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WO2019219178A1 - Système de surveillance cardiaque pour occupants de siège de voiture - Google Patents

Système de surveillance cardiaque pour occupants de siège de voiture Download PDF

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Publication number
WO2019219178A1
WO2019219178A1 PCT/EP2018/062621 EP2018062621W WO2019219178A1 WO 2019219178 A1 WO2019219178 A1 WO 2019219178A1 EP 2018062621 W EP2018062621 W EP 2018062621W WO 2019219178 A1 WO2019219178 A1 WO 2019219178A1
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WO
WIPO (PCT)
Prior art keywords
car seat
sensors
heart
occupant
signals
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP2018/062621
Other languages
English (en)
Inventor
Glenn Van Langenhove
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Glenn Van Langenhove Medical Management bvba
Original Assignee
Glenn Van Langenhove Medical Management bvba
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.)
Filing date
Publication date
Application filed by Glenn Van Langenhove Medical Management bvba filed Critical Glenn Van Langenhove Medical Management bvba
Priority to PCT/EP2018/062621 priority Critical patent/WO2019219178A1/fr
Publication of WO2019219178A1 publication Critical patent/WO2019219178A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/117—Identification of persons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
    • A61B5/346—Analysis of electrocardiograms
    • A61B5/349—Detecting specific parameters of the electrocardiograph cycle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
    • A61B5/6893—Cars

Definitions

  • the invention pertains to the technical field of m easuring ECG signals of car occupants, including the driver.
  • Cardiac diseases remain the number one mortality cause in the I ndustrialized world.
  • a heart attack resulting in sudden death occurs in about 370,000 people in the US only. Often, this goes without warnings such as chest pain, shortness of breath, sweating and nausea. When such sym ptoms do occur, people tend to postpone m edical care.
  • the estimated cost of cardiovascular disease reaches up to 1 trillion US dollars per year worldwide. I t is unlikely that we will be able to sustain these extreme costs in the future. I t is therefore quintessential that we develop smart ways of following patients at risk, or people at risk, by using innovative technologies.
  • Docum ent US872531 1 B1 discloses a vehicle including a seat in which an occupant sits during use of the vehicle and a monitoring system for monitoring the occupant in the seat.
  • the monitoring system includes sets of electric field antennas, each including at least one antenna, a control unit connected to the antenna sets and including selectors coupled to the antennas.
  • the selectors are controlled by the control unit to obtain signals from one or more antennas serving as receiving antennas and one or more antennas serving as sending antennas.
  • the control unit determ ines which com bination of sending antenna(s) and receiving antenna(s) provides a strongest signal in an expected heartbeat range and/or expected respiration range of the occupant and then monitors this com bination for changes and/or deviations from a normal range of heartbeats and/or respiration.
  • the aim of this system is to monitor the fatigue or drowsiness of the driver in order to prevent accidents.
  • the docum ent refers to detection of heart rate variability (HRV) using an ECG sensor mounted in the seatback or in the seat surface.
  • the system and m ethod of US872531 1 B1 thus is m ainly concerned with the im m ediate safety of other users of the road, but is intrinsically incapable of tim ely obtaining the parameters indicative of a cardiac disease or pathology.
  • the present invention relates to a m ethod for monitoring the health of a car seat occupant according to claim 1 , a system for monitoring the health of a car seat occupant according to claim 6, and a car seat according to claim 13 which can be used in the method or system according to the present invention. Further em bodiments of the invention are discussed in the dependent claims and further below.
  • the method and system of the present invention aim to provide a timely detection of a heart disease for a car seat occupant, and a driver in particular, by obtaining a signal which is accurate enough to m ake a prediction or to detect the onset of a heart disease. For instance, the onset of a heart attack could in principle be observed several hours before the critique phase. Tim ely observation thus seriously increases the likelihood of survival of a heart attack.
  • a continuous monitoring could help m edical personnel, in particular a cardiologist, to better diagnose and/or follow up on the patient’s health.
  • monitoring of heart cycli during a prolonged period may allow detection and/or better diagnostics of an otherwise undetected type of heart condition.
  • the above im provem ent of health monitoring, and in particular heart monitoring, is based on the combination of a num ber features of the present invention.
  • an accurate assessment of a heart disease requires more than a simple measurem ent of heart rhythm or heart rhythm variability.
  • the present inventors have found that such accuracy requires obtaining a three-dim ensional electrocardiographic signal, such as a vector electrocardiogram (vector-ECG or VECG) or a vector- ECG-type signal which encom passes three-dim ensional inform ation of the heart’s depolarization vector and its variation in time.
  • VECG vector electrocardiogram
  • VECG-type signal which encom passes three-dim ensional inform ation of the heart’s depolarization vector and its variation in time.
  • such accurate assessm ent requires at least 4 non-planarly located skin potential sensors.
  • sensors can be located in the back rest of the car seat, in the seating surface of the car seat, in the steering wheel of the car, in the floor of the car preferably at a position where the left foot of a car driver rests, in one or more of the foot pedals, in the gear stick, in a safety belt, or in other parts or components which can be in close proxim ity of a car seat occupant.
  • at least two of the four non-planarly located sensors are positioned in a trans-thoracic manner, i.e.
  • the sensors need to be contactless in order to provide sufficient comfort to the occupant and to ensure that the system works and the method is performed properly without specific actions of the occupant.
  • contactless sensors hereby refer to skin potential sensors which do not require galvanic contact with the skin in order to obtain a skin potential signal. Therefore, in a preferred em bodim ent, the contactless sensors are capacitively coupled sensors, i.e. sensors which are configured to transform a detected capacity or a detected change of capacity into an electrical signal representative of the detected capacity or detected change in capacity.
  • the three-dim ensional electrocardiographic signal needs to be acquired for a plurality of heart cycli in order to allow monitoring.
  • monitoring implies the possibility of com paring of data, and preferably the com parison of recently obtained three-dim ensional electrocardiographic signals with previously obtained three-dim ensional electrocardiographic signals, i.e.
  • said plurality of heart cycli comprises a large num ber of heart cycli. Therefore, in a preferred em bodim ent, said plurality of heart cycli comprises at least 1000 heart cycli, preferably at least 10000 heart cycli.
  • Figu re 1 shows a side view of a car driver in his seat and illustrates a system according to the present invention.
  • Figu re 2 illustrates the schem atics of a monitoring system and m ethod according to the present invention.
  • Figu res 3A-3 D show frontal views of a car seat with a monitoring system according to the present invention.
  • Figu re 4 shows a car seat in perspective with an indication where a plurality of sensors of the monitoring system according to the present invention can be located.
  • a com partment refers to one or more than one com partment.
  • “About” as used herein referring to a measurable value such as a param eter, an amount, a temporal duration, and the like, is meant to encom pass variations of + /- 20% or less, preferably + /- 1 0% or less, more preferably + /- 5% or less, even more preferably + /- 1 % or less, and still more preferably + /-0.1 % or less of and from the specified value, in so far such variations are appropriate to perform in the disclosed invention.
  • the value to which the modifier "about” refers is itself also specifically disclosed.
  • the term“car seat user” refers prim arily to the driver, but also refers to passengers in the vehicle.
  • the vehicle is a car, having 2 to 9 seats for occupants, including the driver’s seat.
  • the vehicle m ay also be another type suitable for human transportation, such as a bus, a touring car, an ambulance, a truck, etc.
  • the term“car seat” may in an em bodim ent refer not only to a seat for use in a car, but also to a seat for use in other types of vehicles for hum an transportation, such as a bus, a touring car, an am bulance, a truck, etc.
  • the electrocardiogram is a representative signal containing inform ation about the condition of the heart.
  • the shape and size of the P-QRS-T wave, the tim e intervals between its various peaks, m ay contain useful information about the nature of disease afflicting the heart.
  • these subtle details cannot always easily be monitored by the hum an observer.
  • these signals can be highly subjective, and the sym ptoms m ay appear at random in the time scale.
  • I t is very taxing, time-consum ing and in some cases even impossible to decipher cardiac abnormalities based on an ECG signal obtained with two or three electrodes.
  • the ECG is the process of recording the electrical activity of the heart over a period of time using electrodes placed on the skin. These electrodes detect the tiny electrical changes on the skin that arise from the heart m uscle's electrophysiologic pattern of depolarizing and repolarizing during each heartbeat.
  • the conventional 12-lead electrocardiogram (cECG) derived from 10 electrodes using a cardiograph is the gold standard for diagnosing myocardial ischem ia. I n a conventional 12-lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest.
  • the overall m agnitude of the heart's electrical potential is then m easured from twelve different angles ("leads") and is recorded over a period of time (usually ten seconds) . I n this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle.
  • the graph of voltage versus tim e produced by this noninvasive medical procedure is referred to as an electrocardiogram or ECG.
  • the CardioSecur system (as disclosed in e.g. WO 2018/060162 A1 ) , only requires 4 ECG- electrodes.
  • a proper positioning of the electrodes allows reconstruction of a vector ECG and a 12-lead ECG.
  • the EASI lead system which is based upon the vector loop of a vector ECG, allows calculation of the classic 12 ECG leads from this vector loop.
  • the EALI lead system is conventionally used with a 5-electrode setup, and has been found to allow a reasonably accurate reconstruction of a cECG.
  • the m ethod and system of the present invention uses at least 5 electrodes.
  • the ECG-electrodes refer to galvanic electrodes which need to contact the skin of the patient, and which are thus not very useful for integration in a car seat.
  • three-dim ensional electrocardiographic signal refers to an electrophysiological signal near the cardiac region and which contains three- dim ensional inform ation of cardiac electrical activity, in particular with regards to the depolarization vector.
  • a three-dimensional electrocardiographic signal principle allows reconstruction of a 3D depolarization vector in tim e.
  • vector electrocardiogram refers to an electrocardiogram ( ECG) which contains such 3D inform ation of cardiac electrical activity, wherein the depolarization vector is reconstructed.
  • ECG electrocardiogram
  • an ECG such as a cECG or a VECG
  • vector- ECG-type signal encom passes three-dimensional inform ation of the heart’s depolarization vector, whereby the vector- ECG-type signal can be obtained using contactless sensors.
  • the three-dim ensional electrocardiographic signal is a vector- ECG-type signal.
  • remote three-dimensional electrocardiographic technology including e.g. remote 12-lead ECG technology
  • heart attack e.g. atrial fibrillation
  • heart failure e.g. heart failure
  • stroke e.g. stroke
  • ventricular tachycardia e.g. ventricular tachycardia.
  • the estim ated number of patients in any of these groups is over 1 billion.
  • the present invention has the advantage that it allows to continually monitor ECG or ECG-like signals during longer periods which strengthens the robustness of interpretation and diagnostics of measurements when compared to short-term “instantaneous” m easurements performed during a doctor’s visit.
  • Many ECG determ ined phenom ena are only detectable with longer duration ECG m easurements.
  • the electrocardiogram remains the cornerstone of all cardiologic investigations. It indicates the health of the heart, the presence of rhythm disturbances, the potential ischem ic burden and m any other features that are im portant to a person’s health.
  • Electrocardiographic changes m ay indicate that something is about to happen to the patient under study. It can also m ean that som ething is already happening to the patient. Next to abnormal heart rhythms, ischem ic conditions of the heart can
  • a healthy heart During each heartbeat, a healthy heart has an orderly progression of depolarization that starts with pacem aker cells in the sinoatrial node, spreads out through the atrium , passes through the atrioventricular node into the bundle of His and into the Purkinje fibers, spreading down and to the left throughout the ventricles.
  • This orderly pattern of depolarization gives rise to the characteristic ECG tracing.
  • an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system .
  • an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any dam age to the heart's muscle cells or conduction system , the effects of cardiac drugs, and the function of im planted pacem akers.
  • said reference three-dimensional electrocardiographic signal of the car seat occupant is obtained using the system or m ethod of the present invention during an initial reference period.
  • the m ethod hereby comprises the further step of obtaining a car seat occupant I D and linking said car seat occupant I D to the stored reference three-dimensional electrocardiographic signal.
  • the latter step allows easy linking of three-dim ensional electrocardiographic signals obtained during a monitoring period to a stored reference three-dimensional electrocardiographic signal by identification of the car seat occupant.
  • Said identification can be done m tractly, e.g. at the start of the monitoring period, or autom atically whereby preferably the occupant is identified on the basis of a biometric feature obtained by the sensors, preferably on the basis of a three-dimensional electrocardiographic signal obtained for a first set of heart cycli.
  • a three-dim ensional electrocardiographic signal may not be uniquely attributable to a person, such as would be the case with e.g.
  • the num ber of different occupants which can be registered within the system of the present invention and preferably with a recorded reference three-dimensional electrocardiographic signal is typically lim ited to the number of fam ily m embers, which in most developed countries is on average between 4 and 5, and in most cases less than 1 0.
  • the m ethod comprises the step of signaling abnorm alities in the acquired three-dimensional electrocardiographic signal to the car seat occupant or a health carer.
  • abnorm alities may be obtained by com paring the three-dimensional electrocardiographic signals acquired during a monitoring period to the reference three-dimensional electrocardiographic signals.
  • the monitoring system can be configured to send out warnings to the car seat occupant, to health care providers in the proxim ity of the car, to the nearest hospital, etc.
  • the monitoring system m ay be configured to interact with a board com puter of the car to ensure that the car is safely stopped, e.g. by autom atically have the car be driven to the side of the street.
  • the monitoring system of the present invention is further illustrated in fig. 1 .
  • the figure shows an occupant of a car seat, i.c. the driver.
  • a num ber of contactless sensors are mounted into or near the car seat ( 1 ) :
  • 4 sensors (2a-2d) are integrated in the seat surface, near the upper side; 4 sensors (3a-3d) are integrated in the back rest of the car seat near the front side, i.e. in close proxim ity with the driver’s back;
  • 2 sensors (4a, 4b) are integrated in the right side of the back rest, preferably positioned near the surface oriented towards the right side of the driver.
  • two sensors can be integrated in the left side of the back rest, preferably positioned near the surface oriented towards the leftside of the driver;
  • the sensors in the car seat are positioned such that at least 4 sensors are non- planarly arranged.
  • the sensors are positioned in such a way that at least four non-planarly located sensors are in close proxim ity to the driver.
  • a processing unit ( 1 1 ) is configured to acquire electric signals from a set of sensors and is preferably configured to obtain at least a three- dim ensional electrocardiographic signal for a plurality of heart cycli from these electrical signals.
  • the processing unit ( PU) is connected to:
  • a first set of sensors ( 13a- 13f ) which are mounted into the backrest ( 12) of a car seat and which can be connected to the PU using a wired connection ( 14) ;
  • a second set of sensors ( 1 6a- 1 6d) which are mounted into the seat surface ( 15) of the car seat and which can be connected to the PU using a wired connection ( 1 7) ;
  • a third set of sensors ( 19a, 19b) which are mounted into the steering wheel ( 18) and can be connected to the PU using a wired connection (21 )
  • a fourth set of sensors (23a-23c) which are mounted in the foot pedals (22b, 22c) or in a resting location for a foot of a car seat occupant (22a) , e.g. the resting support for the left foot of a driver.
  • the sensors can be connected to the PU using a wired connection (24) .
  • the PU can further be connected to other com ponents of the vehicle (25) , such as a vehicle board computer.
  • the board computer can act as a PU being configured to obtain at least a three-dim ensional electrocardiographic signal for a plurality of heart cycli from the electrical signals obtained by the sensors.
  • the PU ( 1 1 ) may also comprise a wireless connection (26) allowing wireless com m unication with a storage and/or analysis system for transm itting the three-dimensional electrocardiographic signals and/or the raw sensor data to an external processing system .
  • the PU ( 1 1 ) may be configured to transm it the electrical signals to a second processing unit, and that this second processing unit is then configured to obtain at least a three-dimensional electrocardiographic signal for a plurality of heart cycli from the electrical signals.
  • Pre-processing m may be performed in dedicated pre-processing units, such as
  • a pedal and/or a floor pre-processing unit (29) for the signals obtained from pedal sensors (23b, 23c) and/or floor sensors (23a) .
  • one or more sensors m ay also be placed in a safety belt associated with the car seat and/or in the gear stick, each of which m ay be connected to the processing unit and/or an associated pre-processing unit.
  • Figures 3A-3D show frontal views of a car seat with indication of the positioning of sensors within the car seat such that at least four sensors are positioned non-planarly.
  • three sensors 31 a, 31 b, 31 c
  • a fourth sensor 31 d is located in the seat surface of the car seat.
  • two sensors (32a, 32b) are located in the back rest of the car seat in an essentially left-to-right orientation
  • two other sensors (32c, 32d) are located in the seat surface of the car seat in a front-to-back orientation
  • two sensors (33a, 33b) are located in the back rest of the car seat in an essentially vertical orientation
  • two other sensors (33c, 33d) are located in the seat surface of the car seat in a left-to-right orientation.
  • the embodiment in fig. 3D is som ewhat different from the embodiments in figs. 3A-3C in that a large num ber of sensors are mounted on or in the car seat:
  • a first set of 6 sensors (34a) is positioned in the head rest
  • a second set of 5 sensors (34b) is positioned in the upper part of the back rest;
  • a third set of 19 sensors (34c) is positioned in a cross-shaped arrangement in the m iddle and lower part of the back rest;
  • a fourth set of 7 sensors (34d) is positioned in the left side support of the car seat ;
  • a fifth set of 7 sensors (34e) is positioned in the right side support of the car seat, and
  • a sixth set of 12 sensors (34f) is positioned in the seat surface of the car seat. Note that when the monitoring m ethod is perform ed, the position of all sensors is basically known upfront when configuring the processing unit, whereby the configuration takes into account that the signals of at least 4 non-planar sensors are used to obtain at least a three-dim ensional electrocardiographic signal.
  • sensors (41 ) are located in a regular or sem i-regular pattern over the car seat at or near the surface facing the car seat occupant.
  • I n a preferred em bodim ent, at least one contactless sensor, and preferably said at least four non-planar contactless sensors, is a non-contact solid state electric potential sensor configured to detect a change in electric potential in a nearby object.
  • At least one sensor and preferably at least said 4 non-planar sensors is an electrodynam ic sensor com prising a high input im pedance electrom eter adapted to m easure sm all electrical potentials originating from an object under test and having a pair of input probes, whereby at least one of said pair of input probes has no direct electrical contact with said object, wherein the circuit arrangement of said electrom eter com prises an am plifier which includes a com bination of ancillary circuits cum ulatively to increase the sensitivity of said electrom eter to said sm all electrical potentials whilst not perturbing the electrical field associated therewith.
  • I n a more preferred em bodim ent, at least one sensor and preferably at least said 4 non- planarly located sensors, is an electrodynam ic sensor comprising a pair of input probes for detecting sm all electrical potentials originating from an object under test and for generating detection signals, and an high input im pedance electrom eter comprising an amplifier arranged to receive the detection signals and provide measurement signals, said probe being configured to detect electric displacement current and comprises an electrode substrate having thereon a thin film of insulating material.
  • the senor further com prises a do input bias arrangem ent for providing a steady input bias current for the am plifier and to ensure a stable DC operating point, a do to low frequency negative feedback loop which takes amplified measurement signals, removes signal frequencies and feeds a low-pass filtered, stabilising signal into the input bias arrangem ent, a guard circuit providing a shield surrounding said electrode substrate and input wiring for said one probe, said guard circuit being driven by the output of said amplifier and being arranged to m aintain the sam e potential on said probe as on said shield, and a feedback arrangem ent providing bootstrapping, of a biasing resistor and neutralisation by introducing the output signal to the input via a capacitor, said guard circuit, bootstrapping and neutralisation acting cum ulatively to increase the sensitivity of said electrom eter to said small electrical potentials whilst not perturbing the electrical field associated therewith.
  • a do input bias arrangem ent for providing a steady input bias current for the am plifier and
  • the sensors of the present invention com prise a sensor arrangement comprising:
  • a sensor element for detecting signals received from the detection element and for producing a measurem ent signal as output, the sensor element having an input and an output, the detection element being connected to the input; a feedback path from the output to the input of the sensor elem ent ;
  • a filter in the feedback path comprising a narrow band filter; and means for controlling the frequency response of the filter, whereby to tune the frequency response respectively to detection signals that are wanted signals and/or to signals that represent interference signals; wherein the sensor elem ent and the filter are arranged to co-operate so as to alter the relative amplitudes of the wanted signals and the interference signals in order to increase the relative amplitude of the wanted signals and reduce the relative amplitude of the interference signals.
  • the sensors of the present invention com prise a sensor arrangem ent com prising:
  • a high impedance electrom eter including a detection elem ent for detecting electrical potentials from an object under test and for generating electrical detection signals, and
  • an am plifier connected to the detection elem ent for receiving the electrical detection signals from the detection elem ent and for producing an am plified measurem ent signal as output
  • the amplifier having at least one ancillary circuit providing a positive feedback arrangement for enhancing the sensitivity of the electrometer to the detected electrical potentials, the at least one ancillary circuit including a bootstrapping circuit for providing bootstrapping to an input bias resistor for the amplifier,
  • the amplifier further has an additional feedback arrangement for controlling the sensitivity of the electrometer to signals of different frequencies in order to tailor the frequency response of the electrom eter, the additional feedback arrangement comprising a feedback path from an output to an input of the amplifier and a narrow band filter situated in the feedback path of the additional feedback arrangem ent and tuning m eans for tuning the filter to a selected frequency or frequencies, whereby to tune the frequency response of the electrom eter with respect to the detection signals generated by an object under test and unwanted signals representing interference so as to increase the amplitude of the detection signals relative to the amplitude of the unwanted interference signals in order to increase the effective dynam ic range of the sensor.
  • Such sensor is described as a sensor arrangement in patent document W0200901 0735A1 .

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  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

Abstract

La présente invention concerne un procédé et un système de surveillance de la santé d'un occupant de siège de voiture, le procédé comprenant l'obtention d'au moins un signal électrocardiographique tridimensionnel pour une pluralité de cycles cardiaques à partir de signaux électriques acquis à partir d'au moins 4 capteurs de potentiel de peau sans contact situés de manière non plane montés dans ou à proximité d'un siège de voiture de l'occupant.
PCT/EP2018/062621 2018-05-15 2018-05-15 Système de surveillance cardiaque pour occupants de siège de voiture Ceased WO2019219178A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/EP2018/062621 WO2019219178A1 (fr) 2018-05-15 2018-05-15 Système de surveillance cardiaque pour occupants de siège de voiture

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PCT/EP2018/062621 WO2019219178A1 (fr) 2018-05-15 2018-05-15 Système de surveillance cardiaque pour occupants de siège de voiture

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003048789A2 (fr) 2001-12-07 2003-06-12 Clark Terence D Capteurs electrodynamiques et applications associees
WO2009010735A1 (fr) 2007-07-19 2009-01-22 University Of Sussex Système et procédé de détection
US8725311B1 (en) 2011-03-14 2014-05-13 American Vehicular Sciences, LLC Driver health and fatigue monitoring system and method
WO2015127193A1 (fr) * 2014-02-20 2015-08-27 Faurecia Automotive Seating, Llc. Siège de véhicule comprenant des capteurs intégrés
US20160015286A1 (en) * 2014-07-16 2016-01-21 University Of South Florida Integrated vectorcardiogram system and method of use
WO2016077790A1 (fr) * 2014-11-14 2016-05-19 Beth Israel Deaconess Medical Center, Inc. Procédé et système permettant de déceler des anomalies inapparentes de la conduction afin d'identifier un risque de tachycardie ventriculaire
WO2018060162A1 (fr) 2016-09-28 2018-04-05 Personal Medsystems Gmbh Surveillance de signaux biologiques, en particulier d'électrocardiogrammes

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003048789A2 (fr) 2001-12-07 2003-06-12 Clark Terence D Capteurs electrodynamiques et applications associees
WO2009010735A1 (fr) 2007-07-19 2009-01-22 University Of Sussex Système et procédé de détection
US8725311B1 (en) 2011-03-14 2014-05-13 American Vehicular Sciences, LLC Driver health and fatigue monitoring system and method
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