WO2017089986A1 - Moniteur de signaux vitaux portable avec interconnexion - Google Patents

Moniteur de signaux vitaux portable avec interconnexion Download PDF

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Publication number
WO2017089986A1
WO2017089986A1 PCT/IB2016/057107 IB2016057107W WO2017089986A1 WO 2017089986 A1 WO2017089986 A1 WO 2017089986A1 IB 2016057107 W IB2016057107 W IB 2016057107W WO 2017089986 A1 WO2017089986 A1 WO 2017089986A1
Authority
WO
WIPO (PCT)
Prior art keywords
vital signs
information
measurement system
signs measurement
patient
Prior art date
Application number
PCT/IB2016/057107
Other languages
English (en)
Spanish (es)
Inventor
Alher Mauricio HERNÁNDEZ VALDIVIESO
Fabián Andrés CASTAÑO ÚSUGA
Original Assignee
Universidad De Antioquia
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 Universidad De Antioquia filed Critical Universidad De Antioquia
Publication of WO2017089986A1 publication Critical patent/WO2017089986A1/fr

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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
    • 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
    • A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
    • 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
    • A61B5/291—Bioelectric electrodes therefor specially adapted for particular uses for electroencephalography [EEG]

Definitions

  • the present invention is related to the field of tele-medicine, more specifically with the wearable sensing of physiological variables and the transmission of these as support or aid in the diagnosis and monitoring of the patient, and more specifically with a device with the ability to share information with others of the same type in order to establish a network of users who know their physiological status with each other.
  • US 5749365 A discloses a method for monitoring vital signs of a human or animal being, which can be placed on the subject's clothing and can be an elastically deformable shirt, positioning a sensor so adjacent to the thoracic and abdominal region.
  • the sensing system detects the elastic deformations of the shirt or shirt, which are processed and taken as the measurements of the vital signs registered by the system, which include respiratory rate, heart rate and body temperature, in addition to this wirelessly transmits some measurement data to a remote receiver to store this information.
  • NIBP non-invasive blood pressure
  • ECG electrocardiography
  • SP02 oxygen saturation
  • US 2007083096 A1 discloses a non-invasive monitoring method through a wearable system for monitoring vital signs of cardiovascular, respiratory systems and an index of movement.
  • the system performs the acquisition and transmission of the signals captured wirelessly, the system performs the capture of the electrocardiogram (ECG) signal in addition to the capture of the respiratory rate and some movements of the user by means of piezoresistive sensors located in The thoracic and abdominal area using the impedance measurement method, in addition to this, the system sends the captured signals to external hardware wirelessly, which has the ability to retransmit the information to a remote system for the subsequent visualization of the information.
  • ECG electrocardiogram
  • the system does not contemplate the use of sensors for the measurement of NIBP or SP02, in addition to this, it is limited by the need for external hardware for the transmission of data to other devices in which it can be processed, stored and View this information.
  • US 6102856 A discloses a vital signs monitoring device, which comprises a portable unit that has a plurality of sensors to continuously detect vital signs and perform an analysis of them, the system consists of a belt that is placed around the chest and under the clothes and has sensors for the measurement of ECG, heart rate and respiratory rate, in addition to this the system allows to transmit the information to a central station in which the captured data is stored.
  • a vital signs monitoring device which comprises a portable unit that has a plurality of sensors to continuously detect vital signs and perform an analysis of them, the system consists of a belt that is placed around the chest and under the clothes and has sensors for the measurement of ECG, heart rate and respiratory rate, in addition to this the system allows to transmit the information to a central station in which the captured data is stored.
  • a belt that surrounds the chest it is not possible to perform the NIBP or SP02 measurement, in addition to the fact that the location of the ECG electrodes makes it difficult to acquire signals with the expected morphology to make an appropriate diagnosis.
  • WO201 1094819 A1 describes a system monitoring system for the management and collection of environmental and physiological data associated with a subject.
  • the system includes a garment, that is, a shirt, with a plurality of sensors, for example, pressure sensors, a heart rate sensor, a temperature sensor, a voltage indicator and electronic module, wherein said module electronic contains a transmitter location module. Sensor data and location information are communicated through the transmitter to the central unit or base station for further processing.
  • this system performs a wireless communication between sensors and an information hub forming a PAN network as defined by the IEEE 802.15.4 standard, however, it does not show the ability to be used with a network of devices.
  • the vital signs measured not Performs oxygen saturation measurement.
  • another difference is that said system is in a harness.
  • document US2002013538 A1 discloses a monitoring system for health signs or vital signs that provides reliable monitoring of health signs to indicate emergency problems or specific conditions.
  • said document provides a method for monitoring the health signs of an individual, including the steps of detecting at least one characteristic sign of the individual's health with a sensor unit that is close to the individual; produce a health signal from the sensor unit that indicates at least one sign of the individual's health; communicate the individual's health signal to a reception unit via a wireless connection; process the health signal to determine if there is an emergency situation; and provide an indication of an emergency condition to a destination node of a network, in which the electric power operation is applied to the receiving unit in an initialization mode, the receiving unit determines whether the receiving unit has received a identification signal of the sensor unit, and receives a health signal only from a sensor unit that has the received identification signal.
  • the vital signs monitoring system is not in the form of a garment and does not show the network of users who receive the information taken from the device.
  • document US2007265533 A1 refers to a heart monitoring system for a person, which includes one or more wireless nodes that form a wireless network and a portable device having a sound transducer coupled to the wireless transceiver ; and a heart disease recognizer next to the sound transducer to determine cardiovascular health and to transmit heart sound over the wireless network to a remote listener or processor.
  • the processor can execute a voice over IP (VOIP) code to allow a user and a remote person to communicate audibly with each other.
  • VOIP voice over IP
  • said heart monitoring system is not incorporated or in the form of a wearable garment, nor does it comprise a network of users who receive the information taken from the device.
  • the pressure parameter is measured by means of an auscultatory method.
  • the present invention relates to a wearable electronic device, which used by a patient, allows to register some of the most important physiological variables of the organism and which are considered vital signs, in order to serve as support in the diagnosis and monitoring of your state
  • This device makes it easier for the medical specialist to effectively diagnose the patient and a group of technology users, to be aware of the physiological state of others.
  • This device is aimed at creating a network of users who can be aware of the health status of others and set alarms to constantly monitor the events that occur during the use of the device.
  • the device consists of three components, namely: sensors strategically located in the garment, processing unit and information integration and transmission system. The sensors are connected to the processing unit and said unit is connected to the information integration and transmission system.
  • the information of the sensors is processed and conditioned by the different sensing modules, subsequently transmitted to a central processing unit that in turn transmits it wirelessly to a mobile device or to a web server in which all User information and can be viewed from a PC for further evaluation of this information.
  • a central processing unit that in turn transmits it wirelessly to a mobile device or to a web server in which all User information and can be viewed from a PC for further evaluation of this information.
  • the physiological signal sensing and conditioning unit has the necessary instrumentation to reduce artifacts in measurements, however, as an additional strategy for artifact reduction, the different sensors have been located in specific positions that also They allow redundant measurements.
  • ECG a distribution corresponding to the Einthoven triangle covering the thorax and abdomen is used, in addition, there is a second electrode distribution for the measurement of ECG in the back, so that when recording the electrical activity with In both configurations, a version of electrocardiography less affected by artifacts is obtained.
  • the oxygen saturation measurement there is a reflective sensor in the wrist area to perform the measurement of the plethysmographic signal, without the need to access the patient's finger permanently, avoiding the uncomfortable use of A clamp for measurement.
  • the measurement method uses two insufflation cuffs, one on each arm, located proximal to the shoulder and 2.5 cm from the arm and forearm fold, in order to reduce the occlusion time of each arm and reduce the appearance of artifacts in the measurement.
  • the patient's movement is sensed by means of a bracelet that includes a three-dimensional accelerometer, a gyroscope and a magnetometer. Motion information is also used to eliminate motion artifacts in oxygen saturation and blood pressure measurements.
  • Each sensing module has an independent operation, which gives versatility to the vital signs monitor since it is possible to replace any module in case of malfunction without the need to completely replace the device.
  • the integration and transmission system receives the information processed by each of the sensing modules, after this it performs an organization of the information and an encryption of it before transmitting it wirelessly, this in order to ensure the confidentiality of the information contained in the data packets that are sent wirelessly.
  • the information of each device is available on a web server, which allows that information can be accessed from mobile devices and that the information is known by other users.
  • the device proposed in this document will allow to transmit and know the information of vital signs of a user to others, linked to a computer application, the device allows to configure groups of users, publication of trends and alarm configuration. In addition, based on the IP address of each device it is possible to know the geographical location of each user.
  • a method for measuring vital signs of a patient characterized in that it comprises: a) sensing the vital signs of a patient; b) process the sensed information; c) organize the sensible information; d) encrypt the sensed information; e) transmit the sensed information to a mobile device or a web server; and f) transmit the sensed information to a network of users.
  • Figure 1 System components.
  • Figure 2 Modules that make up the processing unit.
  • Figure 4 Detail of the SP02 measurement module.
  • Figure 5 Detail of the NIBP measurement module.
  • Electrodes in the user's chest [0047] (212) Electrodes on the user's back
  • This invention seeks to solve the problem of continuous monitoring in home care and assistance, allowing access to both healthcare personnel and those to whom the user wants to give access to their clinical information and vital signs.
  • the device has spatially distributed sensors in the garment and with the possibility of performing redundant measurements and measurement methods aimed at reducing the motion artifacts present in the measured physiological variables (ECG, SP02, NIBP) allowing a more accurate measurement and thus helping to obtain a better diagnosis by healthcare personnel.
  • the device transmits all the information collected to a server through the use of internet protocols through the use of specialized hardware with the IEEE 802.15.4 wireless data transmission protocol (see Figure 2), which is located located in the user's abdomen in such a way that it does not interfere with their mobility or the performance of their daily activities.
  • the device has the ability to use the bluetooth protocol through which it can generate multiple point-to-point connections (P2P) with different mobile devices.
  • P2P point-to-point connections
  • the device For NIBP measurement, the device has a bracelet on each arm (see Figure 5), in the same way, by means of digital signal processing, the information captured by both sensors is processed to obtain a more accurate measurement pressure when conditions require it.
  • the measurement of SP02 is performed with multiple sensors, the first one is located on the wrist of the user as a bracelet (see Figure 4), which is accompanied by an acceleration sensor, which captures the movement of the patient
  • the motion artifact present in the plethysmography signal is adaptively filtered and greater accuracy is obtained in measuring the percentage of blood oxygen saturation.
  • a second alternative for measuring SP02 is possible near the chest (see Figure 4), where the user can perform an oxygen saturation measurement when the specialist or the user demands it, so that the user inserts his fingers into the compartment consisting of three thimbles to obtain this measurement.
  • the present invention addresses two problems clearly identified in commercially available systems and those reported in the literature and patent databases.
  • the available and described systems do not have a heterogeneous communication system which allows them to share the information obtained with different platforms for the storage of information for later analysis. Additionally, it is conceived as a wearable device that allows the sharing of vital signs information in private user networks or home hospitalization settings.
  • the present invention includes a processing unit with high computing performance and dedicated software for the processing of all information captured by the device, three vital signs sensing systems that include two groups of sensors for ECG measurement in thorax and back, two sensors for measuring SP02 including a three-dimensional accelerometer and a gyroscope, and two sensors for the measurement of non-invasive blood pressure NIBP; specialized hardware for the transmission of vital signs and / or physiological information of the patient wirelessly.
  • the information captured by accelerometer and gyro in addition to being useful for the removal of artifacts, provides information on the activity or falls of the patient.
  • An SP02 sensor that also includes a three-dimensional accelerometer and a gyroscope allows to process redundant information about the user's movement and correct the problem of interference in the signal due to the presence of motion artifacts. Since knowing the patient's movement can be processed and subtracted from the plethysmography signal.
  • ECG electrodes in the front and back of the chest allows two measurements of the electrical signals of the heart to be obtained, for later digital processing in search of the optimal signal in terms of signal-to-noise quality and free of artifacts.
  • the present invention solves the problems of home hospitalization, which currently require the use of bulky equipment that restricts patient mobility preventing it from developing daily activities that can support its rapid recovery, significantly improving the sensing of the parameters physiological of clinical interest, the diagnosis of the user by the care staff and the monitoring of their health status by relatives or close people. Additionally, with a strategic distribution of the sensors, it allows more accurate measurements to be obtained by reducing the presence of motion artifacts. Finally, the present invention allows the storage of all the sensed variables, which guarantees a total record of the patient's evolution, information that can also be integrated into a wide variety of mobile applications.
  • Figure 1 corresponds to an overview of the system and the different modules that compose it, such as: the central processing unit (100), the sensors that perform the measurement such as ECG electrodes (200), the SP02 sensors on chest and wrist (300), NIBP sensors (400) and wristbands with accelerometer and gyro (500).
  • the central processing unit 100
  • the sensors that perform the measurement such as ECG electrodes (200), the SP02 sensors on chest and wrist (300), NIBP sensors (400) and wristbands with accelerometer and gyro (500).
  • FIG 2 shows the different components of the central processing unit module (100).
  • This module consists of a housing composed of the covers (101 and 1 1 1) fastened with the screws (1 12).
  • the electronic card (104) processes the information received from the different sensing modules through the connectors (108-1 10), and is transmitted wirelessly, the unit has a battery-based power system with Linear technology (102, which is charged through a USB type communication port (103) that additionally transmits the information to the computer, and allows configuration parameters to be received.
  • the processing unit also has a power switch ( 105) in the unit housing
  • the electronic board is attached to the housing with the screws (106).
  • FIG 3 shows the different parts that make up the ECG sensing module (200).
  • This module consists of a housing composed of the covers (201 and 209) fastened with the screws (210).
  • the sheets (202 and 207) are 0.5 mm thick aluminum pieces that allow the ECG module electronic board to be shielded against electromagnetic interference.
  • the electronic card (204) performs the acquisition and processing of ECG.
  • the information captured by the module is transmitted to the processing system through the connector (206).
  • ECG sensors which consist of an array of three electrodes on the front of the user's chest (21 1) located on the left arm (LA), right arm (RA) and left leg (LL), and an arrangement of three sensors on the user's back (212) located in the same way in LA, RA and LL, it also has an electrode which serves for the right leg (RL) feedback circuit, all these electrodes are connected through cables High conductivity in the connector (205) on the ECG module card, the electronic card is attached to the housing with the screws (208).
  • FIG. 4 shows the different parts that make up the SP02 sensing module (300).
  • This module like the ECG measurement module, consists of a housing composed of the covers (301 and 309 ) fastened with screws (310).
  • the sheets (302 and 307) are 0.5 mm thick aluminum parts which allow shielding the electronic board of the SP02 module against electromagnetic interference.
  • the electronic card (304) performs the acquisition and processing of the SP02 and patient movement signals recorded by the accelerometer (312). The information captured by the module is transmitted to the processing system through the connector (306).
  • SP02 sensors are shown which are strategically placed one on the user's wrist (31 1) as a bracelet, accompanied of a three-dimensional acceleration sensor (312), and the other placed in the user's chest (313), in a cavity specially designed for the user to enter one, two or three fingers and perform the oxygen saturation measurement on demand.
  • ECG sensors these are connected to the SP02 measuring module by means of high conductivity cables in the connector (305) on the SP02 module card, the electronic card is attached to the housing with the screws ( 308).
  • FIG. 5 shows the different parts that make up the NIBP sensing module (300).
  • This module like the module for measuring ECG and SP02, consists of a housing composed of the covers (401 and 410) fastened with the screws (41 1).
  • the sheets (402 and 407) are aluminum pieces 0.5 mm thick that allow shielding the electronic card of the NIBP module against electromagnetic interference.
  • the electronic card (404) acquires and processes the pressure signals recorded by the sensors (405).
  • the information captured by the module is transmitted to the processing system through the connector (406), additionally the design of the pressure sensors is shown which are each made up of a bracelet (412) for occlusion of the blood vessels in The user's arm, in the upper part of the bracelet, was placed a housing (413 and 417) which is fastened by the screws (418).
  • a low-power electropneumatic pump for insufflation of the pressure cuff
  • a pneumatic solenoid valve (415), to release or retain air inside the pressure cuff
  • a pneumatic circuit (416) to carry the pressure signal to the sensors located in the NIBP module
  • the pump motor and the solenoid valve are connected to the NIBP module through low impedance cables and with the ability to withstand high demands of electrical current.
  • the pressure measurement is started optionally, by pressing the button (409), the electronic board is attached to the housing with the screws (308).

Abstract

L'invention concerne un système de mesure de signes vitaux portable qui, utilisé par un patient, permet d'enregistrer de manière continue l'état de celui-ci, effectuant la transmission des informations capturées de manière sans fil et en les stockant dans un serveur pour leur consultation et analyse ultérieure, permettant au médecin spécialiste d'effectuer un diagnostic plus précis de son patient, en outre, il permet la génération d'alarmes qui peuvent être visualisées par des personnes dans le cercle familial de l'utilisateur, de telle sorte que ceux-ci soutiennent le traitement correct et la récupération de l'utilisateur. Le dispositif a été conçu pour effectuer la mesure précise de certaines des variables physiologiques les plus importantes telles que l'électrocardiogramme, le pourcentage de saturation d'oxygène et la pression artérielle non invasive, avec le placement de capteurs de manière stratégique pour obtenir une réduction efficace du bruit produit par le mouvement du patient, permettant ainsi de mener une vie normale, et d'effectuer des activités quotidiennes pendant la surveillance.
PCT/IB2016/057107 2015-11-27 2016-11-24 Moniteur de signaux vitaux portable avec interconnexion WO2017089986A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CO15283324 2015-11-27
CO15283324 2015-11-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109009025A (zh) * 2018-08-10 2018-12-18 周霞 一种内科护理监护仪

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070083096A1 (en) * 2003-12-03 2007-04-12 Rita Paradiso Knitted textile for the monitoring of vital signals
US20120136231A1 (en) * 2006-07-25 2012-05-31 Gal Markel Wearable items providing physiological, environmental and situational parameter monitoring
WO2014145695A1 (fr) * 2013-03-15 2014-09-18 Peerbridge Health, Inc. Système et méthode de surveillance et de diagnostic d'une maladie chez un patient d'après la transmission de données émises par un capteur sans fil
WO2014197822A2 (fr) * 2013-06-06 2014-12-11 Tricord Holdings, L.L.C. Systèmes, kits et méthodes de surveillance physiologique modulaire
CA2941872A1 (fr) * 2014-03-10 2015-09-17 L.I.F.E. Corporation S.A. Vetements de surveillance physiologique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070083096A1 (en) * 2003-12-03 2007-04-12 Rita Paradiso Knitted textile for the monitoring of vital signals
US20120136231A1 (en) * 2006-07-25 2012-05-31 Gal Markel Wearable items providing physiological, environmental and situational parameter monitoring
WO2014145695A1 (fr) * 2013-03-15 2014-09-18 Peerbridge Health, Inc. Système et méthode de surveillance et de diagnostic d'une maladie chez un patient d'après la transmission de données émises par un capteur sans fil
WO2014197822A2 (fr) * 2013-06-06 2014-12-11 Tricord Holdings, L.L.C. Systèmes, kits et méthodes de surveillance physiologique modulaire
CA2941872A1 (fr) * 2014-03-10 2015-09-17 L.I.F.E. Corporation S.A. Vetements de surveillance physiologique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109009025A (zh) * 2018-08-10 2018-12-18 周霞 一种内科护理监护仪

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