Connector and humidification assembly

Abstract

Embodiments of the present disclosure relate to the technical field of humidification device, and one embodiment of the present disclosure provides a connector, which comprises a plug-in part having a connecting channel for connecting with a connecting port; a clamping part movably or swingably arranged relative to the plug-in part, the clamping part having a clamping portion and a pushing portion, the clamping portion being clamped into or out of a clamping groove after the clamping part is moved or swung; and an unlocking pushing part slidably arranged relative to the plug-in part and pushing the clamping part to swing or move after sliding. Another embodiment of the present disclosure provides a humidification assembly, which comprises the connector and further comprises a humidification part having a humidification cavity, the humidification part having a plug at one end, the plug being connected with the plug-in part, the plug having a connecting port inside, the connecting port being communicated with the humidification cavity; and a plurality of humidification balls placed in the humidification cavity. Through the above technical solutions, the technical problem that the humidification device and the pipe are likely to fall off in the related art is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of humidification device technology, and more specifically, to a connector and humidification component for gas humidification. Background Technology

[0002] A humidifier is a device used to humidify inhaled oxygen, primarily to moisten the respiratory tract. During normal breathing, the respiratory tract humidifies the inhaled air; however, when a large amount of dry oxygen is rapidly inhaled through an oxygen concentrator, the humidification capacity of the respiratory tract is insufficient, easily leading to dryness and damage to the respiratory mucosa. A humidifier increases the humidity of the oxygen, maintaining the moisture of the respiratory mucosa and protecting its physiological functions. It also improves comfort: Dry oxygen can cause respiratory discomfort such as dry throat, sore throat, and dry nose. Humidified oxygen significantly improves patient comfort during oxygen inhalation, reducing various discomfort symptoms caused by dryness and increasing patient acceptance and compliance with oxygen therapy. Furthermore, it aids in expectoration: It helps dilute sputum in the respiratory tract, reducing its viscosity and making it easier to cough up, thereby maintaining airway patency and reducing problems such as infection and breathing difficulties caused by airway obstruction due to sputum. Currently, humidifiers are typically connected using medical tubing, which poses a risk of accidental dislodgement. Utility Model Content

[0003] To overcome the above-mentioned defects, the embodiments of this disclosure provide a connector and a humidification assembly, which solves the technical problem in the related art that the connection between the humidification device and the pipe may fall off.

[0004] According to one aspect, at least one embodiment of this disclosure provides a connector for connection to a plug of a humidifying element, the plug having an internal connection port and an outer wall having a slot, comprising:

[0005] A plug-in having a connection channel for connecting to the connection port;

[0006] A card is provided, which is movable or swingable relative to the plug-in. The card has a locking part and a pushing part. After the card moves or swings, the locking part engages or disengages into the card slot.

[0007] The unlocking pusher is slidably positioned relative to the plug-in, and after sliding, it pushes the card to swing or move.

[0008] For example, the connector provided in at least one embodiment of this disclosure further includes:

[0009] A connecting pad, which is annular, is disposed at the end of the plug and communicates with the connecting channel for insertion by the plug.

[0010] For example, the connector provided in at least one embodiment of this disclosure further includes:

[0011] An adjusting ring is threaded onto the plug, the adjusting ring having a tapered inner wall portion, and the outer wall of the plug also having a tapered outer wall portion, the tapered outer wall portion being used to insert into the tapered inner wall portion.

[0012] For example, in at least one embodiment of the present disclosure, the connector is provided in which the locking element is movable or swinging on the adjusting ring, and the locking element is arranged in a plurality of circumferential circles or is a flexible ring.

[0013] For example, in at least one embodiment of the present disclosure, the connector has an outer wall of the adjusting ring having a receiving groove, and the clip also has a support portion, which is oscillatingly disposed in the receiving groove.

[0014] For example, in at least one embodiment of the connector provided in this disclosure, both the card portion and the card slot have trapezoidal cross sections.

[0015] For example, the connector provided in at least one embodiment of this disclosure further includes:

[0016] A stop is provided on the unlocking pusher and located on the side of the card near the humidifying member, through which the plug passes.

[0017] For example, the connector provided in at least one embodiment of this disclosure further includes:

[0018] The annular connector has a first annular edge on its inner wall and a second annular edge on its outer wall. The first annular edge is engaged between the second annular edge and the plug. The annular connector has a flow meter interface. The unlocking pusher is slidably disposed on the annular connector.

[0019] An elastic element, one end of which acts on the annular connector and the other end of which acts on the unlocking pusher, provides the unlocking pusher to push the card, so that the card part is locked in the card slot.

[0020] The humidification assembly, including the aforementioned connector, further includes:

[0021] A humidifying component, the humidifying component having a humidifying cavity, a plug at one end of the humidifying component, the plug being connected to the plug-in, the plug having a connection port inside, the connection port communicating with the humidifying cavity;

[0022] Humidifying balls, wherein there are multiple humidifying balls, and they are placed inside the humidification chamber.

[0023] For example, the humidification component provided in at least one embodiment of this disclosure further includes:

[0024] A sponge absorbent component is located between the connection port and the humidification chamber via a communication path.

[0025] The beneficial effects of the embodiments disclosed herein are as follows:

[0026] This disclosure significantly improves the reliability of plug-connector connection and the ease of disassembly. During connection, the plug is inserted into the connector, and the locking mechanism engages with the slot; during disassembly, the unlocking pusher pushes the locking mechanism to unlock. The connection and disassembly methods of the humidifier plug and connector are optimized, enhancing safety and convenience of use. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0028] Figure 1 This is a schematic diagram of the connector structure in one embodiment of the present disclosure;

[0029] Figure 2 for Figure 1 A schematic diagram of the internal structure of the connector in the embodiment;

[0030] Figure 3 for Figure 1 A schematic diagram of the plug structure in the embodiment;

[0031] Figure 4 for Figure 1 A schematic diagram of the humidification component in the embodiment;

[0032] In the diagram: Plug-1, Connecting Channel-101, Second Annular Edge-102, Clip-2, Clip Part-201, Pushed Part-202, Support Part-203, Unlocking Push Part-3, Connecting Pad-4, Adjusting Ring-5, Conical Inner Wall Part-501, Receiving Groove-502, Stop Part-6, Annular Connector-7, First Annular Edge-701, Flow Meter Interface Part-702, Elastic Part-8, Humidifying Part-9, Humidifying Chamber-901, Plug-902, Connecting Port-903, Slot-904, Conical Outer Wall Part-905, Humidifying Ball-10, Sponge Absorbent Part-11. Detailed Implementation

[0033] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0034] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0035] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0036] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 disclosure.

[0038] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0039] like Figure 1 , Figure 2As shown, a connector in one embodiment of this disclosure is used to connect to the plug 902 of the humidifier 9. The plug 902 has a connection port 903 inside and a slot 904 on its outer wall. When it is necessary to connect the plug 902 of the humidifier 9 to the connector, the connecting channel 101 of the plug 1 is first aligned with the connection port 903 of the plug 902 and inserted. At this time, by operating the locking piece 2 to move or swing relative to the plug 1, the locking part 201 of the locking piece 2 is locked into the slot 904 on the outer wall of the plug 902, thereby achieving a secure connection and preventing the plug from falling off accidentally. When it is necessary to disassemble, the unlocking pusher 3 is pushed to slide relative to the plug 1. The sliding unlocking pusher 3 pushes the locking piece 2 to swing or move, causing the locking part 201 to release from the slot 904, thereby allowing the plug 902 to be safely pulled out.

[0040] Specifically, this design can be applied in hospital wards, such as when patients are receiving oxygen. The advantages of this design are: firstly, the cooperation between the locking element 2 and the slot 904 ensures a stable connection and reduces the risk of accidental detachment. Secondly, the unlocking pusher 3 makes disassembly simple and convenient, facilitating operation by medical staff or patients. For example, when a patient moves or turns over, the connection between the plug 902 and the connector remains secure and will not break accidentally. Furthermore, when it is necessary to replace the humidifier 9 or perform equipment maintenance, disassembly can be easily achieved through the unlocking pusher 3.

[0041] In terms of technical effectiveness, the reliability of the connection between plug 902 and connector and the ease of disassembly are significantly improved. During connection, plug 1 is inserted into plug 902, and locking piece 2 is engaged with slot 904; during disassembly, unlocking pusher 3 pushes locking piece 2 to unlock. The connection and disassembly method between humidifier plug 902 and connector has been optimized, enhancing safety and convenience of use.

[0042] In some examples, the connecting pad 4 in the connector is annular, mounted on the end of the plug 1, and communicates with the connecting channel 101. When the plug 902 of the humidifier 9 is connected, the plug 902 is inserted into the connecting pad 4.

[0043] The design of the connecting pad 4 has the following advantages: First, it provides excellent sealing performance, preventing oxygen leakage and ensuring the stability and safety of oxygen delivery. Second, it guides and buffers the insertion of the plug 902, making the insertion process smoother and reducing wear.

[0044] For example, in an emergency where it is necessary to quickly connect an oxygen therapy device to a patient, the connection pad 4 ensures that the plug 902 can be quickly and accurately inserted into the connector while maintaining a tight seal.

[0045] In terms of technical effectiveness, the sealing performance and ease of operation of the connector and plug 902 connection are significantly enhanced. The plug 902 is inserted along the connecting pad 4 into the connecting channel 101 to achieve connection and sealing. The optimized connector structure improves the reliability and efficiency of oxygen delivery.

[0046] In some examples, the plug 1 of the connector is threaded with an adjusting ring 5. When the plug 902 of the humidifier 9 is inserted, the tapered outer wall portion 905 of the plug 902 is inserted into the tapered inner wall portion 501 of the adjusting ring 5.

[0047] By rotating the adjusting ring 5, the following advantages can be achieved: First, it can further strengthen the tightness of the connection between the plug 902 and the connector, preventing loosening and leakage. Second, it can fine-tune the tightness of the connection according to actual needs, adapting to different usage conditions. For example, during long-term oxygen supply, even if subjected to certain vibrations or tension, the tightening effect of the adjusting ring 5 can maintain a stable connection between the plug 902 and the connector.

[0048] In terms of technical effectiveness, the stability and adjustability of the connection are significantly improved. After the plug 902 is inserted, rotating the adjusting ring 5 ensures a tight fit between the tapered outer wall 905 and the tapered inner wall 501. This improves the connector's connection mechanism and enhances its reliability and adaptability in use.

[0049] In some examples, the locking element 2 is positioned to move or swing on the adjusting ring 5. The locking element 2 can be designed as several circumferentially arranged elements; when the plug 902 is inserted, each locking element 2 moves or swings, and its locking portion 201 engages with the locking groove 904 of the plug 902, achieving a multi-point stable connection. Alternatively, the locking element 2 can be designed as a flexible ring; when the plug 902 is inserted, the entire flexible ring deforms, and the locking portion 201 engages with the locking groove 904, providing a uniform clamping force.

[0050] The advantages of this design are twofold: First, the multiple circumferentially arranged locking elements 2 or flexible ring-shaped locking elements 2 provide a more uniform and stable locking effect, enhancing the reliability of the connection. Second, the placement on the adjusting ring 5 facilitates coordinated operation with the adjusting ring 5, improving ease of use. For example, in situations where the patient's condition is unstable or the equipment may be accidentally touched, this connector design ensures a stable oxygen supply connection, preventing accidental disconnection.

[0051] In terms of technical effectiveness, the stability and reliability of the connector connection are significantly improved. When the plug 902 is inserted, the locking piece 2 moves or swings on the adjusting ring 5, and the locking part 201 engages with the locking slot 904 to achieve connection. The locking structure of the connector has been optimized, improving its safety and stability in medical use.

[0052] In some examples, the outer wall of the adjusting ring 5 is provided with a receiving groove 502, and the support part 203 of the clip 2 is oscillatingly disposed in the receiving groove 502. When the plug 902 is inserted, the support part 203 of the clip 2 oscillates in the receiving groove 502, so that the clip part 201 is engaged in the clip slot 904.

[0053] The advantages of this design are twofold: First, the receiving slot 502 provides space and guidance for the swing of the support 203, ensuring the accuracy and stability of the movement of the locking component 2. Second, it effectively conceals and protects the support 203 of the locking component 2, reducing external interference and damage. For example, during frequent plugging and unplugging of the plug 902, the cooperation between the receiving slot 502 and the support 203 can always maintain good locking and unlocking performance.

[0054] In terms of technical performance, the reliability and durability of the locking mechanism 2 have been further improved. When the plug 902 is inserted, it pushes the locking mechanism 2, causing the support 203 to swing within the receiving groove 502, thus engaging the locking part 201 with the groove 904. The installation and operating structure of the locking mechanism 2 have been optimized, enhancing the performance and lifespan of the connector.

[0055] In some examples, when plug 902 is inserted into the connector, locking part 201 and locking slot 904 engage with each other. Since both locking part 201 and locking slot 904 have trapezoidal cross-sections, this design has the following advantages: First, the trapezoidal structure provides guidance during insertion, allowing locking part 201 to smoothly engage with locking slot 904, reducing jamming and misoperation. Second, after engagement, the inclined side of the trapezoid provides a certain degree of self-locking, enhancing connection stability and preventing plug 902 from accidentally loosening. For example, during surgery, even if the equipment is subjected to slight vibration or pulling, the trapezoidal cross-section design of locking part 201 and locking slot 904 maintains a stable connection, ensuring uninterrupted oxygen supply.

[0056] In terms of technical effectiveness, the convenience and reliability of the connection between the plug 902 and the connector are significantly improved. When the plug 902 is inserted, the trapezoidal locking part 201 smoothly engages along the trapezoidal cross-section of the slot 904, achieving a secure connection. The optimized shape of the engaging structure enhances the connection performance and safety of the connector.

[0057] In some examples, a stop 6 is also included, which is disposed on the unlocking pusher 3 and located on the side of the latch 2 near the humidifier 9, through which the plug 902 passes. When the plug 902 of the connector is connected to the humidifier 9, the stop 6 is disposed on the unlocking pusher 3 and located on the side of the latch 2 near the humidifier 9. The plug 902 passes through the stop 6.

[0058] The advantages of this design are twofold: First, the stop 6 prevents foreign objects from entering the working areas of the locking component 2 and the unlocking pusher 3, thus avoiding interference with normal operation and connection stability. Second, it provides guidance and protection during the insertion and removal of the plug 902, reducing collisions and damage to the locking component 2 and the unlocking pusher 3. For example, during routine cleaning and tidying of the ward, the stop 6 can effectively protect the internal structure of the connector from dust, water stains, and other contaminants.

[0059] In terms of technical effectiveness, the connector's protective performance and operational stability have been enhanced. When plug 902 is inserted, it passes through stop 6, which protects the internal structure. Even when unlocking pusher 3 pushes latch 2 to unlock, stop 6 continues to provide protection and guidance. The optimized protective structure of the connector improves its reliability and durability during use.

[0060] In some examples, the annular connector 7 securely connects to the plug 1 via its inner wall's first annular edge 701, which engages with the plug 1's outer wall's second annular edge 102. The flow meter interface 702 on the annular connector 7 can be used to connect a flow meter to monitor oxygen flow. The unlocking pusher 3 is slidably mounted on the annular connector 7. One end of the elastic member 8 acts on the annular connector 7, and the other end acts on the unlocking pusher 3. In the initial state, the elastic member 8 provides elasticity, causing the unlocking pusher 3 to push the locking member 2, locking the locking part 201 in the locking slot 904, ensuring a stable connection between the plug 902 and the connector.

[0061] The advantages of this design are as follows: First, the structure of the ring connector 7 enhances the overall connection stability and functionality, facilitating installation and disassembly. Second, the elastic element 8 automatically maintains the locking state of the locking element 2, reducing loosening caused by human error. Third, the oxygen flow rate can be monitored in real time through the flow meter interface 702, allowing medical staff to monitor the treatment progress. For example, during hyperbaric oxygen therapy, even with changes in chamber pressure, the elastic element 8 ensures a stable connection of the plug 902, while the oxygen supply is accurately monitored through the flow meter interface 702.

[0062] In terms of technical effectiveness, the connector's connection reliability, automation level, and monitoring functions are significantly improved. The elastic element 8 provides elasticity to engage the locking part 201 into the locking slot 904. When unlocking is required, the unlocking pusher 3 is manually pushed to overcome the elasticity of the elastic element 8. The annular connector 7 provides the mounting base and functional expansion, and the flow meter interface 702 is used to connect the flow meter. These improvements to the connector's connection, unlocking mechanism, and functional expansion enhance its performance and convenience in medical applications.

[0063] like Figure 3 , Figure 4The diagram illustrates a humidification assembly according to another embodiment of this disclosure. The humidification assembly includes a front connector, a humidifying element 9, and humidifying balls 10. The humidifying element 9 has a humidification cavity 901, and a plug 902 at one end connects to the plug 1 of the connector. A connection port 903 inside the plug 902 communicates with the humidification cavity 901. Multiple humidifying balls 10 are placed within the humidification cavity 901. In practical use, for example, during oxygen humidification therapy for a patient, oxygen enters the humidification cavity 901 through the connector's connection channel 101 and the connection port 903 of the plug 902. Within the humidification cavity 901, the oxygen comes into full contact with the multiple humidifying balls 10, thereby achieving oxygen humidification.

[0064] The advantages of this design are twofold: First, the reliable connection of the connector ensures the stability of oxygen transmission and reduces the risk of leakage. Second, the multiple humidification bulbs 10 within the humidification chamber 901 provide sufficient humidification to meet the patient's treatment needs. For example, for patients requiring long-term oxygen therapy, this humidification component can continuously and stably provide humidified oxygen, improving treatment comfort and effectiveness. Compared to existing liquid water humidification technologies, it features lower noise, and the humidification component 9 can be replaced after single use, reducing the risk of hospital-acquired infections and preventing the growth of pathogens such as viruses and fungi in the device. It also avoids liquid splashing and choking incidents.

[0065] In terms of technical effectiveness, it effectively achieves efficient oxygen humidification, improving the quality of oxygen therapy for patients. Oxygen enters the humidification chamber 901 sequentially through the connector and plug 902, and comes into contact with the humidification bulb 10 for humidification. The component structure of the oxygen humidification system has been optimized, improving the humidification effect and the reliability of use.

[0066] In some examples, the humidification assembly also includes a sponge absorbent 11, which is located between the connection port 903 and the humidification chamber 901. In actual use, such as when a patient needs oxygen humidification during rehabilitation training, oxygen enters from the connection port 903 and first passes through the sponge absorbent 11.

[0067] The absorbent sponge 11 serves the following functions: First, it absorbs tiny water droplets in the oxygen, preventing excessive moisture from entering the patient's respiratory tract and causing discomfort. Second, it filters and purifies the oxygen to a certain extent, improving its quality.

[0068] The advantages of this design are twofold: First, it further optimizes the humidification effect, making the oxygen humidity more suitable. Second, it enhances the purification effect of oxygen, providing patients with higher quality oxygen. For example, for patients with sensitive respiratory tracts, the presence of the sponge absorbent component 11 can significantly improve the comfort and safety of oxygen inhalation.

[0069] In terms of technical effectiveness, the humidification quality and safety of the humidification component have been improved. Oxygen enters through the connection port 903, passes through the sponge absorbent component 11, and then enters the humidification chamber 901 to contact and humidify with the humidification ball 10. The internal structure of the humidification component has been improved, enhancing the quality and reliability of oxygen humidification.

[0070] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A connector, characterized in that, A plug (902) for connection with a humidifying component (9), the plug (902) having an internal connection port (903) and an external slot (904), comprising: Plug (1), the plug (1) having a connection channel (101) for connecting to the connection port (903); Card (2), the card (2) is movable or swinging relative to the plug (1), the card (2) has a card part (201) and a pushed part (202), after the card (2) moves or swings, the card part (201) is engaged or disengaged from the card slot (904). Unlock pusher (3), which is slidably set relative to the plug (1), and pushes the card (2) to swing or move after sliding.

2. The connector according to claim 1, characterized in that, Also includes: A connecting pad (4) is annular and is disposed at the end of the plug (1) and communicates with the connecting channel (101) for insertion by the plug (902).

3. The connector according to claim 2, characterized in that, Also includes: Adjusting ring (5), the adjusting ring (5) is threaded on the plug (1), the adjusting ring (5) has a tapered inner wall portion (501), the outer wall of the plug (902) also has a tapered outer wall portion (905), the tapered outer wall portion (905) is used to be inserted into the tapered inner wall portion (501).

4. The connector according to claim 3, characterized in that, The card (2) is movable or swinging on the adjusting ring (5), and the card (2) is arranged in several circles or is a flexible ring.

5. The connector according to claim 4, characterized in that, The outer wall of the adjusting ring (5) has a receiving groove (502), and the clip (2) also has a support part (203), which is oscillatingly disposed in the receiving groove (502).

6. The connector according to claim 4, characterized in that, Both the card part (201) and the card slot (904) have trapezoidal cross sections.

7. The connector according to claim 4, characterized in that, Also includes: A stop (6) is provided on the unlocking pusher (3) and located on the side of the card (2) near the humidifying member (9), and the plug (902) passes through the stop (6).

8. The connector according to claim 3, characterized in that, Also includes: The annular connector (7) has a first annular edge (701) on its inner wall and a second annular edge (102) on its outer wall. The first annular edge (701) is engaged between the second annular edge (102) and the plug-in (1). The annular connector (7) has a flow meter interface (702). The unlocking pusher (3) is slidably disposed on the annular connector (7). The elastic element (8) acts on the annular connector (7) at one end and on the unlocking pusher (3) at the other end, providing the unlocking pusher (3) to push the card (2) so that the card part (201) is locked in the card slot (904).

9. A humidification component, characterized in that, Including the connector as described in any one of claims 1 to 8, further comprising: Humidifying component (9), the humidifying component (9) has a humidifying cavity (901), one end of the humidifying component (9) has a plug (902), the plug (902) is connected to the plug (1), the plug (902) has a connection port (903) inside, and the connection port (903) is connected to the humidifying cavity (901); Humidifying balls (10), there are multiple humidifying balls (10) and they are placed in the humidification chamber (901).

10. The humidification component according to claim 9, characterized in that, Also includes: A sponge absorbent (11) is located between the connection port (903) and the humidification chamber (901) via a communication path.

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