CN110652639A

CN110652639A - Respiratory therapy equipment

Info

Publication number: CN110652639A
Application number: CN201910960469.2A
Authority: CN
Inventors: 雷宇; 徐结兵; 于海滨; 胡振湘
Original assignee: Dongguan Yongsheng Medical Technology Co Ltd; DONGGUAN VINCENT MEDICAL Manufacturing Co Ltd
Current assignee: Dongguan Yongsheng Medical Technology Co Ltd; DONGGUAN VINCENT MEDICAL Manufacturing Co Ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-01-07

Abstract

The invention discloses a respiratory therapy device, wherein the respiratory therapy device comprises: a gas flow channel having a gas outlet; the respiratory therapy apparatus further comprises: connecting a joint; the connection fitting is removably mounted at an air outlet of the gas flow passage and is in fluid communication with the gas flow passage. Therefore, the respiratory therapy equipment provided by the invention can use the connecting joint as a new air outlet, so that the contact between the gas exhaled by the patient and the original air outlet is reduced or even prevented, when the gas needs to be cleaned, the connecting joint is detached for cleaning, and the problem that in the prior art, the air outlet of the respiratory therapy equipment needs to be cleaned frequently due to the fact that some gas conveying pipes convey the gas exhaled by the patient to the air outlet of the respiratory therapy equipment, but the cleaning effect is poor due to the inherent inconvenience of long pipe cleaning is solved.

Description

Respiratory therapy equipment

Technical Field

The invention relates to the technical field of respiratory therapy equipment, in particular to respiratory therapy equipment.

Background

Respiratory therapy equipment is a general term for equipment used for assisting breathing or utilizing breathing to perform treatments such as anesthesia in a medical system, and includes a humidifier (a breathing machine or an air supply device is used in cooperation, and the air breathed by a patient is heated and humidified by a humidification tank mounted on the humidifier and then is delivered to the patient requiring mechanical ventilation or pressurized breathing), a high-frequency jet ventilator, a noninvasive ventilator, a portable pulmonary function instrument, an atomizer, a respiratory anesthesia machine and the like, which all belong to respiratory therapy equipment.

Respiratory therapy equipment usually conveys gas to a patient through a gas conveying pipe (such as a nasal oxygen tube, an oxygen inhalation tube and the like), and most of the gas conveying pipes (such as an oxygen inhalation mask and the like) can guide the gas exhaled by the patient back to the gas outlet of the respiratory therapy equipment, so that the gas outlet of the respiratory therapy equipment is often required to be cleaned, but the cleaning effect is poor due to the inherent inconvenience of long pipe cleaning.

It can be seen that the prior art is still in need of improvement and development.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a respiratory therapy apparatus, which aims to solve the problem that the air outlet of the respiratory therapy apparatus is often cleaned due to the fact that some air delivery pipes deliver the air exhaled by the patient to the air outlet of the respiratory therapy apparatus, but the cleaning effect is not good due to the inherent inconvenience of long pipe cleaning.

The technical scheme of the invention is as follows:

a respiratory therapy apparatus comprising: a gas flow channel having a gas outlet; the respiratory therapy apparatus further comprises: connecting a joint; the connection fitting is removably mounted at an air outlet of the gas flow passage and is in fluid communication with the gas flow passage.

In a further preferred scheme, a one-way valve is arranged in the connecting joint.

In a further preferred scheme, the one-way valve is a silica gel sheet.

In a further preferable scheme, a support rib used for abutting against the silica gel sheet is further arranged on the inner side of the connecting joint.

In a further preferred embodiment, the connection joint protrudes from the housing of the respiratory therapy device at an end facing away from the respiratory therapy device.

In a further preferred aspect, the respiratory therapy apparatus further comprises: the first filter is detachably arranged at the gas outlet of the gas flow passage.

In a further preferred aspect, the first filter is sandwiched inside the connection joint.

In a further preferred aspect, the respiratory therapy apparatus further comprises: a second filter; the gas flow passage is also provided with a gas inlet, and the second filter is detachably arranged on the gas inlet of the gas flow passage.

In a further preferred aspect, the respiratory therapy apparatus further comprises: and the circulating pipeline is used for connecting the connecting joint and the gas inlet of the gas flow channel when the respiratory therapy equipment carries out gas flow channel disinfection.

In a further preferred aspect, the respiratory therapy apparatus further comprises: the heating device is used for starting when the respiratory therapy equipment carries out gas flow channel disinfection;

the heating device is arranged in the gas flow channel, or the heating device is arranged in the circulating pipeline.

In a further preferred aspect, the respiratory therapy apparatus further comprises: a sealing member installed at an air outlet of the gas flow passage.

In a further preferred scheme, the sealing element is a sealing ring, and the sealing ring is arranged on the inner wall of the connecting joint and/or the outer wall of the humidifying cylinder air inlet pipe.

In a further preferable scheme, the outer end of the sealing ring is provided with a lug, the lug is formed on the inner side wall of the sealing ring, and the lug is used for deforming and clinging to the outer wall of the humidifying tank air inlet pipe when the humidifying tank air inlet pipe or the gas conveying pipe is inserted into the respiratory therapy equipment.

In a further preferred version, the inner wall of the sealing ring is provided with an annular groove for receiving at least a portion of the outer end lug in the deformed state.

Compared with the prior art, the respiratory therapy equipment provided by the invention comprises: the connector is located at the air outlet of the respiratory therapy equipment and detachably connected with the respiratory therapy equipment. Therefore, the respiratory therapy equipment provided by the invention can use the connecting joint as a new air outlet, so that the contact between the gas exhaled by the patient and the original air outlet is reduced or even prevented, when the gas needs to be cleaned, the connecting joint is detached for cleaning, and the problem that in the prior art, the air outlet of the respiratory therapy equipment needs to be cleaned frequently due to the fact that some gas conveying pipes convey the gas exhaled by the patient to the air outlet of the respiratory therapy equipment, but the cleaning effect is poor due to the inherent inconvenience of long pipe cleaning is solved.

Drawings

Fig. 1 is an exploded view from a first perspective of an exemplary humidifier used in accordance with a preferred embodiment of the present invention.

Fig. 2 is a schematic diagram of a second perspective of an exemplary humidifier in accordance with a preferred embodiment of the present invention.

Fig. 3 is a schematic diagram of a third perspective of an exemplary humidifier in accordance with a preferred embodiment of the present invention.

FIG. 4 is a cross-sectional view of an exemplary humidifier used in accordance with a preferred embodiment of the present invention.

Fig. 5 is an enlarged view of a portion a in fig. 4.

Fig. 6 is a cross-sectional view of a schematic connection of a respiratory therapy apparatus to a humidification canister in a preferred embodiment of the invention.

Fig. 7 is an enlarged view of a portion B in fig. 6.

Fig. 8 is a schematic view showing the connection of the respiratory therapy apparatus to the circulation conduit in the preferred embodiment of the present invention.

Detailed Description

The present invention provides a respiratory therapy apparatus, and in order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Taking an oxygen supply system formed by matching respiratory therapy equipment (preferably respiratory therapy equipment integrating functions of a breathing machine and a humidifier), a humidifying tank and a gas conveying pipe as an example, a gas flow channel is arranged in the respiratory therapy equipment, high-pressure oxygen is sucked in through a gas inlet of the gas flow channel and air is sucked in from the outside, the high-pressure oxygen and the air are mixed and then conveyed to the humidifying tank from a gas outlet of the gas flow channel, mixed gas with the temperature and the humidity reaching preset values is formed after the humidifying tank is heated, and then the mixed gas is conveyed to a patient through the gas conveying pipe to be used by the patient; and a part of the air exhaled by the patient flows back to the humidification tank along the air delivery pipe and flows to the pipe wall of the air outlet of the humidification device. The gas exhaled by the patient may carry bacteria or viruses, so that the pipe wall at the gas outlet of the airflow channel needs to be cleaned, but the inner wall of the pipeline at the gas outlet is not easy to clean, and therefore, the cleaning effect cannot be guaranteed; if the whole humidifier is disassembled to be cleaned, the workload and the cleaning difficulty are greatly increased, and the specialty is needed to be strong. The problems of other respiratory treatment equipment are almost the same as the problems of the prior art, if a detachable structural part can be used for replacing the pipeline which originally forms the air outlet, the gas exhaled by the patient can be contacted with the respiratory treatment equipment, so that the gas exhaled by the patient is reduced or even prevented from being contacted by the original air outlet pipe wall which is inconvenient to detach, and the convenience and the effect of cleaning are improved.

Based on the above thought, the invention provides a respiratory therapy device, which comprises a gas flow passage, wherein the gas flow passage can be completely arranged in the respiratory therapy device, or completely arranged outside the respiratory therapy device, or arranged in combination of inside and outside. The gas flow channel is provided with a gas inlet and a gas outlet, wherein one or more gas inlets can be arranged, and the gas inlets can be used for inputting one gas or multiple gases. The gas outlet of the gas flow passage is used for being communicated with the humidification tank, and the gas outlet of the gas flow passage is provided with a detachable connecting joint which is communicated with the gas inlet of the humidification tank through the connecting joint. The connection joint may be installed in various forms, such as the connection joint is abutted against the outlet of the gas flow channel, or the connection joint is inserted into the gas flow channel, or the gas outlet end of the gas flow channel is inserted into the connection joint, or the connection joint is detachably fixed to the housing 140 of the respiratory therapy apparatus, or the connection joint is detachably fixed to other structures of the respiratory therapy apparatus.

When the connecting joint is completely arranged in the air outlet of the respiratory therapy equipment body (namely the connecting joint does not protrude out of the shell of the respiratory therapy equipment body), the connecting joint is contacted with the gas exhaled by the patient by replacing an air outlet pipeline of the respiratory therapy equipment body, so that the air outlet pipeline does not need to be cleaned, and only the connecting joint needs to be cleaned; because the connector can be dismantled and connect in respiratory therapy equipment, consequently, when the connector need clear up, directly dismantle the connector can. The present invention is not particularly limited to the specific cleaning method, and those skilled in the art can select the cleaning method according to the kind of the respiratory therapy apparatus, the place of use, the disease of the patient, and the like, such as a thermal sterilization method, a chemical sterilization method, and the like.

When the connecting joint part is arranged at the air outlet of the respiratory therapy equipment body and the other part protrudes out of the shell of the respiratory therapy equipment body, the protruding part can be used for connecting a humidification tank part or a respiratory air pipeline and the like. Meanwhile, the connecting joint protrudes out of the shell of the respiratory therapy equipment, and the connecting joint is convenient to disassemble. For example, the gas channel is rotatable and detachable, a protrusion (or a groove) is arranged on a channel wall at the gas outlet of the gas channel, a groove (or a protrusion) is arranged around the connecting joint, and the connecting joint is clamped and fixed by the protrusion clamped in the groove when rotating. When a user needs to disassemble the connecting joint for replacement or disinfection, the protruding part of the connecting joint is convenient for the user to hold by hand, and the connecting joint can be disassembled after the user carries out knob on the connecting joint.

In addition, the connecting joint is provided with the protruding part, when the air inlet pipeline of the humidification tank is inserted into the connecting joint, the contact area between the air inlet pipeline of the humidification tank and the connecting joint is increased, the connection sealing performance of the air inlet pipeline of the humidification tank and the connecting joint is improved, and gas is prevented from leaking between the connecting joint and the air inlet pipeline of the humidification tank. On the basis, in order to further improve the air tightness between the connecting joint and the air inlet pipeline of the humidification tank, a sealing element is preferably arranged on the inner wall of the connecting joint or the outer wall of the air inlet pipeline of the humidification tank, and the sealing element can be fixedly arranged or detachably arranged. The specific structure of the seal is not limited, such as a seal ring, a seal layer, or more, as would be readily understood by one skilled in the art. In the present application, it is preferable that the sealing member is a sealing ring 170, and as shown in fig. 5, the sealing ring 170 is disposed on the inner wall surface of the connection joint, so that when the air inlet pipe of the humidification tank is inserted from the outer end to the inner end of the connection joint, the sealing ring is tightly coated on the surface of the air inlet pipe of the humidification tank, thereby improving the air tightness.

The invention will now be described in detail with reference to the preferred construction and operation of the packing ring as illustrated in figures 6 and 7, wherein reference numeral jqg in figure 7 denotes the inlet duct of the humidification canister, 171 denotes the outer end lugs of the packing ring (the dotted lines in figure 7 are not true and are added for clarity of the location of the outer end lugs), 172 denotes the grooves in the inner surface of the packing ring, 173 denotes the body of the packing ring. When the air inlet pipe jqg is inserted and connected to the respiratory therapy equipment, the outer end lug 171 is deformed under the thrust of the air inlet pipe jqg and is squeezed into the groove 172, and after the air inlet pipe jqg is inserted to a specified position, the outer side of the outer end lug 171 is attached to the air inlet pipe jqg, so that the connection sealing performance between the humidification canister and the respiratory therapy equipment is improved (the effect is also achieved by replacing the humidification canister with an air delivery pipe).

Furthermore, because the connecting joint is internally provided with the sealing ring, when the air inlet pipeline of the humidification tank is inserted, the insertion difficulty of the air inlet pipeline can be increased due to the influence of the sealing ring. Therefore, in order to solve the problems, the outer port of the connecting joint is provided with a chamfer, which is equivalent to the outer port of the connecting joint is arranged in a flaring manner, so that the air inlet pipeline of the humidification tank is guided to be inserted, and the air inlet pipeline of the humidification tank is convenient to be inserted.

The situation that the connecting joint completely protrudes out of the shell of the body of the respiratory therapy equipment is the same as the principle, and the description is omitted.

It will be appreciated that there are many ways in which the connection fitting may be connected to the body of the respiratory treatment apparatus, such as: threaded connection, rotary clamping connection, breakable connection or controllable pop-up connection, etc.; however, the present invention is not limited to the above embodiments, and the present invention is not limited to the above embodiments. If the detachable fixing of the connection joint can be realized, no matter the existing structure is directly adopted or the existing structure is improved, the protection scope of the invention should be included, and the part of the structure should not become the reason for the insufficient disclosure of the invention.

Preferably, the port of the connecting joint, which is away from one end of the respiratory therapy equipment, protrudes out of the shell of the respiratory therapy equipment; namely, a part of the connecting joint protrudes out of the shell of the respiratory therapy equipment or protrudes out of the shell of the respiratory therapy equipment completely, so that the convenience of disassembling the connecting joint is improved. Furthermore, it is preferable that a part of the connection joint is embedded in the air outlet of the air flow channel of the respiratory therapy device, and another part protrudes out of the housing, so as to improve the convenience of detaching the connection joint, and improve the air tightness between the connection joint and the air outlet pipeline, so as to prevent air leakage, as schematically illustrated by the humidifier 100 shown in fig. 1 to 5, in the drawings, 111 represents the air inlet of the air flow channel of the

humidifier

100, 112 represents the high-pressure oxygen inlet of the air flow channel of the

humidifier

100, 113 represents the air outlet of the air flow channel of the

humidifier

100, 120 represents the connection joint, and 140 represents the housing of the humidifier body; a part of the connecting joint 120 protrudes out of the shell 140 of the humidifier body, and a part of the connecting joint is positioned in a gas flow channel of the humidifier; the specific schematic structure of the connector 120 is not described in detail, but is only one of many preferred embodiments of the present invention.

As a preferred embodiment of the present invention, the respiratory therapy apparatus further comprises: a first filter 130 (such as the filter 130 shown in fig. 1, which is used in other respiratory therapy devices and is not described in detail), wherein the first filter 130 is detachably or non-detachably disposed at an air outlet of the respiratory therapy device. It is preferable that the first filter 130 is detachably installed, and the fixing position of the first filter is not particularly limited. For example, the first filter may be mounted on the outside of the connection joint 120, i.e. the side of the connection joint facing away from the air outlet; in this manner, the first filter may be detachably connected to the housing 140 of the respiratory therapy apparatus, or the first filter may be detachably connected to the connection joint. Alternatively, the first filter may be removably mounted within the connection joint 120. Further alternatively, the first filter may be detachably mounted inside the connection joint 120, that is, as shown in fig. 1, the first filter 130 is sandwiched between the respiratory therapy apparatus body and the connection joint 120; in this scheme, can set up first filter and can dismantle with respiratory therapy equipment's shell 140 and be connected, also can set up first filter and connect the joint and can dismantle and be connected, more perhaps first filter is direct to be pressed from both sides between respiratory therapy equipment's shell 140 and connect, therefore connect and pull down and can take out first filter.

The provision of the first filter 130 provides several advantages.

When the first filter 130 is used for filtering (gas filter, PTFE filter, etc.), the foreign matters in the gas inhaled by the patient (such as microorganisms, moisture, etc., which are all considered as foreign matters for the substances not suitable for the patient to inhale) can be reduced, but the invention is not limited to filtering all the foreign matters, as long as the gas quality can be improved, such as only the moisture or small portion of microorganisms therein is required to be filtered out). Meanwhile, the first filter 130 can also avoid the problem of cross infection caused by the fact that viruses or bacteria carried by the gas exhaled by the patient enter the gas channel through the gas outlet of the gas channel to remain and breed.

When the first filter 130 is embodied as a speed-reducing filter (simple filter cotton, a fine and compact filter net, a PTFE membrane filter, etc.) for reducing the gas flow speed, the gas flow speed can be reduced to make it suitable for the user to inhale, so as to prevent the gas flow speed from being too fast and avoid the patient from breathing unsmoothly; when the first filter 130 is used for filtering foreign matters in the gas and reducing the gas flow speed, it has all the advantages and effects of the above two items, and will not be described again.

It can be understood that no matter which kind of filter first filter 130 specifically is, all can with connector cooperation is used, and the effect of dismantling of performance connector guarantees on the one hand that connector conveniently dismantles, convenient clearance, and on the other hand guarantees that the filter is convenient to be dismantled, convenient clearance, convenient change, and when connector was in the mounted state, on the other hand again, guarantees that the filter is spacing in respiratory therapy equipment's gas flow path.

Preferably, the inner side of the connecting joint is provided with a one-way valve, and the one-way valve can avoid the problem that bacteria and viruses carried by the exhaled gas of the patient flow back into the gas flow channel to cause cross infection when the next patient uses the device.

It is to be easily understood that the present invention is not particularly limited to the specific structure of the check valve as long as the gas can be prevented from flowing backward to the gas flow passage. However, in order to reduce the space occupied by the check valve, the check valve is a silicon sheet 150, as shown in fig. 5; in order to improve the position setting reliability of the silicone sheet 150, the invention further provides a support rib 160, as shown in fig. 5, and the support rib 160 is abutted against the silicone sheet 150 to limit the position. It should be noted here that the one-way valve can be used alone as a preferred embodiment, or can be combined with a connection fitting and/or a filter to form a preferred embodiment.

As a modification of the above preferred embodiment, the first filter 130 is not only located in the gas flow path, but also engages the connection fitting to further reduce the probability or amount of contact between the patient's exhaled gas and the outlet conduit.

As another improvement of the above preferred embodiment, the first filter 130 is disposed inside the connection joint or sandwiched between the housing of the respiratory therapy apparatus and the connection joint, thereby further reducing the probability or amount of contact between the patient's exhaled gas and the outlet conduit; and secondly, the convenience of disassembling the first filter 130 is improved. When the connecting joint is disassembled, the first filter 130 can be disassembled together, and if the first filter 130 can adopt the same disinfection and cleaning mode as the connecting joint, the first filter 130 and the connecting joint can be directly disinfected and cleaned simultaneously; if the first filter 130 needs to be replaced, the first filter 130 can be removed from the connecting joint for replacement, and the first filter 130 and the connecting joint need to be cleaned and disinfected respectively.

There are many structures available for disposing the first filter 130 inside the connection joint, such as a transition fit manner for directly disposing the first filter 130 inside the connection joint, and further, such as a screw connection, a snap connection, etc. In addition to the embodiment that the first filter 130 is completely embedded in the connection joint, the connection part of the first filter 130 can be connected with the connection joint, and the filter part is externally arranged on the connection joint, so that the two can be detached simultaneously.

Preferably, the respiratory therapy apparatus further comprises: a second filter detachably disposed at the air inlet 111 of the respiratory therapy apparatus. The second filter is specifically a foreign matter filter for filtering foreign matters in the gas, which can be referred to the above description of the first filter 130, and details are not repeated.

According to another aspect of the invention, the respiratory therapy apparatus further comprises: a circulation line 200, as shown in fig. 8; the circulation pipeline 200 is used for connecting between the connecting joint and the air inlet of the respiratory therapy equipment when the respiratory therapy equipment carries out gas flow channel disinfection.

With the circulating line 200 adaptation be, respiratory therapy equipment produces and gives off the heat through the device that generates heat, makes the gas in the gas flow path heat up and become high temperature gas, carries out the disinfection of gas flow path through high temperature gas.

In practical implementation, the heat generating device may be disposed in a gas flow channel of the respiratory therapy apparatus, and may also be disposed in the circulation conduit 200. The gas flow channel of the respiratory therapy equipment and the circulating pipeline 200 form a disinfection gas flow loop, high-temperature gas only flows in the disinfection gas flow loop and cannot be discharged out of the loop, and scalding events caused by the high-temperature gas can be effectively reduced.

It should be noted here that the high-temperature gas sterilizes the gas flow path, and may not necessarily sterilize the gas outlet pipeline, that is, the connection joint is essential to the present invention, and when the heating device may sterilize the connection joint, the connection joint may be sterilized separately without being disassembled; when the heating device can not kill germs carried by the exhaled air of the patient, the connecting joint still needs to be detached for independent disinfection. Further, since the first filter must be sterilized or replaced after use, the first filter needs to be removed by removing the connection joint. That is, the problems solved by the heat generating device and the connection joint are not completely consistent, and the connection joint needs to exist. Also, the provision of a removable connector, the main factor being the replacement of the filter to prevent viruses or bacteria from entering the gas flow path and adhering to the used filter.

Besides, the invention also provides a respiratory therapy device, which is provided with the respiratory therapy device. The respiratory therapy device may specifically be: the invention relates to a humidifier, a high-frequency jet respirator, a noninvasive respirator, a portable pulmonary function instrument, an atomizer, a respiratory anesthesia machine and the like, which are various in types and cannot be enumerated one by one.

It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.

Claims

1. A respiratory therapy apparatus comprising: a gas flow channel having a gas outlet; characterized in that the respiratory treatment apparatus further comprises: connecting a joint; the connection fitting is removably mounted at an air outlet of the gas flow passage and is in fluid communication with the gas flow passage.

2. The respiratory therapy apparatus according to claim 1, wherein a one-way valve is disposed within the connection joint.

3. The respiratory therapy apparatus according to claim 2, wherein the one-way valve is a silicone sheet.

4. The respiratory therapy apparatus according to claim 3, wherein a support rib for abutting against the silicone sheet is further provided inside the connection joint.

5. The respiratory therapy device according to claim 1, wherein the connection joint projects out of a housing of the respiratory therapy device away from an end of the respiratory therapy device.

6. The respiratory therapy apparatus according to claim 1, further comprising: the first filter is detachably arranged at the gas outlet of the gas flow passage.

7. The respiratory therapy apparatus according to claim 6, wherein the first filter is sandwiched inside the connection fitting.

8. The respiratory therapy apparatus according to claim 1, further comprising: a second filter; the gas flow passage is also provided with a gas inlet, and the second filter is detachably arranged on the gas inlet of the gas flow passage.

9. The respiratory therapy apparatus according to any one of claims 1 to 8, further comprising: and the circulating pipeline is used for connecting the connecting joint and the gas inlet of the gas flow channel when the respiratory therapy equipment carries out gas flow channel disinfection.

10. The respiratory therapy apparatus according to claim 9, further comprising: the heating device is used for starting when the respiratory therapy equipment carries out gas flow channel disinfection;

11. The respiratory therapy apparatus according to any one of claims 1 to 8, further comprising: a sealing member installed at an air outlet of the gas flow passage.

12. The respiratory therapy apparatus according to claim 11, wherein the sealing member is a sealing ring disposed on an inner wall of the connection fitting and/or an outer wall of the humidification canister air inlet conduit.

13. The respiratory therapy equipment according to claim 12, wherein the outer end of the sealing ring is provided with a lug, the lug is formed on the inner side wall of the sealing ring, and the lug is used for deforming and clinging to the outer wall of the humidifying tank air inlet pipe when the humidifying tank air inlet pipe or the gas delivery pipe is inserted into the respiratory therapy equipment.

14. The respiratory therapy apparatus according to claim 13, wherein the inner wall of the sealing ring is provided with an annular groove for receiving at least a portion of the outer end lug in the deformed state.