WO2004098401A1 - Systeme de controle et d'alerte pour couche-culotte, module de controle et couche-culotte electronique - Google Patents

Systeme de controle et d'alerte pour couche-culotte, module de controle et couche-culotte electronique Download PDF

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Publication number
WO2004098401A1
WO2004098401A1 PCT/IB2004/001457 IB2004001457W WO2004098401A1 WO 2004098401 A1 WO2004098401 A1 WO 2004098401A1 IB 2004001457 W IB2004001457 W IB 2004001457W WO 2004098401 A1 WO2004098401 A1 WO 2004098401A1
Authority
WO
WIPO (PCT)
Prior art keywords
diaper
individual
informing
sensing means
monitoring module
Prior art date
Application number
PCT/IB2004/001457
Other languages
English (en)
Inventor
Olaf Such
Josef Lauter
Harald Reiter
Ralf Schmidt
Andras Montvay
Jens MÜHLSTEFF
Original Assignee
Philips Intellectual Property & Standards Gmbh
Koninklijke Philips Electronics 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.)
Filing date
Publication date
Application filed by Philips Intellectual Property & Standards Gmbh, Koninklijke Philips Electronics N. V. filed Critical Philips Intellectual Property & Standards Gmbh
Publication of WO2004098401A1 publication Critical patent/WO2004098401A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/024—Detecting, measuring or recording pulse rate or heart rate
    • A61B5/0245—Detecting, measuring or recording pulse rate or heart rate by using sensing means generating electric signals, i.e. ECG signals
    • A61B5/02455—Detecting, measuring or recording pulse rate or heart rate by using sensing means generating electric signals, i.e. ECG signals provided with high/low alarm devices
    • 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
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
    • A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
    • A61B5/282—Holders for multiple electrodes

Definitions

  • a diaper-based monitoring and informing system a monitoring module and an electronic diaper
  • the invention relates to a diaper-based monitoring and informing system arranged to monitor a vital sign of an individual wearing the diaper and to inform a remotely arranged caregiver upon an abnormal health condition of the individual, said monitoring and informing system comprising a diaper and a monitoring module carried by said diaper.
  • the invention further relates to a monitoring module conceived to be carried by a diaper arranged to be worn by an individual, said monitoring module being arranged to monitor a vital sign of the individual.
  • the invention still further relates to an electronic diaper arranged to monitor a vital sign of an individual wearing the diaper.
  • the known monitoring and informing system is arranged to monitor a respiration rate, a body temperature and a crying condition of an infant wearing the diaper.
  • the known monitoring and informing system comprises a sensing means located on a waist portion of the diaper worn by the infant, said sensing means comprising a plurality of meters, namely a pressure sensor, a thermometer and a microphone.
  • the corresponding inputs of the meters are converted into suitable electrical signals, which are transmitted to a remotely arranged unit for purposes of signal analysis. In case it is found that any of the meters has detected an abnormal infant condition, a specific alarm to a remotely arranged caregiver is generated.
  • the monitoring and informing system comprises: sensing means arranged to make a contact with an individual's body, said sensing means being further arranged to measure an electrical signal propagating in said body, said electrical signal being representative of said sign; analysis means arranged to analyze said electrical signal in order to determine a health-related parameter, said analysis means being further arranged to actuate an informing means upon an event the health-related parameter reaches a predetermined value.
  • the technical measure of the invention is based on the insight that main vital signs of an individual, like a cardiac activity and a respiration rate can successfully be assessed by measuring a corresponding electrical signal.
  • the suitable electrical signal is an electrocardiogram.
  • the respiration rate is obtainable from a body impedance measurement. The method of obtaining the respiration rate from the body impedance measurement is known for people skilled in the art of ECG.
  • the measured electrical signal is made available to the analysis means.
  • the analysis means comprises a processor arranged to determine a health-related parameter from the measured electrical signal.
  • a suitable health-related parameter is a heart rate.
  • a suitable health-related parameter is a respiration rate.
  • the analysis means further comprises suitable means arranged to compare an actual health-related parameter with a pre-stored predetermined value.
  • the pre-stored predetermined value is stored in a look-up table of a memory unit of the processor.
  • the analysis means actuate the informing means in order to warn a remotely arranged caregiver about an abnormal condition of the individual.
  • the informing means are remotely arranged from the monitoring and informing system, a communication between the informing means and the monitoring and informing system being enabled by means of a wireless communication.
  • the informing means can comprise a stationary unit, which is connected to the monitoring and informing system by means of a suitable cabling.
  • said system further comprises informing means actuatable by the analysis means, said informing means being arranged to warn the remotely arranged caregiver about the event the health-related parameter of the individual reached the predetermined value.
  • the informing means are arranged to sound an alarm, for example a siren or the like, or to actuate a suitable optical warning, like an emergency light.
  • the informing means are preferably arranged with a suitable user interface, like a loud speaker, or a light source.
  • the user interface can comprise a screen where next to a perceptive signaling to the caregiver a textual back-up on the individual's health condition is given. In this case, also measures to be undertaken by the caregiver are preferably shown on the screen.
  • the user interface comprises an RF-receiver. It is found to be particular advantageous to use a radio frequency range to enable a wireless communication between the analysis means and the informing means.
  • the RF-receiver comprises a mobile phone. It is found to be particular advantageous to use the functional possibilities of contemporary mobile telephone units for purposes of warning the remotely located caregivers about the abnormal health condition of the individual. It is also possible to send a textual message in form of an SMS- message to the corresponding mobile telephony unit of the caregiver, said message comprising the necessary steps to be undertaken by the caregiver in order to cope with the abnormal condition of the individual.
  • the sensing means are integrated into a material of the diaper in a waist portion of the diaper.
  • This technical measure is based on the insight that for purposes of a heart-rate monitoring it is sufficient to use a limited number of electrodes, for example two, the electrodes being located in a waist area of the individual.
  • the electrodes are manufactured of conductive foils, which are printed, laminated, glued, spray coated or are integrated with the diaper's material in any other suitable way.
  • the electrodes can be made of conductive textile a paint.
  • conductive rubber or plastic are suitable for usage as electrode materials.
  • a convenient disposable monitoring means is provided. It is also possible to locate the sensing means in a leg portion of the diaper. In this embodiment an improved contact with the individual's skin is achieved, thus improving a signal to noise ratio of the measured electrical signal.
  • a contact surface of the sensing means comprises projections which still further improve the contact between the electrodes and the individual's skin. It is advantageous to provide the sensing means with an integrated pre-amplifier to ensure a good quality of the measured electrical signal.
  • the monitoring module comprises: sensing means arranged to make a contact with an individual's body, said sensing means being further arranged to measure an electrical signal propagating in said body, said electrical signal being representative of said sign; - analysis means arranged to analyze said electrical signal in order to determine a health-related parameter, said analysis means being further arranged to actuate an informing means upon an event the health-related parameter exceeds a predetermined threshold.
  • the monitoring module comprises informing means actuatable by the analysis means in order to warn the remotely arranged caregiver about the event the health-related parameter of the individual reaches the predetermined value.
  • a suitable informing means is a mobile phone, a baby-phone or the like, said units being suitably arranged to communicate with the analysis means of the monitoring module.
  • the informing means with a user interface arranged to generate a perceptible signal to the caregiver in case the individual has an abnormal health condition.
  • the user interface is arranged to present a textual message to the caregiver, preferably comprising steps to be undertalcen in order to reduce potentially harmful effects of said abnormal condition.
  • the electronic diaper according to the invention comprises sensing means arranged to make a contact with an individual's body, said sensing means being further arranged to measure an electrical signal propagating in said body, said electrical signal being representative of said sign. It is found to be particular advantageous to provide a diaper with integrated sensing means which improves a signal quality in comparison to systems where the sensing means are mechanically attached to the diaper. By providing the sensing means arranged for measuring an electrical signal propagating in the individual's body, a reliable monitoring system is enabled.
  • the sensing means is preferably arranged on a waist portion or on a leg portion of the diaper as in these body areas the electrical signal propagating in the individual's body is measurable.
  • the sensing means is preferably provided with a preamplifier.
  • a contact surface of the sensing means is preferably arranged with projections which reduce a movement artifact improving the signal quality.
  • Fig. 1 presents in a schematic way an overview of an embodiment of the monitoring and informing system according to the invention.
  • Fig. 2 presents in a schematic way an embodiment of the electrodes with projections suitable for use in the monitoring and informing system according to the invention.
  • Fig. 3 presents in a schematic view an embodiment of the monitoring module according to the invention comprising front-end electronics.
  • Fig. 1 presents in a schematic way an overview of an embodiment of the monitoring and informing system according to the invention.
  • the monitoring and informing system 1 comprises a diaper 10 and a monitoring module 15 arranged to monitor a vital sign of the individual wearing the diaper 10.
  • the diaper 10 is shown in an unfolded way, depicting an inner side of the diaper.
  • the inner side of the diaper has a front area 11, a back area 12 separated from the front area 11 by an imaginary line 13.
  • the front area has a waist portion 14.
  • a diaper fastening mechanism 16a, 16b is preferably located on the back area 12.
  • the diaper fastening mechanism 16a, 16b uses a Velcro band.
  • the electrodes 20 make contact with the individual's body.
  • the electrodes are manufactured of conductive foils, which are printed, laminated, glued, spray coated or are integrated with the diaper's material in any other suitable way.
  • the electrodes can be made of conductive textile, paint, rubber, plastic or any other suitable conductive material.
  • a surface of the electrodes 20 conceived to make contact with the individual's skin comprises projections in order to reduce a movement artifact in the measured electrical signal.
  • An example of a suitable projection is discussed with reference to Fig. 2.
  • the measured signals from the electrodes 20 are forwarded to the front-end electronics 40 by means of wiring 30.
  • the front-end electronics 40 comprises an input amplifier 41, a band-pass filter 42 at output of which a good quality electrical signal 43 representing a monitored physiological condition is produced.
  • a characteristic ECG-spectrum is shown.
  • the front-end electronics further comprises a micro-processor 45, the input signal 43 thereto being pre-digitized by an analogue-to-digital converter 44.
  • a transmission unit 46 the informing means 50.
  • the informing means 50 is an RF-unit comprising a user-interface 52.
  • the user-interface can have a light source 52a, for example a light emitting diode or any other suitable light source, or a loud speaker 52b arranged for sounding a warning alarm.
  • the informing means are arranged with a screen to load textual information, comprising for example necessary steps to be undertalcen by the caregiver.
  • a suitable textual messages are generated by the microprocessor 45.
  • a list of messages corresponding to a plurality of alarm situations is stored in a memory unit of the microprocessor 45. For example, in case the health-related parameter has reached a value corresponding to an anxiety of the individual, for example a crying baby, a message 'Please check on your baby' in highlighted on a screen 52c of the user-interface 52. In case a severe health condition has occurred, a message 'call an ambulance' is generated on the screen 52c.
  • Fig. 2 presents in a schematic way an embodiment of the electrodes with projections suitable for use in the monitoring and informing system according to the invention.
  • Fig. 2 shows an isomeric view of a section of a diaper 10 with an electrode 20 integrated on a inner side of a front area 11 of the diaper.
  • the front area 11 has a waist portion 14 and an imaginative 13 separating it from a back area (not shown).
  • the electrode body 20 comprises a contact surface 20a conceived to enable a contact with the individual's skin which is provided with a number of projections 22 to engage to the skin.
  • the actual surface area of the electrode is reduced, while being spatially distributed over a substantial total area. It is found that in such an arrangement a very low pressure is sufficient to keep the electrode in a constant contact with the skin.
  • the electrode body 20 is manufactured from an elastic material, for example a conductive rubber, the projections 22 thus exhibiting a certain degree of resiliency in two orthogonal directions in a horizontal plane. This ensures that even in cases when the electrode body 20 is subjected to minor translations with respect to the patient's skin due to individual's movements, the tips of the projections 22 stay substantially at the same place, thus reducing the movement artifacts.
  • the projections can be provided with metal particles of can be fully coated with a metal layer.
  • the use of Ag is preferable as it is found that Ag enables a good s in contact.
  • a rubber material can be loaded with carbon particles to make it conductive.
  • Preferably a voluminous conductivity is achieved.
  • the resulting electrode is wear proof.
  • a usage of wealdy conductive or capacitively coupled electrodes is possible. It is also possible to provide holes 23 in the electrode body 20 in the areas between the projections 22 in order to remove accumulated sweat from beneath the electrodes in order to minimize a possible skin irritation.
  • the electrode 20 is provided with a suitable wiring 30 to provide an electrical contact with a battery unit (not shown) and the analysis means (not shown) of the monitoring module.
  • Fig. 3 presents in a schematic view an embodiment of the front-end electronics of the monitoring and informing system according to the invention.
  • the front-end electronics 40 is suitable to be used in a diaper (not shown) and is arranged to receive electrical signals measured by suitable sensing means 21, attached to the diaper or integrated thereon.
  • the sensing means 21 comprise electrodes 20 which are arranged to monitor a vital sign of the individual by means of measuring an electrical signal representative to said sign.
  • the sensing means 21 can additionally comprise a further sensor 22 arranged to measure a body temperature, a pressure or a movement or any other suitable vital sign. The readings of the pressure sensor can be used to validate the reading of the sensor 20.
  • the pressure sensor detecting that the individual breathes can send a signal to the micro-processor of the front-end electronics to discard the readings of the ECG sensor.
  • the sensing means 21 are preferably arranged to perform a continuous monitoring of the vital sign of the individual and is further arranged to provide a corresponding signal, for example by means of a wire-less communication or by means of a suitable wiring, to the front-end electronics 40 of the system.
  • the front-end electronics 40 is arranged to analyze the signal from the sensing means 21.
  • the front-end electronics 40 comprises a data processing means 47 arranged to process the measured signal and to forward the processed signal to the analysis means 48.
  • the data processing means 47 comprises a preamplifier 41, an analogue processing circuit 42a and an ADC unit 44.
  • the data processing means 47 forwards the corresponding data to the analysis means 48, arranged to analyze said data in order to yield a health-related parameter.
  • the resulting data comprises an electrocardiogram.
  • the analysis means 48 is arranged to determine a corresponding heart-rate of the individual.
  • the resulting data comprises an inhalation-exhalation curve.
  • the analysis means 48 is arranged to determine the respiration rate of the individual. The determination of the corresponding rates can be done using a per se known computation algorithms (not shown). The determined health-related parameter is then written into a first look-up table 48a. The analysis means 48 is further arranged to compare said health-related parameter to a predetermined value, which is preferably stored in a second look-up table 48b.
  • the second look-up table 48b comprises a plurality of predetermined values. For example, a first predetermined value can be set to a condition of an anxiety of the individual, a second predetermined value can be set to a condition of a minor medical abnormality and a further predetermined value can be set to a condition of a medical emergency.
  • the look-up table 48b comprises a gradual conditioning of the health-related parameter, given, for example by an analytical expression.
  • the analysis means 48 detects that the health-related parameter reaches the predetermined value, it generates a trigger signal to actuate the transmission means 46.
  • the transmission means 46 receive the trigger signal and generate a suitable feedback to a remote caregiver by actuating an informing means 50 located at a remote location of the caregiver.
  • An example of a suitable feedback is a textual message 46a transmitted to a user-interface 52.
  • the user-interface can comprise a loud speaker (not shown) arranged to replay a prerecorded message or a musical tone.
  • the user interface can comprise an actuatable light source.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)

Abstract

Système (1) de contrôle et d'alerte pour couche-culotte, comportant un module de contrôle (15) monté sur la couche-culotte, ce système étant adapté pour contrôler un signe vital de l'individu portant la couche-culotte (10). Ce système (1) de contrôle et d'alerte pour couche-culotte comporte des moyens capteurs (20) adaptés pour mesurer un signal électrique (43) se propageant à l'intérieur du corps de l'individu. Le module de contrôle comporte une électronique frontale (40) possédant un moyen d'analyse adapté pour déterminer un paramètre représentatif de l'état de santé et pour actionner un moyen d'alerte (50) au cas où ledit paramètre dépasserait une valeur déterminée, de manière à signaler à un fournisseur de soins situé à distance un état anormal de la santé de l'individu. Le moyen d'alerte (50) comporte une interface utilisateur (52) comportant plusieurs moyens (52a, 52b, 52c) adaptés pour permettre un retour d'informations approprié vers le fournisseur de soins.
PCT/IB2004/001457 2003-05-08 2004-04-30 Systeme de controle et d'alerte pour couche-culotte, module de controle et couche-culotte electronique WO2004098401A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03101280.0 2003-05-08
EP03101280 2003-05-08

Publications (1)

Publication Number Publication Date
WO2004098401A1 true WO2004098401A1 (fr) 2004-11-18

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Application Number Title Priority Date Filing Date
PCT/IB2004/001457 WO2004098401A1 (fr) 2003-05-08 2004-04-30 Systeme de controle et d'alerte pour couche-culotte, module de controle et couche-culotte electronique

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WO (1) WO2004098401A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110313260A1 (en) * 2010-06-18 2011-12-22 Eulji University Industry Cooperation Diaper-type vital sign measuring apparatus
CN113784279A (zh) * 2005-08-12 2021-12-10 赛乐得科技(北京)有限公司 用于对内容递送进行优化的方法和系统

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4685466A (en) * 1985-01-29 1987-08-11 Rau Guenter Measuring sensor for the non-invasive detection of electro-physiological quantities
US5228449A (en) * 1991-01-22 1993-07-20 Athanasios G. Christ System and method for detecting out-of-hospital cardiac emergencies and summoning emergency assistance
WO2001000117A2 (fr) * 1999-06-29 2001-01-04 The Procter & Gamble Company Article jetable a capteur de detection d'elimination imminente de dejections
DE19939902A1 (de) * 1999-08-22 2001-03-01 Hans Schreiber Windel
WO2002013672A2 (fr) * 2000-08-16 2002-02-21 Nizan Yaniv Applications de la technique de bioretroaction
US20020057202A1 (en) 2000-10-26 2002-05-16 2Spot. Com Ltd. Infant monitoring system
US20020109595A1 (en) * 2001-02-09 2002-08-15 Jerry Cairo Personal alert device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4685466A (en) * 1985-01-29 1987-08-11 Rau Guenter Measuring sensor for the non-invasive detection of electro-physiological quantities
US5228449A (en) * 1991-01-22 1993-07-20 Athanasios G. Christ System and method for detecting out-of-hospital cardiac emergencies and summoning emergency assistance
WO2001000117A2 (fr) * 1999-06-29 2001-01-04 The Procter & Gamble Company Article jetable a capteur de detection d'elimination imminente de dejections
DE19939902A1 (de) * 1999-08-22 2001-03-01 Hans Schreiber Windel
WO2002013672A2 (fr) * 2000-08-16 2002-02-21 Nizan Yaniv Applications de la technique de bioretroaction
US20020057202A1 (en) 2000-10-26 2002-05-16 2Spot. Com Ltd. Infant monitoring system
US20020109595A1 (en) * 2001-02-09 2002-08-15 Jerry Cairo Personal alert device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113784279A (zh) * 2005-08-12 2021-12-10 赛乐得科技(北京)有限公司 用于对内容递送进行优化的方法和系统
CN114666724A (zh) * 2005-08-12 2022-06-24 赛乐得科技(北京)有限公司 用于对内容递送进行优化的方法和系统
US20110313260A1 (en) * 2010-06-18 2011-12-22 Eulji University Industry Cooperation Diaper-type vital sign measuring apparatus

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