A dynamic electrocardiogram monitor and an electrocardiogram acquisition method

Abstract

The present invention relates to a dynamic electrocardiogram monitor and an electrocardiogram measurement method. The dynamic electrocardiogram monitor includes an electrocardiogram main unit, a lead wire, a first connection point and a second connection point; the electrocardiogram main unit is provided with an electrocardiogram measurement module and a switching switch module; the electrocardiogram measurement module includes a first measurement circuit; the first connection point is connected to a first input end of the first measurement circuit; the lead wire includes a third connection point; when the lead piece is connected to the electrocardiogram main unit, the third connection point is connected to a second input end of the first measurement circuit, and the second connection point is connected to a signal output end of the electrocardiogram measurement module through a first switch; when the lead piece is not connected to the electrocardiogram main unit, the second connection point is connected to the second input end of the first measurement circuit through the first switch. The number of lead wires is reduced, reducing the discomfort of the user, and at the same time realizing the switching between single-lead and multi-lead.

Description

Technical Field

[0001] The present application relates to the technical field of electrocardiogram detection, and particularly relates to a dynamic electrocardiogram monitor and an electrocardiogram acquisition method. Background Art

[0002] Electrocardiogram monitoring is one of the commonly used monitoring methods for critically ill patients, and an electrocardiogram monitor is used to display the electrocardiogram activity - an analog electrocardiogram. With the improvement of people's living standards and the acceleration of the pace of life, the incidence of cardiovascular diseases has risen rapidly and has become one of the main factors threatening human health. The electrocardiogram is the main basis for treating such diseases and has the advantages of reliable diagnosis, simple method, and no harm to patients, and has become increasingly important in modern medicine. The conventional electrocardiogram is the electrocardiogram activity recorded by an electrocardiograph when the patient is lying still, lasting only a few seconds to 1 minute, and only a small amount of information about the heart state can be obtained. Therefore, even if arrhythmia occurs within a limited time, the probability of detection is very low. Therefore, it is necessary to monitor the patient for a long time in real time through a corresponding monitoring device and record the electrocardiogram data of the patient. Also, due to the sudden occurrence of heart diseases, patients cannot lie still in the hospital for a long time but need to be monitored by medical staff in real time. Therefore, it is more important to develop a corresponding portable electrocardiogram monitoring product. Summary of the Invention

[0003] In view of the above problems, the present application provides a dynamic electrocardiogram monitor to solve the problems of inconvenience to the wearer and poor wearing comfort caused by existing electrocardiogram monitoring devices.

[0004] To achieve the above object, the inventor provides a dynamic electrocardiogram monitor, including an electrocardiogram main unit and a lead component;

[0005] The electrocardiogram main unit is provided with an electrocardiogram measurement module, a switching switch module, a first connection point, and a second connection point;

[0006] The electrocardiogram measurement module includes at least one measurement circuit: a first measurement circuit;

[0007] The switching switch module includes a first switching switch;

[0008] The first connection point is connected to the first input end of the first measurement circuit;

[0009] The lead component includes at least one connection point: a third connection point;

[0010] When the lead component is connected to the electrocardiogram main unit, the third connection point is connected to the second input end of the first measurement circuit, and the second connection point is connected to the signal output end of the electrocardiogram measurement module through the first switching switch;

[0011] When the lead is not connected to the electrocardiogram (ECG) host, the second connection is connected to the second input terminal of the first measurement circuit through the first switch.

[0012] Further optimization: The lead further includes a fourth connection point, and the electrocardiogram measurement module further includes a second measurement circuit;

[0013] The first input terminal of the second measurement circuit is connected to the first connection point;

[0014] When the lead is connected to the ECG host, the fourth connection point is connected to the second input terminal of the second measurement circuit.

[0015] Further optimization: The switch module further includes a second switch;

[0016] The signal output terminal of the electrocardiogram measurement module is disconnected or connected to the first input terminal and the second input terminal of the first measurement circuit through the second switch.

[0017] Further optimization: The first connection point and the second connection point are detachably mounted on the ECG host through electrode patches.

[0018] Further optimization: The electrode patch is provided with an RFID chip;

[0019] The ECG host is provided with an NFC antenna for reading the RFID chip;

[0020] The ECG host is configured to read the characteristic value of the electrode patch through the NFC antenna, determine whether the characteristic value meets the preset value. If it meets, the electrocardiogram data is collected through the electrode patch. If it does not meet, the electrode patch is prohibited from collecting electrocardiogram data.

[0021] Further optimization: The ECG host is further configured to write the usage duration of the electrode patch into the RFID chip of the electrode patch through the NFC antenna at preset intervals. When the usage duration of the electrode patch reaches the preset usage time, the electrode patch is prohibited from collecting electrocardiogram data.

[0022] Further optimization: The ECG host is provided with a first metal female buckle and a second metal female buckle. The first metal female buckle is connected to the first input terminal of the first measurement circuit and the first input terminal of the second measurement circuit;

[0023] The second metal female buckle is connected to the signal output terminal of the electrocardiogram measurement module or the second input terminal of the first measurement circuit through the first switch;

[0024] The electrode patch is provided with a first metal male buckle and a second metal male buckle. The first connection point is connected to the first metal male buckle, and the second connection point is connected to the second metal male buckle;

[0025] The first metal sub - buckle is detachably electrically connected to the first metal mother - buckle;

[0026] The second metal sub - buckle is detachably electrically connected to the second metal mother - buckle.

[0027] Further optimized, it further includes a connection detection unit. The connection detection unit is connected to the control end of the switching switch module, and the connection detection unit is used to detect whether the lead piece is connected to the electrocardiogram host.

[0028] Further optimized, the measurement circuit of the electrocardiogram measurement module further includes a third measurement circuit;

[0029] The lead piece is further provided with a fifth connection point. When the lead piece is connected to the electrocardiogram host, the fifth connection point is connected to the second input end of the third measurement circuit;

[0030] The second connection point is connected to the first input end of the third measurement circuit.

[0031] Further optimized, the measurement circuit includes a first operational amplifier, a second operational amplifier and a third operational amplifier;

[0032] The non - inverting input end of the first operational amplifier is the first input end of the measurement circuit. The inverting input end of the first operational amplifier is connected to the output end of the first operational amplifier through a first resistor, and the output end of the first operational amplifier is connected to the inverting input end of the third operational amplifier through a second resistor;

[0033] The non - inverting input end of the second operational amplifier is the second input end of the measurement circuit. The inverting input end of the second operational amplifier is connected to the output end of the second operational amplifier through a third resistor, and the output end of the second operational amplifier is connected to the non - inverting input end of the third operational amplifier through a fourth resistor.

[0034] Further optimized, when the lead piece is not connected to the electrocardiogram host, the first connection point serves as the connection point for collecting the electrocardiogram signal of the first position point of the human body, and the second connection point serves as the connection point for collecting the electrocardiogram signal of the second position point of the human body;

[0035] When the lead piece is connected to the electrocardiogram host, the first connection point serves as the connection point for collecting the electrocardiogram signal of the first position point of the human body, the second connection point serves as the connection point for collecting the electrocardiogram signal of the third position point of the human body, and the third connection point serves as the connection point for collecting the electrocardiogram signal of the fourth position point of the human body.

[0036] Another technical solution is also provided: an electrocardiogram acquisition method for a dynamic electrocardiogram monitor. The dynamic electrocardiogram monitor is the above - mentioned dynamic electrocardiogram monitor. The electrocardiogram acquisition method specifically includes the following steps:

[0037] When no lead piece is detected to be connected, the electrocardiogram (ECG) main unit switches to the single-lead measurement mode. The ECG main unit uses the first connection point as the connection point for collecting the ECG signal of the first position point on the human body and the second connection point as the connection point for collecting the ECG signal of the second position point on the human body to collect the ECG signal.

[0038] When a lead piece is detected to be connected, the ECG main unit switches to the multi-lead measurement mode. The ECG main unit uses the first connection point as the connection point for collecting the ECG signal of the first position point on the human body, the second connection point as the connection point for collecting the ECG signal of the third position point on the human body, and the third connection point as the connection point for collecting the ECG signal of the fourth position point on the human body to collect the ECG signal.

[0039] Different from the prior art, in the above technical solution, the ECG main unit is attached to the user's body to collect the user's ECG signal. Among them, the ECG main unit includes a single-lead measurement mode and a multi-lead measurement mode. When the single-lead measurement mode is adopted, there is no need to connect the lead piece to the ECG main unit. The ECG main unit can collect the ECG signals at two positions on the user's body through the first connection point and the second connection point. The first switching switch in the switching switch module connects the second connection point to the second input terminal in the first measurement circuit. The first input terminal of the first measurement circuit is connected to the first connection point. Then, the first measurement circuit can output the ECG data according to the potential difference between the ECG signals collected at the first connection point and the second connection point, that is, the ECG data in the single-lead measurement mode. When the multi-lead measurement mode is adopted, the lead piece is connected into the ECG main unit, and at the same time, the third connection point on the lead piece is placed on the corresponding position on the user's body to collect the ECG signal at the corresponding position on the user's body. At this time, the first switching switch connects the second connection point to the signal output terminal of the electrocardiogram measurement module to realize the common ground of the ECG measurement circuit and the user's body. The third connection point is connected to the second input terminal of the first measurement circuit. Then, the first measurement circuit collects the potential difference between the first connection point and the third connection point and generates the corresponding ECG data. Since the ECG main unit is attached to the user's body and collects the user's ECG signal through two connection points, in the same situation, the number of connection lines becomes smaller, reducing the discomfort caused by the user's wearing and improving the user's wearing comfort. At the same time, it can realize the switching between single-lead and multi-lead, which is convenient for the user to use.

[0040] The above description of the invention content is only an overview of the technical solution of this application. In order to enable those of ordinary skill in the art to more clearly understand the technical solution of this application, and then can be implemented according to the content recorded in the description and the drawings, and in order to make the above objects, other objects, features and advantages of this application more easily understood, the following is described in conjunction with the specific implementation manners and drawings of this application. Brief Description of the Drawings

[0041] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, effects, etc. of the specific embodiments of the present application and other related contents, and should not be considered as a limitation to the present application.

[0042] In the accompanying drawings of the specification:

[0043] Figure 1 It is a schematic structural diagram of a lead system standard described in the specific embodiment;

[0044] Figure 2 It is a schematic structural diagram of a dynamic electrocardiogram monitor described in the specific embodiment;

[0045] Figure 3 It is a schematic structural diagram of an electrocardiogram main unit and a lead component described in the specific embodiment;

[0046] Figure 4 It is a schematic structural diagram of an electrocardiogram main unit and an electrode patch described in the specific embodiment;

[0047] Figure 5 It is a schematic structural diagram of a single-lead measurement mode described in the specific embodiment;

[0048] Figure 6 It is a schematic structural diagram of a multi-lead measurement mode described in the specific embodiment;

[0049] Figure 7 It is a schematic circuit principle diagram of a first switching switch described in the specific embodiment;

[0050] Figure 8 It is another schematic structural diagram of a dynamic electrocardiogram monitor described in the specific embodiment;

[0051] Figure 9 It is a schematic circuit principle diagram of a second switching switch described in the specific embodiment;

[0052] Figure 10 It is a schematic circuit principle diagram of a measurement circuit described in the specific embodiment.

[0053] The descriptions of the reference numerals involved in the above-mentioned accompanying drawings are as follows:

[0054] 110, electrocardiogram main unit;

[0055] 111, electrocardiogram measurement module, 1111, first measurement circuit, 1112, second measurement circuit;

[0056] 112, switching switch module, 1121, first switching switch, 1122, second switching switch;

[0057] 120, electrode patch, 121, first connection point, 122, second connection point;

[0058] 130. Lead piece, 131. Third connection point, 132. Fourth connection point, 133. Fifth connection point, 134. Connection line, 135. Connection interface. Detailed implementation manners

[0059] To illustrate in detail the possible application scenarios, technical principles, specific implementable solutions, achievable purposes and effects of this application, etc., the following will be described in detail with reference to the specific examples listed and in conjunction with the accompanying drawings. The examples described in this article are only used to more clearly illustrate the technical solutions of this application, so they are only examples and cannot be used to limit the protection scope of this application.

[0060] Referring to "embodiment" in this article means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of this application. The term "embodiment" appearing in various positions in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0061] Unless otherwise defined, the meanings of the technical terms used in this article are the same as those generally understood by those skilled in the technical field to which this application belongs; the use of relevant terms in this article is only to describe specific embodiments and is not intended to limit this application.

[0062] In the description of this application, the phrase "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: there is A, there is B, and there is both A and B at the same time. In addition, the character " / " in this article generally represents an "or" logical relationship between the associated objects before and after.

[0063] In this application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, primary or secondary, or order relationship between these entities or operations.

[0064] Without more limitations, in this application, the expressions such as "including", "comprising", "having" or other similar expressions used in the statement are intended to cover non-exclusive inclusion. These expressions do not exclude that there may be other elements in the process, method or product including the said elements, so that the process, method or product including a series of elements may not only include those defined elements, but also include other elements not explicitly listed, or also include elements inherent to this process, method or product.

[0065] Similar to the understanding in the "Examination Guidelines", in this application, expressions such as "greater than", "less than", "exceeding", etc. are understood not to include the recited number; expressions such as "above", "below", "within", etc. are understood to include the recited number. In addition, in the description of the embodiments of this application, the meaning of "a plurality of" is two or more (including two). Similar expressions related to "many", such as "multiple groups", "multiple times", etc., are understood in the same way, unless otherwise specifically defined.

[0066] In the description of the embodiments of this application, the spatially related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the specific embodiment or the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the specific embodiments of this application or for the reader to understand, rather than indicating or implying that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of this application.

[0067] Unless otherwise clearly specified or limited, in the description of the embodiments of this application, the terms "installed", "connected", "joined", "fixed", "set", etc. should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two components or the interaction relationship between two components. For those skilled in the art to which this application pertains, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

[0068] In the process of diagnosing heart diseases, with the development of current portable electrocardiogram (ECG) monitoring technology, it is mainly divided into multi-lead portable ECG monitoring and single-lead ECG monitoring products. Multi-lead ECG monitoring products can simultaneously monitor the data of multiple ECG leads of patients. In this way, when a certain lead of a patient is interfered, other leads can be selected as the basis for diagnosis, thereby improving anti-interference ability. At the same time, because there are multiple leads, it can better diagnose the disease information of patients. For example, the judgment of myocardial ischemia must be determined by multiple leads simultaneously to determine whether the characteristics of the disease are present. However, the disadvantage is that there are many connecting wires. For example, a five-lead monitoring has five lead wires, and a 12-lead monitoring has 10 connecting wires. Too many connecting wires will bring a lot of inconvenience to the wearer. The most typical one is poor wearing comfort, and it will also affect the life of the wearer. Generally, it is impossible to wear it for more than 24 hours.

[0069] Such as Figure 1 The standard lead system shown, as well as the paste points at the corresponding click positions. For limb leads, the ECG measurement is actually the potential difference between two connection points. For example, Lead I measures the potential difference between the LA point and the RA point, Lead II measures the potential difference between the RA point and the LL point, and similarly, Lead III measures the potential difference between the LA point and the LL point.

[0070] Please refer to Figures 2 - 5 , this embodiment provides a dynamic electrocardiogram monitor, including an electrocardiogram host 110 and a lead component 130;

[0071] The electrocardiogram host 110 is provided with an electrocardiogram measurement module 111, a switching switch module 112, a first connection point 121 and a second connection point 122;

[0072] The electrocardiogram measurement module 111 includes at least one measurement circuit: a first measurement circuit 1111;

[0073] The switching switch module 112 includes a first switching switch 1121;

[0074] The first connection point 121 is connected to the first input end of the first measurement circuit 1111;

[0075] The lead component 130 includes at least one connection point: a third connection point 131;

[0076] When the lead component 130 is connected to the electrocardiogram host 110, the third connection point 131 is connected to the second input end of the first measurement circuit 1111, and the second connection point 122 is connected to the signal output end of the electrocardiogram measurement module 111 through the first switching switch 1121;

[0077] When the lead member 130 is not connected to the electrocardiogram host, the second connection point 122 is connected to the second input end of the first measurement circuit 1111 through the first switch 1121.

[0078] Among them, the lead member 130 is provided with a connection line 134 corresponding to the third connection point 131 and the fourth connection point 132.

[0079] The electrocardiogram host 110 is attached to the user's body to collect the electrocardiogram signals of the user. Among them, the electrocardiogram host 110 includes a single-lead measurement mode and a multi-lead measurement mode. When the single-lead measurement mode is adopted, there is no need to connect the lead member 130 to the electrocardiogram host 110. The electrocardiogram host 110 can collect the electrocardiogram signals at two positions on the user's body through the first connection point 121 and the second connection point 122. The first switch 1121 in the switch module 112 connects the second connection point 122 to the second input end in the first measurement circuit 1111. The first input end of the first measurement circuit 1111 is connected to the first connection point 121. Then, the first measurement circuit 1111 can output the electrocardiogram data according to the potential difference between the electrocardiogram signals collected at the first connection point 121 and the second connection point 122, that is, the electrocardiogram data in the single-lead measurement mode. When the multi-lead measurement mode is adopted, the lead member 130 is connected into the electrocardiogram host 110, and the third connection point 131 on the lead member 130 is placed on the corresponding position on the user's body to collect the electrocardiogram signals at the corresponding position on the user's body. At this time, the first switch 1121 connects the second connection point 122 to the signal output end of the electrocardiogram measurement module 111 to realize the common ground of the electrocardiogram measurement circuit and the user's body. The third connection point 131 is connected to the second input end of the first measurement circuit 1111. Then, the first measurement circuit 1111 collects the potential difference between the first connection point 121 and the third connection point 131 and generates the corresponding electrocardiogram data. Since the electrocardiogram host 110 is attached to the user's body and collects the electrocardiogram signals of the user through two connection points, in the same situation, the number of connection lines 134 becomes smaller, reducing the discomfort caused by the user's wearing and improving the user's wearing comfort. At the same time, the switching between single-lead and multi-lead can be realized, which is convenient for the user to use. Among them, in this embodiment, the signal output end of the electrocardiogram measurement module is the output end of the common-mode signal.

[0080] In some embodiments, the lead member further includes a fourth connection point 132, and the electrocardiogram measurement module 111 further includes a second measurement circuit 1112.

[0081] The first input end of the second measurement circuit 1112 is connected to the first connection point 121.

[0082] When the lead member 130 is connected to the electrocardiogram host, the fourth connection point 132 is connected to the second input end of the second measurement circuit 1112.

[0083] When the lead piece 130 with the fourth connection point 132 is connected to the electrocardiogram host 110, the third connection point 131 and the fourth connection point 132 are respectively pasted onto the corresponding position points of the human body for electrocardiogram signal acquisition. At this time, the first switch 1121 connects the second connection point 122 to the signal output end of the electrocardiogram measurement module 111, realizing the common ground of the electrocardiogram measurement circuit and the user's body. The third connection point 131 is connected to the second input end of the first measurement circuit 1111, so the first measurement circuit 1111 collects the potential difference between the first connection point 121 and the third connection point 131 and generates corresponding electrocardiogram data. The fourth connection point 132 is connected to the second input end of the second measurement circuit 1112, and the first connection point 121 is connected to the second input end of the second measurement circuit 1112, so the second measurement circuit 1112 collects the potential difference between the first connection point 121 and the fourth connection point 132 and generates corresponding electrocardiogram data, realizing three-lead electrocardiogram measurement.

[0084] In some embodiments, when the lead piece is not connected to the electrocardiogram host, the first connection point serves as the connection point for collecting the electrocardiogram signal of the first position point of the human body, and the second connection point serves as the connection point for collecting the electrocardiogram signal of the second position point of the human body;

[0085] When the lead piece is connected to the electrocardiogram host, the first connection point serves as the connection point for collecting the electrocardiogram signal of the first position point of the human body, the second connection point serves as the connection point for collecting the electrocardiogram signal of the third position point of the human body, and the third connection point serves as the connection point for collecting the electrocardiogram signal of the fourth position point of the human body.

[0086] As Figure 5 shown in the single-lead measurement mode, that is, when the lead piece is not connected to the electrocardiogram host, the connection point on the upper side of the electrocardiogram host 110 is point A, and the connection point on the lower side of the electrocardiogram host 110 is point B. Point A corresponds to the first connection point 121, and point B corresponds to the second connection point 122; in the single-lead measurement mode, the first connection point 121 collects the electrocardiogram signal of the first position point on the human body, and the second connection point 122 collects the electrocardiogram signal of the second position point on the human body. The signal output by the first measurement circuit 1111 is the measurement signal in the single-lead measurement mode. Among them, the first position point is the position of point LA, and the second position point is the position of point RA. Since the single-lead measurement is not carried out according to the standard lead system, the actually measured signal has a deviation compared with the signal measured under the standard lead system, but it can still meet the requirements for identifying the heart rhythm of the electrocardiogram. In other embodiments, the first position point and the second position point can be set according to actual needs. For example, the first position point measures the position of point LA of the human body, and the second position point is the position of point RL.

[0087] As Figure 6When in the multi-lead measurement mode as shown, that is, when the lead component is connected to the electrocardiogram host, such as in the three-lead measurement, the lead component accesses the electrocardiogram host 110 through the connection line 134 at the third connection point 131 and the fourth connection point 132, and pastes the third connection point 131 and the fourth connection point 132 to the corresponding positions on the human body respectively; at this time, the electrocardiogram signal at the first position point on the human body collected by the first connection point 121, the electrocardiogram signal at the third position point on the human body collected by the second connection point 122, the electrocardiogram signal at the fourth position point on the human body collected by the third connection point 131, and the electrocardiogram signal at the second position point on the human body collected by the fourth connection point 132. When the lead component enters the multi-lead mode, the point A is connected to the first input terminal Vinm of the first measurement circuit 1111, the second position point is connected to the second input terminal Vinp of the first measurement circuit 1111, at the same time the point A is connected to the first input terminal Vinm of the second measurement circuit 1112, the fourth position point is connected to the second input terminal Vinp of the second measurement circuit 1112, and the point B is connected to the RL point inside the electrocardiogram host 110. That is, in this embodiment, the first connection point 121 collects the electrocardiogram signal at the LA point position on the human body, the second connection point 122 collects the electrocardiogram signal at the RA point position on the human body, the third connection point 131 collects the electrocardiogram signal at the RL point position on the human body, and the fourth connection point 132 collects the electrocardiogram signal at the LL point position on the human body. Then at this time, the first measurement circuit 1111 and the second measurement circuit 1112 respectively measure the signals of lead I and lead III in the standard lead system, that is, measure the accurate electrocardiogram signals in the standard lead system. It should be noted that in the normal standard lead system, RL is the common ground point between the measurement circuit and the human body. In the electrocardiogram measurement circuit, a voltage signal Vrld will be output according to the voltages of RA, LL, and LA, and Vrld is connected to the RL electrode point to realize the common ground between the measurement circuit and the human body; usually, the detection of the RL point position is to stick the electrode on the right leg position of the patient, while in this embodiment, the detection of the RL point position is set near the LA point position, that is, the electrocardiogram collection at the RL point position is performed through the second connection point 122. The common ground point of the RL point position is not affected by the position, and the measurement of the multi-electrode electrocardiogram system is realized. In this embodiment, in the multi-lead mode, the point B is equivalent to the RL electrode point and is connected to Vrld in the electrocardiogram measurement circuit, thus realizing the common ground between the measurement circuit and the human body. In other embodiments, the second connection point can also be set for electrocardiogram collection at other positions on the human body, such as the LL point position, etc.

[0088] That is, in this embodiment, during the process of switching between the single-lead measurement mode and the multi-lead measurement mode, the corresponding positions of the ECG signals collected by the second connection point are different; in the single-lead measurement mode, the second connection point collects the ECG signals at the second position point, while in the multi-lead measurement mode, the second connection point collects the ECG signals at the fourth position point of the human body. For example, in the single-lead measurement mode, the second connection point collects the ECG signals at the RA point position, while in the multi-lead measurement mode, the second connection point collects the ECG signals at the RL point position; or in the single-lead measurement mode, the second connection point collects the ECG signals at the RA point position, while in the multi-lead measurement mode, the second connection point collects the ECG signals at the LL point position. As a preference, in the single-lead measurement mode, the ECG signals at the first position point collected by the first connection point are the ECG signals at the LA point position, and the ECG signals at the second position point collected by the second connection point are the ECG signals at the RA point position. While in the multi-lead measurement mode, the ECG signals at the first position point collected by the first connection point are the ECG signals at the LA point position, the ECG signals at the third position point collected by the second connection point are the ECG signals at the RL point position, the ECG signals at the fourth position point collected by the third connection point are the ECG signals at the LL point position, and the ECG signals at the second position point collected by the fourth connection point are the ECG signals at the RA point position.

[0089] As Figure 7 shown in the circuit schematic diagram of the first switching switch 1121, the LEAD_IN of the first switching switch 1121 is connected to point B of the ECG host 110, the RA of the first switching switch 1121 refers to the second input terminal vinp of the first measurement circuit 1111, the RL of the first switching switch 1121 is connected to the signal output terminal in the electrocardiogram measurement module 111. In the multi-lead measurement mode, the COM terminal of the first switching switch 1121 is connected to the NC terminal. At this time, point B of the ECG host 110 is connected to the RL of the first switching switch 1121, that is, the second connection point 122 is connected to the signal output terminal in the electrocardiogram measurement module 111; and point A is connected to the first input terminal Vinn of the first measurement circuit 1111, that is, the first connection point 121 is connected to the first input terminal Vinn of the first measurement circuit 1111; the third connection point 131 is connected to the second input terminal Vinp of the first measurement circuit 1111. At this time, the electrocardiogram measurement module 111 measures the electrocardiogram under the standard system. When switching to the single-lead measurement mode, all of the first switching switch 1121 is at the NO terminal, then point B is connected to the RA circuit of the first switching switch 1121. In fact, the second connection point 122 is connected to the second input terminal Vinp of the first measurement circuit 1111, realizing the acquisition of the electrocardiogram signal in the single-lead measurement mode.

[0090] As Figures 8 - 9As shown, in some embodiments, the switching switch module 112 further includes a second switching switch 1122;

[0091] The signal output terminal of the electrocardiogram measurement module 111 is disconnected or connected to the first input terminal and the second input terminal of the first measurement circuit 1111 through the second switching switch 1122.

[0092] RL of the second switching switch 1122 indicates that the NO terminal of the second switching switch 1122 is connected to the signal output terminal in the electrocardiogram measurement module 111. The COM terminal of the second switching switch 1122 is connected to the first input terminal Vinn of the first measurement circuit 1111 through the resistor R1 and to the second input terminal Vinp of the first measurement circuit 1111 through the resistor R2. When in the multi-lead measurement mode, the COM terminal of the second switching switch 1122 is connected to the NC terminal; while when in the single-lead measurement mode, the COM terminal of the second switching switch 1122 is connected to the NO terminal. At this time, the signal output terminal in the electrocardiogram measurement module 111 is connected to the first input terminal and the second input terminal of the first measurement circuit 1111.

[0093] In the normal standard lead system, the RL electrode point is the common ground point of the measurement circuit and the human body. The electrocardiogram measurement module 111 will output a common-mode signal Vrld according to the voltages of RA, LL, and LA, and connect Vrld to the RL electrode point to achieve the common ground of the measurement circuit and the human body. In this embodiment, when in the multi-lead measurement mode, the second connection point 122 is equivalent to the RL electrode point. The second connection point 122 is connected to the signal output terminal in the electrocardiogram measurement module 111 through the first switching switch 1121, that is, the second connection point 122 is connected to the common-mode signal Vrld output by the electrocardiogram measurement module 111 through the first switching switch 1121; at this time, the second switching switch 1122 disconnects the signal output terminal of the electrocardiogram measurement module 111 from the first input terminal and the second input terminal of the first measurement circuit 1111; while in the single-lead measurement mode, the first connection point 121 is connected to the first input terminal of the first measurement circuit 1111, and the second connection point 122 is connected to the second input terminal of the first measurement circuit 1111. At this time, the common-mode signal Vrld output by the electrocardiogram measurement module 111 is not electrically connected to the human body, so the electrocardiogram signal cannot be measured. Therefore, when switching to the single-lead measurement mode, the signal output terminal of the electrocardiogram measurement module 111 is simultaneously connected to the first input terminal and the second input terminal of the first measurement circuit 1111 through the second switching switch 1122, so that the common-mode signal Vrld output by the electrocardiogram measurement module 111 is electrically connected to the human body; while when in the multi-lead measurement mode, the signal output terminal of the electrocardiogram measurement module 111 is connected to the second connection point 122, and the connection between the signal output terminal of the electrocardiogram measurement module 111 and the first input terminal and the second input terminal of the first measurement circuit 1111 needs to be disconnected through the second switching switch 1122.

[0094] In some embodiments, the first connection point and the second connection point are detachably mounted on the electrocardiogram host through the electrode patch 120; wherein, the electrode patch 120 is detachably connected to the housing of the electrocardiogram host 110 through a metal buckle. To facilitate the replacement of the electrode patch 120, the electrode patch 120 is detachably connected to the housing of the electrocardiogram host 110 through a metal buckle. When the electrode patch 120 needs to be replaced, only the old electrode patch 120 needs to be detached from the electrocardiogram host 110 and a new electrode patch 120 is replaced. Among them, the electrocardiogram host 110 is provided with a first female metal buckle and a second female metal buckle. The first female metal buckle is connected to the first input end of the first measurement circuit 1111 and the first input end of the second measurement circuit 1112; the second female metal buckle is connected to the signal output end of the electrocardiogram measurement module 111 or the second input end of the first measurement circuit 1111 through a first switching switch 1121; the electrode patch 120 is provided with a first male metal buckle and a second male metal buckle. The first connection point 121 is connected to the first male metal buckle, and the second connection point 122 is connected to the second male metal buckle; the first male metal buckle is detachably electrically connected to the first female metal buckle; the second male metal buckle is detachably electrically connected to the second female metal buckle. In other embodiments, a first male metal buckle and a first female metal buckle can also be provided on the electrocardiogram host 110, and a first female metal buckle and a second female metal buckle are correspondingly provided on the electrode patch 120.

[0095] In some embodiments, the electrode patch 120 is provided with an RFID chip;

[0096] The electrocardiogram host 110 is provided with an NFC antenna for reading the RFID chip;

[0097] The electrocardiogram host 110 is configured to read the characteristic value of the electrode patch 120 through the NFC antenna, determine whether the characteristic value conforms to a preset value. If it conforms, electrocardiogram data is collected through the electrode patch 120. If it does not conform, the electrode patch 120 is prohibited from collecting electrocardiogram data. By providing an RFID chip on the electrode patch 120 and an NFC antenna at the corresponding position of the electrocardiogram host 110, the electrocardiogram host 110 reads the characteristic value in the RFID of the electrode patch 120 through the NFC antenna, and determines whether the characteristic value of the electrode patch 120 meets the requirements, that is, whether it conforms to the preset value. When it meets the requirements, electrocardiogram data is collected through the electrode patch 120. If it does not conform, the electrode patch 120 is prohibited from collecting data. Different electrode patches 120 have their corresponding characteristic values, and only the electrode patches 120 that meet the requirements can collect data, which further enhances the cooperation between the electrocardiogram host 110 and the electrocardiogram electrodes of the electrode patch 120, and at the same time strengthens the management of the electrocardiogram electrodes.

[0098] In some embodiments, the electrocardiogram host 110 is further configured to write the usage duration of the electrode patch 120 into the RFID chip of the electrode patch 120 via the NFC antenna at preset intervals. When the usage duration of the electrode patch 120 reaches the preset usage time, the electrode patch 120 is prohibited from collecting electrocardiogram data. During the use of the electrode patch 120, the electrocardiogram host 110 will write a value representing the usage duration of the electrode patch 120 into the RFID chip of the electrode patch 120. As the usage duration of the electrocardiogram host 110 is updated, the value representing the usage duration of the electrode patch 120 is also updated. When the electrocardiogram host 110 reads that the data exceeds the value of the usage duration, the electrode patch 120 is prohibited from being used. This strengthens the management of the usage duration of the electrode patch 120.

[0099] In some embodiments, a connection detection unit is further included. The connection detection unit is connected to the control end of the switching switch module. The connection detection unit is used to detect whether the lead piece is connected to the electrocardiogram host. Among them, the pin of the connection interface 135 of the electrocardiogram host 110 is connected to the connection detection unit through a pull-down resistor, and the pin of the connection interface 135 of the lead piece corresponding to the pull-down resistor is connected to a power signal; the connection detection unit is connected to the control end of the switching switch module 112. The pin of the connection interface 135 of the electrocardiogram host 110 is connected to the connection detection unit through a pull-down resistor, and the pin of the connection interface 135 of the lead piece corresponding to the pull-down resistor is connected to a power signal. When the lead piece is connected to the electrocardiogram host 110, the power signal on the lead piece will pull the pin on the connection interface 135 of the electrocardiogram host 110 to a high level through the pull-down resistor. Thus, when the connection detection unit collects a high level, it is determined that a lead piece is connected to the electrocardiogram host 110. When the lead piece is not connected to the electrocardiogram host 110, the connection detection unit detects a low-level signal, and it is determined that no lead piece is connected to the electrocardiogram host 110. Then, the connection detection unit controls the operation of the switching switch module 112 according to the judgment result. In other embodiments, the detection of whether the lead piece is connected to the electrocardiogram host can be performed by setting a pull-up resistor, or the operation state of the switching switch module 112 can be controlled manually by the user.

[0100] In some embodiments, the measurement circuit of the electrocardiogram measurement module 111 further includes a third measurement circuit;

[0101] The lead piece is further provided with a fifth connection point 133. When the lead piece is connected to the electrocardiogram host 110, the fifth connection point 133 is connected to the second input end of the third measurement circuit;

[0102] The second connection point 122 is connected to the first input end of the third measurement circuit.

[0103] When more electrocardiogram signals need to be detected, a fifth connection point 133 is led out on the lead component, and the electrocardiogram signal at the V position point of the human body can be detected to realize the measurement of the chest V lead. Specifically, when the lead component with the fifth connection point 133 is connected to the electrocardiogram host 110, the fifth connection point 133 is connected to the first input end of the third measurement circuit, and the second connection point 122 is connected to the second input end of the third measurement circuit, and the measurement of the chest V lead is realized through the third measurement circuit.

[0104] Please refer to Figure 10 , in some embodiments, the measurement circuit includes a first operational amplifier OA1, a second operational amplifier OA2, and a third operational amplifier OA3;

[0105] The non-inverting input terminal Vinm of the first operational amplifier OA1 is the first input end of the measurement circuit. The inverting input terminal of the first operational amplifier is connected to the output terminal of the first operational amplifier through a first resistor, and the output terminal of the first operational amplifier is connected to the inverting input terminal of the third operational amplifier through a second resistor;

[0106] The non-inverting input terminal Vinp of the second operational amplifier is the second input end of the measurement circuit. The inverting input terminal of the second operational amplifier is connected to the output terminal of the second operational amplifier through a third resistor, and the output terminal of the second operational amplifier is connected to the non-inverting input terminal of the third operational amplifier through a fourth resistor.

[0107] The measurement circuit is respectively composed of a first operational amplifier OA1, a second operational amplifier OA2, a third operational amplifier OA3 and multiple resistors. Vinp and Vinm are respectively the input terminals of the electrocardiogram signal. The first operational amplifier OA1 and the second operational amplifier OA2 are used to increase the input impedance of the electrocardiogram signal. The two nodes of V1 and V2 are the differential signals of 3 times Vinp and Vinm. The subsequent resistor Ri, resistor Rf and the third operational amplifier OA3 form a differential amplification circuit to convert the differential signal into a single-ended signal output. The final output signal can be expressed as: VPACEOUT = 3 * (Rf / Ri) * (Vinp - Vinm).

[0108] The electrocardiogram (ECG) main unit 110 is provided with an insertion recognition function for the ECG lead component. When the ECG main unit 110 recognizes the insertion of the ECG lead component, it will automatically work according to the above-mentioned mode. If the ECG main unit 110 fails to recognize the insertion of the ECG lead component, there is a changeover switch inside the ECG main unit 110, which automatically connects RL and the lead component connected to RA. Then the ECG main unit 110 can measure the ECG potential difference between the two electrodes, thereby realizing the acquisition of single-lead electrocardiogram, and thus realizing the switching between single-lead and multi-lead. Similarly, in other embodiments of the present invention, the connection between the internal RL circuit and the RL electrode point can also be disconnected, and the RL circuit is output to the RA and LA circuit terminals through two resistors at the same time, and the RA circuit terminal is effectively connected to the RL electrode point through an analog switch, thereby realizing the switching between single-lead and multi-lead. Since the main unit itself has already been provided with two electrodes, the number of connecting wires 134 of the lead component is naturally reduced by two. Taking the 5-lead with 5 wires as an example, it now becomes 3 wires, effectively reducing the connecting wires 134 by 40%. Since the main unit can effectively switch between single-lead and multi-lead, the wearer who needs to wear multi-lead can normally wear the device in most cases. When the body state is evaluated to be good, it is switched to single-lead, so as to better improve the wearing comfort. Since the patient wears a wearable monitoring device, for the patient who needs single-lead, the device can be normally worn. When the patient feels uncomfortable or encounters a relatively complex situation that requires monitoring, the main unit is connected to the lead component, so that the monitoring can be switched from single-lead data to multi-lead data.

[0109] In another embodiment, a method for collecting electrocardiogram of a dynamic electrocardiogram monitor, the dynamic electrocardiogram monitor is the above-mentioned dynamic electrocardiogram monitor, and the method for collecting electrocardiogram specifically includes the following steps:

[0110] When no lead component is detected to be connected, the ECG main unit switches to the single-lead measurement mode, and the ECG main unit uses the first connection point as the connection point for collecting the ECG signal of the first position point of the human body and the second connection point as the connection point for collecting the ECG signal of the second position point of the human body to collect the ECG signal.

[0111] When a lead component is detected to be connected, the ECG main unit switches to the multi-lead measurement mode, and the ECG main unit uses the first connection point as the connection point for collecting the ECG signal of the first position point of the human body, the second connection point as the connection point for collecting the ECG signal of the third position point of the human body, and the third connection point as the connection point for collecting the ECG signal of the fourth position point of the human body to collect the ECG signal.

[0112] The electrocardiogram (ECG) main unit includes a single-lead measurement mode and a multi-lead measurement mode. When the single-lead measurement mode is adopted, there is no need to connect the lead piece to the ECG main unit. The ECG main unit can collect the ECG signals at two positions on the user's body through the first connection point and the second connection point. The first switch in the switching switch module connects the second connection point to the second input terminal in the first measurement circuit. The first input terminal of the first measurement circuit is connected to the first electrode. Then, the first measurement circuit can output the ECG data according to the potential difference between the ECG signals collected at the first connection point and the second connection point, which is the ECG data in the single-lead measurement mode. When the multi-lead measurement mode is adopted, the lead piece is connected to the ECG main unit, and at the same time, the third connection point on the lead piece is placed on the corresponding position on the user's body to collect the ECG signals at the corresponding positions on the user's body respectively. At this time, the first switch connects the second connection point to the signal output terminal of the electrocardiogram measurement module to realize the common ground of the ECG measurement circuit and the user's body. The third connection point is connected to the second input terminal of the first measurement circuit. Then, the first measurement circuit collects the potential difference between the first connection point and the third connection point and generates the corresponding ECG data. When the ECG main unit does not detect the connection of the lead piece, it switches to the single-lead measurement mode, and collects the ECG signal at the first position point on the human body through the first connection point and the ECG signal at the second position point on the human body through the second connection point. When the connection of the lead piece is detected, it switches to the multi-lead measurement mode, and collects the ECG signal at the first position point on the human body through the first connection point, the ECG signal at the third position point on the human body through the second connection point, and the ECG signal at the fourth position point on the human body through the third connection point. When the lead piece has a fourth connection point, after the lead piece is connected to the ECG main unit, the fourth connection point is placed at the corresponding position as the connection point for collecting the ECG signal at the second position point on the human body. The fourth connection point is connected to the second input terminal of the second measurement circuit in the ECG main unit. Among them, the first connection point is connected to the first input terminal of the second measurement circuit. The second measurement circuit collects the potential difference between the first electrode and the fourth connection point and generates the corresponding ECG data. Among them, in this embodiment, the first position point corresponds to the LA point position on the human body, the second position point corresponds to the RA point position on the human body, the third position point corresponds to the RL point position on the human body, and the fourth position point corresponds to the LL point position on the human body. In other embodiments, the positions of the first position point, the second position point, the third position point, and the fourth position point on the human body can be set according to actual requirements. For example, the first position point corresponds to the LA point position, the second position point corresponds to the LL point position, the third position point corresponds to the RL point position, and the fourth position point corresponds to the RA point position. Since the ECG main unit is attached to the user's body through the electrode patch and collects the user's ECG signals through the two electrodes on the electrode patch, in the same situation, the number of connecting wires becomes smaller, reducing the discomfort caused by the user's wearing and improving the user's wearing comfort. At the same time, it can realize the switching between single-lead and multi-lead, which is convenient for the user to use.

[0113] Through the above invention examples, the technical effects of this patent can be clearly seen:

[0114] 1. Improved wearing convenience

[0115] Since two electrodes have already been set on the main body itself, the number of lead wires is naturally reduced by two. Taking the 5-lead 5-wire as an example, it now becomes 3 wires, effectively reducing the connecting wires by 40%.

[0116] 2. Better adaptability to multiple leads

[0117] Since the main body can effectively switch between single-lead and multiple-lead, wearers who need to wear multiple leads can normally wear the device in most cases. When the body state is evaluated to be good, it can be switched to single-lead, thus better improving the wearing comfort

[0118] 3. Better diagnostic performance for single-lead

[0119] As mentioned above, since the patient wears a wearable monitoring device, for patients who need single-lead, they can normally wear the device. When the patient feels uncomfortable or encounters a relatively complex situation that requires monitoring, the main body is connected to the lead wire, so that the monitoring can be switched from single-lead data to multiple-lead data.

[0120] Finally, it should be noted that although the above embodiments have been described in the text and drawings of the specification of this application, the patent protection scope of this application cannot be limited thereby. Any technical solutions obtained by equivalent structure or equivalent process substitution or modification based on the essential concept of this application, using the content recorded in the text and drawings of the specification of this application, and any technical solutions directly or indirectly implementing the above embodiments in other related technical fields are included in the patent protection scope of this application.

Claims

1. A dynamic electrocardiogram monitor, characterized in that, It includes an electrocardiogram main unit and a lead component; The electrocardiogram main unit is provided with an electrocardiogram measurement module, a switching switch module, a first connection point and a second connection point; The electrocardiogram measurement module includes at least one measurement circuit: a first measurement circuit; The switching switch module includes a first switching switch; The first connection point is connected to the first input end of the first measurement circuit; The lead component includes at least one connection point: a third connection point; When the lead component is connected to the electrocardiogram main unit, the third connection point is connected to the second input end of the first measurement circuit, and the second connection point is connected to the signal output end of the electrocardiogram measurement module through the first switching switch; When the lead component is not connected to the electrocardiogram main unit, the second connection point is connected to the second input end of the first measurement circuit through the first switching switch; The lead component further includes a fourth connection point, and the electrocardiogram measurement module further includes a second measurement circuit; The first input end of the second measurement circuit is connected to the first connection point; When the lead component is connected to the electrocardiogram main unit, the fourth connection point is connected to the second input end of the second measurement circuit; The first connection point and the second connection point are detachably mounted on the electrocardiogram main unit through electrode patches.

2. The dynamic electrocardiogram monitor according to claim 1, wherein The switching switch module further includes a second switching switch; The signal output end of the electrocardiogram measurement module is disconnected or connected to the first input end and the second input end of the first measurement circuit through the second switching switch.

3. The dynamic electrocardiogram monitor according to claim 1, characterized in that, The electrode patch is provided with an RFID chip; The electrocardiogram main unit is provided with an NFC antenna for reading the RFID chip; The electrocardiogram main unit is used to read the characteristic value of the electrode patch through the NFC antenna, judge whether the characteristic value conforms to the preset value. If it conforms, electrocardiogram data is collected through the electrode patch. If it does not conform, the electrode patch is prohibited from collecting electrocardiogram data.

4. The dynamic electrocardiogram monitor according to claim 3, characterized in that, The electrocardiogram main unit is further used to write the usage duration of the electrode patch into the RFID chip of the electrode patch through the NFC antenna at preset intervals. When the usage duration of the electrode patch reaches the preset usage time, the electrode patch is prohibited from collecting electrocardiogram data.

5. The dynamic electrocardiogram monitor according to claim 1, wherein It further includes a connection detection unit. The connection detection unit is connected to the control end of the switching switch module, and the connection detection unit is used to detect whether the lead component is connected to the electrocardiogram main unit.

6. The ambulatory electrocardiogram monitor according to claim 1, wherein The measurement circuit of the electrocardiogram measurement module further includes a third measurement circuit; The lead component is further provided with a fifth connection point. When the lead component is connected to the electrocardiogram main unit, the fifth connection point is connected to the second input end of the third measurement circuit; The second connection point is connected to the first input end of the third measurement circuit.

7. The dynamic electrocardiogram monitor according to claim 1, characterized in that, When the lead component is not connected to the electrocardiogram main unit, the first connection point serves as the connection point for collecting the electrocardiogram signal of the first position point of the human body, and the second connection point serves as the connection point for collecting the electrocardiogram signal of the second position point of the human body; When the lead component is connected to the electrocardiogram main unit, the first connection point serves as the connection point for collecting the electrocardiogram signal of the first position point of the human body, the second connection point serves as the connection point for collecting the electrocardiogram signal of the third position point of the human body, and the third connection point serves as the connection point for collecting the electrocardiogram signal of the fourth position point of the human body.

8. An electrocardiogram acquisition method for a dynamic electrocardiogram monitor, characterized in that, The dynamic electrocardiogram monitor is the dynamic electrocardiogram monitor described in any one of claims 1-7, and the electrocardiogram acquisition method specifically includes the following steps: When no lead piece is detected to be connected, the electrocardiogram main unit switches to the single-lead measurement mode, and the electrocardiogram main unit uses the first connection point as the connection point for collecting the electrocardiogram signal of the first position point of the human body and the second connection point as the connection point for collecting the electrocardiogram signal of the second position point of the human body to collect the electrocardiogram signal; When a lead piece is detected to be connected, the electrocardiogram main unit switches to the multi-lead measurement mode, and the electrocardiogram main unit uses the first connection point as the connection point for collecting the electrocardiogram signal of the first position point of the human body, the second connection point as the connection point for collecting the electrocardiogram signal of the third position point of the human body, and the third connection point as the connection point for collecting the electrocardiogram signal of the fourth position point of the human body to collect the electrocardiogram signal.

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