ultrasonic launching dosage is not increased while the monitoring comfort is improved and the coverage area of the ultrasonic field is increased.
Description
Technical field
The present invention relates to medical monitoring arts, particularly the conformal fetal rhythm monitoring sensor of one and method of work thereof.
Background technology
At present, the Fetal heart electronic monitor method be most widely used clinically is cardiotocography (Cardiocotography, CTG).When carrying out cardiotocography, need real time record tire cardiotocogram, comprise the uterine contraction curve (tocography, TOCO) of fetal heart rate curve (fetal heart rate, FHR) and mother's uterine pressure.Then, doctor analyzes fetal rhythm uterine contraction curve according to certain standard, and then the health status of assessment fetus.
Wherein, the monitoring of Fetal Heart Rate utilizes principle of Doppler, ultrasonic wafer is close to pregnant and lying-in women's abdominal part to monitor fetal heart sound signal.The face that existing fetal heart rate monitoring sensor (ultrasonic transducer) contacts with puerpera is all plane, and pregnant and lying-in women's abdominal part is lonely shape face.Because shape is not mated between the two, cause fetal heart rate monitoring sensor and pregnant and lying-in women's abdominal part when fixing to be formed and extrude, cause anemia of pregnant woman uncomfortable; And owing to being the contact in plane and lonely face, cause the contact area of ultrasonic transducer and pregnant and lying-in women general less, therefore in whole ultrasonic monitoring sensor covering abdomen, scope is just smaller.When guarding, if F/A just needs the fixed position readjusting ultrasonic monitoring sensor, reached best monitoring effect, this often increases the workload of medical worker.Special in domestic monitoring, because pregnant and lying-in women lack certain Professional knowledge, find suitable sensor set-point and the operation inconvenience of pregnant and lying-in women can be caused even to affect whole guardian process.
Summary of the invention
The object of the invention is to solve the problem, a kind of conformal fetal rhythm monitoring sensor and method of work thereof are provided, larger monitoring range can be covered, more comfortable, carry out fetal heart rate monitoring more easily.
In order to achieve the above object, the present invention adopts following technical scheme: a kind of conformal fetal rhythm monitoring sensor, is characterized in that, comprise curved shell and ultrasonic transducer; Described curved inner surface of outer cover range of curvature radius is: 15 ~ 40cm.
Further, the both sides of described curved shell are also provided with the grip structure for cross-under tire prison bandage.
Further, described curved inner surface of outer cover is also provided with flexible material, described flexible material is thermoplastic, or is memorial alloy, or is silica gel.
Further, described ultrasonic transducer number is no less than 2.
Further, the area of the inner surface of described curved shell is not less than 35cm
2.
Further, ultrasonic transducer number in described curved shell is 18, be distributed as 4 row, often row number is respectively 4,5,5,4, described 18 ultrasonic transducers can be divided into 6 groups, often group has 7 ultrasonic transducers, and wherein 1 is positioned at first-class hexagonal center, and other 6 are positioned at hexagonal 6 vertex positions such as described.
Further, ultrasonic transducer in described curved shell is arranged along described curved inner surface of outer cover, described ultrasonic transducer orthographic projection is distributed as four lines, often row number is respectively 4,5,5,4, described 18 ultrasonic transducers can be divided into 6 groups, often group has 7 ultrasonic transducers, comprises middle 1, peripheral 6, and described peripheral 6 ultrasonic transducers are positioned at hexagonal 6 summits such as.
The present invention also provides a kind of method of work based on above-mentioned fetal rhythm monitoring sensor, it is characterized in that, comprises the following steps:
A1, described ultrasonic transducer is divided into some groups, runs successively and often organize ultrasonic transducer;
The fetal heart sound signal intensity of monitoring when ultrasonic transducer runs often is organized in A2, analysis;
A3, the one group of ultrasonic transducer work selecting the fetal heart sound signal intensity of monitoring the strongest.
Further, further comprising the steps of: fetal heart sound signal intensity threshold is set, when the fetal heart sound signal intensity of monitoring is less than described fetal heart sound signal intensity threshold, repeat A1 ~ A3 step.
The present invention has following advantage and beneficial effect relative to prior art:
1, conformal fetal rhythm monitoring sensor provided by the invention, its inner surface configuration and pregnant and lying-in women's abdominal part shape similar, laminating is tightr, guards more comfortable.
2, conformal fetal rhythm monitoring sensor provided by the invention, its inner surface area is larger, and ultrasonic sound field coverage is larger, in monitoring process, reduces or need not find fetal rhythm position again and can meet monitoring demand.
3, the method for work of conformal fetal rhythm monitoring sensor provided by the invention, while raising monitoring comfort level, increase sound field coverage, does not reduce fetal rhythm Monitoring Performance, does not increase ultrasound emission dosage.
Accompanying drawing explanation
Fig. 1 is conformal fetal rhythm monitoring sensor external shape schematic diagram.
Fig. 2 is the conformal fetal rhythm monitoring sensor external shape schematic diagram improved.
Fig. 3 is the conformal fetal rhythm monitoring sensor external shape schematic diagram improved.
Fig. 4 is ultrasonic transducer distribution schematic diagram.
Fig. 5 is the ultrasonic transducer distribution schematic diagram improved.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
With reference to Fig. 1, the present embodiment provides a kind of conformal fetal rhythm monitoring sensor, it is characterized in that, comprises curved shell 101 and ultrasonic transducer 102, and the range of curvature radius of the inner surface of described curved shell 101 is: 15 ~ 40cm.
Clinically, fetal heart rate monitoring is generally used for 28 weeks later anemia of pregnant woman, now, due to the increase of fetus in body, and the curved spherical shape of her abdominal.In order to make fetal rhythm monitoring sensor better fit in puerpera's abdominal part, at the inner surface of fetal rhythm monitoring sensor, the surface design of namely fitting with puerpera's abdominal part is the structure similar with puerpera's abdominal part shape, is conducive to improving anemia of pregnant woman like this and guards comfort.Certainly, also there are some differences in different her abdominal radians, therefore can design multiple different style when designing, and selects for dissimilar anemia of pregnant woman.
Further, with reference to Fig. 2, the both sides of described curved shell 101 are also provided with the grip structure 103 for cross-under tire prison bandage.
At present, tire prison probe utilizes bandage to be fixed on puerpera's abdominal region to guard for a long time.Also be provided with the grip structure 103 for cross-under tire prison bandage in the both sides of described curved shell 101, tire prison bandage can use the mode cross-under such as magnetic sticky buckle on fetal rhythm monitoring sensor, to be wrapped in puerpera's abdominal region from both sides.
Further, with reference to Fig. 3, described curved inner surface of outer cover is also provided with flexible material 104, and described flexible material is thermoplastic, or is memorial alloy, or is silica gel.
Due to different pregnant and lying-in women, be even all not quite similar in the abdominal part shape of the different pregnancy phases of same pregnant and lying-in women, so arranging flexible material at curved inner surface of outer cover is in order to better laminating, more comfortable monitoring.
As the embodiment that the present invention is preferential, described ultrasonic transducer is no less than 2.The area of the inner surface of described curved shell 101 is not less than 35cm
2.
The face that existing fetal heart rate monitoring sensor (ultrasonic transducer) contacts with puerpera is all plane, and pregnant and lying-in women's abdominal part is lonely shape sphere, it has been exactly the contact in plane and lonely face like this, in order to ensure that fetal heart rate monitoring sensor very well and contact skin, during design, the area of fetal heart rate monitoring sensor is general less.Existing fetal heart rate monitoring sensor is generally designed to planar rondure, and diameter is generally no more than 7cm, and area is no more than 30cm
2if, too large, can cause sensors edges and contact skin bad.And the fetal heart rate monitoring sensor that the present embodiment provides is curved surface, when ensureing good with contact skin, sensor coverage can be increased greatly.
Further, with reference to shown in Fig. 1, Fig. 4, as preferential embodiment, ultrasonic transducer 102 number in described curved shell 101 is 18, is distributed as 4 row, often row number is respectively 4,5,5,4, as shown in phantom in Figure 4, described 18 ultrasonic transducers can be divided into 6 groups, and often group has 7 ultrasonic transducers, wherein 1 is positioned at first-class hexagonal center, and other 6 are positioned at hexagonal 6 vertex positions such as described.Each ultrasonic transducer is represented with " circlec method " in figure.
Shell due to fetal rhythm monitoring sensor is curved shell 101, and 18 ultrasonic transducers so shown in Fig. 4 can be arranged at different planes along curved shell 101.Certainly, also can be arranged on same plane, as shown in Figure 1, then need to arrange between ultrasonic transducer and shell than existing slightly thick acoustic matching layer.
Electroacoustic signal, as a kind of energy conversion device, can be changed mutually by ultrasonic transducer.Acoustic matching layer, as the important component part of medical supersonic transducer, can realize acoustic impedance coupling or transition, the acoustic energy transmitance between tissue and piezoelectric chip and sensitivity are increased substantially.In existing fetal rhythm monitoring sensor, acoustic matching layer for connecting ultrasonic transducer and shell, to improve acoustic energy transmitance.
Preferential, with reference to shown in Fig. 5, shown in Fig. 4 18 ultrasonic transducer is arranged along curved shell 101 inner surface, the orthographic projection of described 18 ultrasonic transducers is distributed as four lines, often row number is respectively 4,5,5,4, and described 18 ultrasonic transducers can be divided into 6 groups, and often group has 7 ultrasonic transducers, comprise middle 1, peripheral 6, described peripheral 6 ultrasonic transducers are positioned at hexagonal 6 summits such as.
Ultrasonic transducer is set along curved shell 101 inner surface, the acoustic matching layer thickness of ultrasonic transducer and curved shell can be reduced, at utmost improve acoustic energy transmitance.
The present invention also provides a kind of method of work of fetal rhythm monitoring sensor, it is characterized in that, comprises the following steps:
A1, described ultrasonic transducer is divided into some groups, runs successively and often organize ultrasonic transducer;
The fetal heart sound signal intensity of monitoring when ultrasonic transducer runs often is organized in A2, analysis;
A3, the one group of ultrasonic transducer work selecting the fetal heart sound signal intensity of monitoring the strongest.
Further, further comprising the steps of: fetal heart sound signal intensity threshold is set, when the fetal heart sound signal intensity of monitoring is less than described fetal heart sound signal intensity threshold, repeat A1 ~ A3 step.
With reference to shown in Fig. 4 dotted line, 18 ultrasonic transducers can be divided into 6 groups, and often group has 7, comprise middle 1, peripheral 6, and peripheral 6 are positioned at hexagonal 6 summits such as.In fact this distribution has used for reference the distribution mode of Flos Mume probe, and the distribution mode of Flos Mume probe can improve the uniformity of ultrasonic sound field distribution, and then improves the performance of monitoring fetal heart sound.The improvements of the present embodiment are, by increasing many groups " Flos Mume probes ", to improve fetal rhythm monitoring range, do not reduce again the performance of monitoring fetal heart sound.In addition, in order to reduce owing to increasing the too much problem of ultrasound emission dosage that fetal rhythm monitoring range causes, the present embodiment have employed the mode that grouping is launched, and selects one group of optimum, minimum operation, when not increasing ultrasound emission dosage, fetal rhythm monitoring range can be improved.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from spirit of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (9)
1. a conformal fetal rhythm monitoring sensor, is characterized in that, comprises curved shell and ultrasonic transducer, and the range of curvature radius of the inner surface of described curved shell is: 15 ~ 40cm.
2. conformal fetal rhythm monitoring sensor according to claim 1, is characterized in that, the both sides of described curved shell are also provided with the grip structure for cross-under tire prison bandage.
3. conformal fetal rhythm monitoring sensor according to claim 1, is characterized in that, described curved inner surface of outer cover is also provided with flexible material, and described flexible material is thermoplastic, or is memorial alloy, or is silica gel.
4. conformal fetal rhythm monitoring sensor according to claim 1, is characterized in that, described ultrasonic transducer number is no less than 2.
5. conformal fetal rhythm monitoring sensor according to claim 1, is characterized in that, the area of the inner surface of described curved shell is not less than 35cm
2.
6. the conformal fetal rhythm monitoring sensor according to any one of Claims 1 to 5, it is characterized in that, ultrasonic transducer number in described curved shell is 18, be distributed as 4 row, often row number is respectively 4,5,5,4, and described 18 ultrasonic transducers can be divided into 6 groups, and often group has 7 ultrasonic transducers, wherein 1 is positioned at first-class hexagonal center, and other 6 are positioned at hexagonal 6 vertex positions such as described.
7. the conformal fetal rhythm monitoring sensor according to any one of Claims 1 to 5, it is characterized in that, ultrasonic transducer number in described curved shell is 18, arrange along described curved inner surface of outer cover, described ultrasonic transducer orthographic projection is distributed as 4 row, and often row number is respectively 4,5,5,4, described 18 ultrasonic transducers can be divided into 6 groups, often group has 7 ultrasonic transducers, and wherein 1 is positioned at first-class hexagonal center, and other 6 are positioned at hexagonal 6 vertex positions such as described.
8., based on a method of work for the fetal rhythm monitoring sensor described in claim 1 ~ 7, it is characterized in that, comprise the following steps:
A1, described ultrasonic transducer is divided into some groups, runs successively and often organize ultrasonic transducer;
The fetal heart sound signal intensity of monitoring when ultrasonic transducer runs often is organized in A2, analysis;
A3, the one group of ultrasonic transducer work selecting the fetal heart sound signal intensity of monitoring the strongest.
9. based on the method for work of fetal rhythm monitoring sensor according to claim 8, it is characterized in that, further comprising the steps of: fetal heart sound signal intensity threshold is set, when the fetal heart sound signal intensity of monitoring is less than described fetal heart sound signal intensity threshold, repeat A1 ~ A3 step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510276393.3A CN104905819A (en) | 2015-05-26 | 2015-05-26 | Conformal fetal heart monitoring sensor and work method thereof |
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| CN201510276393.3A CN104905819A (en) | 2015-05-26 | 2015-05-26 | Conformal fetal heart monitoring sensor and work method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105943089A (en) * | 2016-06-03 | 2016-09-21 | 广州馨瑞艾特科技有限公司 | Fetal heart monitoring sensor and manufacturing method thereof |
| CN108236476A (en) * | 2016-12-27 | 2018-07-03 | 中国移动通信有限公司研究院 | A kind of fetal rhythm detection method for determining optimal position and system |
| CN108814648A (en) * | 2018-03-30 | 2018-11-16 | 清华大学 | Flexible monitoring device and fetal rhythm monitoring method based on flexible monitoring device |
| EP4289365A1 (en) * | 2022-06-09 | 2023-12-13 | GE Precision Healthcare LLC | System and method for utilizing a single ultrasound imaging device to simultaneously measure a maternal heart rate and fetal heart rates of multiple fetuses |
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| US3927662A (en) * | 1971-12-08 | 1975-12-23 | Hoffmann La Roche | Ultrasonic transducer assembly |
| CA1250664A (en) * | 1984-10-15 | 1989-02-28 | Harold M. Hastings | External fetal heart monitor |
| US4966152A (en) * | 1987-07-21 | 1990-10-30 | Hewlett-Packard Company | Transducer |
| CN201101540Y (en) * | 2008-02-26 | 2008-08-20 | 来存环 | Fetal monitor probe |
| WO2011027093A1 (en) * | 2009-09-07 | 2011-03-10 | Sonovia Limited | Flexi-pcb mounting of ultrasonic transducers for enhanced dermal and transdermal applications |
| CN104274210A (en) * | 2014-09-24 | 2015-01-14 | 广州三星通信技术研究有限公司 | Fetal heart monitoring apparatus and fetal hear monitoring method |
| CN204765712U (en) * | 2015-05-26 | 2015-11-18 | 广州三瑞医疗器械有限公司 | Shape child heart monitor sensor fits |
-
2015
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3927662A (en) * | 1971-12-08 | 1975-12-23 | Hoffmann La Roche | Ultrasonic transducer assembly |
| CA1250664A (en) * | 1984-10-15 | 1989-02-28 | Harold M. Hastings | External fetal heart monitor |
| US4966152A (en) * | 1987-07-21 | 1990-10-30 | Hewlett-Packard Company | Transducer |
| CN201101540Y (en) * | 2008-02-26 | 2008-08-20 | 来存环 | Fetal monitor probe |
| WO2011027093A1 (en) * | 2009-09-07 | 2011-03-10 | Sonovia Limited | Flexi-pcb mounting of ultrasonic transducers for enhanced dermal and transdermal applications |
| CN104274210A (en) * | 2014-09-24 | 2015-01-14 | 广州三星通信技术研究有限公司 | Fetal heart monitoring apparatus and fetal hear monitoring method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105943089A (en) * | 2016-06-03 | 2016-09-21 | 广州馨瑞艾特科技有限公司 | Fetal heart monitoring sensor and manufacturing method thereof |
| CN108236476A (en) * | 2016-12-27 | 2018-07-03 | 中国移动通信有限公司研究院 | A kind of fetal rhythm detection method for determining optimal position and system |
| CN108814648A (en) * | 2018-03-30 | 2018-11-16 | 清华大学 | Flexible monitoring device and fetal rhythm monitoring method based on flexible monitoring device |
| EP4289365A1 (en) * | 2022-06-09 | 2023-12-13 | GE Precision Healthcare LLC | System and method for utilizing a single ultrasound imaging device to simultaneously measure a maternal heart rate and fetal heart rates of multiple fetuses |
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Application publication date: 20150916 |