Electronic stethoscope with noise reduction function

Abstract

The utility model relates to the field of medical instruments, in particular to an electronic stethoscope with a noise reduction function, which comprises a stethoscope head shell, a circular truncated cone partition plate, a tympanic membrane, a sound sensor, an amplifier, a filter, a noise reducer, a mounting plate and the like, a cavity is arranged in the stethoscope head shell, the circular truncated cone partition plate is connected to the bottom of the cavity, and the tympanic membrane is connected to the bottom of the circular truncated cone partition plate. A mounting plate is arranged at the top of the circular truncated cone partition plate and connected with the stethoscope head shell, a sound sensor, an amplifier, a filter and a noise reducer are connected to the bottom of the mounting plate, and the sound sensor is connected with the circular truncated cone partition plate. The noise reduction device, the sound insulation ring and other components are arranged, the sound insulation ring can isolate external speaking sound, clothes friction sound, environment noise and the like during use, the noise reduction device can recognize and reduce noise from the environment and improve the sound quality, meanwhile, the wire arrangement box shell, the clamping plate, the rotating rod and other components are further arranged, when a wire is too long, the wire can be stored, and the wire arrangement box is convenient to use. And the applicability and the operation convenience of the electronic stethoscope are improved.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to an electronic stethoscope with a noise reduction function. Background Art

[0002] A stethoscope is a medical device that is often used to listen to the sounds of a patient's heart, lungs, and other body parts. It usually consists of a stethoscope head, a tube, and an ear hook. When in use, the stethoscope head is placed in contact with the body part to pick up the sound, and the ear hook is placed in the ear to listen to the sound. For some people with anxiety, listening to the sound of their own heartbeat may help relax the body and mind, enhance self-awareness, and reduce anxiety. This experience can make them feel connected to their body, thereby helping them better manage anxiety.

[0003] The patent with the publication number of CN215128930U discloses an electronic stethoscope. Although the electronic stethoscope solves the problems of poor system integration, inconvenient equipment and inability to adjust the signal size, the electronic stethoscope does not have a noise reduction function. Speech sound, clothing friction sound and environmental noise may affect the sound quality. In view of this problem, the utility model provides an electronic stethoscope with a noise reduction function to improve its applicability and convenience of operation. Utility Model Content

[0004] In order to overcome the shortcoming that the existing electronic stethoscope has no noise reduction function, the purpose of the utility model is to provide an electronic stethoscope with a noise reduction function.

[0005] The technical scheme of the utility model is: an electronic stethoscope with noise reduction function, including a stethoscope head shell, a truncated cone partition, a tympanic membrane, a sound sensor, an amplifier, a filter, a noise reducer, a mounting plate, a digital processor, a power supply compartment, a battery, a wire, a display, a connecting wire and an earphone, a cavity is arranged inside the stethoscope head shell, a truncated cone partition is fixedly connected to the bottom of the cavity, a tympanic membrane is fixedly connected to the bottom of the truncated cone partition, a mounting plate is arranged on the top of the truncated cone partition, the mounting plate is fixedly connected to the stethoscope head shell, a sound sensor, an amplifier, a filter and a noise reducer are fixedly connected to the bottom of the mounting plate, and the sound sensor is fixedly connected to the truncated cone partition. The board is detachably connected, the sound sensor, amplifier, filter and noise reducer are electrically connected in sequence, a digital processor is fixedly connected to the top of the mounting board, the digital processor is electrically connected to the noise reducer, a power compartment is fixedly connected to the top of the earphone shell cavity, a battery is fixedly connected to the upper part of the power compartment, the battery is electrically connected to the sound sensor, amplifier, filter, noise reducer and digital processor, the top of the earphone shell is electrically connected to one end of the wire, the other end of the wire is electrically connected to the display, the end of the display away from the wire is electrically connected to one end of the connecting wire, and the other end of the connecting wire is electrically connected to headphones.

[0006] In one embodiment, the display has built-in timing, storage and playback functions.

[0007] In one of the embodiments, a sound insulation ring is also included. A groove is provided at the bottom of the earpiece shell, and the sound insulation ring is fixedly connected in the groove.

[0008] In one of the embodiments, a rubber sleeve is further included, and the rubber sleeve is fixedly connected to the bottom of the earphone housing.

[0009] In one of the embodiments, an anti-slip protrusion is provided on the bottom of the rubber sleeve.

[0010] In one of the embodiments, it also includes a wire management box shell, a rotating rod, a guide rod, a spring, a card plate and a card column. The wire management box shell is provided in the middle of the wire, and the rotating rod is rotatably connected to the middle of the wire management box shell. The wire passes through one side of the wire management box shell, is wound around the rotating rod, and passes through the other side of the wire management box shell. The rotating rod is provided with an inner cavity, and the guide rod is fixedly connected to the inner cavity. The middle of the guide rod is slidably connected to the card plate, and a spring is provided on the upper part of the card plate, one end of the spring is fixedly connected to the card plate, and the other end is fixedly connected to the rotating rod. At least four card columns are fixedly connected to the upper part of the wire management box shell, and the right part of the card plate is slidably connected to the card column.

[0011] Beneficial effects: The utility model is provided with components such as a noise reducer and a sound insulation ring. When in use, the sound insulation ring can isolate external speech sounds, clothing friction sounds, environmental noise, etc., while the noise reducer can identify and reduce noise from the environment, thereby improving the quality of sound. At the same time, components such as a wire management box shell, a card plate, and a rotating rod are also provided, which can be used to store the wires when they are too long, thereby improving the applicability and ease of operation of the electronic stethoscope. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0013] Figure 2 It is a schematic diagram of the components such as the rotating rod, the wire and the cable management box shell of the utility model.

[0014] Figure 3 It is a cross-sectional view of the earpiece housing, the mounting plate, the power supply compartment and other components of the utility model.

[0015] Figure 4 It is a cross-sectional view of the outer shell, rotating rod, guide rod and other components of the wire management box of the utility model.

[0016] Markings in the figure are: 1-headphone shell, 2-cone partition, 3-eardrum, 4-sound sensor, 5-amplifier, 6-filter, 7-noise reducer, 8-mounting plate, 9-digital processor, 10-power compartment, 11-battery, 12-wire, 13-wire management box shell, 14-rotating rod, 15-guide rod, 16-spring, 17-card plate, 18-card column, 19-display, 20-connecting wire, 21-earphone, 22-sound insulation ring, 23-rubber sleeve. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the embodiments shown in the accompanying drawings.

[0018] An electronic stethoscope with noise reduction function, such as Figure 1-Figure 4As shown, it includes a stethoscope housing 1, a truncated cone partition 2, an eardrum 3, a sound sensor 4, an amplifier 5, a filter 6, a noise reducer 7, a mounting plate 8, a digital processor 9, a power supply compartment 10, a battery 11, a wire 12, a display 19, a connecting wire 20, an earphone 21, a sound insulation ring 22 and a rubber sleeve 23. The bottom of the stethoscope housing 1 is fixedly connected to a rubber sleeve 23, and the bottom of the rubber sleeve 23 is provided with an anti-slip protrusion. The rubber sleeve 23 can prevent the operator's hand from shaking and causing inaccurate sound pickup. The bottom of the stethoscope housing 1 is also provided with a groove, and a sound insulation ring 22 is fixedly connected in the groove. The sound insulation ring 22 can isolate external speech The sound quality is improved by filtering out the sound, clothing friction sound and environmental noise, etc., a cavity is provided inside the earpiece shell 1, a truncated cone partition 2 is fixedly connected to the bottom of the cavity, a tympanic membrane 3 is fixedly connected to the bottom of the truncated cone partition 2, a mounting plate 8 is provided on the top of the truncated cone partition 2, the mounting plate 8 is fixedly connected to the earpiece shell 1, a sound sensor 4, an amplifier 5, a filter 6 and a noise reducer 7 are fixedly connected to the bottom of the mounting plate 8, the sound sensor 4 is detachably connected to the truncated cone partition 2, the sound sensor 4, the amplifier 5, the filter 6 and the noise reducer 7 are electrically connected in sequence, the sound sensor 4 is a highly sensitive piezoelectric microphone, negative The amplifier 5 can amplify the sound signal captured by the sound sensor 4 and increase the amplitude of the signal, so as to ensure that even weak body sounds can be heard clearly. The filter 6 is used to filter out unnecessary frequencies to make the target sound clearer. The noise reducer 7 can identify and reduce noise from the environment, thereby improving the accuracy of auscultation. A digital processor 9 is fixedly connected to the top of the mounting plate 8. The digital processor 9 is electrically connected to the noise reducer 7. The sound signal transmitted from the noise reducer 7 passes through the digital processor 9. The device 9 can further optimize the sound signal and extract specific features. The top of the cavity of the earphone shell 1 is fixedly connected with a power compartment 10, and the upper part of the power compartment 10 is fixedly connected with a battery 11. The battery 11 is electrically connected to the sound sensor 4, the amplifier 5, the filter 6, the noise reducer 7 and the digital processor 9. The top of the earphone shell 1 is electrically connected to one end of the wire 12, and the other end of the wire 12 is electrically connected to the display 19. The display 19 has built-in timing, storage and playback functions. The end of the display 19 away from the wire 12 is electrically connected to one end of the connecting line 20, and the other end of the connecting line 20 is electrically connected to the earphone 21. When in use, the operator holds the earphone shell 1, puts on the earphone 21, and then touches the bottom of the earphone shell 1 to the body part to pick up the sound.When sound enters the conical partition 2, the eardrum 3 will vibrate, and the eardrum 3 will convert the sound into mechanical vibration, which will then be captured by the sound sensor 4. The sound signal captured by the sound sensor 4 is amplified by the amplifier 5, and then filtered by the filter 6, reduced by the noise reducer 7 and optimized by the digital processor 9. Finally, the high-quality sound signal is transmitted by the digital processor 9 to the display 19 and the headphones 21, and the display 19 can display and store the final data for subsequent re-listening.

[0019] like Figure 4 As shown, it also includes a wire management box shell 13, a rotating rod 14, a guide rod 15, a spring 16, a card plate 17 and a card column 18. The wire management box shell 13 is provided in the middle of the wire 12, and the rotating rod 14 is rotatably connected to the middle of the wire management box shell 13. The wire 12 passes through one side of the wire management box shell 13, is wound around the rotating rod 14, and passes through the other side of the wire management box shell 13. The rotating rod 14 is provided with an inner cavity, and the guide rod 15 is fixedly connected in the inner cavity. The middle of the guide rod 15 is slidably connected to the card plate 17, and a spring 16 is provided on the upper part of the card plate 17. One end of the spring 16 is fixedly connected to the card plate 17, and the other end is fixedly connected to the rotating rod 14. The upper part of the wire management box shell 13 is fixedly connected with at least There are four clamping posts 18, and the right part of the clamping plate 17 is slidably connected with the clamping post 18. The clamping post 18 can limit the position of the clamping plate 17. When the wire 12 is too long and needs to be rolled up, the clamping plate 17 is pushed upward, and the clamping plate 17 slides upward to squeeze the spring 16, and then the clamping plate 17 slides out from the upper part of the clamping post 18, and then the clamping post 18 no longer limits the clamping plate 17, and then the clamping plate 17 is rotated, and the clamping plate 17 drives the rotating rod 14 to rotate, so that the wire 12 is rolled up. When the length of the wire 12 is appropriate, the rotation is stopped, and then the clamping plate 17 is released, the spring 16 is reset, and then the clamping plate 17 is pushed to move downward, and then the right part of the clamping plate 17 slides onto the clamping post 18, and then the clamping post 18 restricts the wire 12 again.

[0020] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. An electronic stethoscope with a noise reduction function, comprising a stethoscope head shell (1), a truncated cone partition (2) and an eardrum (3), wherein a cavity is provided inside the stethoscope head shell (1), the truncated cone partition (2) is fixedly connected to the bottom of the cavity, and the eardrum (3) is fixedly connected to the bottom of the truncated cone partition (2), wherein the stethoscope head shell (1) is provided with a cavity, the bottom of the cavity is fixedly connected to the eardrum (3), and the stethoscope head shell (1) is provided with a cavity, the bottom of the cavity is fixedly connected to the eardrum (3), and the stethoscope head shell (1) is provided with a cavity, wherein the stethoscope head shell (1) is provided with a cavity, the bottom of the cavity is fixedly connected to the eardrum (3), and ... The invention also comprises a sound sensor (4), an amplifier (5), a filter (6), a noise reducer (7), a mounting plate (8), a digital processor (9), a power supply compartment (10), a battery (11), a wire (12), a display (19), a connecting wire (20) and an earphone (21); a mounting plate (8) is provided on the top of the truncated cone partition (2); the mounting plate (8) is fixedly connected to the earphone housing (1); a sound sensor (4), an amplifier (5), a filter (6) and a noise reducer (7) are fixedly connected to the bottom of the mounting plate (8); the sound sensor (4) is detachably connected to the truncated cone partition (2); the sound sensor (4), the amplifier (5), the filter (6) and the noise reducer (7) are electrically connected in sequence; A digital processor (9) is fixedly connected to the top of the mounting plate (8), and the digital processor (9) is electrically connected to the noise reducer (7). A power supply compartment (10) is fixedly connected to the top of the cavity of the earphone housing (1), and a battery (11) is fixedly connected to the upper part of the power supply compartment (10). The battery (11) is electrically connected to the sound sensor (4), the amplifier (5), the filter (6), the noise reducer (7) and the digital processor (9). The top of the earphone housing (1) is electrically connected to one end of a wire (12), and the other end of the wire (12) is electrically connected to a display (19). The end of the display (19) away from the wire (12) is electrically connected to one end of a connecting wire (20), and the other end of the connecting wire (20) is electrically connected to an earphone (21).

2. An electronic stethoscope with noise reduction function as claimed in claim 1, characterized in that: The display (19) has built-in timing, storage and playback functions.

3. An electronic stethoscope with noise reduction function as claimed in claim 2, characterized in that: It also includes a sound insulation ring (22). The bottom of the earpiece housing (1) is provided with a groove, and the sound insulation ring (22) is fixedly connected in the groove.

4. An electronic stethoscope with noise reduction function as claimed in claim 3, characterized in that: It also includes a rubber sleeve (23), and the bottom of the earphone housing (1) is fixedly connected to the rubber sleeve (23).

5. An electronic stethoscope with noise reduction function as claimed in claim 4, characterized in that: The bottom of the rubber sleeve (23) is provided with an anti-slip protrusion.

6. An electronic stethoscope with noise reduction function as claimed in claim 5, characterized in that: The invention also comprises a wire management box housing (13), a rotating rod (14), a guide rod (15), a spring (16), a clamping plate (17) and a clamping column (18); the wire management box housing (13) is arranged in the middle of the wire (12); the rotating rod (14) is rotatably connected to the middle of the wire management box housing (13); the wire (12) passes through one side of the wire management box housing (13), is wound around the rotating rod (14), and passes through the other side of the wire management box housing (13); The rotating rod (14) is provided with an inner cavity, a guide rod (15) is fixedly connected in the inner cavity, a clamping plate (17) is slidably connected to the middle of the guide rod (15), a spring (16) is provided on the upper part of the clamping plate (17), one end of the spring (16) is fixedly connected to the clamping plate (17), and the other end is fixedly connected to the rotating rod (14), at least four clamping columns (18) are fixedly connected to the upper part of the cable management box housing (13), and the right part of the clamping plate (17) is slidably connected to the clamping column (18).

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