WO2005094673A1 - Ceinture thoracique medicale - Google Patents

Ceinture thoracique medicale Download PDF

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Publication number
WO2005094673A1
WO2005094673A1 PCT/EP2005/002995 EP2005002995W WO2005094673A1 WO 2005094673 A1 WO2005094673 A1 WO 2005094673A1 EP 2005002995 W EP2005002995 W EP 2005002995W WO 2005094673 A1 WO2005094673 A1 WO 2005094673A1
Authority
WO
WIPO (PCT)
Prior art keywords
medical
reference electrode
electrodes
belt
chest belt
Prior art date
Application number
PCT/EP2005/002995
Other languages
German (de)
English (en)
Inventor
Gerold Schwarz
Marc Weitl
Original Assignee
Energy-Lab Technologies Gmbh
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 Energy-Lab Technologies Gmbh filed Critical Energy-Lab Technologies Gmbh
Priority to EP05731793A priority Critical patent/EP1776038A1/fr
Publication of WO2005094673A1 publication Critical patent/WO2005094673A1/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
    • A61B5/02—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
    • A61B5/02438—Detecting, measuring or recording pulse rate or heart rate with portable devices, e.g. worn by the patient
    • 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
    • A61B5/683—Means for maintaining contact with the body
    • A61B5/6831—Straps, bands or harnesses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/04—Constructional details of apparatus
    • A61B2560/0406—Constructional details of apparatus specially shaped apparatus housings
    • A61B2560/0412—Low-profile patch shaped housings
    • 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
    • A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
    • A61B5/7207—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal of noise induced by motion artifacts

Definitions

  • the present invention relates to a medical chest strap for detecting electrical signals on a body surface.
  • Electrical signals on a surface of the body indicate the electrical spread of stimuli in the heart and its stress and health status.
  • the electrical voltages on the body surface are recorded by a series of electrodes on the chest as well as on the arms and legs.
  • An electrocardiogram is then the temporal registration of the time-varying electrical vector from the heart on the surface of the body. Characteristic voltage levels or depths of an electrocardiogram are identified by letters. The absolute levels of these tensions, their time intervals, as well as their steepness and duration play a decisive role for medical interpretation. Many pathological changes in the heart can be diagnosed from these parameters and also, e.g. during exercise, strain on the heart.
  • the electrical signal curve allows an analysis of the heart rate variability. This can also be done
  • an electrode belt is known from EP 1 090 583 A1, by means of which the heartbeat rate can be detected, the detection of more complex electrical signals on a body surface is not possible. Accordingly, an electrode belt is provided, which is worn around the chest of the athlete and has two electrodes.
  • the particular difficulty lies in achieving good contact between the body surface and the electrode and at the same time not significantly restricting the movement of the athlete and thus creating a high level of comfort.
  • the signal quality In order to be able to determine real stress states or stress states of the test person, the signal quality must also be consistently high even during intensive sporting movement.
  • US 4,122,843 discloses a belt with three disc-shaped rubber electrodes, which can be used to record electrocardiograms.
  • One of the three electrodes is provided as a reference electrode.
  • Good contact between body and surface and electrodes is achieved here by a particularly high pressure with which the electrodes are pressed onto the surface of the body, which can impair comfort.
  • the chest strap should also be extremely comfortable to wear and can be used in a variety of ways.
  • the object is achieved by a medical chest strap according to claim 1.
  • a medical chest strap is provided with a signal detection device for detecting electrical signals on a body surface, which has two breast-side electrodes, preferably with a high input resistance, and a back-side reference electrode.
  • the electrodes on the breast side are non-adhesive and have a reinforcing layer with an electrical conductivity on the side facing the body, the reinforcing layer being capable of absorbing and releasing water.
  • the reference electrode is of such a large and flexible design that moisture emitted by the body accumulates between the reference electrode and the body and thus one creates low contact resistance between the body and the reference electrode.
  • the idea on which the invention is based is to largely suppress interference and noise in the electrical signals by means of the reference electrode on the back.
  • the combination according to the invention of the two breast-side electrodes, which have a high input resistance, with the back-side reference electrode allows the detection of complete heart excitation curves of the belt wearer.
  • the use of the breast-side electrodes has the advantage that when the wearer of the medical chest belt moves, the reinforcement layer releases water or moisture and thus suppresses a triboelectric effect. This considerably improves the signal quality, since interference due to electrical charging caused by the movement or friction between electrodes, chest strap material, wearing clothes and / or the body is greatly reduced.
  • the back-side reference electrode has a large area and is flexible and has conductive material. Due to the flexible design, the reference electrode on the back hugs the body of the wearer and thus ensures improved wearing comfort. As a result, it can have a large area, and it can easily be inserted into the medical chest strap according to the invention during the production process.
  • the embodiment of the reference electrode according to the invention has the advantage that, even in the case of clothing between the chest strap and the body surface, moisture between the reference electrode trode and the body arises, which increases the conductivity of the path between the reference electrode and the electrical signals on the body surface and thus creates better signal quality.
  • the reference electrode has carbon-impregnated silicone.
  • the chest strap has neoprene.
  • Neoprene is a versatile material used in the fitness area, which is easy to work with, is water-repellent and offers a high level of comfort.
  • the electrodes on the breast side can be plugged onto the chest belt. This makes it easy to remove and replace the breast electrodes if they are defective or to be replaced by electrodes from other manufacturers.
  • the chest strap according to the invention can thus also be used with adhesive electrodes.
  • the electrodes in the medical chest strap according to the invention are arranged in such a way that, when the chest strap is attached to the body, the breast electrodes on the left and right of the breastbone (sternum) rest on the lower costal arches, and the back reference electrode lies at least on one of the back muscles Spine.
  • This arrangement according to the invention has the decisive advantage that, particularly in the case of female wearers, the wearing comfort is particularly high because the chest area is not covered by the belt.
  • the position of the reference electrode on a muscle strand that offers a soft contact surface is advantageous because so the reference electrode is particularly well nestled and thus creates a particularly low contact resistance between the body and the reference electrode.
  • the signal detection device has a differential amplifier which outputs an electrical voltage between the two breast-side electrodes, the potential of the back-side reference electrode serving as the reference potential.
  • the use of the potential of the rear reference electrode as a so-called virtual ground largely eliminates interference from interference fields and increases the signal quality.
  • the signal detection device has an analog-digital converter for digitizing the electrical voltage and for outputting digital data.
  • an evaluation device for analyzing the digital data is advantageously provided, the evaluation device providing an evaluation result.
  • the evaluation device particularly advantageously creates a heart portrait.
  • a heart portrait is a colored three-dimensional representation of an electrocardiogram and signals the condition of the heart muscle and the intensity of the stress load on the heart being tested.
  • a transceiver for wireless transmission of the digital data or the evaluation result to an external receiving device.
  • This transceiver is advantageously a Bluetooth transceiver.
  • the evaluation device is advantageous coupled to the transceiver and executes external commands received from the transceiver.
  • the differential amplifier, analog-digital converter, transceiver and / or the evaluation device are preferably arranged between the breast-side electrodes.
  • the breast-side electrodes are arranged symmetrically around the signal detection device resting on the breastbone and are coupled to the differential amplifier via lines of the same length in each case. This symmetrical placement minimizes the distance to the respective breast-side electrode and is less prone to errors. Since the back-side reference electrode is used as a virtual ground, a longer connection path to it does not significantly interfere.
  • the chest strap has a diagonal shoulder strap which is fastened at a point adjacent to the front of the body and at a point adjacent to the back of the body on the circumference of the chest strap.
  • a diagonal strap improves wearing comfort and, at the same time, provides better protection against slipping and rubbing on the body surface for increased signal quality.
  • the chest belt circumference is advantageously composed of at least two modules which can be connected to one another.
  • parts, in particular modules, which carry the detection device or electrodes can be exchanged.
  • Figure 1 is an exemplary representation of the chest strap.
  • Fig. 3 is a block diagram of a signal detection device
  • Fig. 6 shows another embodiment of the chest strap.
  • a medical chest strap 1 which is made, for example, of neoprene, has a width of about 3 cm and has the length of a typical chest circumference.
  • a buckle 8 is provided for width adjustment.
  • further buckles for width adjustment for example on the side of the body, can also be provided.
  • the belt can also be made of very elastic material, so that the advantageous positions are achieved by "distorting" the belt.
  • Particularly preferred embodiments have a belt material that is multi-layered and enables wiring between the layers to be protected against external influences for evaluation. lead electronics.
  • a "double" version of the belt material has the advantage that parts of the signal detection device can be inserted in a pocket.
  • the belt is widened on the front side of the medical chest belt 1, that is to say the side which lies against the wearer's chest, in order to accommodate parts of the signal detection device 20.
  • the widened area 21 lies on the breastbone of the wearer.
  • two breast-side non-adhesive electrodes 2, 3 are provided, which are arranged approximately 12.5 cm from the widened area 21.
  • the chest electrodes 2, 3 lie on the lower rib arches of the wearer when the chest belt 1 is put on. These are non-adhesive electrodes that have a particularly high input resistance.
  • the widened locations 21 are preferably designed as a pocket that enables the signal detection device 20 to be removed easily.
  • the two breast electrodes are circular with a diameter of approx. 30 mm and have a male push button half on the side facing away from the body surface, which is spherically shaped.
  • the chest strap is made of two layers and has a 22mm slot at the points for the chest electrodes, which opens into a circular recess or opening of 8mm diameter. The slots are made parallel to the length of the belt.
  • the position of the chest strap material which forms the outside, i.e. does not rest on the body surface, indicates the sitions of the breast-side electrodes 2, 3, where the circular openings of the inner layer of the belt are, each have a female push-button half, which couples with the male push-button half of the respective electrode and establishes an electrical connection. Cables 19 are attached to the push buttons for connection to the signal detection device 20.
  • the electrodes are easy to replace and yet their arrangement is fixed to the chest strap by the push button positions.
  • the electrical connection via push buttons is also robust and easy to manufacture.
  • the rear-side reference electrode 4 which is preferably made of carbon-impregnated silicone, is arranged opposite the widened point 21.
  • the reference electrode is about 2.5 cm wide, about the width of the belt, and about 10 cm long. This large-area carbon-impregnated silicone reference electrode 4 lies with the chest strap on the back of the wearer on the muscle strands on the left and right of the spine.
  • the reference electrode 4 and the two chest electrodes 2, 3 are each connected to the signal detection device 20 with a shielded cable 17, 18, 19 with a line cross section of approximately 0.2 mm 2 .
  • the wiring 17, 18, 19 can also be done with a simple and preferably shielded microphone cable.
  • the large-area reference electrode 4 is firmly sewn to the material of the chest strap, for example neoprene or another fabric.
  • the breast-side electrodes 2, 3 are arranged on push buttons, which can simultaneously establish an electrical connection with the wiring 18, 19.
  • Fig. 2 shows the operation of the back-side reference electrode 4. Due to the flexible and large-scale design of the reference electrode 4, which rests on a body surface 6 of a body 7, moisture 5, for example by perspiration of the wearer during athletic movement, between the electrode and the Body accumulates.
  • the reference diode 4 is made of a water-impermeable plastic, for example silicone
  • the moisture 5 which is emitted by the body through the body surface 6 collects and leads to a particularly low contact resistance between the body 7 and the reference diode 4.
  • Carbon which is introduced into the plastic, is particularly suitable.
  • the reference electrode is alternatively composed of several parts, for example two carbon-impregnated silicone electrodes of about 80x40mm, which are attached to the belt so that they rest on the corresponding muscle strands.
  • an electrode made of carbon fabric can be used, which is itself integrated in the belt structure.
  • a strip of about 250x40mm is then placed on the back of the belt between the ends of the remaining belt terials sewn, riveted or otherwise attached.
  • the rivets can advantageously also serve as a connecting element between the electrode material (for example carbon fiber fabric or the aforementioned silicone electrode) and the wiring. Contact through riveting is particularly hard-wearing.
  • FIG. 3 shows a block diagram of a preferred embodiment of the signal detection device 20.
  • the signal detection device 20 has a differential amplifier 9, to which the breast-side electrodes 2, 3 are coupled, the potential of the reference electrode 4 serving as a so-called virtual ground as the reference potential.
  • the differential amplifier 9 supplies an amplified electrical voltage to an analog-digital converter 10, which digitizes the electrical voltage and outputs it as digital data 11 to an evaluation device 12.
  • the evaluation device 12 is coupled to a memory 22, which can be a flash RAM, for example.
  • the evaluation device 12 supplies an evaluation result 13, which is transmitted wirelessly 15 to an external reception device 16 via a transceiver 14.
  • the differential amplifier 9 receives the very weak electrical signals from the breast-side electrodes 2, which are referenced to the potential of the reference electrode 4, amplifies them and forwards them to the analog-digital converter 10.
  • the input signals are typically in the range of less than one millivolt.
  • the differential amplifier 9 raises these signals to a level of approximately one volt, so that these can be processed by the analog-digital converter 10.
  • the analog-to-digital converter 10 digitizes the data supplied by the differential amplifier 9, preferably with a resolution of 12 bits and a sampling rate of approximately 500 to 1000 samples per second. In order for these data to be considered reliable, the sampling rate should be at least 200 times the respective heartbeat rate. From about 120 samples per heartbeat, an analysis of the heights and the course of the heart stimulation curve is possible.
  • the digitized data 11 are processed by the evaluation device 12 and, if appropriate, stored in a buffer 22. Since the evaluation device 12 is coupled to the transceiver 14, it can also execute external commands which were transmitted wirelessly to the transceiver 14 by an external receiving device 16.
  • the evaluation device 12 can for example be designed as a digital signal processor or have a programmable processor.
  • the evaluation device 12 delivers a so-called heart portrait or the corresponding digital data as the evaluation result 13.
  • a heart portrait visualizes the
  • the evaluation device 12 can be designed as a digital signal processor that receives the digital data 11 first filters and carries out noise discrimination.
  • the ECG signal obtained in this way can now also be transmitted wirelessly directly to an external receiving device 16 by means of the transceiver 14, or can already be evaluated in the form of the aforementioned heart portrait in the signal detection device 20 and then transmitted to an external receiving device 16 via the transceiver 14 become.
  • commands can also be sent from the outside wirelessly via the transceiver 14 to the evaluation device 12, which then provides, for example, only the raw ECG data or pre-evaluated data. The transmission of data is therefore bidirectional.
  • the determination and evaluation of stress parameters requires a particularly high signal quality or quality of the electrocardiogram data. Therefore, the combination according to the invention of the breast-side electrodes 2, 3 and the back-side reference electrode 4 is particularly critical.
  • the chest strap can also be equipped with other commercially available chest electrodes.
  • an input amplifier or differential amplifier with a particularly high input resistance compensates for a poorer contact resistance between the respective electrode and the body surface.
  • a ratio of over about 20: 1 of input wi- the state of the differential amplifier on the contact resistance of the breast electrodes in a chest belt according to the invention provides signals of heart excitation curves which are suitable for further processing according to the invention.
  • a typical input resistance is approx. 70 megohms.
  • FIG. 4 shows a heart excitation curve of a test person (4A: resting test person, 4B: test person in motion), the curves being recorded on dry skin with two breast-side Hi-Q bioelectrodes and a reference electrode made of carbon-impregnated silicone.
  • FIG. 5 shows a heart excitation curve of a test person with damp skin (5A: resting test person: 5B: test person in motion), which was recorded with the same electrode combination as in FIG. 4.
  • the use of the Hi-Q bioelectrodes reduces interference with the signals due to the triboelectric or frictional electrical effect that occurs when electrodes are applied to the body surface. and slip and at the same time there is a high contact resistance.
  • This is suppressed in the use of the Hi-Q bioelectrodes according to the invention in that the corresponding breast-side electrodes 2, 4 have a reinforcement layer with an electrical conductivity on the side facing the body, the reinforcement layer being capable of absorbing water and giving off water. When the electrodes and thus also the reinforcement layer move, water is released towards the body surface 7 and good contact is established between the body 7 and the electrode 4.
  • the medical chest strap according to the invention has non-adhesive electrodes, use in the fitness area in particular is only possible.
  • the chest strap according to the invention can also be worn over sports clothing with a high degree of wearing comfort and yet detects electrical signals with sufficiently reliable quality, as a result of which the stress level or stress level of the heart or the athlete during the training of an athlete can be assessed overall.
  • Compared with commercially available heart rate monitor belts of the inventive medical chest strap allows an improved control and monitoring of the Ge ⁇ sundheitsShes of the carrier.
  • FIG. 6 shows a further preferred embodiment of the chest belt according to the invention.
  • a diagonal shoulder strap D is provided, which is attached to a point D1 adjacent to the front of the body and to a point D2 adjacent to the back of the body of the chest strap.
  • the diagonal strap is more comfortable because it is stretched over one of the wearer's two shoulders and tells the wearer that the belt cannot slide down.
  • the diagonal strap is sewn on, interwoven or connected to the base belt with any fastener that clings to the circumference of the body.
  • the base belt consists of three modules A, B, C, which can be connected to one another and thus form the circumference of the chest belt.
  • a first module carries the signal detection device 20 with the corresponding electronics or the transmission device, transceiver, analog-digital converter, evaluation device and differential amplifier as well as the appropriate power supply.
  • a second module B carries a first breast electrode 3 and the large-area reference electrode 4 with appropriate wiring.
  • the transition Y or the link Y (not explicitly shown here) between the modules A, B can, for example, as can happen with a push-button combination, ⁇ tall inconvenience snaps me the electrical connection Zvi ⁇ rule electrodes 3, 4 and the wiring and the signal detection apparatus 20 in the module A be produced.
  • Other usual plug connections are also possible.
  • the belt carrier material can be connected with Velcro fasteners or other conventional buckles or connecting means.
  • the second breast electrode 2 is provided in or on or on the third module C.
  • a connection X, Y, Z between the modules A, B, C is indicated schematically here by a dashed line. Snap fasteners, Velcro fasteners, buckles or buttons are only examples of possible connection means.
  • the medical chest strap is not limited to the dimensions shown in FIG. 1.
  • the use of a chest strap according to the invention is not limited to the human medical field, but can also be used in animals whose stress or fitness or state of health is to be monitored.
  • the chest strap according to the invention does not have to have the Hi-Q bioelectrodes mentioned.
  • Any type of non-stick electrodes can be used which has a sufficient electrical property, namely a frictional electrical one Effect suppresses and provides a good contact property with the body surface.
  • the breast electrodes can also consist of sensors with extremely high input resistances that detect an electrical potential even up to a few cm from the body, as described in "Remote detection of human electro-cephalograms and ultrahigh input impedance electric potential sensors" by CJ Harland, T.D. Clark, R.J. Prance in Applied Physics letters volume 81 (2002), pp. 3284 is reported.
  • the transmission technology of the transceiver is not limited to Bluetooth, but numerous other methods for wireless data transmission, such as ZigBee and radio frequency carriers are possible.
  • the analysis of the ECG data does not have to be in the form of a heart portrait, but other methods for determining stress parameters, for example from the analysis of the heart rate variability, are also conceivable.
  • modules of the chest strap in the modular embodiment can be adapted to any desired division.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Cardiology (AREA)
  • Physiology (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Electrotherapy Devices (AREA)

Abstract

L'invention concerne une ceinture thoracique médicale (1) qui comprend un dispositif de détection de signaux (2, 3, 4, 20) servant à détecter des signaux électriques sur une surface (6) du corps. Ce dispositif de détection de signaux est constitué de deux électrodes (2, 3), côté thorax, qui ne sont pas adhésives et qui présentent, sur la face orientée vers le corps, une couche de renfort électroconductrice qui peut absorber et dégager de l'eau. Ce dispositif comprend également une électrode de référence (4), côté dos, qui présente une grande surface et une souplesse telles que l'humidité dégagée par le corps (7) s'accumule entre l'électrode de référence (4) et le corps (7) et crée une faible résistance de transition entre le corps (7) et l'électrode de référence (4).
PCT/EP2005/002995 2004-03-22 2005-03-21 Ceinture thoracique medicale WO2005094673A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05731793A EP1776038A1 (fr) 2004-03-22 2005-03-21 Ceinture thoracique medicale

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004013931.8 2004-03-22
DE200410013931 DE102004013931A1 (de) 2004-03-22 2004-03-22 Medizinischer Brustgurt

Publications (1)

Publication Number Publication Date
WO2005094673A1 true WO2005094673A1 (fr) 2005-10-13

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ID=34964250

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Application Number Title Priority Date Filing Date
PCT/EP2005/002995 WO2005094673A1 (fr) 2004-03-22 2005-03-21 Ceinture thoracique medicale

Country Status (3)

Country Link
EP (1) EP1776038A1 (fr)
DE (1) DE102004013931A1 (fr)
WO (1) WO2005094673A1 (fr)

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CN106377247A (zh) * 2016-09-10 2017-02-08 天津大学 基于特征选择的心律失常分类方法
CN106473728A (zh) * 2015-08-28 2017-03-08 华硕电脑股份有限公司 穿戴式电子装置与心跳频率量测方法
CN108141124A (zh) * 2015-10-09 2018-06-08 三美电机株式会社 振动促动器、可佩戴式终端以及来电通知功能设备
CN111265208A (zh) * 2020-02-21 2020-06-12 心韵恒安医疗科技（北京）有限公司 腰带式智能健康参数监测设备及监测方法

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DE102014110476B4 (de) 2013-10-29 2015-10-29 Nordin Kouache Navigationsverfahren und Navigationssystem zur Übermittlung von taktilen Anweisungen an einen menschlichen Körper
CN112494280B (zh) * 2020-10-26 2023-05-16 上海大学 一种基于摩擦电的智能运动感知安全带

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CN106473728A (zh) * 2015-08-28 2017-03-08 华硕电脑股份有限公司 穿戴式电子装置与心跳频率量测方法
CN108141124A (zh) * 2015-10-09 2018-06-08 三美电机株式会社 振动促动器、可佩戴式终端以及来电通知功能设备
CN108141124B (zh) * 2015-10-09 2020-08-14 三美电机株式会社 振动促动器、可佩戴式终端以及来电通知功能设备
CN106377247A (zh) * 2016-09-10 2017-02-08 天津大学 基于特征选择的心律失常分类方法
CN106377247B (zh) * 2016-09-10 2019-10-15 天津大学 基于特征选择的心律失常分类方法
CN111265208A (zh) * 2020-02-21 2020-06-12 心韵恒安医疗科技（北京）有限公司 腰带式智能健康参数监测设备及监测方法

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