WO2015179933A1 - Módulo para captação de sinais do corpo - Google Patents
Módulo para captação de sinais do corpo Download PDFInfo
- Publication number
- WO2015179933A1 WO2015179933A1 PCT/BR2014/000181 BR2014000181W WO2015179933A1 WO 2015179933 A1 WO2015179933 A1 WO 2015179933A1 BR 2014000181 W BR2014000181 W BR 2014000181W WO 2015179933 A1 WO2015179933 A1 WO 2015179933A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signals
- module
- impedance
- face
- sensor
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7271—Specific aspects of physiological measurement analysis
- A61B5/7285—Specific aspects of physiological measurement analysis for synchronising or triggering a physiological measurement or image acquisition with a physiological event or waveform, e.g. an ECG signal
- A61B5/7289—Retrospective gating, i.e. associating measured signals or images with a physiological event after the actual measurement or image acquisition, e.g. by simultaneously recording an additional physiological signal during the measurement or image acquisition
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/053—Measuring electrical impedance or conductance of a portion of the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/053—Measuring electrical impedance or conductance of a portion of the body
- A61B5/0536—Impedance imaging, e.g. by tomography
-
- 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
-
- 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
- A61B5/352—Detecting R peaks, e.g. for synchronising diagnostic apparatus; Estimating R-R interval
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—Electrodes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/06—Arrangements of multiple sensors of different types
- A61B2562/063—Arrangements of multiple sensors of different types in a linear array
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/053—Measuring electrical impedance or conductance of a portion of the body
- A61B5/0535—Impedance plethysmography
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7235—Details of waveform analysis
- A61B5/725—Details of waveform analysis using specific filters therefor, e.g. Kalman or adaptive filters
Definitions
- the present invention relates to a module for capturing signals from a patient's body (human or animal), such as cardiac electrical signals and body impedance signals.
- EIT Electrical impedance tomography
- Equipment used for this purpose comprises a plurality of sensors (electrodes) positioned in contact with the skin which are connected by electrical conductors to a processor unit producing said alternating signal.
- the method used comprises a plurality of steps in each of which a pair of electrodes is selected for injection of said signal while the induced voltages that are captured by the unselected electrodes are measured. In the following steps, other pairs of electrodes for signal injection are selected, continuing this sequence until all the electrodes of the equipment have been selected, completing an scanning cycle.
- the induced voltages that are captured by the electrodes are subjected to treatment by specific software, allowing the generation of images representing phenomena ⁇ ventilation and perfusion in the body of interest.
- Impedance signals captured at each cycle include signals arising from factors originating from the body's normal function.
- the signals captured by the electrodes in each measurement cycle will be distorted due to the influence of electrical and mechanical signals produced by cardiac activity, which influence should be separated from the signal generated by mechanical ventilation for a better analysis of each of these phenomena. .
- the need to synchronize the acquisition of the impedance signal with some device providing the electrocardiogram (ECG) signal is well known, so that the algorithm of the EIT device can identify the time of the heartbeat and thus , separate the effect of this activity from ventilation activity.
- the device providing the ECG signal may also already indicate the time when the heartbeat occurs, as well as other relevant moments of the heart cycle.
- This integration with the ECG device can be done in several ways.
- the ECG device may be equipment other than EIT equipment or part of separate equipment (such as a multiparameter vital signs monitor, common in intensive care units, operating rooms, and emergency rooms). ).
- EIT equipment such as a multiparameter vital signs monitor, common in intensive care units, operating rooms, and emergency rooms.
- there is a disadvantage with regard to integration since hospital environments very commonly have equipment of different brands, and the integration of ECG equipment with EIT equipment should require articulation between different suppliers and alignment of interest.
- the ECG apparatus may be incorporated into the EIT apparatus.
- This solution is also known and solves the problem of integrating disparate handsets that are commonly from different vendors.
- the ECG acquisition circuit may be in a electronic board independent of the EIT circuit or can be integrated into the EIT circuit itself, sharing the use of some of its electronic components.
- This second form while solving the main disadvantage of the first form, presents a major problem consisting of an excess of electrodes applied to the patient.
- the patient for whom the EIT device is installed must have applied two sets of ECG signal acquisition electrodes to his chest, the first being for use of the EIT device; and the second for the use of the ECG monitor, whether it is standalone equipment or part of a multiparameter vital signs monitor.
- ECG acquisition electrode assemblies generally consist of 3, 5, or 10 cables, which are concentrated in an intermediate connection piece from which a thicker cable containing all signals is routed to a connector on the ECG apparatus. .
- the EIT device is a module of a multiparametric vital signs monitor, with the aggravation that in this case there is less freedom to position the EIT device to facilitate electrode application. Synchronization with the ECG acquisition module, although facilitated by the fact that it is from the same manufacturer, is not appropriate as it usually occurs by sending cardiac events to the ECG module identified only after a digital analysis of the electrocardiogram, which implies not necessarily uniform delays.
- PI 0805365 describes electrodes used to apply transdermal electrical stimuli to patients and / or pick up patient electrical signals in order to provide a low cost solution that is easy to apply to the patient.
- this document does not provide for the inclusion of electrocardiogram electrodes, therefore, not solving the problems of integration with an electrocardiogram device.
- US 4,722,354 describes a deformable mesh conductive fabric that is impregnated with a conductive adhesive that adheres to the patient's skin.
- the electrical contact is provided by a multiconductor flexible cable, the insulation of the cable end being removed to allow these conductors to be separated on the surface of said fabric, forming a fan.
- An insulating plastic blade is glued over this assembly to prevent accidental electrical contact with the conductive portions of the electrode.
- US 4,736,752 discloses that the conductive portion of the electrode consists of a plurality of conductive ink strokes applied on a flexible insulating base such as a polyethylene sheet.
- document ⁇ 080 ⁇ 0 4-5 provides for the use of data, signals, events, and information gathered by different means and equipment to enhance the function of the electrical impedance tomograph. This document considers the case where the ECG device may be incorporated into the EIT device, but does not solve the important practical problem of applying two sets of electrocardiogram electrodes.
- the present invention has as one of its objectives to provide a body signal capture module comprising sensors dedicated to the capture of electrical signals from the heart and sensors dedicated to the capture of impedance signals from the body, such sensors being arranged on the same face of the module.
- Another object of the present invention is to provide a body signal capture module comprising sensors that simultaneously capture cardiac electrical signals and body impedance signals, such sensors being arranged on the same face of the module.
- the present invention by its own characteristics, can further solve other problems of the state of the art not brought here as an example, since the list of devices and methods for capturing body signals and their problems here is exemplary. and not exhaustive.
- the present invention is a body signal capture module comprising at least one sensor for cardiac electrical signal capture and at least one sensor for signal capture. in body impedance.
- the present invention also relates to a body signal capture module comprising at least one simultaneous sensor capable of capturing cardiac electrical signals and / or body impedance signals.
- cardiac electrical signals are electrocardiogram signals
- - body impedance signals are signals used for electrical impedance tomography
- the sensors of cardiac electrical signals and impedance of the body are electrodes
- the sensor for simultaneous capture is an electrode
- the module comprises a first face and a second face, the first face being opposite the second face and the first face being capable of being in contact with the body;
- At least one sensor for capturing cardiac electrical signals and at least one sensor for capturing impedance signals from the body are arranged on the first face;
- At least one simultaneous sensor is arranged on the first face
- the module has elongated shape
- the module is made of flexible material.
- Figure 1 is a perspective view of a first embodiment of the invention.
- Figure 2 is a perspective view of a second embodiment of the invention.
- module 1 is elongated and comprises two faces, a first face 2 being configured to be in contact with the body of a patient (human or animal) and a second face 3 opposite the first face 2.
- the shape of each of the faces 2 and 3 may vary within the scope of the invention, so that the substantially rectangular shape illustrated in Figure 1 may differ depending on how the present invention will be embodied.
- the first face 2 may comprise a rectangle shape with rounded corners, or sides comprising undulations in its outline.
- module 1 is made of flexible material, such as a polymeric material with elastic properties. Additionally, module 1 may be strap-shaped, which may be combined with the flexibility brought about by the polymeric material mentioned, to bring ease of application and more patient comfort.
- the module comprises two types of sensors, at least one sensor for capturing cardiac electrical signals 4 and at least one sensor for capturing impedance signals from body 5, such sensors being 4 and 5 arranged on the first face 2 of the module.
- sensors 4 and 5 are arranged in the same area or, in other words, in the same footprint.
- cardiac electrical signals are electrocardiogram (ECG) signals and body impedance signals are signals used for electrical impedance tomography (EIT).
- ECG electrocardiogram
- EIT electrical impedance tomography
- the body's 4 cardiac and 4 impedance electrical signal sensors are electrodes.
- module 1 may comprise from 8 to 32 sensors for impedance signal sensing from body 5 arranged on the first face 2. It is important to note that the exact amount of sensors for impedance signal sensing 5 may vary depending on the embodiment of the invention. In addition, the arrangement of these sensors 5 may follow a spacing and distribution pattern, that is, these sensors may be arranged in an aligned or non-aligned manner and with predetermined distances between each of them.
- the module may comprise a variable amount of sensors for capturing cardiac signals 4, and the arrangement of these sensors 4 on the first face 2 of module 1 may or may not conform to a distribution pattern.
- these sensors 4 may be arranged at random positions, at the discretion of the inventor.
- the present invention can be realized with sensors for capturing cardiac electrical signals 4 being arranged between sensors for capturing impedance signals 5, or in another first face region 2.
- the sensors for capturing cardiac electrical signals 4 and the sensors for impedance signal collection of the body 5 may be varied in shape, so that this aspect does not establish limitations on the scope of the present invention. So, for example, such Sensors may include, for example, circular, oblong, rectangular, ellipse shapes, among others.
- At least one electrical conductor 6 is connected to each sensor 4 and 5, and such electrical conductors 6 converge to an output 7 associated with the body of module 1. It is noteworthy here that the representation of electrical conductors 6 in the Figure 1 has a didactic objective, therefore made schematically, since such conductors 6 are internal to module 1.
- Said output 7 comprises a tube shape, which may be integrally formed with the body of module 1 or be a separate device attached to module 1.
- this output 7 may be realized as a single or trunk cable. connected to the body of module 1, which aggregates the electrical conductors 6 of the various sensors 4 and 5.
- the output 7 made as a single or main cable may also comprise a connector (not shown), capable of connecting the electrical conductors 6 of the module. 1a: an impedance tomography device (EIT); a device integrating the impedance tomography (EIT) and electrocardiogram (ECG) functionality; or other patient condition monitoring devices using the quantities captured by sensors 4 and 5.
- EIT impedance tomography device
- ECG electrocardiogram
- FIG. 2 illustrates a second embodiment of the present invention.
- Module 1 of the second embodiment of the invention has the same characteristics as the first embodiment except that it comprises at least one simultaneous sensor 8 capable of capturing cardiac electrical signals and / or body impedance signals.
- module 1 comprises a versatile type of sensor capable of capturing both cardiac electrical signals and body impedance signals.
- this simultaneous sensor 8 can also varying, including there may be more than one sensor 8 aligned or not aligned, as with sensors 4 and 5 of the first embodiment.
- this sensor 8 can also be realized as an electrode being arranged on the first face 2 of module 1, ie in the same area or footprint as already described for sensors 4 and 5 of the first embodiment of the sensor. invention.
- module 1 already comprises in its body (on the first face 2, more precisely) a sensor for capturing cardiac and impedance electrical signals, it is unnecessary to add or couple additional sensors for measuring cardiac electrical signals such as ECG signals.
- module 1 of the second embodiment of the invention may comprise from 8 to 32 simultaneous sensors 8.
- these numbers represent an example of quantity and are therefore not exhaustive or limiting with respect to the scope of the invention. invention.
- At least one electrical conductor 6 is connected to each simultaneous sensor 8 as in the first embodiment of the invention.
- These electrical conductors 6 also converge to an output 7, which may be realized as a single or trunk cable connected to: an impedance tomography apparatus (EIT); an apparatus comprising the functionalities of impedance tomography (EIT) and electrocardiogram (ECG); to an electrocardiogram device; or to other patient condition monitoring devices using the quantities captured by the simultaneous sensor 8.
- EIT impedance tomography apparatus
- ECG electrocardiogram
- the apparatus receiving the signals captured by the simultaneous sensor 8 comprises means for identifying and separating cardiac electrical signals and body impedance signals.
- these means for identifying and separating the signals captured by the simultaneous sensor 8 may comprise amplifiers and filters.
- high input impedance instrumentation amplifiers can be connected to the main cable itself or, more precisely, to the electrical conductors 6.
- a high pass filter can be applied to eliminate the offset of the sensors.
- This high pass filter can be first order with cut-off frequency at 2 Hz.
- a low pass filter can also be applied to eliminate the high frequency from the device current source and the one generated by the sensor scan that is made for imaging.
- This low pass filter can be eighth order with gain of 150 and cutoff frequency at 40 Hz. At the end of these amplification and filtering steps, the cardiac electrical signal is obtained.
- the arrangement of sensors for capturing cardiac electrical signals 4 and sensors for capturing impedance signals 5 from the body on the same face 2 (or footprint) of module 1 brings considerable advantages to the present invention.
- the advantages one can cite the fact that the need for additional or coupled sensors to measure cardiac electrical signals such as electrocardiogram signals is eliminated.
- the problem of excess electrodes observed in the state of the art is eliminated.
- the electrical conductors 6 converge to an output 7, directly associated with the module 1 body and made as a single or trunk cable, connected to the patient monitoring device.
- the patient and the medical team fail to suffer from the great number of wires and cables, remembering that to each electrode of the state of the art is connected a wire or cable.
- these wires and cables, in the state of the art lie on the hospital bed, on the patient or between the bed and the patient's condition monitoring device. With the present invention such a problem is satisfactorily eliminated.
- module 1 it is worth mentioning the synergistic effect that exists by combining the presence of sensors 4, 5 or 8 on the same side 2 (or footprint) of module 1 with the convergence of the electrical conductors to an output 7 made as a single cable or main.
- the practicality and ease of use brought about by the combination of these two factors make module 1 clearly advantageous and inventive in relation to the state of the art.
- the second embodiment of the present invention has advantages with regard to versatility. More precisely, since simultaneous sensors 8 can simultaneously capture cardiac electrical signals and / or body impedance signals, it is possible to configure the patient monitoring apparatus to use such a sensor 8 as an electrocardiogram electrode, a tomography electrode. by impedance or for both cases. Accordingly, it is possible to configure that a given number of simultaneous sensors 8 act as the electrocardiogram electrode and another given amount as an impedance tomography electrode.
- the body signal pickup module of the present invention is particularly useful for capturing cardiac electrical signals and body impedance signals
- the module of the present invention may be constructed for other types of applications and may have modifications in the manner in which it is implemented. , so that the scope of protection of the invention is limited only by the content of the appended claims, including possible equivalent variations.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Biophysics (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Cardiology (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physiology (AREA)
- Psychiatry (AREA)
- Signal Processing (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/314,886 US20170143224A1 (en) | 2014-05-30 | 2014-05-30 | Module for detecting bodily signals |
PCT/BR2014/000181 WO2015179933A1 (pt) | 2014-05-30 | 2014-05-30 | Módulo para captação de sinais do corpo |
EP14893261.9A EP3150118A4 (en) | 2014-05-30 | 2014-05-30 | Module for detecting bodily signals |
JP2017514741A JP2017516623A (ja) | 2014-05-30 | 2014-05-30 | 生体信号検出モジュール |
CN201480079432.4A CN106535756A (zh) | 2014-05-30 | 2014-05-30 | 用于捕获身体信号的模块 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/BR2014/000181 WO2015179933A1 (pt) | 2014-05-30 | 2014-05-30 | Módulo para captação de sinais do corpo |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015179933A1 true WO2015179933A1 (pt) | 2015-12-03 |
Family
ID=54697744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BR2014/000181 WO2015179933A1 (pt) | 2014-05-30 | 2014-05-30 | Módulo para captação de sinais do corpo |
Country Status (5)
Country | Link |
---|---|
US (1) | US20170143224A1 (pt) |
EP (1) | EP3150118A4 (pt) |
JP (1) | JP2017516623A (pt) |
CN (1) | CN106535756A (pt) |
WO (1) | WO2015179933A1 (pt) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020523106A (ja) * | 2017-06-07 | 2020-08-06 | レスピラトリー・モーション・インコーポレイテッド | 生体インピーダンス測定のための電極のスペーシング |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2425181A (en) * | 2005-04-14 | 2006-10-18 | Justin Pisani | Wearable physiological monitoring device |
US20100305633A1 (en) * | 2009-06-02 | 2010-12-02 | Kusai Saadeldin Aziz | Diagnostic And Therapeutic Chest Casing |
WO2012045188A1 (en) * | 2010-10-07 | 2012-04-12 | Swisstom Ag | Sensor device for electrical impedance tomography imaging, electrical impedance tomography imaging intrument and electrical impeance tomography method |
BR102012031186A2 (pt) * | 2012-12-07 | 2014-09-09 | Rafael Holzhacker | Método e aparato para aquisição de sinais para tomografia por impedancia elétrica e eletrocardiograma |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03707U (pt) * | 1988-09-20 | 1991-01-08 | ||
JP2002209864A (ja) * | 2001-01-18 | 2002-07-30 | Kazuyoshi Sugiyama | 心電図検査用電極装置 |
BRPI0801014A8 (pt) * | 2008-04-09 | 2015-09-29 | Dixtal Biomedica Ind E Comercio Ltda | Tomografia por impedância elétrica utilizando informações de fontes adicionais |
JP5694139B2 (ja) * | 2011-12-28 | 2015-04-01 | 日本光電工業株式会社 | 睡眠中における無呼吸低呼吸状態の検出装置 |
US8983578B2 (en) * | 2012-02-27 | 2015-03-17 | General Electric Company | System and method for transducer placement in soft-field tomography |
-
2014
- 2014-05-30 US US15/314,886 patent/US20170143224A1/en not_active Abandoned
- 2014-05-30 JP JP2017514741A patent/JP2017516623A/ja active Pending
- 2014-05-30 WO PCT/BR2014/000181 patent/WO2015179933A1/pt active Application Filing
- 2014-05-30 CN CN201480079432.4A patent/CN106535756A/zh active Pending
- 2014-05-30 EP EP14893261.9A patent/EP3150118A4/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2425181A (en) * | 2005-04-14 | 2006-10-18 | Justin Pisani | Wearable physiological monitoring device |
US20100305633A1 (en) * | 2009-06-02 | 2010-12-02 | Kusai Saadeldin Aziz | Diagnostic And Therapeutic Chest Casing |
WO2012045188A1 (en) * | 2010-10-07 | 2012-04-12 | Swisstom Ag | Sensor device for electrical impedance tomography imaging, electrical impedance tomography imaging intrument and electrical impeance tomography method |
BR102012031186A2 (pt) * | 2012-12-07 | 2014-09-09 | Rafael Holzhacker | Método e aparato para aquisição de sinais para tomografia por impedancia elétrica e eletrocardiograma |
Non-Patent Citations (1)
Title |
---|
See also references of EP3150118A4 * |
Also Published As
Publication number | Publication date |
---|---|
US20170143224A1 (en) | 2017-05-25 |
CN106535756A (zh) | 2017-03-22 |
JP2017516623A (ja) | 2017-06-22 |
EP3150118A4 (en) | 2018-01-17 |
EP3150118A1 (en) | 2017-04-05 |
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