Heart tone signal acquisition device
By designing a cardiac phonation signal acquisition device with a deformable diaphragm and a multi-angle cardiac phonation sensor, the problem that traditional cardiac electrodes cannot adapt to different chest shapes has been solved, thus improving the convenience and accuracy of signal acquisition.
Patent Information
- Application Number
- CN202522615962.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-10
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-12-10
AI Technical Summary
Traditional heart sound acquisition devices cannot adapt to different chest shapes, resulting in poor contact or signal distortion, and are not convenient to operate or accurate in signal acquisition.
A cardiac sound pattern acquisition device was designed, which uses a deformable diaphragm and multiple heart sound sensors, combined with horizontal and vertical straps, to achieve multi-angle heart sound acquisition and adapt to different chest morphologies.
It improves the convenience and accuracy of signal acquisition, adapts to different thoracic shapes, makes operation more convenient, and ensures more accurate signal acquisition.
Smart Images
Figure CN223787638U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heart sound acquisition technology, specifically a heart sound pattern signal acquisition device. Background Technology
[0002] Traditional heart sound acquisition devices rely on stethoscopes of fixed shape or single-point sensors, such as electronic stethoscopes and piezoelectric heart sound sensors. The acquisition surfaces of these devices are mostly flat or have a fixed curvature, which cannot be adapted to different chest shapes, resulting in poor contact or signal distortion.
[0003] In addition, traditional heart sound acquisition devices can only collect local vibrations of the heart. To prevent the omission of key pathological information, multiple positions need to be adjusted to complete the heart sound acquisition. There is room for improvement in both the ease of operation and the accuracy of signal acquisition.
[0004] Therefore, in order to solve the above problems, a cardiac voiceprint signal acquisition device is proposed. Utility Model Content
[0005] The purpose of this invention is to provide a cardiac voiceprint signal acquisition device that improves the convenience and accuracy of signal acquisition and has good wearability, thereby solving the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A cardiac sound signature acquisition device includes an upper housing and a lower housing that are fastened together. A diaphragm is mounted on the lower housing via a support member. A first cardiac sound sensor and a second cardiac sound sensor are mounted on the diaphragm. The first cardiac sound sensor is located at the center of the diaphragm, and the second cardiac sound sensors are evenly distributed circumferentially around the first cardiac sound sensor. A controller is embedded in the top of the upper housing, and a battery is fixedly mounted on the lower side of the controller. Connecting rings are fixedly mounted at both ends of the lower housing, and a horizontal strap is installed between the connecting rings. A vertical strap is installed on the upper right end of the horizontal strap.
[0008] Specifically, the diaphragm includes a first support ring, a deformation ring, a second support ring, and connecting beams. The deformation ring has through holes for connecting support members. The deformation ring is circumferentially and evenly provided with connecting beams. The ends of the connecting beams that extend into the deformation ring are all fixedly connected to the same first support ring. The ends of the connecting beams that extend out of the deformation ring are respectively fixedly installed with second support rings. The first heart sound sensor is fixedly installed inside the first support ring, and the second heart sound sensor is fixedly installed inside the second support ring.
[0009] Furthermore, the number of the second heart sound sensors is 3 to 6, and the number of support members is 3 to 6 evenly distributed in a circle.
[0010] Furthermore, the thickness of the diaphragm is 1 mm.
[0011] Furthermore, the distance between the lower surface of the first heart sound sensor and the lower surface of the second heart sound sensor is H, and the value of H is 5 mm to 8 mm.
[0012] Specifically, the support component includes a smooth screw, a retaining ring, and a washer. The upper end of the smooth screw is screwed to the lower housing. An annular groove is formed on the circumferential side of the smooth screw, and a retaining ring is engaged in the annular groove. A washer is fitted onto the smooth screw, and the washer is located between the nut of the smooth screw and the retaining ring, and the washer passes through the through hole.
[0013] Furthermore, the diameter of the nut of the smooth screw and the diameter of the retaining ring are both larger than the through hole.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] When worn, the first heart sound sensor is placed against the chest, and the second heart sound sensor is attached to the chest by the conical deformation of the diaphragm. This allows for multi-angle heart sound acquisition and can also adapt to different chest shapes, making operation more convenient and signal acquisition more accurate.
[0016] In addition, the combination of horizontal and vertical straps can accommodate different body types and is easy to wear. Attached Figure Description
[0017] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a three-dimensional schematic view of the bottom structure of the lower shell of this utility model;
[0019] Figure 3 This is a schematic front view of the structure of this utility model;
[0020] Figure 4 This is a three-dimensional schematic diagram of the structure of the diaphragm of this utility model;
[0021] Figure 5 for Figure 3 A schematic cross-sectional view of the structure along the AA direction;
[0022] Figure 6 This is a schematic cross-sectional view of the support component of this utility model.
[0023] In the diagram: 1 Upper housing, 2 Lower housing, 3 Second heart sound sensor, 4 First heart sound sensor, 5 Support component, 51 Spur screw, 52 Snap ring, 53 Washer, 6 Connecting ring, 7 Diaphragm, 71 First support ring, 72 Deformation ring, 73 Second support ring, 74 Through hole, 75 Connecting beam, 8 Controller, 9 Vertical strap, 10 Horizontal strap. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Example content:
[0026] Please see Figure 1 , Figure 2 , Figure 3 A cardiac vocalization signal acquisition device is provided, comprising an upper housing 1 and a lower housing 2 that are snapped together. The upper housing 1 and the lower housing 2 can form a complete device box, providing a support base for the installation of other components. The snap-fit connection method facilitates installation and subsequent disassembly and maintenance.
[0027] A diaphragm 7 is mounted on the lower part of the lower housing 2 via a support member 5. A first heart sound sensor 4 and a second heart sound sensor 3 are mounted on the diaphragm 7. The first heart sound sensor 4 is located at the center of the diaphragm 7, and the second heart sound sensors 3 are evenly distributed in a circle around the first heart sound sensor 4.
[0028] The first heart sound sensor 4 serves as the main acquisition point, corresponding to the center of the heart. The second heart sound sensor 3, distributed in a circle, captures the surrounding heart sound signals through multi-angle coverage. The support 5 supports the diaphragm 7, providing space for the displacement of the first heart sound sensor 4 and the second heart sound sensor 3, adapting to different chest curvature changes, and improving the comprehensiveness of signal acquisition.
[0029] The diaphragm 7 is made of a deformable steel sheet, providing a mounting base for the first heart sound sensor 4 and the second heart sound sensor 3. When the first heart sound sensor 4 is displaced upward under force, it can displace all the second heart sound sensors 3 downward after the conical deformation of the diaphragm 7.
[0030] A controller 8 is embedded in the top of the upper housing 1, and a battery is fixedly installed on the lower side of the controller 8. The battery is used to provide power to the first heart sound sensor 4, the second heart sound sensor 3 and the controller 8. The controller 8 is an existing component that integrates signal processing, data display and storage functions. The first heart sound sensor 4 and the second heart sound sensor 3 are electrically connected to the controller 8 and can transmit the collected heart sound data to the controller 8.
[0031] For ease of wearing:
[0032] Both ends of the lower housing 2 are fixedly installed with connecting rings 6, and a horizontal strap 10 is installed between the connecting rings 6. A vertical strap 9 is installed on the upper right end of the horizontal strap 10. The horizontal strap 10 and the vertical strap 9 are existing components composed of strips, buckles and buckles. The horizontal strap 10 is used to bind horizontally to the chest, while the vertical strap 9 is used to bind vertically to the left shoulder, so as to align the device box with the heart and adapt to different body shapes.
[0033] Please see Figure 4 The specific structure of diaphragm 7:
[0034] The diaphragm 7 includes a first support ring 71, a deformation ring 72, a second support ring 73, and a connecting beam 75. The deformation ring 72 has a through hole 74 for connecting the support member 5. The connecting beams 75 are evenly arranged in a circular pattern on the deformation ring 72. The end of each connecting beam 75 extending into the deformation ring 72 is fixedly connected to the same first support ring 71. The end of each connecting beam 75 extending out of the deformation ring 72 is fixedly installed with a second support ring 73. The first heart sound sensor 4 is fixedly installed inside the first support ring 71, and the second heart sound sensor 3 is fixedly installed inside the second support ring 73.
[0035] The diaphragm 7 is integrally processed by punching. The support member 5 and the through hole 74 can support the deformation ring 72. The connecting beam 75 serves to connect the first support ring 71 and the second support ring 73 internally and externally. When the first support ring 71 moves upward with the first heart sound sensor 4, the transmission of the connecting beam 75 can cause the deformation ring 72 to produce a conical deformation, thereby swinging all the second support rings 73 downward, as well as the second heart sound sensor 3 installed on the second support ring 73. This allows the collection ends of the first heart sound sensor 4 and the second heart sound sensor 3 to be distributed on the spherical surface of the variable diameter, which is more conducive to attaching to the ribcage and has good adaptability.
[0036] The number of second heart sound sensors 3 is 3 to 6. They are distributed in a circular array to assist in the acquisition of heart sounds, ensuring sufficient coverage of the heart sound acquisition angle and further improving the accuracy of heart sound acquisition. The support members 5 are 3 to 6 evenly distributed in a circular pattern to ensure uniform support for the deformation ring 72 and prevent excessive local stress from affecting the stability of the conical deformation.
[0037] In addition, the thickness of the diaphragm 7 is 1 mm; this thickness can ensure that the diaphragm 7 generates sufficient deformation to achieve conical oscillation when subjected to force, and can also maintain structural rigidity to prevent excessive deformation.
[0038] The distance H between the lower surface of the first heart sound sensor 4 and the lower surface of the second heart sound sensor 3 is 5 mm to 8 mm; this ensures that when attached to the chest, the first heart sound sensor 4 is subjected to force first, and then all the second heart sound sensors 3 swing synchronously after being transmitted through the diaphragm 7, until the second heart sound sensors 3 are also attached to the chest.
[0039] The first heart sound sensor 4 can be of the HKY-06B type, with a sensitivity of up to 4mV / Pa, a frequency response range of 0.5~1200Hz, covering the entire heart sound frequency band (1~800Hz), and strong anti-interference ability; the second heart sound sensor 3 can be of the HKY-06E type, with a frequency response of 0.1~1500Hz, high signal-to-noise ratio, supports multi-angle heart sound acquisition, and is suitable for circumferential distribution.
[0040] Please see Figure 5 , Figure 6 The specific structure of support member 5:
[0041] The support component 5 includes a smooth screw 51, a retaining ring 52, and a washer 53. The upper end of the smooth screw 51 is screwed to the lower housing 2. A groove is formed on the circumferential side of the smooth screw 51, and the retaining ring 52 is engaged in the groove. The washer 53 is fitted onto the smooth screw 51. The washer 53 is located between the nut of the smooth screw 51 and the retaining ring 52, and the washer 53 passes through the through hole 74. The retaining ring 52 is used to axially limit the washer 53. The washer 53 is made of rubber material to avoid mutual wear and noise caused by hard friction between the through hole 74 and the smooth screw 51 and the retaining ring 52.
[0042] The diameter of the nut of the smooth rod screw 51 and the diameter of the retaining ring 52 are both larger than the through hole 74, which can stably restrict the diaphragm 7 between the nut of the smooth rod screw 51 and the retaining ring 52, and leave 1 mm of space for movement at both the top and bottom, so as not to affect the deformation action of the deformation ring 72.
[0043] The working principle of this embodiment:
[0044] When in use, the device box is worn on the heart using the horizontal strap 10 and the vertical strap 9.
[0045] The device box uses the support 5 and diaphragm 7 to first place the first heart sound sensor 4 against the chest wall, and then the second heart sound sensor 3 is attached to the chest wall by the conical deformation of the diaphragm 7, thus completing the adaptive attachment of the sensor.
[0046] Finally, the heart sound data collected by the sensor is transmitted to the controller 8 via an electrical connection, enabling real-time analysis, recording, and display of the heart sound signals.
[0047] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A cardiac vocalization signal acquisition device, characterized in that: The device includes an upper housing (1) and a lower housing (2) that are fastened together. A diaphragm (7) is installed below the lower housing (2) via a support member (5). A first heart sound sensor (4) and a second heart sound sensor (3) are installed on the diaphragm (7). The first heart sound sensor (4) is located at the center of the diaphragm (7), and the second heart sound sensors (3) are evenly distributed in a circle around the first heart sound sensor (4). A controller (8) is fitted into the top of the upper housing (1), and a storage battery is fixedly installed on the lower side of the controller (8). Both ends of the lower housing (2) are fixedly installed with connecting rings (6), and a horizontal strap (10) is installed between the connecting rings (6). A vertical strap (9) is installed on the right end of the upper side of the horizontal strap (10).
2. The cardiac vocalization signal acquisition device according to claim 1, characterized in that: The diaphragm (7) includes a first support ring (71), a deformation ring (72), a second support ring (73), and a connecting beam (75). The deformation ring (72) has a through hole (74) for connecting the support member (5). The deformation ring (72) is evenly provided with connecting beams (75) in a circular pattern. The end of each connecting beam (75) extending into the deformation ring (72) is fixedly connected to the same first support ring (71). The end of each connecting beam (75) extending out of the deformation ring (72) is fixedly installed with a second support ring (73). The first heart sound sensor (4) is fixedly installed in the first support ring (71), and the second heart sound sensor (3) is fixedly installed in the second support ring (73).
3. The cardiac vocalization signal acquisition device according to claim 2, characterized in that: The number of the second heart sound sensors (3) is 3 to 6, and the number of the support members (5) is 3 to 6 evenly distributed in a circle.
4. The cardiac vocalization signal acquisition device according to claim 1, characterized in that: The thickness of the diaphragm (7) is 1 mm.
5. The cardiac vocalization signal acquisition device according to claim 1, characterized in that: The distance between the lower surface of the first heart sound sensor (4) and the lower surface of the second heart sound sensor (3) is H, and the value of H is 5 mm to 8 mm.
6. The cardiac vocalization signal acquisition device according to claim 2, characterized in that: The support member (5) includes a bare screw (51), a retaining ring (52) and a washer (53). The upper end of the bare screw (51) is screwed to the lower housing (2). The circumferential side of the bare screw (51) is provided with an annular groove, which is engaged with the retaining ring (52). The bare screw (51) is fitted with a washer (53), which is located between the nut of the bare screw (51) and the retaining ring (52), and the washer (53) passes through the through hole (74).
7. A cardiac vocalization signal acquisition device according to claim 6, characterized in that: The diameter of the nut of the smooth screw (51) and the diameter of the retaining ring (52) are both larger than the through hole (74).