Patent ID: 12233209

DETAILED DESCRIPTION OF THE EMBODIMENTS

The particular embodiments of the present disclosure will be described in detail below with reference to the drawings. It should be understood that the particular embodiments described herein are merely intended to describe and interpret the present disclosure, and are not intended to limit the present disclosure.

In the present disclosure, unless stated otherwise, the used words of orientation, such as “upper”, “lower”, “top” and “bottom”, generally refer to the orientations shown inFIG.2, and “inner” and “outer” refer to the interior and the exterior with respect to the contours of the components themselves.

An aspect of the present disclosure provides a ventilation-treatment apparatus, wherein the ventilation-treatment apparatus includes:

a headrest10, wherein the headrest10includes a first chamber11, and a gas inlet and a first gas hole12that communicate with the first chamber11, the gas inlet is for a gas from a gas source to enter the first chamber11, and the first gas hole12is disposed with a first valve assembly for opening and closing the first gas hole12; and

a patient-interface device20, wherein the patient-interface device20includes a main body21having a respiratory cavity, and a head band22connected to the main body21, the head band22includes a second chamber221, and a gas outlet and a second gas hole222that communicate with the second chamber221, the gas outlet communicates with the second chamber221and the respiratory cavity, and the second gas hole222is disposed with a second valve assembly for opening and closing the second gas hole222; and

the ventilation-treatment apparatus is configured for, when the first valve assembly and the second valve assembly contact, opening the first gas hole12and the second gas hole222, to make the first chamber11communicate with the second chamber221, and when the first valve assembly and the second valve assembly are separated, closing the first gas hole12and the second gas hole222.

By using the above technical solution, when the ventilation-treatment apparatus according to the present disclosure is being used, when the head band22and the headrest10contact, the first valve assembly and the second valve assembly contact to open the first gas hole12and the second gas hole222, thereby communicating the first chamber11with the second chamber221, whereby the gas entering the first chamber11from the gas source may enter the second chamber221and further enter the respiratory cavity of the patient-interface device20for the patient to inhale. When the head band22and the headrest10are separated, the first valve assembly and the second valve assembly are separated to close the first gas hole12and the second gas hole222, thereby preventing the gas inside the first chamber11and the second chamber221from flowing out via the first gas hole12and the second gas hole222, respectively. Therefore, the operations on the mainframe, the patient-interface device and the ventilation pipeline when the treatment is paused may be omitted, to implement simple operation and anytime usage which can improve the reliability of the ventilation treatment and the comfort of the patient in the treatment process.

In the above description, the first valve assembly and the second valve assembly may be any structure that may implement the function of opening and closing the gas holes.

According to an embodiment of the present disclosure, the first valve assembly may include a first valve body13, and the first valve body13penetrates the first gas hole12and is capable of moving reciprocatingly relative to the first gas hole (12) and in an axial direction of the first gas hole (12), to move between a first opening position of opening the first gas hole (12) and a first closing position of closing the first gas hole (12); and the second valve assembly may include a second valve body23, and the second valve body23penetrates the second gas hole222and is capable of moving reciprocatingly relative to the second gas hole (222) and in an axial direction of the second gas hole (222), to move between a second opening position of opening the second gas hole (222) and a second closing position of closing the second gas hole (222). When the first valve body13and the second valve body23contact, the first valve body13and the second valve body23move to the first opening position and the second opening position, respectively; and when the first valve body13and the second valve body23are separated, the first valve body13and the second valve body23move to the first closing position and the second closing position, respectively.

In the above description, the movement of the first valve body13and the second valve body23may adopt pressure driving, electric driving or any other suitable manner.

Particularly, according to an embodiment of the present disclosure, the first valve assembly may include a first electrical driving member, and the first electrical driving member is configured to be capable of, when the first valve body13and the second valve body23contact, controlling the first valve body13to move to the first opening position, and, when the first valve body13and the second valve body23are separated, controlling the first valve body13to move to the first closing position; and the second valve assembly may include a second electrical driving member, and the second electrical driving member is configured to be capable of, when the second valve body23and the first valve body13contact, controlling the second valve body23to move to the second opening position, and, when the second valve body23and the first valve body13are separated, controlling the second valve body23to move to the second closing position. In other words, in the present embodiment, the movement of the first valve body13and the second valve body23is electrically driven, and the first valve body13and the second valve body23may be electrically operated valves.

According to another embodiment of the present disclosure, the headrest10and the head band22may be made to squeeze when contacting each other (for example, by the effect of the weight of the head of the patient), whereby the movement of the first valve body13and the second valve body23is implemented by the effect of the mutual squeezing. In other words, in the present embodiment, the movement of the first valve body13and the second valve body23is pressure-driven. The first valve assembly may include a first elastic member14, and the first valve assembly comprises a first elastic member (14), and the first clastic member (14) is configured to be capable of, being compressed to allow the first valve body (13) to move to the first opening position when the first valve body is under a pressure, and, being restored to drive the first valve body (13) to move to the first closing position when the first valve body (13) is released from the pressure; and the second valve assembly comprises a second elastic member (24), and the second elastic member (24) is configured to be capable of being compressed to allow the second valve body (23) to move to the second opening position when the second valve body (23) is under a pressure, and, being restored to drive the second valve body (23) to move to the second closing position when the second valve is released from the pressure.

In the present disclosure, the first valve body13and the second valve body23may have any suitable structures. According to an embodiment of the present disclosure, as shown inFIGS.2to5, the first valve body13includes a first penetrating part131, and a first covering part132and a first stopping part133that are connected to the two ends of the first penetrating part131, the first penetrating part131penetrates the first gas hole12and forms a radial gap with the first gas hole12, the first covering part132and the first stopping part133are located at the inner side and the outer side of the first gas hole12, respectively, the first covering part132is for covering and opening the radial gap, the first stopping part133is for preventing the first valve body13from disengaging the first gas hole12, the second valve body23includes a second penetrating part231, and a second covering part232and a second stopping part233that are connected to the two ends of the second penetrating part231, the second penetrating part231penetrates the second gas hole222and forms a radial gap with the second gas hole222, the second covering part232and the second stopping part233are located at the inner side and the outer side of the second gas hole222, respectively, the second covering part232is for covering and opening the radial gap, and the second stopping part233is for preventing the second valve body23from disengaging the second gas hole222.

In the above embodiment, the first elastic member14may be a compression spring nested to the first penetrating part131, and the first elastic member14may be connected between the first stopping part133and the periphery of the first gas hole12. The first elastic member14may also be configured that one end is connected to the first penetrating part131, and the other end is connected to the periphery of the first gas hole12(as shown inFIG.2), in which case the first valve body13may include merely the first penetrating part131and the first covering part132(as shown inFIG.6). The second elastic member24may be a compression spring nested to the second penetrating part231, and the second elastic member24may be connected between the second stopping part233and the periphery of the second gas hole222. The second elastic member24may also be configured that one end is connected to the second penetrating part231, and the other end is connected to the periphery of the second gas hole222(as shown inFIG.2), in which case the second valve body23may include merely the second penetrating part231and the second covering part232(as shown inFIG.6).

In usage, when the first valve body13and the second valve body23are contacting and squeezing each other, as shown inFIG.3, the first valve body13is applied an upward force and thus moves upwardly relatively to the first gas hole12, whereby the first covering part132gets further away from the first gas hole12and thus opens the radial gap between the first penetrating part131and the first gas hole12, and the first elastic member14is further compressed; and the second valve body23is applied a downward force and thus moves downwardly relatively to the second gas hole222, whereby the second covering part232gets further away from the second gas hole222and thus opens the radial gap between the second penetrating part231and the second gas hole222, and the second elastic member24is further compressed. In this case, as shown by the arrow inFIG.3, the gas inside the first chamber11may enter the second chamber221via the two radial gaps. Certainly, the gas inside the second chamber221may enter the first chamber11via the two radial gaps. When the first valve body13and the second valve body23are separated from each other, as shown inFIG.2, the first valve body13moves downwardly relatively to the first gas hole12by the effect of the restoration of the first elastic member14, whereby the first covering part132gets closer to the first gas hole12and thus covers the radial gap between the first penetrating part131and the first gas hole12; and the second valve body23moves upwardly relatively to the second gas hole222by the effect of the restoration of the second elastic member24, whereby the second covering part232gets closer to the second gas hole222and thus covers the radial gap between the second penetrating part231and the second gas hole222.

In the present disclosure, the ventilation-treatment apparatus may further include a guiding member for guiding the contacting between the first valve assembly and the second valve assembly.

According to an embodiment of the guiding member according to the present disclosure, the guiding member may include a first magnet15disposed at the periphery of the first gas hole12and a second magnet25disposed at the periphery of the second gas hole222, and the magnetic poles of the first magnet15and the magnetic poles of the second magnet25are set oppositely and correspondingly. When the headrest10and the head band22contact, the first magnet15may attract the second magnet25, whereby the first valve assembly and the second valve assembly are aligned and contacted. In addition, the first magnet15and the second magnet25that are attracted together may seal the communication between the first gas hole12and the second gas hole222. It should be noted that the first magnet15may be disposed at the inner side or the outer side of the periphery of the first gas hole12, and the second magnet25may be disposed at the inner side or the outer side of the periphery of the second gas hole222. Preferably, as shown inFIG.2, the first magnet15is disposed on the inner side of the periphery of the first gas hole12, and the second magnet25is disposed on the inner side of the periphery of the second gas hole222, which may prevent damaging or falling of the first magnet15and the second magnet25after long-term usage of and friction between the headrest10and the head band22.

Optionally, as shown inFIGS.2and3, the head band22may be disposed with a protrusion223, a slot224is disposed at the top of the protrusion223, the second gas hole222is disposed in the slot224, the second magnet25extends in the circumferential direction of the slot opening of the slot224, the first magnet15extends in the periphery of the first gas hole12, and the slot opening of the slot224is scalable with the headrest10by the attraction between the first magnet15and the second magnet25. Such a configuration may further improve the leak proofness of the communication between the first gas hole12and the second gas hole222. In addition, it may be understood that, in another embodiment, the protrusion223may also be disposed at the headrest10. In this case, the first magnet15extends in the circumferential direction of the slot opening of the slot224, the second magnet25extends in the periphery of the second gas hole222, and the slot opening of the slot224is scalable with the head band22by the attraction between the first magnet15and the second magnet25.

In the above embodiment, the first electrical driving member and the second electrical driving member may be configured for, when the first magnet15and the second magnet25are attracting, controlling the first valve body13and the second valve body23to move to the opening position, and, when the first magnet15and the second magnet25are separated, controlling the first valve body13and the second valve body23to move to the closing position.

According to another embodiment of the guiding member according to the present disclosure, as shown inFIGS.4and5, the guiding member may include a protrusion223and a depression16that match, the protrusion223is disposed at one of the headrest10and the head band22, the depression16is disposed at the other of the headrest10and the head band22, the first gas hole12is disposed at one of the protrusion223and the depression16, and the second gas hole222is disposed at the other of the protrusion223and the depression16. It should be noted that a slot224may be disposed at the top of the protrusion223, and the first gas hole12or the second gas hole222is disposed in the slot224. When the headrest10and the head band22contact, the protrusion223may be embedded into the depression16, whereby the first valve assembly and the second valve assembly are aligned and contacted. In addition, the protrusion223and the depression16that are embedded into each other may further improve the leak proofness of the communication between the first gas hole12and the second gas hole222. Certainly, the first magnet15and the second magnet25may also be further disposed at the protrusion223and the depression16, respectively.

In the present disclosure, in order to ensure the leak proofness of the communication between the first gas hole12and the second gas hole222, the ventilation-treatment apparatus may include a sealing member, and the scaling member is for, when the first valve assembly and the second valve assembly contact, sealing the communication between the first gas hole12and the second gas hole222. Particularly, in the embodiment shown inFIGS.1and2, the scaling member may be formed by the first magnet15and the second magnet25, the scaling member may also be formed by a sealing ring that is nested outside the protrusion223and extends beyond the upper end surface of the protrusion223, and when the first valve assembly and the second valve assembly contact, the sealing ring may contact and squeeze the periphery of the first gas hole12to implement the sealing. In the embodiment shown inFIGS.3and4, the scaling member may be a scaling ring17, and the sealing ring17is nested outside the protrusion223or inside the depression16, to, when the protrusion223is embedded inside the depression16, seal the radial gap between the protrusion223and the depression16. The scaling ring17may be a silica-gel piece, and when the protrusion223is embedded inside the depression16, the sealing ring17is properly squeezed to implement the scaling. In addition, in the structure of the sealing ring shown inFIGS.4and5, the sealing ring17may serve to guide the protrusion223to be embedded into the depression16.

In the above embodiment, the mode of the electric driving of the movement of the first valve body13and the second valve body23may include: when the protrusion223is embedded inside the depression16, forming an electrifying loop or triggering a contact switch, and in turn controlling the first valve body13and the second valve body23to move to the opening position; and when the protrusion223is separated from the depression16, disconnecting the electrifying loop or triggering a contact switch, and in turn controlling the first valve body13and the second valve body23to move to the closing position.

In the present disclosure, the headrest10may be disposed with a plurality of first gas holes12, the head band22may be disposed with a plurality of second gas holes222, and when the head band22and the headrest10contact, and a part of the second gas holes222are capable of being selectively in communication with a part of the first gas holes12one to one correspondingly. In other words, no matter whether the headrest10and the head band22locally contact or totally contact, as long as they contact, the first gas hole12and the second gas hole222at the correspondingly contacting parts may be in communication with each other to make the gas inside the headrest10to enter the head band22, while the first gas hole12and the second gas hole222at the no-contacting area are closed, whereby no gas leakage happens. Accordingly, the ventilation-treatment apparatus according to the present disclosure, in the process of nighttime treatment, no matter whether the patient turns the body, turns the head or performs another action, may perform the ventilation treatment as long as the head band22contacts the headrest10, which may effectively ensure the reliability of the ventilation treatment, and improve the flexibility of the usage of the ventilation-treatment apparatus.

In the present disclosure, the patient-interface device20may be a breathing mask such as a nasal mask, an oral-nasal mask, a nasal pillow mask and a full-surface mask. For example, as shown inFIGS.1and8-9, the main body21of the patient-interface device20may include a frame211and a pad212, the pad212is mounted to the frame211and defines the respiratory cavity with the frame211, and the head band22is connected to the frame211. The head band22may include a main head-band body and a connecting band for connecting the main head-band body to the frame211, the main head-band body may cover the afterbrain and the two lateral sides of the head of the patient, the second chamber221is defined by the main head-band body, and the connecting band defines a communicating cavity for communicating the second chamber221and the respiratory cavity. As shown inFIG.6, the frame211may be disposed with a connecting opening214for the connecting band to connect and communicate the respiratory cavity and the communicating cavity.

Optionally, the connecting band may include an upper side band225and a lower side band226, both of the upper side band225and the lower side band226may be connected to the frame211(as shown inFIG.8), and at least one of the upper side band225and the lower side band226has the communicating cavity.

In addition, in the embodiment shown inFIG.1, the main body21may also include a forehead support213connected to the frame211, the upper side band225is connected to the forehead support213, and the lower side band226is connected to the frame211. In this case, if the communicating cavity is to be disposed at the upper side band225, the forehead support213may be disposed with a hollow structure that communicates the communicating cavity with the respiratory cavity.

In the present disclosure, in order to prevent the headrest10and the head band22from being crushed to block the gas flowing, a honeycomb component or another supporting component may be disposed inside the headrest10and the head band22. That also facilitates improving the comfort of the head.

In the present disclosure, as shown inFIG.1, the ventilation-treatment apparatus may further include a mainframe40serving as the gas source and a ventilation pipeline50for communicating the mainframe40with the headrest10.

In addition, as shown inFIG.7, the ventilation-treatment apparatus may further include a tube assembly30, and the tube assembly30is connected to the main body21to communicate the respiratory cavity with the gas source. Particularly, one end of the tube assembly30may be connected to the frame211, and the other end may be connected to the ventilation pipeline50. In this case, the ventilation-treatment apparatus may adopt two modes of the ventilation, wherein one is to ventilate by using the headrest10and the head band22, and the other is to ventilate by using the tube assembly30. In usage, a suitable ventilation mode may be selected according to actual situations. It should be noted that, when the ventilation by using the headrest10and the head band22is adopted, the tube assembly30and the ventilation pipeline50may be disconnected, and the tube assembly30may be blocked by using a plug. Certainly, optionally, the tube assembly30may also be taken down from the frame211, and the opening for connecting the tube assembly30on the frame211is blocked by using a plug. When the ventilation by using the tube assembly30is adopted, optionally, the first valve assembly is disposed at one of the tube assembly30and the ventilation pipeline50, and the second valve assembly is disposed at the other of the tube assembly30and the ventilation pipeline50. In usage, when the tube assembly30and the ventilation pipeline50are connected, the first gas hole12and the second gas hole222are opened, and when the tube assembly30and the ventilation pipeline50are disconnected, the first gas hole12and the second gas hole222are closed.

In the usage of current ventilation-treatment apparatuses, when the patient intends to pause the treatment and thus directly disengages the breathing mask from the ventilation pipeline, because the mainframe is still in the operating state, that results in a large gas-leakage noise at the port of the ventilation pipeline, and a device alarming might be triggered because of a too large gas-leakage amount. In order to solve the above problems, the present disclosure provides a novel tube assembly30. The tube assembly30may include a first tube piece31and a second tube piece32, the tube assembly30has a connecting state in which the first tube piece31and the second tube piece32are coaxially plug-connected and a separating state in which the first tube piece31and the second tube piece32are separate from each other, and the first tube piece31has an inlet end for connecting the gas source and an outlet end for connecting the second tube piece32; the first tube piece31has a discharging hole311, and the discharging hole311is configured so that, in the connecting state, the discharging hole311is closed to make the gas from the gas source to enter the second tube piece32, and in the separating state, the discharging hole311is opened to make the gas from the gas source to be discharged from the discharging hole311to the external; and the tube assembly30further includes a valve member, and the valve member is configured so that, in the connecting state, the valve member opens the outlet end of the first tube piece31to make the gas from the gas source to enter the second tube piece32, and in the separating state, the valve member closes the outlet end to make the gas from the gas source to be discharged from the discharging hole311to the external.

In the above description, it should be noted that the hole area of the discharging hole311is less than the area of the outlet end of the first tube piece31; in other words, the ventilation capacity of the discharging hole311is less than the ventilation capacity of the outlet end. In usage, by configuring the hole diameter and the quantity of the discharging hole311, the flow rate of the gas discharged from the discharging hole311may be controlled, whereby, when the first tube piece31and the second tube piece32are separate from each other, the gas cannot flow out of the outlet end of the first tube piece31, and may merely flow out of the discharging hole311at a desired lower flow rate.

In usage, when the patient intends to pause the treatment (for example, getting up and going to the bathroom), it is merely required to separate the first tube piece31and the second tube piece32. At this point, the outlet end of the first tube piece31is closed, the discharging hole311is opened, the first tube piece31discharges the gas at a controllable flow rate, and the ventilation-treatment apparatus may operate normally and does not make an alarm due to gas leakage or pipeline falling, whereby the bed partner is not disturbed. Furthermore, the ventilation-treatment apparatus may be used and stopped at any time, and does not influence other actions of the patient, with easy and convenient operation and usage, and good safety and sanitary.

In the tube assembly30according to the present disclosure, by using the above technical solutions, when the first tube piece31and the second tube piece32are plug-connected to each other, the valve member opens the outlet end of the first tube piece31to allow the gas to flow from the first tube piece31to the second tube piece32, and the discharging hole311is closed to prevent the gas from flowing out of the discharging hole311at the same time, whereby the gas may merely flow from the first tube piece31to the second tube piece32. When the first tube piece31and the second tube piece32are separate from each other, the valve member closes the outlet end of the first tube piece31to prevent the gas from flowing out of the outlet end, and simultaneously the discharging hole311is opened to make the gas to be discharged from the discharging hole311to the external at a lower flow rate. Accordingly, the tube assembly according to the present disclosure cannot only ensure the effective flowing of the gas, but also, when the first tube piece31and the second tube piece32are separate from each other, may enable the gas to be discharged to the external at a lower flow rate, thereby preventing the generation of gas-leakage noise.

According to an embodiment of the valve member according to the present disclosure, the valve member includes a valve plate33rotatably disposed inside the first tube piece31, the rotation axis of the valve plate33is perpendicular to the axial direction of the first tube piece31, and the valve plate33may rotate between a first position where the discharging hole311is closed and the outlet end of the first tube piece31is opened (referring toFIG.11) and a second position where the discharging hole311is opened and the outlet end of the first tube piece31is closed (referring toFIG.10). In this case, the valve plate33may be configured in two different modes. One is to configure the valve plate33so that, in the second position, the edge of the valve plate33abuts the inner wall surface of the first tube piece31; in other words, the valve plate33may completely block the outlet end. In this case, the discharging hole311may be disposed in the tube wall of the first tube piece31(as shown inFIGS.10and11), and may also be disposed in the valve plate33(as shown inFIG.12). The other mode is to configure the valve plate33so that, in the second position, the edge of the valve plate33and the inner wall surface of the first tube piece31have a gap therebetween, and the gap forms the discharging hole311(as shown inFIGS.14and15).

In other words, in the above modes, both of the opening and closing of the discharging hole311and the opening and closing of the outlet end of the first tube piece31are implemented by using the valve plate33. Certainly, according to the different positions of the discharging hole311in the tube wall of the first tube piece31, the valve plate33may also cooperate with the second tube piece32to implement the function of the valve member. As shown inFIG.13, the valve plate33is connected to the top of the tube wall of the first tube piece31, and the discharging hole311is disposed at the bottom of the tube wall of the first tube piece31. In this case, when the second tube piece32is inserted into the first tube piece31, the second tube piece32pushes the valve plate33to the first position to open the outlet end of the first tube piece31, and simultaneously the tube wall of the second tube piece32blocks the discharging hole311. It should be noted that, after the second tube piece32has been inserted into the first tube piece31, the outer wall surface of the second tube piece32is closely adhered to the side surface of the valve plate33and the inner wall surface of the first tube piece31, to prevent gas leakage.

According to another embodiment of the valve member according to the present disclosure, as shown inFIGS.16to20, the valve member includes a valve core34that is movably disposed inside the first tube piece31in the axial direction of the first tube piece31, the discharging hole311is disposed in the tube wall of the first tube piece31, and the second tube piece32is disposed with a gas flowing channel321. The tube assembly30is configured so that, in the connecting state, the valve core34moves to the upstream position of the discharging hole311in the direction of the gas flowing (i.e., the direction from the first tube piece31to the second tube piece32), the part of the second tube piece32that protrudes into the first tube piece31forms, together with the valve core34, the valve member to close the discharging hole311, and the first tube piece31communicates with the second tube piece32via the gas flowing channel321(referring toFIGS.18and20); and in the separating state, the valve core34moves to the downstream position of the discharging hole311in the direction of the gas flowing to close the outlet end of the first tube piece31(referring toFIGS.17and19).

In the above description, the valve core34may be any component that is capable of moving inside the first tube piece31and capable of blocking the outlet end of the first tube piece31; for example, the valve core34may be a cylindrical body or a spherical body. In usage, for example, as shown inFIGS.17and18, when the second tube piece32is inserted into the first tube piece31, the second tube piece32may push the valve core34, which is originally located at the second position (referring toFIG.17), to move rightwardly to the first position (referring toFIG.18), at which point the discharging hole311is covered by the tube wall of the second tube piece32and thus closed, and the gas inside the first tube piece31enters the second tube piece32via the gap between the valve core34and the inner wall surface of the first tube piece31and the gas flowing channel321. When the second tube piece32and the first tube piece31are separate, the valve core34moves, by the effect of the mobilization force of the gas, from the first position back to the second position, thereby blocking the outlet end, to make the gas to be discharged via the discharging hole311.

It may be understood that, in order to enable the valve core34to block the outlet end at the second position and generate the gap with the inner wall surface of the first tube piece31when the valve core34moves to the first position, while the first tube piece31is configured to be of a non-constant-diameter structure, as shown inFIGS.17to20.

In order to prevent the valve core34from, in the first position, continuing to move rightwardly or turning over, to affect the usage of the valve core34or even make failure of the device, the valve member may further include a valve-core stopper37disposed inside the first tube piece31, and the valve-core stopper37is configured so that it may limit the valve core34. Particularly, for example, as shown inFIG.21, the valve-core stopper37may be an annular boss disposed on the inner wall of the first tube piece31, and when the valve core34is in the first position, the right side surface of the valve core34is capable of abutting the left side surface of the annular boss, whereby the valve core34cannot continue to move rightwardly, and cannot turn over. Certainly, the right side surface of the valve core34may also have a gap with the left side surface of the annular boss, wherein the gap is less than the axial length of the valve core34, which may prevent turning-over of the valve core34in the horizontal direction (i.e., left-right turning-over). Optionally, the gap between the right side surface of the valve core34and the left side surface of the annular boss is preferably set to be less than the maximum diameter of the valve core34, which may prevent turning-over of the valve core34in the vertical direction (i.e., up-down turning-over). In addition, for example, as shown inFIG.22, the valve core34may also be made to be more stable itself in structure. As compared with the valve core34inFIG.21, the center of gravity of the valve core34inFIG.22is deviated to right, which may improve the stability of the valve core34in the first position. Optionally, referring toFIG.22, the magnitude of a may be between one third and two thirds of c, or a2+b2=c2, which may prevent turning-over of the valve core34. Certainly, the present disclosure is not limited thereto, and the valve-core stopper37may be any component or structure that may limit the valve core34as described above.

In the present disclosure, when the tube assembly30is in the connecting state, the first tube piece31and the second tube piece32may be configured to be capable of rotating relatively to each other, and may also be configured to be not capable of rotating. In addition, the tube assembly30may further include a connecting structure for connecting the first tube piece31and the second tube piece32, and the connecting structure is configured to be capable of preventing the first tube piece31and the second tube piece32from separating from each other in the connecting state. That may prevent the first tube piece31and the second tube piece32from being separated accidentally to affect the gas flowing.

According to an embodiment of the connecting structure according to the present disclosure, the connecting structure includes a clip312and a clipping slot322that match, the clip312is disposed at one of the first tube piece31and the second tube piece32, and the clipping slot322is disposed at the other of the first tube piece31and the second tube piece32.

In the above embodiment, the clip312and the clipping slot322may be configured in various modes. For example, as shown inFIGS.23and24, the clip312may be disposed on the outer wall surface of the second tube piece32, and the clipping slot322may be disposed on the inner wall surface of the first tube piece31, wherein when it is required to separate the first tube piece31and the second tube piece32, the clip312and the clipping slot322may be separated by using a heavy force.

For example, as shown inFIGS.25and26, the clipping slot322may be disposed on the outer wall surface of the second tube piece32, the clip312may be rotatably connected to the outer wall surface of the first tube piece31, and the clip312is configured to be capable of swinging in the radial direction of the first tube piece31to be snap-fitted to or separated from the clipping slot322. The clipping slot322may be of an arc shape or annular shape that extends in the circumferential direction of the second tube piece32, and its length of extension is greater than the corresponding length of its snap fitting to the clip312; in this case, one clipping slot322may be snap-fitted to a plurality of clips312. In addition, in such a mode of configuration, in order to prevent the clip312from disengaging from the clipping slot322when it is snap-fitted to the clipping slot322, the clip312may be configured to have a snap-fitting state in which it is snap-fitted to the clipping slot322and a separating state in which it is separated from the clipping slot322. Furthermore, the clip312swings from the snap-fitting state to the separating state merely when it is applied a force, and the clip312is always in the snap-fitting state naturally. As shown inFIG.25, when it is required to snap-fit the clip312to the clipping slot322, the right end of the clip312may be pressed to firstly make the clip312to swing to the separating state to allow it to be snap-fitted to the clipping slot322. A slide-proof part313may be disposed on the outer side surface of the right end of the clip312.

Certainly, another component may also be used to prevent the clip312from disengaging from the clipping slot322when it is snap-fitted to the clipping slot322. In other words, the tube assembly30may include a limiting member, and the limiting member is for preventing the clip312from disengaging from the clipping slot322when it is snap-fitted to the clipping slot322. For example, as shown inFIGS.27to29, the limiting member is a lantern ring35that is movably nested outside the first tube piece31or the second tube piece32in the axial direction of the first tube piece31. When the clip312is snap-fitted to the clipping slot322, the lantern ring35may be moved leftwardly to cover the clip312, thereby preventing the clip312from rotating. When it is required to separate the first tube piece31and the second tube piece32, firstly the lantern ring35is moved rightwardly to expose the clip312, and subsequently the clip312is rotated till it is separated from the clipping slot322.

It may be envisaged that, in another embodiment, as shown inFIG.30, the connecting structure may also merely include the lantern ring35, the lantern ring35is rotatably connected to the first tube piece31, and the inner wall surface of the lantern ring35may be disposed with an internal thread. Correspondingly, the outer wall surface of the second tube piece32may be disposed with an external thread, and the internal thread and the external thread may be mutually locked by rotating the lantern ring35, whereby the first tube piece31and the second tube piece32are connected. When it is required to separate the first tube piece31and the second tube piece32, the lantern ring35may be rotated in the opposite direction, whereby the threads are released, to complete the separation.

For example, as shown inFIGS.31to33, the clipping slot322is an L-shaped slot disposed in the tube wall of the second tube piece32, the L-shaped slot includes an axial part and a radial part, the clip312is a cylindrical piece that is protrusively disposed on the tube wall of the first tube piece31, and the cylindrical piece is capable of, when the first tube piece31and the second tube piece32are plug-connected, entering the axial part and moving to the radial part to implement the snap fitting. In this case, in order to prevent the clip312from disengaging from the clipping slot322when it is snap-fitted to the clipping slot322, as shown inFIG.32, the limiting member may be a lug323disposed inside the radial part, and the lug323may releasably stop the cylindrical piece. In usage, by rotating the first tube piece31or the second tube piece32, the cylindrical piece may move over the lug323and move to the left side of the lug323to implement the limiting. When it is required to separate the first tube piece31and the second tube piece32, the first tube piece31or the second tube piece32may be rotated in the opposite direction, whereby the cylindrical piece moves over the lug323and moves to the right side of the lug323, and in turn disengages the clipping slot322.

It should be noted that, in the above description, the clip312and the clipping slot322may exchange the positions. In addition, the clip312and the clipping slot322are not limited to the above-described structures, and other structures that may implement their function also fall within the protection scope of the present disclosure.

According to another embodiment of the connecting structure according to the present disclosure, as shown inFIGS.34to36, the connecting structure includes a first protrusion314and a second protrusion324that match, the first protrusion314is disposed on the inner wall surface or the outer wall surface of the first tube piece31, the second protrusion324is disposed on the outer wall surface or the inner wall surface of the second tube piece10, and the first protrusion314and the second protrusion324are configured to be capable of snap-fitting or separating by the rotation relative to each other of the first tube piece31and the second tube piece32. Particularly, as shown inFIG.34, the first protrusion314may be T-shaped. As shown inFIG.35, the second protrusion324may include two convex parts that are separated in the circumferential direction of the second tube piece32. When the second tube piece32is plug-connected to the first tube piece31, the first protrusion314and the second protrusion324are made to avoid each other, and after the plug connection, by rotating the first tube piece31or the second tube piece32, the first protrusion314and the second protrusion324may face each other axially to implement the snap fitting, at which point the axial part of the first protrusion314is snap-fitted between the two convex parts to implement the rotary limiting. Certainly, the first protrusion314and the second protrusion324are not limited to the structures shown inFIGS.34and35, and other structures that may implement the rotary snap fitting also fall within the protection scope of the present disclosure.

It should be noted that, in the above-described embodiments of the connecting structure, the connecting structure may include a plurality of clips312and a plurality of clipping slots322. The plurality of clips312and the plurality of clipping slots322may be disposed separately in the circumferential directions of the first tube piece31and the second tube piece32, respectively.

According to yet another embodiment of the connecting structure according to the present disclosure, the connecting structure may include a first magnet and a second magnet which magnetic poles are opposite, the first magnet is set at one of the first tube piece31and the second tube piece32, and the second magnet is set at the other of the first tube piece31and the second tube piece32. After the first tube piece31and the second tube piece32have been plug-connected, further connection may be implemented by the attraction between the first magnet and the second magnet.

According to still another embodiment of the connecting structure according to the present disclosure, the connecting structure may include a first thread and a second thread that match, the first thread is disposed at one of the first tube piece31and the second tube piece32, and the second thread is disposed at the other of the first tube piece31and the second tube piece32. In other words, the first tube piece31and the second tube piece32may be interconnected by the threads disposed on the inner wall surfaces or the outer wall surfaces.

The connecting structure according to the present disclosure is not limited to the above-described embodiments, and the connecting structure may also have other embodiments. For example, the second tube piece32may be disposed with a metal that may be magnetically attracted (for example, iron), and the first tube piece31may be disposed with an electromagnet device and a switch. Alternatively, the first tube piece31and the second tube piece32are disposed with an electric buckle and a buckle slot that match. When the second tube piece32is inserted into the first tube piece31, the switch is closed to form a loop, and the electromagnet, when electrified, has magnetism, to attract the metal on the second tube piece32, whereby the first tube piece31and the second tube piece32do not easily disengage. Alternatively, after the loop has been formed, the electric buckle acts to buckle the buckle slot in the second tube piece32. When the first tube piece31and the second tube piece32are to be separated, the switch is operated, and the electromagnet, when powered off, loses the magnetism, or the electric buckle, when powered off, is restored, whereby the first tube piece31and the second tube piece32may be easily separated.

In the present disclosure, the tube assembly30may further include a bent pipe36, and the bent pipe36is connected to the end of the second tube piece32that is further from the first tube piece31. The bent pipe36and the second tube piece32may be configured to be capable of rotating relatively to each other, and may also be configured to be not capable of rotating. The bent pipe36and the second tube piece32may also be formed integrally. An anti-suffocation valve plate361may be disposed inside the bent pipe36, to ensure the unidirectional flowing of the gas. In such a case, the tube assembly30is connected to the frame211by the bent pipe36.

In the present disclosure, the opening and closing of the outlet end of the first tube piece31and the opening and closing of the discharging hole311may also be automatically controlled. For example, after the first tube piece31and the second tube piece32have been connected, an electric signal may be generated (for example, by using a loop connection, a sensor, a touch switch and so on), and the signal controls the outlet end of the first tube piece31to open and the discharging hole311to close. After the first tube piece31and the second tube piece32have been separated, the connection between the first tube piece31and the second tube piece32is broken, and no electric signal is generated, at which point the outlet end of the first tube piece31is closed, and the discharging hole311is opened, to discharge the gas at a controllable flow rate.

In the present disclosure, the parameters of the discharging hole311(such as the quantity, the diameter thickness, the hole inner cone, the outer cone and the hydrophobic material) may be particularly set to further control the flow rate and reduce the noise. For example, when the discharging hole311is disposed in the tube wall of the first tube piece31, one of the inner wall surface and the outer wall surface of the tube wall may be formed by using a hydrophobic material or a hydrophilic material, or be spread-coated with a hydrophobic material or a hydrophilic material. The other of the wall surfaces may be formed or spread-coated by the other of a hydrophobic material and a hydrophilic material. The discharging hole311may be configured to be of a structure in which the ventilation areas at the two ends are different, for example a trapezoid or a hourglass shape. Particularly, when the tube assembly30is applied to a breathing mask, the discharging hole311may be configured according to the depth of the mask in the direction of the sagittal section (cutting a human body into a left part and a right part, the section interface between the left part and the right part refers to a sagittal plane). When the depth is lower, or, in other words, the face of the patient has a lower distance from the discharging hole311, it may be set that the proximal discharging-hole area is greater than the distal discharging-hole area, to prevent gas-flow intersection to make a large noise. When the depth is higher, or, in other words, the face of the patient has a higher distance from the discharging hole311, it may be set that the proximal discharging-hole area is greater than the distal discharging-hole area, which facilitates the dissipation of the discharged gas. In addition, a turbulent member (for example, a spoiler) may be disposed between the proximal component and the distal component, thereby reducing the noise of the gas discharging.

In the present disclosure, the quantity, the size, the spacing and the overall layout of the discharging holes311may have various embodiments. For example, the diameter of the discharging hole311may range 0.4 mm-1.5 mm, preferably 0.6 mm-0.8 mm. The thickness of the position where the discharging hole311is disposed may be 1 mm-20 mm.

Another aspect of the present disclosure provides a ventilation-treatment method, wherein the method is performed by using the ventilation-treatment apparatus stated above, and the method includes the following steps:

generating a first signal when the first valve assembly and the second valve assembly contact, and according to the first signal, controlling the mainframe40to start up or increase the ventilation capacity (i.e., increasing the gas flow rate from the mainframe40to the ventilation pipeline50); and/or

generating a second signal when the first valve assembly and the second valve assembly are separated, and according to the second signal, controlling the mainframe40to shut down or reduce the ventilation capacity (i.e., reducing the gas flow rate from the mainframe40to the ventilation pipeline50).

In the present disclosure, the action of the mainframe40preferably happens after the actions of the first valve body13and the second valve body23. In addition, the method may further include: after the mainframe40has been started up, when the head band22and the headrest10disengage, enabling the ventilation-treatment apparatus to emit an alarm; according to the first signal, controlling the first valve body13and the second valve body23to move to the opening position; and according to the second signal, controlling the first valve body13and the second valve body23to move to the closing position.

In the present disclosure, in order to generate the first signal and the second signal, a heat sensing device or a pressure detecting device may be disposed at the headrest10. In usage, when the heat sensing device has sensed heat within a particular distance range, or when the pressure detecting device has detected the pressure by the head of the patient, the first signal is generated. When the heat sensing device does not sense heat within the particular distance range, or when the pressure detecting device does not detect the pressure by the head of the patient, the second signal is generated. It may be understood that the heat sensing device or the pressure detecting device may also be disposed at any other suitable position, for example a mattress.

According to an embodiment of the present disclosure, the pressure detecting device is disposed at the surface of the headrest10. When the patient lies down and prepares to accept the treatment, the head band22and the headrest10contact, and the first valve body13and the second valve body23automatically move to the opening position under the pressure of the head, to form a ventilation channel. At this point, the pressure detecting device detects the pressure, generates the first signal, and controls the mainframe40to start to operate in turn according to the first signal. When the patient gets up, the head band22and the headrest10are separated, and the first valve body13and the second valve body23automatically move to the closing position. At this point, the pressure detecting device does not detect the pressure, generates the second signal, and controls the mainframe40to stop operating in turn according to the second signal.

The automatic ventilation-treatment method using the ventilation-treatment apparatus has been described above. It should be noted that, in usage, the patient may select manual treatment or automatic treatment according to demands, wherein the manual treatment refers to that the actions of the mainframe40(such as starting-up and shutting-down) are manually controlled.

The preferable embodiments of the present disclosure have been described in detail above with reference to the drawings. However, the present disclosure is not limited to the particular details of the above embodiments. Within the scope of the technical concept of the present disclosure, the technical solutions of the present disclosure may have various simple variations, and all of those simple variations fall within the protection scope of the present disclosure.

In addition, it should be noted that the particular technical features described in the particular embodiments, subject to no contradiction, may be combined in any feasible way. In order to avoid unnecessary repeating, the feasible modes of combination will not be described further herein.

Furthermore, the different embodiments of the present disclosure may also be combined in any way, and, as long as the combinations do not depart from the concept of the present disclosure, they should also be considered as the contents disclosed by the present disclosure.

The above-described device embodiments are merely illustrative, wherein the units that are described as separate components may or may not be physically separate, and the components that are displayed as units may or may not be physical units; in other words, they may be located at the same one location, and may also be distributed to a plurality of network units. Some or all of the modules may be selected according to the actual demands to implement the purposes of the solutions of the embodiments. A person skilled in the art can understand and implement the technical solutions without paying creative work.

The “one embodiment”, “an embodiment” or “one or more embodiments” as used herein means that particular features, structures or characteristics described with reference to an embodiment are included in at least one embodiment of the present disclosure. Moreover, it should be noted that here an example using the wording “in an embodiment” does not necessarily refer to the same one embodiment.

The description provided herein describes many concrete details. However, it can be understood that the embodiments of the present disclosure may be implemented without those concrete details. In some of the embodiments, well-known processes, structures and techniques are not described in detail, so as not to affect the understanding of the description.

In the claims, any reference signs between parentheses should not be construed as limiting the claims. The word “comprise” does not exclude elements or steps that are not listed in the claims. The word “a” or “an” preceding an element does not exclude the existing of a plurality of such elements. The present disclosure may be implemented by means of hardware comprising several different elements and by means of a properly programmed computer. In unit claims that list several devices, some of those devices may be embodied by the same item of hardware. The words first, second, third and so on do not denote any order. Those words may be interpreted as names.

Finally, it should be noted that the above embodiments are merely intended to explain the technical solutions of the present disclosure, and not to limit them. Although the present disclosure is explained in detail with reference to the above embodiments, a person skilled in the art should understand that he can still modify the technical solutions set forth by the above embodiments, or make equivalent substitutions to part of the technical features of them. However, those modifications or substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present disclosure.