• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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    • 专利摘要:
    Portable measuring device (1) for non-invasively detecting bioelectric signals, in particular electrocardiogram (ECG) and heart rate information on the upper body of a test subject, wherein the measuring device (1) has a housing (4) with at least two measuring electrodes (2) passing through a housing wall (10) , 3) and the measuring electrodes (2, 3) are in conductive connection with a printed circuit board (5) arranged inside the housing (4), wherein the printed circuit board (5) has a processor device for receiving and at least partially further processing the measuring electrodes (2 , 3) has transmitted information. In order to enable a more efficient production and assembly of generic portable measuring devices (1) and a longer life therein integrated electronic components, it is provided according to the invention that the conductive connection between the board (5) and at least one measuring electrode (2, 3) each by a in the assembled state under biased spring element (7) is made. Inventive measuring devices (1) also prove to be largely insensitive to shocks in the context of sports activities.
    公开号:AT520401A1
    申请号:T353/2017
    申请日:2017-09-04
    公开日:2019-03-15
    发明作者:Dr Peter R Hauschild Mmag
    申请人:Mmag Dr Peter R Mmag Hauschild；
    IPC主号:
    专利说明:

    The invention relates to a portable measuring device for non-invasively detecting bioelectric signals, in particular electrocardiogram (ECG) and heart rate information on the upper body of a test subject, wherein the measuring device comprises a housing having at least two measuring electrodes passing through a housing wall and the measuring electrodes having one inside the housing arranged circuit board, wherein the circuit board has a processor device for receiving and at least partially processing the information transmitted via the measuring electrodes, according to the preamble of claim 1.
    Portable measuring devices of the aforementioned type are used in the health and fitness sector and are used in particular for the prevention and performance diagnostics. In their operational position, generic measuring devices are usually held in a chest belt, wherein the chest belt has corresponding receptacles for the measuring electrodes protruding from the measuring device. Integrated in the chest belt recordings or sensor elements are then in conductive contact with the measuring electrodes of the portable meter.
    In an alternative fastening variant, it is also possible to attach the portable measuring device directly to the skin of the test subject with an adhesive element (plaster or tape) - in such a case, the provision of a chest belt can be dispensed with. Such attachment by means of adhesive technology is due to the lower wearing comfort mainly for short-term investigations in question.
    Between the measuring electrodes, an electrical signal in the form of a potential difference is measured, this signal being transmitted to a circuit board with a processor device for further electronic processing. The electrical signals detected on the upper body of the test subject are, in particular, the electrical excitation which originates from the contractions of the cardiac muscle, more precisely from the so-called sinus node (Nodus sinuatrialis), which is located in the right atrium (atrium dextrum) of the heart and which the primary electrical clock is the heartbeat movement. The electrical voltage changes on the heart can be measured via measuring electrodes on the body surface and recorded over time.
    Such ECG (electrocardiogram) data obtained can be further processed with an associated HRV (heart rate variability) evaluator. The determination of heart rate variability (HRV) and associated physiological characteristics, i.a. Heart rate, QPA (pulse-to-breath ratio), VQ (vegetative quotient), SDNNRR (standard deviation of normal-to-normal intervals) is well known in the art and makes it possible to detect subtle changes in the regulatory system of the human body. The autonomic nervous system, also called vegetativum, regulates, among other things: heart activity, blood pressure, distribution of bloodstreams, breathing depth, respiratory rate, thermoregulation, glandular secretion and gastric and intestinal motility. It is divided into two subsystems, the sympathetic and the parasympathetic nervous system. The heart rate or heart rate is determined on the basis of time indices of detected R-R intervals. An R-R interval here refers to the distance between two R-waves of an electrocardiogram measured along the time axis and thus the time interval between two successive pulse waves or contractions of the heart muscle of the test subject.
    From the temporal variability of the R-R intervals, the heart rate variability (HRV) or corresponding HRV function parameters are determined by means of standardized mathematical operations. Heart rate variability represents a mathematical correlate for adapting the heart rate to changing requirements in the human organism and is regarded as an expression of neurovegetative regulatory capacity. The R-R intervals are e.g. measured in milliseconds [ms] and fluctuate i.d.R. between about 700 and 1200 ms. For an HRV frequency analysis, other interbeat intervals or derived indication sizes could be used instead of the R-waves or R-R intervals. To describe the tone of individual areas of the autonomic nervous system, a spectral analysis is performed. The measurement data of the heart rate are in this case transmitted by means of mathematical method from the time domain in the frequency domain and displayed as a power spectrum. In this way, various other frequencies present in the heart rate can be made visible, which are assigned empirically to specific body rhythms such as respiratory or blood pressure. ECG-based measuring devices or processor devices for determining HRV functional parameters according to the prior art are known e.g. from DE 603 06 856 T2 or DE 10 2006 039 957 B4). "- w" «···
    The test subjects may be humans as well as mammals such as, in particular, horses, dogs and cats. The measuring device is in each case arranged in the vicinity of the heart near the chest or back, i. in the area of the ribs or just above this. The detection and at least partial further processing of the signals or information received via the measuring electrodes take place on a circuit board held in the housing of the portable measuring device. Electronic circuits integrated on the board may communicate with any other memory devices, microprocessors, or output devices disposed internally or externally of the housing in a wired or wireless manner.
    In portable measuring devices according to the prior art, in particular, the conductive connection between measuring electrodes and board has been found to be a weak point. In the course of temperature changes and shocks - generic measuring devices are also used when walking and during sporting activities such. worn during jogging or cycling - this tends usually as a solder connection or by end soldered cable executed connection for corrosion, becoming brittle and thus unusable for the entire meter. Furthermore, the rigid (bolted) integration of the board in the housing of the meter has proven to be production-intensive and detrimental to the functionality and life of the circuits and memory modules.
    It is therefore the object of the present invention to enable a more efficient production of generic portable measuring devices as well as a longer service life of integrated electronic components therein. In particular, the measuring devices should be largely insensitive to shocks in the context of sporting activities.
    These objects are achieved by a portable meter with the characterizing features of claim 1. The dependent claims describe manufacturing and assembly technology advantageous embodiments of the invention. A generic measuring device for non-invasively detecting bioelectric signals, in particular of electrocardiogram (ECG) and heart rate information on the upper body of a test subject, comprises a housing having at least two measuring electrodes passing through a housing wall, the measuring electrodes being conductively connected to a circuit board disposed within the housing and wherein the circuit board 5 has a processor device for receiving and at least partially processing the information transmitted via the measuring electrodes. According to the invention, it is provided that the conductive connection between the circuit board and at least one of the measuring electrodes, preferably of all measuring electrodes, is produced in each case by a spring element which is prestressed in the assembled state.
    Due to the pressure force exerted by the spring element in its mounting position as a result of bending or compression, an elastic and permanent conductive connection is produced between the circuit board and measuring electrodes. A manufacturing and assembly technical advantage described in more detail below also results from the circumstance that the circuit board held in the measuring device can no longer be screwed to its permanent mounting, but can only be loosely inserted into the housing, where the board is then separated from the measuring electrodes and the board underside clamped spring elements is held in a predetermined position. A compound produced according to the invention proves to be particularly advantageous because generic measuring devices are also used in sports activities such as e.g. be worn while jogging or riding a bicycle on the body, and this occurring vibrations and micro-movements of the sensitive electronic components can be compensated by the bias of the spring element.
    For the articulation of the spring element between the board and measuring electrodes several variants are conceivable. In a preferred embodiment of the invention it is provided that the spring element with a first end portion on the board or on one of the board associated, i. is rigidly hinged (e.g., soldered or crimped or clamped) to this electrically conductive terminal and associated with a second end region on the measuring electrode or on one of the measuring electrodes, i. is loosely articulated with this conductive connection element, i. at this under mere bias voltage applied. Conversely, however, the spring element can also be articulated loosely with a first end region on the printed circuit board or on a connection element assigned to the printed circuit board, i. be present at this under mere bias, while it is rigidly articulated with a second end region on the measuring electrode or on a connection electrode associated with the connecting element.
    According to a further embodiment, it is also conceivable that the spring element in the region of its two end regions, i. is loosely hinged to both the board and the measuring electrode by one or more receiving or stop elements are provided within the housing, which hold the spring element in a position in which the first end portion loosely against the board or to the board associated Pressing connecting element, while the second end portion loosely presses against the measuring electrode or a connection electrode associated with the measuring electrode.
    The spring element may be formed at least in sections as a spiral spring, in particular as a leaf spring or as a spiral spring. In the case of a preferred embodiment as a spiral spring, the spring element may have an at least partially curved geometry in the relaxed or non-installed state. Such a configuration enables a solid contacting of associated measuring electrode-contact surfaces in the mounting position.
    In order to achieve a sufficient bias and buffer effect of the spring element in the mounting position, it is further provided according to a preferred embodiment that a between the board and one of the board facing, for contacting by the spring element first end portion of the measuring electrode measured distance and thus the minimum length of the spring element in mounting position more than 1 mm, preferably between 2 and 15 mm.
    Also, for reasons of sufficient preload structure of the spring element, it is provided according to a specific embodiment that a longitudinal axis of the measuring electrodes is substantially orthogonal to the planar extent of the board and the spring element is inclined to the measuring electrode longitudinal axis, preferably at an inclination angle α of 10 ° to 80 °.
    A production and assembly technology particularly advantageous embodiment of the measuring device according to the invention is obtained by the circuit board is loosely inserted in a housing comprising at least two housing parts or half shells, i. not by a rigid connection technique such as screws, soldering, gluing or the like. Connected to the housing, wherein the board is held by the resulting from the bias of the spring element contact pressure in a designated mounting position. By additional elements for positionally stable fixation of the board are thus no longer necessary, a more efficient production of generic measuring devices is made possible.
    A manufacturing and assembly technology particularly advantageous embodiment of the measuring device according to the invention results further by two housing parts or half shells of the housing accurately, preferably by means of a snap or clamp connection are juxtaposed, wherein the spring element in fully joined together position of the housing parts or shells is brought into a predefined compression or bending and thus in a desired bias.
    According to a preferred embodiment of the invention, it is provided that at least one of the measuring electrodes and / or the board has a receptacle provided for abutment of the spring element, in which an end portion of the spring element is held or finds a stop, wherein the receptacle preferably in the form at least a slot or a notch or a protruding from the measuring electrode or the board increase is executed, which surrounds an end portion of the spring element in the mounting position at least partially.
    The following is the description of an embodiment of the invention. Show here
    1 shows an inventive measuring device on an associated charging station in an isometric sectional view
    An exploded view of the housing parts of a measuring device according to the invention
    3 shows an inventive, arranged between the board and measuring electrodes spring element in detail view (detail A of Figure 1)
    4 shows a housing equipped with a measuring electrode of the measuring device according to the invention including charging station housing (without board)
    5 shows a housing equipped with a measuring electrode of the measuring device according to the invention including charging station housing
    6 shows a chest strap with electrode holders for holding measuring electrodes
    7 shows a bottom view of a measuring device according to the invention
    8 is a sectional view of the housing of the measuring device according to the invention (with board)
    9 shows a preferred embodiment of the spring element according to the invention in a detailed view FIG. 10 shows a section for contacting through the spring element according to the invention from FIG. 9 provided end section of the measuring electrode (view of the inside of the housing)
    1 shows a portable measuring device 1 according to the invention, comprising a housing 4 consisting of a plurality of housing parts 4a-4d (see also exploded view according to FIG. 2), in which a circuit board 5, a battery 6 and any other electronic components and connecting elements are held. In the present representation, the measuring device 1 is currently docked to a charging station 8.
    The measuring device 1 has a plurality, preferably two measuring electrodes 2, 3 spaced apart from each other, between which a potential difference and thereby the heartbeat of the test subject, in particular the RR waves that appear in an electrocardiogram (ECG), are detected by means of a downstream detection device integrated on the circuit board 5 successive heartbeats of a test subject are detek-tier- and storable. The measuring device 1 or the circuit board 5 thus has the functionality of an ECG recorder with an associated HRV (heart rate variability) evaluation device and detects the electrical activity of the heart muscle. An evaluation software is stored on the circuit board 5 or on a storage device connected thereto, preferably in the form of a ROM.
    As can be seen in sectional views according to FIGS. 1 and 4, a housing wall 10 of the measuring device 1 or a first housing part 4 a of the housing 4 facing in the inserted position of the skin of the test subject is provided with a plurality of (in the present embodiment: two) openings 11 which protrude the measuring electrodes 2, 3 and protrude from the outside of the housing 4. The distance between the measuring electrodes 2, 3 is defined by the geometry of the housing 4 and the position of the apertures 11 fixed and is in the present embodiment, several centimeters. The measuring electrodes 2, 3 are made of a conductive material, preferably of metal such as e.g. Made of aluminum or steel, but could be made of a conductive plastic. 3, the measuring electrode 2 consists of two electrode members 25, 26 pressed or soldered together. The two electrode members 25, 26 each have an approximately rotationally symmetrical about a longitudinal axis 16 of the measuring electrode 2, 3 extending geometry and have cylindrical Sections on which are inserted into each other.
    Both the first electrode member 25 and the second electrode member 26 have a bent, substantially orthogonal to the measuring electrode longitudinal axis 16 extending flange portion, wherein the flange portion of the first electrode member 25 abuts the inside of the housing wall 10, while the flange portion of the second electrode member 26 at the outside of the housing wall 10 abuts. The flange portions of the electrode members 25, 26 in this case do not have to contact the housing wall 10 directly, but may rest against it also with the interposition of washers or other support elements. In the mounting position of the measuring electrode 2, 3, the two flange portions clamp the housing wall 10 in a peripheral area to the opening 11 and are thus anchored stable to the housing 4. However, the measuring electrodes 2, 3 could also be designed as one-piece or multi-membered or made up of more than two electrode members 25, 26. In this case, the measuring electrodes 2, 3 could also be provided in each case with only one flange section, which abuts either on the inside or on the outside of the housing wall 10 and there, for example. glued or fixed by another connection technique.
    The second end sections 24 of the measuring electrodes 2, 3, which are projecting towards the outside or are repelled by the board 5, are approximately button-shaped or partially dome-shaped. In order to bring the measuring device 1 into use, it is integrated into a chest strap 12 shown schematically in FIG. 6, preferably clip-in. For this purpose, the chest belt 12 has electrode holders 18 with receptacles corresponding to the geometry of the second end sections 24 of the measuring electrodes 2, 3, into which the measuring electrodes 2, 3 protruding from the measuring device 1 are introduced and there solid by means of a press fit or latching connection Stop. The end portions 24 of the measuring electrode 2 and of the second electrode member 26, which are shown in FIG. 3 and are thickened relative to a central electrode section, can be latched to the electrode holders 18 of the chest belt 12 in the manner of a pressure or rivet button. The portable measuring device 1 can thus be brought by a linear pressure movement in the direction of the measuring electrode longitudinal axis 16 with the chest belt 12 in engagement or in use position (see arrow 27 in Figure 6), while it by a pulling movement into a 180 ° opposite direction again from the use position is solvable. As an alternative to this type of fastening, a rotating latching of the measuring electrodes 2, 3 into receptacles of the chest strap 12 provided for this purpose would also be conceivable, or an attachment of the measuring device 1 to the chest strap 12 by means of suitable wrapping means.
    In a detailed representation of the measuring electrode 2 according to FIG. 3, it can further be seen how between a cylindrical shank portion of the first electrode member 25 facing away from the board 5 and the button-shaped end portion of the second electrode member 26 a substantially rotationally symmetrical about the longitudinal axis 16 of the measuring electrode 2, 3 extending gap region 34 is present. In this gap region 34, a, preferably not shown in Figure 3, preferably annular stabilizing element such. a washer be inserted, since it is just that cross-sectional area of the measuring electrode 2, 3, which is in the course of latching into the electrode holders 18 of the chest belt 12 the most stressed or squeezed.
    When measuring device 1 and chest strap 12 are coupled together, the second end sections 24 of the measuring electrodes 2, 3 protrude, at least in sections, into a cross-sectional thickness of the chest belt 12, measured substantially parallel to the longitudinal axis 16 of the measuring electrodes 2, 3. In a conventional embodiment, however, the second end sections 24 of the measuring electrodes 2, 3 do not fully penetrate the cross-sectional thickness of the chest belt 12, but are only slightly distanced from the underside 12a of the chest belt 12 facing the skin of the test subject in the deployed position. A distance measured in the mounting position between outermost end faces of the test object facing the second end sections 24 of the measuring electrodes 2, 3 may be e.g. 1 to 5 mm. Said distance between the underside 12a of the chest belt 12 and the extreme end surfaces of the measuring electrode end portions 24 is usually filled with a conductive material or the chest belt 12 may have specially provided conductive areas in this cross-sectional area assigning the skin of the test subject, which is an integral part the electrode holder 18 are or are in conductive contact with these. In a preferred embodiment, the second end sections 24 of the measuring electrodes 2, 3 projecting from the housing 4 of the portable measuring device 1 are surrounded by the electrode holders 18 or are embedded in the insert position substantially on all sides.
    The second end portions 24 of the measuring electrodes 2, 3 are in a preferred embodiment of the outside of the housing wall 10, e.g. by several millimeters, but with a corresponding construction of the chest belt 12 can also be substantially flush with the housing 10 or taken in designated wells of the housing 4, this may also be set back behind the outside of the housing 10 in the direction of the board 4. For a reliable detection of the electrical signals emitted by the body of the test subject, it is not absolutely necessary for the measuring electrodes 2, 3 to be in direct, conductive contact with the skin of the test subject. On the other hand, the test subject facing end portions 24 of the measuring electrodes 2, 3 may also be slightly spaced from the skin surface of the test subject, without this affecting the reception of the radiated from the organism of the test subject electromagnetic pulses.
    Integrated in the chest belt, the skin surface of the test subject facing sensor elements are in use position in conductive contact with the measuring electrodes 2, 3 of the portable meter 1, wherein the measuring electrodes 2, 3 are in turn in conductive connection with the board 5. The sensor elements of the chest belt 12 are usually made of electrically conductive plastic electrode surfaces, which are incorporated in the material of the chest belt 12. The conductive sensor elements or electrode surfaces of the chest belt 12 are limited in area and isolated from one another by an otherwise dielectric material layer. The chest strap 12 itself may be made of any plastic or textile material, is preferably elastic and can be variably adjusted by means of a buckle element or hook and loop fastener with respect to its length wrapped around the thorax of a test subject. It would also be possible to attach the measuring device 1, with its housing wall 10 having the measuring electrodes 2, 3, directly to the upper body of the test subject by means of a plaster / adhesive strip.
    According to the invention, it is provided that the conductive connection between the circuit board 5 and the measuring electrodes 2, 3 is produced in each case by a spring element 7 which is prestressed in the assembled state (see FIGS. 3 and 9). As a spring element in the present context, any elastically deformable component is understood, which is suitable due to compression, bending or other compression in a designated mounting position to exert a defined force on one or more associated connection elements or contact surfaces. The spring element 7 may be constructed in one piece or multi-membered and, e.g. a pedestal or plunger element, which is pressed by a spring in a certain direction. In a preferred embodiment, a spring element 7 per measuring electrode 2, 3 is arranged. However, it is also possible to provide a plurality of spring elements 7 per measuring electrode 2, 3.
    The spring element 7 is preferably designed as a spiral spring or as a spiral spring or may have any geometry having spring element 7 one or more leaf or spiral spring-shaped sections. As bending and leaf springs in the present context, all imaginable elongated components are understood to mean a cross-sectional thickness which is small in relation to their longitudinal extent and which are suitable for exerting a defined force effect under bending or compression. The bending spring does not necessarily have to be designed as a straight, strip-shaped element, but may also have an at least partially curved geometry. 9 shows a particularly advantageous embodiment variant of the spring element 7 according to the invention, in which it has a convexly curved section 29 in its end region 7b facing the measuring electrode 2, 3, which is provided for conductive contacting of the first end section 23 of the measuring electrode 2, 3. The apparent in Fig.10 end portion 23 of the measuring electrode 2, 3 has a flange-like geometry as well as in the sectional view of Figure 3 can be seen, wherein the flange portion of the measuring electrode 2, 3 is provided with recesses or a profiling 30.
    The spring element 7 shown in purely exemplary manner in FIG. 9 is rigidly fastened, preferably soldered, to its first end region 7a on a metallic connection element 28 of the circuit board 5, wherein the free, convexly curved section 29 of the spring element 7 is mounted in the direction of the measuring electrode 2, 3 bulges. In the present exemplary embodiment, the convexly curved section 29 has a substantially constant width, measured transversely to the longitudinal axis 17, so that it is thus a substantially half-shell-shaped component section which protrudes with respect to a central region 7c of the spring element 7. In the present embodiment, the curved portion 29 is formed by a deep-drawn portion of the spring element 7, which was laterally released by two in plan view of the spring element 7 substantially parallel to the spring element longitudinal axis 17 and also substantially parallel slots, but in the area its extending substantially orthogonal to the slots end portions each integrally connected to the spring element 7 remains. Due to the partially cylindrical geometry of the spring element 7 results in mounting position with the first end portion 23 of the measuring electrode 2, 3 thus a line contact. The second end region 7b of the spring element 7 facing the measuring electrode 2, 3 could also have a modified or a completely different geometry, e.g. pombiert, button-shaped, cranked, pedestally protruding or be flattened at a provided for contacting with the measuring electrode 2, 3 point.
    As spring elements 7 can be used in particular, but not exclusively, the following types of springs: bending springs, torsion springs, coil springs, coil springs, leaf springs, wire springs, torsion springs, bar springs, wave springs, parabolic springs, elliptical springs, ring springs, disc springs and hybrid constructions of the aforementioned types of springs.
    The arrangement of the spring element 7 according to the invention between the circuit board 5 and measuring electrode 2, 3 can be done in various ways: First, it is possible, as shown in the embodiment according to the accompanying figures, the spring element 7 with its first end portion 7a on the board. 5 or assigned to one of the board 5, ie is rigidly connected to this conductive connecting element 28 or a corresponding first contact section (see Fig. 3 and Fig. 9), e.g. is soldered or crimped or clamped while associated with a second end region 7b on the measuring electrode 2, 3 or on one of the measuring electrodes 2, 3, i. is loosely articulated with this terminal in a conductive connection or a second contact portion (= the flange portion of the first electrode member 25 in the present embodiment), i. is present at this contact portion under mere bias. Conversely, however, the spring element 7 could also be rigidly connected to its second end region 7b at the measuring electrode 2, 3 or to a connecting element associated with the measuring electrode 2, 3, e.g. soldered or crimped or clamped while being loosely articulated with its first end portion 7a to the board 5 or to a terminal 28 associated with the board 5, i. rests on this under mere bias. Alternatively, it would also be possible for the spring element 7 to be located in the region of both end regions 7a and 7b, i. both on the circuit board 5 and on the measuring electrode 2, 3 is articulated only loosely. In order to dispense with such a rigid connection, however, it requires a suitable guide or holder, so that the spring element 7 is held at a predetermined position between board 5 and measuring electrode 2, 3 and exerts a compressive force on both aforementioned components. For this purpose, one or more receiving or stop elements may be provided within the housing 4 (not shown graphically), which hold the spring element 7 in a position in which the first end portion 7a of the spring element 7 loose against the board 5 or to one of Board 5 associated terminal member 28 presses, while the second end portion 7b of the spring element 7 loosely against the measuring electrode 2, 3 or one of the measuring electrode 2, 3 presses associated connecting element.
    The connection elements assigned to the circuit board 5 or the measuring electrodes 2, 3 may be e.g. to specifically for a conductive contacting provided socket elements or contact portions act (see in purely exemplary manner Pos.No. 28 in Figure 3 and Figure 9), which are preferably integrally connected to respective base components, preferably clamped to this, screwed, soldered or are glued.
    In the aforementioned receiving or stop elements, which hold the spring element 7 in its predetermined mounting position, it may be formed on the housing 4 or from a housing wall 10 into the housing protruding elements, which are preferably made in one piece with the housing 4 in injection molding technology. However, the at least one receiving or stop element can also be attached to the circuit board 5 or to the measuring electrode 2, 3 or protrude from them. The receiving or stop element can be designed in one or more parts and surrounds the spring element 7 in its mounting position at least in sections, e.g. in the form of a guide sleeve.
    The spring element 7 is made of a metallic material, preferably of a cut or punched out and any further processing steps such as bending, rolling, deep drawing, stamping, heat treatment and the like. Sheet metal piece or other form blank produced. The spring element 7 has a thickness between 0.3 and 3 mm. In the case of an embodiment of the spring element 7 as a bending or leaf spring, as set forth in the present embodiment, the leaf spring has a width between 1 and 10 mm and a length between 2 and 15 mm. The ratio width to length is more than 1: 2, preferably more than 1: 3. The thickness to width ratio of the leaf spring is also more than 1: 2, preferably more than 1: 5. In the case of a design as a spiral or coil spring, the outer diameter of the spiral / coil spring can be between 2 and 20 mm. It would also be possible to provide a plurality of spring elements 7 per measuring electrode 2, 3 or to construct a spring element 7 of a plurality of elastic components, optionally also in combination with rigid components.
    In order to achieve a sufficient bias and buffer effect of the spring element in the mounting position, it is provided that a between the board 5 and the board 5 facing, provided for contacting by the spring element 7 first end portion 23 of the measuring electrode 2, 3rd measured distance z (see Figure 3) and thus in the mounting position (ie in the compressed or prestressed state) measured minimum length of the spring element 7 is more than 1 mm, preferably between 2 and 15 mm.
    In a preferred embodiment according to FIG. 3, it is provided that a longitudinal axis 16 of the measuring electrodes 2, 3 runs essentially orthogonal to the planar extent of the board 5 (ie parallel to the thickness of the board 5 and furthermore also substantially orthogonal to a section of FIG Housing wall 10, which assigns the test subject's skin in use position). As can also be seen in FIG. 3, the spring element 7 does not run parallel but inclined to the measuring electrode longitudinal axis 16, preferably at an angle of inclination α between 10 ° and 80 °, particularly preferably between 30 ° and 60 ° (in the present embodiment: approximately 45 °) °). The longitudinal axis 17 of the spring element 7 need not necessarily intersect or converge with the longitudinal axis 16 of the measuring electrode 2, 3, but may also be arranged offset to the latter - the objective inclination angle α being in a side view or in an orthogonal to the measuring electrode. Longitudinal axis 16 extending viewing direction is measured.
    The use of a spring element 7 according to the invention further allows the manufacturing and assembly technical advantage that the processor-leading board 5 is loosely inserted in the housing 4, i. not by a rigid connection technique such as screws, soldering, gluing or the like. Must be connected to the housing 4. Here, the board 5 is held by the resulting from the bias of the spring element 7 contact pressure in a designated mounting position. The housing 4 is in this case provided on its inner side w "» * with a receptacle 31 corresponding to the geometry of the circuit board 5. Here, the board 5 is contacted at several points or surface areas of preferably integrally formed on the housing parts or half shells 4a, 4b, preferably web or frame-shaped component sections (see a sectional view of the empty housing 4 according to Figure 4 and Figure 5 and sectional view of the assembled with a board 5 housing 4 according to Figure 1).
    Instead of a single chip element, the circuit board 5 may also be designed in several parts or may be constituted by a combination of a plurality of circuit board elements or circuits carrying out interacting or independent processes. The board elements in this case can both side by side, i. be arranged substantially in a common plane as well as one above the other.
    As can be seen in an exploded view according to FIG. 2, the housing 4 comprises as base components a first housing part 4b (lower, facing the skin of the test subject) and a second housing part (upper, facing away from the skin of the test subject) 4b, which fits precisely , Preferably by means of a latching or clamping connection 15, in the manner of two half-shells are juxtaposed, wherein the spring element 7 is brought in fully assembled position of the housing parts 4a, 4b (Figure 1) in a predefined compression or bending and thus in a desired bias , The two housing parts 4a, 4b may be connected to each other by a screw connection. In FIG. 7 and FIG. 8, it is possible to see approximately a dome-shaped screw receptacle 32, which is manufactured in one piece with the second housing part 4b by the injection molding process. The screw receptacle 32 is provided with an internal thread, in which a the first housing part 4a passing through and on this with its screw head a stop-finding screw can be screwed. In the present embodiment, the two housing parts 4a, 4b are screwed together only on one side (in front view according to Figure 5: the right side) or in the region of the first measuring electrode 2, while the housing parts 4a, 4b on the opposite thereto on one side or in the region of the second measuring electrode 3 are merely locked together. By replacing the screw by a latching connection metal components are minimized, which could possibly lead to a disturbance of the data transmission of a arranged inside the housing 4 wireless transmission device (preferably Bluetooth).
    It would also be possible for the untrained user to be able to connect the two housing parts 4a, 4b solely by means of the latching or clamping connection 15 or corresponding connecting elements which can be coupled to one another by father / mother profiling. Such connecting elements are designed in one preferred embodiment in one piece with the housing parts 4a, 4b. Alternatively or in addition to the latching / clamping connection 15 or the screw connection, however, the housing parts 4a, 4b can also be replaced by another additional connection technique, such as e.g. Gluing or welding are connected together.
    The housing 4, which is preferably made of plastic or of a light metal such as aluminum, furthermore comprises a cover part 4d which can be placed on the second (upper) housing part 4b and which has a peripheral geometry which is approximately congruent with the two housing parts 4a, 4b in plan view and which likewise has an arbitrary connection technology, Preferably by gluing or locking on the adjacent second housing part 4b is fixed. The cover 4d is made of translucent plastic, which is transilluminable by an LED illumination arranged inside the housing or by other lamps according to its transmittance.
    Since the measuring device 7 according to the invention is also used in the outdoor area, e.g. while sports activities are used, sealing elements are arranged in the region of adjacent housing parts. Between the second housing part 4b and the cover part 4d is about a sealing intermediate layer 4c made of elastic material inserted (schematically indicated by dashed line in Figure 2). Likewise, suitable sealing elements, sealing compounds or adhesive layers are provided in the region of housing openings, in particular in the region of the openings 11 provided for the measuring electrodes 2, 3 and further interfaces 33 for battery charging, measurement data transmission and software updates as shown in FIGS Prevent moisture from entering the interior of the housing 4.
    Various modifications of the embodiments described above are possible without departing from the basic idea of the invention. Thus, although a compression spring is preferably used as the spring element 7, it would also be conceivable to use a tension spring, such as a helical tension spring, which is used, for example. is hinged by means of a hooking both on the board 5 and on the measuring electrode 2, 3 and pulls in the sequence, the two aforementioned components to each other. In this case, a distance z measured between the circuit board 5 and the first end section 23 of the measuring electrode 2, 3 would be greater than a longitudinal extent of the helical tension spring measured in the relaxed state. Instead of a (helical) helical tension spring, it would also be conceivable to clamp a bent spring leaf between circuit board 5 and measuring electrode 2, 3, which is stretched in its assembled state beyond its original shape embossing and thus also a tensile force on both the circuit board 5 and on the measuring electrode 2, 3 exercises.
    It can further be provided that at least one of the measuring electrodes 2, 3 or / and the board 5 has a specially provided for conditioning the spring element 7 receptacle 13, in which an end portion of the spring element 7 is held or finds a stop, the receptacle 13th preferably in the form of at least one slot or a notch or a protruding from the measuring electrode 2, 3 and the board 5 increase, eg a web-shaped bulge is executed which surrounds an end region 7a, 7b of the spring element 7 in the assembly position at least in sections. The measuring device 1 may further be equipped with more than two measuring electrodes 2, 3 and, e.g. comprise three or four mutually spaced measuring electrodes, which are either all aligned to the same measurement parameters and the detection of the electrical curve of the heartbeat, or the ECG signal or other biophysiological measurement parameters such as detecting the electrical activity of muscles or an EMG signal.
    Depending on the performance or equipment level of the circuit board 5, it may be provided that the bioelectrical signals detected via the measuring electrodes 2, 3 are processed further directly in the measuring device 1 and / or in an external processor device connected to the measuring device 1 in wireless or wired data connection. to HRV function parameter values. The computing power for further processing of the detected bioelectric signals can also be split or processed several times between the board 5 arranged in the portable measuring device 1 and one or more external processor or server devices. In a preferred embodiment, biophysical information, such as heart rate information and HRV function parameters, which require relatively low computing power, is generated directly in the portable meter 1, while biophysical information, which is calculated by complex algorithms or requires a higher computing power, is determined on an external processor device become. The information generated directly in the portable meter 1 may be transmitted to a respective user e.g. be made available virtually in real time via a visual display. However, it would also be possible to have biophysical information computed on the external processor device in turn transmitted to the portable meter 1 or to a corresponding user-carried output device, such as a portable meter. to transmit an electronic bracelet or a smart watch or to a smartphone and thus to provide the user during the activity carried out by him a feedback about his vital signs or a differentiated performance analysis. Biophysical information determined in the measuring device 1 can also be transmitted without detour via a server device directly to an external, user-carried output device. The data transmission may in such case be wireless, e.g. via Bluetooth or mobile standard. Alternatively or in addition to the visual display of various biophysical information e.g. By means of an LED display can also be provided an acoustic output or an output by a vibration device.
    The portable measuring device 1 and the charging station 8 are adhered to each other by means of a magnetic holding device 9. The magnet holding device 9 comprises at least one permanent magnet element 20 and at least one associated counterpart 21 magnetically attracted by the permanent magnet element 20 or a so-called holding ground. In this case, the permanent magnet element 20 can be arranged on the side of the measuring device 1 and the counterpart 21 on the side of the charging station 8 or vice versa. The permanent magnet element 20 and the counterpart 21 are each designed as substantially plate-shaped elements which are held in corresponding receptacles 22, 22 'of the measuring device housing 4 or their housing wall 10 and the charging housing 14 or the charging station housing wall 19 , eg glued or screwed (see Fig.1). The measuring device 1 has in plan view of the housing parts 4a-4d a cross-sectional area of more than 10 cm 2, its dimensions according to the present embodiment are 60 x 35 x 11 mm (W x H x T). The battery 6 shown schematically in Figure 1 can be designed as permanently installed element or as a replaceable battery of any type or design and also in several parts. In the present embodiment, the battery 6 is formed as a lithium-polymer battery with a supply voltage of 3 V.
    权利要求:
    Claims (10)
    [1]
    1. Portable meter (1) for non-invasively detecting bioelectric signals, in particular of electrocardiogram (ECG) and heart rate information on the upper body of a test subject, wherein the measuring device (1) has a housing (4) with at least two measuring electrodes (10) passing through a housing wall (10). 2, 3) and the measuring electrodes (2, 3) are in conductive connection with a printed circuit board (5) arranged inside the housing (4), wherein the printed circuit board (5) has a processor device for receiving and at least partially further processing the data via the measuring electrodes ( 2, 3) has transmitted information, characterized in that the conductive connection between the circuit board (5) and at least one measuring electrode (2, 3) is in each case produced by a prestressed in the assembled state spring element (7).
    [2]
    2. portable measuring device (1) according to claim 1, characterized in that the spring element (7) with a first end portion (7a) on the board (5) or on one of the board (5) associated, connecting element is articulated rigidly and with a second end portion (7b) on the measuring electrode (2, 3) or on a measuring electrode (2, 3) associated with the connection element is loosely articulated, ie at this under mere bias voltage applied.
    [3]
    3. portable measuring device (1) according to claim 1, characterized in that the spring element (7) with a first end portion (7a) on the board (5) or on one of the board (5) associated, connection element is loosely articulated, i. at this under a mere bias voltage applied and with a second end portion (7b) on the measuring electrode (2, 3) or on one of the measuring electrode (2, 3) associated with the connection element is rigidly articulated.
    [4]
    4. Portable measuring device (1) according to claim 1, characterized in that the spring element (7) in the region of its two end regions (7a, 7b), i. both on the circuit board (5) and on the measuring electrode (2, 3) is loosely articulated by within the housing (4) one or more receiving or stop elements are provided which hold the spring element (7) in a position in in which the first end region (7a) presses loosely against the printed circuit board (5) or onto a connecting element assigned to the printed circuit board (5), while the second end region (7b) loosely bears against the measuring electrode (2, 3) or one of the measuring electrodes (2, 3) ) associated connection element presses.
    [5]
    5. portable meter (1) according to one of claims 1 to 4, characterized in that the spring element (7) is at least partially formed as a spiral spring, leaf spring or coil spring, wherein the spring element (7) in the case of an embodiment as a bending spring preferably also in the relaxed or non-installed state has an at least partially curved geometry.
    [6]
    6. portable measuring device (1) according to one of claims 1 to 5, characterized in that between the board (5) and one of the board (5) facing, for contacting by the spring element (7) first end portion (23) of the measuring electrode (2, 3) measured distance (z) and thus the minimum length of the spring element (7) in the mounting position more than 1 mm, preferably between 2 and 15 mm.
    [7]
    7. portable measuring device (1) according to one of claims 1 to 6, characterized in that a longitudinal axis (16) of the measuring electrodes (2, 3) is substantially orthogonal to the planar extension of the board (5) and the spring element (7) inclined to the measuring electrode longitudinal axis (16), preferably at an inclination angle α of 10 ° to 80 °.
    [8]
    8. portable meter (1) according to one of claims 1 to 7, characterized in that the board (5) is loosely inserted in a at least two housing parts or half-shells (4a, 4b) comprising housing, wherein the board (5) is held by the bias of the spring element (7) resulting- contact pressure in a designated mounting position.
    [9]
    9. portable measuring device (1) according to one of claims 1 to 8, characterized in that two housing parts or half-shells (4a, 4b) of the housing (4) fit, preferably by means of a latching or clamping connection (15), are joined together , Wherein the spring element (7) is brought in fully assembled position of the housing parts or half-shells (4a, 4b) in a predefined compression or bending and thus in a desired bias.
    [10]
    10. Portable meter (1) according to one of claims 1 to 9, characterized in that at least one of the measuring electrodes (2, 3) and / or the board (5) has a for abutment of the Federeiementes (7) provided receptacle (13) in which an end region of the spring element (7) is held or finds a stop, wherein the receptacle (13) preferably in the form of at least one slot or notch or one of the measuring electrode (2, 3) and the board (5) projecting Increasing is executed, which surrounds an end region (7a, 7b) of the spring element (7) at least in sections.
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    同族专利:
    公开号 | 公开日
    AT520401B1|2021-04-15|
    DE202018004067U1|2018-11-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20170011210A1|2014-02-21|2017-01-12|Samsung Electronics Co., Ltd.|Electronic device|
    JP3946108B2|2002-08-27|2007-07-18|パイオニア株式会社|Heart rate variability analyzer, heart rate variability analysis method, and heart rate variability analysis program|
    DE102006039957B4|2006-08-25|2012-08-16|Biosign Gmbh|Method for evaluating heart rate variability|CN111184507A|2019-03-12|2020-05-22|深圳碳云智能数字生命健康管理有限公司|Miniature electrocardio collection equipment, collector and host computer|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA353/2017A|AT520401B1|2017-09-04|2017-09-04|Portable measuring device for the non-invasive acquisition of bioelectrical signals|ATA353/2017A| AT520401B1|2017-09-04|2017-09-04|Portable measuring device for the non-invasive acquisition of bioelectrical signals|
    DE202018004067.3U| DE202018004067U1|2017-09-04|2018-09-03|Portable meter for non-invasive detection of bioelectric signals|
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