Bionic worm type detachable multiband auscultation pickup device

Abstract

The utility model discloses a bionic worm type detachable multiband auscultation pickup device which comprises a worm body, a sound transmission cavity is formed in the expansion end of the worm body, the bionic worm type detachable multiband auscultation pickup device further comprises a pickup column, and the contraction end of the pickup column is detachably installed at the contraction end of the worm body. A cavity between the sound pickup column and the inner wall of the worm body forms a resonance cavity, the expansion end of the resonance cavity is communicated with the sound transmission cavity, the cavity body of the resonance cavity is in smooth transition along the spiral line from the expansion end to the contraction end and is gradually reduced, and the outer wall of the sound pickup column is sequentially provided with a high-frequency sound wave band, an intermediate-frequency sound wave band and a low-frequency sound wave band. The high-frequency sound wave band is close to the expansion end of the pickup column; and each section is correspondingly provided with a sound pickup. The pickup column and the volute are of a detachable structure, so that a pickup or an infrasonic wave sensor on the pickup column can be replaced conveniently. According to the stethoscope, the three-section or multi-band pickup or the pickup and the infrasonic wave sensor are arranged on the pickup column, so that pickup can be carried out on different bands, and the upper and lower limits of pickup of the stethoscope are expanded.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, relates to a stethoscope, and in particular to a bionic snail-type detachable multi-band auscultation sound pickup device. Background Art

[0002] The traditional stethoscope uses a single microphone as the noise pickup unit. Due to its limited frequency reception range, the quality of components, environmental noise, and the inevitable electronic self-excitation between the microphones will cause the picked-up noise signal to drift.

[0003] The prior art discloses a pickup with noise reduction effect, including a pickup body and a power connection line, the power connection line is fixedly mounted on the outer end of the pickup body, the lower end of the pickup body is provided with a placement and mounting seat, the peripheral side of the pickup body is provided with a mask fixing ring, the upper end of the mask fixing ring is provided with a windproof cotton cover, and the power connection line is electrically connected to an external device. The scheme is provided with a mask fixing ring structure, so that the windproof cotton cover is effectively sleeved on the pickup body, and the windproof cotton cover is easy to disassemble and clean, and the windproof cotton cover plays a good role in wind noise reduction, so that the sound is clearer when picking up, and the interference of external wind noise is effectively avoided.

[0004] However, the stethoscopes in the prior art cannot be disassembled, are difficult to repair and replace, and the tasting range is within a certain band, making it difficult to achieve full-band sound pickup. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a bionic snail-type detachable multi-band stethoscope pickup device to solve the technical problem that the existing stethoscope pickup devices are difficult to balance the convenience of replacement and maintenance and the wide range of sound pickup.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A bionic snail-type detachable multi-band stethoscope sound pickup device comprises a snail body, wherein the expansion end of the snail body is open and the contraction end is closed, the expansion end of the snail body has a sound transmission cavity inside, and also comprises a sound pickup column, the contraction end of the sound pickup column is detachably mounted on the contraction end of the snail body, and the expansion end of the sound pickup column extends into the sound transmission cavity.

[0008] The cavity between the sound pickup column and the inner wall of the snail body forms a resonance cavity, the expansion end of the resonance cavity is connected to the sound transmission cavity, and the resonance cavity is arranged in the snail body along the spiral line of the snail body. The cavity of the resonance cavity smoothly transitions from the expansion end to the contraction end along the spiral line and gradually decreases, and the contraction end of the resonance cavity contracts to the contraction end of the snail body.

[0009] A high-frequency sound wave band, a medium-frequency sound wave band and a low-frequency sound wave band are sequentially arranged on the outer wall of the pickup column, and the high-frequency sound wave band is close to the expansion end of the pickup column; one or more high-frequency pickups are installed on the high-frequency sound wave band, one or more medium-frequency pickups are installed on the medium-frequency sound wave band, and one or more low-frequency pickups are installed on the low-frequency sound wave band.

[0010] The utility model also has the following technical features:

[0011] The high-frequency pickup, the intermediate-frequency pickup and the low-frequency pickup are all arranged on the pickup column along the pickup spiral line; the pickup spiral line corresponds to the spiral line of the spiral body.

[0012] The axial height of the high-frequency sound wave band is greater than the axial height of the medium-frequency sound wave band, and the axial height of the medium-frequency sound wave band is greater than the axial height of the low-frequency sound wave band.

[0013] A high-frequency infrasound band and a low-frequency infrasound band are sequentially arranged on the outer wall of the sound pickup column; the high-frequency infrasound band is connected to the low-frequency infrasound band, and the low-frequency infrasound band is close to the contraction end of the sound pickup column; one or more high-frequency infrasound sensors are installed on the high-frequency infrasound band, and one or more low-frequency infrasound sensors are installed on the low-frequency infrasound band.

[0014] The high-frequency pickup, the intermediate-frequency pickup, the low-frequency pickup, the high-frequency infrasound sensor and the low-frequency infrasound sensor are all arranged on the pickup column along the pickup spiral line; the pickup spiral line corresponds to the spiral line of the spiral body.

[0015] The axial height of the low-frequency sound wave band is greater than the axial height of the high-frequency infrasound wave band, and the axial height of the high-frequency infrasound wave band is greater than the axial height of the low-frequency infrasound wave band.

[0016] A windproof and noise-reducing cotton cover is detachably mounted on the open expansion end of the volute.

[0017] The sound pickup column is in the shape of a conical column, and the outer diameter of the cross section of the expansion end of the sound pickup column is smaller than the outer diameter of the cross section of the contraction end.

[0018] The end surface of the expanded end of the sound pickup column is arranged parallel to the end surface of the expanded end of the snail body.

[0019] A screw is fixedly arranged on the contraction end of the sound pickup column, and a mounting hole is opened at the contraction end of the snail body. The screw passes through the mounting hole and cooperates with a nut to realize the detachable mounting of the sound pickup column on the snail body.

[0020] Compared with the prior art, the utility model has the following technical effects:

[0021] (I) The sound pickup column and the volute in the present invention are of a detachable structure, which can facilitate the replacement of the sound pickup or infrasonic sensor on the sound pickup column, thereby avoiding the problem of the entire sound pickup device being scrapped when a problem occurs with a sound pickup or infrasonic sensor, thereby increasing the reusability of the sound pickup device.

[0022] (II) The pickup column in the utility model is provided with three sections or segments of multi-band pickups or pickups and infrasonic sensors, which can pick up sounds in different bands, thereby expanding the upper and lower limits of the stethoscope's sound pickup, that is, the wide range of sound pickup is significantly improved, further increasing the scope of use of the stethoscope.

[0023] (III) The volute in the present invention adopts a bionic structural design, imitating the structure of the biological cochlea, so that the resonance cavity can resonate sound waves or infrasound waves of different frequencies at different positions, which is convenient for the corresponding microphone or infrasound sensor to collect.

[0024] (IV) The windproof and noise-reducing cotton cover in the utility model plays a good role in reducing wind noise, so that the sound is clearer when picking up, and the interference of external wind noise is effectively avoided. The windproof and noise-reducing cotton cover in the utility model is easy to disassemble and clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall internal structure of a bionic snail-type detachable multi-band stethoscope pickup device.

[0026] Figure 2 It is a schematic diagram of the overall structure of the pickup column.

[0027] Figure 3 This is a schematic diagram of the external front view structure of a bionic snail-type detachable multi-band stethoscope pickup device.

[0028] Figure 4 This is a schematic diagram of the external top-down structure of a bionic snail-type detachable multi-band stethoscope pickup device.

[0029] The meanings of the numbers in the figure are: 1- snail body, 2- sound transmission cavity, 3- sound pickup column, 4- resonance cavity, 5- high frequency pickup, 6- medium frequency pickup, 7- low frequency pickup, 8- high frequency infrasonic wave sensor, 9- low frequency infrasonic wave sensor, 10- windproof and noise reduction cotton cover, 11- screw, 12- mounting hole, 13- nut.

[0030] 301-high frequency sound wave band, 302-medium frequency sound wave band, 303-low frequency sound wave band, 304-high frequency infrasound wave band, 305-low frequency infrasound wave band.

[0031] The specific contents of the utility model are further explained in detail below in conjunction with the embodiments. DETAILED DESCRIPTION

[0032] It should be noted that, unless otherwise specified, all components and equipment in the present invention are components and equipment known in the prior art.

[0033] In accordance with the above technical solution, specific embodiments of the present utility model are given below. It should be noted that the present utility model is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solution of this application fall within the protection scope of the present utility model.

[0034] Example:

[0035] This embodiment provides a bionic snail-type detachable multi-band auscultation pickup device, such as Figure 1 As shown, it includes a snail body 1, the expansion end of the snail body is open and the contraction end is closed, the interior of the expansion end of the snail body 1 is a sound transmission cavity 2, and also includes a sound pickup column 3, the contraction end of the sound pickup column 3 is detachably installed on the contraction end of the snail body 1, and the expansion end of the sound pickup column 3 extends into the sound transmission cavity 2.

[0036] like Figure 1 As shown, the cavity between the sound pickup column 3 and the inner wall of the snail body 1 forms a resonance cavity 4, the expansion end of the resonance cavity 4 is connected to the sound transmission cavity 2, and the resonance cavity 4 is arranged in the snail body 1 along the spiral line of the snail body. The cavity of the resonance cavity 4 smoothly transitions from the expansion end to the contraction end along the spiral line and gradually decreases, and the contraction end of the resonance cavity 4 contracts to the contraction end of the snail body 1.

[0037] like Figure 2 As shown, a high-frequency sound band 301, a medium-frequency sound band 302 and a low-frequency sound band 303 are sequentially arranged on the outer wall of the sound pickup column 3, and the high-frequency sound band 301 is close to the expansion end of the sound pickup column 3; one or more high-frequency pickups 5 are installed on the high-frequency sound band 301, one or more medium-frequency pickups 6 are installed on the medium-frequency sound band 302, and one or more low-frequency pickups 7 are installed on the low-frequency sound band 303.

[0038] As a preferred solution of this embodiment, Figure 2 As shown, a high-frequency infrasound band 304 and a low-frequency infrasound band 305 are sequentially arranged on the outer wall of the sound pickup column 3; the high-frequency infrasound band 304 is connected to the low-frequency infrasound band 303, and the low-frequency infrasound band 305 is close to the contraction end of the sound pickup column 3; one or more high-frequency infrasound sensors 8 are installed on the high-frequency infrasound band 304, and one or more low-frequency infrasound sensors 9 are installed on the low-frequency infrasound band 305.

[0039] As a preferred solution of this embodiment, Figure 2As shown, the high-frequency pickup 5, the intermediate-frequency pickup 6, the low-frequency pickup 7, the high-frequency infrasonic wave sensor 8 and the low-frequency infrasonic wave sensor 9 are all arranged on the pickup column 3 along the pickup spiral line; the pickup spiral line corresponds to the spiral line of the spiral body, so that different types of pickups or infrasonic wave sensors can collect the corresponding bands.

[0040] As a preferred solution of this embodiment, Figure 2 As shown, the axial height of the high-frequency sound wave band 301 is greater than the axial height of the medium-frequency sound wave band 302, and the axial height of the medium-frequency sound wave band 302 is greater than the axial height of the low-frequency sound wave band 303. The axial height of the low-frequency sound wave band 303 is greater than the axial height of the high-frequency infrasound wave band 304, and the axial height of the high-frequency infrasound wave band 304 is greater than the axial height of the low-frequency infrasound wave band 305. It is also convenient for different types of pickups or infrasound wave sensors to collect the corresponding bands.

[0041] In this embodiment, Figure 3 and Figure 4 As shown, the snail body 1 adopts a known bionic snail shell, and the spiral line of the snail body 1 is also the known rotation center line of the snail body 1. By imitating the structure of the biological cochlea, the resonance cavity can resonate sound waves or infrasound waves of different frequencies at different positions, which is convenient for the corresponding pickup or infrasound sensor to collect.

[0042] In this embodiment, the high frequency pickup 5, the intermediate frequency pickup 6, the low frequency pickup 7, the high frequency infrasonic wave sensor 8 and the low frequency infrasonic wave sensor 9 are all known and commonly used pickups and infrasonic wave sensors.

[0043] In this embodiment, the division of high-frequency sound waves, medium-frequency sound waves, low-frequency sound waves, high-frequency infrasound waves and low-frequency sound waves adopts the commonly used band division known in the art. Preferably, the frequency range of high-frequency sound waves is 2500Hz to 20kHz; the frequency range of medium-frequency sound waves is 160Hz to 2500Hz; the frequency range of low-frequency sound waves is 20Hz to 160Hz; the frequency range of high-frequency infrasound waves is 5Hz to 20Hz; and the frequency range of low-frequency sound waves is 1Hz to 5Hz.

[0044] As a preferred solution of this embodiment, Figure 3 and Figure 4 As shown, a windproof and noise-reducing cotton cover 10 is detachably mounted on the open expansion end of the snail body 1. The windproof and noise-reducing cotton cover 10 plays a good role in reducing wind noise, so that the sound is clearer when picking up, and the interference of external wind noise is effectively avoided. The windproof and noise-reducing cotton cover 10 is easy to disassemble and clean.

[0045] As a preferred solution of this embodiment, Figure 2As shown, the sound pickup column 3 is in the shape of a conical column, and the outer diameter of the cross section of the expansion end of the sound pickup column 3 is smaller than the outer diameter of the cross section of the contraction end. Ensure that the gap between the sound pickup column 3 and the inner wall of the volute 1 is as small as possible without interference, and ensure that the resonance cavity 4 is as close as possible.

[0046] As a preferred solution of this embodiment, Figure 2 As shown, the end surface of the expanded end of the sound pickup column 3 is arranged parallel to the end surface of the expanded end of the volute 1 , so that the sound pickup column 3 is located at the center of the volute 1 .

[0047] As a preferred solution of this embodiment, Figure 1 As shown, a screw 11 is fixedly arranged on the contraction end of the sound pickup column 3, and a mounting hole 12 is opened at the contraction end of the snail body 1. The screw 11 passes through the mounting hole 12 and cooperates with the nut 13 to realize the detachable installation of the sound pickup column 3 on the snail body 1. The specific detachable assembly method can be adjusted according to actual needs.

[0048] When the bionic snail-type detachable multi-band auscultation pickup device of the utility model is in use, sound waves and infrasound waves enter the sound transmission cavity 2 through the expansion end of the snail body 1, and enter the resonance cavity 4 through the sound transmission cavity 2. The sound waves and infrasound waves resonate with sound waves or infrasound waves of different bands at different positions in the resonance cavity 4, and are collected by the high-frequency pickup 5, the intermediate-frequency pickup 6, the low-frequency pickup 7, the high-frequency infrasound sensor 8, and the low-frequency infrasound sensor 9 on the pickup column 3 at the corresponding position. The high-frequency pickup 5 is used to collect high-frequency sound waves in the resonance cavity 4, the intermediate-frequency pickup 6 is used to collect intermediate-frequency sound waves in the resonance cavity 4, the low-frequency pickup 7 is used to collect low-frequency sound waves in the resonance cavity 4, the high-frequency infrasound sensor 8 is used to collect high-frequency infrasound waves in the resonance cavity 4, and the low-frequency infrasound sensor 9 is used to collect low-frequency infrasound waves in the resonance cavity 4. The high frequency pickup 5 , the intermediate frequency pickup 6 , the low frequency pickup 7 , the high frequency infrasound wave sensor 8 and the low frequency infrasound wave sensor 9 do not contact the inner wall of the resonance cavity 4 during the disassembly, installation and use of the pickup column 3 .

Claims

1. A bionic snail-type detachable multi-band stethoscope pickup device, comprising a snail body (1), wherein the expansion end of the snail body is open and the contraction end is closed, and the expansion end of the snail body (1) is inside a sound transmission cavity (2), characterized in that: It also includes a sound pickup column (3), the contraction end of the sound pickup column (3) is detachably mounted on the contraction end of the snail body (1), and the expansion end of the sound pickup column (3) extends into the sound transmission cavity (2); The cavity between the sound pickup column (3) and the inner wall of the snail body (1) forms a resonance cavity (4); the expansion end of the resonance cavity (4) is connected to the sound transmission cavity (2); the resonance cavity (4) is arranged in the snail body (1) along the spiral line of the snail body; the cavity of the resonance cavity (4) smoothly transitions from the expansion end to the contraction end along the spiral line and gradually decreases; the contraction end of the resonance cavity (4) contracts to the contraction end of the snail body (1); A high-frequency sound wave band (301), a medium-frequency sound wave band (302) and a low-frequency sound wave band (303) are sequentially arranged on the outer wall of the sound pickup column (3), wherein the high-frequency sound wave band (301) is close to the expansion end of the sound pickup column (3); one or more high-frequency pickups (5) are installed on the high-frequency sound wave band (301), one or more medium-frequency pickups (6) are installed on the medium-frequency sound wave band (302), and one or more low-frequency pickups (7) are installed on the low-frequency sound wave band (303).

2. The bionic snail-type detachable multi-band stethoscope pickup device according to claim 1, characterized in that: The high-frequency pickup (5), the intermediate-frequency pickup (6) and the low-frequency pickup (7) are all arranged on the pickup column (3) along a pickup spiral line; the pickup spiral line corresponds to the spiral line of the spiral body.

3. The bionic snail-type detachable multi-band stethoscope pickup device according to claim 1, characterized in that: The axial height of the high-frequency sound wave band (301) is greater than the axial height of the medium-frequency sound wave band (302), and the axial height of the medium-frequency sound wave band (302) is greater than the axial height of the low-frequency sound wave band (303).

4. The bionic snail-type detachable multi-band stethoscope pickup device according to claim 1, characterized in that: A high-frequency infrasound band (304) and a low-frequency infrasound band (305) are sequentially arranged on the outer wall of the sound pickup column (3); the high-frequency infrasound band (304) is connected to the low-frequency infrasound band (303), and the low-frequency infrasound band (305) is close to the contraction end of the sound pickup column (3); one or more high-frequency infrasound sensors (8) are installed on the high-frequency infrasound band (304), and one or more low-frequency infrasound sensors (9) are installed on the low-frequency infrasound band (305).

5. The bionic snail-type detachable multi-band stethoscope pickup device as claimed in claim 4, characterized in that: The high-frequency pickup (5), the intermediate-frequency pickup (6), the low-frequency pickup (7), the high-frequency infrasound wave sensor (8) and the low-frequency infrasound wave sensor (9) are all arranged on the sound pickup column (3) along a sound pickup spiral line; the sound pickup spiral line corresponds to the spiral line of the spiral body.

6. The bionic snail-type detachable multi-band stethoscope pickup device according to claim 4, characterized in that: The axial height of the low-frequency sound band (303) is greater than the axial height of the high-frequency infrasound band (304), and the axial height of the high-frequency infrasound band (304) is greater than the axial height of the low-frequency infrasound band (305).

7. The bionic snail-type detachable multi-band stethoscope pickup device according to claim 1, characterized in that: A windproof and noise-reducing cotton cover (10) is detachably mounted on the open expansion end of the volute (1).

8. The bionic snail-type detachable multi-band stethoscope pickup device according to claim 1, characterized in that: The sound pickup column (3) is in the shape of a conical column, and the cross-sectional outer diameter of the expansion end of the sound pickup column (3) is smaller than the cross-sectional outer diameter of the contraction end.

9. The bionic snail-type detachable multi-band stethoscope pickup device according to claim 1, characterized in that: The end surface of the expanded end of the sound pickup column (3) is arranged parallel to the end surface of the expanded end of the snail body (1).

10. The bionic snail-type detachable multi-band stethoscope pickup device according to claim 1, characterized in that: A screw rod (11) is fixedly arranged on the contraction end of the sound pickup column (3), and a mounting hole (12) is opened on the contraction end of the volute (1). The screw rod (11) passes through the mounting hole (12) and cooperates with a nut (13) to realize the detachable installation of the sound pickup column (3) on the volute (1).

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