Speaking valve

Abstract

The invention provides a speaking valve which comprises a frame and a valve, the frame comprises a cavity, a baffle located at one end of the cavity and a connector located at the other end of the cavity, the baffle is provided with an assembly hole and an air inlet located around the assembly hole, and the valve is located on one side of the air inlet and used for blocking the air inlet during expiration. The valve comprises a buckle piece and buckle blocks located at the two ends of the buckle piece, the buckle piece penetrates through the assembling hole, the baffle is located between the two buckle blocks, in the natural state, the distance h2 between the two buckle blocks is smaller than the length h1 of the assembling hole, and the diameter d2 of the buckle piece is larger than the diameter d1 of the assembling hole. According to the valve fixing device, the valve is buckled and fixed to the baffle through the buckling piece, so that stable connection of the valve and the baffle is achieved, in the natural state, the distance between the two buckling blocks is smaller than the length of the assembling hole, the diameter of the buckling piece is larger than the diameter of the assembling hole, and therefore the valve is effectively limited in the axial direction and the radial direction.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a speaking valve. Background Art

[0002] With the improvement of people's living standards and changes in dietary structure, various diseases are gradually increasing, including lung-related diseases. When patients suffer from lung-related diseases, they usually experience breathing difficulties, and tracheotomy is needed to relieve them and help them breathe.

[0003] Traditional tracheotomy is mainly to cut the trachea of ​​the patient's neck and insert a tracheotomy tube into the trachea to achieve the purpose of breathing for the patient. However, the patient is usually unable to speak after tracheotomy. In order to achieve the purpose of speaking for the patient, a speaking valve can be installed at the end of the tracheotomy tube to help the patient speak.

[0004] Existing speech valves usually include a housing and a valve disposed in the housing. The valve is used to achieve one-way flow of gas in the housing, that is, the valve opens during inhalation to allow external gas to enter the housing, and closes during exhalation to prevent gas in the housing from being discharged. However, the fixing effect of the existing valve and the housing is not ideal, and the valve is easily loosened, thereby affecting the opening and closing of the valve and causing the speech valve to fail. Summary of the invention

[0005] In order to overcome the above technical problems, the present invention provides a speaking valve that can solve the above technical problems.

[0006] As conceived above, the technical solution adopted by the present invention is:

[0007] A speaking valve comprises a frame and a valve, wherein the frame comprises a cavity, a baffle located at one end of the cavity, and a connecting port located at the other end of the cavity, the baffle being provided with an assembly hole and an air inlet located around the assembly hole, the valve being located on one side of the air inlet hole for blocking the air inlet hole during exhalation, the valve comprising a snap-fit ​​member and snap-fit ​​blocks located at both ends of the snap-fit ​​member, the snap-fit ​​member passing through the assembly hole, the baffle being located between the two snap-fit ​​blocks, and in a natural state, a distance h2 between the two snap-fit ​​blocks being less than a length h1 of the assembly hole, and a diameter d2 of the snap-fit ​​member being greater than a diameter d1 of the assembly hole.

[0008] Preferably, a first adhesive layer is provided between the outer circumferential surface of the buckle and the inner circumferential surface of the assembly hole.

[0009] Preferably, a second adhesive layer is provided between the buckle block and the end surface of the baffle.

[0010] Preferably, the buckle block, the buckle component and the valve are integrally formed; and / or the buckle component, the valve, the frame, the first adhesive layer and the second adhesive layer are made of the same material.

[0011] Preferably, the buckle, the valve, the frame, the first adhesive layer and the second adhesive layer are all made of silicone material.

[0012] Preferably, the valve is located on a side of the baffle close to the connecting port.

[0013] Preferably, in a natural state, the projection of the valve on the baffle covers all the air inlets, and a plurality of cutouts are provided on the edge of the valve, and the projections of the cutouts on the baffle do not overlap with the air inlets.

[0014] Preferably, the air inlet holes are provided in plurality and are arranged at intervals along the circumferential direction.

[0015] Preferably, the air inlet holes are arranged in multiple rows, each row of the air inlet holes is arranged in a circular shape, and the total area of ​​the air inlet holes in any radially outer row is greater than the total area of ​​the air inlet holes in any radially inner row.

[0016] Preferably, the speaking valve also includes a limit block fixed in the connecting port, the limit block is provided with an abutment surface, the baffle includes a connecting surface close to the connecting port, and the distance between the abutment surface and the connecting surface is greater than the radius of the valve; and / or, the speaking valve also includes a three-way pipe, the three-way pipe includes a first port, the first port is accommodated in the connecting port and sealedly connected thereto; and / or, the valve is provided with a plurality of through holes, the projections of the through holes on the baffle do not overlap with the air inlet hole so that the valve blocks the air inlet hole during exhalation, and the maximum distance between the central axis of the through hole and the central axis of the valve is less than the maximum distance between the central axis of the air inlet hole and the central axis of the valve.

[0017] The present invention has at least the following beneficial effects:

[0018] The speaking valve of the present invention is fixed to the baffle by a clip piece, thereby achieving a stable connection between the two. In a natural state, the distance between the two clip blocks is less than the length of the assembly hole and the diameter of the clip piece is greater than the diameter of the assembly hole, thereby effectively limiting the valve in the axial and radial directions, preventing the valve from loosening during use and causing the valve to fail to open and close normally, thereby extending the service life of the speaking valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a front view of an embodiment of a speaking valve of the present invention;

[0020] Figure 2 yes Figure 1 A right side view of the speaking valve of the present invention is shown;

[0021] Figure 3 yes Figure 2 A cross-sectional view along line AA of an embodiment of a speaking valve of the present invention is shown;

[0022] Figure 4 yes Figure 2 A cross-sectional view along line AA of another embodiment of the speaking valve of the present invention is shown;

[0023] Figure 5 yes Figure 3 A cross-sectional view of the frame of the speech valve of the present invention is shown;

[0024] Figure 6 yes Figure 5 A cross-sectional view of a valve of the speaking valve of the present invention is shown;

[0025] Figure 7 yes Figure 6 A bottom view of the valve is shown;

[0026] Figure 8 yes Figure 7 A bottom view of another embodiment of the valve is shown;

[0027] Fig. 9 is an exploded view of the speaking valve and the tracheotomy cannula of the present invention;

[0028] Fig.10 yes Fig. 9 The assembly diagram of the speaking valve and the tracheotomy cannula of the present invention is shown;

[0029] Fig.11 is a cross-sectional view of the speech valve and tracheotomy cannula of the present invention shown in Figure 10;

[0030] Fig.12 is a cross-sectional view of another embodiment of the speaking valve of the present invention;

[0031] Fig.13 is a schematic diagram of another embodiment of the speaking valve of the present invention;

[0032] Fig.14 Fig.13 A schematic diagram of the valve of the speaking valve of the present invention is shown.

[0033] Description of the accompanying drawings: 100-speaking valve; 1-frame; 2-baffle; 21-air inlet; 211-connecting surface; 22-assembly hole; 3-cavity; 4-connecting port; 5-valve; 51-fastener; 52-fastener block; 53-incision; 54-through hole; 6-limiting block; 61-abutment surface; 7-first adhesive layer; 8-second adhesive layer; 9-tee pipe; 91-first port; 92-second port; 93-third port; 200-tracheotomy cannula. DETAILED DESCRIPTION

[0034] The following is a clear and complete description of the speech valve provided by the present invention in conjunction with the accompanying drawings. It is understood that the described embodiments are only some embodiments of the present invention, not all embodiments, and the present invention can be implemented in many other ways than those described herein.

[0035] Unless otherwise defined, all technical terms and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs. The terms used in this specification are only for describing specific embodiments and are not intended to limit the present invention.

[0036] It should be noted that all directional indications in the embodiments of this specification are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this specification, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] The technical solutions of the various embodiments of the present invention may be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in the field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] In this specification, the axial direction refers to the direction parallel to the line connecting the distal center and the proximal center of the component; the radial direction refers to the direction perpendicular to the axial direction.

[0040] In one embodiment, the speech valve 100 of the present invention comprises a frame 1 and a valve 5, wherein the frame 1 comprises a cavity 3, a baffle 2 at one end of the cavity 3, and a connection port 4 at the other end of the cavity 3. Figures 1 to 3 As shown,

[0041] Preferably, the frame 1 may be a cylinder, a cuboid or other geometric shapes, etc., which are not specifically limited here.

[0042] More preferably, the frame 1 can be made of silicone material, or other materials such as plastic, etc., which are not specifically limited here. Further, the light transmittance of the frame 1 is preferably greater than or equal to 85%, so as to facilitate observation of its internal conditions, such as whether there is dirt, blockage, etc. More preferably, the light transmittance of the frame 1 is 99%, which further improves the convenience of observing its internal conditions.

[0043] More preferably, the valve 5 is disposed in the frame 1, and the valve 5 is used to realize one-way flow of gas in the frame 1, that is, during inhalation, the external gas flows into the frame 1 and then flows into the tracheostomy tube 200, while during exhalation, the gas in the frame 1 cannot be discharged to the outside of the frame 1, thereby realizing the function of a speaking valve.

[0044] It should be noted that the valve 5 can be in a planar shape or in an arcuate shape, etc. Its specific shape can be set as required and is not specifically limited here.

[0045] Preferably, the cavity 3 is formed in the frame 1 to achieve gas circulation in the cavity 3. The cavity 3 may be cylindrical, rectangular, conical, or a combination of multiple shapes, which is not specifically limited here.

[0046] Further preferably, the baffle 2 is arranged at one end of the cavity 3 in the length direction, and the baffle 2 is fixedly connected to the inner circumference of the cavity 3 so as to fix the baffle 2 to the end of the cavity 3 , and the baffle 2 is used to block the end of the cavity 3 .

[0047] Furthermore, the connection port 4 is disposed at the other end of the cavity 3 in the length direction, and the connection port 4 is communicated with the interior of the cavity 3 .

[0048] Furthermore, the connection port 4 can be a cylinder, a cuboid, a cone, etc. The specific shape can be set as needed and is not specifically limited here.

[0049] It should be noted that the connection port 4 can be used to connect with the tracheotomy tube 200, such as Fig. 9 As shown in FIG. 10 , the connection port 4 can also be used to connect with the three-way pipe 9, such as Fig.12 No specific limitation is made here.

[0050] Furthermore, when the connecting port 4 is used to connect with the tracheostomy tube 200, when the end of the tracheostomy tube 200 extends into the connecting port 4, the outer circumferential surface of the tracheostomy tube 200 abuts against the inner circumferential surface of the connecting port 4, thereby achieving sealing between the two. In other embodiments, a sealing ring or the like may also be provided between the tracheostomy tube 200 and the connecting port 4 to achieve sealing between the two.

[0051] In one embodiment, the baffle 2 is provided with an assembly hole 22 and an air inlet 21 located around the assembly hole 22, and the valve 5 is located on one side of the air inlet 21 to block the air inlet 21 during exhalation. Figures 1 to 11 shown.

[0052] Preferably, the assembly hole 22 passes through both end surfaces of the baffle 2 in the thickness direction. The assembly hole 22 may be a cylinder, a cuboid, or other geometric bodies, which is not specifically limited here.

[0053] More preferably, the assembly hole 22 is disposed in the central area of ​​the baffle 2 , and may also be disposed in the edge area of ​​the baffle 2 , etc., which is not specifically limited herein. In this embodiment, the assembly hole 22 is disposed in the central area of ​​the baffle 2 .

[0054] More preferably, one or more assembling holes 22 may be provided, which is not specifically limited herein. In the present embodiment, one assembling hole 22 is provided.

[0055] Preferably, the air inlet 21 penetrates both end surfaces of the baffle 2 in the thickness direction, and the air inlet 21 is used to allow external air to enter the interior of the frame 1 through the air inlet 21. The air inlet 21 can be a cylinder, or other geometric shapes such as a cuboid or a cone, which is not specifically limited here.

[0056] Further preferably, the air inlet 21 can be provided with one or more air inlet holes, etc., which can be provided as needed and are not specifically limited here. When multiple air inlet holes 21 are provided, they are arranged circumferentially around the assembly hole 22 at intervals to increase the air inlet area and meet different air inlet requirements. Preferably, the total area of ​​the air inlet holes 21 is greater than 70 square millimeters, more preferably 78 square millimeters, so that the normal air inlet of the patient can be maintained, and even for patients with weak breathing ability, their normal breathing can be guaranteed, and the effect is significant.

[0057] Furthermore, the valve 5 is disposed on a side of the air inlet 21 close to the connecting port 4 , and the valve 5 is fixedly connected to the baffle 2 so as to fix the valve 5 in the cavity 3 .

[0058] Furthermore, during exhalation, the valve 5 adheres to the surface of the baffle 2 and blocks the air inlet 21, thereby blocking the air inlet 21 to prevent the gas in the frame 1 from being discharged from the air inlet 21, thereby achieving one-way flow of gas.

[0059] Furthermore, the valve 5 may be in the shape of a disk, a cuboid, or other geometric shapes, which are not specifically limited herein.

[0060] In one embodiment, the valve 5 includes a buckle 51 and buckle blocks 52 located at both ends of the buckle 51. The buckle 51 passes through the assembly hole 22, and the baffle 2 is located between the two buckle blocks 52. Figures 1 to 11 shown.

[0061] Preferably, the snap member 51 is disposed in the central area of ​​the valve 5 , and may also be disposed in the edge area of ​​the valve 5 , etc. It may be disposed as required and is not specifically limited herein.

[0062] More preferably, the buckle 51 may be a cylinder, a cuboid, or other geometric bodies, and the shape of the buckle 51 matches the shape of the assembly hole 22, which is not specifically limited here.

[0063] More preferably, the fastener 51 passes through the assembly hole 22, and the outer circumferential surface of the fastener 51 abuts against the inner circumferential surface of the assembly hole 22, thereby achieving a stable connection between the two and preventing the fastener 51 from shaking in the radial direction of the assembly hole 22, thereby ensuring that the valve 5 is firmly fixed on the baffle 2.

[0064] Preferably, two snap blocks 52 are provided and are arranged at both ends of the axial direction of the snap member 51. The cross-sectional area of ​​the snap blocks 52 is larger than the cross-sectional area of ​​the snap member 51, so that the snap blocks 52 abut against the end surface of the baffle 2, so as to firmly fix the valve 5 on the baffle 2 and prevent the valve 5 from shaking in the axial direction of the assembly hole 22.

[0065] Further preferably, the buckle block 52 may be a cylinder, a cuboid, an irregular body, etc. The user may configure it as required, and no specific limitation is made here.

[0066] Furthermore, the surface where the buckle block 52 contacts the baffle 2 is a plane, thereby increasing the contact area between the two, which not only ensures the stability of the connection between the two, but also has an effective sealing effect to prevent air leakage.

[0067] In one embodiment, in a natural state, the distance h2 between the two buckle blocks 52 is smaller than the length h1 of the assembly hole 22, and the diameter d2 of the buckle member 51 is larger than the diameter d1 of the assembly hole 22. Figure 5 and Figure 6 shown.

[0068] Preferably, the natural state is a situation where the buckle member 51 and the buckle block 52 are not subjected to force, for example, the buckle member 51 and the buckle block 52 are not assembled to the baffle 2 and no force is applied thereto.

[0069] More preferably, the distance h2 between the two buckle blocks 52 is the distance between the opposite end surfaces of the two buckle blocks 52, such as Figure 6 The length h1 of the assembly hole 22 is the length of the assembly hole 22 along its axial direction, as shown in FIG. Figure 5 By limiting h2 to be smaller than h1, an interference fit between the two can be achieved after the buckle 51 is assembled into the assembly hole 22, so that the buckle 51 will not shake in the axial direction of the assembly hole 22, and the valve 5 is effectively fixed in the axial direction of the assembly hole 22, with a significant stabilization effect.

[0070] Preferably, the diameter d2 of the buckle 51 is the diameter of its outer peripheral surface. Figure 6 The diameter d1 of the assembly hole 22 is the diameter of the inner circumference of the assembly hole 22, as shown Figure 5 By limiting d2 to be greater than d1, the radial position of the buckle 51 is limited after the buckle 51 is assembled into the assembly 22, preventing the buckle 51 and the valve 5 from shaking in the radial direction of the assembly hole 22, and achieving a significant stabilization effect. At the same time, the valve 5 and the baffle 2 have better coaxiality, avoiding the valve 5 from interfering with the inner wall of the frame 1 due to the misalignment, which may cause the valve 5 to fail.

[0071] In one embodiment, a first adhesive layer 7 is provided between the outer circumference of the fastener 51 and the inner circumference of the assembly hole 22. Figure 3 shown.

[0072] Preferably, the first adhesive layer 7 is disposed between the outer circumference of the fastener 51 and the inner circumference of the assembly hole 22, so as to not only achieve a stable connection between the two but also play an effective sealing role to prevent air leakage.

[0073] More preferably, the first adhesive layer 7 may circumferentially cover the entire outer circumference of the fastener 51 , or circumferentially cover part of the outer circumference of the fastener 51 , so as to meet different fixed connection and sealing requirements.

[0074] More preferably, the first adhesive layer 7 may axially cover the entire outer circumference of the fastener 51 , or axially cover a portion of the outer circumference of the fastener 51 , so as to meet different fixed connection and sealing requirements.

[0075] Preferably, the first adhesive layer 7 can be bonded between the outer circumference of the fastener 51 and the inner circumference of the assembly hole 22, so that the connection between the two is more stable and the effect is more ideal.

[0076] In one embodiment, a second adhesive layer 8 is provided between the buckle block 52 and the end surface of the baffle 2. Figure 3 shown.

[0077] Preferably, the second adhesive layer 8 is disposed between the buckle block 52 and the end surface of the baffle 2, so as to not only achieve a stable connection between the two but also play an effective sealing role.

[0078] More preferably, the second adhesive layer 8 is disposed in the entire space or a portion of the space between the buckle block 52 and the end surface of the baffle 2 , so as to meet different requirements.

[0079] More preferably, the second adhesive layer 8 is bonded between the buckle block 52 and the end surface of the baffle 2, so that the connection between the two is more stable and the effect is more ideal.

[0080] In one embodiment, the buckle block 52, the buckle member 51 and the valve 5 are integrally formed. Figures 1 to 11 shown.

[0081] Preferably, the buckle block 52, the buckle member 51 and the valve 5 are integrally formed, which not only simplifies the process but also improves the structural stability and prevents the valve 5 from falling off the baffle 2.

[0082] It should be noted that in other embodiments, the buckle block 52, the buckle member 51 and the valve 5 may also be fixedly connected in other ways, such as bonding, etc., which can be arranged as needed and are not specifically limited here.

[0083] In one embodiment, the buckle 51, the valve 5, the frame 1, the first adhesive layer 7 and the second adhesive layer 8 are made of the same material. Figures 1 to 11 shown.

[0084] Preferably, the snap fastener 51, the valve 5, the frame 1, the first adhesive layer 7 and the second adhesive layer 8 are made of the same material, such as silicone, rubber, etc., so that they are in closer contact and the structural tightness and sealing effect are more ideal.

[0085] More preferably, the fastener 51 and the valve 5 are made of the same material to facilitate fixed connection or integral molding of the two.

[0086] More preferably, the first adhesive layer 7 and the second adhesive layer 8 are made of the same material as the buckle 51 , so as to fix the buckle 51 and the valve 5 more firmly and enhance the sealing effect to prevent air leakage.

[0087] It should be noted that in other embodiments, the buckle 51, the valve 5, the frame 1, the first adhesive layer 7 and the second adhesive layer 8 may also be made of different materials, which can be configured as required and are not specifically limited herein.

[0088] Also preferably, the light transmittance of the valve 5 is lower than that of the frame 1 , so that the opening and closing state of the valve 5 in the frame 1 can be easily observed, thereby improving the convenience of use.

[0089] In one embodiment, the buckle 51, the valve 5, the frame 1, the first adhesive layer 7 and the second adhesive layer 8 are all made of silicone material. Figures 1 to 11 shown.

[0090] Preferably, due to the transparency and high temperature resistance of silicone, when the frame 1 is made of silicone material, it is not only convenient to observe the internal situation, such as whether there is dirt or blockage, but also high temperature disinfection can be achieved, because silicone can withstand high temperatures of up to 180 degrees Celsius for a long time and 220 degrees Celsius for a short time, and will not produce volatile harmful substances.

[0091] More preferably, the valve 5 and the fastener 51 are made of silicone material, which can not only be sterilized at high temperature but also has good resilience, thereby extending the service life of the valve 5.

[0092] More preferably, the first adhesive layer 7 and the second adhesive layer 8 are made of silicone material, so there is no risk of adhesive failure, the fastening is more stable, and the service life is long.

[0093] In one embodiment, the valve 5 is located on a side of the baffle 2 close to the connecting port 4. Figures 1 to 11 shown.

[0094] Preferably, the surface of the baffle 2 close to the connection port 4 is a connection surface 211. Figure 4 As shown, the connection surface 211 constitutes the inner wall of the cavity 3 , and one end of the air inlet 21 extends to the connection surface 211 and penetrates the connection surface 211 .

[0095] More preferably, the connection surface 211 is a plane. In other embodiments, the connection surface 211 may also be a curved surface, etc. The user may set it as required, and no specific limitation is made here. In this embodiment, the connection surface 211 is a plane.

[0096] More preferably, the valve 5 is arranged opposite to the connecting surface 211 and is fixed on the connecting surface 211 , so that the valve 5 is fixed in the cavity 3 .

[0097] Preferably, the valve 5 may or may not abut against the connection surface 211 in a non-respiratory state. The user may set it as required, and no specific limitation is made here.

[0098] It should be noted that the valve 5 is arranged on the connecting surface 211, so that during exhalation, the gas in the tracheostomy tube 200 enters the cavity 3 through the connecting port 4, and then the valve 5 abuts against the connecting surface 211 under the action of air pressure, thereby blocking the air inlet 21 and preventing the gas from being discharged from the air inlet 21; during inhalation, the external gas flows in through the air inlet 21 under the action of air pressure, and pushes the valve 5 to deform, so that the valve 5 no longer blocks the air inlet 21, and then the gas enters the cavity 3, and then enters the tracheostomy tube 200 through the connecting port 4 to meet the need of inhalation.

[0099] In one embodiment, in a natural state, the projection of the valve 5 on the baffle 2 covers all the air inlet holes 21, and a plurality of cutouts 53 are provided on the edge of the valve 5, and the projection of the cutouts 53 on the baffle 2 does not overlap with the air inlet holes 21. Figure 3 , Figure 4 , Figures 6 to 8 shown.

[0100] Preferably, when the valve 5 is projected onto the baffle 2 along the axial direction of the cavity 3 , the projection formed covers all the air inlet holes 21 , thereby blocking all the air inlet holes 21 during exhalation, effectively preventing the gas in the cavity 3 from being discharged through the air inlet holes 21 .

[0101] More preferably, the cross-section of the valve 5 is inclined, and the edge of the valve 5 is inclined toward the baffle 2, so that the valve 5 can fit tightly on the connecting surface 211 of the baffle 2 when installed on the baffle 2, preventing the formation of a gap between the valve 5 and the connecting surface 211, thereby ensuring the sealing effect of the air inlet 21.

[0102] It should be noted that the edge of the valve 5 can also be inclined in a direction away from the baffle 2, such as Figure 4 As shown, a gap is created between the edge of the valve 5 and the connecting surface 211 of the baffle 2, so as to reduce the inhalation of the patient. That is, the patient uses a smaller suction force to make the edge of the valve 5 tilt up and away from the baffle 2, so that the external gas enters the cavity 3 through the air inlet 21, which is suitable for patients with weaker breathing ability.

[0103] More preferably, the cross section of the valve 5 may be planar, or may be in an arcuate shape, or other shapes, etc., which are not specifically limited here. In the present embodiment, the valve 5 is in an arcuate shape.

[0104] Preferably, the central axis of the fastener 51 is defined as F. When the valve 5 is a curved surface, a point B is randomly selected from the edge of the valve 5, and the tangent at point B is defined as H. The angle e between the tangent H and the central axis F satisfies any value between 80° and 87°, such as 80°, 81°, 82°, 83°, 84°, 85°, 86°, 87°, etc. The specific value can be set as needed and is not specifically limited here. Preferably, the angle e between the tangent H and the central axis F ranges from 84° to 86°. Figure 6 shown.

[0105] Further preferably, similarly, the central axis of the buckle 51 is defined as F, and when the valve 5 is a plane, the angle between the valve 5 and the central axis F is any value between 80° and 87°, such as 80°, 81°, 82°, 83°, 84°, 85°, 86°, 87°, etc., and the selection of the specific value can be set as needed, and is not specifically limited here. Preferably, the angle between the valve 5 and the central axis F ranges from 84° to 86°.

[0106] It should be noted that: it is precisely because of the limitation of the above-mentioned angle value range that when the edge of the valve 5 is tilted toward the baffle 2, the valve 5 is tightly fitted on the connecting surface 211 of the baffle 2, effectively preventing a gap between the two, and the patient can easily lift the edge of the valve 5 when inhaling to meet the need of inhalation; when the edge of the valve 5 is tilted in the direction away from the baffle 2, not only can the edge of the valve 5 be easily lifted during inhalation, which is suitable for patients with weak breathing ability, but also during exhalation, the edge of the valve 5 can quickly block the air inlet 21, effectively preventing the gas in the cavity 3 from being discharged from the air inlet 21, thereby meeting the patient's breathing needs.

[0107] Furthermore, the incision 53 is arranged at the edge of the valve 5 and is preferably extended radially, so that when the patient inhales, the incision 53 accelerates the deformation of the edge of the valve 5, reduces the deformation resistance, and helps the gas to quickly enter the cavity 3.

[0108] Furthermore, the incision 53 can be provided with one, or two, three, four, five, etc. Figure 7 and Figure 8 As shown, when multiple incisions 53 are provided, it is helpful to reduce the resistance to the edge deformation of the valve 5 and reduce the suction force when the patient inhales, which is suitable for patients with weak breathing ability. The selection of the specific value of the incision 53 can be set as needed and is not specifically limited here. When multiple incisions 53 are provided, the multiple incisions 53 are preferably arranged equidistantly along the circumferential direction to ensure that the edge of the valve 5 is deformed evenly.

[0109] Furthermore, the length of the incision 53 is w, and the diameter of the valve 5 is D. Figure 7 As shown, the ratio of w / D is any value between 10% and 40%, for example, it can be 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, 25%, 30%, 35%, 40%, etc. The larger the ratio of w / D, the more conducive it is to the deformation of the edge of the valve 5, so that it can be deformed by a smaller force, thereby meeting the needs of patients with weaker breathing ability.

[0110] It should be noted that: in this embodiment, the ratio of w / D is 27%, which can not only ensure its blocking effect on the air inlet 21, but also can quickly deform during inhalation, so as to meet the needs of inhalation and exhalation to the greatest extent.

[0111] It is also necessary to explain that the projection of the incision 53 on the baffle 2 is staggered and does not overlap with the air inlet 21, thereby avoiding gas leakage from the incision 53 during exhalation, ensuring the sealing effect of the valve 5 on the air inlet 21, and the sealing effect is significant.

[0112] In one embodiment, the air inlet holes 21 are provided in plurality and arranged at intervals along the circumferential direction. Figure 2 shown.

[0113] Preferably, when a plurality of air inlet holes 21 are provided, they are arranged at intervals along the circumferential direction on the baffle 2, so as to ensure balanced air intake, so that the valve 5 is subjected to balanced force during inhalation, which helps the edge of the valve 5 to quickly tilt up, facilitating rapid air intake.

[0114] More preferably, the plurality of air inlet holes 21 are arranged equidistantly along the circumferential direction, thereby further ensuring that the force on the valve 5 is balanced and facilitating the edge of the valve 5 to be lifted up quickly.

[0115] More preferably, the diameters of the multiple air inlet holes 21 can be the same or different, and the user can set them according to needs. No specific limitation is made here. When the diameters of the multiple air inlet holes 21 are the same, the edge force of the valve 5 can be further optimized, making it convenient for the edge of the valve 5 to quickly tilt up.

[0116] In one embodiment, the air inlet holes 21 are arranged in multiple rows, each row of the air inlet holes 21 is arranged in a circular shape, and the total area of ​​the air inlet holes 21 in any radially outer row is greater than the total area of ​​the air inlet holes 21 in any radially inner row. Figure 2 shown.

[0117] Preferably, when a plurality of air inlet holes 21 are provided and arranged at intervals along the circumferential direction, they can be arranged in multiple rows and arranged at intervals along the radial direction, thereby significantly increasing the air intake volume and meeting the patient's inhalation and exhalation needs.

[0118] More preferably, the distance between any two adjacent rows of air inlet holes 21 can be the same or different, and the user can set it according to needs. No specific limitation is made here. When the distance between any two adjacent rows of air inlet holes 21 is the same, the force on the valve 5 can be balanced and it helps the edge of the valve 5 to quickly curl up.

[0119] More preferably, each row of air inlet holes 21 is arranged in a circular shape, that is, each row of air inlet holes 21 is arranged in a circle at intervals along the circumferential direction, so as to adapt to the circular valve 5, so that the edge of the valve 5 is evenly stressed and quickly tilted.

[0120] Preferably, the total area of ​​all the air inlet holes 21 in any radially outer row is larger than the total area of ​​all the air inlet holes 21 in any radially inner row, thereby increasing the air intake on the radial outside and increasing the force on the radial outside of the valve 5, which helps the edge of the valve 5 to quickly rise and achieve rapid air intake.

[0121] Further preferably, when the air inlet holes 21 are arranged in two rows, Figure 2 As shown, the ratio of the total area of ​​the air inlet holes 21 in the radial inner row to the total area of ​​the air inlet holes 21 in the radial outer row is any value between 0.2 and 0.5, such as 0.2, 0.3, 0.4, 0.5, etc. The specific value can be set as needed and is not specifically limited here.

[0122] It should be noted that the ratio of the total area of ​​the air inlet holes 21 in the radially inner row to the total area of ​​the air inlet holes 21 in the radially outer row is 0.32, so as to optimize the effect.

[0123] It is also necessary to explain that: it is the limitation of the above-mentioned ratio range that significantly increases the air intake volume on the radial outside, so that the edge of the valve 5 is subjected to greater force to tilt up quickly, thereby ensuring the rapid completion of air intake.

[0124] Furthermore, the ratio of the total area of ​​all the air inlet holes 21 to the area of ​​the end face of the baffle 2 in the thickness direction is any value between 15% and 50%, for example, it can be 15%, 16%, 17%, 18%, 19%, 20%, 25%, 30%, 35%, 40%, 45%, 50% and the like. The above ratio range can not only ensure the air intake volume, but also enable the valve 5 to open quickly to meet multiple needs. The specific numerical value can be set as needed and is not specifically limited here.

[0125] It should be noted that the ratio of the total area of ​​all air inlet holes 21 to the area of ​​the end face in the thickness direction of the baffle 2 is preferably 20% to 30%, which not only ensures the structural strength of the baffle 2, but also ensures the air intake volume to meet the patient's breathing needs, while ensuring that the force on the valve 5 is balanced, allowing it to open quickly.

[0126] In one embodiment, the speaking valve 100 further comprises a stopper 6 fixed in the connection port 4, the stopper 6 is provided with an abutment surface 61, the baffle 2 comprises a connection surface 211 close to the connection port 4, and a distance L between the abutment surface 61 and the connection surface 211 is greater than the radius of the valve 5. Figure 5 , Figure 7 and Fig.11 shown.

[0127] Preferably, the limit block 6 is fixed on the inner circumferential surface of the connecting port 4, and extends radially inward from the inner circumferential surface of the connecting port 4, so that the end face of the tracheostomy tube 200 abuts against the limit block 6, preventing the tracheostomy tube 200 from being inserted too deeply into the connecting port 4 and affecting the opening of the valve 5.

[0128] More preferably, the limiting block 6 is fixedly connected to the inner circumference of the connecting port 4 , such as by bonding or integral molding, so as to ensure the stability of the structure and prevent the limiting block 6 from falling off the inner circumference of the connecting port 4 .

[0129] More preferably, the limit block 6 may be in the shape of a ring, or may be a plurality of protrusions spaced apart along the circumferential direction, and may be used to abut against the end surface of the tracheostomy tube 200 to prevent the tracheostomy tube 200 from being inserted too deeply, and no specific limitation is made here.

[0130] Preferably, the end surface of the limit block 6 abutting against the tracheostomy tube 200 is an abutment surface 61, and the abutment surface 61 is a plane, thereby increasing the contact area between the end surfaces of the limit block 6 and the tracheostomy tube 200, so as to reduce the pressure of the tracheostomy tube 200 abutting against the limit block 6 and ensure the stability of the structure.

[0131] Further preferably, the surface of the baffle 2 close to the connecting port 4 is a connecting surface 211, which faces the cavity 3. The connecting surface 211 and the abutting surface 61 are preferably arranged in parallel to ensure that the distance between the valve 5 and the end face of the tracheostomy tube 200 is balanced.

[0132] Furthermore, the central area of ​​the valve 5 is fixedly connected to the baffle 2, and the distance L between the connecting surface 211 and the abutting surface 61 is greater than the radius of the valve 5, so that when the edge of the valve 5 is tilted up by force, even if the valve 5 is perpendicular to the baffle 2, the edge of the valve 5 cannot touch the end face of the tracheostomy tube 200, thereby effectively preventing the edge of the valve 5 from blocking the tracheostomy tube 200 due to abutting against the end face of the tracheostomy tube 200, ensuring the normal operation of inhalation and protecting the patient's physical and mental health.

[0133] In one embodiment, the speaking valve 100 further comprises a three-way pipe 9, wherein the three-way pipe 9 comprises a first port 91, and the first port 91 is received in the connecting port 4 and is sealed and connected thereto. Fig.10 shown.

[0134] Preferably, the three-way pipe 9 includes a first port 91 , a second port 92 and a third port 93 , and the first port 91 , the second port 92 and the third port 93 are connected to each other.

[0135] More preferably, the first port 91 is received in the connection port 4 and is sealed therewith, so as to realize the communication between the interior of the three-way pipe 9 and the channel 3. Specifically, the outer peripheral surface of the first port 91 abuts against the inner peripheral surface of the connection port 4 to realize the fixation and sealing of the two; or, a sealing ring is provided between the outer peripheral surface of the first port 91 and the inner peripheral surface of the connection port 4 to realize the fixation and sealing of the two. Further, the end surface of the first port 91 can abut against the limit block 6 to prevent the first port 91 from extending too deep into the connection port 4 and affecting the opening and closing of the valve 5.

[0136] More preferably, the second port 92 is used to connect with the tracheostomy tube 200, and the port of the tracheostomy tube 200 extends into the second port 92 or the second port 92 extends into the tracheostomy tube 200 to achieve a fixed connection and sealing between the two, thereby making the three-way tube 9 connected with the interior of the tracheostomy tube 200 to facilitate the circulation of gas.

[0137] Preferably, the third port 93 can be used to connect an oxygen connector, so as to not only enable the patient to speak but also enable the patient to inhale oxygen and meet the patient's oxygen inhalation needs; alternatively, the third port 93 is used to connect an atomization connector, so as to not only enable the patient to speak but also enable the patient to atomize to meet the purpose of treatment.

[0138] It should be noted that the third port 93 can also be used to connect other connectors, which can be set as needed and are not specifically limited here.

[0139] In one embodiment, the valve 5 is provided with a plurality of through holes 54, the projection of the through holes 54 on the baffle 2 does not overlap with the air inlet 21 so that the valve 5 blocks the air inlet 21 during exhalation, and the maximum distance between the central axis of the through hole 54 and the central axis of the valve 5 is less than the maximum distance between the central axis of the air inlet 21 and the central axis of the valve 5. Fig.13 and Fig.14 shown.

[0140] Preferably, one through hole 54 can be provided, or two, three, four, five or other through holes can be provided. The specific number can be set as required and is not specifically limited here.

[0141] More preferably, the through hole 54 may be a cylinder, a cuboid or other geometric bodies, which are not specifically limited herein.

[0142] More preferably, when there are multiple through holes 54, they can be arranged at intervals in the circumferential direction and in at least one circle, so as to evenly apply force to the valve 5 in the circumferential direction; in other embodiments, the multiple through holes 54 can also be arranged at intervals in other directions, such as the length direction, the width direction, etc., which are not specifically limited here.

[0143] It should be noted that the setting of the through hole 54 allows the gas passing through the air inlet 21 to not only enter the interior of the cavity 3 from the outer edge of the valve 5 during inhalation, but also enter the interior of the cavity 3 through the through hole 54, thereby significantly increasing the air intake and reducing the patient's inhalation pressure.

[0144] Preferably, the projection of the through hole 54 on the baffle 2 is staggered and does not overlap with the air inlet 21, so that during exhalation, the area on the valve 5 where the through hole 54 is not provided abuts against the air inlet 21 and blocks the air inlet 21 to ensure the sealing effect of the air inlet 21 and prevent air leakage.

[0145] Further preferably, the maximum distance between the central axis of the through hole 54 and the central axis of the valve 5 is the distance between the central axis of the through hole 54 farthest from the central axis of the valve 5 among all the through holes 54 and the central axis of the valve 5 .

[0146] Furthermore, the maximum distance between the central axis of the air inlet 21 and the central axis of the valve 5 is the distance between the central axis of the air inlet 21 which is farthest from the central axis of the valve 5 among all the air inlet holes 21 and the central axis of the valve 5 .

[0147] Furthermore, by limiting the maximum distance between the central axis of the through hole 54 and the central axis of the valve 5 to be smaller than the maximum distance between the central axis of the air inlet 21 and the central axis of the valve 5, during inhalation, the position where the gas entering from the air inlet 21 acts on the valve 5 is closer to the edge of the valve 5. At this time, the force arm for opening the valve 5 is the largest, so that the torque acting on the edge of the valve 5 is greater, so that the valve can be opened easily and the pressure of inhalation of the patient can be reduced.

[0148] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A speaking valve, characterized in that: The invention comprises a frame and a valve, wherein the frame comprises a cavity, a baffle located at one end of the cavity, and a connecting port located at the other end of the cavity, the baffle is provided with an assembly hole and an air inlet located around the assembly hole, the valve is located on one side of the air inlet hole for blocking the air inlet hole during exhalation, the valve comprises a fastener and buckle blocks located at both ends of the fastener, the fastener passes through the assembly hole, the baffle is located between the two buckle blocks, and in a natural state, the distance h2 between the two buckle blocks is less than the length h1 of the assembly hole, and the diameter d2 of the fastener is greater than the diameter d1 of the assembly hole.

2. The speaking valve according to claim 1, characterized in that: A first adhesive layer is provided between the outer circumferential surface of the buckle and the inner circumferential surface of the assembly hole.

3. The speaking valve according to claim 2, characterized in that: A second adhesive layer is provided between the buckle block and the end surface of the baffle.

4. The speaking valve according to claim 3, characterized in that: The buckle block, the buckle piece and the valve are integrally formed; And / or, the buckle, the valve, the frame, the first adhesive layer and the second adhesive layer are made of the same material.

5. The speaking valve according to claim 4, characterized in that: The buckle, the valve, the frame, the first adhesive layer and the second adhesive layer are all made of silicone material.

6. The speaking valve according to claim 5, characterized in that: The valve is located on a side of the baffle plate close to the connecting port.

7. The speaking valve according to claim 1, characterized in that: In a natural state, the projection of the valve on the baffle covers all the air inlets, and a plurality of cutouts are provided on the edge of the valve, and the projections of the cutouts on the baffle do not overlap with the air inlets.

8. The speaking valve according to claim 7, characterized in that: The air inlet holes are provided in plurality and are arranged at intervals along the circumferential direction.

9. The speaking valve according to claim 8, characterized in that: The air inlet holes are arranged in multiple rows, each row of the air inlet holes is arranged in a circular shape, and the total area of ​​the air inlet holes in any radially outer row is greater than the total area of ​​the air inlet holes in any radially inner row.

10. The speaking valve according to claim 9, characterized in that The speaking valve further comprises a stopper fixed in the connecting port, the stopper is provided with an abutting surface, the baffle comprises a connecting surface close to the connecting port, and the distance between the abutting surface and the connecting surface is greater than the radius of the valve; And / or, the speaking valve further comprises a three-way pipe, the three-way pipe comprises a first port, the first port is received in the connecting port and is sealedly connected thereto; And / or, the valve is provided with a plurality of through holes, the projections of the through holes on the baffle plate do not overlap with the air inlet hole so that the valve blocks the air inlet hole during exhalation, and the maximum distance between the central axis of the through hole and the central axis of the valve is smaller than the maximum distance between the central axis of the air inlet hole and the central axis of the valve.

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