WO2019150398A1 - Patch d'ecg sans fil - Google Patents

Patch d'ecg sans fil Download PDF

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Publication number
WO2019150398A1
WO2019150398A1 PCT/IN2019/050083 IN2019050083W WO2019150398A1 WO 2019150398 A1 WO2019150398 A1 WO 2019150398A1 IN 2019050083 W IN2019050083 W IN 2019050083W WO 2019150398 A1 WO2019150398 A1 WO 2019150398A1
Authority
WO
WIPO (PCT)
Prior art keywords
patch
lead
leads
locus
series
Prior art date
Application number
PCT/IN2019/050083
Other languages
English (en)
Inventor
Dattaram CHARI
Rupesh Ghyar
Vijay Bapat
Bhallamudi Ravi
Anvay Mulay
Original Assignee
Indian Institute Of Technology Bombay
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 Indian Institute Of Technology Bombay filed Critical Indian Institute Of Technology Bombay
Publication of WO2019150398A1 publication Critical patent/WO2019150398A1/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
    • 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
    • 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
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6823—Trunk, e.g., chest, back, abdomen, hip
    • 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
    • A61B5/251—Means for maintaining electrode contact with the body
    • A61B5/257—Means for maintaining electrode contact with the body using adhesive means, e.g. adhesive pads or tapes
    • A61B5/259—Means for maintaining electrode contact with the body using adhesive means, e.g. adhesive pads or tapes using conductive adhesive means, e.g. gels

Definitions

  • This invention relates to the field of biomedical engineering.
  • this invention relates to a wireless ECG patch.
  • Electrocardiography is one of the most widely used non-invasive diagnostic tools for detection of cardiac diseases and has a significant impact on medical decision making, clinical management, and therapy.
  • An ECG system records the electrical activity in the heart in the form of waveforms with the help of electrodes attached to the skin.
  • Electrocardiograph has become a routine part of any complete medical evaluation.
  • An ECG waveform allows one to infer information about electrical activity associated with different aspects of a heartbeat and is therefore of particular value for assessing an individual’s cardiac rhythm and heart health.
  • ECG waveform Electric activity potential depends on electrode-skin impedance.
  • An ECG waveform is classified as P wave, PR interval, QRS part, and T wave. Each portion of the ECG waveform carries information which helps analyse a patient’s heart condition.
  • RA right arm
  • LA left arm
  • LL left leg
  • physicians examine an ECG in a transverse plane they utilize chest leads. In this procedure, electrodes are placed at various anatomically defined positions on a chest wall of a patient / subject, and are connected to an ECG recorder / monitor. These leads are known as precordial ECG leads.
  • each precordial electrode and its accompanying lead primarily records electrical activity or potential of the cardiac musculature immediately beneath the electrode position. Therefore, to achieve proper results, a medical technician or the physician, particularly when measuring ECG, must be careful to place each chest electrode at its precise location on the chest.
  • ECG systems vary in size, shapes and functionality; like 12 lead ECG- standard ECG machines, Holter monitors, stress ECG monitors, wireless ECG monitors, cardiac event recorders, cardiac loop recorders, implantable loop recorders (ILR). These recorders / monitors / devices are used depending on type of test and disease. Depending on their intended application, they can vary in the type of data, output, record, or monitor.
  • Electrodes which are joined to the ECG recorder by wires.
  • One electrode is attached to each limb and six more electrodes are attached to the front of the chest portion of the body.
  • Current ECG systems have limitations with respect to positioning (in restless patients, emergency commotion), placement accuracy (skilled technician are required), holter monitoring (usability), difficulty in placement (women, hairy patients, obese patients, etc.), maintaining sterility and reusability (HIV patients, skin disease).
  • a Holter monitor is a portable ECG monitoring device that can be worn by a patient for duration of 24 to 48 hours while the device continuously monitors the patient’s heart rhythm. It has fewer leads than a normal clinical ECG machine. This medical device is useful for detecting abnormalities in heart rhythm that could be easily missed during a clinical ECG test.
  • Electrodes are not waterproof
  • the device or mechanism should not require accurate placement of leads and that the device or mechanism should be wireless and that the device or mechanism should be waterproof and that the device or mechanism should provide at least 10 lead / electrode information and that the device should be capable of monitoring for longer durations of time.
  • An object of the invention is to provide a wireless ECG patch for accurate placement.
  • Another object of the invention is to provide a wireless ECG patch / sticker for accurate placement which is adjustable, flexible, and disposable.
  • Yet another object of the invention is provide a wireless ECG patch / sticker which is adaptable to any patient irrespective of sex, size, and body hair, thereby overcoming problems.
  • a wireless ECG patch comprising:
  • a first series of leads (series of electrodes relating to chest) aligned in an operative horizontal series with respect to each other, each lead being spaced apart from an adjacent lead and being connected to an adjacent lead by means of a flexible substrate layer, said flexile substrate layer printed, on top, with a flexible printed circuit film layer which connects each of said electrodes to a power source as well as to a data recording unit, a flexible adhesive layer, underneath said leads configured to aid in attaching said leads to a skin of a user;
  • a second series of leads (series of electrodes relating to upper limb) aligned in operative horizontal series with respect to each other, each lead being spaced apart from an adjacent lead and being connected to an adjacent lead by means of a flexible substrate layer, said flexile substrate layer printed, on top, with a flexible printed circuit film layer which connects each of said electrodes to a power source as well as to a data recording unit, a flexible adhesive layer, underneath said leads configured to aid in attaching said leads to a skin of a user, wherein, said second series of leads being operatively vertically spaced apart from the first series of leads, in that said second series of leads is operatively vertically above said first series of leads;
  • a third series of leads (series of electrodes relating to lower limb) aligned in operative horizontal series with respect to each other, each lead being spaced apart from an adjacent lead and being connected to an adjacent lead by means of a flexible substrate layer, said flexile substrate layer printed, on top, with a flexible printed circuit film layer which connects each of said electrodes to a power source as well as to a data recording unit, a flexible adhesive layer, underneath said leads configured to aid in attaching said leads to a skin of a user, wherein, said third series of leads being operatively vertically spaced apart from said first series of leads , in that said third series of leads is operatively vertically below said first series of leads; and
  • said flexible substrate layer is a silver (Ag) layer printed on a flexible substrate.
  • said flexible substrate layer is a waterproof layer.
  • said flexible printed circuit film layer is a silver chloride (AgCl) layer.
  • said flexible printed circuit film is screen-printed on to said flexible substrate layer.
  • each electrode of each lead is placed on backing foam, said foam layer being in contact with skin of a user.
  • the patch comprises a first set of leads comprising a first lead and a second lead located on a locus of points equidistant from a medial strip corresponding to medial axis of the user wearing this patch.
  • the patch comprises a first set of leads comprising a first lead and a second lead located on a locus of points equidistant from a medial strip corresponding to medial axis of the user wearing this patch, characterised in that, the locus of points for an RA lead is located on or below the user’s right shoulder.
  • the patch comprises a first set of leads comprising a first lead and a second lead located on a locus of points equidistant from a medial strip corresponding to medial axis of the user wearing this patch, characterised in that, the locus of points for an LA lead is located on or below the user’s left shoulder.
  • the patch comprises a second set of leads comprising a third lead and a fourth lead located on a locus of points equidistant from a medial strip corresponding to medial axis of the user wearing this patch.
  • the patch comprises a second set of leads comprising a third lead and a fourth lead located on a locus of points equidistant from a medial strip corresponding to medial axis of the user wearing this patch, characterised in that, the locus of points for an RL lead is located below the user’s right torso.
  • the patch comprises a second set of leads comprising a third lead and a fourth lead located on a locus of points equidistant from a medial strip corresponding to medial axis of the user wearing this patch, characterised in that, the locus of points for an LLA lead is located below the user’s left torso.
  • the patch comprises a fifth lead located on a locus of points extending towards the right of a medial strip corresponding to medial axis of the user wearing this patch.
  • the patch comprises a fifth lead located on a locus of points extending towards the right of a medial strip corresponding to medial axis of the user wearing this patch, characterised in that, the locus of points for a VI lead is located at a 4 th intercostal space to the right of the sternum of the user.
  • the patch comprises a sixth lead located on a locus of points extending towards the left of a medial strip corresponding to medial axis of the user wearing this patch.
  • the patch comprises a sixth lead located on a locus of points extending towards the left of a medial strip corresponding to medial axis of the user wearing this patch, characterised in that, the locus of points for a V2 lead is located at a 4 th intercostal space to the left of the sternum of the user.
  • the patch comprises a seventh lead located on a locus of points extending towards the left of a medial strip corresponding to medial axis of the user wearing this patch.
  • the patch comprises a seventh lead located on a locus of points extending towards the left of a medial strip corresponding to medial axis of the user wearing this patch, characterised in that, the locus of points for a V3 lead is located at a midway between the sixth lead and the eighth lead.
  • the patch comprises an eighth lead located on a locus of points extending towards the left of a medial strip corresponding to medial axis of the user wearing this patch.
  • the patch comprises an eighth lead located on a locus of points extending towards the left of a medial strip corresponding to medial axis of the user wearing this patch, characterised in that, the locus of points for a V4 lead is located at a 5th intercostal space at the midclavicular line of the user.
  • the patch comprises a ninth lead located on a locus of points extending towards the left of a medial strip corresponding to medial axis of the user wearing this patch.
  • the patch comprises a ninth lead located on a locus of points extending towards the left of a medial strip corresponding to medial axis of the user wearing this patch, characterised in that, the locus of points for a V5 lead is located at an anterior axillary line at the same level as lead V4.
  • the patch comprises a tenth lead located on a locus of points extending towards the left of a medial strip corresponding to medial axis of the user wearing this patch.
  • the patch comprises a tenth lead located on a locus of points extending towards the left of a medial strip corresponding to medial axis of the user wearing this patch, characterised in that, the locus of points for a VI lead is located at a midaxillary line at the same level as leads V4 and V5.
  • the common output is communicably coupled to a hub comprising a signal acquisition and processing module so that data from 10 ECG leads is collected, using this patch, and processed at said hub.
  • each of said leads comprises an electrode located on backing foam, said backing foam comprising a concentric double sided adhesive foam and conductive gel on the side in communication with a user’s skin, an insulating shield and an insulation layer on the operative underside of said lead.
  • FIGURE la illustrates positions of electrodes on a human body
  • FIGURE lb illustrates a 12-lead ECG machine along with positioned electrodes on the human body at the positions shown in Figure la of the accompanying drawings.
  • FIGURES 2a, 2b, 2c, 2d, and 2e illustrate which lead, of an ECG monitoring / recording device, is which and where it goes with respect to a human body.
  • FIGURE 3 illustrates a schematic view of the ECG patch
  • FIGURE 4a illustrates a top view of a lead of the ECG patch
  • FIGURE 4b illustrates a side view of a lead of the ECG path
  • FIGURE 5 illustrates a side view of a portion of the ECG patch.
  • FIGURE la illustrates positions (RA, LA, VI, V2, V3, V4, V5, V6, RL, LL) of electrodes on a human body (10).
  • FIGURE lb illustrates a 12-lead ECG machine (20) along with positioned electrodes on the human body at the positions shown in Figure la of the accompanying drawings.
  • FIGURES 2a, 2b, 2c, 2d, and 2e illustrate which lead, of an ECG monitoring / recording device, is which and where it goes with respect to a human body (10).
  • a lead is a combination of two electrodes.
  • Leads I, II, III and aVR, aVF, aVL waveforms are generated from combination of limb electrodes.
  • Leads VI to V6 are generated from chest electrode.
  • FIGURE 3 illustrates a schematic view of the ECG patch.
  • FIGURE 5 illustrates a side view of a portion of the ECG patch.
  • All leads are in such a topology that it corresponds to correct and accurate positions on a user’s body. All leads are connected and they combine into a single port. Patch is designed such way that it is easily attached to precise location. Further, the design is such that while the electrodes remain in continuous contact with a user’ s / wearer’ s skin, the patch allows for flexibility in movement and also provides for the user to be ambulatory.
  • the patch comprises a first set of leads (RA, LA) comprising a first lead (RA) and a second lead (LA) located on a locus of points equidistant from a medial strip corresponding to medial axis of the user wearing this patch. Additionally, the locus of points for an RA lead is located on or below the user’s right shoulder. Additionally, the locus of points for an LA lead is located on or below the user’s left shoulder.
  • RA, LA leads
  • the patch comprises a second set of leads (RL, LL) comprising a third lead (RL) and a fourth lead (LL) located on a locus of points equidistant from a medial strip corresponding to medial axis of the user wearing this patch. Additionally, the locus of points for an RL lead is located below the user’s right torso. Additionally, the locus of points for an LLA lead is located below the user’s left torso.
  • the patch comprises a fifth lead (VI) located on a locus of points extending towards the right of a medial strip corresponding to medial axis of the user wearing this patch. Additionally, the locus of points for a VI lead is located at a 4 th intercostal space to the right of the sternum of the user. In at least an embodiment, the patch comprises a sixth lead (V2) located on a locus of points extending towards the left of a medial strip corresponding to medial axis of the user wearing this patch. Additionally, the locus of points for a V2 lead is located at a 4 th intercostal space to the left of the sternum of the user.
  • VI fifth lead
  • V2 located on a locus of points extending towards the right of a medial strip corresponding to medial axis of the user wearing this patch. Additionally, the locus of points for a V2 lead is located at a 4 th intercostal space to the left of the sternum of the user.
  • the patch comprises a seventh lead (V3) located on a locus of points extending towards the left of a medial strip corresponding to medial axis of the user wearing this patch. Additionally, the locus of points for a V3 lead is located at a midway between the sixth lead (V2) and the eighth lead (V4).
  • the patch comprises an eighth lead (V4) located on a locus of points extending towards the left of a medial strip corresponding to medial axis of the user wearing this patch. Additionally, the locus of points for a V4 lead is located at a 5 th intercostal space at the midclavicular line of the user.
  • V4 eighth lead
  • the patch comprises a ninth lead (V5) located on a locus of points extending towards the left of a medial strip corresponding to medial axis of the user wearing this patch. Additionally, the locus of points for a V5 lead is located at an anterior axillary line at the same level as lead V4.
  • the patch comprises a tenth lead (V6) located on a locus of points extending towards the left of a medial strip corresponding to medial axis of the user wearing this patch. Additionally, the locus of points for a VI lead is located at a midaxillary line at the same level as leads V4 and V5. In accordance with an embodiment of this invention, all the leads are communicably coupled to a common output (O). There is provided a common output in the form of a hub (H) which will give out a port which can be either be a USB based port or a wireless unit with Bluetooth connection. The hub can hold a battery to complete its basic function of recording and / or transmitting the signals.
  • the patch comprises a first series of leads (VI, V2, V3, V4, V5, V6) (series of electrodes relating to chest) aligned in operative horizontal series with respect to each other, each lead being spaced apart from an adjacent lead and being connected to an adjacent lead by means of a flexible substrate layer (LI).
  • This layer aids in adjusting distance between leads (VI, V2, V3, V4, V5, V6), from the first series of leads, depending on body size, so that the leads (and hence, electrodes), of the patch, are placed at precise locations.
  • this layer is a silver (Ag) layer printed on a flexible substrate.
  • this layer is made of waterproof material.
  • the flexile substrate layer (LI) is printed, on top, with a flexible printed circuit film layer (L2) which connects each of the electrodes to a power source as well as to a data recording unit.
  • the flexible substrate layer (LI) along with the flexible printed circuit film (L2) is flexible enough to accommodate for deformations while being continuously used on a human body.
  • this layer is a silver chloride (AgCl) layer.
  • the flexible printed circuit film is screen-printed on to the flexible substrate layer (LI). Screen-printing provides tracks instead of cable which eliminate cable tangling and maintains single point of contact between patch and machine.
  • the patch, underneath the leads comprises a flexible adhesive layer (L3) which aids in attaching the leads to a skin of the user that intends to use / wear this patch.
  • L3 flexible adhesive layer
  • Only the leads comprise this layer so that other parts of the patch are not in continuous contact / communication with the skin while the leads are in communication with the user’s / wearer’s skin.
  • Reference numeral 4 refers to conductive gel which interfaces between the backing foam (2) and the human skin on which the electrode (1) is to be placed.
  • Each electrode is placed on backing foam (2); the foam layer being in contact with the skin.
  • the patch comprises a second series of leads (RA, LA) (series of electrodes relating to upper limb) aligned in operative horizontal series with respect to each other, each lead being spaced apart from an adjacent lead and being connected to an adjacent lead by means of a flexible substrate layer (LI).
  • This layer aids in adjusting distance between leads (RA, LA), from the second series of leads, depending on body size, so that the leads (and hence, electrodes), of the patch, are placed at precise locations.
  • this layer is a silver (Ag) layer printed on a flexible substrate.
  • this layer is made of waterproof material.
  • the flexile substrate layer (LI) is printed, on top, with a flexible printed circuit film layer (L2) which connects each of the electrodes to a power source as well as to a data recording unit.
  • the flexible substrate layer (LI) along with the flexible printed circuit film (L2) is flexible enough to accommodate for deformations while being continuously used on a human body.
  • this layer is a silver chloride (AgCl) layer.
  • the flexible printed circuit film is screen -printed on to the flexible substrate layer (LI). Screen -printing provides tracks instead of cable which eliminate cable tangling and maintains single point of contact between patch and machine.
  • the patch, underneath the leads comprises a flexible adhesive layer (L3) which aids in attaching the leads to a skin of the user that intends to use / wear this patch.
  • L3 flexible adhesive layer
  • Only the leads comprise this layer so that other parts of the patch are not in continuous contact / communication with the skin while the leads are in communication with the user’s / wearer’s skin.
  • the second series of leads (RA, LA) is operatively vertically spaced apart from the first series of leads (VI, V2, V3, V4, V5, V6), in that the second series of leads is operatively vertically above the first series of leads.
  • the patch comprises a third series of leads (RL, LL) (series of electrodes relating to lower limb) aligned in operative horizontal series with respect to each other, each lead being spaced apart from an adjacent lead and being connected to an adjacent lead by means of a flexible substrate layer (LI).
  • This layer aids in adjusting distance between leads (RL, LL), from the third series of leads, depending on body size, so that the leads (and hence, electrodes), of the patch, are placed at precise locations.
  • this layer is a silver (Ag) layer printed on a flexible substrate.
  • this layer is made of waterproof material.
  • the flexile substrate layer (LI) is printed, on top, with a flexible printed circuit film layer (L2) which connects each of the electrodes to a power source as well as to a data recording unit.
  • the flexible substrate layer (LI) along with the flexible printed circuit film (L2) is flexible enough to accommodate for deformations while being continuously used on a human body.
  • this layer is a silver chloride (AgCl) layer.
  • the flexible printed circuit film is screen -printed on to the flexible substrate layer (LI). Screen -printing provides tracks instead of cable which eliminate cable tangling and maintains single point of contact between patch and machine.
  • the patch, underneath the leads comprises a flexible adhesive layer (L3) which aids in attaching the leads to a skin of the user that intends to use / wear this patch.
  • L3 flexible adhesive layer
  • Only the leads comprise this layer so that other parts of the patch are not in continuous contact / communication with the skin while the leads are in communication with the user’s / wearer’s skin.
  • the third series of leads (RL, LL) is operatively vertically spaced apart from the first series of leads (VI, V2, V3, V4, V5, V6) , in that the third series of leads is operatively vertically below the first series of leads.
  • FIGURE 4a illustrates a top view of a lead of the ECG patch.
  • Reference numeral 1 refers to an electrode.
  • this electrode is of Ag or AgCl material.
  • Reference numeral 2 refers to backing form.
  • this backing foam is of foam, PET, or paper material.
  • FIGURE 4b illustrates a side view of a lead of the ECG path
  • Reference numeral 3 refers to a concentric double sided adhesive foam.
  • this adhesive foam is medical grade acrylic.
  • Reference numeral 4 refers to conductive gel.
  • this conductive gel is a chloride-based hydro gel.
  • Reference numeral 5 refers to a plastic shield.
  • this plastic shield is plastic.
  • Reference numeral 6 refers to an insulation layer.
  • this insulation layer is a plastic coating.
  • the patch / sticker leads (and its electrodes) will be pasted on limbs. Then the electrodes will be adhered on the patch / sticker surface.
  • visually it has been tried to give the hand and leg electrodes a different treatment in terms of shape and color.
  • the hand electrodes have been provided with hand profile while the leg electrode have been symbolized with the leg profile which can help a user to visually differentiate and identify the electrodes and help in easing the process.
  • the physiological signal is at least one of electrocardiogram (ECG), electroencephalogram (EEG), electromyogram (EMG), Electroretinogram (ERG), Electrooculography (EOG), Electroolfactogram (EOG), Electropalatogram (EPG), Electrogastroenterogram (EGEG), Electrocochleography (ECOG), Galvanic skin response (GSR) and any other physiological signal.
  • ECG electrocardiogram
  • EEG electroencephalogram
  • EMG electromyogram
  • EEG Electroretinogram
  • EEG Electrooculography
  • EEG Electroolfactogram
  • EPG Electropalatogram
  • EPG Electrogastroenterogram
  • ECOG Electrocochleography
  • GSR Galvanic skin response
  • the hub (H) comprises a signal acquisition and processing module (SPM).
  • SPM signal acquisition and processing module
  • Medical grade ECG can be recorded and transmitted wirelessly.
  • the TECHNICAL ADVANCEMENT of this invention is to provide a 10-lead wireless ECG patch / sticker for accurate placement.
  • This ECG patch / sticker which is adjustable, flexible, wireless, waterproof and disposable.
  • These patches / stickers allow easy attachment to a body and the corresponding printed electrodes to be in contact with the skin.
  • the shape of the patch / sticker allows easy adjustment between various sizes.
  • the design markings and topography allows accurate placement of electrodes with respect to each other.

Abstract

L'invention concerne un patch d'ECG sans fil comprenant : une première série de dérivations (V1, V2, V3, V4, V5, V6), une deuxième série de dérivations (RA, LA), et une troisième série de dérivations (RL, LL); chaque série de dérivations comprenant des dérivations alignées dans une série horizontale fonctionnelle l'une par rapport à l'autre, chaque dérivations étant espacée et connectée à une dérivation adjacente au moyen d'une couche de substrat flexible (L1), ladite couche de substrat flexible (L1) est imprimée, au-dessus, avec une couche de film de circuit imprimé flexible (L2), une couche adhésive flexible (L3), sous lesdits dérivations pour aider à fixer lesdites dérivations à une peau d'un utilisateur; ladite deuxième série de dérivations et ladite troisième série de dérivations étant fonctionnellement espacées verticalement de la première série de dérivations; et une sortie commune (O) couplée en communication à ladite couche de film de circuit imprimé flexible (L2).
PCT/IN2019/050083 2018-02-05 2019-02-05 Patch d'ecg sans fil WO2019150398A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201821004358 2018-02-05
IN201821004358 2018-02-05

Publications (1)

Publication Number Publication Date
WO2019150398A1 true WO2019150398A1 (fr) 2019-08-08

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PCT/IN2019/050083 WO2019150398A1 (fr) 2018-02-05 2019-02-05 Patch d'ecg sans fil

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4197441A1 (fr) * 2021-12-16 2023-06-21 Alivecor, Inc. Électrocardiogramme à douze dérivations utilisant des électrodes couplées par un câble unique

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150148637A1 (en) * 2012-10-07 2015-05-28 Rhythm Diagnostics Systems, Inc. Health monitoring systems and methods
US20160029906A1 (en) * 2014-07-30 2016-02-04 Hmicro, Inc. Ecg patch and methods of use

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150148637A1 (en) * 2012-10-07 2015-05-28 Rhythm Diagnostics Systems, Inc. Health monitoring systems and methods
US20160029906A1 (en) * 2014-07-30 2016-02-04 Hmicro, Inc. Ecg patch and methods of use

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4197441A1 (fr) * 2021-12-16 2023-06-21 Alivecor, Inc. Électrocardiogramme à douze dérivations utilisant des électrodes couplées par un câble unique

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