Respiration assisting system

Abstract

The breathing assisting system comprises a main machine and a plurality of sets of air path assemblies. One set of gas circuit assembly is used by one patient; the gas circuit assembly comprises a gas circuit connecting piece, a humidifying device, an output pipeline and a patient connector. The main machine is communicated with the humidifying device through the air channel connecting piece. The air channel connecting piece is arranged between the main machine and the humidifying device, the air channel connecting piece is provided with the first blocking structure to prevent air exhaled by a patient from flowing back to the main machine, the air exhaled by the patient can only reach the first blocking structure at most, and due to the fact that one air channel connecting piece is used by one patient, the air channel connecting piece is convenient to use. Therefore, cross infection is avoided when different patients use the same host.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a breathing assistance system. Background Art

[0002] Existing respiratory therapy equipment, such as oxygen therapy devices, generally have structures such as Figure 1 As shown, the main components include, from left to right, a host 1, a water tank 2, a heating pipeline 3, and patient connection accessories 4 (such as a mask, a nasal catheter), etc.

[0003] Under normal use, gas is delivered from the host 1 to the patient, but the gas exhaled by the patient may also flow back to the host end, thereby contaminating the host 1.

[0004] Respiratory therapy equipment is generally used by multiple people. After use, it needs to be disinfected. If the disinfection is not thorough, it will cause cross infection. In order to avoid such infection, disposable accessories or consumables are generally used. For example, the water tank 2, the heating pipe 3 and the patient connection accessories 4 are disposable. However, since the host 1 is shared, there is a blind spot for disinfection in the design. After the patient uses it, although there is a cut-off structure 11 (anti-reverse device, such as a one-way valve) in the air outlet channel 10 of the host, the disposable accessories or consumables are thrown away, but the cut-off structure 11 has a blind spot connection with the disposable accessories or consumables. Figure 1 As shown in the rectangular box a, there is a dead corner for disinfection, and there is a risk of cross infection when the next patient uses it. Summary of the invention

[0005] The present invention mainly provides a respiratory assistance system, aiming to reduce the risk of cross infection when using respiratory therapy equipment.

[0006] One embodiment provides a respiratory assistance system, including a host and multiple sets of gas circuit components; one set of gas circuit components is used for one patient; the gas circuit components include: a gas circuit connector, a humidification device, an output pipeline and a patient interface;

[0007] The host comprises a gas outlet, and the gas outlet is used to output a first gas for breathing assistance;

[0008] The gas circuit connector comprises a first connector air inlet interface, a second connector air inlet interface, a first blocking structure, a first connector air outlet interface, and a second connector air outlet interface;

[0009] The humidifying device comprises a humidifying device air inlet interface and a humidifying device air outlet interface;

[0010] The air inlet interface of the first connector is used to be detachably connected to the air outlet of the host, and the air outlet interface of the first connector is used to be detachably connected to the air inlet interface of the humidifying device of the humidifying device; the air inlet interface of the first connector is connected to the air outlet interface of the first connector to form a first air circuit; the air inlet interface of the second connector is used to be detachably connected to the air outlet interface of the humidifying device; the air outlet interface of the second connector is used to be detachably connected to one end of the output pipeline; the air inlet interface of the second connector is connected to the air outlet interface of the second connector to form a second air circuit, and the second air circuit is connected to the first air circuit through the humidifying device;

[0011] The first blocking structure is arranged in the first gas path, the first blocking structure allows the first gas entering the gas inlet interface of the first connector to pass through, and blocks the gas entering the gas outlet interface of the first connector; or, the first blocking structure is arranged in the second gas path, the first blocking structure allows the humidified first gas entering the gas inlet interface of the second connector to pass through, and blocks the gas entering the gas outlet interface of the second connector;

[0012] The humidifying device is used to humidify the first gas entering the air inlet interface of the humidifying device, and output the humidified first gas through the air outlet interface of the humidifying device;

[0013] The other end of the output pipeline is used to output the humidified first gas to the patient interface;

[0014] The patient interface comprises an inhalation channel, one end of which is connected to the output pipeline, and the other end of which is connected to the patient, for providing the humidified first gas to the patient when the patient inhales;

[0015] When in use, the patient interface forms an exhalation channel with the patient, or the patient interface has an exhalation channel; the exhalation channel is a channel for the patient's exhaled gas to be discharged to the outside.

[0016] One embodiment provides a respiratory assistance system, including a host and multiple sets of gas circuit components; one set of gas circuit components is used for one patient; the gas circuit components include: a gas circuit connector, a humidification device and an output pipeline;

[0017] The air circuit connector has a first connector air inlet interface, a first blocking structure and a first connector air outlet interface; the humidifying device includes a humidifying device air inlet interface and a humidifying device air outlet interface; the host includes an air outlet for outputting a first gas for breathing assistance; the first connector air inlet interface is used to be detachably connected to the air outlet of the host, and the first connector air outlet interface is used to be detachably connected to the humidifying device air inlet interface of the humidifying device; the first connector air inlet interface, the first blocking structure and the first connector air outlet interface are connected to form a first air circuit; the first blocking structure allows the first gas entering the first connector air inlet interface to pass through, and blocks the gas entering the first connector air outlet interface;

[0018] The humidifying device is used to humidify the first gas entering the air inlet interface of the humidifying device, and output the humidified first gas through the air outlet interface of the humidifying device;

[0019] The output pipeline is used to output the humidified first gas to the patient.

[0020] One embodiment provides a respiratory assistance system, including a host and multiple sets of gas circuit components; one set of gas circuit components is used for one patient; the gas circuit components include: a humidifying device, a gas circuit connector and an output pipeline;

[0021] The air circuit connector has a first connector air inlet interface, a first blocking structure and a first connector air outlet interface; the humidifying device includes a humidifying device air inlet interface and a humidifying device air outlet interface; the host includes an air outlet for outputting a first gas for breathing assistance; the humidifying device air inlet interface is used to be detachably connected to the air outlet of the host, the humidifying device air outlet interface is used to be detachably connected to the first connector air inlet interface of the air circuit connector, and the first connector air outlet interface of the air circuit connector is used to be connected to the output pipeline; the first blocking structure allows the first gas entering the first connector air inlet interface to pass through, and blocks the gas entering the first connector air outlet interface;

[0022] The humidifying device is used to humidify the first gas entering the air inlet interface of the humidifying device, and output the humidified first gas through the air outlet interface of the humidifying device;

[0023] The output pipeline is used to output the humidified first gas to the patient.

[0024] The respiratory assistance system according to the above embodiment includes a main unit and multiple sets of gas circuit components; one set of gas circuit components is used for one patient; the gas circuit components include: a gas circuit connector, a humidification device, an output pipeline and a patient interface. The main unit is connected to the humidification device through the gas circuit connector. The present invention sets an gas circuit connector between the main unit and the humidification device, and the gas circuit connector is provided with a first blocking structure to prevent the patient's exhaled gas from flowing back to the main unit. The patient's exhaled gas can only reach the first blocking structure at most. Since one gas circuit connector is used for one patient, there will be no cross infection when different patients use the same main unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a gas circuit diagram of an existing oxygen therapy device;

[0026] Figure 2 A schematic diagram of a respiratory assistance system provided by the present invention;

[0027] Figure 3 A structural block diagram of an embodiment of a breathing assistance system provided by the present invention;

[0028] Figure 4 A structural block diagram of another embodiment of the breathing assistance system provided by the present invention;

[0029] Figure 5 A structural block diagram of a host computer embodiment of the respiratory assistance system provided by the present invention;

[0030] Figure 6 An axonometric diagram of an embodiment of a gas circuit connector in the breathing assistance system provided by the present invention;

[0031] Figure 7 A schematic diagram of the connection between the host, the gas circuit connector and the humidification device in the respiratory assistance system provided by the present invention;

[0032] Figure 8 An axonometric diagram of the main unit, the air circuit connector and the humidification device after docking in the respiratory assistance system provided by the present invention;

[0033] Fig. 9 A side view of the main unit, the air circuit connector and the humidification device after docking in the respiratory assistance system provided by the present invention;

[0034] Fig.10 A cross-sectional view of the main unit, the gas circuit connector and the humidification device after docking in the respiratory assistance system provided by the present invention;

[0035] Fig.11 A schematic diagram of another embodiment of an air circuit connector in the breathing assistance system provided by the present invention;

[0036] Fig.12This is a structural block diagram of another embodiment of the breathing assistance system provided by the present invention. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are for making the present application better understood. However, those skilled in the art can easily recognize that some features can be omitted in different situations, or can be replaced by other elements, materials, methods. In some cases, some operations related to the present application are not shown or described in the specification, this is to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations according to the description in the specification and the general technical knowledge in the art.

[0038] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0039] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0040] In view of the problems of dead corners in the disinfection of existing respiratory therapy equipment, the present invention provides a respiratory assistance system, which is more convenient for doctors or users to use than the existing technology, and does not cause cross infection, thereby ensuring the safety of patients. The present invention prevents the patient's virus from entering the host by setting a blocking structure in the respiratory assistance system, thereby avoiding the existence of dead corners in disinfection. The following is a detailed description through some embodiments.

[0041] like Figure 2 As shown, the respiratory assistance system provided by the present invention includes a host 10 and multiple sets of gas circuit components 20. One set of gas circuit components 20 is used for one patient. As shown in the figure, gas circuit component A is used for patient A, gas circuit component B is used for patient B, and gas circuit component C is used for patient C. Considering the convenience of disinfection, infection risk, etc., in this embodiment, the gas circuit component 20 is a disposable product and is used once.

[0042] like Figure 3 , Figure 4 and Fig.12 As shown, the gas circuit assembly 20 includes: a gas circuit connector 21, a humidification device 22, an output pipeline 23 and a patient interface 24.

[0043] The host 10 is used to provide a first gas. The first gas is used for breathing assistance and contains oxygen. Figure 5 As shown, the host 10 includes an oxygen branch 110 , an air branch 120 , a mixing branch 130 and an air outlet 140 .

[0044] The oxygen branch 110 is used to obtain oxygen and output it to the mixing branch 130. The oxygen branch 110 may have an oxygen interface for connecting to an external gas source (such as hospital pipeline gas or oxygen cylinder, etc.), and the oxygen branch 110 outputs the oxygen provided by the external gas source to the mixing branch 130. The oxygen branch 110 may also have an oxygen concentrator, and the oxygen produced by the oxygen concentrator is output to the mixing branch 130. The oxygen branch 110 may be provided with a valve to adjust the flow rate of oxygen.

[0045] The air branch 120 is used to obtain air and output it to the mixing branch 130. The air branch 120 may have an air interface for connecting to an external air source (such as hospital pipeline gas or air cylinder, etc.), and the air branch 120 outputs the air provided by the external air source to the mixing branch 130. The air branch 120 may also be provided with a turbine, which is used to obtain air from the outside, compress the air and output it to the air branch 120. The air branch 120 may be provided with a valve to adjust the flow rate of the air.

[0046] One end of the mixing branch 130 is connected to at least the oxygen branch 110 and the air branch 120, and the other end is connected to the gas outlet 140 of the host 10. In this way, the first gas for breathing assistance includes oxygen provided by the oxygen branch 110 and air provided by the air branch 120. That is, the first gas can at least be an oxygen-air mixed gas.

[0047] The gas outlet 140 is used to output the first gas for breathing assistance.

[0048] The host 10 may be an oxygen therapy device, an anesthesia machine, or a ventilator, etc. The host 10 may also include more branches to provide more gases to mix with oxygen and air to obtain the first gas. For example, when the host 10 is an anesthesia machine, it may also include a laughing gas branch, which obtains laughing gas from the outside and outputs it to the mixing branch 130.

[0049] There are many possible connection relationships between the host 10 and the components in the gas circuit assembly 20. Figure 3 , Figure 4 and Fig.12 The three types shown are used as examples for explanation.

[0050] exist Figure 3 In the embodiment shown, Figure 6 As shown, the gas circuit connector 21 has a first connector air inlet interface 211 , a second connector air inlet interface 212 , a first blocking structure, a first connector air outlet interface 213 and a second connector air outlet interface 214 .

[0051] like Figure 8 As shown, the humidifying device 22 includes a humidifying device air inlet interface 221 and a humidifying device air outlet interface 222. The humidifying device 22 is used to humidify the first gas entering through the humidifying device air inlet interface 221 and output the humidified first gas through the humidifying device air outlet interface 222.

[0052] See also Figure 6-10 The first connector air inlet interface 211 is used to be detachably connected to the air outlet 140 of the host 10. For example, in this embodiment, the first connector air inlet interface 211 is pluggably connected to the air outlet 140 of the host 10, which is very convenient. The first connector air outlet interface 213 is used to be detachably connected to the humidifying device air inlet interface 221 of the humidifying device 22. Similarly, in this embodiment, the first connector air outlet interface 213 is pluggably connected to the humidifying device air inlet interface 221. The first connector air inlet interface 211 and the first connector air outlet interface 213 are connected to form a first gas path. The flow direction of the first gas in the first gas path is as shown in FIG. Figure 6 As shown by the solid arrow.

[0053] The second connector air inlet interface 212 is used to be detachably connected to the humidifier device air outlet interface 222. Similarly, in this embodiment, the second connector air inlet interface 212 is pluggably connected to the humidifier device air outlet interface 222. The second connector air outlet interface 214 is used to be detachably connected to one end of the output pipeline 23. Similarly, in this embodiment, the second connector air outlet interface 214 is pluggably connected to the output pipeline 23. The second connector air inlet interface 212 and the second connector air outlet interface 214 are connected to form a second gas path. The flow direction of the first gas in the second gas path is as shown in FIG. Figure 6 As shown by the dotted arrow.

[0054] The second gas path is connected to the first gas path through the humidification device 22 , that is, the first gas enters the humidification device 22 after passing through the first gas path, and enters the second gas path after being humidified by the humidification device 22 .

[0055] The humidification device 22 further includes a water storage chamber 223, which is in communication with the humidification device air inlet interface 221 and the humidification device air outlet interface 222. The water stored in the water storage chamber 223 is used to humidify the first gas. The humidification device 22 may be, for example, a water tank.

[0056] The host 10 further includes a first heating device 150, which is used to heat the water storage chamber to facilitate water evaporation and adjust the temperature of the first gas.

[0057] The first blocking structure 215 can be set in the first gas path or in the second gas path, and can block the gas from flowing into the host 10. Specifically, in one embodiment, the first blocking structure 215 is set in the first gas path. The first blocking structure 215 allows the first gas entering the first connector inlet interface 211 to pass through, and blocks the gas entering the first connector outlet interface 213. That is, under the action of the first blocking structure 215, the gas in the first gas path can only be Figure 6 It flows in the direction of the solid arrow and cannot flow in the opposite direction.

[0058] In another embodiment, the first blocking structure 215 is disposed in the second gas path. The first blocking structure allows the humidified first gas entering the second connector inlet interface 212 to pass through, and blocks the gas entering the second connector outlet interface 214. That is, under the action of the first blocking structure 215, the gas in the second gas path can only be Figure 6 It flows in the direction of the dashed arrow and cannot flow in the opposite direction.

[0059] Of course, in some embodiments, the first blocking structure 215 can be provided in the first gas path and the second gas path, so that the gas can only be Figure 6 The air in the air path connector 21 can flow in the direction of the arrow in the figure and cannot flow in the opposite direction. By providing two blocking structures 215 in the two air paths of the air path connector 21, the air tightness manufacturing requirements of the first blocking structure 215 can be reduced while avoiding cross infection. The first blocking structure in the air path connector 21 can effectively prevent the patient's virus from entering the host and avoid the existence of a sterilization dead corner.

[0060] The other end of the output pipeline 23 is used to output the humidified first gas to the patient interface 24. The output pipeline 23 may be provided with a second heating device for heating the output pipeline 23. In this way, the humidified first gas can be heated, so that the patient feels comfortable when inhaling the first gas.

[0061] The patient interface 24 includes an inhalation channel, one end of which is connected to the other end of the output pipeline 23. The patient interface 24 and the output pipeline 23 can be an integrated structure or can be detachably connected. Taking the latter as an example, the patient interface 24 and the output pipeline 23 are pluggably connected. The other end of the inhalation channel is connected to the patient, and is used to provide the humidified first gas to the patient when the patient inhales. The patient interface 24 can be, for example, a nasal pillow, a nasal mask, or a facial mask.

[0062] In one embodiment, the patient interface 24 forms an exhalation channel with the patient when in use, and the exhalation channel is a channel for the patient's exhaled gas to be discharged to the outside. That is, the gas exchange between the patient interface 24 and the patient when in use is not airtight, but semi-open, and the patient's exhaled gas can be smoothly discharged to the outside, which is convenient for the user to exhale and relieve pressure. The patient interface 24 can, for example, adopt a nasal oxygen tube (nasal catheter), and the gap between it and the nostrils (exhalation channel) can be used for exhalation, and of course, it can also be exhaled through the mouth (exhalation channel). The patient interface 24 can also adopt a nasal mask, and the patient exhales through the mouth (exhalation channel).

[0063] In another embodiment, the patient interface 24 has an exhalation channel, such as an exhalation hole or the like. For example, the patient interface 24 adopts a mask with an exhalation hole (exhalation channel) on the mask, and the gas exhaled by the patient is discharged through the exhalation hole.

[0064] After the host 10 and the gas circuit assembly 20 are docked according to the above content and the method shown in the drawings, the host 10 can be turned on to provide the first gas to the patient (the flow direction of the first gas is as shown in FIG. Figure 3 Even if the gas exhaled by the patient flows in the reverse direction, it will be blocked by the first blocking structure 215 of the gas circuit connector 21. Since the gas circuit connector 21 is disposable, there will be no cross infection when other patients use the main unit later, thus ensuring the safety of the patient.

[0065] As described in the background technology, a one-way valve is usually set in the host in the prior art. Of course, some respiratory therapy devices take into account that the gas exhaled by the patient needs to be depressurized. The flow direction of the gas during depressurization is opposite to the flow direction of the gas when the one-way valve is opened. Therefore, the one-way valve and the pressure relief hole are linked. When the one-way valve is opened, the pressure relief hole is closed by linkage, and when the one-way valve is closed, the pressure relief hole is opened by linkage. Since the gas flowing out of the pressure relief hole during pressure relief may carry bacteria, the pressure relief hole will not be set in the host, so the one-way valve can only be moved out of the host and set between the host and the water tank. The linkage control of the one-way valve and the pressure relief hole has higher requirements for the one-way valve and the structure of the opening and closing of the linkage pressure relief hole. The respiratory assistance system provided by the present invention has an exhalation channel at the patient interface 24, and the gas flows out from the exhalation channel when the patient exhales, so there is no need for a pressure relief valve, and the structure is simple and reliable. It can be seen that the prior art either only sets a one-way valve in the host, resulting in the risk of cross infection, or sets the one-way valve outside the host to cooperate with the pressure relief hole, but the linkage structure of the one-way valve and the pressure relief hole is complex and the reliability is poor. The present invention solves the problem of pressure relief through the exhalation channel and sets a one-way valve in the disposable air circuit connector 21, thereby reducing the risk of cross infection. The structure is also simple and reliable, breaking the conventional thinking of those skilled in the art.

[0066] In this embodiment, a second blocking structure may also be provided in the mixing branch 130. The second blocking structure allows the first gas entering from the oxygen branch 110 and the air branch 120 to pass through, and blocks the gas entering from the gas outlet 140. In this way, when the host is not in use, the second blocking structure can prevent foreign objects such as small insects from entering.

[0067] The first blocking structure and the second blocking structure can both use one-way valves. When the one-way valve in the first gas path is opened, the first gas flows to Figure 6 As shown by the solid arrow, when there is airflow in the opposite direction, the one-way valve will automatically close, thereby preventing the patient's exhaled gas from entering the main unit. When the one-way valve in the second gas path is opened, the humidified first gas flows in the direction shown in FIG. Figure 6 As shown by the dotted arrow, when there is an airflow in the opposite direction, the one-way valve will automatically close, thereby preventing the patient's exhaled gas from entering the water tank. The opening direction of the one-way valve in the mixing branch 130 is the same as the flow direction of the first airflow, that is, the first airflow can drive the one-way valve to open, and the first gas flows to the air path connector. When there is no first airflow, the one-way valve automatically closes.

[0068] like Figure 6 As shown, the gas circuit connector 21 also includes a connector body 216, and the connector body 216 is built with a first pipeline (not shown in the figure) and a second pipeline (not shown in the figure). The first pipeline and the second pipeline are not connected in the connector body 216. The first connector air inlet interface 211 is connected to one end of the first pipeline, and the first connector air outlet interface 213 is connected to the other end of the first pipeline. It can be seen that the first connector air inlet interface 211, the first pipeline and the first connector air outlet interface 213 are connected to form a first gas circuit. The second connector air inlet interface 212 is connected to one end of the second pipeline, and the second connector air outlet interface 214 is connected to the other end of the second pipeline. The second connector air inlet interface 212, the second pipeline and the second connector air outlet interface 214 are connected to form a second gas circuit. A first blocking structure 215 can be set in the first pipeline and / or the second pipeline.

[0069] In some embodiments, the first connector air inlet interface 211, the first connector air outlet interface 213, the second connector air inlet interface 212, the second connector air outlet interface 214 and the connector body 216 may be separate and assembled to form the gas circuit connector 21. Of course, in other embodiments, these interfaces and the connector body 216 may also be integrated, that is, the gas circuit connector 21 is an integrated structure.

[0070] like Figure 6-10As shown, in this embodiment, the air outlet 140 of the host 10 is horizontally facing outward, so the first connector air inlet interface 211 of the air circuit connector 21 is arranged in the horizontal direction to facilitate the docking and fixing of the two. The air outlet 140 of the host 10 is usually a hard interface, and the first connector air inlet interface 211 adopts a soft interface. In this way, during the long-term use of the host 10, the air outlet 140 adopts a hard interface that is more resistant to wear, and the first connector air inlet interface 211 is a soft interface, and frequent plugging and unplugging of the two will hardly wear the air outlet 140. This arrangement prolongs the service life of the air outlet 140. The first connector air inlet interface 211 can specifically adopt a silicone interface, which is elastic and has good sealing properties in terms of plugging and unplugging. As shown Figure 6 As shown, the opposite side of the first connector air inlet interface 211 on the connector body 216 is a flat structure. The flat structure is wider, which is convenient for setting the second connector air inlet interface 212 and the first connector air outlet interface 213 below, and is also convenient for users to hold. The user holds the flat structure and pushes and pulls it toward the air outlet 140 to achieve the docking and separation between the first connector air inlet interface 211 and the air outlet 140.

[0071] The air inlet interface 221 and the air outlet interface 222 of the humidifying device 22 are usually arranged upward, so in this embodiment, the first connector air outlet interface 213 and the second connector air inlet interface 212 of the air circuit connector 21 are both arranged vertically downward. Usually, the air circuit connector 21 is first docked with the humidifying device 22, and then docked with the host 10 as a whole. If a soft connection is used between the air circuit connector 21 and the humidifying device 22, then after the air circuit connector 21 is connected to the humidifying device 22, it will be difficult to bear force when connected to the host, resulting in the air circuit connector 21 and the humidifying device 22 being easily loose or causing poor sealing. Therefore, in this embodiment, the first connector air outlet interface 213 of the air circuit connector 21 and the humidifying device air inlet interface 221 of the humidifying device are both hard interfaces; the second connector air inlet interface 212 of the air circuit connector 21 and the humidifying device air outlet interface 222 of the humidifying device are both hard interfaces. In this way, the air circuit connector 21 and the humidifying device 22 are connected by a hard interface, and the connection is firm. The two as a whole will not be loose when the air circuit connector 21 is connected to the host 10. The first connector outlet interface 213 of the air circuit connector can adopt a conical joint that meets the national standard to adapt to the humidifying device air inlet interface of various humidifying devices; the second connector air inlet interface 212 of the air circuit connector can also adopt a conical joint that meets the national standard to adapt to the humidifying device air outlet interface of various humidifying devices. The diameter of the conical joint can be 15mm or 22mm.

[0072] In this embodiment, the second connector outlet interface 214 of the gas circuit connector 21 is vertically arranged upwards to facilitate connection of the output pipeline. The interface type and / or interface size of the second connector outlet interface 214 of the gas circuit connector 21 can be different from other interfaces of the gas circuit connector 21, so as to prevent mistakes and avoid connecting the wrong interface.

[0073] exist Figure 4 In the embodiment shown, Fig.11 As shown, the structure of the gas circuit connector 21 is similar to Figure 3 The embodiment shown is different, resulting in differences in the connection relationship between the gas circuit connector 21, the humidification device 22 and the output pipeline 23. Figure 3 The embodiments shown are the same, and the different parts are described in detail below.

[0074] exist Figure 4 In the embodiment shown, the air circuit connector 21 has a first connector air inlet interface 211', a first blocking structure 215' and a first connector air outlet interface 213'. The first connector air inlet interface 211' is used to be detachably connected to the air outlet of the host, and the details are the same as the above embodiment, which will not be repeated here.

[0075] The first connector gas outlet interface 213' is used to be detachably connected to the humidifying device gas inlet interface 221 of the humidifying device. The first connector gas inlet interface 211', the first blocking structure 215' and the first connector gas outlet interface 213' are connected to form a first gas path. The first blocking structure 215' allows the first gas entering the first connector gas inlet interface 211' to pass through, and blocks the gas entering the first connector gas outlet interface 213'. The first blocking structure 215' can also use a one-way valve, which is the same as the above embodiment and will not be repeated here.

[0076] The humidifying device gas outlet interface 222 of the humidifying device 22 is used to be detachably connected to one end of the output pipeline 23. In this way, the first gas output by the host breaks through the first blocking structure 215' of the gas circuit connector and enters the humidifying device 22, and the first gas is directly output to the output pipeline 23 after being humidified, and then the output pipeline 23 outputs the humidified first gas to the patient through the patient interface 24. The connection relationship between the gas circuit connector 21 and the gas circuit assembly of this structure is simple in structure and can also reduce the risk of cross infection. The other parts of the host 10 and the gas circuit assembly 20 in this embodiment are the same as those in the above embodiment, and are not described in detail here.

[0077] exist Fig.12 In the embodiment shown, the gas circuit connector 21 is also as Fig.11 As shown, however, compared to Figure 4 The position of the gas connection member 21 is different, and the other aspects are the same as Figure 4The embodiments are the same, and the different parts are described in detail below.

[0078] exist Fig.12 In the illustrated embodiment, the gas circuit connector 21 has a first connector air inlet interface 211 ′, a first blocking structure 215 ′ and a first connector air outlet interface 213 ′.

[0079] The air inlet interface of the humidifying device is used to be detachably connected to the air outlet 140 of the main unit. The air outlet interface of the humidifying device is used to be detachably connected to the first connector air inlet interface 211' of the air circuit connector 21. The first connector air outlet interface 213' of the air circuit connector is used to be connected to one end of the output pipeline 23, such as a detachable connection. The first connector air inlet interface 211', the first blocking structure 215' and the first connector air outlet interface 213' are connected to form a first air circuit. The first blocking structure 215' allows the first gas entering the first connector air inlet interface 211' to pass through, and blocks the gas entering the first connector air outlet interface 213'. The first blocking structure 215' can also adopt a one-way valve, which is the same as the above embodiment and will not be repeated here.

[0080] The other end of the output pipeline 23 is used to output the humidified first gas to the patient interface 24 .

[0081] Fig.12 In the embodiment shown, the position of the gas circuit connector 21 in the entire gas circuit is different, and the other parts of the host 10 and the gas circuit assembly 20 are different. Figure 4 The embodiments shown are the same, so they will not be described in detail.

[0082] This document is described with reference to various exemplary embodiments. However, those skilled in the art will recognize that changes and modifications may be made to the exemplary embodiments without departing from the scope of this document. For example, various operating steps and components for performing the operating steps may be implemented in different ways (e.g., one or more steps may be deleted, modified, or incorporated into other steps) depending on the specific application or considering any number of cost functions associated with the operation of the system.

[0083] Although the principles of this invention have been shown in various embodiments, many modifications of structures, arrangements, proportions, elements, materials and components particularly suitable for specific environments and operational requirements can be used without departing from the principles and scope of this invention. The above modifications and other changes or amendments will be included in the scope of this invention.

[0084] The foregoing specific description has been described with reference to various embodiments. However, those skilled in the art will recognize that various modifications and changes can be made without departing from the scope of the present disclosure. Therefore, the consideration of the present disclosure will be illustrative rather than restrictive, and all these modifications will be included in its scope. Similarly, the advantages, other advantages and solutions to the problems of various embodiments have been described above. However, the benefits, advantages, solutions to the problems and any elements that can produce these, or make them more clear, should not be interpreted as critical, necessary or necessary. The term "include" and any other variants used in this article are all non-exclusive inclusions, so that the process, method, article or device including the list of elements not only includes these elements, but also includes other elements that are not explicitly listed or do not belong to the process, method, system, article or device. In addition, the term "coupled" and any other variants used in this article refer to physical connections, electrical connections, magnetic connections, optical connections, communication connections, functional connections and / or any other connections.

Claims

1. A breathing assistance system, characterized in that: It includes a main unit and multiple sets of gas circuit components; one set of gas circuit components is used for one patient; the gas circuit components include: gas circuit connector, humidification device, output pipeline and patient interface; The host comprises a gas outlet, and the gas outlet is used to output a first gas for breathing assistance; The gas circuit connector comprises a first connector air inlet interface, a second connector air inlet interface, a first blocking structure, a first connector air outlet interface, and a second connector air outlet interface; The humidifying device comprises a humidifying device air inlet interface and a humidifying device air outlet interface; The air inlet interface of the first connector is used to be detachably connected to the air outlet of the host, and the air outlet interface of the first connector is used to be detachably connected to the air inlet interface of the humidifying device of the humidifying device; the air inlet interface of the first connector is connected to the air outlet interface of the first connector to form a first air circuit; the air inlet interface of the second connector is used to be detachably connected to the air outlet interface of the humidifying device; the air outlet interface of the second connector is used to be detachably connected to one end of the output pipeline; the air inlet interface of the second connector is connected to the air outlet interface of the second connector to form a second air circuit, and the second air circuit is connected to the first air circuit through the humidifying device; The first blocking structure is arranged in the first gas path, the first blocking structure allows the first gas entering the gas inlet interface of the first connector to pass through, and blocks the gas entering the gas outlet interface of the first connector; or, the first blocking structure is arranged in the second gas path, the first blocking structure allows the humidified first gas entering the gas inlet interface of the second connector to pass through, and blocks the gas entering the gas outlet interface of the second connector; The humidifying device is used to humidify the first gas entering the air inlet interface of the humidifying device, and output the humidified first gas through the air outlet interface of the humidifying device; The other end of the output pipeline is used to output the humidified first gas to the patient interface; The patient interface comprises an inhalation channel, one end of which is connected to the output pipeline, and the other end of which is connected to the patient, for providing the humidified first gas to the patient when the patient inhales; When in use, the patient interface forms an exhalation channel with the patient, or the patient interface has an exhalation channel; the exhalation channel is a channel for the patient's exhaled gas to be discharged to the outside.

2. The breathing assistance system according to claim 1, characterized in that: The host also includes: An oxygen branch, used for obtaining oxygen and outputting it to a mixing branch; An air branch, used for acquiring air and outputting it to a mixing branch; A mixing branch, one end of which is connected to at least the oxygen branch and the air branch, and the other end of which is connected to the gas outlet of the host, wherein the first gas for respiratory assistance includes oxygen provided by the oxygen branch and air provided by the air branch.

3. The breathing assistance system according to claim 2, characterized in that: A second blocking structure is provided in the mixing branch; the second blocking structure allows the first gas entering from the oxygen branch and the air branch to pass through, and blocks the gas entering from the gas outlet.

4. The breathing assistance system according to claim 1, characterized in that: The humidification device also includes a water storage chamber, which is connected to the air inlet interface of the humidification device and the air outlet interface of the humidification device; the host also includes a first heating device, which is used to heat the water storage chamber.

5. The breathing assistance system according to claim 1, characterized in that: The first connector air inlet interface of the gas circuit connector is arranged in the horizontal direction, the first connector air outlet interface and the second connector air inlet interface of the gas circuit connector are arranged vertically downward, and the second connector air outlet interface of the gas circuit connector is arranged vertically upward.

6. The breathing assistance system according to claim 1 or 5, characterized in that: The air path connector also includes a connector body, in which a first pipe and a second pipe are built-in, and the first pipe and the second pipe are not connected in the connector body; the first connector air inlet interface is connected to one end of the first pipe, and the first connector air outlet interface is connected to the other end of the first pipe, and the first connector air inlet interface, the first pipe and the first connector air outlet interface are connected to form a first air path; the second connector air inlet interface is connected to one end of the second pipe, and the second connector air outlet interface is connected to the other end of the second pipe, and the second connector air inlet interface, the second pipe and the second connector air outlet interface are connected to form a second air path; the first blocking structure is arranged in the first pipe or in the second pipe.

7. The breathing assistance system according to claim 1, characterized in that: The interface type and / or interface size of the air outlet interface of the second connector of the air circuit connector are different from those of other interfaces of the air circuit connector.

8. The breathing assistance system according to claim 1, characterized in that: The output pipeline is provided with a second heating device for heating the output pipeline.

9. The breathing assistance system according to claim 1, characterized in that: The air outlet of the host is a hard interface, the air inlet interface of the first connector is a soft interface, and the air inlet interface of the first connector is a silicone interface.

10. The breathing assistance system according to claim 1, characterized in that: The first connector air outlet interface of the air circuit connector and the humidifier air inlet interface of the humidifier device are both hard interfaces; the second connector air inlet interface of the air circuit connector and the humidifier air outlet interface of the humidifier device are both hard interfaces; the first connector air outlet interface of the air circuit connector is a conical joint that complies with national standards to adapt to the humidifier air inlet interfaces of a variety of humidifier devices; the diameter of the conical joint is 15mm or 22mm.

11. The breathing assistance system according to claim 1, characterized in that: The first blocking structure is a one-way valve.

12. The breathing assistance system according to claim 2, characterized in that: The air branch is provided with a turbine, and the turbine is used to obtain air from the outside and output the air to the air branch after compressing the air.

13. The breathing assistance system according to claim 1, characterized in that: The host is an oxygen therapy device, anesthesia machine or a ventilator.

14. A breathing assistance system, characterized in that: It includes a main unit and multiple sets of gas circuit components; one set of gas circuit components is used for one patient; the gas circuit components include: gas circuit connectors, humidification devices and output pipelines; The air circuit connector has a first connector air inlet interface, a first blocking structure and a first connector air outlet interface; the humidifying device includes a humidifying device air inlet interface and a humidifying device air outlet interface; the host includes an air outlet for outputting a first gas for breathing assistance; the first connector air inlet interface is used to be detachably connected to the air outlet of the host, and the first connector air outlet interface is used to be detachably connected to the humidifying device air inlet interface of the humidifying device; the first connector air inlet interface, the first blocking structure and the first connector air outlet interface are connected to form a first air circuit; the first blocking structure allows the first gas entering the first connector air inlet interface to pass through, and blocks the gas entering the first connector air outlet interface; The humidifying device is used to humidify the first gas entering the air inlet interface of the humidifying device, and output the humidified first gas through the air outlet interface of the humidifying device; The output pipeline is used to output the humidified first gas to the patient.

15. A breathing assistance system, characterized in that: It includes a host and multiple sets of gas circuit components; one set of gas circuit components is used for one patient; the gas circuit components include: a humidifying device, a gas circuit connector and an output pipeline; The air circuit connector has a first connector air inlet interface, a first blocking structure and a first connector air outlet interface; the humidifying device includes a humidifying device air inlet interface and a humidifying device air outlet interface; the host includes an air outlet for outputting a first gas for breathing assistance; the humidifying device air inlet interface is used to be detachably connected to the air outlet of the host, the humidifying device air outlet interface is used to be detachably connected to the first connector air inlet interface of the air circuit connector, and the first connector air outlet interface of the air circuit connector is used to be connected to the output pipeline; the first blocking structure allows the first gas entering the first connector air inlet interface to pass through, and blocks the gas entering the first connector air outlet interface; The humidifying device is used to humidify the first gas entering the air inlet interface of the humidifying device, and output the humidified first gas through the air outlet interface of the humidifying device; The output pipeline is used to output the humidified first gas to the patient.

16. The breathing assistance system according to claim 14 or 15, characterized in that: The host also includes: An oxygen branch, used for obtaining oxygen and outputting it to a mixing branch; An air branch, used for acquiring air and outputting it to a mixing branch; A mixing branch, one end of which is connected to at least the oxygen branch and the air branch, and the other end of which is connected to the gas outlet of the host, wherein the first gas for breathing assistance includes oxygen provided by the oxygen branch and air provided by the air branch; A second blocking structure is provided in the mixing branch, and the second blocking structure allows the first gas entering from the oxygen branch and the air branch to pass through, and blocks the gas entering from the gas outlet.

17. The breathing assistance system according to claim 16, characterized in that: The first blocking structure and the second blocking structure are both one-way valves.

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