Mounting structure and portable heart sound and electrocardio detector with same

Abstract

The invention provides a mounting structure and a portable heart sound and electrocardiogram detector with the mounting structure, which are characterized in that the portable heart sound and electrocardiogram detector is realized by designing the mounting structure of a bottom shell, a dry electrode, a sound sensor, a PCBA (Printed Circuit Board Assembly) board, a switch key and an upper cover. The portable heart sound and electrocardio detector is provided with four elastic telescopic dry electrodes, an elastic telescopic piezoelectric film sound sensor, a USB port, a switch key and an LED indicator. A PCBA (Printed Circuit Board Assembly) for placing and welding devices and circuits of the portable heart sound and electrocardiogram detector is fixed on the bottom shell, is connected with the electrode through an electrode buckle, is connected with the sound sensor through an input socket, and is controlled by a mobile phone App (Application) to complete the collection, recording, storage, sharing and transmission of sound and electrocardiogram signals. According to the mounting structure, the portable heart sound and electrocardiogram detector has the advantages of integration of multiple functions, simple structure and easiness in mounting and use.

Description

Technical Field

[0001] The invention relates to the field of medical instruments, and in particular to a mounting structure and a portable heart sound and electrocardiogram detector having the mounting structure. Background Art

[0002] Electrocardiogram (ECG) reflects the electrical activity and functional status of the heart, and PCG reflects the closure of the mitral and tricuspid valves, aortic and pulmonary valves, and other heart sounds that indicate heart abnormalities. If ECG and PCG can be tested simultaneously to comprehensively evaluate heart conditions and diagnose heart diseases, a more comprehensive diagnosis can be obtained.

[0003] The existing method of obtaining ECG and PCG is to use an ECG detector to collect the patient's electrocardiogram signal, and use an electronic heart sound and an ECG detector to collect the heart sound signal. This method of using different devices to collect ECG and PCG signals on the same patient has the significant disadvantages of asynchronous signal collection time and large signal errors, which affects the accuracy of ECG and PCG diagnosis, and the collection process is complicated, time-consuming and labor-intensive.

[0004] In addition, the existing ECG detection electrodes do not have elastic expansion and contraction functions, and cannot ensure good contact of each electrode when detecting the ECG on the patient's chest. Similarly, the existing sound sensors are usually capacitive electret sound sensors, and it is impossible to construct a sound sensor with an elastic expansion and contraction structure that can be close to the patient's skin surface to collect sound signals.

[0005] The high degree of integration and miniaturization of electronic devices make it possible for a complex ECG detector and an electronic heart sound and electrocardiogram detector to be integrated on a very small circuit board and placed in the structural shell to construct a portable heart sound and electrocardiogram detector, which is easy to carry and use and becomes a remote heart sound and electrocardiogram detection and diagnosis tool for individuals and families. Summary of the invention

[0006] The present invention provides a mounting structure and a portable heart sound and electrocardiogram detector having the mounting structure, which can solve the problems of the prior art. The technical solution is as follows: In one aspect, the present invention provides a portable heart sound and electrocardiogram detector installation structure, the installation structure comprising: Four dry electrodes are respectively passed through the holes on the bottom shell and fastened to the electrodes on the PCBA board. The PCBA board is fixed to the studs of the bottom shell by screws. When in use, it can be close to the skin of the patient's chest detection point to simultaneously collect the patient's three-channel ECG signals; The sound sensor is installed on the bottom shell through the installation tube on the bottom shell, so that when the four dry electrodes are close to the patient's chest skin to collect ECG signals, the piezoelectric film pickup head can be close to the patient's chest skin to collect sound signals; A lithium battery, the size of which is selected and mounted on the PCBA board, for storing energy and supplying power to the portable heart sound and electrocardiogram detector; PCBA board, for placing and welding the components and circuits of the portable heart sound and electrocardiogram detector, as well as the socket, and placing the lithium battery, for data collection, signal processing and data transmission; The bottom shell is a main body of the portable heart sound and electrocardiogram detector structure, which is used to install the dry electrode, sound sensor, PCBA board, key button, reset switch hole and upper cover, etc. The upper cover is another main body of the portable heart sound and electrocardiogram detector structure, which is fastened with the bottom shell through buckles to form the entire shell of the portable heart sound and electrocardiogram detector.

[0007] In a possible design, the dry electrodes and the sound sensor are installed at the bottom of the bottom shell, and its structure ensures that the four dry electrodes and the pickup heads of the sound sensor are in good contact with the patient's chest skin when the patient uses the portable heart sound and electrocardiograph.

[0008] Furthermore, the sound sensor is installed between the dry electrodes to facilitate the collection of heart sound signals in front of the patient's chest.

[0009] Furthermore, the dry electrode is a conductive dry electrode formed by plating silver chloride on an ABS injection-molded electrode. The entire electrode surface is conductive as a whole, and good conductivity is formed between the skin of the patient being tested and the ECG detection input circuit through the electrode buckle.

[0010] In a possible design, the dry electrode is an elastic and retractable dry electrode. When the patient presses the electrode to detect the ECG signal, the retractable electrode can maintain good contact with the patient's skin, while also ensuring that the sound sensor is in good contact with the patient's skin.

[0011] Preferably, the electrode is divided into two parts, one part is a large truncated cone and a cylinder, and the other part is a spherical cap and a small truncated cone. The small truncated cone is embedded in the large truncated cone, and a spring or elastic material is filled between the two to form the elastic telescopic electrode.

[0012] Furthermore, the spherical crown surface is provided with evenly distributed small thorns, so that when the surface contacts the patient's skin, good contact can be ensured without displacement, thereby reducing myoelectric interference.

[0013] Furthermore, there is a small frustum on the cross section of the spherical crown, the thickness and size of which ensure that the small frustum can be embedded in the large frustum and has a certain degree of elasticity.

[0014] Furthermore, one side of the large cone has a non-through hole and a circular step, the aperture size and depth of the non-through hole are adapted to the small cone, and after being filled with a spring or elastic material, the embedded small cone has a certain elasticity. The diameter of the large cone is consistent with the size of the electrode mounting hole of the bottom shell, so that the large cone can be embedded in the electrode mounting hole of the bottom shell. The large cone has a circular step, the diameter of which is larger than the diameter of the electrode mounting hole of the bottom shell, so that when the large cone and the cylindrical part are fastened to the PCBA board by the cylindrical head, the large cone and the cylindrical part are fastened to the bottom shell.

[0015] Furthermore, the other side of the large cone is a cylinder, one end of the cylinder is on the large cylinder, and the other end is made into a spherical shape, which is used to fasten the electrode to the electrode buckle on the PCBA board.

[0016] In a possible design, the sound sensor is fixed at an appropriate position on the bottom shell, so that when the four dry electrodes are pressed tightly to ensure that they are in close contact with the chest skin, the sound sensor can also be in close contact with the patient's chest skin to collect heart sound signals.

[0017] Furthermore, the mounting structure of the sound sensor is an elastic mounting structure. When the patient presses the electrode to detect the ECG signal, the retractability of the sound sensor can ensure that the dry electrode maintains good contact with the patient's skin while also ensuring that the sound sensor is in good contact with the patient's skin.

[0018] Furthermore, the sound sensor mounting structure is composed of a pickup hole and a mounting tube on the bottom shell: the bottom shell mounting hole is used to allow the pickup head of the sound sensor to pass through; the mounting tube is used to place and fix the sound sensor and form an elastic telescopic structure.

[0019] Furthermore, after the sound sensor is placed in the installation tube, one end of the sound pickup head passes through the through hole on the bottom shell, and then a mounting cover with a spring or elastic material is tightly sleeved on the installation tube to form an elastic telescopic structure.

[0020] In a possible design, the bottom shell is designed with multiple PCB mounting columns for mounting the PCB; it is designed with 4 electrode mounting holes for mounting electrodes; a USB mounting port is designed at a position flush with the PCBA board for charging the heart sound and electrocardiograph through the USB port on the PCBA board; a reset switch hole is designed on the right side of the USB port for resetting the reset switch; an elliptical switch button is designed in the middle of the side of the bottom shell, and the switch button is designed to be light-transmissive, which is used to turn on and off the machine and display the working status of the heart sound and electrocardiograph represented by the color change of the LED light.

[0021] Preferably, the bottom shell and the upper cover are made of non-metallic materials to ensure good communication between the portable heart sound and electrocardiogram detector and the mobile phone.

[0022] Furthermore, the upper cover is fastened to the bottom shell by buckles to form an integral shell structure of the heart sound and electrocardiograph detector.

[0023] On the other hand, the present invention also provides a portable heart sound and electrocardiogram detector, including the mounting structure provided in the first aspect of the present invention and the detachable connection of the sound sensor, dry electrode, PCBA board and lithium battery.

[0024] In a possible design, the portable heart sound and electrocardiogram detector includes a bottom shell, a dry electrode, a sound sensor, a PCBA, a lithium battery, a switch button, and an upper cover; The bottom shell is used to install the electrodes, sound sensor, PCBA, lithium battery, switch button, and upper cover; The dry electrode is fastened to the electrode buckle of the PCBA through the bottom shell mounting hole to collect ECG signals; The sound sensor is installed on the bottom shell through the bottom shell installation hole and the installation tube on the bottom shell, and is pressed by the installation cover. The sound sensor is connected to the sound sensor input terminal on the PCBA through a wire to collect sound signals; The PCBA is mounted on the studs of the bottom shell, connected to the electrodes through the electrode buckles, connected to the sound sensor through wires, and connected to the lithium battery through the battery socket, for collecting and processing electrocardiogram signals and heart sound signals, and communicating with the App through Bluetooth to complete control and data transmission; The lithium battery is used to store energy and supply power to each unit on the PCBA board; The switch button is used to turn the switch on and off, and the LED light around it can be used to indicate the working status. The upper cover is used to be fastened with the bottom shell through buckles to form the heart sound and electrocardiogram detector.

[0025] In one possible design, the portable heart sound and electrocardiogram detector is controlled by a mobile phone App to complete the collection, recording, storage, sharing and transmission of sound and electrocardiogram signals.

[0026] The beneficial effects brought by the technical solution provided by the present invention are: The present invention provides a mounting structure and a portable heart sound and electrocardiogram detector having the mounting structure, which realizes the portable heart sound and electrocardiogram detector by designing mounting structures such as a bottom shell, a dry electrode, a sound sensor, a PCBA board, a switch button, and an upper cover. The mounting structure enables the portable heart sound and electrocardiogram detector to have multi-functional integration, a simple structure, easy installation and use, and a compact and beautiful structure, thereby expanding the scope of application of the mounting structure and the portable heart sound and electrocardiogram detector having the mounting structure, reducing production costs, and improving product competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the disassembly of the installation structure of the portable heart sound and electrocardiogram detector provided by the present invention; Figure 2 It is a schematic diagram of the telescopic elastic structure of the dry electrode provided by the present invention; Figure 3 It is a schematic diagram of the telescopic elastic installation structure of the sound sensor provided by the present invention; Figure 4 The present invention provides a three-dimensional diagram of the appearance of a portable heart sound and electrocardiogram detector. Implementation

[0028] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] A person skilled in the art may be aware of some variations and equivalent substitutions of the present invention, but these variations and equivalent substitutions should not be construed as exceeding the protection scope of the present invention.

[0030] In the first aspect, the present invention provides a schematic diagram of the installation structure of a portable heart sound and electrocardiogram detector. Figure 1 The portable heart sound and electrocardiogram detector installation structure includes: 4 dry electrodes 11, 12, 13, 14, a sound sensor 2, a bottom shell 3, a PCBA board 4, a lithium battery 5, and an upper cover 6; The dry electrodes 11, 12, 13, 14 are elastic dry electrodes, which pass through the electrode holes 301 on the bottom shell of the 3, are fastened to the electrode buckle 41 of the 4, and are then connected to the input end of the electrocardiogram acquisition and processing circuit on the 4, so as to collect the electrocardiogram signal of the patient's chest; The sound sensor 2 is a piezoelectric film sensor, which is placed in the installation tube 32 of the 3. The size of the inner tube of the 32 matches the size of the 2. The sound pickup head of the 2 passes through the sound pickup head hole on the bottom of the 32, and can be directly attached to the patient's chest skin when used by the patient; the 2 is pressed by the elastic cover on the 32 to form elastic expansion and contraction, and the output of the 2 is sent to the heart sound processing unit through the plug to collect the patient's chest heart sound signal; The switch button 34 on 3 is installed on the side wall of 3; 35 is a USB port window, and the USB cable plug is inserted into the USB socket on 4 through 35; 36 is a reset button switch pinhole, and the reset switch on 4 can be pressed with a needle; The PCBA board 4 is installed in the 3 and fastened to the studs 33 of the 3 with screws; The lithium battery 5 is placed on the 4; The upper cover 6 is fastened with the upper cover 3 by a buckle to form a three-dimensional appearance of the portable heart sound and electrocardiogram detector, as shown in FIG. Figure 4 shown.

[0031] like Figure 2 , as shown in the schematic diagram of the telescopic elastic structure of the dry electrode, the dry electrode includes a spherical cap 21, a small frustum 22, a spur 23, a spring or elastic material 24, a large frustum 25, a large frustum step 26, a column 27, a hemispherical head 28 and a large frustum cavity 29: Said 21, 22, 23 constitute the lower half of the dry electrode, which is a whole; said 25, 26, 27, 28 constitute the upper half of the dry electrode, which is another whole; said lower half 22 is inserted into the inner cavity 26 of the upper half to constitute the dry electrode as a whole; when said 22 is inserted into said 26, said 24 is placed in said 26 to constitute the elastic telescopic structure of the dry electrode; the diameter of said large frustum step 26 is larger than the diameter of said electrode hole 301 on said 3, which can help said electrode to be tightly attached to the bottom of said 3 when it is buckled with said electrode buckle 41 on said 4; said protrusions 23 are evenly and densely distributed on the spherical crown surface, so that when said spherical crown surface contacts with the patient's skin, it can ensure good contact and is not easy to move, thereby reducing myoelectric interference; said 28 is hemispherical, and its radius is adapted to said 41, so it can be tightly buckled into said electrode buckle 41 on said 4.

[0032] As attached Figure 3As shown in the schematic diagram of the sound sensor telescopic elastic mounting structure, the sound sensor mounting structure includes a sensor pickup head 31, a sensor body 33, a mounting tube 32, a spring or elastic material 34, and a mounting tube sleeve 35: the piezoelectric film sensor pickup head 31 is pressed against the skin surface to detect the sound signal transmitted from the skin surface; the sound sensor body 33 is a thin cylinder; the sound sensor 32 is a cylindrical structure on which the sound sensor is mounted, which is a part of the bottom shell, wherein a through hole opened on the bottom shell allows the sound sensor 31 to pass through so that it can be tightly attached to the patient's skin during detection; the sound sensor 35 is a tube cover on the sound sensor 32, and the sound sensor 34 is placed in the tube cover and then tightly mounted on the sound sensor 32 to form the elastic telescopic structure of the sound sensor 31.

[0033] On the other hand, the present invention also provides a portable heart sound and electrocardiogram detector, including the mounting structure provided by the present invention and the detachable connection of the dry electrode, sound sensor, PCBA board and lithium battery.

[0034] As attached Figure 1 As shown, the structure of 3 is used to install 11, 12, 13, 14, 2, 4, 5, 6, and 34; the installation order is to first install 34 on 3, then put 4 into 3, and fix 4 on 33 with screws. Note that 35 and 34 are respectively aligned with the USB port and switch on 4; 11, 12, 13, and 14 are respectively installed on the electrode buckle 41 of 4 through the electrode installation hole 301 on 3; then put 2 into 32, and pass the pickup head 31 of 2 through the pickup head through hole of 3, put 34 into 35, and use 35 to tighten the outer tube of 32, and the output of 33 is connected to the socket of 4 through a wire plug; 5 is connected to the battery socket of 4 with a plug, and 5 is placed on 4; 6 is fastened to 3 by a buckle, and assembled into the appearance stereoscopic diagram of the portable heart sound and electrocardiogram detector, as shown in Figure 4 shown.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description. It is therefore intended that all variations that fall within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0036] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A portable heart sound and electrocardiogram detector installation structure, characterized in that: The portable heart sound and electrocardiogram detector installation structure comprises: Four dry electrodes are respectively passed through the holes on the bottom shell and fastened to the electrodes on the PCBA board. When in use, they can be closely attached to the skin of the patient's chest detection point to simultaneously collect the patient's three-channel ECG signals; The sound sensor is installed on the bottom shell through the mounting structure on the bottom shell, and has the characteristics of elastic expansion and contraction. When the four dry electrodes are close to the patient's chest skin to collect ECG signals, the piezoelectric film pickup head can be close to the patient's chest skin to collect sound signals; PCBA board, for placing and welding the components and circuits of the portable heart sound and electrocardiogram detector, placing the lithium battery, and for data collection, signal processing and data transmission; A lithium battery, the size of which is selected and mounted on the PCBA board, for storing energy and supplying power to the portable heart sound and electrocardiogram detector; The bottom shell is a main body of the portable heart sound and electrocardiogram detector structure, which is used to install the dry electrode, sound sensor, PCBA board, key button, reset switch hole, upper cover, etc. The upper cover is another main body of the portable heart sound and electrocardiogram detector structure, which is connected with the bottom shell through buckles to form the entire shell of the portable heart sound and electrocardiogram detector.

2. The portable heart sound and electrocardiogram detector installation structure according to claim 1 is characterized in that: The dry electrode is an elastic and retractable dry electrode. When the patient presses the electrode to detect the electrocardiogram signal, the retractable electrode can maintain good contact with the patient's skin.

3. The portable heart sound and electrocardiogram detector installation structure according to claim 1 is characterized in that: The sound sensor installation structure has elastic expansion characteristics. The sound sensor is installed in the sensor installation tube of the bottom shell. The pickup head of the sensor passes through the bottom shell and is tightly covered with a mounting cover with a built-in spring or elastic material.

4. The portable heart sound and electrocardiogram detector installation structure according to claim 1, characterized in that: Four dry electrodes are arranged on the bottom shell at the four corners of a rectangle, which are respectively LA, LL, RA, and RL. The length and width of the rectangle are selected according to the requirements for detecting the electrocardiogram signal on the patient's chest.

5. The portable heart sound and electrocardiogram detector installation structure according to claim 1, characterized in that: The sound sensor is installed slightly to the right between the left dry electrodes LA and LL.

6. A portable heart sound and electrocardiogram detector, characterized in that: The portable heart sound and electrocardiogram detector comprises: the portable heart sound and electrocardiogram detector installation structure according to any one of claims 1 to 5.

7. The portable heart sound and electrocardiogram detector according to claim 6, characterized in that: The portable heart sound and electrocardiogram detector includes: a bottom shell, a dry electrode, a sound sensor, a PCBA, a lithium battery, a switch button, and an upper cover: The bottom shell is used to install the electrodes, sound sensor, PCBA, lithium battery, switch button, and upper cover; The dry electrode is fastened to the electrode buckle of the PCBA through the bottom shell mounting hole to collect ECG signals; The sound sensor is installed on the bottom shell through the bottom shell installation hole and the sound sensor installation tube on the bottom shell, and is pressed by the sound sensor installation cover, and is connected to the sound sensor input end on the PCBA through a wire for collecting sound signals; The PCBA is mounted on the studs of the bottom shell, connected to the electrodes through the electrode buckles, connected to the sound sensor through wires, and connected to the lithium battery through the battery socket, for collecting and processing electrocardiogram signals and heart sound signals, and communicating with the App through Bluetooth to complete control and data transmission; The lithium battery is used to store energy and supply power to each unit on the PCBA board; The switch button is used to turn the switch on and off, and the LED light around it can be used to indicate the working status. The upper cover is used to be fastened with the bottom shell through buckles to form the heart sound and electrocardiogram detector.

8. The portable heart sound and electrocardiogram detector according to claim 6, characterized in that: The portable heart sound and electrocardiogram detector is controlled by a mobile phone App to complete the collection, recording, storage, sharing and transmission of sound and electrocardiogram signals.

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