A device for detecting electrocardiogram and phonocardiogram

Abstract

The application provides a heart sound and electrocardiogram detection device, which comprises a shell, at least one heart sound collection probe and a plurality of electrocardiogram collection probes; the upper part of the shell is provided with a sealed cavity, the lower side of the sealed cavity is connected with a plurality of downwardly extending piston cavities, the two ends of the piston cavities are respectively communicated with the sealed cavity and the bottom of the shell, and each piston cavity is respectively matched with a piston; the heart sound collection probe is fixed to the lower side of the piston and passes out from the lower end of the corresponding piston cavity; each electrocardiogram collection probe is fixed to the lower side of each of the remaining pistons one by one and passes out from the lower end of the corresponding piston cavity. The application can ensure that each probe is in close contact with the human body, thereby ensuring the accuracy of heart sound and electrocardiogram detection.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an electrocardiogram and heart sound detection device. Background Technology

[0002] During the cardiac cycle, mechanical vibrations caused by factors such as myocardial contraction, valve opening and closing, blood acceleration and deceleration exerting pressure and decompression on the cardiovascular walls, and the resulting eddies, can be transmitted to the chest wall through surrounding tissues. If a stethoscope is placed on certain parts of the chest wall, sounds can be heard, called heart sounds. If these mechanical vibrations are converted into electrical signals and recorded using a transducer, a phonocardiogram is obtained.

[0003] During each cardiac cycle, the heart is successively excited by the pacemaker, atria, and ventricles, accompanied by changes in bioelectricity. These changes are captured by an electrocardiogram (ECG) from the body surface, showing various forms of electrical potential changes. An ECG is an objective indicator of the occurrence, propagation, and recovery of cardiac excitation. It is the earliest, most commonly used, and most fundamental diagnostic method for coronary heart disease.

[0004] Simultaneous detection of phonocardiography and electrocardiography helps to determine the timing and nature of a patient's heart sounds or murmurs, thus enabling a more comprehensive diagnosis and differentiation. It can be used for early screening of clinical diseases such as coronary heart disease, heart failure, and valvular heart disease.

[0005] Chinese invention patent CN115581463A discloses a handheld electrocardiogram (ECG) and heart sound synchronization sensor device, including a housing with acquisition probes mounted on it. One of the acquisition probes is a heart sound acquisition probe, and the other probes are an ECG acquisition probe and a grounded ECG acquisition probe. This patent integrates the ECG and heart sound acquisition probes onto a single housing. Users only need to place the acquisition probes within the target area of ​​the body to acquire ECG, heart sound, or lung sound signals. The acquired ECG, heart sound, and lung sound signals are processed by a signal processing circuit and can be easily transmitted to a hospital or the patient's smart device for immediate viewing, providing convenience for users.

[0006] However, due to the uneven surface of the human chest, it is difficult to ensure that each probe is in perfect contact with the body when the device is attached to the chest for ECG and heart sound detection, which will affect the accuracy of the detection. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides an electrocardiogram and heart sound detection device that ensures each probe fits snugly against the human body, thereby ensuring the accuracy of electrocardiogram and heart sound detection.

[0008] This invention provides an electrocardiogram and heart sound detection device, comprising:

[0009] The housing has a sealed cavity at its upper part, and a plurality of downwardly extending piston cavities are connected to the lower side of the sealed cavity. The two ends of the piston cavities are respectively connected to the bottom of the sealed cavity and the housing, and each piston cavity is fitted with a piston.

[0010] At least one heart sound acquisition probe, the heart sound acquisition probe being fixed to the lower side of a piston and extending out from the lower end of the corresponding piston cavity;

[0011] Multiple ECG acquisition probes are provided, each of which is fixed to the lower side of the remaining pistons and extends out from the lower end of the corresponding piston cavity.

[0012] Furthermore, each piston cavity has a limiting ring on its inner side at the lower end, and each heart sound acquisition probe and electrocardiogram acquisition probe passes through the corresponding limiting ring.

[0013] Furthermore, the housing consists of an upper housing and a lower housing, the sealing cavity is located inside the upper housing, the bottom of the sealing cavity is provided with multiple connecting sleeves, each piston cavity is inserted into each of the connecting sleeves in a corresponding manner, and a sealing ring is provided between each piston cavity and the connecting sleeve.

[0014] Furthermore, the upper housing and the lower housing are fixed together by screws.

[0015] Furthermore, the housing is provided with an inflation / deflation port that communicates with the sealed cavity, and an adjustment valve is provided inside the inflation / deflation port.

[0016] Furthermore, the upper side of the housing is connected to a tapered connecting part that gradually narrows at the top. A handle is connected to the upper end of the tapered connecting part. The wires of each of the heart sound acquisition probes and electrocardiogram acquisition probes pass through the corresponding pistons, then pass through the sealed cavity, the tapered connecting part and the handle in sequence, and finally emerge from the tail end of the handle.

[0017] Furthermore, the heart sound acquisition probe includes an outer sleeve, a diaphragm, a soundproof cover, and a microphone;

[0018] The upper end of the outer sleeve is threaded onto the connector at the lower end of the corresponding piston, and the lower end of the outer sleeve is provided with an inner convex ring.

[0019] The diaphragm is disposed inside the outer sleeve and located on the upper side of the inner convex ring;

[0020] The soundproof cover is located inside the outer sleeve. The lower end of the soundproof cover has an opening and the edge of the diaphragm is pressed against the inner convex ring. The upper end of the soundproof cover is pressed against the lower side of the connector. An annular soundproof cavity is formed between the soundproof cover and the outer sleeve.

[0021] The microphone is located inside the soundproof enclosure.

[0022] Furthermore, the outer edge of the lower end of the soundproof cover is provided with a positioning ring that fits inside the outer sleeve.

[0023] Furthermore, the connector at the lower end of the piston connected to the heart sound acquisition probe is provided with a sound-insulating block that abuts against the upper end of the soundproof cover.

[0024] Furthermore, the ECG acquisition probe includes a probe body, an electrode plate at the lower end of the probe body, and a threaded sleeve at the upper end of the probe body. Each threaded sleeve is threadedly connected to the connector at the lower end of the corresponding piston.

[0025] The beneficial effects of this invention are as follows: By setting at least one heart sound acquisition probe and multiple electrocardiogram (ECG) acquisition probes, heart sound and ECG detection can be performed simultaneously using the heart sound acquisition probe and the ECG acquisition probe respectively. During detection, the bottom of the detection device is placed at the position corresponding to the chest of the human body. Since the upper end of the piston cavity where each heart sound acquisition probe / ECG acquisition probe is installed is connected through a sealed cavity, the protruding part at the chest will squeeze the heart sound acquisition probe / ECG acquisition probe into the piston cavity, and the heart sound acquisition probe / ECG acquisition probe at the concave part at the chest will be squeezed out of the piston cavity, thereby ensuring that each probe fits in close contact with the human body, thus ensuring the accuracy of ECG and heart sound detection. At the same time, the pressure of each probe on the human body can be kept the same, and there will be no situation where the pressure of individual probes on the human body is too great. This can avoid the discomfort caused to the patient by excessive pressure on a local part of the human body. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0027] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0028] Figure 2 for Figure 1 Enlarged view of part A;

[0029] Figure 3 for Figure 1 Enlarged view of part B.

[0030] In the attached diagram, 100-housing; 110-sealed cavity; 111-connecting sleeve; 112-sealing ring; 120-piston cavity; 121-limiting ring; 130-piston; 131-connector; 132-sound insulation block; 140-upper housing; 150-lower housing; 160-screw; 170-inflation / expansion port; 171-regulating valve; 180-conical connecting part; 190-handle; 200-heart sound acquisition probe; 210-outer sleeve; 211-inner convex ring; 220-diaphragm; 230-sound insulation cover; 231-positioning ring; 240-microphone; 250-annular sound insulation cavity; 300-ECG acquisition probe; 310-probe body; 311-threaded sleeve; 320-electrode plate; 400-lead wire. Detailed Implementation

[0031] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0032] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by those skilled in the art.

[0033] like Figures 1-3 As shown, this embodiment of the invention provides an electrocardiogram and heart sound detection device, including a housing 100, at least one heart sound acquisition probe 200 and multiple electrocardiogram acquisition probes 300.

[0034] The upper part of the housing 100 is provided with a sealing cavity 110. Multiple downwardly extending piston cavities 120 are connected to the lower side of the sealing cavity 110. The two ends of the piston cavities 120 are respectively connected to the sealing cavity 110 and the bottom of the housing 100. Each piston cavity 120 is equipped with a piston 130.

[0035] The heart sound acquisition probe 200 is fixed to the lower side of a piston 130 and extends out from the lower end of the corresponding piston cavity 120;

[0036] Each ECG acquisition probe 300 is fixed to the lower side of the remaining pistons 130 and extends out from the lower end of the corresponding piston cavity 120.

[0037] This application, by setting at least one heart sound acquisition probe 200 and multiple electrocardiogram (ECG) acquisition probes 300, allows for simultaneous detection of heart sounds and ECGs using the heart sound acquisition probe 200 and ECG acquisition probes 300 respectively. During detection, the bottom of the detection device is placed at the corresponding position on the human chest. Since the upper end of the piston cavity 120 where each heart sound acquisition probe 200 / ECG acquisition probe 300 is installed is connected through a sealed cavity 110, the protruding part at the chest will squeeze the heart sound acquisition probe 200 / ECG acquisition probe 300 into the piston cavity 120, while the heart sound acquisition probe 200 / ECG acquisition probe 300 at the concave part of the chest will be squeezed out of the piston cavity 120. This ensures that each probe fits the human body, thereby ensuring the accuracy of ECG and heart sound detection. At the same time, the pressure of each probe on the human body can be kept the same, preventing individual probes from exerting excessive pressure on the human body. This avoids discomfort to the patient caused by excessive pressure on a localized area of ​​the human body.

[0038] To prevent the piston 130 from falling out of the piston cavity 120, a limiting ring 121 is provided on the inner side of the lower end of each piston cavity 120, and each heart sound acquisition probe 200 and electrocardiogram acquisition probe 300 passes through the corresponding limiting ring 121.

[0039] For ease of manufacturing and assembly, the housing 100 consists of an upper housing 140 and a lower housing 150, which are fixed together by screws 160. A sealing cavity 110 is located inside the upper housing 140. The bottom of the sealing cavity 110 is provided with multiple connecting sleeves 111. Each piston cavity 120 is inserted into each connecting sleeve 111 in a corresponding manner. A sealing ring 112 is provided between each piston cavity 120 and the connecting sleeve 111 to prevent air leakage between the piston cavity 120 and the connecting sleeve 111.

[0040] In this embodiment, the housing 100 is provided with an inflation / deflation port 170 communicating with the sealed cavity 110, and an adjustment valve 171 is provided inside the inflation / deflation port 170. When the adjustment valve 171 is open, the sealed cavity 110 can be inflated and deflated through the inflation / deflation port 170, thereby adjusting the length of each probe extending out of the bottom of the housing 100. After the adjustment is completed, the adjustment valve 171 can be closed.

[0041] In this embodiment, a tapered connecting part 180 with a gradually narrowing upper end is connected to the upper side of the housing 100. A handle 190 is connected to the upper end of the tapered connecting part 180. The wires 400 of each heart sound acquisition probe 200 and electrocardiogram acquisition probe 300 pass through the corresponding piston 130, and then pass through the sealed cavity 110, the tapered connecting part 180 and the handle 190 in sequence, and finally emerge from the tail end of the handle 190. This not only makes the arrangement of the wires 400 more regular, but also makes it easier to perform electrocardiogram and heart sound detection operations on the detection device by holding the handle 190.

[0042] In this embodiment, refer to Figure 2 The heart sound acquisition probe 200 includes an outer sleeve 210, a diaphragm 220, a soundproof cover 230, and a microphone 240. The upper end of the outer sleeve 210 is threaded onto the connector 131 at the lower end of the corresponding piston 130, and the lower end of the outer sleeve 210 is provided with an inner convex ring 211. The diaphragm 220 is located inside the outer sleeve 210 and is situated above the inner convex ring 211. The soundproof cover 230 is located inside the outer sleeve 210, and the lower end of the soundproof cover 230 is provided with an opening that presses the edge of the diaphragm 220 against the inner convex ring 211. The upper end of the soundproof cover 230 is pressed against the lower side of the connector 131, and an annular soundproof cavity 250 is formed between the soundproof cover 230 and the outer sleeve 210. The microphone 240 is located inside the soundproof cover 230 and is connected to the heart sound detection circuit via a wire 400.

[0043] The principle of heart sound detection using the aforementioned heart sound acquisition probe 200 is as follows: the diaphragm 220 is close to the skin near the heart, and the diaphragm 220 resonates with the sound emitted by the heart. The microphone 240 collects the sound signal from the vibration of the diaphragm 220 and converts the sound signal into an electrical signal, which is then output after a series of filtering and amplification processes. During the detection process, the heart sound acquisition probe 200 may experience slight vibrations, and a small amount of noise may be generated between it and the piston 130 chamber. This application effectively reduces the noise entering the sound insulation cover 230 by setting a sound insulation cover 230 inside the outer sleeve 210 and forming an annular sound insulation cavity 250 between the sound insulation cover 230 and the outer sleeve 210, thereby reducing the interference of noise on heart sound detection.

[0044] Preferably, the lower outer edge of the soundproof cover 230 is provided with a positioning ring 231 that fits inside the outer sleeve 210. The lower end of the soundproof cover 230 is pressed onto the diaphragm 220 by the positioning ring 231, and the lower end of the soundproof cover 230 can also be positioned inside the outer sleeve 210 by the positioning ring 231.

[0045] Preferably, the connector 131 at the lower end of the piston 130 connected to the heart sound acquisition probe 200 is provided with a sound-insulating block 132 that abuts against the upper end of the soundproof cover 230. The sound-insulating block 132 can be a foam block. In this embodiment, the soundproof cover 230 is pressed against the outer sleeve 210 by the piston 130 for easy assembly. The piston 130 contacts the soundproof cover 230 through the sound-insulating block 132, which can effectively prevent external noise from being transmitted into the soundproof cover 230 through the piston 130, further reducing the detected noise.

[0046] In this embodiment, refer to Figure 3The ECG acquisition probe 300 includes a probe body 310. The lower end of the probe body 310 is provided with an electrode 320. The electrode 320 is connected to the ECG detection circuit through a wire 400. In order to facilitate the assembly and connection of the ECG acquisition probe 300 and the piston 130, the upper end of the probe body 310 is provided with a threaded sleeve 311. Each threaded sleeve 311 is threaded onto the connector 131 at the lower end of the corresponding piston 130.

[0047] 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A device for detecting electrocardiogram and heart sounds, characterized in that, include: The housing has a sealed cavity at its upper part, and multiple downwardly extending piston cavities are connected to the lower side of the sealed cavity. The two ends of each piston cavity are connected to the sealed cavity and the bottom of the housing, respectively. Each piston cavity contains a piston. At least one heart sound acquisition probe, the heart sound acquisition probe being fixed to the lower side of a piston and extending out from the lower end of the corresponding piston cavity; Multiple ECG acquisition probes are provided, each of which is fixed to the lower side of the remaining pistons and extends out from the lower end of the corresponding piston cavity. The pressure exerted on the human body by each probe can remain the same; The heart sound acquisition probe includes an outer sleeve, a diaphragm, a soundproof cover, and a microphone; The upper end of the outer sleeve is threaded onto the connector at the lower end of the corresponding piston, and the lower end of the outer sleeve is provided with an inner convex ring. The diaphragm is disposed inside the outer sleeve and located on the upper side of the inner convex ring; The soundproof cover is located inside the outer sleeve. The lower end of the soundproof cover has an opening and the edge of the diaphragm is pressed against the inner convex ring. The upper end of the soundproof cover is pressed against the lower side of the connector. An annular soundproof cavity is formed between the soundproof cover and the outer sleeve. The microphone is located inside the soundproof enclosure; The lower end of the piston connected to the heart sound acquisition probe has a sound-insulating block inside the connector that abuts against the upper end of the soundproof cover.

2. The electrocardiogram and heart sound detection device according to claim 1, characterized in that, Each piston cavity has a limiting ring on its inner side at the lower end, and each heart sound acquisition probe and electrocardiogram acquisition probe passes through the corresponding limiting ring.

3. The electrocardiogram and heart sound detection device according to claim 1, characterized in that, The housing consists of an upper housing and a lower housing. The sealing cavity is located inside the upper housing. The bottom of the sealing cavity is provided with multiple connecting sleeves. Each piston cavity is inserted into each connecting sleeve in a corresponding manner. A sealing ring is provided between each piston cavity and the connecting sleeve.

4. The electrocardiogram and heart sound detection device according to claim 3, characterized in that, The upper and lower housings are fixed together by screws.

5. The electrocardiogram and heart sound detection device according to claim 1, characterized in that, The housing is provided with an inflation / deflation port that communicates with the sealed cavity, and an adjustment valve is provided inside the inflation / deflation port.

6. The electrocardiogram and heart sound detection device according to claim 1, characterized in that, The upper side of the housing is connected to a tapered connecting part that gradually narrows at the top. A handle is connected to the upper end of the tapered connecting part. The wires of each of the heart sound acquisition probes and electrocardiogram acquisition probes pass through the corresponding pistons, then pass through the sealed cavity, the tapered connecting part and the handle in sequence, and finally come out from the tail end of the handle.

7. The electrocardiogram and heart sound detection device according to any one of claims 1 to 6, characterized in that, The outer edge of the lower end of the soundproof cover is provided with a positioning ring that fits inside the outer sleeve.

8. The electrocardiogram and heart sound detection device according to any one of claims 1 to 6, characterized in that, The ECG acquisition probe includes a probe body, with electrode pads at the lower end and an electrode pad at the upper end of the probe body. There are threaded sleeves, and each threaded sleeve is threadedly fitted onto the corresponding piston's lower end connector.

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