WO2014194693A1

WO2014194693A1 - Electrocardiogram measuring instrument

Info

Publication number: WO2014194693A1
Application number: PCT/CN2014/072018
Authority: WO
Inventors: 王耀兴; 刘少志
Original assignee: 北京丰拓生物技术有限公司
Priority date: 2013-06-07
Filing date: 2014-02-13
Publication date: 2014-12-11

Abstract

Disclosed is an electrocardiogram measuring instrument, comprising a circuit board (101), a main body bracket (102) and a back encapsulation. The circuit board (101) is fixed to the main body bracket (102) by means of the back encapsulation. The circuit board (101) comprises an external electrode and a processing circuit, wherein the processing circuit comprises an electrode circuit which is connected to the external electrode; and the external electrode comprises a positive touch electrode (108), a back feedback touch electrode (104, 105), and a negative touch electrode (109). The positive touch electrode (108) is connected to a positive electrode of the electrode circuit, the negative touch electrode (109) is connected to a negative electrode of the electrode circuit, and the back feedback touch electrode (104, 105) is connected to a feedback electrode of the electrode circuit; and the electrode circuit is used for detecting an electrical signal of a patient under measurement. The electrocardiogram measuring instrument is used for providing a service of measuring electrocardiographic waveforms for patients who need the electrocardiographic waveform measurement because of palpitation or polypnea, etc. at any time.

Description

ECG measuring instrument

Technical field

The present invention relates to the field of medical devices, and in particular to an electrocardiograph that is convenient to carry around and can measure an electrocardiogram waveform in time. Background technique

In modern life, people are paying more and more attention to the protection of physical health. For daily life, there are palpitations, fatigue, shortness of breath, etc., or dyspnea; when you are tired or nervous, sudden post-sternal pain or chest tightness is felt; pulse pulsation, slowness, shortness or irregularity often occur; In the process of sleeping or doing nightmares, you will suddenly wake up, feel palpitations, chest tightness, poor breathing, need to sit up for a while to get better; feel difficulty breathing, chest tightness or chest pain during sex life; full meal, cold, smoking, watching the plot of tension Or when you are on TV, feel palpitations, chest tightness or chest pain; in public places, it is easy to feel chest tightness, poor breathing and insufficient air; when you go upstairs, you are more likely to have palpitations and shortness of breath than before or more than others; suddenly there is a palpitations, dizziness, and in front of your eyes. Black, there is a feeling of falling; when there is an abnormal sound in the heartbeat when resting, or there is a tremor when the hand touches the heart of the chest wall, the patient often feels subconsciously that something is wrong with his heart; indeed, These phenomena may have been early symptoms of heart disease.

Because the above phenomenon is often an accidental event for most patients, it is impossible to seek medical treatment at the time of onset. Afterwards, the doctor can only state the feelings of the body at the time, and the conventional ECG waveform is not abnormal; even if Hol is carried on the back Ter (Dynamic Electrocardiograph) For 24-hour continuous monitoring and measurement, it is difficult to capture an effective diagnosis basis for one or several ECG waveforms, but the patient occasionally has obvious symptoms.

At present, there is no research and development of a portable electrocardiograph in the prior art, and the electrocardiographic waveform is measured at any time in the case of a patient suffering from symptoms such as palpitations or shortness of breath. The present invention proposes an electrocardiograph. SUMMARY OF THE INVENTION An object of the present invention is to provide an electrocardiograph that allows a patient to provide a measurement of an electrocardiogram waveform at any time when a patient experiences symptoms such as palpitations or shortness of breath that require measurement of an electrocardiographic waveform. Service.

In order to achieve the above object, the present invention provides an electrocardiograph comprising a circuit board, a main body bracket and a back package; the circuit board is fixed to the main body bracket by the back package; the circuit board includes an outer portion An electrode and a processing circuit; wherein the processing circuit comprises: an electrode circuit connected to the external electrode, the external electrode comprising a positive touch electrode, a back feedback touch electrode, and a negative touch electrode; the positive touch electrode is connected to the a positive electrode of the electrode circuit, the negative touch electrode is connected to the negative electrode of the electrode circuit, the back feedback touch electrode is connected to the feedback electrode of the electrode circuit; and the electrode circuit is used for detecting the electric power of the test subject a filter circuit connected to the electrode circuit for detecting an electrical signal of the subject detected by the electrode circuit Filtering noise; the feedback electrode is configured to cooperate with the positive electrode and the negative electrode to filter a clutter signal entering a front end of the filter circuit; and an amplifying circuit connected to the filter circuit for outputting the filter circuit The electrical signal is amplified; an A/D converter is connected to the amplifying circuit for converting the amplified electrical signal from the analog signal into a digital signal; the CPU is connected to the A/D converter, Processing the digital signal to measure the electrocardiographic waveform of the subject.

Preferably, the circuit board further includes a timer connected to the CPU for automatically timing and transmitting timing data to the CPU in real time.

Preferably, the circuit board further includes a communication circuit connected to the CPU, and is configured to upload the measured ECG waveform to the host computer according to the relevant instruction.

Preferably, the electrocardiograph further includes an operation unit connected to the CPU, and the operation unit is configured to

The CPU sends various operation button signal commands, and the CPU is further configured to receive various operation button signal commands issued by the operation unit, and perform corresponding processing according to the received various operation button signal commands.

Preferably, the electrocardiograph further includes an external storage medium connected to the CPU after inserting a socket for placing the external storage medium, and the external storage medium is used for temporarily storing the measured ECG waveform.

Preferably, the electrocardiograph further includes a display unit connected to the CPU, displayed and controlled by the CPU, and the display unit is configured to display data output by the CPU.

Preferably, the positive touch electrode, the back feedback touch electrode and the negative touch electrode are implemented on the subject

Measurement of ECG waveforms in leads I, II, III.

Preferably, the circuit board is fixed on the main body bracket by the back package, the circuit board is disposed on a front surface of the main body bracket, and the back package is disposed on a back surface of the main body bracket; The bracket is hollowed out, and through the hollow portion of the main body bracket, the electronic components on the circuit board are respectively respectively fit between the back surface of the circuit board and the back package.

Preferably, the electronic components are all disposed on a back surface of the circuit board.

Preferably, the back feedback touch electrode includes a back left touch feedback electrode and a back right touch feedback electrode, and the back left touch feedback electrode and the back right touch feedback electrode are respectively connected to the feedback electrode of the electrode circuit; the positive touch The electrode includes an oncoming positive touch electrode and a back positive touch electrode respectively connected to the positive electrode of the electrode circuit; the negative touch electrode includes an oncoming negative touch electrode and a back negative touch electrode, The front negative touch electrode and the back negative touch electrode are respectively connected to the negative electrode of the electrode circuit; and the back left feedback touch electrode and the back right feedback touch electrode are respectively disposed on the left and right sides of the back of the main body bracket a lower front corner; the back positive touch electrode and the back negative touch electrode are respectively disposed at left and right upper corners of the back of the main body bracket. Preferably, the back package includes a back support and a four-back touch electrode, and the four-back touch electrode includes the back left touch feedback electrode, the back right touch feedback electrode, the back positive touch electrode, and the back negative touch electrode; The back left touch feedback electrode, the back right touch feedback electrode, the back positive touch electrode, and the back negative touch electrode are disposed around the back bracket.

Preferably, the outer edge and the top corner of the back touch electrode are arc chamfered.

Preferably, the back support comprises a one-piece body and a plurality of protrusions, and a plurality of the protrusions are respectively perpendicular to the sheet-like body; the main body bracket is correspondingly provided with a blind hole for engaging a plurality of the protrusions The back bracket is fastened to the back of the main body bracket, and the back bracket and the main body bracket are fixedly connected by a plurality of the protrusions being respectively embedded in the blind holes.

Preferably, the back bracket is made of a metal material, and the back bracket is integrally molded with the main body bracket.

Preferably, the back touch electrode includes a horizontal engaging portion and a vertical welded portion, and the main body bracket is correspondingly provided with a through hole for engaging the vertical welded portion; the horizontal engaging portion is embedded in the back support portion The two sides of the outer corner, and the vertical soldering portion passes through the through hole to be soldered to the circuit board.

The electrocardiograph provided by the present invention adopts a circuit board including an external electrode and a processing circuit; wherein the processing circuit includes an electrode circuit for detecting an electrical signal of the subject, and is used for detecting the detected by the electrode circuit a filter circuit for filtering noise of an electric signal of the tester, an amplifying circuit for amplifying an electric signal outputted by the filter circuit, and an A for converting an electric signal amplified by the amplifying circuit from an analog signal to a digital signal a /D converter for the CPU for processing the digital signal, so that the patient can provide a portable electrocardiograph at any time when a heart attack or a shortness of breath is required to measure the electrocardiographic waveform. a service for measuring an electrocardiogram waveform;

Furthermore, by adopting a circuit board disposed on the front surface of the main body bracket, the back package is disposed on the back surface of the main body bracket, and through the hollow portion of the main body bracket, the electronic components on the circuit board are respectively fitted and placed on the back surface of the circuit board. The related technical solution between the back packages makes the device as a whole thinner. Further, the integrated device has the advantages of simple structure, convenient production and assembly, compact structure, and easy size miniaturization. carry.

The additional aspects and advantages of the invention will be set forth in part in the description which follows. DRAWINGS

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from

1 is an exploded perspective view showing an assembly structure of an electrocardiograph according to the present invention; 2 is a schematic structural view of a main body bracket of the electrocardiograph of the present invention;

3 is a schematic structural view of a breakpoint ring switch of the electrocardiograph of the present invention;

4 is a schematic structural diagram of a functional module of an electrocardiograph;

Figure 5 is a flowchart showing the execution of the program of the electrocardiograph of the present invention;

Figure 6a is a front elevational view showing a measurement mode of the electrocardiograph of the present invention;

Figure 6b is a rear view of a measurement mode of the electrocardiograph of the present invention;

Figure 7a is a front elevational view showing another measurement mode of the electrocardiograph of the present invention;

Figure 7b is a rear view of another measurement mode of the electrocardiograph of the present invention;

Fig. 8 is a schematic view showing another measurement mode of the electrocardiograph. detailed description

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative only and not to limit the invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "previous", "after",

The orientation or positional relationship of the indications "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings. The present invention and the simplification of the description are merely for the purpose of describing the present invention and the simplification of the invention, and the invention is not to be construed as limiting the invention.

It should be noted that the terms "first" and "second" are used for descriptive purposes only, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first", "second" may explicitly or implicitly include one or more of the features. Further, in the description of the present invention, "multiple" means two or more unless otherwise stated.

Embodiment 1

FIG. 1 is an exploded perspective view showing the assembled structure of the card type electrocardiograph according to the present invention. 2 is a schematic structural view of a main body bracket of a card type electrocardiograph according to the present invention. 1 and 2, the card-type electrocardiograph of the present embodiment includes a circuit board 101, a main body bracket 102, and a back package. The back package includes a back support 103 and four back touch electrodes. Specifically, the back support 103 includes a sheet-like body and six protrusions 1031. The six protrusions 1031 are respectively perpendicular to the sheet body and uniformly distributed thereon. The edge of the sheet-like body is provided with a blind hole for engaging the protrusions 1031 at a position corresponding to the six protrusions 1031 on the main body bracket 102, and can be buckled on the back surface of the main body bracket 102 through the back bracket 103 and the protrusions 1031 are embedded in the blind holes. The back bracket 103 and the main body bracket 102 are fixedly connected. Of course, the number of the protrusions 1031 can be adjusted according to the actual situation, as long as the protrusions 1031 are respectively perpendicular to the sheet-like body and uniformly distributed on the edge of the sheet-like body, and the positions of the corresponding protrusions 1031 on the main body bracket 102 are provided with the engagement. The blind hole of the protrusion 1031 is sufficient. Further, the back support 103 is preferably formed of a metal material, and the back support 103 and the main body support 102 can be fixedly connected by integral injection molding with the back support 103 in the process. In practice, if the back bracket 103 is a separate plastic member, the back bracket 103 and the main body bracket 102 are connected in a plugged manner, which easily makes the overall structural strength of the back bracket 103 and the main body bracket 102 difficult to ensure; if both the back bracket 103 and the main body bracket 102 are Integral injection molding with plastic material, in order to ensure the overall structural strength, according to the existing injection molding process conditions, the injection thickness of the entire area is at least lmm or more, which invisibly increases the overall thickness of the card-type ECG measuring instrument; Preferably, the back support 103 is made of a metal material. The structure of the main body support 102 is molded on the basis of the structure of the back support 103. The process is simple, the overall structural strength of the back support 103 and the main body support 102 is large, and the thickness of the back support 103 can be maintained. At 0.3 mm, the overall thickness of the card-type ECG meter can be greatly reduced.

Further, the above four-back touch electrodes specifically include a back left feedback touch electrode 104, a back right feedback touch electrode 105, a back positive touch electrode 108, and a back negative touch electrode 109, and the back touch electrodes surround the back support 103 and are respectively independently The left and right upper corners of the main body bracket 102 are disposed at the left and right upper corners, and the left and right lower corners of the main body bracket 102. The back touch electrodes are not in contact with each other and are not in contact with the back bracket 103 due to the isolation structure of the skeleton of the back of the main body bracket 102. Wherein, the back left feedback touch electrode 104 and the back negative touch electrode 109 are the same body, the back right feedback touch electrode 105 and the back positive touch electrode 108 are the same body, the back negative touch electrode 109 and the back right feedback touch electrode 105, the back is positive The touch electrode 108 is a mirror-symmetric body; for the introduction of the four-back touch electrode, the following mainly describes the structure of the back negative touch electrode 109 and the connection manner thereof with the main body support 102. Specifically, the back negative touch electrode 109 includes a horizontal level. Engagement portions 1091, 109Γ and vertical welds 1092, 10 92', on the two sides of the right upper outer corner of the main body bracket 102, there are respectively provided card holes 1021, 102 卡 for engaging the horizontal engaging portions 1091, 109 Γ, and the upper right corner portion of the main body bracket 102 is respectively provided with a card for the card The through holes 1022, 1022' of the vertical soldering portions 1092, 1092' are combined, and the back negative touch electrodes 109 and the main body bracket 102 are respectively embedded in the card holes 1021, 102 、 through the horizontal engaging portions 1091, 109, and the vertical soldering portions 1092 1092 ' is fixedly connected through the through holes 1022, 1022'. As shown in FIG. 1, the circuit board 101 is provided with soldering holes 101 1 , 101 Γ , and the soldering holes 101 1 , 101 Γ and the through holes 1022 , 1022 Correspondingly, while the vertical welded portions 1092, 1092' pass through the through holes 1022, 1022', the tops of the vertical welded portions 1092, 1092' are respectively embedded in the welded holes 1011, 101 ,, and are spot welded The method can make the circuit board 101 originally disposed on the main body bracket 102 before assembly, and the upper right corner portion thereof is fixedly connected with the upper right corner portion of the main body bracket 102 through the back negative touch electrode 109. Similarly, the other corner portions of the circuit board 101 are connected to the main body bracket 102 in the same manner as the upper right corner portion and the main body bracket 102, and will not be described again.

Further, in the process of measuring the electrocardiographic waveform, in order to improve the comfort of the measurement posture, the outer edge and the apex angle of the back touch electrode may be set to a circular chamfer.

It should be emphasized here that before the card-type ECG is assembled, the circuit board 101 can pass through the main body bracket 102. The step 1025, which is formed in the same horizontal plane, is disposed in the main body bracket 102, and can be aligned with the circular holes 1014, 1014' through the cylinders 1024, 1024' to position the circuit board 101 at the inner edge of the main body bracket 102. Further, since the size of the circuit board 101 is only about 82 mm*52 mm, and the board is slightly thin (only 0.8 mm), for the strength of the circuit board 101, the corresponding main body bracket 102 is provided with a central support column 1026, the central support column. The top of 1026 is in the same horizontal plane as step 1025, so the central support post 1026 can be used to support the middle of circuit board 101 to enhance protection of circuit board 101.

Further, the top of the central support column 1026 can also be slightly higher than the step 1025, and the back surface of the circuit board 101 is provided with a blind hole groove (not shown in FIG. 1) to cooperate with the central support column 1026 to resist the central support column. The top of the 1026 can further position the circuit board 101 in the center of the main body bracket 102. The circuit board 101 can be more accurately attached to the main body bracket 102, which enhances the protection of the circuit board 101 and improves the overall strength reliability of the device.

In order to ensure the overall thickness design requirements of the card type electrocardiograph of the present embodiment, on the one hand, the electronic components on the circuit board 101 are required to be designed on the back side thereof, as shown in FIG. 1 and FIG. 2, because the main body bracket 102 is hollowed out. The electronic component can make full use of the space, and is disposed between the back surface of the circuit board 101 and the back package through the hollow portion of the main body bracket 102. Here, the "adhesively accommodating" can be understood as: The gap between the electronic component soldered on the circuit board 101 and the back package, that is, the height of the electronic component soldered on the circuit board 101 fully utilizes the distance between the back surface of the circuit board 101 and the back package; In addition to the front face positive touch electrode 106 and the oncoming negative touch electrode 107 suitable for thumb pressing on the front side of the circuit board 101, the front side of the circuit board 101 is not required to design electronic components. It is emphasized that the front face positive touch electrode 106 and the oncoming face here. The negative touch electrode 107 is not an electronic component, but merely serves as a metal piece for increasing the contact feeling and the contact area.

Further, the card type electrocardiograph further includes a strong seal for sealing the front surface of the circuit board 101. The strong seal 1 13 is made of plastic material, and has a strong adhesive on the back, and a strong seal 113 Electrode through holes 1 131, 1132 for disclosing the front positive touch electrode 106 and the front negative touch electrode 107 are reserved, and the thickness of the strong seal 113 and the oncoming positive touch electrode 106, oncoming surface are better for the overall packaging effect of the device. The thickness of the negative touch electrode 107 is equivalent. To further ensure the fit, durability and aesthetics of the front surface of the circuit board 101 on the front surface of the circuit board 101, the front side of the circuit board 101 and the front side of the main body support 102 are required. The frame is located on the same horizontal plane; on the other hand, the front surface of the circuit board 101 is required to be flat, and the above-mentioned circuit board 101 does not have electronic components on the front side to satisfy this requirement. Moreover, in order to satisfy the front surface of the circuit board 101, the card type electrocardiograph further includes a strip-shaped battery 110, and the circuit board 101 is provided with a battery hollow portion 1012 for attaching the accommodating strip battery 1 10, the above-mentioned disclosure The positive touch electrodes 106 and the electrode through holes 1131 and 1132 of the negative touch electrode 107 are respectively located on both sides of the battery hollow portion 1012, and the strip battery 110 is placed along the long side of the battery hollow portion 1012 against the back package. The other side is at the same level as the front surface of the circuit board 101; in addition, in order to meet the front surface of the circuit board 101, the card-shaped electrocardiograph also includes a buzzer 1 11 and a liquid crystal screen (Fig. 1 and FIG. 2 are not shown), the main body bracket 102 is provided with a buzzing groove 1027 for accommodating the buzzer 11 1 and a liquid crystal cell 1028 for engaging the liquid crystal panel, the liquid crystal cell 1028 is located above the buzzer slot 1027, and correspondingly the circuit board 101 is provided with a liquid crystal panel hollow portion 1013 for fitting and accommodating the liquid crystal panel. In the formed card type electrocardiograph, the buzzer 1 11 is set to the bee In the groin 1027, the liquid crystal panel is engaged in the liquid crystal cell 1028 through the liquid crystal panel hollow portion 1013 and supported by the buzzer groove 1027, and the liquid crystal surface of the liquid crystal panel engaged in the liquid crystal cell 1028 and the front side of the circuit board 101 Further, the strong seal 113 is provided with a window 1133 for transparently sealing the liquid crystal screen to facilitate observation of the liquid crystal screen; and, in order to satisfy the front surface of the circuit board 101, it is required to be flat: the structure of the negative touch electrode 109 with the back For example, the height of the portion of the vertical soldering portion 1092, 1092' whose through-holes 1022, 1022' are exposed at the top is limited to 0.8 mm or less, that is, the thickness of the circuit board 101 cannot be exceeded, or the vertical soldering portions 1092, 1092' dew Through hole 1022, the portion 1022 'and the top of the body frame of the front frame 102 at the same level, the same touch vertical welding electrode has a similar back to other claims.

Further, the buzzer groove 1027 is a split structure. It can be understood that the gap of the split structure is used to fit the line connecting the buzzer 11 1 and the circuit board 101, so as to fully utilize the space, thereby avoiding flying. The line traces increase the overall thickness of the card-type ECG meter. Furthermore, a main buzzing hole 1029 is provided at the center of the buzzer slot 1027, corresponding to the main buzzing hole 1029, and a sub-buzzing hole 1171 is provided on the sealing 117 for sealing the back bracket 103, the main bee The sound hole 1029 cooperates with the sub-buzzing hole 1171 to conduct the sound emitted by the buzzer 1 11. Furthermore, the above-mentioned seal 117 can be used to mark the nameplate of the card type electrocardiograph and various information and parameters that need to be marked.

Further, in order to ensure that the overall thickness design requirement of the card type electrocardiograph of the present embodiment is satisfied, on the one hand, the charging interface 112 included in the card type electrocardiograph of the embodiment fully utilizes the thickness of the main body bracket 102, and the connection thereof is utilized. The circuit board 101 is disposed in the charging interface through hole 1023 formed on the side of the main body bracket 102. On the other hand, the switching system of the card type electrocardiograph of the present embodiment is disposed on the front side of the device, due to the above embodiment. The front side of the circuit board 101 not only requires no design of electronic components, but also requires flatness. For this reason, the printed circuit board (copper etching technology) is provided with a first breakpoint ring switch 1015 for the switching power supply, and for starting Testing the measured second breakpoint ring switch 1016, as shown in FIG. 3 is a schematic diagram of the breakpoint ring switch structure of the card type electrocardiograph of the present invention, the first breakpoint ring switch 1015, or the second breakpoint The specific structure of the ring switch 1016 includes a ring electrode 144 and a circular electrode 115, and the circular electrode 115 is disposed in the ring electrode 114 and passes through The shaped trench 116 is insulated and concentrically disposed. Further, the first seal point ring switch 114 and the second break point ring switch 115 corresponding to the first break point ring switch 114 and the second break point ring switch 115 are respectively provided for turning on the first break point ring switch 114. The elastic switch 1 134 of the second breakpoint ring switch 115, specifically, the elastic switch 1134 is a dome-shaped elastic piece, and the elastic piece is pressed in a flattened state to make the ring electrode 114 and the circle The electrodes 115 are electrically connected.

The specific structure of the card type electrocardiograph according to the embodiment is illustrated in detail in FIG. 1 to FIG. 3. The circuit board is disposed on the front surface of the main body bracket, and the back package is disposed on the back surface of the main body bracket, and the main body bracket is disposed through the main body bracket.镂 The electronic components on the empty part of the circuit board are respectively attached to the relevant assembly schemes between the back surface of the circuit board and the back package, so that the device as a whole tends to be thinner in design; and, by setting the circuit board to be only about The size of the 82mm*52mm makes the device more compact. In addition, by placing the strong seal with a good fit, durability and aesthetics on the flat front side of the board, the overall device is further improved. It not only has a simple structure, convenient production and assembly, but also has a compact structure and is easy to carry around. It can provide heartbeat or shortness of breath at any time, and it is necessary to measure the symptoms of the electrocardiogram and provide a service for measuring the waveform of the electrocardiogram.

Embodiment 2

4 is a schematic structural view of a functional module of a card type electrocardiograph according to the present invention. As shown in Fig. 4, the card type electrocardiograph of this embodiment includes an external electrode, a processing circuit, and an operation portion. As shown in FIG. 1, the external electrode includes the oncoming positive touch electrode 106, the back positive touch electrode 108, the back left touch feedback electrode 104, the back right touch feedback electrode 105, the oncoming negative touch electrode 107, and the back negative in the above embodiment. The electrode 109 is touched. The operation portion includes a power button and a measurement button respectively corresponding to the switch system composed of the first breakpoint ring switch 1015, the second breakpoint ring switch 1016, and the respective elastic switches 1134 in the above embodiment.

The processing circuit includes: an electrode circuit corresponding to the front facing positive touch electrode 106, the back positive touch electrode 108, the back left feedback touch electrode 104, the back right feedback touch electrode 105, the front negative touch electrode 107, and the back negative touch electrode 109, wherein The positive touch electrode 106 and the back positive touch electrode 108 are connected to the positive electrode in the electrode circuit, the back left feedback touch electrode 104 and the back right feedback touch electrode 105 are connected to the feedback electrode in the electrode circuit, the negative touch electrode 107 and the back negative touch An electrode circuit of the electrode 109 is connected to a negative electrode in the electrode circuit, the electrode circuit is for detecting an electrical signal of the test subject; and a filter circuit is connected to the electrode circuit for detecting the test subject by the electrode circuit The electrical signal filters out the noise; the amplifying circuit is connected to the filtering circuit for amplifying the electrical signal output by the filtering circuit; the A/D (Analog/Digital) converter is connected to the amplifying circuit for the amplified The electrical signal is converted from an analog signal to a digital signal; the CPU is connected to the A/D converter, It is used for processing a digital signal, and is used for receiving various operation button signal commands issued by the operation unit, and correspondingly processing according to the received various operation button signal commands, and also for writing information to the memory. And a memory; connected to the CPU, which may be ROM (Read Only Memory) or RAM (Random Access Memory), which is used to store information such as an algorithm program and database data to be written and read by the CPU; In the CPU, it is used for automatic timing and the timing data is transmitted to the CPU in real time; the communication circuit is connected to the CPU, and is used for uploading the measured ECG waveform to the host computer according to the relevant instruction.

Further, since the external electrode includes a plurality of touch electrodes, the card type electrocardiograph of the present embodiment can have various measurement postures.

FIG. 6a is a front view of a measuring method of the card type electrocardiograph according to the present invention; FIG. 6b is a rear view of a measuring method of the card type electrocardiograph according to the present invention, and is tested according to FIG. 6a and FIG. 6b. Can use the thumb of the left and right hands It is not placed on the front-facing positive touch electrode 106 and the on-face negative touch electrode 107, and the left and right hand index fingers are respectively pressed against the back left feedback touch electrode 104 and the back right feedback touch electrode 105 to complete the measurement of the electrocardiographic waveform.

Secondly, FIG. 7a is a front view of another measurement mode of the card type electrocardiograph according to the present invention, and FIG. 7b is a rear view of another measurement mode of the card type electrocardiograph according to the present invention, which is combined with FIG. 7a and FIG. 7b. Similarly, the subject can be placed on the front-facing positive touch electrode 106 and the on-face negative touch electrode 107 by the left and right hand's thumb, respectively, but in order to more stably hold the card-type electrocardiograph, the left and right middle fingers can be respectively used. The back touch sensor electrode 104 and the back right feedback touch electrode 105 are pressed against the back, and at the same time, the edges of the back positive touch electrode 108 and the back negative touch electrode 109 can be pressed with the index fingers of the left and right hands.

It can be understood that the handheld measurement posture is not limited to the above two methods, if it satisfies the left-hand finger touching the front-facing positive touch electrode 106 or the back positive touch electrode 108, while contacting the back left feedback touch electrode 104 or the back right feedback touch electrode The measurement of the electrocardiographic waveform can be achieved by one of the 105, and the finger of the right hand contacts one of the back negative touch electrode 107 or the back negative touch electrode 109 while contacting the back left feedback touch electrode 104 or the back right feedback touch electrode 105.

Third, as shown in FIG. 8 is a schematic diagram of another measurement method of the card type electrocardiograph according to the present invention. The test subject can measure the electrocardiogram waveform by placing the card type electrocardiograph on the chest. Specifically, The measurement of the electrocardiographic waveform is achieved by simultaneously touching the back positive touch electrode 108 and the back left feedback touch electrode 104 to the left chest, and the back negative touch electrode 109 and the back right feedback touch electrode 105 to the right chest.

Further, since the outer edge and the apex angle of the back touch electrode are set to arc chamfering in the first embodiment, the measurement posture is suitable for the device to grasp the device, so that the user can better grasp the experience. In particular, for the chest measurement mode, when the chest is strong and the bust is full, the outer edge and the top corner of the back touch electrode are designed to be chamfered, which not only makes the subject feel comfortable, Moreover, the contact measurement area is greatly increased compared with the existing related electrocardiograph, which ensures the stability of the ECG waveform measurement.

It should be emphasized here that the card type electrocardiograph of the present embodiment can realize the measurement of the electrocardiographic waveform of the leads of I, II and III through the positive electrode, the negative electrode and the feedback electrode in the electrode circuit, because The test subject is required to contact the positive electrode and the feedback electrode at the same time, and the other hand simultaneously contacts the negative electrode and the feedback electrode, so the intervention of the feedback electrode makes it possible to filter the partial clutter entering the front end of the filter circuit with the positive electrode and the negative electrode. The signal improves the measurement accuracy of the ECG waveform.

Further, the card type electrocardiograph of the embodiment further includes a display portion, an external storage medium, and a power source. The power supply is connected to an electronic component that needs to be powered, and is used to supply power to the card-type electrocardiograph. In addition, the external storage medium is connected to the CPU after inserting a socket for placing the external storage medium, which can be used to temporarily store the measured electrocardiographic waveform. The display unit is connected to the CPU, which is displayed and controlled by the CPU, and is used to display data output by the CPU. In the card type electrocardiograph of the present embodiment, since the external electrode includes a plurality of touch electrodes, a plurality of measurement postures can be realized, so as to facilitate the subject to detect the symptoms of the electrocardiogram when palpitations or shortness of breath occur, according to Freely change the measurement posture in the actual situation.

Embodiment 3

Fig. 5 is a flow chart showing the execution of the program of the card type electrocardiograph of the present invention. As shown in FIG. 4 and FIG. 5, the program execution steps of the card type electrocardiograph of the present invention include:

Step S 1 trigger the power button to start;

Specifically, the test subject holds the card type electrocardiograph, triggers the power button, turns on the computer and the program starts to execute; step S2 displays the measurement guide, and waits for the measurement;

Specifically, the display unit displays the waiting measurement, and displays measurement posture information that can be used by the test subject during the measurement; Step S3 triggers the measurement button;

Specifically, after selecting a suitable measurement posture, the test subject triggers the measurement button, and the measurement starts;

Step S4 measures the electrocardiogram waveform;

Specifically, the display unit displays the measurement of the electrocardiographic waveform in the form of a countdown to remind the subject to maintain the measurement posture at the current stage, and the measurement signal command issued by the measurement button in the operation unit is received by the CPU, and the electrode circuit detection is detected. The electrical signal and the filter circuit filter the electrical signal of the test subject detected by the electrode circuit, the amplification circuit amplifies the electrical signal output by the filter circuit, and the A/D converter amplifies the amplified electrical signal from the analog signal. The series of actions of converting into a digital signal, processing the digital signal by the CPU, and writing and reading information to the memory, finally completing the measurement of the electrocardiographic waveform of the test subject; the measured electrocardiographic waveform can be temporarily stored in the memory Medium

Step S5 The measurement is completed, waiting to be sent;

Specifically, after the reading of the second is completed, the display unit displays an indication that the measurement of the electrocardiographic waveform is completed, and prompts the subject to relax, thereby releasing the measurement posture, and waits for the reading instruction of the upper computer to send the electrocardiographic waveform to the upper computer; Step S6 is sent;

Specifically, receiving a read command of the upper computer, establishing a channel with the upper computer, reading the temporarily stored ECG waveform from the memory, and then completing the sending to the upper computer;

Step S7 Waiting for timeout;

Specifically, in the process of displaying the measurement guidance and waiting for the measurement in step S2, in order to save the power of the power supply, it is determined whether the time waiting for the measurement is timed out. If the timeout is exceeded, step S8 is performed, otherwise step S2 is continued to wait for step S8 to be turned off;

Step S9 triggering the power button for a predetermined time to clear the current measurement data;

Specifically, in step S5, after the measurement of the current electrocardiogram is completed, in the process of waiting for transmission, if the measured person feels If the measurement posture adopted by this measurement is incorrect, or if you feel that the measurement process is disturbed by the surrounding environment, or you feel that you are not measuring in a relatively calm state, you can press the power button to make a reservation. Time, the appointment time can be set to 3 seconds, to clear the current measurement data, and then jump to step S2;

Step S 10 Press and hold the power button to turn it off.

Specifically, in the process of displaying the measurement guidance and waiting for the measurement in step S2, the process of measuring the electrocardiogram waveform in step S4, the measurement being completed in step S5 and waiting for transmission, if the power button is long pressed, the long press time can be set to 5 In seconds, it will shut down directly.

This embodiment describes in detail the program execution flow of the card-type ECG measuring instrument. After the measurement of the ECG waveform is completed, in the process of waiting to send the ECG waveform, the subject can choose to clear the current measurement data according to the actual situation. The related technical solution increases the processing authority of the subject to measure the completed ECG waveform in time, so that the subject can quickly and autonomously screen more effective ECG waveforms for storage, which provides reliable for subsequent effective ECG analysis. Measurement data.

In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples", etc. Particular features, structures, materials or features described in the examples or examples are included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

While the embodiments of the present invention have been shown and described, the embodiments of the invention may The scope of the invention is defined by the claims and their equivalents.

Claims

claims

1. An electrocardiogram measuring instrument, characterized in that it includes a circuit board, a main body bracket and a back package; the circuit board is fixed on the main body bracket through the back package;

The circuit board includes external electrodes and a processing circuit; wherein the processing circuit includes:

The electrode circuit is connected to the external electrode, and the external electrode includes a positive touch electrode, a back feedback touch electrode and a negative touch electrode; the positive touch electrode is connected to the positive electrode of the electrode circuit, and the negative touch electrode is connected to The negative electrode of the electrode circuit, the back feedback touch electrode is connected to the feedback electrode of the electrode circuit; and the electrode circuit is used to detect the electrical signal of the subject;

A filter circuit, connected to the electrode circuit, is used to filter out noise from the electrical signal of the subject detected by the electrode circuit; the feedback electrode is used to cooperate with the positive electrode and negative electrode to filter out the incoming Clutter signal at the front end of the filter circuit;

An amplifier circuit, connected to the filter circuit, used to amplify the electrical signal output by the filter circuit;

An A/D converter, connected to the amplifier circuit, is used to convert the electrical signal amplified by the amplifier circuit from an analog signal into a digital signal;

The CPU is connected to the A/D converter and is used to process the digital signal to measure the electrocardiogram waveform of the subject.

2. The electrocardiograph according to claim 1, wherein the circuit board further includes a timer, connected to the CPU, for automatically timing and transmitting timing data to the CPU in real time.

3. The ECG measuring instrument according to claim 1, characterized in that the circuit board further includes a communication circuit connected to the CPU for uploading the measured ECG waveform to the host computer according to relevant instructions. .

4. The ECG meter according to claim 1, characterized in that, the ECG meter further includes an operating part, connected to the CPU, and the operating part is used to send various operation buttons to the CPU. signal instructions, and the CPU is also configured to receive various operation button signal instructions issued by the operation part, and perform corresponding processing according to the received various operation button signal instructions.

5. The electrocardiogram measuring instrument according to claim 1, characterized in that, the electrocardiographic measuring instrument further includes an external storage medium, and the external storage medium is connected to the CPU after being inserted into a socket for placing the external storage medium. connected, and the external storage medium is used to temporarily store the measured ECG waveform.

6. The electrocardiogram meter according to claim 1, characterized in that, the electrocardiogram meter further includes a display unit connected to the CPU, and the CPU performs display control on it, and the display unit Used to display the data output by the CPU to it.

7. The electrocardiogram measuring instrument according to claim 1, characterized in that, through the front touch electrode, the back Feedback touch electrodes and negative touch electrodes are used to measure the ECG waveform of leads I, II, and III of the subject.

8. The electrocardiogram measuring instrument according to claim 1, characterized in that the circuit board is fixed on the main body bracket through the back package and includes:

The circuit board is arranged on the front side of the main body bracket; the back package is arranged on the back side of the main body bracket;

The main body bracket is hollow-shaped, and through the hollow part of the main body bracket, the electronic components on the circuit board are respectively fit and accommodated between the back side of the circuit board and the back package.

9. The electrocardiogram measuring instrument according to claim 8, characterized in that the electronic components are arranged on the back side of the circuit board.

10. The electrocardiogram measuring instrument according to claim 8 or 9, characterized in that,

The back feedback touch electrode includes a back left touch feedback electrode and a back right touch feedback electrode, and the back left touch feedback electrode and the back right touch feedback electrode are respectively connected to the feedback electrodes of the electrode circuit;

The positive touch electrode includes a front-facing positive touch electrode and a back-facing positive touch electrode, which are respectively connected to the positive electrode of the electrode circuit;

The negative touch electrode includes a front negative touch electrode and a back negative touch electrode, and the front negative touch electrode and the back negative touch electrode are respectively connected to the negative electrode of the electrode circuit;

And the back left feedback touch electrode and the back right feedback touch electrode are respectively arranged on the left and right lower corners of the back of the main body bracket;

The back positive touch electrode and the back negative touch electrode are respectively provided at the upper left and right corners of the back of the main body bracket.

11. The ECG meter according to claim 10, wherein the back package includes a back bracket and four back touch electrodes, and the four back touch electrodes include the back left touch feedback electrode and the back right touch electrode. Feedback electrodes, back positive touch electrodes and back negative touch electrodes; and the back left touch feedback electrode, back right touch feedback electrode, back positive touch electrodes and back negative touch electrodes are arranged around the back bracket.

12. The electrocardiogram measuring instrument according to claim 11, characterized in that the outer edge and top corner of the back touch electrode are arc chamfered.

13. The electrocardiogram measuring instrument according to claim 11, characterized in that,

The back bracket includes a sheet-like body and a plurality of protrusions, and the plurality of protrusions are respectively perpendicular to the sheet-like body; the main body bracket is correspondingly provided with blind holes for engaging the plurality of protrusions;

The back bracket is buckled on the back of the main body bracket, and the back bracket and the main body bracket are fixedly connected by a plurality of the protrusions respectively embedded in the blind holes.

14. The electrocardiogram measuring instrument according to claim 13, characterized in that, the back bracket is made of metal material, And the back bracket and the main body bracket are integrally injection molded.

15. The electrocardiogram measuring instrument according to claim 11, characterized in that,

The back touch electrode includes a horizontal engaging portion and a vertical welding portion, and the main body bracket is provided with a corresponding through hole for engaging the vertical welding portion;

The horizontal engaging portion is embedded in both sides of the outer corner of the back bracket, and the vertical welding portion passes through the through hole and is welded to the circuit board.