A protective oxygen mask with removable filter module

Abstract

The utility model relates to medical instrument technical field, specifically disclose a kind of detachable filter module's protective oxygen mask, comprising: mask assembly and the filter assembly of assembly in the both sides of mask assembly, and the fixed component of assembly in the rear end of mask assembly;The mask assembly includes mask body, and the front end of mask body is communicated with oxygen delivery pipe;The filter assembly includes fixed installation in the both sides of mask body and the air pipe, and the air pipe is communicated with the flow guide pipe between, and the inside sliding installation of air pipe has sealing seat, and the inner wall of air pipe is fixedly installed with the sealing ring corresponding with sealing seat;The utility model can replace filter core, and the gas exhaled by patient can be guided to another filter cartridge to continue filtering by flow guide pipe, avoid the gas carrying pathogen to be emitted to air to cause cross infection, bring more convenience to the replacement of filter core.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a protective oxygen mask with a detachable filter module. Background Technology

[0002] As a key piece of equipment in medical emergency care, high-pollution environment operations, and personal protective equipment, the core function of oxygen masks is to provide users with pure oxygen and block harmful external substances. In recent years, with the frequent occurrence of infectious diseases, higher requirements have been placed on medical protective equipment. Airborne and droplet transmission are the main transmission routes of respiratory infectious diseases. In infectious disease isolation wards, the air exhaled by patients may carry high concentrations of pathogens. If the mask does not seal well or has low filtration efficiency, it is very easy to cause cross-infection.

[0003] However, current oxygen masks with filters usually require filter replacement during use. During filter replacement, the patient's exhaled air cannot be filtered, causing pathogen-carrying gases to be released into the air, which can easily lead to cross-infection and makes filter replacement inconvenient. To address these issues, the applicant proposes a protective oxygen mask with a detachable filter module. Utility Model Content

[0004] The purpose of this invention is to provide a protective oxygen mask with a detachable filter module. During filter replacement, the patient's exhaled air can be automatically switched to another set of filter components for filtration. This allows for continuous filtration of the patient's exhaled air without removing the mask itself, effectively preventing pathogen-carrying gases from being released into the air and causing cross-infection. It also brings greater convenience to the filter replacement operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A protective oxygen mask with a detachable filter module, comprising:

[0007] A face mask assembly and filter assemblies mounted on both sides of the face mask assembly, and a fixing assembly mounted on the rear end of the face mask assembly;

[0008] The mask assembly includes a mask body, and an oxygen delivery tube is connected to the front end of the mask body;

[0009] The filter assembly includes air outlet pipes fixedly installed on both sides of the mask body, with a guide pipe connecting the air outlet pipes. A sealing seat is slidably installed inside the air outlet pipe, and a sealing ring corresponding to the sealing seat is fixedly installed on the inner wall of the air outlet pipe. A filter cylinder is threadedly installed at one end of the air outlet pipe, and a filter element is inserted into the inside of the filter cylinder. A top post that abuts against the sealing seat is fixedly installed on the inner wall of the filter cylinder.

[0010] Preferably, the fixing component includes fixing straps fixedly installed on both sides of the mask body, and the fixing straps are connected to the mask body by a fixing bracket.

[0011] Preferably, an ear loop is fixedly installed at the rear end of the fixing strap, and a limit strap is fixedly installed between the ear loops.

[0012] Preferably, an anti-slip strap is fixedly installed between the tops of the ear loops, and the anti-slip strap, the limiting strap, and the fixing strap all have ventilation holes on their surfaces.

[0013] Preferably, a silicone pad is fixedly installed on the inner wall of the mask body, and the air outlet pipe is connected to the mask body.

[0014] Preferably, the sealing seat has a plurality of vent holes arranged in a ring array, and the filter cartridge has an exhaust hole on one side.

[0015] Preferably, a support frame is fixedly installed inside the air outlet pipe, and a thrust spring is fixedly installed between the support frame and the sealing seat.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] (1) This utility model is equipped with a filter assembly. When the filter element is replaced by disassembling the filter cartridge, the sealing seat can automatically fit and seal with the sealing seat, which can block the exhaled gas from being discharged from one of the air outlets. The exhaled gas can be guided to the other air outlet through the guide tube, and the other filter cartridge can continue to filter the exhaled gas. It is possible to continuously filter the patient's exhaled gas without removing the mask body, which effectively avoids the release of gas carrying pathogens into the air and the risk of cross-infection, and brings more convenience to the filter element replacement operation.

[0018] (2) This utility model is equipped with a fixing component, which can wrap around the patient's head through the fixing strap and the limiting strap, and hang on the patient's ears with the ear strap to avoid displacement. The anti-slip strap can wrap around the top of the patient's head to form a triangular wrapping effect, which can effectively prevent the mask body from falling off and improve the fixing effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the fixing component structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the mask assembly structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the filter assembly structure of this utility model;

[0023] Figure 5 This is a cross-sectional view of the filter assembly of this utility model;

[0024] In the diagram: 1. Fixing assembly; 11. Fixing strap; 12. Ear loop; 13. Limiting strap; 14. Anti-slip strap; 15. Vent hole; 2. Mask assembly; 21. Mask body; 22. Silicone pad; 23. Fixing frame; 24. Oxygen delivery tube; 3. Filter assembly; 31. Exhaust tube; 32. Threaded sleeve; 33. Filter element; 34. Filter cartridge; 35. Top post; 36. Guide tube; 37. Exhaust port; 38. Sealing ring; 39. Sealing seat; 310. Vent hole; 311. Support frame; 312. Thrust spring. Detailed Implementation

[0025] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example 1:

[0029] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a protective oxygen mask with a detachable filter module includes:

[0030] The mask assembly 2 and the filter assembly 3 mounted on both sides of the mask assembly 2, and the fixing assembly 1 mounted on the rear end of the mask assembly 2;

[0031] The mask assembly 2 includes a mask body 21, and an oxygen delivery tube 24 is connected to the front end of the mask body 21.

[0032] The filter assembly 3 includes an air outlet pipe 31 fixedly installed on both sides of the mask body 21, a guide pipe 36 connecting the air outlet pipes 31, a sealing seat 39 slidably installed inside the air outlet pipe 31, a sealing ring 38 corresponding to the sealing seat 39 fixedly installed on the inner wall of the air outlet pipe 31, a filter cylinder 34 threadedly installed at one end of the air outlet pipe 31 through a threaded sleeve 32, a filter element 33 inserted inside the filter cylinder 34, and a top post 35 that abuts against the sealing seat 39 fixedly installed on the inner wall of the filter cylinder 34.

[0033] As can be seen from the above, when in use, by attaching the fixing component 1 to the patient's head, the mask body 21 can be fixed to the patient's mouth and nose. By connecting the oxygen supply equipment through the oxygen delivery tube 24, it is convenient to use the mask body 21 to supply oxygen to the patient. The patient's exhaled air can be introduced into the exhaust tube 31, and the exhaled air can be introduced into the filter cartridge 34. The filter element 33 can filter out pathogens in the exhaled air, so that the exhaled air does not carry pathogens and cause cross-infection.

[0034] When the filter element 33 needs to be replaced, the filter cartridge 34 on one of the air outlet pipes 31 can be rotated and unscrewed, allowing the top post 35 to separate from the sealing seat 39. This allows the sealing seat 39 to automatically engage with the sealing ring 38, sealing the inside of the air outlet pipe 31. This prevents the patient's exhaled air from being released into the air when the filter cartridge 34 is removed. After sealing one of the air outlet pipes 31, the air entering the air outlet pipe 31 can be guided to the other air outlet pipe 31 through the guide tube 36. The filter element 33 in the other filter cartridge 34 can then continue to filter the exhaled air. This allows for continuous filtration of the patient's exhaled air without removing the mask body 21, effectively preventing pathogen-carrying gases from being released into the air and causing cross-infection. This greatly simplifies the filter element replacement process.

[0035] Depend on Figure 2 It can be seen that the fixing component 1 includes fixing straps 11 fixedly installed on both sides of the mask body 21, and the fixing straps 11 are connected to the mask body 21 by fixing brackets 23.

[0036] As can be seen from the above, the fixing frame 23 can connect and fix one end of the fixing strap 11, so that the fixing strap 11 can fix the mask body 21 to the patient's mouth and nose.

[0037] For details, please refer to Figure 2 As shown, an ear strap 12 is fixedly installed at the rear end of the fixing strap 11, and a limit strap 13 is fixedly installed between the ear straps 12.

[0038] As can be seen from the above, by wrapping the limiting band 13 around the back of the patient's head for restraint and using the ear strap 12 to suspend it on the patient's ear, displacement of the fixing band 11 and the limiting band 13 can be avoided, reducing the risk of detachment.

[0039] For details, please refer to Figure 2 As shown, an anti-slip strap 14 is fixedly installed between the tops of the ear loops 12. Ventilation holes 15 are provided on the surfaces of the anti-slip strap 14, the limiting strap 13, and the fixing strap 11.

[0040] As can be seen from the above, the anti-slip strap 14 can be wrapped around the top of the patient's head, forming a triangular wrapping effect with the fixation strap 11 and the limiting strap 13, which can improve the fixation effect and effectively prevent the mask body 21 from falling off. The ventilation holes 15 can facilitate ventilation and avoid stuffiness and sweating at the skin contact points.

[0041] Example 2:

[0042] refer to Figure 3As shown, a silicone pad 22 is fixedly installed on the inner wall of the mask body 21, and the air outlet pipe 31 is connected to the mask body 21.

[0043] As can be seen from the above, by attaching the silicone pad 22 to the facial skin, the sealing between the patient's face and the mask body 21 can be improved, preventing air leakage and allowing the patient's exhaled air to be introduced into the air outlet tube 31 for filtration.

[0044] refer to Figure 5 As shown, the sealing seat 39 has multiple vent holes 310 arranged in a ring array, and the filter cartridge 34 has an exhaust hole 37 on one side.

[0045] As can be seen from the above, when the filter cartridge 34 is threaded onto the threaded sleeve 32, the top post 35 can contact the sealing seat 39, which can push the sealing seat 39 to move, so that the sealing seat 39 is separated from the sealing ring 38. The air vent 310 allows the gas entering the air outlet pipe 31 to enter the filter cartridge 34 normally for filtration. The filtered gas can be easily discharged through the exhaust port 37, allowing the patient to exhale normally.

[0046] refer to Figure 5 As shown, a support frame 311 is fixedly installed inside the air outlet pipe 31, and a thrust spring 312 is fixedly installed between the support frame 311 and the sealing seat 39.

[0047] As can be seen from the above, after the filter cartridge 34 is disassembled, the support frame 311 can be used to support the thrust spring 312. The thrust spring 312 can generate a thrust on the sealing seat 39, which can easily push the sealing seat 39 to move, so that the sealing seat 39 automatically fits with the sealing ring 38 to seal. This can prevent the patient's exhaled gas from leaking to the outside when the filter cartridge 34 is disassembled, thus improving the safety effect during use.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective oxygen mask with a detachable filter module, characterized in that, include: The mask assembly (2) and the filter assembly (3) assembled on both sides of the mask assembly (2), and the fixing assembly (1) assembled at the rear end of the mask assembly (2); The mask assembly (2) includes a mask body (21), and the front end of the mask body (21) is connected to an oxygen supply tube (24); The filter assembly (3) includes an air outlet pipe (31) fixedly installed on both sides of the mask body (21), a guide pipe (36) connecting the air outlet pipes (31), a sealing seat (39) slidably installed inside the air outlet pipe (31), a sealing ring (38) corresponding to the sealing seat (39) fixedly installed on the inner wall of the air outlet pipe (31), a filter cylinder (34) threadedly installed at one end of the air outlet pipe (31) through a threaded sleeve (32), a filter element (33) inserted inside the filter cylinder (34), and a top post (35) that abuts against the sealing seat (39) fixedly installed on the inner wall of the filter cylinder (34).

2. The protective oxygen mask with a detachable filter module according to claim 1, characterized in that: The fixing component (1) includes fixing straps (11) fixedly installed on both sides of the mask body (21), and the fixing straps (11) are connected to the mask body (21) by a fixing bracket (23).

3. A protective oxygen mask with a detachable filter module according to claim 2, characterized in that: Ear straps (12) are fixedly installed at the rear end of the fixing strap (11), and a limiting strap (13) is fixedly installed between the ear straps (12).

4. A protective oxygen mask with a detachable filter module according to claim 3, characterized in that: An anti-slip strap (14) is fixedly installed between the tops of the ear loops (12), and the surfaces of the anti-slip strap (14), the limiting strap (13), and the fixing strap (11) are all provided with ventilation holes (15).

5. A protective oxygen mask with a detachable filter module according to claim 1, characterized in that: A silicone pad (22) is fixedly installed on the inner wall of the mask body (21), and the air outlet pipe (31) is connected to the mask body (21).

6. A protective oxygen mask with a detachable filter module according to claim 1, characterized in that: The sealing seat (39) has a plurality of vent holes (310) arranged in a ring array, and the filter cylinder (34) has an exhaust hole (37) on one side.

7. A protective oxygen mask with a detachable filter module according to claim 1, characterized in that: A support frame (311) is fixedly installed inside the air outlet pipe (31), and a thrust spring (312) is fixedly installed between the support frame (311) and the sealing seat (39).

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