Multi-physiological signal sensing and detection apparatus and acquisition method and monitor

Abstract

This invention relates to a multi-physiological signal sensing, detection device, acquisition method, and monitor. Each sensing component includes an electrical connection cable and a probe. A pulse oximetry signal acquisition sensor connector and a pulse oximetry signal connection cable are electrically connected. An electrocardiogram (ECG) signal acquisition electrode connector is electrically connected to the ECG signal connection cable in the electrical connection cable. The ECG signal acquisition electrode connector is used for direct contact with the surface of the human body being measured. A body temperature signal connection cable and a body temperature signal acquisition sensor connector are electrically connected to acquire the body surface temperature electrical signal. The body temperature signal acquisition sensor connector serves as the body temperature electrode. By integrating ECG and pulse oximetry signal acquisition, the complex multi-head ECG cable is eliminated. Using only two sensing components, four physiological signals—ECG, pulse oximetry, temperature, and respiration—can be acquired simultaneously. This revolutionary improvement in the user experience and efficiency of physiological parameter monitoring accessories, while reducing manufacturing and usage costs, significantly enhances the overall user experience.

Description

Technical Field

[0001] This invention relates to the technical field of physiological signal acquisition devices and systems, specifically to a fusion-type multi-physiological signal sensing device, detection device, and multi-physiological signal acquisition method. This application is a divisional application of the application filed on October 20, 2021, with application number CN2021112193876 and titled "Multi-physiological signal sensing and detection device and acquisition method and monitor". Background Technology

[0002] In existing physiological signal acquisition technologies, corresponding physiological signal sensors or acquisition devices are typically set up separately for different types of physiological signals. For example, in an independent ECG signal acquisition device, all electrode connections for measuring ECG are installed in the ECG cable. Similarly, in an independent POS signal acquisition device, all electrode connections for measuring POS are installed in the POS cable. And in an independent body temperature signal acquisition device, electrode connections for measuring body temperature are installed in the body temperature cable.

[0003] This design results in a wide variety of accessories for multi-parameter monitoring equipment, making storage extremely cumbersome. Measuring three physiological parameters requires three different accessories; this means that multiple accessories must be stored separately, increasing not only the difficulty and workload of storage but also requiring the fixing of multiple different types of signal acquisition devices to different parts of the body for use.

[0004] For multi-parameter monitoring equipment, in order to accommodate different accessories, various physiological parameter measurement cable interfaces need to be set on the multi-parameter monitoring equipment. For example, the outer shell of the multi-parameter monitoring equipment needs to be equipped with blood oxygen cable interfaces, electrocardiogram cable interfaces and body temperature cable interfaces respectively. The setting of multiple interfaces increases the cost of equipment design and implementation.

[0005] For electrocardiogram (ECG) measurements, at least three electrode connection lines are required for the ECG cable. Therefore, in a standalone ECG signal acquisition device, at least three independent electrical connection lines need to be branched off from the main ECG cable for electrical connection with different ECG electrodes. Since the ECG electrodes are located in different positions, the lengths of these three independent electrical connection lines also have corresponding requirements. This results in more branches in the ECG cable and makes storage more troublesome.

[0006] like Figure 1 The diagram shows the connection of various physiological signal sensors in existing technologies for multi-parameter monitoring. Figure 1As shown, a separate blood oxygen signal sensor is set up for blood oxygen measurement; a separate body temperature signal sensor is set up for body temperature measurement; a separate electrocardiogram (ECG) signal sensor is set up for ECG measurement; and three interfaces are set up on the side of the multi-parameter monitoring device to connect to the three independent physiological signal sensors, with each interface connecting to one of the physiological signal sensors.

[0007] like Figure 1 As shown, in order to measure electrocardiogram (ECG) signals, the ECG signal sensing device is equipped with multiple ECG electrode connection points. These multiple ECG electrode connection points need to be placed in different parts of the human body, which means that the ECG signal sensing device must have multiple cables of different lengths and sufficient length. One end of these cables is connected to the ECG electrodes attached to the surface of the human body, and the other end is collected by a hub and then fed into a multi-parameter monitoring device for signal processing.

[0008] In the prior art, there are devices that integrate cables for measuring multiple physiological signals. For example, in a multi-parameter cable splitter (CN201898306U), multiple independent ECG cables are connected to the main body of a multi-parameter monitor after being transferred through the multi-parameter cable splitter.

[0009] In this integration, when using a multi-parameter monitor, multiple independent ECG signal acquisition devices are still required at the patient end: ECG electrodes and cables are connected; pulse oximeter probes are connected to pulse oximeter cables; and temperature probes are connected to temperature cables. The electrode connections of the ECG cables cannot be integrated with the pulse oximeter or temperature probes. For the subjects being monitored by the multi-parameter monitoring equipment, the ECG electrodes, pulse oximeter probes, and temperature probes still need to be fixed separately at different locations.

[0010] For the monitored patient, this often involves multiple ECG electrodes attached to the chest, a pulse oximeter clipped to the finger, and a temperature electrode fixed in a specific location. Having electrodes attached and connected in multiple different locations is extremely uncomfortable for the patient. Even slight movement can cause the multiple cables to pull against each other, affecting their connections and making the measurement process very unpleasant. Furthermore, the individual ECG signal connection lines connected to the multiple ECG electrodes are easily pulled during use and are more prone to damage than the cables at the back of the hub.

[0011] For nurses, this also requires locating suitable body parts on the patient to attach each physiological parameter acquisition device. ECG electrodes are typically attached to the chest and limbs; pulse oximeter probes are usually clamped or attached to the extremities. Connecting multiple sites and different signal acquisition devices not only makes the patient's experience during measurement very unpleasant but also increases the workload for nurses. Attaching or connecting electrodes to multiple different sites is uncomfortable and inefficient. Multiple individual ECG signal cables in contact with the body also increases the amount of disinfection work when changing users.

[0012] To reduce the inconvenience caused by cables from multiple signal acquisition devices in the design, use, and storage of multi-parameter monitoring equipment, and especially to improve patient experience and nurse efficiency, a revolutionary solution is urgently needed. However, since the advent of monitoring equipment, everyone seems to have become accustomed to or adapted to this method of setting up separate physiological signal acquisition devices, and has not found a solution that can truly improve patient experience and nurse efficiency. Summary of the Invention

[0013] The technical problem to be solved by the present invention is to avoid the shortcomings of the above-mentioned existing technical solutions, and proposes a fusion multi-physiological signal sensing device that can simultaneously collect multiple physiological parameters. It can integrate four physiological signal acquisition devices, namely electrocardiogram, blood oxygen, body temperature and respiration, and can complete the simultaneous acquisition of multiple physiological signals by using two fusion probes and corresponding cables.

[0014] The technical solution of this invention to solve the above problems is a multi-physiological signal sensing device, comprising at least two sensing components; each sensing component includes an electrical connection line group and a probe, the electrical connection line group and the probe being electrically connected; in the two sensing components, at least one sensing component has a blood oxygen signal connection line in its electrical connection line group, and at least one probe has a blood oxygen signal acquisition sensor connector; the blood oxygen signal acquisition sensor connector and the blood oxygen signal connection line are electrically connected; in each sensing component, each electrical connection line group has at least one electrocardiogram (ECG) signal connection line, and each probe has at least one ECG signal acquisition electrode connector, the ECG signal acquisition electrode connector being used for direct contact with the surface of the human body being tested; the ECG signal acquisition electrode connector in each probe is electrically connected to the ECG signal connection line in each electrical connection line group.

[0015] Each probe is equipped with two ECG signal acquisition electrode connectors; one of the two ECG signal acquisition electrode connectors in the probe is electrically connected to the ECG signal connection line in the corresponding group of electrical connection lines.

[0016] Each probe is equipped with two or more ECG signal acquisition electrode connectors; each set of electrical connection lines is equipped with two or more ECG signal connection lines; each ECG signal acquisition electrode connector in the probe is electrically connected to each ECG signal connection line in the corresponding set of electrical connection lines.

[0017] One ECG signal connection line from the electrical connection line group of any one sensing component can be used as a ground wire or a drive wire to acquire the basic electrical signal of the body surface; the remaining ECG signal connection lines in this group are electrically connected to one ECG signal acquisition electrode connector to acquire the body surface electrical signal at the corresponding location; the ECG signal connection lines in the remaining electrical connection line groups of the sensing components are electrically connected to one ECG signal acquisition electrode connector to acquire the body surface electrical signal at the corresponding location.

[0018] One of the ECG signal connection lines in the remaining sensing component's electrical connection line group is used as a body temperature signal connection line. The corresponding probe is equipped with a body temperature signal acquisition sensor connector. The body temperature signal connection line and the body temperature signal acquisition sensor connector are electrically connected to acquire the body surface temperature electrical signal.

[0019] The probe is a clamp-on probe, including an upper clamping part and a lower clamping part; the upper clamping part and the lower clamping part are movably clamped together for clamping the subject's body part; the surfaces of the upper clamping part and the lower clamping part are optionally or both provided with at least one electrocardiogram signal acquisition electrode connector; the blood oxygen signal acquisition sensor connector includes a light-emitting component and a detection component arranged opposite to each other; the light-emitting component is disposed in the upper clamping part or the lower clamping part; correspondingly, the detection component is disposed in the lower clamping part or the upper clamping part opposite to the light-emitting component.

[0020] The probe is a flat probe; the electrocardiogram signal acquisition electrode connector is set on the surface of the probe body; the blood oxygen signal acquisition sensor connector includes a light-emitting component and a detection component; both the light-emitting component and the detection component are set on the probe body.

[0021] The technical solution of the present invention to solve the above problems can also be a multi-physiological signal detection device, based on the above-mentioned multi-physiological signal sensing device; it also includes a signal processing module; each electrical connection line group in each sensing component is electrically connected to the signal processing module; each electrocardiogram signal connection line in the electrical connection line group of one sensing component is electrically connected to a set of signal input terminals of the signal processing module; each electrocardiogram signal connection line in the electrical connection line group of another sensing component is electrically connected to another set of signal input terminals of the signal processing module.

[0022] The signal processing module includes a differential operation submodule; at least one ECG signal connection line from the electrical connection line group of one sensing component is electrically connected to the positive input terminal of the differential operation submodule; one ECG signal connection line from the electrical connection line group inputs the acquired first body surface electrical signal to the positive input terminal of the differential operation module; at least one ECG signal connection line from the electrical connection line group of another sensing component is electrically connected to the negative input terminal of the differential operation submodule; the ECG signal connection line from the electrical connection line group inputs the acquired second body surface electrical signal to the negative input terminal of the differential operation module; the differential operation module performs differential operation on the first and second body surface electrical signals to obtain the ECG signal.

[0023] In the multi-physiological signal sensing device, one ECG signal connection line from the electrical connection line group of any one sensing component is used as a ground line or a drive line to obtain the basic electrical signal of the body surface; the remaining ECG signal connection lines in this group are electrically connected to one ECG signal acquisition electrode connector respectively to obtain the body surface electrical signal at the corresponding location; the differential operation submodule is electrically connected to the ECG signal connection line used as a ground line or drive line; the processed signal output by the differential operation submodule is transmitted to the body surface of the subject through the ECG signal connection line used as a ground line or drive line and its ECG signal acquisition electrode connector.

[0024] The multi-physiological signal detection device further includes a main control module for physiological signal measurement and analysis; two sets of electrical connection lines in the multi-physiological signal sensing device are respectively electrically connected to the main control module; the main control module includes the signal processing module, or the main control module and the signal processing module are electrically connected; the main control module acquires blood oxygen acquisition signals from the electrical connection line group of any sensing component.

[0025] The technical solution of the present invention to solve the above problems can also be a monitor for detecting multiple physiological signal parameters, including the above-mentioned multiple physiological signal sensing device.

[0026] The technical solution of the present invention to solve the above problems can also be a method for acquiring multiple physiological signals, based on the above-mentioned multiple physiological signal sensing device; the multiple physiological signal sensing device includes two sensing components; including the following steps: Step B: acquiring a body surface electrical signal from each of the two sensing components; Step D: selecting one of the two sensing components to acquire a blood oxygen acquisition signal; Steps B and D are not in any particular order; Step E: calculating an electrocardiogram signal using the two body surface electrical signals acquired in Step B; Step F: calculating a blood oxygen signal using the blood oxygen acquisition signal acquired in Step D; Steps E and F are not in any particular order.

[0027] Step B further includes steps B1 and B2; Step B1: Acquire multiple body surface electrical signals from the two sensing components respectively; Step B2: Select any one of the multiple body surface electrical signals obtained from each sensor component as the body surface electrical signal output by that sensor component; or perform differential operation or weighted operation on the multiple body surface electrical signals obtained from each sensor component, and use the signal obtained by differential operation or weighted operation as the body surface electrical signal output by that sensor component.

[0028] The method for acquiring multiple physiological signals further includes step G: the step of transmitting a driving signal to the body surface; in step G, the external driving signal is transmitted to the body surface through the electrocardiogram signal connection line in any sensing component of the multiple physiological signal sensing device and the electrocardiogram signal acquisition electrode connector connected thereto; step G is set before or after step B.

[0029] The method for acquiring multiple physiological signals further includes step H: acquiring a driving signal; in step H: the two surface electrical signals acquired in step B are used as the electrocardiogram (ECG) signals of the left upper limb and the right upper limb, respectively; and an ECG signal is calculated using the ECG signals of the left upper limb and the right upper limb; at the same time, a driving signal is acquired using the ECG signals of the left upper limb and the right upper limb; the driving signal acquired in step H is used as the driving signal transmitted to the body surface in step G.

[0030] Step E also includes step E1: the step of calculating the respiratory signal using the two body surface electrical signals obtained in step B.

[0031] The technical solution of the present invention to solve the above problems can also be a method for acquiring multiple physiological signals, based on the above-mentioned multiple physiological signal sensing device; the multiple physiological signal sensing device includes three sensing components; including the following steps: Step J: acquiring a body surface electrical signal from each of the three sensing components; Step K: selecting one of the three sensing components to acquire a blood oxygen acquisition signal; Step J and Step K are not in any particular order; Step L: calculating a multi-lead electrocardiogram signal using the three body surface electrical signals acquired in Step J; Step M: calculating a blood oxygen signal using the blood oxygen acquisition signal acquired in Step K.

[0032] Step I: Select any one of the three sensing components and use the ECG signal connection line in the selected sensor component as the body temperature signal connection line. The corresponding probe of the body temperature signal connection line is equipped with a body temperature signal acquisition sensor connector. The body temperature signal connection line and the body temperature signal acquisition sensor connector are electrically connected to obtain the body surface temperature electrical signal. Steps I, J and K are not in any particular order.

[0033] Step J further includes steps J1 and J2; Step J1: Acquire multiple body surface electrical signals from the three sensing components respectively; Step J2: Select any one of the multiple body surface electrical signals obtained from each sensor component as the body surface electrical signal output by that sensor component; or perform differential operation or weighted operation on the multiple body surface electrical signals obtained from each sensor component, and use the signal obtained by differential operation or weighted operation as the body surface electrical signal output by that sensor component.

[0034] The method for acquiring multiple physiological signals further includes step N: the step of transmitting a driving signal to the body surface; in step N, the external driving signal is transmitted to the body surface through the electrocardiogram signal connection line in any sensing component of the multiple physiological signal sensing device and the electrocardiogram signal acquisition electrode connector connected thereto; step N is set before or after step J.

[0035] The method for acquiring multiple physiological signals further includes step Q: acquiring the driving signal; In step Q: the three surface electrical signals obtained in step J are used as the ECG signals for the left upper limb, right upper limb, and right lower limb, respectively; and the ECG signal is calculated using the ECG signals for the left upper limb, right upper limb, and right lower limb; at the same time, the driving signal is obtained using the ECG signals for the left upper limb, right upper limb, and right lower limb; the driving signal obtained in step Q is used as the driving signal transmitted to the body surface in step N.

[0036] Step L also includes step L1: the step of calculating and obtaining respiratory signals using the three body surface electrical signals obtained in step J.

[0037] Compared with the prior art, one of the beneficial effects of this application is that it integrates the acquisition of electrocardiogram (ECG) signals and blood oxygenation signals, eliminating the need for complex multi-head ECG cables and enabling the simultaneous acquisition of both physiological signals using only two sensing components.

[0038] The second beneficial effect of this application, in practical terms, is that two pulse oximeter probes, clamped or attached to the patient's measurement site, can simultaneously obtain both electrocardiogram (ECG) and pulse oximetry (POS) signals and their related parameters. This application's solution is the result of a revolutionary, reverse-thinking approach; it liberates the entire physiological parameter detection accessory from the quagmire of separate components. This significantly simplifies the interface complexity for both the user and the patient, greatly improving the patient's monitoring experience. In typical physiological monitoring scenarios, it is no longer necessary to attach multiple ECG electrodes and connect different ECG cables sequentially to them; instead, only two or three "pulse oximeter probes" are needed to simultaneously acquire POS and ECG signals.

[0039] The third beneficial effect of this application, manifested in practical applications, lies in simplifying the interfaces of various physiological parameter accessories and monitors. Since this application requires only a minimum of two sensing components to acquire multiple physiological signals and parameters, the interface between physiological parameter accessories and the host device, such as a monitor, becomes much simpler. It also saves on accessory costs; previously, ECG cables and pulse oximeter sensors needed to be manufactured separately, resulting in higher physical hardware costs. Furthermore, existing ECG cables require at least three sub-cables to be combined into one, and these sub-cables are easily damaged due to the limited number of electrical connections and frequent operation. In this application's technical solution, no sub-cables are needed; all ECG signal connection lines and pulse oximeter signal connection lines can be combined into a single cable, not only reducing manufacturing costs but also significantly improving overall reliability.

[0040] Compared with the prior art, the fourth beneficial effect of this application is that multiple ECG signal connection lines are set in a sensing component, and each probe is equipped with at least multiple ECG signal acquisition electrode connectors, which can perform multi-point sampling; this ensures the reliability of ECG signal acquisition, that is, multi-point sampling ensures that body surface electrical signals can be acquired; at the same time, more raw multi-point body surface signals are obtained for subsequent ECG signal calculation, providing more raw signals for subsequent ECG parameter calculation, and signal quality screening can be performed from the raw signals to obtain higher quality ECG signals.

[0041] Compared with the prior art, the fifth beneficial effect of this application is that multiple ECG signal connection lines are provided in a sensing component, and one of the ECG signal connection lines is used as a ground line or a drive line to obtain the basic electrical signal of the body surface; when used as a ground line, it provides a basic signal level for the entire ECG signal measurement; when used as a drive line, it can set the potential of the entire ECG signal to a suitable position, and with the help of the ground line or drive line, a higher quality ECG signal can be obtained.

[0042] Compared with existing technologies, the sixth beneficial effect of this application is that multiple electrocardiogram (ECG) signal connection lines are provided in a single sensing component. These ECG signal connection lines can be multiplexed and used as body temperature signal connection lines. The corresponding probe is equipped with a body temperature signal acquisition sensor connector. The body temperature signal connection lines and the body temperature signal acquisition sensor connector are electrically connected to acquire the body surface temperature electrical signal. In this way, three physiological signals can be acquired using two sensing components.

[0043] Compared with the prior art, the seventh beneficial effect of this application is that, by using the two electrocardiogram (ECG) signal acquisition electrode connectors and their ECG signal connection lines respectively set in the two probes, respiratory signals can be acquired at the same time as ECG signals. In this way, four physiological signals can be acquired by using two sensing components. Attached Figure Description

[0044] Figure 1 This is a schematic diagram showing the connection of multiple physiological signal acquisition devices in the prior art; Figure 2 This is one of the schematic diagrams showing the connection relationship between the electrical connection wire group and the probe in the sensing component; the probe 100 part in the figure includes the blood oxygen signal acquisition sensor connector, namely the SpO2 light source and SpO2 detector; the probe 100 part also includes the electrocardiogram signal acquisition electrode connector, namely the ECG electrode; Figure 3 This is one of the schematic diagrams showing the connection relationships of multiple physiological signal sensing devices; Figure 4 This is a schematic diagram of a clamp-on probe in a multi-physiological signal sensing device; Figure 5 This is the second schematic diagram showing the connection relationship of multiple physiological signal sensing devices; Figure 6 This is the second schematic diagram showing the connection relationship between the electrical connection wire group and the probe in the sensing component; Figure 7 This is the third schematic diagram showing the connection relationship between the electrical connection wire group and the probe in the sensing component; Figure 8 This is the fourth schematic diagram showing the connection relationship between the electrical connection wire group and the probe in the sensing component; Figure 9 This is the fifth schematic diagram showing the connection relationship between the electrical connection wire group and the probe in the sensing component. Detailed Implementation

[0045] The contents of this application will be further described in detail below with reference to the accompanying drawings.

[0046] like Figure 2 and 3 In one embodiment of the multi-physiological signal sensing device shown, at least two sensing components are included: a first sensing component 301 and a second sensing component 302. Each sensing component includes an electrical connection line group 220 and a probe 100, which are electrically connected. In at least one of the two sensing components, a blood oxygen signal connection line 221 is provided in the electrical connection line group; the blood oxygen signal connection line 221 can be one or two.

[0047] like Figure 2 As shown, the electrical connection group 220 is encased within the cable body 210. This group of electrical connections 220 includes one electrocardiogram (ECG) signal connection line 222 and two blood oxygen saturation (POS) signal connection lines 221. The probe 100, the electrical connection group 220, and the cable body 210 together constitute a complete standard accessory for physiological parameter sensing.

[0048] like Figures 2 to 3In one embodiment of the multi-physiological signal sensing device shown, at least one probe is equipped with a blood oxygen signal acquisition sensor connector. The blood oxygen signal acquisition sensor connector includes a SpO2 light source and a SpO2 detector. The SpO2 light source and SpO2 detector can each be electrically connected to a blood oxygen signal connection line 221. Alternatively, the blood oxygen signal acquisition sensor connector can be a sensor connector that integrates the SpO2 light source and SpO2 detector, and is electrically connected to a blood oxygen signal connection line. The blood oxygen signal acquisition sensor connector is electrically connected to the blood oxygen signal connection lines in each set of electrical connection lines to achieve optical driving and optical detection.

[0049] like Figures 2 to 3 In one embodiment of the multi-physiological signal sensing device shown, there are two sensor components 300, namely a first sensing component 301 and a second sensing component 302. In both the first sensing component 301 and the second sensing component 302, each electrical connection line group 220 includes at least one electrocardiogram (ECG) signal connection line 222, and each probe includes at least one ECG signal acquisition electrode connector. The ECG signal acquisition electrode connector can be an ECG electrode pad or other types of ECG electrodes. The ECG signal acquisition electrode connector is used for direct contact with the surface of the human body being tested. The ECG signal acquisition electrode connector in each probe is electrically connected to the ECG signal connection line in each group of electrical connection lines. That is, one ECG signal connection line 222 connects to one ECG signal acquisition electrode connector.

[0050] like Figure 5 The illustrated embodiment includes two sensing components: a first sensing component 301 and a second sensing component 302. The first sensing component 301 includes a first sensing component probe 301100 and a first sensing component cable body 301210. The second sensing component 302 includes a second sensing component probe 302100 and a second sensing component cable body 302210. In this configuration, two sensing components can be used to simultaneously measure both blood oxygen saturation and electrocardiogram (ECG) parameters. Since one or more ECG signal acquisition electrode connectors and their electrical connections are provided in each of the two sensing components, and both sensing components have blood oxygen signal acquisition sensor connectors and their electrical connections, the combined use of the two sensor components allows for the acquisition of blood oxygen saturation signals from two different locations, as well as the acquisition of body surface potentials at different points. The ECG signal can then be obtained by calculating the body surface potentials at these different points.

[0051] This application ingeniously incorporates both blood oxygen and electrocardiogram (ECG) signal acquisition electrode connectors and electrical connection wires in each sensing component, simplifying the connection interface between the sensor and the patient. Only two points of sensor contact with the subject are required to acquire multiple physiological parameters. This eliminates the need for multiple ECG electrodes applied to the chest, thus avoiding the need for separate ECG cables for each electrode and the use of multi-ended ECG cables. Only two blood oxygen sensors, similar to those in existing technologies, are needed to simultaneously acquire and detect two physiological signals.

[0052] like Figure 6 In one embodiment of the multi-physiological signal sensing device shown, each probe 100 is provided with two electrocardiogram (ECG) signal acquisition electrode connectors; the two ECG signal acquisition electrode connectors in the probe 100 are respectively electrically connected to two ECG signal connection lines 222 in the corresponding group of electrical connection lines. The SpO2 light source and SpO2 detector can each be electrically connected to a blood oxygenation signal connection line 221.

[0053] In some embodiments not shown in the accompanying drawings, one of the two ECG signal acquisition electrode connectors in probe 100 is electrically connected to the ECG signal connection line in the corresponding group of electrical connection lines. The selection control command for choosing one of the two ECG signal acquisition electrode connectors can be obtained through the main control module; the selection switch for the selection control can also be set in the main control module.

[0054] like Figure 7 In the illustrated embodiment, each probe is equipped with an ECG signal acquisition electrode connector, a body temperature signal acquisition electrode connector, and two ECG signal connection lines 222. One ECG signal acquisition electrode connector (ECG electrode) is electrically connected to one ECG signal connection line 222; one body temperature signal acquisition electrode connector (body temperature electrode) is electrically connected to the other ECG signal connection line 222. Each set of electrical connection lines also includes a SpO2 light source and a SpO2 detector, which can be electrically connected to a blood oxygenation signal connection line 221, respectively. In this embodiment, the two sensing components work together to acquire at least three physiological signals: ECG, blood oxygenation, and body temperature. Of course, when needed, the two sensing components can also work together to acquire respiratory signals.

[0055] like Figure 8In the illustrated embodiment, each probe is equipped with three ECG signal acquisition electrode connectors; each set of electrical connection lines contains three ECG signal connection lines 222; each ECG signal acquisition electrode connector in the probe is electrically connected to each ECG signal connection line in the corresponding set of electrical connection lines. Each set of electrical connection lines also includes a SpO2 light source and a SpO2 detector, which can be electrically connected to a blood oxygenation signal connection line 221, respectively. Each probe is equipped with two ECG signal acquisition electrode connectors, one body temperature signal acquisition electrode connector, one ECG signal acquisition electrode connector (i.e., the ECG electrode) electrically connected to one ECG signal connection line 222; and one body temperature signal acquisition electrode connector (i.e., the body temperature electrode) electrically connected to another ECG signal connection line 222. Each set of electrical connection lines also includes a SpO2 light source and a SpO2 detector, which can be electrically connected to a blood oxygenation signal connection line 221, respectively.

[0056] like Figure 9 In the illustrated embodiment, and Figure 8 The difference between the embodiments shown is that, in Figure 9 In this configuration, the SpO2 light source and SpO2 detector are integrated into a single connection terminal, requiring only one electrical connection to the blood oxygen signal connection line 221. This blood oxygen signal connection line 221 can be time-division multiplexed to acquire the blood oxygen signal. Each set of electrical connection lines includes three electrocardiogram (ECG) signal connection lines 222; each ECG signal connection line 222 can be connected to an ECG signal acquisition electrode connector. The remaining blood oxygen signal connection line 221 can then be electrically connected to a body temperature signal acquisition electrode connector to acquire the body temperature signal.

[0057] In some embodiments not shown in the accompanying drawings, each probe is provided with three or more ECG signal acquisition electrode connectors; each group of electrical connection lines is provided with three or more ECG signal connection lines; each ECG signal acquisition electrode connector in the probe is electrically connected to each ECG signal connection line in the corresponding group of electrical connection lines. One of the multiple ECG signal connection lines in each group of electrical connection lines is selectively connected to a signal input terminal of the differential operation module.

[0058] In some embodiments not shown in the accompanying drawings, one ECG signal connection line from the electrical connection line group of any one sensing component is used as a ground or drive line to acquire basic electrical signals from the body surface. The remaining ECG signal connection lines in this group are electrically connected to one ECG signal acquisition electrode connector to acquire electrical signals from the corresponding locations on the body surface. The remaining ECG signal connection lines in the remaining sensing components are also electrically connected to one ECG signal acquisition electrode connector to acquire electrical signals from the corresponding locations on the body surface. The remaining sensing components refer to one or more sensing components whose ECG signal connection lines are not selected as ground or drive lines; that is, in two sensing components, only one of the sensing components needs to have one ECG signal connection line used as a ground or drive line, while the other ECG signal connection lines in the same sensing component can be used to acquire ECG signals at other locations. All ECG signal connection lines in another sensing component paired with or in the same group can be used to acquire ECG signals at other locations.

[0059] In embodiments not shown in the accompanying drawings, among two or more ECG signal connection lines in the electrical connection line group of a sensing component, one ECG signal connection line is selected as a ground wire or drive wire. The remaining ECG signal connection lines in this group are used to acquire the body surface electrical signal at the corresponding location. The remaining ECG signal connection lines in the group do not need to be configured with ground or drive wires for ECG signal acquisition. In this case, one ECG signal connection line in the remaining electrical connection line group of the sensing component can be used as a body temperature signal connection line. The corresponding probe is equipped with a body temperature signal acquisition sensor connector, and the body temperature signal connection line and the body temperature signal acquisition sensor connector are electrically connected to acquire the body surface temperature electrical signal. The other ECG signal connection lines in the remaining group can also be used to acquire the body surface electrical signal at the corresponding location. In this way, two sensing components can be used to simultaneously measure three physiological parameters: blood oxygenation, ECG, and body temperature.

[0060] like Figure 4 In the illustrated embodiment, the probe is a clamp-on probe, including an upper clamping portion 510 and a lower clamping portion 520. The upper clamping portion 510 and the lower clamping portion 520 are movably clamped together for clamping the test site. The surfaces of the upper clamping portion 510 and the lower clamping portion 520 are respectively provided with ECG signal acquisition electrode connectors ECG-1 and ECG signal acquisition electrode connectors ECG-2. The blood oxygen signal acquisition sensor connector includes a light-emitting component and a detection component arranged opposite to each other. The light-emitting component is disposed in the upper clamping portion or the lower clamping portion; correspondingly, the detection component is disposed in the lower clamping portion or the upper clamping portion opposite to the light-emitting component. The light-emitting component is a SpO2 light source, and the detection component is a SpO2 detector. When the clamp-on multi-physiological parameter fusion probe clamps the test site, the ECG signal acquisition electrode connector is used to adhere to the test site to acquire surface electrical signals.

[0061] In some embodiments not shown in the accompanying drawings, the surfaces of the upper clamping portion 510 and the lower clamping portion 520 of the probe are optionally or both provided with at least one electrocardiogram signal acquisition electrode connector.

[0062] In some embodiments not shown in the accompanying drawings, the probe is a flat probe; the electrocardiogram signal acquisition electrode connector is disposed on the surface of the probe body; the blood oxygen signal acquisition sensor connector includes a light-emitting component and a detection component; both the light-emitting component and the detection component are disposed on the probe body.

[0063] like Figure 3 The illustrated multi-physiological signal detection device includes a multi-physiological signal sensing device and a signal processing module. Each electrical connection group in each sensing component is electrically connected to the signal processing module. Each electrocardiogram (ECG) signal connection line in the electrical connection group of one sensing component is electrically connected to a set of signal input terminals of the signal processing module. Each ECG signal connection line in the electrical connection group of another sensing component is electrically connected to another set of signal input terminals of the signal processing module. The signal processing module acquires one surface electrical signal from each of the two sets of electrical connection lines containing the ECG signal, and calculates the ECG signal using these two surface electrical signals.

[0064] like Figure 3 In the multi-physiological signal detection device shown, the signal processing module includes a differential operation submodule; at least one electrocardiogram (ECG) signal connection line from an electrical connection line group of a sensing component is electrically connected to the positive input terminal of the differential operation submodule; one ECG signal connection line from this electrical connection line group inputs a first body surface electrical signal to the positive input terminal of the differential operation module; at least one ECG signal connection line from another electrical connection line group of a sensing component is electrically connected to the negative input terminal of the differential operation submodule; the ECG signal connection line from this electrical connection line group inputs a second body surface electrical signal to the negative input terminal of the differential operation module; the differential operation module performs differential operations on the first and second body surface electrical signals to obtain the ECG signal.

[0065] In some embodiments of the multi-physiological signal sensing device not shown in the accompanying drawings, one ECG signal connection line from the electrical connection line group of any one sensing component is used as a ground line or a drive line to acquire the basic electrical signal of the body surface; the remaining ECG signal connection lines in this group are electrically connected to one ECG signal acquisition electrode connector to acquire the corresponding body surface electrical signal; the ECG signal connection lines in the remaining group of electrical connection lines are electrically connected to one ECG signal acquisition electrode connector to acquire the corresponding body surface electrical signal; the differential operation submodule is electrically connected to the ECG signal connection line used as a ground line or drive line; the processed signal output by the differential operation submodule is transmitted to the body surface of the subject via the ECG signal connection line used as a ground line or drive line and its ECG signal acquisition electrode connector.

[0066] like Figure 3 The multi-physiological signal detection device shown also includes a main control module for physiological signal measurement and analysis; two sets of electrical connection lines in the multi-physiological signal sensing device are respectively electrically connected to the main control module; the main control module includes the signal processing module, or the main control module and the signal processing module are electrically connected; the main control module acquires blood oxygen acquisition signals from any one of the sets of electrical connection lines.

[0067] A monitor for detecting multiple physiological signal parameters, which is not shown in some of the accompanying drawings, includes, in an embodiment, the aforementioned multiple physiological signal sensing device.

[0068] In an embodiment of a multi-physiological signal acquisition method not shown in some of the accompanying drawings; the multi-physiological signal sensing device includes two sensing components; based on the above-mentioned multi-physiological signal sensing device, the method includes the following steps: Step B: Acquire a body surface electrical signal from each of the two sensing components; Step B also includes steps B1 and B2; Step B1: Acquire multiple body surface electrical signals from the two sensing components respectively; Step B2: Select any one or more of the multiple body surface electrical signals obtained from each sensor component and use them as the body surface electrical signals output by that sensor component after processing; Step D: Select one of the two sensing components to acquire the blood oxygen acquisition signal; Steps B and D are not in any particular order; Step E: Calculate the electrocardiogram (ECG) signal using the two surface electrical signals obtained in Step B; Step F: Calculate the blood oxygen signal using the blood oxygen acquisition signal obtained in step D.

[0069] Steps E and F are not in any particular order.

[0070] It also includes step G: the step of delivering a driving signal to the body surface; In step G, an external driving signal is transmitted to the body surface through the ECG signal connection line and the ECG signal acquisition electrode connector connected to any one of the sensing components of the multi-physiological signal sensing device; step G is set before or after step B.

[0071] In one embodiment of the multi-physiological signal acquisition method, the method further includes step H: acquiring a driving signal; in step H: the two surface electrical signals acquired in step B are used as the electrocardiogram (ECG) signals of the left and right upper limbs, respectively; and an ECG signal is calculated using the ECG signals of the left and right upper limbs; simultaneously, a driving signal is acquired using the ECG signals of the left and right upper limbs; the driving signal acquired in step H is used as the driving signal transmitted to the body surface in step G. The specific method for acquiring the driving signal using the ECG signals of the left and right upper limbs is prior art and will not be elaborated here.

[0072] Step E also includes step E1: the step of calculating the respiratory signal using the two body surface electrical signals obtained in step B.

[0073] In an embodiment of a multi-physiological signal acquisition method not shown in some of the accompanying drawings; based on the above-described multi-physiological signal sensing device; the multi-physiological signal sensing device includes three sensing components; and includes the following steps: Step 1: Select one sensor component from the three sensing components, and use the ECG signal connection line in the selected sensor component as the body temperature signal connection line. The corresponding probe of the body temperature signal connection line is equipped with a body temperature signal acquisition sensor connector. The body temperature signal connection line and the body temperature signal acquisition sensor connector are electrically connected to obtain the body surface temperature electrical signal. Step J: Acquire one surface electrical signal from each of the three sensing components; Step K: Select one of the three sensing components to acquire the blood oxygen acquisition signal; Steps I, J, and K are not in any particular order; Step L: Calculate the multi-lead electrocardiogram signal using the three body surface electrical signals obtained in step J; Step M: Calculate the blood oxygen signal using the blood oxygen acquisition signal obtained in step K.

[0074] Step J also includes steps J1 and J2; Step J1: Acquire multiple body surface electrical signals from the three sensing components respectively; Step J2: Select any one or more of the multiple body surface electrical signals obtained from each sensor component and use them as the body surface electrical signals output by that sensor component after processing.

[0075] In one embodiment of the multi-physiological signal acquisition method, the method further includes step N: a step of transmitting a driving signal to the body surface; in step N, an external driving signal is transmitted to the body surface through an electrocardiogram (ECG) signal connection line in any one of the sensing components of the multi-physiological signal sensing device and an ECG signal acquisition electrode connector connected thereto; step N is set before or after step J.

[0076] In one embodiment of the multi-physiological signal acquisition method, the method further includes step Q: acquiring a driving signal; in step Q: the three surface electrical signals acquired in step J are used as the electrocardiogram (ECG) signals of the left upper limb, right upper limb, and right lower limb, respectively; and an ECG signal is calculated using the ECG signals of the left upper limb, right upper limb, and right lower limb; simultaneously, a driving signal is acquired using the ECG signals of the left upper limb, right upper limb, and right lower limb; the driving signal acquired in step Q is used as the driving signal transmitted to the body surface in step N.

[0077] In one embodiment of the multiple physiological signal acquisition method, step L further includes step L1: calculating a respiratory signal using the three body surface electrical signals acquired in step J.

[0078] The above are merely embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made using the contents of the specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A multi-physiological signal sensing device, characterized by include, Two sensing components; Each sensing component includes an electrical connection wire group and a probe, the electrical connection wire group and the probe being electrically connected; A pulse oximetry signal connection line is provided in the electrical connection wire group of a sensing component, and a pulse oximetry signal acquisition sensor connector is provided in a probe; the pulse oximetry signal acquisition sensor connector and the pulse oximetry signal connection line are electrically connected. Each sensing component has two or more ECG signal connection lines in each group of electrical connection lines; each probe has two ECG signal acquisition electrode connectors; the ECG signal acquisition electrode connectors are used to make direct contact with the surface of the human body being tested; each ECG signal acquisition electrode connector in the probe is electrically connected to each ECG signal connection line in the corresponding group of electrical connection lines. One ECG signal connection line from the electrical connection line group of any one sensing component can be used as a ground line or a drive line to acquire the basic electrical signal of the body surface; the remaining ECG signal connection lines in this group are electrically connected to one ECG signal acquisition electrode connector respectively to acquire the body surface electrical signal at the corresponding location. The ECG signal connection lines in the electrical connection lines of the remaining sensing components are electrically connected to one ECG signal acquisition electrode connector to obtain the body surface electrical signal at the corresponding location. One of the ECG signal connection lines in the electrical connection line group of the remaining sensing components is used as a body temperature signal connection line. The corresponding probe is equipped with a body temperature signal acquisition sensor connector. The body temperature signal connection line and the body temperature signal acquisition sensor connector are electrically connected to obtain the body surface temperature electrical signal. The connector for the body temperature signal acquisition sensor is a body temperature electrode; The probe is a clamping probe, including an upper clamping part and a lower clamping part; the upper clamping part and the lower clamping part are movably clamped together to clamp the test site.

2. The multi-physiological signal sensing device according to claim 1, characterized in that, Each probe is equipped with two ECG signal acquisition electrode connectors; One of the two ECG signal acquisition electrode connectors in the probe is electrically connected to the ECG signal connection line in the corresponding group of electrical connection lines.

3. A multi-physiological signal detection device, characterized in that, The multi-physiological signal sensing device based on any one of claims 1 to 2 above; It also includes a signal processing module; each electrical connection group in each sensing component is electrically connected to the signal processing module. Each ECG signal connection line in the electrical connection line group of a sensing component is electrically connected to a set of signal input terminals of the signal processing module; Each ECG signal connection line in the electrical connection line group of another sensing component is electrically connected to another set of signal input terminals of the signal processing module.

4. A monitor for multi-physiological signal parameter detection, characterized in that include, The multi-physiological signal sensing device according to any one of claims 1 to 2; Or the multi-physiological signal detection device as described in claim 3.

5. A method for acquiring multiple physiological signals, characterized in that, Based on the multi-physiological signal sensing device according to claim 1; The multi-physiological signal sensing device includes two sensing components; Includes the following steps: Step B: Acquire a body surface electrical signal from each of the two sensing components; Step D: Select one of the two sensing components to acquire the blood oxygen acquisition signal; Steps B and D are not in any particular order. Step E: Calculate the electrocardiogram (ECG) signal using the two surface electrical signals obtained in Step B; Step F: Calculate the blood oxygen signal using the blood oxygen acquisition signal obtained in step D; Steps E and F are not in any particular order.

6. The method for acquiring multiple physiological signals according to claim 5, characterized in that, It also includes step I: Select any sensor component, use the electrocardiogram signal connection line in the selected sensor component as the body temperature signal connection line, and set a body temperature signal acquisition sensor connector in the corresponding probe of the body temperature signal connection line. The body temperature signal connection line and the body temperature signal acquisition sensor connector are electrically connected to obtain the body surface temperature electrical signal.

7. The method for acquiring multiple physiological signals according to claim 5, characterized in that, Step B also includes steps B1 and B2; Step B1: Acquire multiple body surface electrical signals from the two sensing components respectively; Step B2: Select any one of the multiple body surface electrical signals obtained from each sensor component as the body surface electrical signal output by that sensor component; Alternatively, differential or weighted operations can be performed on multiple body surface electrical signals obtained by each sensor component, and the signals obtained by the differential or weighted operations can be used as the body surface electrical signals output by the sensor component. Step E also includes step E1: the step of calculating the respiratory signal using the two body surface electrical signals obtained in step B.

8. The method for acquiring multiple physiological signals according to claim 5, characterized in that, It also includes step G: the step of delivering a driving signal to the body surface; In step G, the external driving signal is transmitted to the body surface through the ECG signal connection line in any one of the sensing components of the multi-physiological signal sensing device and the ECG signal acquisition electrode connector connected thereto. Step G is set before or after step B; It also includes step H: the step of acquiring the drive signal; In step H: using the two surface electrical signals obtained in step B, The left and right upper limb ECG signals are used respectively; and the ECG signals are calculated using the left and right upper limb ECG signals; at the same time, the driving signals are obtained using the left and right upper limb ECG signals. The driving signal obtained in step H is used as the driving signal delivered to the body surface in step G.

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