Breathing mask and ventilation treatment equipment

Abstract

The utility model discloses a breathing mask and ventilation treatment equipment. The breathing mask comprises a shell, a first liner and a second liner, the first liner and the second liner are both connected with the shell, the first liner and the second liner are both annular and are both provided with inner cavities, the second liner is arranged outside the first liner in a surrounding mode, and the sides, away from the shell, of the first liner and the second liner are used for making contact with the face of the human body; the first gasket and the second gasket are both provided with air vents, the air vents are communicated with the inner cavity, and the air vents are used for air inflow or air deflation so that the first gasket and the second gasket can be switched between the expansion state and the contraction state. The first pad and the second pad are respectively provided with an independent air vent, the first pad and the second pad are in different deformation states through different actions of air inlet or air outlet, areas in contact with the skin can be switched, and the skin of the same part of the face is prevented from being pressed by the mask for a long time.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and particularly relates to a breathing mask and a ventilation treatment device. Background Art

[0002] A breathing mask is a widely used medical device, and an oxygen mask is an important one of them. Its function is to transport oxygen from a storage tank to the human lungs, and it is applied in surgeries, first aids, flights and other emergency situations to provide necessary oxygen supply for patients.

[0003] The composition structure of the oxygen mask includes but is not limited to a mask body, an oxygen supply tube and a connector. Among them, the mask body needs to wrap the human mouth and nose or the whole face. In related technologies, straps are usually arranged on both sides of the mask body and fixed around the back of the human neck to enhance the fit with the human face.

[0004] In related technologies, when wearing the mask for a long time, due to the long-term fit between the mask and the human face, it is easy to cause the facial skin to be oppressed for a long time, the blood circulation is hindered to a certain extent, and then indentations are formed, and even the human facial skin tissue is damaged. The indentations formed over a long time are also difficult to recover naturally after removing the mask, affecting the normal life of users. Summary of the Utility Model

[0005] The purpose of the embodiment of the utility model is to provide a breathing mask and a ventilation treatment device, which can solve the problem that the mask is easy to oppress the human face when worn for a long time in related technologies.

[0006] In order to solve the above technical problems, the embodiments of the utility model are implemented as follows:

[0007] In a first aspect, the embodiment of the utility model provides a breathing mask, including a housing, a first gasket and a second gasket;

[0008] Both the first gasket and the second gasket are connected to the housing. Both the first gasket and the second gasket are annular and have inner cavities. The second gasket is disposed outside the first gasket. The sides of the first gasket and the second gasket facing away from the housing are used for contacting the human face;

[0009] Both the first gasket and the second gasket are provided with ventilation ports, and the ventilation ports are communicated with the inner cavities. The ventilation ports are used for air intake or air release, so that the first gasket and the second gasket can be switched between an expanded state and a contracted state.

[0010] Optionally, the breathing mask further includes two air guiding components;

[0011] The air guiding assembly includes an air guiding pipe, a shielding piece, and an elastic member. One air guiding assembly is connected to each of the first gasket and the second gasket. The air guiding pipe communicates with the air vent. One end of the air guiding pipe facing away from the air vent has an opening. One end of the elastic member is fixed inside the air guiding pipe, and the other end abuts against the shielding piece. The elastic force of the elastic member is used to move the shielding piece towards the direction close to the opening to shield the opening.

[0012] Optionally, the air guiding pipe includes a first air guiding portion, a second air guiding portion, and a third air guiding portion arranged in sequence along the axial direction;

[0013] The diameter of the second air guiding portion is larger than the diameters of the first air guiding portion and the third air guiding portion. One end of the elastic member is fixed to the end of the second air guiding portion facing the first air guiding portion. The shielding piece can move to the end of the second air guiding portion facing the third air guiding portion under the action of the elastic force of the elastic member. The third air guiding portion is provided with the opening.

[0014] Optionally, the breathing mask further includes a barometric pressure sensor;

[0015] Barometric pressure sensors are arranged in the inner cavities of both the first gasket and the second gasket.

[0016] Optionally, the breathing mask further includes a connecting assembly and an air delivery pipe;

[0017] A through hole is provided on the housing. One end of the through hole is connected to the air delivery pipe through the connecting assembly, and the other end of the through hole is used to communicate with the human mouth and / or nose.

[0018] Optionally, the connecting assembly includes a connecting seat and a connecting head;

[0019] The connecting seat is fixed on the housing. The connecting head is spherical. The connecting head is located inside the connecting seat and is hinged to the connecting seat. The connecting head can rotate relative to the connecting seat in any direction. The connecting head has a spherical cavity communicating with the through hole. The air delivery pipe extends into the connecting seat and communicates with the spherical cavity.

[0020] Optionally, the sides of the first gasket and the second gasket facing away from the housing are curved surfaces.

[0021] Optionally, the breathing mask further includes an oxygen concentration sensor;

[0022] The oxygen concentration sensor is arranged on the side of the housing facing the human face.

[0023] Optionally, the breathing mask further includes a display and a sound generator;

[0024] The display and the sound generator are arranged on a side of the shell away from the human face, and the display and the sound generator are electrically connected to the oxygen concentration sensor.

[0025] In a second aspect, an embodiment of the utility model provides a ventilation therapy device, comprising a breathing mask as described in any of the aforementioned embodiments.

[0026] The breathing mask provided by the embodiment of the utility model includes a shell, a first pad and a second pad. As the components of the elastic contact circle, the first pad and the second pad are connected to the shell and supported and fixed by the shell, and are in contact with the outer circle of the mouth and nose of the human body mask. The second pad is arranged around the outer circle of the first pad, so that the first pad and the second pad are in contact with different positions of the face. The first pad and the second pad are both provided with vents, and each vent can independently control the expansion or contraction state of the corresponding pad through air intake or air release. For example, when the expansion degree of the second pad is greater than the expansion degree of the first pad, or the first pad is expanded while the first pad is contracted, the skin of the outer circle area of ​​the face that is in contact with the second pad is subjected to greater pressure, and the skin of the inner circle area that is in contact with the first pad is subjected to less pressure. After a period of time, the state is switched, so that the expansion degree of the first pad is greater than the expansion degree of the second pad, or the first pad is expanded while the second pad is contracted, then the skin of the inner circle area of ​​the face that is in contact with the first pad is subjected to greater pressure, and the skin of the outer circle area that is in contact with the second pad is subjected to less pressure. By switching the deformation states of the first pad and the second pad in this way, the skin in the same part of the face can be prevented from being compressed by the mask for a long time, and damage to the skin tissue on the face and irreversible indentations can be effectively reduced.

[0027] The ventilation therapy device provided in the embodiment of the utility model has the same advantages as the breathing mask provided in the above embodiment, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0029] Figure 1 It is a schematic diagram of the structure of the breathing mask provided by the embodiment of the utility model along a certain direction;

[0030] Figure 2 It is a schematic diagram of the structure of the breathing mask provided by the embodiment of the utility model along another direction;

[0031] Figure 3 This is a schematic diagram of the structure of the breathing mask provided by the embodiment of the utility model in contact with the face side;

[0032] Figure 4It is a schematic diagram of the positions of the first gasket and the second gasket in the embodiment of the present utility model;

[0033] Figure 5 It is a schematic diagram of the connection component and the air delivery pipe structure in the embodiment of the present utility model;

[0034] Figure 6 It is a schematic diagram of the air guiding component structure in the embodiment of the present utility model.

[0035] Reference numerals:

[0036] 1 - housing, 11 - through hole, 2 - elastic contact ring, 21 - first gasket, 22 - second gasket, 23 - ventilation port, 231 - first ventilation port, 232 - second ventilation port, 3 - air guiding component, 31 - air guiding pipe, 311 - opening, 312 - first air guiding part, 313 - second air guiding part, 314 - third air guiding part, 32 - shielding piece, 33 - elastic member, 4 - connection component, 41 - connection seat, 42 - connection head, 421 - spherical cavity, 5 - air delivery pipe, 6 - display, 7 - sound generator, 8 - air pumping device, 81 - air pipe. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0038] The terms "first", "second", etc. in the specification and claims of the present utility model are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present utility model can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are usually of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0039] Next, in conjunction with the accompanying drawings, the respiratory mask and the ventilation treatment device provided by the embodiments of the present utility model will be described in detail through specific embodiments and their application scenarios.

[0040] The embodiment of the present utility model provides a respiratory mask, referring to Figures 1 to 4, including a housing 1, a first gasket 21 and a second gasket 22; the first gasket 21 and the second gasket 22 are both connected to the housing 1, the first gasket 21 and the second gasket 22 are both annular and have inner cavities, the second gasket 22 surrounds the first gasket 21, and the sides of the first gasket 21 and the second gasket 22 facing away from the housing 1 are used to contact the human face; the first gasket 21 and the second gasket 22 are both provided with ventilation openings 23, the ventilation openings 23 are communicated with the inner cavities, and the ventilation openings 23 are used for air intake or air release, so that the first gasket 21 and the second gasket 22 can be switched between the expanded state and the contracted state.

[0041] Specifically, as Figures 1 to 3 shown, the breathing mask is made of plastic, silicone, rubber or other durable and soft materials to ensure comfort and durability. The breathing mask includes a housing 1 and an elastic contact ring 2, and the elastic contact ring 2 is connected to the inner side of the housing 1 and is used to contact and fit with the human face. The housing 1 is a transparent housing, which is convenient for observing the human breathing state. As Figure 4 shown, the elastic contact ring 2 includes a first gasket 21 and a second gasket 22. The first gasket 21 and the second gasket 22 are both annular and have inner cavities that can be contracted and deformed, and are used to contact the human face to maintain the fit between the breathing mask and the face. The first gasket 21 and the second gasket 22 can be arranged in a fitting manner or at intervals to leave a certain space for expansion and deformation. The first gasket 21 and the second gasket 22 both have ventilation openings 23. Among them, the first ventilation opening 231 is communicated with the inner cavity of the first gasket 21, and the second ventilation opening 232 is communicated with the inner cavity of the second gasket 22. Each ventilation opening 23 can independently control the expansion or contraction state of the corresponding gasket through its own air intake or air release action. The ventilation openings 23 of the first gasket 21 and the second gasket 22 are arranged at intervals and do not affect each other. Manual or automatic control devices can be used to intake or release air from the ventilation openings 23.

[0042] As Figure 4As shown, the working process of the breathing mask is as follows: In one embodiment, the second air inlet 232 is controlled to admit air, and the first air outlet 231 is controlled to release air, so that the second gasket 22 expands and the first gasket 21 contracts and deflates. Alternatively, the air intake rate of the second air inlet 232 is controlled to be greater than the air intake rate of the first air outlet 231, so that the degree of expansion of the second gasket 22 is greater than that of the first gasket 21. At this time, the skin in the outer ring area where the face fits with the second gasket 22 is subjected to greater pressure, and the skin in the inner ring area where it fits with the first gasket 21 is subjected to less pressure. After maintaining this state for a period of time, another state is switched. In another embodiment, the second air inlet 232 is controlled to release air, and the first air outlet 231 is controlled to admit air, so that the first gasket 21 expands and the second gasket 22 contracts and deflates. Alternatively, the air intake rate of the first air outlet 231 is controlled to be greater than the air intake rate of the second air inlet 232, so that the degree of expansion of the first gasket 21 is greater than that of the second gasket 22. At this time, the skin in the inner ring area where the face fits with the first gasket 21 is subjected to greater pressure, and the skin in the outer ring area where it fits with the second gasket 22 is subjected to less pressure. The area of the facial skin being compressed changes, and the facial area that was continuously compressed in the previous process is relieved and relaxed to a certain extent in the subsequent process.

[0043] In the breathing mask provided by the embodiment of the present utility model, the first gasket and the second gasket are provided with independent air inlets and outlets. By different actions of admitting air or releasing air, the first gasket and the second gasket are in different deformation states, and the area in contact with the skin can be switched, avoiding the skin of the same part of the face being continuously pressed by the mask, and effectively reducing the damage to the facial skin tissue of the human body and irreversible indentations.

[0044] Optionally, referring to Figure 2 、 Figure 4 and Figure 6 The breathing mask further includes two air guiding components 3; each air guiding component includes an air guiding pipe 31, a shielding piece 32 and an elastic member 33. One air guiding component 3 is connected to each of the first gasket 21 and the second gasket 22. The air guiding pipe 31 is communicated with the air inlet and outlet 23. One end of the air guiding pipe 31 away from the air inlet and outlet 23 has an opening 311. One end of the elastic member 33 is fixed inside the air guiding pipe 31, and the other end abuts against the shielding piece 32. The elastic force of the elastic member 33 is used to move the shielding piece 32 towards the direction close to the opening 311 and shield the opening 311.

[0045] Specifically, as shown in Figure 2 、 Figure 4 and Figure 6As shown, air guiding components 3 are connected to the air vents 23 of the first gasket 21 and the second gasket 22, and the air guiding components 3 connected to the two gaskets can work independently. The air guiding component includes an air guiding pipe 31, a shielding piece 32 and an elastic member 33. The air guiding pipe 31 communicates with the air vent 23, and the end of the air guiding pipe 31 facing away from the air vent 23, that is, the outer end of the air guiding pipe 31, has an opening 311. The elastic member 33 and the shielding piece 32 are located inside the air guiding pipe 31. One end of the elastic member 33 is fixed to the inner wall of the air guiding pipe 31, and the other end abuts against the shielding piece 32. In the natural state, the elastic member 33 abuts against the shielding piece 32 by the action of elastic force, so that the shielding piece 32 shields the opening 311 to form a seal. At this time, the opening 311 is closed and no air can enter.

[0046] When it is necessary to inflate the gasket, insert the air pipe 81 of the air pumping device 8 into the opening 311 and inflate the air guiding pipe 31 by pinching or applying pressure. Under the push of the air pressure, the shielding piece 32 moves along the positive X direction against the elastic force, so that the opening 311 is opened, and the air guiding pipe 31 can be continuously inflated, causing the gasket to expand. After the inflation process is completed, pull out the air pipe 81 of the air pumping device 8. At this time, under the action of the elastic force, the shielding piece 32 is pushed by the elastic member 33 to move along the negative X direction to shield the opening 311 to form a seal. At this time, the opening 311 is closed.

[0047] When it is necessary to deflate the gasket, first squeeze the air pumping device 8 to deflate it but leave a certain amount of air, and then insert the air pipe 81 of the air pumping device 8 into the air guiding pipe 31 through the opening 311. Continue to squeeze the air pumping device 8. Under the push of the air pressure, the shielding piece 32 moves along the positive X direction against the elastic force, so that the opening 311 is opened, and the air in the air guiding pipe 31 enters the air pumping device 8 through the opening 311, and the gasket gradually shrinks and deflates. Therefore, through the above inflation and deflation operations, the first gasket 21 and the second gasket 22 can be respectively controlled to be in different deformation states. This kind of air guiding component has a simple structure and convenient inflation and deflation operation processes.

[0048] Optionally, referring to Figure 6 , the air guiding pipe 31 includes a first air guiding portion 312, a second air guiding portion 313 and a third air guiding portion 314 arranged in sequence along the axial direction; the diameter of the second air guiding portion 313 is larger than the diameters of the first air guiding portion 312 and the third air guiding portion 314. One end of the elastic member 33 is fixed to the end of the second air guiding portion 313 facing the first air guiding portion 312, and the shielding piece 32 can move to the end of the second air guiding portion 313 facing the third air guiding portion 314 under the elastic force of the elastic member 33, and the third air guiding portion 314 is provided with the opening 311.

[0049] Specifically, as Figure 6As shown, the air duct 31 has a variable diameter structure. The diameter of the second air guiding part 313 in the middle is larger than the diameters of the first air guiding part 312 and the third air guiding part 314 at both ends. The width of the elastic member 33 is larger than the diameter of the first air guiding part 312, so that the left end of the elastic member 33 can be clamped at the left end of the second air guiding part 313 without moving. The width of the shielding piece 32 is larger than the diameter of the third air guiding part 314 and smaller than the diameter of the second air guiding part 313, so that the shielding piece 32 can move in the second air guiding part 313 without slipping into the third air guiding part 314. One end of the third air guiding part 314 is an opening 311. In the natural state, the elastic member 33 abuts against the shielding piece 32 by the elastic force, so that the shielding piece 32 is clamped at the right end of the second air guiding part 313 to block the opening 311, which is convenient for fixing and limiting without moving.

[0050] Optionally, the breathing mask further includes a pressure sensor; pressure sensors are arranged in the inner cavities of the first gasket 21 and the second gasket 22.

[0051] Specifically, arranging pressure sensors in the inner cavities of the first gasket 21 and the second gasket 22 can intuitively reflect the air pressure difference inside the first gasket 21 and the second gasket 22, which is convenient for the operator to select the actions of inflating or deflating. For example, within a certain period of time, if the pressure sensor detects that the air pressure in the first gasket 21 is greater than the air pressure in the second gasket 22, then the skin in the inner ring area where the face contacts the first gasket 21 is subjected to greater pressure. Based on this, the operator selects to deflate the first gasket 21 and inflate the second gasket 22 at the same time to relieve the pressure on the skin in the inner ring area.

[0052] Optionally, referring to Figure 1 and Figure 2 , the breathing mask further includes a connecting component 4 and an air delivery tube 5; a through hole 11 is provided on the housing 1, one end of the through hole 11 is connected to the air delivery tube 5 through the connecting component 4, and the other end of the through hole 11 is used to communicate with the human mouth and / or nose.

[0053] Specifically, as Figure 1 and Figure 2 shown, the connecting component 4 is connected to the through hole 11 on the housing 1, and the air delivery tube 5 is connected to the connecting component 4 to deliver therapeutic gas to the human mouth and / or nose, and the therapeutic gas includes oxygen.

[0054] Optionally, referring to Figure 1 , Figure 2 and Figure 5, the connection component 4 includes a connection base 41 and a connection head 42; the connection base 41 is fixed to the housing 1, the connection head 42 is spherical, the connection head 42 is located inside the connection base 41 and is hinged to the connection base 41, the connection head 42 can rotate relative to the connection base 41 in any direction, the connection head 42 has a spherical cavity 421 communicating with the through hole 11, and the air delivery pipe 5 extends into the connection base 41 and communicates with the spherical cavity 421.

[0055] Optionally, as Figure 1 , Figure 2 and Figure 5 shown, the connection base 41 has a fixed support function, the connection head 42 is a universal joint, is arranged inside the connection base 41 and is hinged to the connection base 41. The air delivery pipe 5 communicates with the spherical cavity 421 inside the connection head 42, and then communicates with the through hole 11. The treatment gas delivered through the air delivery pipe 5 enters the mouth and / or nose of the human body through the spherical cavity 421 and the through hole 11. The connection head 42 can rotate freely without causing the air delivery pipe 5 to bend, avoiding problems such as oxygen blockage caused by the bending of the air delivery pipe 5, and no matter what angle the connection head 42 rotates to, a certain sealing effect can be maintained between it and the connection base 41, without affecting the size of the oxygen flow cross-section, ensuring smooth ventilation.

[0056] Optionally, referring to Figure 4 , one side of the first gasket 21 and the second gasket 22 facing away from the housing 1 is curved.

[0057] Optionally, as Figure 4 shown, the first gasket 21 and the second gasket 22 are flat, especially the side of the first gasket 21 and the second gasket 22 in contact with the human face is a smooth curved surface, which can increase the contact area between the gasket and the face, disperse the local pressure, relieve the facial compression feeling, and at the same time maintain a good sealing effect.

[0058] Optionally, referring to Figure 1 and Figure 2 , the breathing mask further includes an oxygen concentration sensor; the oxygen concentration sensor is arranged on the side of the housing 1 facing the human face.

[0059] Optionally, referring to Figure 1 and Figure 2 , the breathing mask further includes a display 6 and a sound generator 7; the display 6 and the sound generator 7 are arranged on the side of the housing 1 facing away from the human face, and the display 6 and the sound generator 7 are electrically connected to the oxygen concentration sensor.

[0060] Optionally, as Figure 1 and Figure 2As shown, an oxygen concentration sensor is provided inside the housing 1 for real-time detection of the oxygen concentration inside the face mask. A display 6 and a sound generator 7 are provided outside the housing 1. The display 6 and the sound generator 7 are electrically connected to the oxygen concentration sensor respectively to display the oxygen concentration value and emit a prompt sound. When the oxygen concentration sensor detects a difference between the oxygen concentration parameter and the set parameter, the sound generator 7 emits a prompt sound to remind the patient's family member or medical staff. The display 6 intuitively reflects the oxygen concentration value to quickly discover and solve the abnormality. Compared with the related technology of setting the oxygen concentration sensor in an oxygen concentrator, in this embodiment, the oxygen concentration sensor is set in the breathing face mask, which is close to the mouth and nose parts, making the detection data more reliable and real.

[0061] The embodiment of the present invention also provides a ventilation treatment device, including the breathing face mask described in any one of the above embodiments. The breathing face mask is communicated with an oxygen supply device through an air delivery tube 5. It improves the compression feeling of the breathing face mask on the same part of the patient's face for a long time, thereby enhancing the treatment comfort.

[0062] It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article or device including the element.

[0063] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the purpose of the present invention and the scope protected by the claims, and all belong to the protection scope of the present invention.

Claims

1. A breathing mask, characterized in that: It includes a shell, a first liner and a second liner; The first pad and the second pad are both connected to the shell, the first pad and the second pad are both annular and have an inner cavity, the second pad is arranged outside the first pad, and the first pad and the second pad are used to contact the human face at a side away from the shell; The first cushion and the second cushion are both provided with vents, the vents are communicated with the inner cavity, and the vents are used for air intake or air discharge so as to switch the first cushion and the second cushion between expansion and contraction states.

2. The breathing mask according to claim 1, characterized in that The breathing mask also includes two air guide components; The air guide component includes an air guide tube, a shielding sheet and an elastic member. The first pad and the second pad are each connected to an air guide component. The air guide tube is connected to the air vent. The end of the air guide tube away from the air vent has an opening. One end of the elastic member is fixed in the air guide tube, and the other end abuts against the shielding sheet. The elastic force of the elastic member is used to move the shielding sheet toward the opening and shield the opening.

3. The breathing mask according to claim 2, characterized in that The air guide pipe comprises a first air guide portion, a second air guide portion and a third air guide portion which are sequentially arranged along the axial direction; The diameter of the second air guide portion is larger than that of the first air guide portion and the third air guide portion. One end of the elastic member is fixed to the end of the second air guide portion facing the first air guide portion. The shielding sheet can be moved to the end of the second air guide portion facing the third air guide portion under the elastic force of the elastic member. The third air guide portion is provided with the opening.

4. The breathing mask according to claim 1, characterized in that The breathing mask also includes an air pressure sensor; Air pressure sensors are disposed in the inner cavities of the first pad and the second pad.

5. The breathing mask according to claim 1, characterized in that The breathing mask also includes a connecting component and an air delivery pipe; The shell is provided with a through hole, one end of the through hole is connected to the air delivery pipe through the connecting assembly, and the other end of the through hole is used to communicate with the mouth and / or nose of the human body.

6. The breathing mask according to claim 5, characterized in that The connecting assembly comprises a connecting seat and a connecting head; The connecting seat is fixed on the shell, the connecting head is spherical, the connecting head is located inside the connecting seat and is hinged to the connecting seat, the connecting head can rotate relative to the connecting seat in any direction, the connecting head has a spherical cavity connected to the through hole, and the air supply pipe extends into the connecting seat and is connected to the spherical cavity.

7. The breathing mask according to claim 1, characterized in that The first gasket and the second gasket have a curved surface at a side facing away from the shell.

8. The breathing mask according to claim 1, characterized in that The breathing mask also includes an oxygen concentration sensor; The oxygen concentration sensor is arranged on a side of the shell facing the human face.

9. The breathing mask according to claim 8, characterized in that The breathing mask also includes a display and a sound generator; The display and the sound generator are arranged on a side of the shell away from the human face, and the display and the sound generator are electrically connected to the oxygen concentration sensor.

10. A ventilation therapy device, characterized in that: A breathing mask comprising any one of claims 1 to 9.

Images