Listening head cover, heart and lung sound stethoscope listening head and stethoscope

Abstract

The utility model relates to the technical field of electronic stethoscopes, in particular to a stethoscope head cover, a heart and lung sound stethoscope head and a stethoscope, the stethoscope head cover is used for being assembled with a diaphragm, the stethoscope head cover is composed of a sleeve and a disc body which are integrally formed, the disc body is annularly arranged on one end portion of the peripheral face of the sleeve, an inner cavity of the sleeve forms a channel of the stethoscope head cover to transmit sound, and the stethoscope head cover is used for being assembled with the diaphragm. A cavity formed after the disc body and the diaphragm are assembled is communicated with the channel; a through hole extending in the axial direction of the sleeve is formed in the sleeve. The through hole is communicated with the cavity of the stethoscope head and the outside, when the diaphragm is suddenly extruded by external force in a supernormal mode, the air pressure in the stethoscope head changes instantaneously, the through hole can quickly relieve pressure, reduce severe fluctuation of the pressure in the stethoscope head and prevent the diaphragm and the sensor from being damaged, and when the external environment air pressure changes, the through hole can balance the air pressure in the cavity and the air pressure outside the cavity. And the auscultation effect is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic stethoscopes, and particularly relates to a listening head cover, a heart and lung sound stethoscope listening head and a stethoscope. Background Art

[0002] A heart and lung sound stethoscope listening head generally includes a listening head cover, a diaphragm and a fixing member, and the diaphragm is fixed to the listening head cover through the fixing member.

[0003] Existing electronic heart and lung sound stethoscope listening heads are usually designed as airtight cavities. When the diaphragm is suddenly extruded by an external force beyond the normal range, the internal air pressure of the listening head will change instantaneously, which easily causes the listening head to deform, the components inside the stethoscope, especially the sensor, to be damaged or the aging to accelerate, affecting the long-term performance and reliability of the stethoscope. Summary of the Utility Model

[0004] The utility model provides a listening head cover, a heart and lung sound stethoscope listening head and a stethoscope, so as to solve the technical problem that when the existing listening head is extruded by an external force beyond the normal range, the listening head is prone to deformation, and the components inside the stethoscope are damaged or the aging is accelerated.

[0005] In order to solve the above technical problem, a listening head cover provided by the utility model adopts the following technical scheme:

[0006] A listening head cover for assembling with a diaphragm, the listening head cover is composed of an integrally formed sleeve and a disc body, the disc body is annularly arranged at one end of the outer peripheral surface of the sleeve, the inner cavity of the sleeve forms a channel of the listening head cover to transmit sound, and the cavity formed after the disc body is assembled with the diaphragm is communicated with the channel; at least one through hole is arranged on the listening head cover to communicate the cavity with the outside.

[0007] By arranging through holes on the listening head cover, the through holes communicate the inner cavity of the listening head with the outside. When the diaphragm is suddenly extruded by an external force beyond the normal range, the internal air pressure of the listening head will change instantaneously. The arrangement of the through holes can quickly relieve pressure, reduce the violent fluctuation of the internal pressure of the listening head, and prevent the diaphragm and the sensor inside the stethoscope from being damaged; when the external environmental air pressure changes, the through holes can balance the air pressure and keep the air pressure inside the cavity consistent with the outside, ensuring that the auscultation effect is not affected.

[0008] As a preferred technical scheme of the utility model, the through holes are arranged on the disc body.

[0009] As a preferred technical scheme of the utility model, the through holes are arranged on the sleeve, and the through holes extend along the axial direction of the sleeve.

[0010] As a preferred technical solution of the present utility model, a groove is provided on the sleeve, and the through hole is arranged in the groove. Since the sleeve is tightly assembled with other components of the stethoscope, a groove needs to be opened on the sleeve, and the through hole is arranged in the groove to ensure that there is a certain gap between the through hole and other components, so that the through hole can communicate the inner and outer sides of the earpiece.

[0011] As a preferred technical solution of the present utility model, the diameter of the through hole is 0.01 - 2 mm. The number and diameter of the through holes should not affect the functions of the earpiece cover and the earpiece.

[0012] As a preferred technical solution of the present utility model, the inner diameter of the cavity does not exceed 50 cm.

[0013] As a preferred technical solution of the present utility model, the outer surface of the connecting part between the sleeve and the disc body is chamfered.

[0014] The present utility model also provides a stethoscope earpiece for cardiopulmonary sound auscultation, including the earpiece cover as described above.

[0015] The present utility model also provides a stethoscope, including the earpiece and the main body as described above. A sensor is provided in the main body. The acoustic wave signal from the earpiece is converted into an electrical signal by the sensor, and then is amplified and processed by the amplifier built in the handheld main body, and then transmitted to devices such as the doctor's ear or computer. The through hole communicates the earpiece cavity with the outside. When the diaphragm is suddenly extruded by an external force beyond normal, the air pressure inside the earpiece will change instantaneously. The setting of the through hole can quickly relieve the pressure, reduce the violent fluctuation of the internal pressure of the earpiece, and prevent the diaphragm and the sensor from being damaged. When the external environmental air pressure changes, the through hole can help balance the air pressure between the inside and outside of the earpiece, reduce the acoustic wave distortion caused by the air pressure difference, ensure that the sensor accurately captures the cardiopulmonary sound of the patient, and make the auscultation effect not affected.

[0016] The beneficial effects are:

[0017] By providing a through hole in the earpiece cover of the present utility model, the through hole communicates the earpiece cavity with the outside. When the diaphragm is suddenly extruded by an external force beyond normal, the air pressure inside the earpiece will change instantaneously. The setting of the through hole can quickly relieve the pressure, reduce the violent fluctuation of the internal pressure of the earpiece, so as to achieve the purpose of protecting the diaphragm and the sensor inside the stethoscope. When the external environmental air pressure changes, the through hole can also balance the air pressure inside and outside the earpiece, keep the air pressure inside the earpiece cavity consistent with the outside, and ensure that the auscultation effect is not affected. Description of the Drawings

[0018] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features, and advantages of the exemplary embodiments of the present utility model will become readily understandable. In the drawings, several embodiments of the present utility model are shown in an exemplary rather than restrictive manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0019] Figure 1 is a schematic structure diagram of the listening hood of the present utility model Figure 1 ;

[0020] Figure 2 is a schematic structure diagram of the listening hood of the present utility model Figure 2 ;

[0021] Figure 3 is a top view of the listening hood of the present utility model;

[0022] Figure 4 is Figure 3 a sectional view along the A-A direction.

[0023] Explanation of reference numerals:

[0024] 1, sleeve; 11, through hole; 12, groove; 2, disc body; 3, channel; 4, cavity. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Those skilled in the art should know that the embodiments described below are a part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present utility model.

[0026] The quantity of any element in the drawings is for illustration rather than limitation, and any naming is only for distinction and does not have any limiting meaning.

[0027] Next, with reference to several representative embodiments of the present utility model, the principles and spirits of the present utility model will be elaborated in detail.

[0028] In order to solve the technical problem that the existing listening head cannot automatically adjust the pressure difference between the inside and outside of the listening head, the inventor opened a through hole 11 communicating the inside and outside of the listening head on the listening hood to ensure that the air pressure in the inner cavity 4 of the listening head is consistent with the external air pressure. The present utility model adopts the following technical solutions:

[0029] Such as Figures 1-4As shown in the figure, a listening hood is used for assembling with a diaphragm. The listening hood is composed of a sleeve 1 and a disc body 2. The sleeve 1 and the disc body 2 are integrally formed. The inner cavity of the sleeve 1 forms a channel 3 of the listening hood to transmit sound. The disc body 2 is arranged around one end of the outer peripheral surface of the sleeve 1. The thickness of the disc body 2 is less than the height of the sleeve 1. The outer surface of the connecting part of the sleeve 1 and the disc body 2 is chamfered. The cavity 4 formed after the disc body 2 is assembled with the diaphragm is communicated with the channel 3. A groove 12 is provided on the sleeve 1, and a through hole 11 is provided in the groove 12. The through hole 11 extends along the axial direction of the sleeve 1, and the through hole 11 communicates the cavity 4 with the outside of the listening head.

[0030] When the sleeve 1 is assembled with other components of the stethoscope, the sleeve 1 and other components are assembled with a clearance, then the groove 12 can be omitted and the through hole 11 can be provided on the sleeve 1.

[0031] In other embodiments, the through hole 11 can also be provided at any position on the listening hood that can communicate the cavity with the outside, such as on the disc body. Of course, the number of through holes can also be set to two, three, four or even more.

[0032] In other embodiments, the outer surface of the connecting part of the sleeve 1 and the disc body 2 may not be chamfered.

[0033] As Figure 2 、 4 shown, a ring groove is provided on the inner side of the disc body 2. The ring groove is used for fitting and installing with an elastic sealing ring. When the diaphragm closes the opening of the disc body 2, the diaphragm will press the elastic sealing ring, so that the elastic sealing ring can better contact the diaphragm, so that the diaphragm can be fully sealed at the opening position of the disc body 2.

[0034] As Figure 2 、 4 shown, an assembly groove is provided on the outer edge of the disc body 2. The assembly groove is used for cooperating with a fixing member to fix the diaphragm at the opening of the disc body 2.

[0035] The diameter of the through hole 11 is 0.01 - 2 mm. The inner diameter of the cavity 4 (i.e., the inner diameter of the ring groove) does not exceed 50 cm. The outer diameter of the sleeve 1 is 18 - 24 cm, and the inner diameter of the sleeve 1 is 15 - 20 cm.

[0036] In this example, the diameter of the through hole 11 is 1 mm, the maximum inner diameter of the cavity 4 is 40 cm, the outer diameter of the sleeve 1 is 20 cm, and the inner diameter of the sleeve 1 is 15 cm. Of course, in other embodiments, the diameter of the through hole 11 can also be 0.5, 0.8, 1.5, 1.8 mm and other values, and the maximum inner diameter of the cavity 4 can be 35 cm / 45 cm

[0037] Obviously, this embodiment also provides a stethoscope chestpiece, which includes the above-mentioned chestpiece cover, diaphragm and fixing member. The fixing member is clamped at the assembly groove on the outer edge of the chestpiece cover, and the diaphragm is fixed at the opening of the chestpiece cover. Since this is prior art, it will not be elaborated in this embodiment.

[0038] Obviously, this embodiment also provides a stethoscope, which includes the above-mentioned chestpiece and a main body. The main body is threadedly connected to the chestpiece. One end of the main body is provided with an external thread, and the inner side of the sleeve 1 is provided with an internal thread that cooperates with the external thread for installation. A sensor is provided on one side of the main body close to the chestpiece. When the diaphragm is suddenly extruded by an external force beyond normal, the through hole 11 can reduce the drastic change in the air pressure inside the chestpiece, thereby protecting the sensor from damage.

[0039] Of course, in other embodiments, the chestpiece and the main body can also be connected in other ways, such as in the form of a snap. Of course, the chestpiece and the main body can also be integrally formed, and even the chestpiece can be set as a hole that can be opened and closed.

[0040] When the diaphragm is suddenly extruded by an external force beyond normal, the internal air pressure will change instantaneously. The existence of the through hole 11 can quickly relieve the pressure, reduce the drastic fluctuation of the internal pressure of the chestpiece, thereby reducing the impact on the sensor and preventing the diaphragm from being overly deformed, resulting in damage to the diaphragm or affecting its performance. When the external environmental air pressure changes, the through hole 11 can help balance the air pressure between the inside of the chestpiece and the external environment, reduce the sound wave distortion caused by the air pressure difference, and ensure that the auscultation effect is not affected. When using an electronic stethoscope for clinical diagnosis, the through hole 11 can ensure that the sensor accurately captures the heart and lung sounds of the patient, while protecting the sensor from external vibrations.

[0041] Based on the above description of this specification, those skilled in the art can also understand the following terms used. For example, terms indicating orientation or positional relationship such as "inner", "outer", "axial", "circumferential", "height", "thickness", etc. are based on the orientation or positional relationship shown in the drawings of this specification. They are only for the purpose of facilitating the description of the solution of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the device or component involved must have the specific orientation, be constructed and operated in the specific orientation. Therefore, the above orientation or positional relationship terms cannot be understood or interpreted as a limitation to the solution of the present invention.

Claims

1. A head cover for assembling with a diaphragm, characterized in that: The head cover is composed of an integrally formed sleeve (1) and a disc (2); the disc (2) is arranged around one end of the outer peripheral surface of the sleeve (1); the inner cavity of the sleeve (1) constitutes a channel (3) of the head cover to transmit sound; a cavity (4) formed after the disc (2) and the diaphragm are assembled is connected to the channel (3); and at least one through hole (11) is provided on the head cover to connect the cavity (4) with the outside.

2. A head cover as claimed in claim 1, characterized in that: The through hole (11) is arranged on the disk body (2).

3. A head cover as claimed in claim 1, characterized in that: The through hole (11) is arranged on the sleeve (1), and the through hole (11) extends along the axial direction of the sleeve (1).

4. A head cover as claimed in claim 3, characterized in that: The sleeve (1) is provided with a groove (12), and the through hole (11) is arranged in the groove (12).

5. A head cover according to any one of claims 1 to 4, characterized in that: The diameter of the through hole (11) is 0.01-2 mm.

6. A head cover as claimed in claim 5, characterized in that: The inner diameter of the cavity (4) does not exceed 50 cm.

7. A head cover as claimed in claim 6, characterized in that: The outer surface of the connection portion between the sleeve (1) and the disc body (2) is rounded.

8. A stethoscope head for auscultating heart and lung sounds, characterized in that: The present invention comprises a head cover as claimed in claim 6 or 7.

9. A stethoscope, characterized in that: The device comprises a stethoscope head and a host as described in claim 8.

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