Electrocardio and phonocardiogram synchronous collector and electrocardio and phonocardiogram detection system

Abstract

The present application relates to the technical field of medical devices, and provides a heart sound and electrocardiogram synchronous collector and a heart sound and electrocardiogram detection system. The present application provides a heart sound and electrocardiogram synchronous collector, which comprises a conductive adsorption unit and a collection unit. The conductive adsorption unit can be adsorbed on the human skin. The collection unit is connected to the conductive adsorption unit, can collect a heart sound signal, and can collect an electrocardiogram signal through the conductive adsorption unit. The present application provides a heart sound and electrocardiogram synchronous collector and a heart sound and electrocardiogram detection system, which can solve the technical problem of low efficiency of synchronous collection of an electrocardiogram signal and a heart sound signal in the prior art.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an electrocardiogram and heart sound synchronous acquisition device and an electrocardiogram and heart sound detection system. Background Technology

[0002] Electrocardiography (ECG) and phonocardiography (PCG) are two routine methods for detecting cardiovascular diseases. ECG testing typically uses limb electrode clips and suction bulb electrodes. The suction bulb electrodes are fixed to the chest using negative pressure to collect ECG signals. Phonocardiography, on the other hand, usually involves a doctor manually pressing on specific locations on the chest with a stethoscope to collect heart sound signals. Simultaneous acquisition of ECG and heart sound signals provides complementary information, revealing key cardiovascular parameters that cannot be obtained from a single signal, and has significant clinical value.

[0003] In existing technologies, when it is necessary to simultaneously acquire electrocardiogram (ECG) and heart sound signals, the suction electrode must first be attached to the chest to acquire the ECG signal, and then the heart sound sensor must be manually pressed against a specific position on the chest to acquire the heart sound signal. This affects the acquisition efficiency. Summary of the Invention

[0004] This invention provides an electrocardiogram and heart sound synchronous acquisition device and an electrocardiogram and heart sound detection system to solve the technical problem of low efficiency in synchronous acquisition of electrocardiogram and heart sound signals in the prior art.

[0005] To solve the above-mentioned technical problems, the present invention provides an electrocardiogram and heart sound synchronous acquisition device, which includes a conductive adsorption unit and an acquisition unit;

[0006] The conductive adsorption unit can be adsorbed onto human skin to collect electrocardiogram signals;

[0007] The acquisition unit is connected to the conductive adsorption unit and can acquire heart sound signals, and can also acquire electrocardiogram signals through the conductive adsorption unit.

[0008] The electrocardiogram and heart sound synchronous acquisition device, wherein the conductive adsorption unit includes a signal acquisition component, a hollow suction bulb, and a connecting tube;

[0009] The signal acquisition component includes a hollow outer shell forming an inner cavity. The outer shell has an adsorption port and a communication port, which can communicate with the inner cavity.

[0010] The hollow suction bulb has a negative pressure chamber and an air intake that can connect to the negative pressure chamber;

[0011] One end of the connecting tube is located at the connecting port, and the other end of the connecting tube is located at the air intake port.

[0012] The aforementioned ECG and heart sound synchronous acquisition device, wherein the signal acquisition component has an adsorption end and a connection end arranged opposite to each other;

[0013] The adsorption port is located at the adsorption end;

[0014] The diameter of the inner cavity is gradually reduced from the adsorption end to the connection end.

[0015] The aforementioned ECG and heart sound synchronous acquisition device, wherein the connection end has a first setting port;

[0016] The connection port is located on the side wall of the signal acquisition component.

[0017] The aforementioned electrocardiogram and heart sound synchronous acquisition device, wherein the side wall of the connecting tube has an insertion port;

[0018] The acquisition unit can be slidably connected to the edge of the insertion port and sealed with the air intake port;

[0019] When the adsorption end is adsorbed onto the human skin, the collection unit can extend into the connecting tube to separate the inner cavity from the negative pressure cavity.

[0020] The electrocardiogram and heart sound synchronous acquisition device is provided with a partition in the inner cavity. The partition can divide the inner cavity into an adsorption cavity and a resonant cavity. The partition is used to form a soundproof space after the air in the adsorption cavity is extracted.

[0021] In the aforementioned electrocardiogram and heart sound synchronous acquisition device, the adsorption cavity is arranged around the resonant cavity; the resonant cavity is used to transmit the human heart sound signal to the acquisition unit.

[0022] The partition has a first end and a second end arranged sequentially along the direction from the adsorption end to the connection end;

[0023] The second end has a second setting port;

[0024] The collection unit is disposed inside the adsorption chamber. One end of the collection unit is sealed and passes through the second setting port, and the other end of the collection unit is located inside the communication port, with a gap between it and the edge of the communication port for air to flow through.

[0025] The electrocardiogram and heart sound synchronous acquisition device includes a first connecting tube connected to a negative pressure chamber and a second connecting tube connected to an adsorption chamber, wherein the first connecting tube and the second connecting tube are connected to form a connecting tube.

[0026] The aforementioned ECG and heart sound synchronous acquisition device, wherein the heart sound sensor module of the acquisition unit is built into the adsorption cavity, or into the resonant cavity, or simultaneously into both the adsorption cavity and the resonant cavity.

[0027] The electrocardiogram and heart sound synchronous acquisition device has an opening at the first end, and the opening is provided with a tympanic membrane. When the adsorption end is attached to the human skin, the tympanic membrane is in contact with the human skin.

[0028] In the aforementioned ECG and heart sound synchronous acquisition device, the diameter of the resonant cavity is gradually reduced along the direction from the adsorption end to the connection end.

[0029] In the aforementioned ECG and heart sound synchronization acquisition device, the material of the part of the outer shell that contacts the skin is a conductive metal, including copper, nickel-plated brass, nickel-plated plastic, and conductive alloys.

[0030] In the aforementioned ECG and heart sound synchronous acquisition device, the second wiring harness of the acquisition unit extends out through the outer casing. The second wiring harness includes four wires: a power wire, a ground wire, an ECG wire, and a heart sound wire.

[0031] An electrocardiogram (ECG) and heart sound detection system, comprising the ECG and heart sound synchronous acquisition device of claims 1-13, wherein the system includes:

[0032] Electrocardiograph (ECG) machine;

[0033] The ECG and heart sound synchronous acquisition device is connected to the ECG machine via a second wiring harness.

[0034] This invention relates to a simultaneous ECG and heart sound acquisition device. By integrating a conductive adsorption unit and an acquisition unit, it achieves simultaneous acquisition of ECG and heart sound signals. This design overcomes the cumbersome and inefficient nature of traditional methods that require separate acquisition of ECG and heart sound signals. The conductive adsorption unit not only stably adheres to the skin to ensure continuous ECG signal acquisition but also acts as a bridge, allowing the acquisition unit on the same device to simultaneously acquire heart sound signals without the need for manual positioning and continuous pressure, significantly improving the convenience and efficiency of simultaneous acquisition. This simultaneous acquisition method simplifies medical testing procedures and reduces operation time. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0036] Figure 1This is a front view of one embodiment of the ECG and heart sound synchronization acquisition device of the present invention;

[0037] Figure 2 yes Figure 1 Sectional view in;

[0038] Figure 3 This is a front view of another embodiment of the ECG and heart sound synchronization acquisition device of the present invention;

[0039] Figure 4 yes Figure 3 Sectional view in;

[0040] Figure 5 This is a front view of another embodiment of the ECG and heart sound synchronization acquisition device of the present invention;

[0041] Figure 6 yes Figure 5 Sectional view in;

[0042] Figure 7 This is a front view of another embodiment of the ECG and heart sound synchronization acquisition device of the present invention.

[0043] Figure label:

[0044] 100. Conductive adsorption unit; 110. Signal acquisition component; 111. Inner cavity; 1101. Adsorption cavity; 1102. Resonant cavity; 112. Adsorption port; 113. Connecting port; 114. Adsorption end; 115. Connecting end; 1151. First setting port; 116. Separator; 1161. First end; 1162. Second end; 1163. Dysfunction membrane; 117. Gap; 118. Outer shell; 120. Hollow suction ball; 121. Negative pressure cavity; 122. Inhalation port; 130. Connecting tube; 134. Insertion port; 131. First connecting tube; 132. Second connecting tube; 133. Third connecting tube; 140. Leading part; 200. Acquisition unit; 300. Second wire harness. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0046] In the description of this embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this embodiment and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this embodiment.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this embodiment, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In this embodiment, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0049] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0050] Figures 1 to 7The present invention provides an electrocardiogram and heart sound synchronous acquisition device. As can be seen from the figure, the present invention provides an electrocardiogram and heart sound synchronous acquisition device, including a conductive adsorption unit 100 and an acquisition unit 200. The conductive adsorption unit 100 can be adsorbed onto human skin. The acquisition unit 200 is connected to the conductive adsorption unit 100 and can acquire heart sound signals. In addition, the electrocardiogram signal can be acquired through the conductive adsorption unit 100.

[0051] The ECG and heart sound synchronous acquisition device of the present invention achieves simultaneous acquisition of ECG and heart sound signals through the integrated design of a conductive adsorption unit 100 and an acquisition unit 200. This design overcomes the problems of cumbersome operation and low efficiency caused by the need for separate acquisition of ECG and heart sound signals in traditional methods. The conductive adsorption unit 100 not only stably adheres to human skin to ensure continuous acquisition of ECG signals, but also acts as a bridge, allowing the acquisition unit 200 on the same device to acquire heart sound signals simultaneously, without the need for additional manual positioning and continuous pressing, greatly improving the convenience and efficiency of synchronous acquisition. This synchronous acquisition method simplifies the medical testing process and reduces operation time.

[0052] In this embodiment, the acquisition unit 200 can be an acquisition plate, on which a heart sound sensor module is provided for detecting heart sound signals; the conductive adsorption unit 100 can be a structural component made of conductive metal material, and the acquisition plate can be electrically connected to the conductive adsorption unit 100. The conductive adsorption unit 100 can contact the skin to transmit electrocardiogram signals to the acquisition plate.

[0053] According to one embodiment of the present invention, the conductive adsorption unit 100 includes a signal acquisition component 110, a hollow suction ball 120, and a connecting tube 130; the signal acquisition component 110 has an inner cavity 111, an adsorption port 112, and a connecting port 113, the adsorption port 112 and the connecting port 113 being able to communicate with the inner cavity 111; the hollow suction ball 120 has a negative pressure chamber 121 and an air intake port 122 being able to communicate with the negative pressure chamber 121; one end of the connecting tube 130 is disposed at the connecting port 113, and the other end of the connecting tube 130 is disposed at the air intake port 122.

[0054] In practical implementation, the signal acquisition component 110 not only carries out conductive functions, but its internal cavity 111 structure and connecting port 113 are also cleverly connected to the negative pressure chamber 121 and suction port 122 of the hollow suction bulb 120, allowing the suction port 112 to adhere to the skin. For example, during acquisition, the hollow suction bulb 120 can be pressed first, and then the suction port 112 can be placed against the skin to maintain good contact between the edge of the suction port 112 and the skin, enhancing the acquisition quality of ECG signals. Thus, this structural design not only enhances the stability and comfort of the device, but also effectively avoids signal interference problems caused by movement or unstable pressing in traditional methods through a sophisticated combination of physical mechanisms. This ensures high efficiency and high quality of simultaneous acquisition of ECG and heart sound signals, further improving the reliability of clinical testing and the patient experience.

[0055] In one feasible implementation, such as Figure 1 and Figure 2 As shown, the signal acquisition component 110 has an adsorption end 114 and a connection end 115 that are arranged opposite to each other; the adsorption port 112 is provided at the adsorption end 114; the diameter of the inner cavity 111 is gradually reduced along the direction from the adsorption end 114 to the connection end 115.

[0056] In this embodiment, the connection end 115 has a first setting port 1151; the acquisition unit 200 is covered by the first setting port 1151; and the communication port 113 is located on the side wall of the signal acquisition component 110.

[0057] In another feasible implementation, such as Figure 3 and Figure 4 As shown, the side wall of the connecting tube 130 has an insertion port 134; the collection unit 200 can be slidably connected to the edge of the insertion port 134 and sealed with the air inlet 122; wherein, when the adsorption end 114 is adsorbed on the human skin, the collection unit 200 can extend into the connecting tube 130 to separate the inner cavity 111 and the negative pressure cavity 121.

[0058] In practice, since the internal channel of the connecting tube 130 and the negative pressure chamber 121 of the hollow suction bulb 120 may affect the acquisition of heart sound signals, the acquisition unit 200 is located outside the connecting tube 130 under normal conditions, and when acquisition is required, the hollow suction bulb 120 can be squeezed to compress it. Then, the suction end 114 is placed against the human skin, and the hollow suction bulb 120 is released. At this time, the hollow suction bulb 120 will generate negative pressure, and the suction end 114 is like a suction cup. Under the action of negative pressure, it can be attached to the human skin. After confirming that it is attached to the human skin, the acquisition unit 200 can be pushed by hand to extend into the connecting tube 130, separating the inner cavity 111 and the negative pressure chamber 121.

[0059] In another feasible implementation, such as Figure 5 and Figure 6 As shown, the inner cavity 111 is provided with a partition 116. For example, the partition 116 can be disposed in the inner cavity 111 by a connector. The partition 116 can divide the inner cavity 111 into an adsorption cavity 1101 and a resonant cavity 1102. The adsorption cavity 1101 is disposed around the resonant cavity 1102. The resonant cavity 1102 is used to transmit the human heart sound signal to the acquisition unit 200. The partition 116 has a first end 1161 and a second end 1162 arranged sequentially along the direction from the adsorption end 114 to the connection end 115. The first end 1161 can abut against the skin. The second end 1162 has a second setting port. The acquisition unit 200 is disposed in the adsorption cavity 1101. One end of the acquisition unit 200 is sealed and passes through the second setting port. The other end of the acquisition unit 200 is located in the communication port 113 and has a gap 117 between it and the edge of the communication port 113 for air to flow through.

[0060] In practical implementation, by adding a partition 116 to the inner cavity 111, the inner cavity 111 is cleverly divided into an adsorption cavity 1101 and a resonant cavity 1102. The layout of the adsorption cavity 1101 surrounding the resonant cavity 1102 ensures good adsorption of the adsorption bulb to the skin and provides a dedicated transmission path for the heart sound signal. The resonant cavity 1102 focuses on collecting and transmitting the heart sound signal to the acquisition unit 200. Through precise acoustic design, the clarity and signal-to-noise ratio of the heart sound signal can be effectively improved, making the analysis more accurate. The design of both ends of the partition 116, especially the second setting port of the second end 1162, allows a part of the acquisition unit 200 to pass through and extend to the vicinity of the connecting port 113, forming a small gap 117 for air circulation. This ingenious arrangement not only ensures the effective transmission of the heart sound signal but also guarantees the realization of the adsorption function. At the same time, this structure creates a relatively independent and optimized environment for the acquisition of heart sound signals, reduces the risk of cross-interference, improves the overall signal quality and the reliability of analysis, and further consolidates the superior performance of this synchronous acquisition device in clinical testing and long-term monitoring.

[0061] According to one embodiment of the present invention, the first end 1161 has an opening, and the opening is provided with a tympanic membrane 1163. When the adsorption end 114 is adsorbed on the human skin, the tympanic membrane 1163 is in contact with the human skin.

[0062] In practice, when the adsorption end 114 is adsorbed onto human skin, the tympanic membrane 1163 fits tightly against the skin, simulating the principle of a stethoscope. The vibration of the tympanic membrane 1163 efficiently receives heart sound signals, further improving the sensitivity and accuracy of heart sound signal acquisition.

[0063] In this embodiment, the diameter of the resonant cavity 1102 is gradually reduced along the direction from the adsorption end 114 to the connection end 115.

[0064] According to one embodiment of the present invention, the conductive adsorption unit 100 is provided with a lead portion 140, which can be connected to an electrocardiograph via a first wire harness.

[0065] In practice, when only electrocardiogram (ECG) signals need to be collected, it is not necessary to connect the acquisition unit 200 to the electrocardiograph. The electrocardiograph and the conductive adsorption unit 100 can be connected through the first wiring harness.

[0066] The present invention provides a synchronized ECG and heart sound acquisition device, such as... Figure 7 As shown, the device includes a conductive adsorption unit 100 and a collection unit 200. The conductive adsorption unit 100 includes a signal acquisition component 110, a hollow suction bulb 120, and a connecting tube 130. The signal acquisition component 110 is used to collect electrocardiogram (ECG) signals and includes a hollow outer shell 118. The outer shell 118 is made of conductive metals such as copper, nickel-plated brass, nickel-plated plastic, or conductive alloys, and is used to collect ECG signals from the skin surface. Preferably, the part of the outer shell 118 that contacts the skin is made of conductive metals such as copper, nickel-plated brass, nickel-plated plastic, or conductive alloys. The thickness of the conductive metal in the part of the outer shell 118 that contacts the skin is not limited. Preferably, the part of the outer shell 118 that does not contact the skin can be made of other lightweight materials, such as plastic, and this invention does not impose any restrictions. The conductive metal on the outer shell 118 that contacts the skin transmits the collected ECG signals to the collection unit 200 through electrical connection terminals or electrical connection wires.

[0067] The hollow outer shell 118 forms an inner cavity 111; the outer shell has an adsorption port and a communication port, which can communicate with the inner cavity.

[0068] A partition 116 is provided within the space formed by the inner cavity 111. The partition 116 sets the space at the center of the inner cavity as a resonant cavity 1102, and the space between the partition 116 and the outer shell 118 is an adsorption cavity 1101. Preferably, the resonant cavity 1102 and the adsorption cavity 1101 are arranged side by side. Preferably, the partition 116 is shaped like a trumpet, and the resonant cavity formed inside the trumpet-shaped partition 116 and the space between the outside of the trumpet-shaped partition 116 and the outer shell constitute the adsorption cavity 1101. The inner diameter of the partition 116 gradually decreases from the end that contacts the skin to the end adjacent to the collection unit 200.

[0069] The present invention is as follows Figure 7In the preferred embodiment shown, one end of the connecting pipe 130 is connected to the negative pressure chamber 121 of the hollow suction ball 120, and the other end is connected to the adsorption chamber 1101 of the inner cavity 111. Preferably, the connecting pipe 130 may include a vertical first connecting pipe 131 connected to the negative pressure chamber 121, a vertical third connecting pipe 133 connected to the adsorption chamber 1101, and a second connecting pipe 132 connecting the vertical first connecting pipe 131 and the vertical third connecting pipe 133. The shape and connection method of the connecting pipe 130 are not limited in this invention.

[0070] The heart sound sensor module is easily affected by external noise. The separation part 116 of the present invention is set so that the air in the adsorption cavity 1101 is extracted to form a soundproof space. The heart sound sensor module mainly receives the sound transmitted from the body surface in the resonant cavity 1102 and obtains the heart sound signal.

[0071] The heart sound sensor module of the acquisition unit 200 of the present invention is embedded in the adsorption cavity 1101, or in the resonant cavity 1102, or simultaneously in both the adsorption cavity 1101 and the resonant cavity 1102, for acquiring heart sound signals. The acquisition unit includes a heart sound sensor module and an electrocardiogram (ECG) sensor module, or a heart sound and ECG sensor module. The second wiring harness 300 of the acquisition unit 200 extends through the outer casing 118. Preferably, the second wiring harness 300 may include four wires: a power wire, a ground wire, an ECG wire, and a heart sound wire.

[0072] The present invention also provides an electrocardiogram and heart sound detection system, comprising: an electrocardiograph; and an electrocardiogram and heart sound synchronous acquisition unit (acquisition unit 200) connected to the electrocardiograph via a second wiring harness 300.

[0073] In practice, the specific structure, working principle, and beneficial effects of the ECG and heart sound synchronization acquisition device are the same as those in the above implementation method, and will not be repeated here.

[0074] In this embodiment, the second wiring harness 300 may consist of four wires, which may be a power wire, a ground wire, a heart wire, and a heart sound wire.

[0075] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "method," "specific method," or "some methods," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or method is included in at least one embodiment or method of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or method. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or methods. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or methods described in this specification, as well as the features of different embodiments or methods.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A synchronized electrocardiogram and heart sound acquisition device, characterized in that, Includes a conductive adsorption unit and a collection unit; The conductive adsorption unit can be adsorbed onto human skin to collect electrocardiogram signals; The acquisition unit is connected to the conductive adsorption unit and can acquire heart sound signals, and can also acquire electrocardiogram signals through the conductive adsorption unit; The conductive adsorption unit includes a signal acquisition component, a hollow suction bulb, and a connecting tube. The signal acquisition component includes a hollow outer shell forming an inner cavity. A partition is provided within the inner cavity, dividing it into an adsorption cavity and a resonant cavity. The partition allows air to be extracted from the adsorption cavity, creating a soundproof space. The resonant cavity transmits the human heart sound signal to the acquisition unit. The outer shell has an adsorption port and a connecting port, which connect to the inner cavity. The collection unit is built into the adsorption cavity, with one end of the collection unit located inside the communication port and having a gap between it and the edge of the communication port for air to flow through.

2. The ECG and heart sound synchronization acquisition device according to claim 1, characterized in that, The hollow suction bulb has a negative pressure chamber and an air intake that can connect to the negative pressure chamber; One end of the connecting tube is located at the connecting port, and the other end of the connecting tube is located at the air intake port.

3. The ECG and heart sound synchronization acquisition device according to claim 2, characterized in that, The signal acquisition component has an adsorption end and a connection end that are positioned opposite to each other; The adsorption port is located at the adsorption end; The diameter of the inner cavity is gradually reduced from the adsorption end to the connection end.

4. The ECG and heart sound synchronization acquisition device according to claim 3, characterized in that, The connection end has a first setting port; The connection port is located on the side wall of the signal acquisition component.

5. The ECG and heart sound synchronization acquisition device according to claim 3, characterized in that, The side wall of the connecting tube has an insertion port; The acquisition unit can be slidably connected to the edge of the insertion port and sealed with the air intake port; When the adsorption end is adsorbed onto the human skin, the collection unit can extend into the connecting tube to separate the inner cavity from the negative pressure cavity.

6. The ECG and heart sound synchronization acquisition device according to claim 1, characterized in that, The adsorption cavity is arranged around the resonant cavity; the partition has a first end and a second end arranged sequentially along the direction from the adsorption end to the connection end; The second end has a second setting port; One end of the acquisition unit is sealed and inserted through the second setting port, and the other end of the acquisition unit is located inside the communication port, with a gap between it and the edge of the communication port for air to flow through.

7. The ECG and heart sound synchronization acquisition device according to claim 6, characterized in that, The first end has an opening, and the opening is provided with a tympanic membrane. When the adsorption end is adsorbed onto human skin, the tympanic membrane is in contact with human skin.

8. The ECG and heart sound synchronization acquisition device according to claim 1, characterized in that, The connecting pipe includes a first connecting pipe connected to the negative pressure chamber and a second connecting pipe connected to the adsorption chamber, and the first connecting pipe and the second connecting pipe are connected to form a connecting pipe.

9. The ECG and heart sound synchronous acquisition device according to claim 1, characterized in that, The heart sound sensor module of the acquisition unit is embedded in the adsorption cavity, or in the resonant cavity, or both.

10. The ECG and heart sound synchronization acquisition device according to claim 1, characterized in that, The diameter of the resonant cavity is gradually reduced from the adsorption end to the connection end.

11. The ECG and heart sound synchronization acquisition device according to claim 1, characterized in that, The material of the part of the outer shell that comes into contact with the skin is a conductive metal, including copper, nickel-plated brass, nickel-plated plastic, and conductive alloys.

12. The ECG and heart sound synchronous acquisition device according to any one of claims 1 to 11, characterized in that, The second wiring harness of the acquisition unit extends out through the outer casing. The second wiring harness includes four wires: a power wire, a ground wire, a cardiac wire, and a cardiac sound wire.

13. A cardiac sound detection system, characterized in that, include: Electrocardiograph (ECG) machine; The ECG and heart sound synchronous acquisition device as described in any one of claims 1-12 is connected to the ECG machine via a second wiring harness.

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