Portable electrocardiosignal acquisition equipment

Abstract

The invention relates to the technical field of electrocardiosignal collection, in particular to a portable electrocardiosignal collection device which comprises a detector body and a sliding turnover assembly, and a plurality of electrode contacts are arranged on the bottom face of the sliding turnover assembly and the bottom face of the detector body. Mounting cylinders are arranged on the outer sides of the electrode contacts, telescopic assemblies are arranged below the mounting cylinders, extrusion wetting assemblies located in the mounting cylinders are arranged above the telescopic assemblies, and communication assemblies are arranged between the extrusion wetting assemblies and the telescopic assemblies; the telescopic assembly comprises a first restraining piece, a second restraining piece is arranged in the first restraining piece, and when the first restraining piece makes contact with the human body and squeezes the human body, the second restraining piece extends, and the squeezing wetting assembly humidifies the electrode contact through the communicating assembly; by arranging the telescopic assembly and the extrusion wetting assembly, the area, connected with the human body, of the electrode contact is in a wet state in the electrocardiogram monitoring process, the impedance of the connecting position is reduced, and the baseline drift phenomenon is avoided.

Description

Technical Field

[0001] This invention relates to the field of electrocardiogram (ECG) signal acquisition technology, and in particular to a portable ECG signal acquisition device. Background Technology

[0002] Electrocardiogram (ECG) signals are key physiological signals reflecting the electrical activity of the heart and play a vital role in the diagnosis and monitoring of heart diseases. The ECG signal acquisition process involves the following steps: First, ECG signals are collected from the body surface using ECG detection electrodes; then, these signals are amplified by an amplification circuit and filtered to eliminate high-frequency interference, extracting ECG signals with frequencies ranging from 0.05 to 100 Hz; next, the analog ECG signals are converted into digital signals by an A / D converter and stored in a data storage circuit; finally, the digital signals are displayed on the screen of a graphic display circuit.

[0003] However, it is worth noting that traditional ECG monitoring devices typically suffer from drawbacks such as large size, high cost, and limited portability. These limitations significantly hinder the application of ECG monitoring devices in real-time, on-site patient monitoring.

[0004] Chinese patent application number CN202323379415.8 discloses a portable electrocardiograph (ECG), including an ECG body. A fixing device is fixedly connected to the front of the ECG body. A storage compartment is opened at the top of the ECG body. An installation groove is opened at the bottom of the inner cavity of the storage compartment. An installation and removal mechanism is movably connected to the inner cavity of the installation groove. A conductive liquid box is placed in the inner cavity of the storage compartment. A sliding cover is movably connected to the top of the inner cavity of the storage compartment. A number of wires are provided on the back of the ECG body. The fixing device includes a shell. By providing the fixing device, the position of the strap can be adjusted and fixed and its length can be stretched so that the strap is adapted to the patient's body circumference. After the strap is wrapped around the patient's upper body, the ECG is fixed to the patient's body for detection, which further improves the portability of the ECG and allows the patient to move easily during ECG monitoring.

[0005] Although the aforementioned device can adjust and stabilize the position and extension length of the strap through the fixing mechanism, thus significantly improving the portability of the electrocardiograph, it still faces some challenges in practical applications. When the electrode contacts of the electrocardiograph are in contact with the human body, if they are in a low-temperature state, they are prone to causing muscle tremors in the contact area. These tremors generate high-frequency baseline noise, which in turn interferes with the accuracy of the electrocardiogram displayed by the electrocardiograph.

[0006] Furthermore, to ensure accurate capture of ECG signals, the electrodes must fit snugly against the skin. Unstable electrode connections, such as loosening or displacement, will reduce the contact area between the electrode and the skin, hindering effective signal transmission. Simultaneously, the area where the electrode connects to the body must be kept moist to reduce high impedance at the connection point, thereby preventing baseline drift during ECG monitoring.

[0007] Therefore, developing a portable electrocardiogram (ECG) signal acquisition device that can effectively overcome the aforementioned technical challenges is particularly crucial and urgent. Summary of the Invention

[0008] The purpose of this invention is to provide a portable electrocardiogram (ECG) signal acquisition device to solve the technical problems mentioned in the background section.

[0009] To achieve the above objectives, the present invention provides the following technical solution: A portable electrocardiogram (ECG) signal detection device includes a detector body and a sliding flip assembly. The bottom surfaces of the sliding flip assembly and the detector body are provided with multiple electrode contacts, and the distribution of the electrode contacts corresponds to the positions of medical chest lead electrodes. The outer side of each electrode contact is provided with a mounting cylinder, a telescopic component is provided below the mounting cylinder, a squeezing and wetting component is provided above the telescopic component and located inside the mounting cylinder, and a communication component is provided between the squeezing and wetting component and the telescopic component. The telescopic component includes a first constraint member, and a second constraint member is disposed inside the first constraint member. When the first constraint member comes into contact with and is squeezed by a human body, the second constraint member extends, and the squeezing and wetting component humidifies the electrode contacts through the connecting component.

[0010] Preferably, when the second constraint member is in the extended state, the end of the electrode contact away from the mounting cylinder is located inside the second constraint member; When the second constraint is in the retracted state, the end of the electrode contact away from the mounting cylinder is located on the outside of the second constraint.

[0011] Preferably, the extrusion wetting assembly includes an extrusion ring plate disposed inside the mounting cylinder, the side of the extrusion ring plate facing the top of the mounting cylinder having a receiving member, the outer side of the receiving member having an elastic member, one end of the elastic member being connected to the mounting cylinder, and the other end of the elastic member being connected to the extrusion ring plate.

[0012] Preferably, the first constraint member includes an annular telescopic portion disposed on the side of the extrusion ring plate away from the receiving member, the inner side of the annular telescopic portion is provided with an array of air holes, the outer side of the annular telescopic portion is provided with an external connecting pipe, and the other end of the external connecting pipe is connected to an air supply device.

[0013] Preferably, the vent hole and the end of the electrode contact furthest from the mounting cylinder are on the same horizontal plane; A temperature sensor is installed at the end of the electrode contact near the mounting cylinder.

[0014] Preferably, the second constraint member includes an annular support portion disposed within the annular telescopic portion, the annular support portion dividing the annular telescopic portion into inner and outer regions; The annular support is provided with an inner connecting pipe, and the other end of the inner connecting pipe is connected to the air intake device. The annular support is provided with arrayed connecting parts that connect the inner and outer regions.

[0015] Preferably, the communication component includes a connecting pipe disposed inside the annular telescopic part, one end of which is connected to a spray hole opened on the inner side of the annular telescopic part; The other end of the connecting pipe is connected to a pressure hole provided on the receiving element.

[0016] Preferably, the injection hole and the end of the electrode contact away from the mounting cylinder are on the same horizontal plane; the end of the electrode contact away from the mounting cylinder is provided with a rounded portion.

[0017] Preferably, the upper surface of the detector body is provided with symmetrically distributed electrode plates, which are located around the periphery of the detector body.

[0018] Preferably, the sliding flipping assembly includes a limiting groove formed on the detector body, a limiting slider is provided inside the limiting groove, and a flipping support arm is rotatably connected to the end of the limiting slider.

[0019] The technical effects and advantages of this invention are as follows: 1. This invention utilizes the cooperation of a first and second constraint member to precisely heat the end of the electrode contact by spraying hot air from an air hole. This effectively avoids muscle tremors caused by excessive temperature differences between the electrode contact and human skin, improving the accuracy of ECG monitoring and user comfort. In practical applications, this heating method ensures that the electrode contact reaches an ideal temperature state when in contact with the human body, thereby greatly reducing interference factors caused by temperature discomfort and making ECG monitoring results more accurate and reliable.

[0020] 2. This invention achieves effective wetting and disinfection of the electrode contact tip through the cooperation of the second constraint member and the squeezing and wetting component. When the second constraint member applies appropriate pressure to the human body, it squeezes the wetting component, thereby pushing the saline solution or conductive paste inside the container to be evenly sprayed onto the electrode contact tip through the connecting component. This reduces the impedance at the connection point between the electrode contact and the human body, avoiding baseline drift that may occur during ECG monitoring. In practical applications, this wetting and disinfection method ensures good conductivity between the electrode contact and the human skin, while reducing detection errors caused by skin contamination or dryness.

[0021] 3. This invention, by setting up a first constraint member and a second constraint member, and utilizing the telescopic function of the annular support and the annular telescopic part, achieves precise extension and firm fixation of the electrode contacts. This ensures that the electrode contacts maintain a tight and stable connection when in contact with human skin, effectively preventing loosening or displacement during use. In practical applications, this extension and fixation method ensures the stability and continuity of ECG signals during acquisition, thereby greatly improving the quality of ECG signal acquisition. Simultaneously, because the tight contact between the electrode contacts and human skin is effectively guaranteed, it also reduces detection errors and interference factors caused by poor contact.

[0022] 4. By setting a first constraint and a second constraint, when the detector body is in a non-use condition, the second constraint is in a first working state. The first constraint wraps around the body of the electrode contact, so as to prevent the electrode contact from having a strong collision with the ground or other hard areas when the detector body falls, which would cause damage to the end of the electrode contact and thus affect the subsequent use of the detector body. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the bottom surface of the main structure of the present invention; Figure 3 This is a schematic diagram of the sliding flipping component of the present invention; Figure 4 This is a schematic diagram showing the distribution of the electrode contacts of the present invention; Figure 5 This is a schematic diagram of the structure of the mounting cylinder of the present invention; Figure 6 This is a schematic diagram of the structure of the first constraint member of the present invention; Figure 7 This is a schematic diagram of the structure of the second constraint member of the present invention; Figure 8 This is a schematic diagram of the internal structure of the mounting cylinder of the present invention; Figure 9This is a schematic diagram showing the connection between the first constraint member and the second constraint member of the present invention; Figure 10 This is a first working schematic diagram of the first constraint member of the present invention; Figure 11 For the present invention Figure 10 Enlarged structural diagram at point A; Figure 12 This is a second working schematic diagram of the first constraint member of the present invention; Figure 13 This is a third working schematic diagram of the first constraint member of the present invention.

[0024] The attached figures are labeled as follows: 1. Detector body; 2. Sliding and flipping assembly; 201. Limiting groove; 202. Limiting slider; 203. Flipping support arm; 3. Electrode contact; 4. Mounting cylinder; 5. Extrusion and wetting assembly; 501. Extrusion ring plate; 502. Receiving component; 503. Elastic component; 6. Telescopic assembly; 601. First constraint component; 6011. Annular telescopic part; 6012. Air hole; 6013. External connecting pipe; 602. Second constraint component; 6021. Annular support part; 6022. Connecting part; 6023. Internal connecting pipe; 7. Connecting assembly; 701. Pressure hole; 702. Connecting pipe; 703. Spray hole; 8. Temperature sensor; 9. Electrode plate. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention. Example 1

[0026] Reference Figures 1 to 4 As shown, the present invention proposes a portable electrocardiogram (ECG) signal detection device, which includes a detector body 1 and a sliding flip assembly 2. The bottom surface of the sliding flip assembly 2 and the detector body 1 is provided with a plurality of electrode contacts 3, and the distribution position of the electrode contacts 3 corresponds to the position of the medical chest lead electrodes.

[0027] The electrode contacts 3, distributed on the bottom surface of the sliding flip assembly 2 and the detector body 1, are mainly connected to the chest of the human body. The distribution of the electrode contacts 3 on the bottom surface of the sliding flip assembly 2 and the detector body 1 is as follows: Figure 4 As shown.

[0028] Chest leads are specifically designed to capture the electrical activity of the anterior, lateral, and posterior walls of the heart. These leads collect electrical signals from the heart via electrode contacts 3 placed on the chest and convert them into electrocardiogram waveforms for doctors to analyze.

[0029] V1 lead: placed at the right sternal border in the 4th intercostal space, mainly reflects the electrical activity of the right ventricle or the apex of the heart.

[0030] V2 lead: placed at the left sternal border in the 4th intercostal space, opposite to V1 lead, it also reflects the electrical activity of the right ventricle or the apex of the heart, but may be more biased towards the left side of the heart.

[0031] Lead V3: Located at the midpoint of the line connecting leads V2 and V4, it reflects the electrical activity of the anterior wall of the heart and is the area where the right ventricle transitions to the left ventricle.

[0032] V4 lead: placed at the intersection of the midclavicular line and the 5th intercostal space, mainly reflects the electrical activity of the anterior wall of the left ventricle.

[0033] Lead V5: Placed at the same level as V4, but at the anterior axillary line, it reflects the electrical activity of the left ventricular lateral wall.

[0034] Lead V6: Placed at the same level as V4 and V5, but located in the midaxillary line, it further reflects the electrical activity of the lateral or posterior wall of the left ventricle.

[0035] Leads LL and RL are positioned below leads V1 and V2, respectively. In electrocardiogram (ECG) recordings, leads LL and RL are typically used as reference electrodes or "irrelevant electrodes." They do not directly participate in the formation of the ECG waveform but serve as reference points for the ECG machine, helping to stabilize the recording.

[0036] Reference Figures 1 to 3 As shown, symmetrically distributed electrode plates 9 are provided on the upper surface of the detector body 1, and the electrode plates 9 are located on the periphery of the detector body 1.

[0037] The two electrode pads 9 correspond to leads RA and LA, respectively. Leads RA and LA represent the electrode connections on the right and left arms during electrocardiogram recording. When using this device, the user crosses their arms, with each wrist contacting the electrode pads 9 on the upper surface of the main body 1. Leads RA and LA record the changes in electrical vectors generated during depolarization and repolarization of the heart.

[0038] Reference Figure 3 As shown, the sliding flip assembly 2 includes a limiting groove 201 opened on the detector body 1, a limiting slider 202 is provided inside the limiting groove 201, and a flip support arm 203 is rotatably connected to the end of the limiting slider 202.

[0039] Leads V4, V5, and V6 are distributed on the flip arm 203 to ensure that the three are at the same level.

[0040] In use, the flip arm 203 must first be pulled out of the limiting slide groove 201. Due to the limiting effect of the limiting slide groove 201 on the limiting slider 202, part of the limiting slider 202 remains inside the limiting slide groove 201, while the connection between the limiting slider 202 and the flip arm 203 extends out of the limiting slide groove 201, so that the flip arm 203 can rotate around the connection, allowing the V4, V5 and V6 leads distributed on the flip arm 203 to contact the chest and armpit area of ​​the human body.

[0041] During the testing process, the person being tested should lie down naturally and place the testing device 1 on their chest. Then, the person crosses their arms and places their wrists in contact with the electrode pads 9 on the upper surface of the testing device 1, thus connecting the upper limb electrodes. Afterwards, the person relaxes naturally, and by applying pressure with their arms, the electrode contacts 3 distributed on the bottom surface of the testing device 1 contact the corresponding positions on the chest, abdomen, and armpits, completing the connection between the person and the chest and lower limb electrodes.

[0042] Next, the detector body 1 is activated to capture electrocardiogram (ECG) signals. When the heart's electrical activity occurs, a weak current is generated. This current is conducted through body tissues to the body surface and captured by electrode contacts 3 placed on the chest. Electrode contacts 3 transmit the collected electrical signals to the detector body 1, where a signal amplifier amplifies these signals to increase their intensity. Then, a filter removes noise and interference from the signal to obtain a more accurate ECG signal. Example 2

[0043] Although the aforementioned device can achieve a twelve-lead connection between electrode contact 3 and the human body, in actual use, if electrode contact 3 is in a low-temperature state when in contact with the human body, it can easily cause muscle tremors in the contact area, generating high-frequency baseline noise and interfering with the accuracy of the electrocardiogram displayed by the electrocardiogram monitor. Furthermore, to ensure accurate capture of the electrocardiogram signal, the electrode needs to be in close contact with the human skin surface; unstable connections, such as loosening or displacement, will reduce the contact area and hinder effective conduction of the electrocardiogram signal. Simultaneously, the area where the electrode connects to the human body needs to be kept moist to reduce high impedance and avoid baseline drift during electrocardiogram monitoring. Therefore, technical improvements are made based on Embodiment 1.

[0044] Reference Figures 1 to 13 As shown, an installation cylinder 4 is provided on the outer side of the electrode contact 3, a telescopic component 6 is provided below the installation cylinder 4, a squeezing and wetting component 5 is provided above the telescopic component 6 and located inside the installation cylinder 4, and a connecting component 7 is provided between the squeezing and wetting component 5 and the telescopic component 6. The telescopic component 6 includes a first constraint member 601, and a second constraint member 602 is provided inside the first constraint member 601. When the first constraint member 601 comes into contact with and is squeezed by the human body, the second constraint member 602 extends and the squeezing and wetting component 5 humidifies the electrode contact 3 through the connecting component 7.

[0045] When the second constraint 602 is in the first working state, the squeezing and wetting component 5 is in an unpressurized state, and the bottom height of the electrode contact 3 is higher than the bottom height of the first constraint 601.

[0046] When the second constraint 602 is in the second working state, the squeezing and wetting component 5 is under pressure, and the bottom height of the electrode contact 3 is still higher than the bottom height of the first constraint 601.

[0047] When the second constraint 602 is in the third working state, the squeezing and wetting component 5 is in an unpressurized state, and the bottom height of the electrode contact 3 is lower than the bottom height of the first constraint 601.

[0048] Reference Figures 10 to 13 As shown, when the second constraint member 602 is in the extended state, the end of the electrode contact 3 away from the mounting cylinder 4 is located inside the second constraint member 602; When the second constraint member 602 is in the contracted state, the squeezing and wetting component 5 is in the normal state, and the end of the electrode contact 3 away from the mounting cylinder 4 is located outside the second constraint member 602.

[0049] Reference Figures 7 to 13 As shown, the extrusion wetting assembly 5 includes an extrusion ring plate 501 disposed inside the mounting cylinder 4. The side of the extrusion ring plate 501 facing the inner top of the mounting cylinder 4 is provided with a receiving member 502. An elastic member 503 is provided on the outer side of the receiving member 502. One end of the elastic member 503 is connected to the mounting cylinder 4, and the other end of the elastic member 503 is connected to the extrusion ring plate 501.

[0050] When the first constraint member 601 comes into contact with the human body, the second constraint member 602 is extended. The second constraint member 602 pushes the extrusion ring plate 501 upward. The extrusion ring plate 501 extrudes the receiving member 502, so that the saline or conductive paste filled in the receiving member 502 is discharged through the connecting component 7 and sprayed on the bottom end of the electrode contact 3, so that the surface of the electrode contact 3 is wet when it captures the electrocardiogram signal, thus avoiding baseline drift.

[0051] The elastic element 503 includes a spring, and a pressure sensor is provided at the connection between the spring and the compression ring plate 501. The amount of expansion and contraction of the elastic element 503 can be determined by detecting the value of the pressure sensor.

[0052] Reference Figures 1 to 13As shown, the first constraint member 601 includes an annular telescopic portion 6011 disposed on the side of the extrusion ring plate 501 away from the receiving member 502. The inner side of the annular telescopic portion 6011 is provided with an array of air holes 6012, and the outer side of the annular telescopic portion 6011 is provided with an external connecting pipe 6013. The other end of the external connecting pipe 6013 is connected to an air supply device.

[0053] The air supply device includes a first micro fan installed inside the detector body 1. The first micro fan supplies air into the annular telescopic part 6011 through the external connecting pipe 6013. The air is heated by the flexible heating element installed in the annular telescopic part 6011 and ejected from the air hole 6012.

[0054] The working principle of flexible heating elements is existing technology and will not be elaborated further here.

[0055] Reference Figures 9 to 10 As shown, the vent 6012 and the end of the electrode contact 3 away from the mounting cylinder 4 are on the same horizontal plane; a temperature sensor 8 is provided at the end of the electrode contact 3 near the mounting cylinder 4.

[0056] The hot air ejected from the vent 6012 acts directly on the end of the electrode contact 3 that is in contact with the human body. When the temperature sensor 8 located at the other end of the electrode contact 3 detects that the temperature has reached the set value, it indicates that the electrode contact 3 has completed heating. Preferably, the set value of the temperature sensor 8 is set between 35°C and 40°C.

[0057] Reference Figures 8 to 13 As shown, the second constraint member 602 includes an annular support portion 6021 disposed within the annular telescopic portion 6011, which divides the annular telescopic portion 6011 into inner and outer regions. An inner connecting pipe 6023 is provided on the annular support part 6021, and the other end of the inner connecting pipe 6023 is connected to the air intake and air delivery device. The air intake device includes a second micro fan installed inside the detector body 1. When the second micro fan rotates forward, it inputs air into the annular support 6021 through the inner connecting pipe 6023, thereby controlling the annular support 6021 to gradually expand and elongate.

[0058] When the second micro fan reverses, the air inside the annular support 6021 is extracted through the inner connecting pipe 6023, thereby controlling the annular support 6021 to gradually contract.

[0059] The annular support 6021 is provided with arrayed connecting parts 6022, which connect the inner and outer regions.

[0060] The connecting part 6022 is a connecting channel provided on the annular support part 6021, which is intended to connect the inner and outer areas of the annular telescopic part 6011 by providing the connecting channel.

[0061] Reference Figures 9 to 13 As shown, the connecting component 7 includes a connecting pipe 702 disposed inside the annular telescopic part 6011. One end of the connecting pipe 702 is connected to a spray hole 703 opened inside the annular telescopic part 6011; the other end of the connecting pipe 702 is connected to a pressure hole 701 disposed on the receiving member 502.

[0062] When the second constraint member 602 expands and elongates, and the first constraint member 601 comes into contact with the human body, the second constraint member 602 simultaneously pushes the extrusion ring plate 501 upward. The extrusion ring plate 501 extrudes the receiving member 502. When the extrusion pressure of the extrusion ring plate 501 exceeds the bearing capacity of the pressure hole 701, the saline solution or conductive paste in the receiving member 502 will enter the pressure hole 701 from the receiving member 502, and after being transmitted through the connecting pipe 702, it will finally be sprayed out from the spray hole 703 and act on the electrode contact 3.

[0063] The pressure port 701 includes a through hole formed on the receiving member 502. An elastic pressure valve plate is provided in the through hole. When the pressure on the elastic pressure valve plate is too high, the through hole opens; when the pressure on the elastic pressure valve plate is low, the through hole closes.

[0064] Reference Figures 9 to 13 As shown, the injection hole 703 and the end of the electrode contact 3 away from the mounting cylinder 4 are on the same horizontal plane; the end of the electrode contact 3 away from the mounting cylinder 4 is provided with a rounded part.

[0065] After the saline solution or conductive paste sprayed from the spray hole 703 comes into contact with the electrode contact 3, it will gradually move towards the end of the electrode contact 3 due to the guidance of the rounded part, so that the saline solution or conductive paste can be more evenly distributed on the electrode contact 3.

[0066] In the initial state, the second constraint member 602 is in the first working state, at which time the squeezing and wetting component 5 is in an unpressurized state, and the bottom height of the electrode contact 3 is higher than the bottom height of the first constraint member 601.

[0067] When in use, first press the start switch set on the detector body 1 to start the control system set inside the detector body 1. After the control system is started, the heating process of electrode contact 3, the humidification process of electrode contact 3, the extension process of electrode contact 3, and the fixing process of electrode contact 3 are performed in sequence.

[0068] It is important to note that after each step is completed, the control system will provide prompts to the user through a built-in prompting program within the detector body 1, allowing the user to prepare in advance for the subsequent steps of the electrode contacts 3. The prompts can be visual or audio, with audio prompts being preferred, as audio prompts facilitate user adjustments to their own state according to the indicated steps.

[0069] After the control system is started, the first step is to heat the electrode contact 3. Specifically, the control system controls the start of the air supply device installed on the detector body 1 and the start of the flexible heating plate installed inside the annular telescopic part 6011. After the air supply device is started, air is input into the annular telescopic part 6011 through the external connecting pipe 6013. After entering the annular telescopic part 6011, the air is heated by the flexible heating plate and then discharged from the air hole 6012. The discharged air heats the end of the electrode contact 3 to prevent muscle tremors in the contact area between the electrode contact 3 and the human skin due to the temperature difference between the two.

[0070] It should be noted that: Figure 10 For example, the heating method of the hot air to the electrode contact 3 is from bottom to top. When the value detected by the temperature sensor 8 located at the top of the electrode contact 3 reaches the set value, it indicates that the heating process of the electrode contact 3 is completed.

[0071] After the heating process of electrode contact 3 is completed, the control system controls the gas supply device to stop operating and prompts the user to adjust their posture so that the humidification process of electrode contact 3 can be carried out.

[0072] After the heating process of electrode contact 3 is completed, the person lies down naturally, placing the detector body 1 on their chest. Then, the person crosses their hands, with each wrist contacting the electrode plate 9 on the upper surface of the detector body 1, thus completing the connection of the upper limb lead electrodes. Afterward, the person relaxes naturally, and the pressure from the arms causes the second constraint member 602 distributed on the detector body 1 and the flip arm 203 to contact the corresponding positions on the front of the chest and abdomen and the chest and armpits of the person, that is, the bottom area of ​​the annular telescopic part 6011 is in contact with the surface of the person.

[0073] After the second constraint 602 comes into contact with the human body, the control system determines whether the second constraint 602 has been successfully connected to the human body by detecting the value of the pressure sensor.

[0074] When the control system detects that the pressure sensor value is greater than the initial value but less than the set threshold, it indicates that the second constraint member 602 has completed the connection with the human body, and the humidification process of the electrode contact 3 can begin. The specific steps of the humidification process are as follows: the air intake device is activated, and the air intake device inputs air into the annular support part 6021 through the inner connecting pipe 6023. After the air enters the annular support part 6021, the annular support part 6021 gradually elongates. During the elongation of the annular support part 6021, the compression ring plate 501 is pushed upward, and the compression ring plate 501 is moved upward. The ring plate 501 squeezes the receiving member 502. When the squeezing force of the ring plate 501 on the receiving member 502 exceeds the bearing capacity of the pressure hole 701, the saline or conductive paste in the receiving member 502 will enter the pressure hole 701 from the receiving member 502 and be transmitted through the connecting tube 702. Finally, it will be sprayed out from the spray hole 703 and act on the electrode contact 3, so as to wet the end of the electrode contact 3 and avoid the impedance at the connection between the electrode contact 3 and the human body being too high, which would cause baseline drift during ECG monitoring.

[0075] Meanwhile, since the spray hole 703 and the end of the electrode contact 3 away from the mounting cylinder 4 are on the same horizontal plane, and the end of the electrode contact 3 away from the mounting cylinder 4 is provided with a rounded part, after the saline or conductive paste is sprayed out from the spray hole 703, under the guidance of the rounded part, a part of the saline or conductive paste will gradually move towards the end of the electrode contact 3, so that the saline or conductive paste can be distributed more comprehensively on the electrode contact 3, and another part will move towards the human body, so that the contact area between the electrode contact 3 and the human body is disinfected and moistened.

[0076] It should be noted that when the air intake device injects air into the second constraint member 602, the second constraint member 602 gradually enters the second working state. At this time, the squeezing and wetting component 5 is under pressure, and the bottom height of the electrode contact 3 is higher than the bottom height of the first constraint member 601.

[0077] After the humidification process of electrode contact 3 is completed, the electrode contact 3 is extended. Specifically, the control system controls the air intake device to extract the air inside the annular support 6021 through the inner connecting pipe 6023, thereby controlling the annular support 6021 to gradually contract. During the contraction of the annular support 6021, under the influence of the elastic restoring force of the elastic element 503, the squeeze ring plate 501 gradually moves down until the value of the pressure sensor returns to the initial value.

[0078] Meanwhile, since the upper and lower ends of the annular support 6021 are fixedly connected to the inner top and inner bottom of the annular telescopic part 6011 respectively, the annular telescopic part 6011 will be synchronously driven to contract during the contraction of the annular support 6021. This causes the bottom height of the electrode contact 3 to be lower than the bottom height of the annular telescopic part 6011, thereby causing the electrode contact 3 to form a squeezing contact with the human body. At the same time, due to the contraction of the annular telescopic part 6011, the contact area between the annular telescopic part 6011 and the human body is increased, improving the sealing performance of the inner ring of the annular telescopic part 6011.

[0079] It should be noted that the suction volume of the air intake device on the annular support 6021 is a fixed value, thereby ensuring that when the second constraint 602 is in the third working state, the squeezing and wetting component 5 is in an unpressurized state, the bottom height of the electrode contact 3 is lower than the bottom height of the first constraint 601, and at the same time, ensuring that the annular support 6021 still has sufficient resistance to the annular telescopic part 6011, ensuring that the bottom of the annular telescopic part 6011 is still in a state of squeezing contact with the human body.

[0080] After the electrode contact 3 extends out, the electrode contact 3 is fixed. Specifically, the control system controls the air supply device to extract the air from the inside of the annular telescopic part 6011 through the external connecting pipe 6013. Since the inner ring of the annular telescopic part 6011 has an air hole 6012, and the bottom of the annular telescopic part 6011 is still in a state of compression contact with the human body, that is, the bottom of the annular telescopic part 6011 is in a close fit with the human body, the inner ring of the annular telescopic part 6011 is a sealed space. Thus, when the air supply device performs the suction operation, the gas in the inner ring of the annular telescopic part 6011 can be extracted, so that the inner ring of the annular telescopic part 6011 generates negative pressure, making the connection between the annular telescopic part 6011 and the human body tighter, and preventing the electrode contact 3 from becoming loose or shifting, which would reduce the contact area between the electrode and the skin.

[0081] After the electrode contact 3 is fixed, the detector body 1 detects the electrocardiogram signal through the electrode contact 3.

[0082] By cleverly setting the first constraint member 601 and the second constraint member 602, the present invention systematically performs a series of preprocessing steps before the ECG signal detection process is started, including heating, humidifying, extending and fixing the electrode contact 3, so as to ensure that the electrode contact 3 can effectively and stably contact the human body, thereby minimizing external interference.

[0083] Specifically, when the detector body 1 is put into use, the end of the electrode contact 3 is first heated by the gas supply device in conjunction with the first constraint member 601, while the second constraint member 602 remains in its original state. After the heating process is completed, the user adjusts to a suitable testing position, and then the humidification process begins. During this process, the first constraint member 601 is adjusted to a normal state, while the second constraint member 602 enters an elongated state. Through physical compression, the saline solution or conductive paste in the container 502 is sprayed out through the connecting component 7, thereby moistening the end of the electrode contact 3.

[0084] After the humidification process is completed, the testing process enters the extension stage. At this time, the first constraint 601 remains in its normal state, while the second constraint 602 retracts, allowing the electrode contact 3 to extend smoothly from its interior. After the extension stage, the crucial fixing stage begins. In this stage, the control system maintains the first constraint 601 in the state it was in during the extension stage and simultaneously activates the air supply device to extract air from the inner ring of the first constraint 601, thereby creating a negative pressure effect within the inner ring of the first constraint 601. This negative pressure effect ensures a tighter fit between the annular telescopic part 6011 and the human skin, effectively preventing the electrode contact 3 from loosening or shifting during the testing process, thus ensuring the accuracy and stability of the electrocardiogram signal acquisition.

[0085] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A portable electrocardiogram (ECG) signal detection device, characterized in that: The electrocardiogram signal detection device includes a detector body and a sliding flip assembly. The bottom surface of the sliding flip assembly and the detector body is provided with multiple electrode contacts, and the distribution of the electrode contacts corresponds to the position of the medical chest lead electrodes. The outer side of each electrode contact is provided with a mounting cylinder, a telescopic component is provided below the mounting cylinder, a squeezing and wetting component is provided above the telescopic component and located inside the mounting cylinder, and a communication component is provided between the squeezing and wetting component and the telescopic component. The telescopic component includes a first constraint member, and a second constraint member is disposed inside the first constraint member. When the first constraint member comes into contact with and is squeezed by a human body, the second constraint member extends, and the squeezing and wetting component humidifies the electrode contacts through the connecting component.

2. The portable electrocardiogram signal detection device according to claim 1, characterized in that: When the second constraint is in the extended state, the end of the electrode contact away from the mounting cylinder is located inside the second constraint; When the second constraint is in the retracted state, the end of the electrode contact away from the mounting cylinder is located on the outside of the second constraint.

3. The portable electrocardiogram signal detection device according to claim 1, characterized in that: The extrusion wetting assembly includes an extrusion ring plate disposed inside the mounting cylinder. The side of the extrusion ring plate facing the top of the mounting cylinder has a receiving member. An elastic member is disposed on the outside of the receiving member. One end of the elastic member is connected to the mounting cylinder, and the other end of the elastic member is connected to the extrusion ring plate.

4. The portable electrocardiogram signal detection device according to claim 1, characterized in that: The first constraint member includes an annular telescopic portion disposed on the side of the extrusion ring plate away from the receiving member. The inner side of the annular telescopic portion is provided with an array of air holes, and the outer side of the annular telescopic portion is provided with an external connecting pipe. The other end of the external connecting pipe is connected to an air supply device.

5. The portable electrocardiogram signal detection device according to claim 4, characterized in that: The vent hole and the end of the electrode contact away from the mounting cylinder are on the same horizontal plane; A temperature sensor is installed at the end of the electrode contact near the mounting cylinder.

6. The portable electrocardiogram signal detection device according to claim 3, characterized in that: The second constraint member includes an annular support portion disposed within the annular telescopic portion, the annular support portion dividing the annular telescopic portion into inner and outer regions; The annular support is provided with an inner connecting pipe, and the other end of the inner connecting pipe is connected to the air intake device. The annular support is provided with arrayed connecting parts that connect the inner and outer regions.

7. The portable electrocardiogram signal detection device according to claim 3, characterized in that: The communication component includes a connecting pipe disposed inside the annular telescopic part, one end of which is connected to a spray hole opened on the inner side of the annular telescopic part; The other end of the connecting pipe is connected to a pressure hole provided on the receiving element.

8. The portable electrocardiogram signal detection device according to claim 7, characterized in that: The injection hole and the end of the electrode contact away from the mounting cylinder are on the same horizontal plane; the end of the electrode contact away from the mounting cylinder is provided with a rounded portion.

9. The portable electrocardiogram signal detection device according to claim 1, characterized in that: The upper surface of the detector body is provided with symmetrically distributed electrode plates, which are located around the periphery of the detector body.

10. The portable electrocardiogram signal detection device according to claim 1, characterized in that: The sliding and flipping assembly includes a limiting groove formed on the detector body, a limiting slider is provided inside the limiting groove, and a flipping support arm is rotatably connected to the end of the limiting slider.

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