A respiratory mask and breathing apparatus

Abstract

The utility model is suitable for breathing equipment technical field provides a kind of breathing mask and breathing equipment, breathing mask includes: mask main body, the front end of mask main body is provided with airflow passage interface and oxygen channel interface;Support, with mask main body is connected;And airflow passage subassembly, with the airflow passage interface of mask main body front end intercommunication;Airflow passage subassembly contains elbow structure, and the bending pipe wall of elbow structure is set to straight section;Elbow structure is also provided with the valve hole and anti-choking valve piece of the anti-choking valve, and valve hole is located on straight section;Anti-choking valve piece can be pushed by airflow and be deformed to valve hole side, and then close valve hole.In the present application when anti-choking valve piece is pushed by airflow and sticks to straight section, the degree of fit of both is higher, can make the cooperation of anti-choking valve piece and valve hole on straight section more closely, can make the deformation state of anti-choking valve piece more regular, reduce the abrasion phenomenon, improve its service life.

Description

Technical Field

[0001] This utility model belongs to the field of respiratory equipment technology, and in particular relates to a respiratory mask and a respiratory device. Background Technology

[0002] Breathing masks are generally used in conjunction with ventilators to assist patients with breathing. They are currently widely used in the fields of sleep apnea and COPD, greatly alleviating the symptoms of apnea and difficulty breathing in patients.

[0003] When in use, a breathing mask is placed over the user's mouth and nose, providing fresh air / oxygen and expelling exhaled waste gas from the device. The smooth gas exchange of the breathing mask directly affects the patient's treatment outcome and user experience. This places high demands on the design of the gas exchange control structures in the breathing mask. These structures are often used frequently, leading to rapid wear and a reduced lifespan. Utility Model Content

[0004] The purpose of this application is to provide a breathing mask that addresses the problems mentioned in the background art.

[0005] The embodiments of this application are implemented as follows: a breathing mask includes:

[0006] The mask body has an airflow channel interface and an oxygen inlet channel at its front end;

[0007] A support bracket, connected to the main body of the mask, is used to secure the breathing mask when worn; and

[0008] An airflow channel assembly is connected to the airflow channel interface at the front end of the mask body; wherein, the airflow channel assembly includes a bent tube structure, the bent tube wall of the bent tube structure is configured with a straight cross-section; the bent tube structure is also provided with a valve hole and an anti-suffocation valve plate forming an anti-suffocation valve, wherein, the valve hole is located on the straight cross-section; the anti-suffocation valve plate can be pushed by airflow to deform towards the valve hole, thereby closing the valve hole.

[0009] Preferably, the bent pipe structure is provided with a valve plate mounting port, and the anti-suffocation valve plate extends into the interior of the bent pipe structure through the valve plate mounting port and is detachably connected to the valve plate mounting port.

[0010] Preferably, the anti-suffocation valve plate includes:

[0011] A block-shaped mounting body, which mates with the valve plate mounting port; and

[0012] A plate-shaped valve body connected to the block-shaped mounting body.

[0013] Preferably, the angle between the sheet-like valve body and the straight cut surface is in the range of 30° to 45°.

[0014] Preferably, the windward side of the disc valve body is provided with a recessed portion or a wind-gathering baffle.

[0015] Preferably, the airflow channel assembly further includes: a sleeve structure that docks with the bent pipe structure, and a tapered joint that is rotatably connected to the sleeve structure.

[0016] Preferably, the main structure of the bracket is provided with:

[0017] A connection port for fitting onto the outside of the airflow channel interface; and

[0018] Wearing arms extending to both sides, the arms being used to connect and cooperate with the wearing headband.

[0019] Preferably, the end of the support arm is provided with a hook, which is used for inserting a hook and forming a fastening connection;

[0020] The end edge of the hanging opening is a cylindrical stop handle;

[0021] The hook has a hook-shaped fastening structure, which can hook onto the stop handle, and the cylindrical stop handle can rotate freely relative to the hook-shaped fastening structure.

[0022] Preferably, the inner edge of the mask body is connected to a silicone pad;

[0023] The silicone pad that contacts the face is the face-fitting part, and the wall thickness of the face-fitting material is 0.3mm to 0.5mm; and the wall thickness of the material gradually decreases towards the face side;

[0024] The side of the face mask closest to the main body is folded with its own silicone material to form a wrinkled stripe layer.

[0025] This application also provides another solution, which is implemented as follows: a breathing device is provided, including the breathing mask in any of the above embodiments, and a breathing support device connected to the breathing mask.

[0026] The breathing mask provided in the above embodiments of this application includes a mask body, a support, and an airflow channel assembly. The airflow channel assembly improves the curved tube structure by setting one side of the outer arc surface of the traditional curved tube as a flat cut surface, which improves the engagement of the anti-asphyxiation valve. When the anti-asphyxiation valve is pushed by the airflow and adheres to the flat cut surface, the fit between the two is higher, which makes the fit between the anti-asphyxiation valve and the valve hole on the flat cut surface tighter. It also makes the deformation state of the anti-asphyxiation valve more regular, thereby reducing wear and improving its service life. Attached Figure Description

[0027] Figure 1 An exploded view of the overall structure of a breathing mask provided in an embodiment of this application;

[0028] Figure 2 An exploded view of the airflow channel assembly provided in an embodiment of this application;

[0029] Figure 3 A cross-sectional view along the axial direction of the bent pipe structure provided in the embodiment of this application;

[0030] Figure 4 An external view of a deformed structure of the bent pipe structure provided in the embodiments of this application;

[0031] Figure 5 This is a cross-sectional view of the tapered joint and sleeve structure provided in the embodiments of this application;

[0032] Figure 6 A structural diagram of the sleeve structure provided in the embodiments of this application;

[0033] Figure 7 A diagram showing the fit between the hook and the hanging opening in an embodiment of this application;

[0034] Figure 8 This is a schematic diagram of a hook structure provided in an embodiment of this application;

[0035] Figure 9 A cross-sectional view of the silicone pad provided in an embodiment of this application;

[0036] Figure 10 This is a schematic diagram of the structure of the wrinkled stripe layer provided in an embodiment of this application. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0038] The specific implementation of this application will be described in detail below with reference to specific embodiments.

[0039] like Figures 1-10 As shown in the illustration, an embodiment of this application provides a breathing mask, specifically referring to... Figures 1-3 The breathing mask includes:

[0040] The mask body 100 has an airflow channel interface 110 and an oxygen inlet channel 120 at its front end.

[0041] A bracket 200, connected to the mask body 100, is used for securing the breathing mask when worn; and

[0042] An airflow channel assembly 300 is connected to an airflow channel interface 110 at the front end of the mask body 100. The airflow channel assembly 300 includes a bent tube structure 310, the bent tube wall of which is configured as a straight cut surface 311. The bent tube structure 310 is also provided with a valve hole 312 and an anti-suffocation valve plate 313, which form an anti-suffocation valve. The valve hole 312 is located on the straight cut surface 311. The anti-suffocation valve plate 313 can be deformed towards the valve hole 312 by airflow, thereby closing the valve hole 312.

[0043] In this embodiment, the mask body 100 is a structure that protrudes from the rear end to the front end. The rear end refers to the side facing the face when worn, and the front end is the opposite side, i.e., the side facing the same direction as the face. The recessed space formed at the rear end of the mask body 100 fits the user's face, mouth, and nose when worn. The mask body 100 is also provided with ventilation holes.

[0044] In this embodiment, the airflow channel interface 110 of the mask body 100 is connected to the airflow channel assembly 300, and is further connected to the breathing device / instrument through the airflow channel assembly 300.

[0045] In this embodiment, the first end of the bend structure 310 in the airflow channel assembly 300 is connected to the airflow channel interface 110, and the second end of the bend structure 310 is connected to the instrument. When gas enters from the second end of the bend structure 310, after the internal pressure reaches a certain level, it will push the anti-asphyxiation valve plate 313 to close the valve hole 312 to prevent gas leakage. When no gas enters from the second end of the bend structure 310, the anti-asphyxiation valve plate 313 will recover due to its own elastic force, opening the valve hole 312 to leak residual carbon dioxide and connect with the atmosphere to avoid asphyxiation.

[0046] In one scenario, the oxygen access channel 120 on the mask body 100 is provided in two sets, respectively located on the left and right sides of the airflow channel interface 110. One function is to connect to the oxygen generator; another is to facilitate doctors in measuring the carbon dioxide concentration inside the patient's breathing mask; and a third is that in abnormal working conditions, if the carbon dioxide inside the patient's breathing mask is too high and cannot be expelled, the carbon dioxide can be expelled through this oxygen access channel 120. This oxygen access channel 120 is plugged with a silicone plug when not in use, and the silicone plug is opened when in use.

[0047] In the embodiments of this application, the straight cut surface 311 of the bent pipe structure 310 can be obtained by molding without the need for additional meat filling process, thus reducing manufacturing costs.

[0048] Meanwhile, the bent pipe wall on one side of the outer arc surface of the bent pipe structure 310 is set as a straight cut surface 311. The purpose is to make the fit between the two higher when the anti-suffocation valve plate 313 is pushed by the airflow to adhere to the straight cut surface 311. This can make the fit between the anti-suffocation valve plate 313 and the valve hole 312 on the straight cut surface 311 tighter. In addition, it can make the deformation state of the anti-suffocation valve plate 313 more regular and improve its service life.

[0049] In one embodiment of this application, the anti-suffocation valve plate 313 is made of an elastic material with a recovery function, preferably silicone material. It can be pushed by the airflow flowing towards the mask body 100 and bent and deformed towards the valve hole 312 side, thereby fitting with the flat cut surface 311 and sealing the valve hole 312.

[0050] In one embodiment of this application, the bent pipe structure 310 is provided with a valve plate mounting port 314. The anti-suffocation valve plate 313 extends into the interior of the bent pipe structure 310 through the valve plate mounting port 314 and is detachably connected to the valve plate mounting port 314. The valve plate mounting port 314 is located below the bent pipe structure 310 (in the operating state), that is, on one side of the second end of the bent pipe structure 310 relative to the valve port.

[0051] In one embodiment of this application, the anti-suffocation valve plate 313 includes: a block-shaped mounting body 3131, which is connected to the valve plate mounting port 314; and a sheet-shaped valve plate body 3132 connected to the block-shaped mounting body 3131. It is understood that the block-shaped mounting body 3131 and the sheet-shaped valve plate body 3132 can be an integrally formed structure or a detachable connection structure; both can be made of the same material or different materials; furthermore, a tight and sealed connection is formed between the block-shaped mounting body 3131 and the valve plate mounting port 314.

[0052] In a preferred embodiment of this application, such as Figure 4As shown, the block-shaped mounting body 3131 is provided with a positioning protrusion 3133, and the valve plate mounting port 314 is provided with a matching positioning groove 3141.

[0053] In one embodiment of this application, the angle between the plate-shaped valve body 3132 and the straight cut surface 311 is in the range of 30° to 45°. Within this angle range, the plate-shaped valve body 3132 moves towards the valve hole 312 faster, shortening the time required for the function to be realized. At the same time, it can also effectively ensure sufficient rebound effect in the recovery state, preventing accidental triggering of the action to close the valve hole 312. This achieves the closing and opening action of the anti-suffocation valve in the shortest possible time, reducing the risk of failure. Meanwhile, since the movement range of the anti-suffocation valve plate 313 is small, the wear of the anti-suffocation valve plate is reduced, thereby increasing its service life.

[0054] In a preferred embodiment of this application, the windward side (facing the second end of the bent pipe structure) of the sheet valve body 3132 is provided with a recess (not shown) or a wind-gathering baffle (not shown). Compared with the windward side of the sheet valve body 3132 being set as a flat surface, the structure of this embodiment can increase the driving force of the airflow on the sheet valve body 3132, thereby improving the response sensitivity of the closing valve orifice 312.

[0055] In one embodiment of this application, such as Figure 2 , 3 As shown in Figures 5 and 6, the airflow channel assembly 300 further includes: a sleeve structure 320 that is connected to the bent tube structure 310, and a tapered joint 330 that is rotatably connected to the sleeve structure 320; the movable connection between the two can absorb the torque generated on the pipeline during the user's movement, reduce wear, and increase the overall service life of the breathing mask.

[0056] The sleeve structure 320 and the tapered joint 330 are restricted from moving along the axial direction by the first limiting mechanism 340 and the second limiting mechanism.

[0057] The first limiting mechanism 340 includes a first annular protrusion structure 321 and a second annular protrusion structure 331. The inner surface of the tapered connector 330 has the second annular protrusion structure 331 at its end. The end of the sleeve structure 320 that abuts with the tapered connector 330 has the first annular protrusion structure 321. The sleeve structure 320 has two opposing U-shaped notches 322 at this end. When it is assembled to the outside of the second annular protrusion structure 331 of the tapered connector 330, one annular protrusion structure 321 needs to pass axially through the second annular protrusion structure 331. At this time, the two U-shaped notches 322 provide space for compression deformation at the end of the sleeve structure 320, thereby allowing the tapered connector 330 to fit onto the sleeve structure 320.

[0058] The second limiting mechanism includes the shaft flange 332 of the sleeve structure and the shaft shoulder 323 of the sleeve structure 320.

[0059] In one embodiment of this application, such as Figure 1 As shown, the main structure of the bracket 200 is provided with: a connection port for fitting onto the outside of the airflow channel interface 110; and wearing arms 210 extending to both sides, the arms 210 being used to connect and cooperate with the wearing headband 400.

[0060] In a preferred embodiment of this application, such as Figure 7 , 8 As shown, the end of the support arm 210 is provided with a hook opening 220, which is used for the insertion of the hook 230 to form a fastening connection 240; the end edge of the hook opening is a cylindrical stop 221; the hook 230 has a hook-shaped fastening structure, which can hook onto the stop 230, and the cylindrical stop 230 can rotate freely relative to the hook-shaped fastening structure. Specifically, as... Figure 8 As shown, the hook-shaped fastening structure has an "R"-shaped opening 231, which increases the accuracy of the hook 230 when it is fastened and increases the radiation range by nearly 47.86 degrees. At the same time, the long tail of the "R"-shaped opening reduces the possibility of it falling off; the semi-circular shape of the "R"-shaped opening and the circular stop 221 of the hook 220 can adapt to the size of the head and rotate and fit at any angle without any discomfort or abnormal noise.

[0061] In one embodiment of this application, the inner edge of the mask body 100 is connected to the silicone pad 500; the two can be fused together to form a molded structure, without any defects such as delamination or cracking, resulting in a more robust and aesthetically pleasing overall structure.

[0062] In one embodiment of this application, such as Figure 9 As shown, the contact area between the silicone pad 500 and the face is the face-fitting area 510, and the material wall thickness of the face-fitting area 510 is 0.3mm to 0.5mm; moreover, the material wall thickness gradually decreases towards the face. This material wall thickness setting can minimize the contact / pressure sensation between the face-fitting material and the face; in addition, the gradually increasing thickness can gradually release the pressure sensation and effectively support the cavity of the entire silicone pad 500 to prevent it from collapsing.

[0063] In a preferred embodiment of this application, such as Figure 10As shown, the side of the face mask close to the main body is folded with its own silicone material to form a wrinkled stripe layer 520. The purpose is to better release pressure, make the user more comfortable and provide elastic support, so that the entire structure does not collapse or fail to rebound. The wrinkled stripes on both the inside and outside increase the novelty and aesthetics of the structure.

[0064] In one embodiment of this application, a breathing device is also provided, which includes a breathing mask as mentioned in any of the embodiments above, and a breathing support device connected to the breathing mask; wherein the breathing support device may be an oxygen generator.

[0065] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A respiratory mask, characterized in that, include: The mask body has an airflow channel interface and an oxygen inlet channel at its front end; A support bracket, connected to the main body of the mask, is used to secure the breathing mask when worn; and An airflow channel assembly is connected to the airflow channel interface at the front end of the mask body; wherein, the airflow channel assembly includes a bent tube structure, the bent tube wall of the bent tube structure is configured with a straight cross-section; the bent tube structure is also provided with a valve hole and an anti-suffocation valve plate forming an anti-suffocation valve, wherein, the valve hole is located on the straight cross-section; the anti-suffocation valve plate can be pushed by airflow to deform towards the valve hole, thereby closing the valve hole.

2. The breathing mask according to claim 1, characterized in that, The bent pipe structure is provided with a valve plate mounting port. The anti-suffocation valve plate extends into the interior of the bent pipe structure through the valve plate mounting port and is detachably connected to the valve plate mounting port.

3. The breathing mask according to claim 2, characterized in that, The anti-asphyxiation valve plate includes: A block-shaped mounting body, which mates with the valve plate mounting port; and A plate-shaped valve body connected to the block-shaped mounting body.

4. The breathing mask according to claim 3, characterized in that, The angle between the plate-shaped valve body and the straight cut surface ranges from 30° to 45°.

5. The breathing mask according to claim 4, characterized in that, The windward side of the disc valve body is provided with a recessed portion or a wind-gathering baffle.

6. The breathing mask according to claim 1, characterized in that, The airflow channel assembly further includes: a sleeve structure that docks with the bent pipe structure, and a tapered joint that is rotatably connected to the sleeve structure.

7. The breathing mask according to claim 6, characterized in that, The main structure of the bracket is provided with; A connection port for fitting onto the outside of the airflow channel interface; and Wearing arms extending to both sides, the arms being used to connect and cooperate with the wearing headband.

8. The breathing mask according to claim 7, characterized in that, The end of the support arm is provided with a hook opening, which is used for inserting a hook to form a fastening connection; The end edge of the hanging opening is a cylindrical stop handle; The hook has a hook-shaped fastening structure, which can hook onto the stop handle, and the cylindrical stop handle can rotate freely relative to the hook-shaped fastening structure.

9. The breathing mask according to claim 8, characterized in that, The inner edge of the mask body is connected to the silicone pad; The silicone pad that contacts the face is the face-fitting part, and the wall thickness of the face-fitting material is 0.3mm to 0.5mm; and the wall thickness of the material gradually decreases towards the face side; The side of the face mask closest to the main body is folded with its own silicone material to form a wrinkled stripe layer.

10. A breathing device, characterized in that, The breathing mask as described in any one of claims 1 to 9, and the breathing support device connected to the breathing mask.

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