A humidification mask with warming and anti-condensation

Abstract

The application discloses a humidification mask with warming and condensation prevention, and belongs to the technical field of medical devices, which comprises a humidification machine, a humidification tank arranged on the humidification machine, a preheating assembly arranged at a gas outlet end of the humidification tank and used for preheating humidification gas, a gas conveying corrugated pipe with one end communicated with the preheating assembly, a segmented warming and heat preserving sleeve sleeved on an outer wall of the gas conveying corrugated pipe, and a temperature compensation and condensation prevention assembly arranged at the other end of the gas conveying corrugated pipe and used for temperature compensation of the humidification gas and collection of condensed liquid.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a humidifying face mask with heating and anti-condensation functions. Background Technology

[0002] In clinical oxygen therapy, respiratory therapy, postoperative care, chronic respiratory disease care, and home oxygen therapy, humidified masks are commonly used to deliver humidified gas to the patient's mouth and nose. Because oxygen or therapeutic gas can easily remove moisture from the nasal cavity, oropharynx, and upper respiratory tract mucosa during continuous delivery, it is usually necessary to humidify the gas using a humidifier or humidifier canister to maintain a relatively suitable humidity level for the gas inhaled by the patient. If the humidity of the inhaled gas is insufficient, the patient is prone to dry mouth and nose, throat discomfort, thick sputum, difficulty in expectorating sputum, and irritating cough, which can affect treatment comfort and willingness to continue wearing the mask. For patients who require prolonged oxygen therapy or respiratory support, the temperature and humidity stability of the humidified gas directly affects the nursing experience and the degree of treatment compliance.

[0003] Existing humidified mask assemblies typically include a humidifier, a humidification tank, a gas delivery line, and the mask body. The humidifier acts on the water or humidifying medium in the humidification tank to give the gas a certain level of humidity before it enters the patient's end. The humidified gas then enters the mask body through the gas delivery line and is ultimately inhaled by the patient. To improve the temperature drop of the humidified gas during delivery, some existing devices have a heating structure at the humidification tank or an insulation layer on the outside of the gas delivery line. Some devices also have a simple water collection structure at the lower part of the pipeline to temporarily store the condensate generated during delivery. These methods can improve the gas humidification and pipeline condensation problems to some extent, but their structures are mostly concentrated in a single location, and it is usually difficult to ensure a continuous delivery path of humidified gas from the humidification tank outlet, the gas delivery line, to the mask inlet.

[0004] In actual use, the humidified gas still needs to pass through a certain length of bellows after being output from the humidification tank. The outer wall of the bellows continuously exchanges heat with the external environment. Especially when the ambient temperature is low, the pipeline is long, or the gas flow rate changes, the temperature of the humidified gas is prone to gradually decreasing. Since the humidified gas itself has a high moisture content, when it comes into contact with the cooler pipe wall or the inner wall of the mask, water vapor is easy to condense on the wall surface to form condensate. After the condensate accumulates on the inner wall of the bellows, the bends in the pipeline, and the inlet of the mask, it may flow towards the mask with changes in the patient's body position, pipeline shaking, or airflow impact, and then drip onto the patient's face or near the mouth and nose, causing discomfort when wearing the mask and possibly irritating the respiratory tract.

[0005] Existing methods that rely solely on heating the humidification tank can only adjust the source temperature of the humidified gas. The humidified gas still loses heat along the way after entering the gas delivery bellows, making it difficult to ensure that it maintains a suitable temperature before reaching the mask inlet. Existing methods that simply install insulation material on the outside of the pipeline mainly delay heat loss and cannot actively replenish the temperature of the humidified gas during the delivery process. Existing pipeline water collection structures usually rely on low-level water collection cups to collect the flowing condensate, but ordinary water collection structures are not good at stably intercepting and collecting condensate generated at the mask inlet due to gas temperature changes, or small droplets carried by the airflow. Simply increasing the workload of the humidifier or heating structure may lead to excessively high front-end temperatures while the end-end temperatures remain unstable, making it difficult to coordinate and cooperate between replenishing temperature and preventing condensation. Summary of the Invention

[0006] This invention overcomes the shortcomings of the prior art and provides a humidifying face mask with heating and anti-condensation features.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is: a humidifying face mask with heating and anti-condensation functions, comprising:

[0008] Humidifier;

[0009] A humidification tank is installed on the humidifier;

[0010] A preheating component is disposed at the gas outlet of the humidification tank and is used to preheat the humidification gas;

[0011] A gas-transmitting corrugated pipe, one end of which is connected to the preheating component;

[0012] A segmented heating and insulation jacket is fitted over the outer wall of the gas transmission bellows;

[0013] A temperature-compensating and anti-condensation component is installed at the other end of the gas bellows to compensate for the temperature of the humidified gas and collect the condensate.

[0014] A humidifying mask is installed at the air outlet of the heat-compensating and anti-condensation component;

[0015] The preheating component is used to preheat the humidified gas output from the humidification tank; the segmented heating and insulation jacket is used to segmentally heat and insulate the humidified gas in the gas bellows; and the heat replenishment and anti-condensation component is used to replenish the temperature of the humidified gas before it enters the humidification mask and to collect the condensate.

[0016] In a preferred embodiment of the present invention, the preheating component includes a preheating connector, one end of which is connected to the air outlet of the humidification tank, and the other end is connected to the air supply bellows.

[0017] In a preferred embodiment of the present invention, the preheating component further includes a temperature detection element and a first heating element, wherein the temperature detection element is disposed on the outer wall of the preheating joint and the first heating element is disposed inside the preheating joint.

[0018] In a preferred embodiment of the present invention, the inner wall of the preheating joint is provided with a gas guide tube, and the circumferential side wall of the gas guide tube is provided with a gas guide groove for humidifying gas to pass through.

[0019] In a preferred embodiment of the present invention, the segmented heating and insulation sleeve includes a plurality of sleeve segments arranged sequentially along the length of the gas transmission corrugated pipe, and the plurality of sleeve segments can be detachably sleeved on the outer wall of the gas transmission corrugated pipe.

[0020] In a preferred embodiment of the present invention, the temperature compensation and anti-condensation component includes a liquid collection connection seat and an air inlet heating cylinder. The air inlet heating cylinder is disposed on the side of the liquid collection connection seat near the air supply bellows. One end of the air inlet heating cylinder is connected to the air supply bellows, and the other end is connected to the liquid collection connection seat.

[0021] In a preferred embodiment of the present invention, the temperature compensation and anti-condensation component further includes a second heating element, which is disposed inside the air intake heating cylinder and arranged along the axial direction of the air intake heating cylinder.

[0022] In a preferred embodiment of the present invention, a trapezoidal groove is formed in the liquid collection connector, with the small end of the trapezoidal groove facing the air inlet heating cylinder and the large end of the trapezoidal groove facing the humidification mask; the temperature compensation and anti-condensation component further includes a flow guiding component, a liquid guiding pipe and a liquid collection tank, the flow guiding component is disposed in the trapezoidal groove, one end of the liquid guiding pipe is connected to the outer wall of the trapezoidal groove and the other end is connected to the liquid collection tank.

[0023] In a preferred embodiment of the present invention, the flow guiding assembly includes a flow guiding support, a telescopic guide rod, a return spring, and a conical stop. The flow guiding support is disposed on the side of the trapezoidal groove near the humidifying mask. The telescopic guide rod passes through the flow guiding support. The return spring is sleeved on the outer wall of the telescopic guide rod. The conical stop is disposed at the end of the telescopic guide rod near the air intake heating cylinder.

[0024] In a preferred embodiment of the present invention, the flow guiding assembly further includes an inner flow guiding ring and an outer flow guiding ring. The inner flow guiding ring is sleeved on the outer wall of the telescopic guide rod, and the outer flow guiding ring is disposed on the inner wall of the trapezoidal groove. The outer flow guiding ring is located between the conical stop and the inner flow guiding ring, and the inner flow guiding ring is located between the outer flow guiding ring and the flow guiding support.

[0025] This invention addresses the shortcomings of the prior art and has the following beneficial effects:

[0026] (1) By setting a heat-compensating and anti-condensation component between the gas bellows and the humidifying mask, a trapezoidal groove is formed in the liquid collection connector. The conical baffle in the flow guide component works with the telescopic guide rod and the return spring so that when the humidifying gas enters the trapezoidal groove, it can first push the conical baffle to move, and then be diverted by the conical baffle, and pass through the outer flow guide ring, the inner flow guide ring and the flow guide support in sequence. Since the airflow path forms a deflection and dispersion before the mask inlet, the droplets entrained in the gas and the condensate moving along the inner wall are more easily intercepted near the trapezoidal groove and the flow guide ring, and flow into the liquid guide pipe along the lower side of the liquid collection connector, and finally enter the liquid collection tank. Compared with the structure that only relies on the low-level water collection of the pipeline, this scheme concentrates the end heat compensation, airflow guidance and condensate collection before the mask inlet, reducing the situation where condensate enters the humidifying mask with the airflow and approaches the patient's mouth and nose area.

[0027] (2) By setting the preheating component between the humidification tank and the gas bellows, and arranging the first heating element and the gas guide groove in the preheating joint, the humidified gas does not directly enter the gas bellows after being output from the humidification tank, but first disperses into the preheating joint through the gas guide groove on the circumferential side wall of the gas guide groove. Since the gas guide groove can change the concentrated passage state of the humidified gas, the gas forms a more sufficient contact and flow along the periphery of the first heating element, and the preheating process is no longer concentrated in a single channel position. Compared with the structure where the humidified gas directly enters the pipeline through a normal joint, it can complete a more uniform front-end heat replenishment before the gas enters the long-distance pipeline, reduce the situation where the gas temperature drops at the beginning of the gas bellows, and reduce the possibility of condensation due to insufficient initial temperature during subsequent transportation.

[0028] (3) By installing a segmented heating and insulation sleeve on the outer wall of the gas transmission bellows and placing the segmented heating and insulation sleeve between the preheating component and the heat replenishment and anti-condensation component, a heating and insulation path is formed continuously along the flow direction of the humidified gas. Since the gas transmission bellows usually has bending, suspension and external environment heat exchange during use, the humidified gas is prone to cooling along the path when it is transported in the pipe. Simply relying on heating at the end of the humidification tank or ordinary insulation covering is difficult to correspond to the heat dissipation state at different positions of the pipeline. The segmented heating and insulation sleeve can directly act on the outer wall of the gas transmission bellows, so that the gas can continuously obtain heat compensation during the transportation process. Compared with the structure that only heats at the humidification source, the heating position corresponds to the actual cooling path of the humidified gas, reducing the situation of high humidity gas condensing and accumulating on the inner wall of the bellows. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a perspective structural diagram of a preferred embodiment of the present invention;

[0031] Figure 2 This is a three-dimensional structural diagram of the gas bellows according to a preferred embodiment of the present invention;

[0032] Figure 3 This is a cross-sectional view of the preheating component according to a preferred embodiment of the present invention;

[0033] Figure 4 This is a cross-sectional view of the heat compensation and anti-condensation component according to a preferred embodiment of the present invention;

[0034] Figure 5 This is a cross-sectional view of the flow guiding component according to a preferred embodiment of the present invention.

[0035] In the diagram: 1. Humidifier; 2. Humidification tank; 3. Preheating assembly; 31. Preheating connector; 32. Temperature detection element; 33. First heating element; 34. Air guide channel pipe; 4. Air supply corrugated pipe; 5. Segmented heating and insulation jacket; 6. Temperature compensation and anti-condensation assembly; 61. Liquid collection connection seat; 62. Air inlet heating cylinder; 63. Second heating element; 64. Flow guide assembly; 641. Flow guide support; 642. Telescopic guide rod; 643. Return spring; 644. Inner flow guide ring; 645. Outer flow guide ring; 646. Conical stop; 65. Liquid guide pipe; 66. Liquid collection tank; 7. Humidification mask. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein. Therefore, the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0038] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 communication between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0040] like Figures 1-5 As shown, a humidifying face mask with heating and anti-condensation features includes:

[0041] Humidifier 1;

[0042] Humidification tank 2 is installed on the humidifier 1;

[0043] The preheating component 3 is located at the gas outlet of the humidification tank 2 and is used to preheat the humidification gas.

[0044] One end of the gas supply bellows 4 is connected to the preheating component 3;

[0045] Segmented heating and insulation sleeve 5 is fitted onto the outer wall of the gas transmission bellows 4;

[0046] The temperature-compensating and anti-condensation component 6 is located at the other end of the gas bellows 4 and is used to compensate for the temperature of the humidified gas and collect the condensate.

[0047] A humidifying mask 7 is disposed at the air outlet of the heat-compensating and anti-condensation component 6;

[0048] The preheating component 3 is used to preheat the humidified gas output from the humidification tank 2, the segmented heating and insulation jacket 5 is used to segmentally heat and insulate the humidified gas in the gas bellows 4, and the heat replenishment and anti-condensation component 6 is used to replenish the temperature of the humidified gas before it enters the humidification mask 7 and to collect the condensate.

[0049] The core inventive concept of this invention lies not in simply increasing the heating intensity of the humidifier 1 or the humidifier tank 2, but in constructing a continuous temperature management and condensate interception system along the actual flow path of the humidified gas from the humidifier tank 2 to the humidified mask 7. This system includes front-end preheating, mid-section segmented heating and insulation, and end-stage heat replenishment and anti-condensation. The preheating component 3 ensures that the humidified gas receives relatively uniform front-end heat replenishment before entering the gas delivery bellows 4. The segmented heating and insulation sleeve 5 provides continuous heat compensation at the corresponding heat dissipation points along the gas delivery bellows 4. The heat replenishment and anti-condensation component 6 reheats the humidified gas before the mask inlet and guides and collects droplets and condensate. This prevents the high-humidity gas from condensing due to sudden drops in local temperature throughout the delivery path. Simultaneously, it intercepts condensate before the mask inlet when it has already formed or been carried by the airflow, thereby reducing the likelihood of condensate entering the humidified mask 7 and approaching the patient's mouth and nose area.

[0050] Example 1:

[0051] It should be noted that this embodiment is the basic implementation of the present invention. Its key point is to set a preheating component 3 between the humidification tank 2 and the gas transmission bellows 4, so that the humidified gas is dispersed and preheated before entering the longer transmission pipeline, thereby reducing the possibility of temperature drop and water vapor condensation of the humidified gas at the beginning section of the gas transmission bellows 4.

[0052] Specifically, the humidifier 1 can be an existing humidification device capable of generating or conveying humidified gas. The humidification tank 2 is installed on the humidifier 1 and is adapted to the gas output path of the humidifier 1. The humidification tank 2 is used to contain humidification water or humidification medium, so that oxygen, air or therapeutic gas carries a certain amount of moisture after passing through the humidification tank 2. The outlet of the humidification tank 2 serves as the source position of the humidified gas before it enters the pipeline. The preheating component 3 is installed between the outlet and the gas delivery bellows 4, so that the humidified gas does not directly enter the gas delivery bellows 4, but first passes through the preheating component 3 to complete the initial temperature adjustment.

[0053] Furthermore, the preheating component 3 includes a preheating connector 31, one end of which is connected to the gas outlet of the humidification tank 2, and the other end is connected to the gas bellows 4. The preheating connector 31 can be a hollow tubular, cylindrical, or transition connector with connection ports at both ends, and its interior forms a preheating channel for the humidification gas to pass through. The end of the preheating connector 31 near the humidification tank 2 can be connected to the gas outlet of the humidification tank 2 by plugging, screwing, snapping, or sealing. The end of the preheating connector 31 near the gas bellows 4 can be connected to the end of the gas bellows 4 to ensure that the humidification gas is not easily leaked at the connection.

[0054] Furthermore, the preheating assembly 3 also includes a temperature detection element 32 and a first heating element 33; the temperature detection element 32 is disposed on the outer wall of the preheating joint 31 and is used to detect the temperature status at the preheating joint 31; the first heating element 33 is disposed inside the preheating joint 31 and is used to provide heat to the humidified gas flowing through the preheating joint 31.

[0055] For example, the temperature sensing element 32 can be a thermistor, temperature sensor, temperature probe or other sensing element capable of sensing temperature changes; the first heating element 33 can be an electric heating wire, heating element, PTC heating element, ring heating element or other low-pressure heating element suitable for use in medical tubing.

[0056] Furthermore, the temperature detection element 32 can be electrically connected to the control module of the humidifier 1 or to a separately configured temperature control module, thereby adjusting the working state of the first heating element 33 according to the detected temperature state.

[0057] Specifically, the inner wall of the preheating joint 31 is provided with a gas guide tube 34, and the circumferential sidewall of the gas guide tube 34 is provided with a gas guide groove for the humidifying gas to pass through; the gas guide tube 34 is coaxially arranged with the preheating joint 31; the gas guide groove can be a strip groove, an arc groove, a spaced hole groove, or other open structure that can change the humidifying gas from a concentrated airflow to a dispersed airflow; since the gas guide groove is distributed on the circumferential sidewall of the gas guide tube 34, the humidifying gas can be dispersed into the circumferential space of the preheating joint 31 when it passes through the gas guide tube 34, thereby increasing the contact degree between the humidifying gas and the inner wall of the preheating joint 31 and the airflow area around the first heating element 33.

[0058] Optionally, the first heating element 33 can be located on the outside, inside or adjacent to the gas guide tube 34, as long as it can heat the humidified gas dispersed by the gas guide tube. In order to reduce local overheating of the gas, the first heating element 33 can be arranged to extend along the axial direction of the preheating joint 31, or it can be arranged in a circumferential or distributed manner so that the heat is gradually transferred along the flow direction of the humidified gas. An insulating heat-conducting layer or an isolation support structure can be provided between the first heating element 33 and the preheating joint 31 to ensure that the heating element is stably fixed and to prevent the heating element from directly contacting the liquid water.

[0059] It is understandable that in this embodiment, the preheating component 3 is set up at the gas flow starting point of the humidification tank 2 outlet, and the humidification gas is dispersed in the preheating joint 31 through the gas guide tube 34, instead of relying solely on ordinary joints to complete the gas transition; the gas guide tube 34, the first heating element 33 and the temperature detection element 32 work together to enable the preheating process to simultaneously have the capabilities of airflow dispersion, heat compensation and temperature feedback, thereby reducing the problems of uneven temperature and insufficient initial temperature before the humidification gas enters the gas delivery bellows 4; after this structure is combined with the existing humidification basic platform of humidifier 1 and humidification tank 2, the risk of subsequent pipeline condensation can be reduced in advance without significantly increasing the burden on the patient.

[0060] Example 2:

[0061] It should be noted that this embodiment is an implementation method that further improves the heat dissipation problem along the gas transmission bellows 4 based on embodiment one. The key point of this embodiment is to set a segmented heating and insulation sleeve 5 on the outer wall of the gas transmission bellows 4 so that the humidified gas can continuously obtain heat compensation during the process of passing through the gas transmission bellows 4, rather than relying solely on single-point heating at the end of the humidification tank 2 or the end of the preheating component 3.

[0062] Specifically, one end of the gas supply corrugated pipe 4 is connected to the preheating component 3, and the other end is connected to the heat replenishment and anti-condensation component 6. The gas supply corrugated pipe 4 can be a flexible corrugated pipe, a medical gas supply hose, or a delivery pipeline with a certain degree of bending adaptability. Since the gas supply corrugated pipe 4 is usually bent, suspended, or partially attached to the patient's body position, bed position, or equipment placement during clinical or home use, the heat exchange state between different positions of the gas supply corrugated pipe 4 and the external environment is not completely consistent. Therefore, heating only a single position is difficult to cover the actual cooling path of the entire pipeline.

[0063] Furthermore, the segmented heating and insulation jacket 5 includes multiple sleeve segments arranged sequentially along the length of the gas transmission bellows 4. Each sleeve segment can be detachably fitted onto the outer wall of the gas transmission bellows 4. Each sleeve segment can be arranged around the outer periphery of the gas transmission bellows 4, or it can be fitted onto the outer wall of the gas transmission bellows 4 in an openable, rolled, or encasing structure. Adjacent sleeve segments can be independent of each other, or they can be arranged continuously through flexible connections, electrical connections, or overlapping parts. Since multiple sleeve segments are arranged sequentially along the length of the gas transmission bellows 4, the number and position of the sleeves can be selected according to the actual length of the pipeline, the bending position, and the location where heat dissipation is easy.

[0064] Specifically, each sleeve segment may include a heat-conducting contact layer close to the outer wall of the gas bellows 4, a heating layer for providing heat, an insulation layer for reducing heat loss to the outside, and a protective layer on the outside. The heat-conducting contact layer may be made of a flexible heat-conducting material so as to keep it in close contact with the outer wall without compressing the gas bellows 4. The heating layer may be provided with an electric heating wire, a flexible heating element, or a low-pressure heating film. The insulation layer may be made of medical-grade, cleanable insulation material. The protective layer may be made of an outer covering material that is easy to wipe and disinfect and has a certain degree of flexibility. The above-mentioned layered structure is not a limitation on the form of the sleeve segment, as long as it can achieve the heating and insulation of the gas bellows 4.

[0065] Optionally, the detachable connection of the sleeve section can be achieved through hook and loop fasteners, snaps, elastic collars, straps, magnetic attachments, or other connection structures that facilitate disassembly and assembly by medical personnel; the fit between the sleeve section and the gas bellows 4 should ensure that the gas chamber of the pipeline is not significantly compressed, so that the humidified gas can still pass through smoothly; for locations where the gas bellows 4 bends frequently or is close to an external cold source, more sleeve sections can be installed; for locations with low heat dissipation or where observation space needs to be preserved, the number of sleeve sections can be reduced or an uncovered area can be left, thereby improving the adaptability of use.

[0066] Furthermore, multiple sleeve sections can adopt a unified power supply and unified control method, or they can adopt a segmented control method. When using unified control, multiple sleeve sections can provide basic insulation and heating simultaneously. When using segmented control, different sleeve sections can provide differentiated outputs according to the cooling situation at different locations in the pipeline.

[0067] For example, the sleeve section near the preheating component 3 can maintain a lower compensation output, while the sleeve section in the middle or near the patient end can appropriately increase the compensation output according to the ambient temperature, thereby making the temperature change more gradual when the humidified gas flows along the gas bellows 4.

[0068] It is understood that this embodiment does not simply place a whole section of ordinary insulation material on the outside of the gas bellows 4, but rather splits the heating and insulation functions into multiple sleeve sections arranged along the pipeline. The multiple sleeve sections are matched with the flexible use state of the gas bellows 4, which can not only adapt to pipeline bends and disassembly and cleaning, but also provide heat compensation according to the actual heat dissipation path. The preheating component 3 provides the initial temperature at the front end, and the segmented heating and insulation sleeve 5 provides temperature maintenance along the pipeline. The two work together to ensure that the humidified gas maintains a more stable temperature and humidity state before entering the end heating and anti-condensation position, avoiding the problem of the front end temperature being too high and the end temperature still unstable due to simply increasing the output of the humidification tank 2 or the first heating element 33.

[0069] Example 3:

[0070] It should be noted that this embodiment is an improved implementation method based on Embodiments 1 and 2, which improves the end-temperature replenishment and condensate collection before the inlet of the humidifying mask 7. The focus of this embodiment is to reheat the humidifying gas before it enters the humidifying mask 7 by means of the temperature replenishment and anti-condensation component 6, and to provide an interception, collection and discharge path for the droplets entrained in the gas and the condensate moving along the wall within the same end structure.

[0071] Specifically, the temperature-compensating and anti-condensation component 6 includes a liquid collection connector 61 and an air intake heating cylinder 62. The air intake heating cylinder 62 is located on the side of the liquid collection connector 61 near the air supply bellows 4. One end of the air intake heating cylinder 62 is connected to the air supply bellows 4, and the other end is connected to the liquid collection connector 61. The side of the liquid collection connector 61 near the humidification mask 7 is connected to the humidification mask 7, so that the air intake heating cylinder 62, the liquid collection connector 61, and the humidification mask 7 sequentially form a gas flow channel in front of the patient.

[0072] Furthermore, the temperature compensation and anti-condensation component 6 also includes a second heating element 63, which is disposed inside the air intake heating cylinder 62 and arranged along the axial direction of the air intake heating cylinder 62. The second heating element 63 can be an axial heating rod, an axial heating plate, a heating coil, a PTC heating element, or other heating structures suitable for being disposed inside the air intake heating cylinder 62. The second heating element 63 can be fixed inside the air intake heating cylinder 62 by means of a support rib, an insulating bracket, or a thermally conductive support, so that an annular or dispersed flow space for humidified gas to pass through is formed between the second heating element 63 and the inner wall of the air intake heating cylinder 62.

[0073] Optionally, a protective cover, isolation net, or insulating heat-conducting layer may be provided on the outside of the second heating element 63 to allow the humidified gas to exchange heat with the heated area around the second heating element 63, while reducing the possibility of condensate directly contacting the heating part; the second heating element 63 may use the same control system as the first heating element 33, or it may use an independent control system; in order to ensure safe use, a sealing structure and an insulating structure may be provided at the power supply connection of the second heating element 63, and a sealing ring, a snap-fit ​​sealing surface, or an insert sealing section may also be provided at the connection end of the air inlet heating cylinder 62 to reduce gas leakage and liquid overflow.

[0074] Furthermore, a trapezoidal groove is formed inside the liquid collection connector 61. The small end of the trapezoidal groove faces the air inlet heating cylinder 62, and the large end faces the humidification mask 7. The trapezoidal groove can be understood as a cavity structure that gradually expands along the direction of humidification gas flow. Its small end is used to receive humidification gas from the air inlet heating cylinder 62, and its large end is used to output humidification gas to the humidification mask 7. Since the trapezoidal groove has an expanding trend from the small end to the large end, the flow rate and flow direction of the humidification gas will change after entering the trapezoidal groove, which is conducive to the separation of liquid droplets in the gas from the airflow, and also conducive to the condensate collecting downward along the inner wall of the liquid collection connector 61.

[0075] Furthermore, the temperature compensation and anti-condensation component 6 also includes a flow guiding component 64, a liquid guiding pipe 65, and a liquid collecting tank 66; the flow guiding component 64 is disposed in the trapezoidal groove and is used to divert and deflect the humidified gas entering the trapezoidal groove; one end of the liquid guiding pipe 65 is connected to the outer wall of the trapezoidal groove, and the other end is connected to the liquid collecting tank 66; the liquid guiding pipe 65 is preferably disposed on the lower side of the liquid collecting connection seat 61 in the normal use state or in a position where liquid can easily collect, so that the condensate collected on the inner wall of the trapezoidal groove, the surface of the flow guiding component 64, or the lower part of the liquid collecting connection seat 61 can flow into the liquid guiding pipe 65 under the action of gravity, and finally enter the liquid collecting tank 66.

[0076] Optionally, the collection tank 66 can be detachably connected to the liquid guide tube 65 so that medical staff or users can regularly remove and empty the condensate for cleaning. The inlet of the collection tank 66 can be equipped with an anti-backflow structure, a sealing cap, a liquid level observation section, or a detachable sealing component to reduce the backflow of liquid in the collection tank 66 to the collection connection seat 61 due to pipe shaking. The liquid guide tube 65 and the collection connection seat 61 can be connected by integral molding, plug-in, screw-in, or sealing bonding, as long as a stable drainage channel can be formed.

[0077] It is understood that in this embodiment, the end-temperature replenishment and condensate collection are centrally located before the inlet of the humidified mask 7, rather than simply setting a water collection structure at the low position of the pipeline; the air inlet heating cylinder 62 and the second heating element 63 are used to reduce the possibility of continued condensation at the mask inlet, and the trapezoidal groove of the liquid collection connection seat 61, the flow guiding component 64, the liquid guiding pipe 65 and the liquid collection tank 66 are used to treat the condensate that has been formed or carried by the airflow; the above structures work together to make the humidified gas undergo the processes of temperature replenishment, diffusion, deflection, droplet interception and liquid collection before entering the humidified mask 7, thereby more effectively reducing the amount of condensate entering the vicinity of the patient's mouth and nose.

[0078] Example 4:

[0079] It should be noted that this embodiment is an implementation method that further defines the specific structure and dynamic cooperation method of the flow guiding component 64 based on embodiment 3. The focus of this embodiment is to form a flow guiding and liquid blocking structure that can change with the airflow state through the flow guiding support 641, telescopic guide rod 642, return spring 643, inner flow guiding ring 644, outer flow guiding ring 645 and conical baffle 646, so that the humidified gas after heating forms a diversion and deflection path in the trapezoidal groove.

[0080] Specifically, the flow guiding assembly 64 includes a flow guiding support 641, a telescopic guide rod 642, a return spring 643, and a conical stop 646. The flow guiding support 641 is located on the side of the trapezoidal groove near the humidifying mask 7. It can be fixedly connected to the inner wall of the liquid collection connection seat 61, or it can be set in the large end area of ​​the trapezoidal groove by snap-fit, embedding, or integral molding. The flow guiding support 641 is used to support the telescopic guide rod 642 and reserve ventilation space for the humidifying gas flowing to the humidifying mask 7. Ventilation holes, ventilation grooves, or annular ventilation gaps can be provided on the flow guiding support 641 so that the gas can still smoothly enter the humidifying mask 7 after passing through the flow guiding assembly 64.

[0081] Furthermore, the telescopic guide rod 642 passes through the guide support 641 and can reciprocate relative to the guide support 641 along the direction from the air intake heating cylinder 62 to the humidification mask 7; the return spring 643 is sleeved on the outer wall of the telescopic guide rod 642, one end of the return spring 643 can abut against the guide support 641 or be fixed relative to the guide support 641, and the other end can abut against the limiting part, the inner guide ring 644, the conical stop 646 on the telescopic guide rod 642 or an abutment structure linked with the telescopic guide rod 642; the conical stop 646 is provided at the end of the telescopic guide rod 642 near the air intake heating cylinder 62, so that the humidification gas from the air intake heating cylinder 62 acts on the conical stop 646 first.

[0082] Furthermore, the flow guiding assembly 64 also includes an inner flow guiding ring 644 and an outer flow guiding ring 645; the inner flow guiding ring 644 is sleeved on the outer wall of the telescopic guide rod 642, and the outer flow guiding ring 645 is disposed on the inner wall of the trapezoidal groove; the outer flow guiding ring 645 is located between the conical stop 646 and the inner flow guiding ring 644, and the inner flow guiding ring 644 is located between the outer flow guiding ring 645 and the flow guiding support 641; the inner flow guiding ring 644 and the outer flow guiding ring 645 can both be annular protrusions, annular flanges, annular guide plates, or annular parts with ventilation gaps; the outer flow guiding ring 645 can be fixedly connected to the inner wall of the trapezoidal groove, and the inner flow guiding ring 644 can be fixedly connected to or sleeved to the telescopic guide rod 642, as long as it can form a deflection channel together with the telescopic guide rod 642 and the outer flow guiding ring 645.

[0083] Optionally, the conical surface of the conical baffle 646 is positioned facing the air inlet heating cylinder 62, allowing the humidified gas to diffuse circumferentially along the conical surface when entering the trapezoidal groove. A variable ventilation gap is maintained between the conical baffle 646 and the small end of the trapezoidal groove. When the flow rate or pressure of the humidified gas increases, the conical baffle 646, driven by the airflow, moves the telescopic guide rod 642 towards the side closer to the humidification mask 7, compressing the return spring 643 and correspondingly increasing the ventilation gap. When the flow rate or pressure of the humidified gas decreases, the return spring 643 pushes the telescopic guide rod 642 and the conical baffle 646 to reset, reducing the ventilation gap and restoring it to the initial guiding state.

[0084] It should be noted that the humidified gas after being heated enters the small end of the trapezoidal groove through the air inlet heating cylinder 62, and first impacts or acts on the conical baffle 646; under the action of the airflow, the conical baffle 646 drives the telescopic guide rod 642 to move, and the return spring 643 is compressed, thereby forming a ventilation space between the conical baffle 646 and the small end of the trapezoidal groove that is adapted to the current airflow state; after the humidified gas disperses outward along the conical surface of the conical baffle 646, it first flows past the vicinity of the outer guide ring 645, then changes its flow direction and passes past the vicinity of the inner guide ring 644, and finally enters the humidification mask 7 through the ventilation area on the guide support 641.

[0085] Furthermore, since the outer guide ring 645 is located on the inner wall of the trapezoidal groove and between the conical baffle 646 and the inner guide ring 644, and the inner guide ring 644 is located between the outer guide ring 645 and the guide support 641, the humidifying gas cannot directly rush into the humidifying mask 7 in a straight line. Instead, it forms a deflection path in the trapezoidal groove from the middle to the outer periphery and then from the outer periphery to the middle or downstream ventilation area. The fine droplets in the gas are more likely to collide with the conical baffle 646, the outer guide ring 645, the inner guide ring 644, or the inner wall of the trapezoidal groove under the action of inertia. The condensate moving forward along the wall can be slowed down and collected under the obstruction and guidance of the annular structure, and discharged into the liquid guide pipe 65 along the lower side of the liquid collection connection seat 61.

[0086] Furthermore, the return spring 643 and the telescopic guide rod 642 enable the conical baffle 646 to have an adaptive adjustment function. When the airflow is large, the conical baffle 646 moves backward to increase the ventilation space and reduce the patient's inspiratory resistance and airflow noise. When the airflow is small, the conical baffle 646 returns to its original position under the action of the return spring 643, so that the gas entering the trapezoidal groove still needs to form a dispersion path along the conical surface and the guide ring, avoiding the gas from adhering to the wall and carrying liquid directly into the humidified mask 7 when the flow rate is low. Thus, the conical baffle 646 is not simply a fixed baffle, but together with the telescopic guide rod 642, the return spring 643, the inner guide ring 644, and the outer guide ring 645, it forms a dynamic structure that takes into account flow guidance, variable cross-section ventilation, and liquid interception.

[0087] It is understood that the inventive combination of this embodiment is that the trapezoidal groove provides an extended buffer space, the conical baffle 646 provides an initial flow diversion and a variable ventilation cross section, the outer guide ring 645 and the inner guide ring 644 provide multi-stage deflection and droplet impact positions, the guide support 641 provides end support and a ventilation outlet, and the liquid guide pipe 65 and the liquid collection tank 66 provide a liquid discharge path.

[0088] When using this invention, first install the humidification tank 2 on the humidifier 1, and connect the preheating component 3, the gas supply bellows 4, the heat replenishment and anti-condensation component 6 and the humidification mask 7 in sequence.

[0089] After the humidifier 1 starts working, the gas is humidified in the humidifier tank 2 to form humidified gas. The humidified gas enters the preheating joint 31 from the outlet of the humidifier tank 2. Under the guidance of the gas guide tube 34, the gas changes from a concentrated flow state to a circumferentially dispersed flow state, and the front end is preheated under the action of the first heating element 33.

[0090] Temperature detection element 32 detects the temperature at preheating joint 31 to ensure that the humidified gas before entering the gas bellows 4 maintains a relatively stable initial temperature.

[0091] Subsequently, the humidified gas is transported along the gas bellows 4 toward the humidification mask 7. The segmented heating and insulation sleeve 5, which is fitted on the outer wall of the gas bellows 4, continuously heats and insulates the humidified gas inside the pipe along the gas flow path, reducing the cooling along the way of the humidified gas during long-distance transport, pipe bending and external environment heat exchange.

[0092] When the humidified gas reaches the end of the gas delivery bellows 4, it first enters the intake heating cylinder 62 in the heat replenishment and anti-condensation component 6. The second heating element 63 provides end-heating for the humidified gas before it approaches the humidified mask 7, so that the gas is less likely to continue to condense due to temperature drop before entering the patient's end.

[0093] After the humidified gas is heated, it enters the trapezoidal groove in the liquid collection connector 61. The airflow pushes the conical baffle 646 and causes the telescopic guide rod 642 to move. The return spring 643 then undergoes elastic deformation, so that a ventilation space is formed between the conical baffle 646 and the trapezoidal groove that is adapted to the current airflow state. The humidified gas is dispersed along the conical baffle 646 and passes through the outer guide ring 645, the inner guide ring 644 and the guide support 641 in sequence to form a deflection path.

[0094] During this process, the liquid droplets entrained in the gas and the condensate moving along the pipe wall are intercepted and guided by the conical baffle 646, the outer guide ring 645, the inner guide ring 644 and the inner wall of the trapezoidal groove, and then collect to the lower side of the liquid collection connection seat 61 and flow into the liquid collection tank 66 through the liquid guide pipe 65 for temporary storage.

[0095] After being warmed, diverted, deflected, and condensate-retaining, the humidified gas continues to enter the humidified mask 7 and is ultimately inhaled by the patient. This allows for continuous coordination of preheating at the front end, heating and insulation in the middle section, warming at the end, and condensate collection during the delivery of the humidified gas from the humidification tank 2 to the humidified mask 7.

[0096] Based on the preferred embodiments of the present invention described above, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A humidifying face mask with heating and anti-condensation functions, characterized in that, include: Humidifier (1); A humidification tank (2) is installed on the humidifier (1); The preheating component (3) is located at the outlet of the humidification tank (2) and is used to preheat the humidification gas. One end of the gas bellows (4) is connected to the preheating component (3); A segmented heating and insulation sleeve (5) is fitted onto the outer wall of the gas transmission bellows (4); The heat replenishment and anti-condensation component (6) is located at the other end of the gas bellows (4) and is used to replenish the temperature of the humidified gas and collect the condensate. A humidifying mask (7) is installed at the outlet of the heat-compensating and anti-condensation component (6); The preheating component (3) is used to preheat the humidified gas output from the humidification tank (2), the segmented heating and insulation jacket (5) is used to segmentally heat and insulate the humidified gas in the gas bellows (4), and the heat replenishment and anti-condensation component (6) is used to replenish the temperature of the humidified gas before it enters the humidification mask (7) and to collect the condensate.

2. A humidifying face mask with heating and anti-condensation function according to claim 1, characterized in that: The preheating component (3) includes a preheating connector (31), one end of which is connected to the air outlet of the humidification tank (2), and the other end is connected to the air supply bellows (4).

3. A humidifying face mask with heating and anti-condensation function according to claim 1, characterized in that: The preheating component (3) further includes a temperature detection element (32) and a first heating element (33). The temperature detection element (32) is disposed on the outer wall of the preheating joint (31), and the first heating element (33) is disposed inside the preheating joint (31).

4. A humidifying face mask with heating and anti-condensation function according to claim 3, characterized in that: The inner wall of the preheating joint (31) is provided with a gas guide tube (34), and the circumferential side wall of the gas guide tube (34) is provided with a gas guide groove for humidifying gas to pass through.

5. A humidifying face mask with heating and anti-condensation function according to claim 1, characterized in that: The segmented heating and insulation sleeve (5) includes multiple sleeve segments arranged sequentially along the length of the gas transmission corrugated pipe (4), and each of the multiple sleeve segments can be detachably sleeved on the outer wall of the gas transmission corrugated pipe (4).

6. A humidifying face mask with heating and anti-condensation function according to claim 1, characterized in that: The temperature compensation and anti-condensation component (6) includes a liquid collection connector (61) and an air inlet heating cylinder (62). The air inlet heating cylinder (62) is located on the side of the liquid collection connector (61) near the air supply bellows (4). One end of the air inlet heating cylinder (62) is connected to the air supply bellows (4), and the other end is connected to the liquid collection connector (61).

7. A humidifying face mask with heating and anti-condensation function according to claim 1, characterized in that: The temperature compensation and anti-condensation component (6) further includes a second heating element (63), which is disposed inside the air intake heating cylinder (62) and arranged along the axial direction of the air intake heating cylinder (62).

8. A humidifying face mask with heating and anti-condensation function according to claim 6, characterized in that: The liquid collection connector (61) has a trapezoidal groove formed inside. The small end of the trapezoidal groove is set towards the air inlet heating cylinder (62), and the large end of the trapezoidal groove is set towards the humidification mask (7). The heat replenishment and anti-condensation component (6) also includes a flow guiding component (64), a liquid guiding pipe (65), and a liquid collection tank (66). The flow guiding component (64) is set inside the trapezoidal groove. One end of the liquid guiding pipe (65) is connected to the outer wall of the trapezoidal groove, and the other end is connected to the liquid collection tank (66).

9. A humidifying face mask with heating and anti-condensation function according to claim 8, characterized in that: The flow guiding assembly (64) includes a flow guiding support (641), a telescopic guide rod (642), a return spring (643), and a conical stop (646). The flow guiding support (641) is located on the side of the trapezoidal groove near the humidification mask (7). The telescopic guide rod (642) passes through the flow guiding support (641). The return spring (643) is sleeved on the outer wall of the telescopic guide rod (642). The conical stop (646) is located at one end of the telescopic guide rod (642) near the air intake heating cylinder (62).

10. A humidifying face mask with heating and anti-condensation function according to claim 9, characterized in that: The flow guiding assembly (64) further includes an inner flow guiding ring (644) and an outer flow guiding ring (645). The inner flow guiding ring (644) is sleeved on the outer wall of the telescopic guide rod (642), and the outer flow guiding ring (645) is disposed on the inner wall of the trapezoidal groove. The outer flow guiding ring (645) is located between the conical stop (646) and the inner flow guiding ring (644), and the inner flow guiding ring (644) is located between the outer flow guiding ring (645) and the flow guiding support (641).

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