WO2017089602A1 - Appareil et procédé de gestion de mouvement fœtal par stimulation environnementale - Google Patents

Appareil et procédé de gestion de mouvement fœtal par stimulation environnementale Download PDF

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Publication number
WO2017089602A1
WO2017089602A1 PCT/EP2016/078923 EP2016078923W WO2017089602A1 WO 2017089602 A1 WO2017089602 A1 WO 2017089602A1 EP 2016078923 W EP2016078923 W EP 2016078923W WO 2017089602 A1 WO2017089602 A1 WO 2017089602A1
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WO
WIPO (PCT)
Prior art keywords
environmental
recorded
events
fetal movement
event
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Application number
PCT/EP2016/078923
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English (en)
Inventor
Jingwei Tan
Yu Qi
Original Assignee
Koninklijke Philips N.V.
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Koninklijke Philips N.V. filed Critical Koninklijke Philips N.V.
Publication of WO2017089602A1 publication Critical patent/WO2017089602A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • 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
    • A61B2503/02—Foetus
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/48—Other medical applications
    • A61B5/4836—Diagnosis combined with treatment in closed-loop systems or methods

Definitions

  • the present invention generally relates to fetal movement management, especially to fetal movement with environmental stimulation.
  • Pregnancy is a physiological state that creates a mix of joys and anxieties for the mother and the family. Perception of fetal movement is the only method available for the mother-to-be to be convinced about the well-being of the fetus in the womb. Fetal movements can be first perceived anytime between 16-20 weeks of pregnancy and they are referred to as quickening movements. The activity of the fetus varies during the day as well as during the progress of gestation. Fetal movement can be triggered by surrounding environmental stimulators (e.g., sound, voices, music, light, video, environmental
  • the environmental stimulator may influence a fetus in a direct or indirect way.
  • the environmental stimulator impacts on the mom- to-be and then the fetus will be influenced by the change of the mom-to-be.
  • Pregnancy is a special and exciting time for parents, and it is of interest to parents-to-be to capture the fetal movements and the context within which they occur in order to be able to remember this time. Further, managing such fetal movements by encouraging the movement or soothing the fetus may have health or educational benefits, too.
  • CN101623205 discloses a device to record surrounding parameters of a pregnant woman and grade fetal development, which facilitates instantaneous monitoring of the influence of the environment on fetal development. However, CN101623205 is silent about fetal movement management or a record for memory.
  • An apparatus for managing fetal movement through environmental stimulation comprising a detector configured to detect fetal movement, a recorder configured to record the environmental events happening to the fetus that occurred concurrently with or before the fetal movement, a memory configured to store the recorded environmental events and a player configured to generate the environmental stimulation by presenting at least one of the environmental events recorded.
  • the events happening to shape the environment of the fetus such as sound, light, temperature or maternal movement, are considered as the environmental event happening to the fetus.
  • the environmental events that occurred concurrently with or prior to the fetal movements are assumed to be effective stimulations.
  • Such environmental events are recorded and stored, and they can be used to be regenerated by a player to generate an expected response of the fetus, i.e., either to trigger the fetal movement or to calm down the active fetus.
  • the environmental stimulation is personalized to a particular fetus as opposed to general stimulation, such as lullaby music or an educational video.
  • the proposed invention also facilitates the preparation of a souvenir of a memory shared between the parents-to-be and the fetus.
  • the apparatus further comprises a processor configured to execute instructions that are stored in the memory, the instructions causing the apparatus to modify the recorded environmental events, wherein the player is configured to generate the environmental stimulation by presenting a recording of or simulation of at least one of the edited environmental events.
  • a processor is set for modification.
  • modification may refer to editing comprising clipping, duplicating, splitting, repositioning, insertion or applying some predetermined special effects. It may also refer to signal processing of the recorded environmental events.
  • the editing may be conducted automatically as predefined or according to the instructions of a user (e.g., a parent or parent-to-be).
  • the apparatus further comprises a user interface
  • a user interface can be further implemented to enable interaction with the user to receive the inputs. For example, the user may need to review the environmental events or edit the recorded environmental events, in which case the user interface helps to receive the instruction of the user.
  • the memory is further configured to pre- store predefined stimulations for fetal movement and the processor is further configured to execute
  • instructions that are stored in the memory, the instructions causing the apparatus to edit the recorded surrounding activities with a combination of the predefined stimulations.
  • some predefined contents may be introduced that is to be integrated into recorded surrounding activities as a stimulation to be reproduced to the fetus, based on a user's decision or the predefined functionality of the apparatus.
  • Some general educational contents, such as lullaby music, may be an example of predefined contents.
  • lullaby music will be integrated into recorded environmental events to soothe the fetus, resulting in a reduction in fetal movement.
  • the apparatus further comprises a processor configured to execute instructions that are stored in the memory, the instructions causing the apparatus to determine the correlation between a particular recorded environmental event and the fetal movement.
  • the recorded environmental event is decomposed into multiple features and the processor is further configured to execute instructions that are stored in the memory, the instructions causing the apparatus to determine the correlation between respective features and the fetal movement.
  • An environmental event usually comprises multiple features such as different sound features or different types of external movement. More specifically, one example of such activity nearby may be conversations, which comprise multiple voices from different people. Another example could be exercises for pregnant women, including stretching and walking. Therefore, further analysis may be performed on feature level, such as a particular voice or a particular movement, instead of on event level. In this way, the most influential features can be determined (e.g. dad-to-be's voice or mother-to-be's walk), which may be selected to constitute a most efficient environmental stimulation.
  • the processor is further configured to execute instructions that are stored in the memory, the instructions causing the apparatus to predict the fetal movement, based on the environmental event occurred and the determined correlation.
  • the fetal response can be predicted based on the surrounding activities that occurred simultaneously with or before the fetal movement.
  • the apparatus further comprises a processor configured to execute instructions that are stored in the memory, the instructions causing the apparatus to trigger the recorder to record the environmental events when fetal movement is detected or to place a timestamp of fetal movements on the timeline of the continuously recorded environmental events stored in the memory.
  • Recording of the environmental events may be triggered by fetal movements detected and then stopped if the fetal movements not detected anymore.
  • the recording of the environmental events may otherwise be terminated according to a predefined duration or a result of analysis of the recorded activity that indicates the termination of such activity.
  • the analysis may be the amplitude analysis of the recorded signals, where an abrupt change (e.g. sharp decline) of the signal amplitude may indicate the end of an environmental event.
  • the recorded environmental event may serve as the environmental stimulation.
  • the recording can be a continuous activity lasting for a predefined period of time (e.g. 6.00 p.m. -8.00 p.m.) and then an environmental event will be derived out of the recorded raw material to serve as an environmental stimulation.
  • timestamps could be placed on the timeline of continuously recorded environmental events, so that the environmental stimulation will be determined by means of the timestamps, where each timestamp indicates the time when a fetal movement happens.
  • the activities before one timestamp for a predefined duration(e.g. 5 minutes) or happening along successive multiple timestamps may be determined as an environmental stimulation. Either option enables the determination of the environmental events occurred concurrently with or prior to fetal movements.
  • the detector comprises a motion sensor to detect an environmental activity
  • the recorder is configured to interpret the environmental activity in form of an environmental event depiction recordable and record the environmental event depiction interpreted, the content of the environmental event depiction being indicative of the environmental activity.
  • environmental activities for example the motion, that are not able to be recorded directly and reproduced by a player.
  • Maternal activity is one of such
  • environmental events that can influence the fetal status With the help of an accelerometer or multiple accelerometers attached to the mother-to-be, the activity can be accurately measured. Although a recorder is not able to directly record the maternal movements, the result can be recorded in terms of text, audio or video, which indicates the activity details, including type, attitude and speed. Thus, environmental events depictions interpretable to the player are stored in the memory. Then, the player will demonstrate the depiction, such as the text, audio or video that describes the details of the maternal activity happened during or before the fetal movements, to the user as an instruction to perform such activity. In this way, the maternal activity, as an environmental activity, is reproduced to influence the fetus.
  • the invention comprises a method comprising steps of detecting S101 fetal movement, recording SI 02 the environmental events that occurred concurrently with or before the fetal movement, storing SI 03 the recorded surrounding activities and generating SI 04 the environmental stimulation by presenting at least one of the environmental events recorded.
  • Fig. 1 shows an apparatus for managing fetal movement through environmental stimulation in accordance with an embodiment of the present invention
  • Fig. 2 shows a method of managing fetal movement through environmental stimulation in accordance with an embodiment of the present invention.
  • FIG. 1 illustrates an exemplary hardware diagram 100 for implementing an apparatus for managing fetal movement through environmental stimulation in accordance with an embodiment of the present invention.
  • the apparatus comprises a detector 101, a recorder 102, a memory 103 and a player 104 interconnected via one or more system buses 107.
  • FIG. 1 constitutes, in some respects, an abstraction and that the actual organization of the components of the device 100 may be more complex than illustrated.
  • the recorder 102 records the environmental events that occurred concurrently with or before the fetal movement, where the detector 101 detects the fetal movement to provide a time reference to the environmental events for determination of "occurred concurrently with the fetal movement" or "prior to the fetal movement".
  • the recorded environmental events are stored in the memory 103, which will be played by the player 104 to reproduce the environmental events.
  • the user e.g. parent-to-be, may utilize the apparatus to record the environmental events that occurred simultaneously with the fetal movement as a memento of the happy moment shared with the baby to be born, which may further be reviewed after the baby is born.
  • the user may manage the fetal movement by playing the recorded environmental to reproduce the environment where the fetus is either stimulated to move actively or to calm down.
  • the detector 101 for fetal movement may be implemented as a pressure sensor /transducer that is attachable to a mom-to-be' s belly, or other technical solutions known to those skilled in the art.
  • Examples of the pressure sensor/transducer can be a piezoelectric sensor or a strain-gauge transducer.
  • the embodiment of the strain-gauge transducer to facilitate fetal movement detection may be in keeping with what is described in C.S. Berger, Biomedical Engineering, IEEE Transactions on (Volume :BME-28 , Issue: 11 ).
  • the recorder 102 may be implemented as a sound recorder, video recorder, thermometer, pedometer, activity monitor, or other movement recorder known to those skilled in the art.
  • the player 104 may be implemented as a traditional player for audio/video, heater, fan or other technical solution known to those skilled in art.
  • the apparatus further comprises a processor 105 that is configured to execute instructions stored in the memory 103.
  • the processor 105 is capable of executing one or more instructions that cause the apparatus to modify the recordings of the environmental events.
  • the quality of raw materials recorded by the recorder may be such that the requirement predefined cannot be met, and therefore further elaboration is necessary.
  • a variety of signal processing techniques may be applied to the raw materials, such as filtering, equalization or image sharpening.
  • the modifications may also refer to editing of the recorded raw materials, comprising clipping, duplicating, splitting, repositioning, insertion or applying some predetermined special effects.
  • the modification may be initiated based on a user's inputs or automatically, as predefined.
  • the memory 103 may include various memories such as, for example LI, L2, or L3 cache or system memory. As such, the memory 103 may include a static random access memory (SRAM), dynamic RAM (DRAM), flash memory, read only memory (ROM), or other similar memory devices. In various embodiments, the memory 103 may store instructions for execution by the processor 105 or data upon which the processor 105 may operate.
  • SRAM static random access memory
  • DRAM dynamic RAM
  • ROM read only memory
  • the memory 103 may store instructions for execution by the processor 105 or data upon which the processor 105 may operate.
  • the apparatus may further comprise a user interface 106 to receive instructions from the user.
  • the user inputs may indicate what type of modification will be selected for implementation, or a particular editing operation of the recorded environmental events.
  • the various components may be duplicated in various embodiments.
  • the processor 105 may include multiple microprocessors that are configured to independently execute the methods described herein or to perform steps or subroutines of the methods described herein, such that the multiple processors cooperate to achieve the functionality described herein.
  • the various hardware components may belong to separate physical systems.
  • the processor 105 may include a first processor in a first server and a second processor in a second server.
  • predefined contents stored in the memory 103, which will be used as a source for environmental event editing.
  • the predefined contents serving for different purpose, e.g. fetal brain development or soothing the fetus, may be integrated into environmental events during editing, either based on a user's instruction or automatically, according to the predefined setting.
  • Examples of the predefined contents can be fetal educational material, such as Mozart's music, audio lessons consisting of natural sounds similar to the comforting rhythm of the mother's heartbeat or other contents determined to be influential on the fetus. After several rounds of recording the fetal response to a particular environmental event or similar environmental events, the correlation between the fetal movement and the environmental event can be determined.
  • the counts or frequency of fetal movements may also be taken into account for correlation analysis, i.e., when an environmental event evokes a high frequency of fetal movements during a predefined duration, the environmental event is determined to be an active stimulation to activate the fetus to move; when an environmental event frequently leads to a below- average number of fetal movements during a predefined period of time, the environmental event is determined to be a passive stimulation to calm the fetus down.
  • the correlations determined provide a helpful basis for fetal behavior prediction or more accurate management of fetal movements.
  • An environment event happening to the fetus is defined as a disruption in the environment of the fetus, e.g. a conversation that occurs in the presence of the dad-to-be, a physical exercise by the mother-to-be or a car horning.
  • One environmental event may comprise multiple features.
  • An example of such environmental event may be a conversation, which comprises multiple voices from different people, and the dad-to-be may be a participant in the conversation.
  • Another example could be exercise for pregnant women, including stretching and walking. Therefore, further correlation can be explored on feature level instead of event level, which may lead to a more accurate correlation analysis result. For example, the correlation between a particular voice (e.g. dad-to-be's voice) or a specific movement (e.g.
  • mom-to-be' s walk mom-to-be' s walk
  • the fetal movement can be determined.
  • the most influential features may be derived to constitute a stimulation event(e.g. a combination of dad-to-be's voice and mom-to-be's walk), which impacts the fetus more efficiently.
  • Fetal movements can be predicted instantaneously upon occurrence of the environmental event or in advance when correlation results are determined as mentioned above. In this way, a more delicate fetal movement management is provided.
  • the recorded environmental event can be the part or whole of the environmental events that occurred simultaneously with or before the fetal movement.
  • the recording of the environmental events is triggered by the fetal movement and stops when the fetal movement stops.
  • the environmental events happening simultaneously with the fetal movement are recorded, which may serve as an environmental stimulation.
  • the recording of the environmental events keeps going on for a predefined duration, e.g. 3 hours.
  • a timestamp is placed on the timeline of the recorded environmental events.
  • Environmental events happening before the fetal movements for a predefined period, e.g. 10 minutes, or during the fetal movements can be assumed to be an environmental stimulation.
  • a more accurate determination of the type of stimulation for calming down a fetus or activating the fetus to move may be based on a correlation analysis as mentioned above.
  • the player 104 may present the stimulation determined according to the time stamp and predefined duration.
  • the apparatus may further comprise at least a motion sensor, which can be embodied as an accelero meter 101 to be attached to the mother-to-be to detect the maternal activity.
  • a motion sensor which can be embodied as an accelero meter 101 to be attached to the mother-to-be to detect the maternal activity.
  • One accelerometer 101 may help to determine general maternal activity: moving (e.g. taking an exercise) or being still (e.g. resting).
  • Multiple accelerometers attached to respective body parts of the mother-to-be may help to determine specific movements the mother-to-be is making, such as stretching, sitting, standing or walking. For example, two accelerometers respectively attached to the arm and the leg will be sufficient to determine the movements as mentioned above.
  • the processor 105 may act as the recorder 102 to receive the output(s) of one or more accelerometers 101 and derives the maternal activities, which are converted to be descriptive contents that could be stored in the memory 103 and then presented via player 104.
  • the descriptive contents may be texts, audio instruction(s), an animation simulating the activities, video indicative of the activities or in other forms, which are easy to understand by the user.
  • Detailed information of the maternal activity or movement, such as speed or duration, may also be the contents to be presented. Then the maternal activity as an environmental event will be reproduced through the performance of the user under the instructions of the descriptive contents.
  • the apparatus can be implemented by a portable device, e.g. a mobile phone, and a separate fetal movement detector 101, wherein the portable device comprises a recorder 102, a memory 103, a player 104(e.g. audio/video player), a processor 105 or a user interface 106 (e.g. touch screen).
  • the portable device comprises a recorder 102, a memory 103, a player 104(e.g. audio/video player), a processor 105 or a user interface 106 (e.g. touch screen).
  • the data exchange between the portable device and the fetal movement detector 101 may either be wireless or wired.
  • the correlation determined may be presented on the player 104 or the user interface 106 to the user.
  • Fig.2 shows a method of managing fetal movement, the method comprising the following steps:
  • SI 03 the recorded environmental events
  • SI 04 the environmental stimulation by presenting at least one of the environmental events recorded.
  • a further step serves to facilitate the modification of the recorded environmental events before one or more environmental event are presented, such as:
  • a further step is to determine the correlation between the environmental event and the fetal movement:
  • occurrences of fetal movement correlated with the stimulation can be determined in a statistical sense, which is an example of the correlation.
  • the trend of the fetal movements with a particular activity nearby can be further determined, wherein a standard time window is set before and after the environmental event for counting fetal movements.
  • occurrences of fetal movements before, during and after the environmental event determined can be used to derive a pattern of the environmental event to influence the fetus, for example how the stimulation encourages the fetal movements or discourages the fetal movements.

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Abstract

L'invention concerne un appareil pour enregistrer des événements environnementaux et gérer le mouvement fœtal. L'appareil comprend un détecteur configuré pour détecter un mouvement fœtal ; un enregistreur conçu pour enregistrer les événements environnementaux survenant simultanément au mouvement fœtal ou avant ; une mémoire configurée pour stocker les événements environnementaux enregistrés ; un lecteur configuré pour créer la stimulation environnementale par la présentation d'au moins un des événements environnementaux enregistrés. L'appareil permet aux futurs parents de communiquer instantanément avec le fœtus et de conserver un souvenir précieux du moment partagé entre les membres de la famille, y compris le fœtus.
PCT/EP2016/078923 2015-11-27 2016-11-28 Appareil et procédé de gestion de mouvement fœtal par stimulation environnementale WO2017089602A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CNPCT/CN2015/095749 2015-11-27
CN2015095749 2015-11-27
EP16150391.7 2016-01-07
EP16150391 2016-01-07

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WO2017089602A1 true WO2017089602A1 (fr) 2017-06-01

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4898179A (en) * 1985-06-17 1990-02-06 Vladimir Sirota Device for detecting, monitoring, displaying and recording of material and fetal vital signs and permitting communication between a woman and her fetus
US5764776A (en) * 1993-11-04 1998-06-09 Francais; Caramia System for imparting sensory effects across a mother's abdomen to a fetus
US20140057232A1 (en) * 2011-04-04 2014-02-27 Daniel Z. Wetmore Apparatus, system, and method for modulating consolidation of memory during sleep
WO2015005796A1 (fr) * 2013-07-12 2015-01-15 Laerdal Global Health As Ensemble de surveillance de la fréquence cardiaque fœtale
CN104306018A (zh) * 2014-10-11 2015-01-28 重庆理工大学 具有胎音监护、胎动检测及胎动轨迹诱导功能的可穿戴式胎教腹带系统

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4898179A (en) * 1985-06-17 1990-02-06 Vladimir Sirota Device for detecting, monitoring, displaying and recording of material and fetal vital signs and permitting communication between a woman and her fetus
US5764776A (en) * 1993-11-04 1998-06-09 Francais; Caramia System for imparting sensory effects across a mother's abdomen to a fetus
US20140057232A1 (en) * 2011-04-04 2014-02-27 Daniel Z. Wetmore Apparatus, system, and method for modulating consolidation of memory during sleep
WO2015005796A1 (fr) * 2013-07-12 2015-01-15 Laerdal Global Health As Ensemble de surveillance de la fréquence cardiaque fœtale
CN104306018A (zh) * 2014-10-11 2015-01-28 重庆理工大学 具有胎音监护、胎动检测及胎动轨迹诱导功能的可穿戴式胎教腹带系统

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
C. A. KRUEGER ET AL: "Fetal Response to Live and Recorded Maternal Speech", BIOLOGICAL RESEARCH FOR NURSING, vol. 17, no. 1, 1 May 2014 (2014-05-01), US, pages 112 - 120, XP055280898, ISSN: 1099-8004, DOI: 10.1177/1099800414532308 *

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