Oxygen source access device and medical equipment

Abstract

The utility model is applicable to the technical field of medical instruments, and provides an oxygen source access device and medical equipment. The oxygen source access device comprises a plurality of gas inlets, a plurality of first one-way valves, a main pipeline and a gas outlet, each gas inlet corresponds to at least one first one-way valve, and each first one-way valve comprises a first side close to the gas inlet and a second side close to the main pipeline; the first one-way valve allows gas to flow from the first side to the second side and prevents the gas from flowing from the second side to the first side; one end of the main pipeline communicates with the second sides of all the first one-way valves, and the other end communicates with the gas outlet; under the condition that at least part of the gas inlets are connected with an oxygen source, gas sequentially passes through the first side and the second side of the corresponding first one-way valve from the gas inlet connected with the oxygen source, enters the main pipeline and flows to the gas outlet; and the first one-way valve corresponding to the gas inlet which is not connected with the oxygen source blocks the gas from the main pipeline on the second side.

Description

Technical Field

[0001] The present application belongs to the field of medical device technology, and in particular, relates to an oxygen source access device and a medical device. Background Art

[0002] Medical equipment usually needs to be connected to an oxygen source to provide patients with a stable and long-lasting supply of oxygen.

[0003] In the related art, medical equipment usually needs to be connected to multiple oxygen sources. In the event of failure of one gas line, it can be replenished in real time through a backup pipeline. However, the increase in the number of oxygen sources leads to too many pipeline connections in the oxygen source access device, which is complex in structure, resulting in large space occupation and resistance to gas flow.

[0004] Based on this, how to design the oxygen source access device to reduce the occupied space and the resistance of gas flow has become an urgent problem to be solved. Utility Model Content

[0005] The present application provides an oxygen source access device and a medical device, aiming to solve the problem of how to design the oxygen source access device to reduce the occupied space and the resistance to gas flow.

[0006] The present application provides an oxygen source access device, comprising a plurality of gas inlets, a plurality of first one-way valves, a main pipeline and a gas outlet, each of the gas inlets corresponds to at least one of the first one-way valves, the first one-way valve comprises a first side and a second side, the first side is a side of the first one-way valve close to the gas inlet, and the second side is a side of the first one-way valve close to the main pipeline; the first one-way valve allows gas to flow from the first side to the second side, and prevents gas from flowing from the second side to the first side; one end of the main pipeline is connected to the second sides of all the first one-way valves, and the other end is connected to the gas outlet;

[0007] When at least part of the gas inlet is connected to the oxygen source, the gas passes through the first side and the second side of the corresponding first one-way valve in sequence from the gas inlet connected to the oxygen source, enters the main pipeline, and flows to the gas outlet. The first one-way valve corresponding to the gas inlet not connected to the oxygen source blocks the gas from the main pipeline at the second side.

[0008] Optionally, the oxygen source access device includes a filter, and the filter is located between the gas inlet and the first one-way valve.

[0009] Optionally, the oxygen source access device includes a first connecting member and a second connecting member, the first connecting member includes the first connecting part and the second connecting part, the first connecting part forms the gas outlet, the second connecting member includes a third connecting part and a fourth connecting part cooperating with the second connecting part, the third connecting part forms the gas inlet, and when the second connecting part is docked with the fourth connecting part, the main pipeline is connected.

[0010] Optionally, the second connecting member includes a fifth connecting portion, the oxygen source access device includes a third connecting member, the third connecting member includes a sixth connecting portion and a seventh connecting portion cooperating with the fifth connecting portion, the sixth connecting portion forms the gas inlet, and when the fifth connecting portion is docked with the seventh connecting portion, the second side of the first one-way valve corresponding to the second connecting member and the third connecting member is connected, and both are connected to the main pipeline.

[0011] Optionally, the direction of the gas inlet of the sixth connecting portion is the same as the direction of the gas inlet of the third connecting portion.

[0012] Optionally, the direction in which the gas flows out of the fifth connection portion is perpendicular to the direction in which the gas flows in the second connection member;

[0013] And / or, the direction in which the gas flows into the seventh connecting portion is perpendicular to the direction in which the gas flows in the third connecting member.

[0014] Optionally, the third connecting member includes an eighth connecting portion, the oxygen source access device includes a fourth connecting member, the fourth connecting member includes a ninth connecting portion and a tenth connecting portion cooperating with the eighth connecting portion, the ninth connecting portion forms the gas inlet, and when the eighth connecting portion is docked with the tenth connecting portion, the second side of the first one-way valve corresponding to the third connecting member and the fourth connecting member is connected, and both are connected to the main pipeline.

[0015] Optionally, the first connecting member includes a second one-way valve, which is located between the second connecting portion and the gas outlet, and the second one-way valve allows gas to flow from a side of the second one-way valve close to the second connecting portion to a side close to the gas outlet, and prevents gas from flowing from a side of the second one-way valve close to the gas outlet to a side close to the second connecting portion.

[0016] Optionally, the center points of the opening of the second connecting portion, the opening of the fourth connecting portion and the gas inlet formed by the first connecting portion are located on the same straight line.

[0017] The medical device provided in the present application includes any of the above-mentioned oxygen source access devices.

[0018] The oxygen source access device and medical equipment of the embodiment of the present application, because at least one first one-way valve is set between the main line and each gas inlet, the gas can flow from the gas inlet connected to the oxygen source through the first one-way valve to the main line and then reach the gas outlet, and the gas in the main line cannot flow through the first one-way valve to the gas inlet not connected to the oxygen source. In this way, in the event that the oxygen source of some gas inlets fails, it can be quickly switched to access the oxygen source using other gas inlets without worrying about the gas flowing out from the gas inlet that is not connected to the oxygen source. In addition, the oxygen source access device has a high degree of integration, and the structure and pipeline connection are relatively simple, which can reduce the occupied space and the resistance to gas flow, and is easy to install, test and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of an oxygen source access device according to an embodiment of the present application;

[0020] Figure 2 This is a schematic diagram of the structure of an oxygen source access device according to an embodiment of the present application;

[0021] Figure 3 This is a schematic diagram of the structure of an oxygen source access device according to an embodiment of the present application;

[0022] Figure 4 This is a schematic structural diagram of a third connector of an oxygen source access device according to an embodiment of the present application;

[0023] Description of main component symbols:

[0024] Oxygen source access device 100, gas inlet 101, filter 102, first one-way valve 103, main line 104, gas outlet 105, pressure gauge 106; first connecting piece 10, first connecting part 11, second connecting part 12, second one-way valve 13, pressure relief valve 14; second connecting piece 20, third connecting part 21, fourth connecting part 22, fifth connecting part 23; third connecting piece 30, sixth connecting part 31, seventh connecting part 32. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limiting the present application. In addition, it should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0026] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "left", "right", "horizontal", "top", "bottom", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed in itself. In addition, the various specific processes and examples of materials provided by the present application, but those of ordinary skill in the art can be aware of the application of other processes and / or the use scenarios of other materials.

[0031] In the present application, since at least one first one-way valve is provided between the main pipeline and each gas inlet, the gas can flow from the gas inlet connected to the oxygen source through the first one-way valve to the main pipeline and thus reach the gas outlet, and the gas in the main pipeline cannot flow through the first one-way valve to the gas inlet not connected to the oxygen source. In this way, in the event that the oxygen source of some gas inlets fails, it is possible to quickly switch and use other gas inlets to access the oxygen source without worrying about the gas flowing out from the gas inlet not connected to the oxygen source. Moreover, the oxygen source access device has a high degree of integration, and the structure and pipeline connection are relatively simple, which can reduce the occupied space and the resistance to gas flow, and is convenient for installation, testing and maintenance.

[0032] Embodiment 1

[0033] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The oxygen source access device 100 of the embodiment of the present application includes a plurality of gas inlets 101, a plurality of first one-way valves 103, a main pipeline 104 and a gas outlet 105. Each gas inlet 101 corresponds to at least one first one-way valve 103. The first one-way valve 103 includes a first side and a second side. The first side is a side of the first one-way valve 103 close to the gas inlet 101, and the second side is a side of the first one-way valve 103 close to the main pipeline 104. The first one-way valve 103 allows gas to flow from the first side to the second side, and prevents gas from flowing from the second side to the first side. One end of the main pipeline 104 is connected to the second sides of all the first one-way valves 103, and the other end is connected to the gas outlet 105.

[0034] When at least part of the gas inlet 101 is connected to the oxygen source, the gas passes through the first side and the second side of the corresponding first one-way valve 103 from the gas inlet 101 connected to the oxygen source in sequence, enters the main line 104, and flows to the gas outlet 105. The first one-way valve 103 corresponding to the gas inlet 101 not connected to the oxygen source blocks the gas from the main line 104 on the second side.

[0035] The oxygen source access device 100 of the embodiment of the present application, since at least one first one-way valve 103 is provided between the main line 104 and each gas inlet 101, the gas can flow from the gas inlet 101 connected to the oxygen source through the first one-way valve 103 to the main line 104 and thus reach the gas outlet 105, and the gas in the main line 104 cannot flow to the gas inlet 101 not connected to the oxygen source through the first one-way valve 103. In this way, in the case that the oxygen source of some gas inlets 101 fails, it can be quickly switched to use other gas inlets 101 to access the oxygen source without worrying about the gas flowing out of the gas inlet 101 not connected to the oxygen source. Moreover, the oxygen source access device 100 has a high degree of integration, and the structure and pipeline connection are relatively simple, which can reduce the occupied space and the resistance of gas flow, and is convenient for installation, testing and maintenance.

[0036] In this embodiment, the number of the gas inlets 101 is 2. It is understood that in other embodiments, the number of the gas inlets 101 may be 3, 4, 5 or other numbers.

[0037] In this embodiment, each gas inlet 101 corresponds to one first one-way valve 103. It is understood that in other embodiments, each gas inlet 101 corresponds to 2, 3, 4 or other numbers of first one-way valves 103.

[0038] It can be understood that the first one-way valve 103 allows gas to flow from the first side to the second side, and prevents gas from flowing from the second side to the first side, so that when the gas passes through the first one-way valve 103, it can only flow from the side of the first one-way valve 103 close to the gas inlet 101 to the side of the first one-way valve 103 close to the main line 104, and cannot flow from the side of the first one-way valve 103 close to the main line 104 to the side of the first one-way valve 103 close to the gas inlet 101. In this way, the one-way flow of gas in the first one-way valve 103 can be achieved, and gas leakage caused by reverse flow of gas can be prevented.

[0039] Specifically, one end of the main line 104 is connected to the second sides of all the first one-way valves 103, and the other end is connected to the gas outlet 105. In this way, the second sides of all the first one-way valves 103 are gathered in the main line 104, and can flow out of the oxygen source access device 100 from the gas outlet 105.

[0040] In this embodiment, the number of gas inlets 101 is two. When one gas inlet 101 is connected to an oxygen source, the gas passes through the first side and the second side of the corresponding first one-way valve 103 from the gas inlet 101 connected to the oxygen source in sequence, enters the main line 104, and flows to the gas outlet 105. The remaining gas inlet 101 is not connected to the oxygen source, and the corresponding first one-way valve 103 blocks the gas from the main line 104 on the second side.

[0041] It can be understood that in other embodiments, the number of gas inlets 101 may be 3. When one gas inlet 101 is connected to an oxygen source, the gas passes through the first side and the second side of the corresponding first one-way valve 103 from the one gas inlet 101 connected to the oxygen source in sequence, enters the main line 104, and flows to the gas outlet 105. The remaining two gas inlets 101 are not connected to the oxygen source, and the corresponding first one-way valve 103 blocks the gas from the main line 104 on the second side. When two gas inlets 101 are connected to an oxygen source, the gas passes through the first side and the second side of the corresponding first one-way valve 103 from the two gas inlets 101 connected to the oxygen source in sequence, enters the main line 104, and flows to the gas outlet 105. The remaining one gas inlet 101 is not connected to the oxygen source, and the corresponding first one-way valve 103 blocks the gas from the main line 104 on the second side.

[0042] It can be understood that in other embodiments, the number of gas inlets 101 may be 4. When two gas inlets 101 are connected to an oxygen source, the gas passes through the first side and the second side of the corresponding first one-way valve 103 from the two gas inlets 101 connected to the oxygen source in sequence, enters the main line 104, and flows to the gas outlet 105. The remaining two gas inlets 101 are not connected to the oxygen source, and the corresponding first one-way valve 103 blocks the gas from the main line 104 on the second side. When three gas inlets 101 are connected to an oxygen source, the gas passes through the first side and the second side of the corresponding first one-way valve 103 from the three gas inlets 101 connected to the oxygen source in sequence, enters the main line 104, and flows to the gas outlet 105. The remaining one gas inlet 101 is not connected to the oxygen source, and the corresponding first one-way valve 103 blocks the gas from the main line 104 on the second side.

[0043] Please note that the above is only an example and does not limit the total number of gas inlets 101 and the number of gas inlets 101 connected to the oxygen source.

[0044] In this embodiment, the number of the gas outlets 105 is 3. It is understood that in other embodiments, the number of the gas outlets 105 may be 1, 2, 4, 5 or other numbers.

[0045] Specifically, the oxygen source access device 100 includes a pressure gauge 106 , which can measure the air pressure at at least one of the second connecting piece 20 , the third connecting piece 30 and the main line 104 .

[0046] Specifically, the oxygen source access device 100 may further include a pressure relief valve 14, which can be automatically opened and closed according to the pressure in the pipeline. In this way, the pressure relief valve 14 can be used to improve the safety of gas flow in the oxygen source access device 100.

[0047] Embodiment 2

[0048] See also Figure 2 , Figure 3 and Figure 4 In some optional embodiments, the oxygen source access device 100 includes a filter 102 , and the filter 102 is located between the gas inlet 101 and the first one-way valve 103 .

[0049] In this way, the filter 102 can be used to filter the gas entering from the gas inlet 101 to prevent the gas from containing impurities and clogging the first one-way valve 103, thereby hindering the normal operation of the first one-way valve 103, which is beneficial to extending the service life of the oxygen source access device 100 and improving the reliability of the oxygen source access device 100.

[0050] In this embodiment, the number of the filter screen 102 is one. In this way, the resistance to gas flow is reduced while ensuring the filtering effect. It can be understood that in other embodiments, the number of the filter screen 102 can also be multiple.

[0051] Specifically, the filter screen 102 is detachably disposed in the oxygen source access device 100. In this way, the filter screen 102 can be easily replaced or repaired.

[0052] Embodiment 3

[0053] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 In some optional embodiments, the oxygen source access device 100 includes a first connecting member 10 and a second connecting member 20, the first connecting member 10 includes a first connecting portion 11 and a second connecting portion 12, the first connecting portion 11 forms a gas outlet 105, the second connecting member 20 includes a third connecting portion 21 and a fourth connecting portion 22 cooperating with the second connecting portion 12, the third connecting portion 21 forms a gas inlet 101, and when the second connecting portion 12 is connected to the fourth connecting portion 22, the main line 104 is connected.

[0054] In this way, the gas inlet 101 and the gas outlet 105 are respectively formed on the first connecting member 10 and the second connecting member 20, and the first connecting member 10 and the second connecting member 20 are connected by the cooperation of the second connecting portion 12 and the fourth connecting portion 22. The gas outlet 105 and the gas inlet 101 can be repaired and replaced through the first connecting member 10 and the second connecting member 20, respectively, which is beneficial to improving the service life and reliability of the oxygen source access device 100.

[0055] Specifically, there may be a plurality of gas outlets 105 , which are respectively formed on a plurality of surfaces of the first connecting portion 11 . In this way, the risk of interference between the gas outlets 105 can be reduced.

[0056] Specifically, the second connection part 12 and the fourth connection part 22 can be connected by threaded connection, snap connection, magnetic connection, bonding, riveting or other methods. The specific connection method between the second connection part 12 and the fourth connection part 22 is not limited here.

[0057] Specifically, the gas inlet 101 may be formed at an end of the third connecting portion 21 facing away from the first connecting member 10 .

[0058] Embodiment 4

[0059] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 In some optional embodiments, the second connecting member 20 includes a fifth connecting portion 23, the oxygen source access device 100 includes a third connecting member 30, the third connecting member 30 includes a sixth connecting portion 31 and a seventh connecting portion 32 that cooperates with the fifth connecting portion 23, the sixth connecting portion 31 forms a gas inlet 101, and when the fifth connecting portion 23 is connected to the seventh connecting portion 32, the second connecting member 20 and the third connecting member 30 corresponding to the first one-way valve 103 are connected at the second side, and are both connected to the main line 104.

[0060] In this way, the third connector 30 can be connected to the second connector 20 through the fifth connector 23 and the seventh connector 32 that cooperate with each other, so as to realize multiple gas inlets 101 of the oxygen source access device 100, and the oxygen source can be connected from the gas inlets 101 of the second connector 20 and the third connector 30. In addition, since the second side of the first one-way valve 103 corresponding to the second connector 20 and the third connector 30 is connected and connected to the main line 104, the gas in the main line 104 cannot flow back from the second side of the first one-way valve 103 to the first side, and cannot flow out from the gas inlet 101.

[0061] Specifically, the fifth connection portion 23 and the seventh connection portion 32 may be connected by threaded connection, snap connection, magnetic connection, bonding, riveting or other methods. The specific connection method of the fifth connection portion 23 and the seventh connection portion 32 is not limited here.

[0062] Embodiment 5

[0063] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 In some optional embodiments, the direction of the gas inlet 101 of the sixth connecting portion 31 is the same as the direction of the gas inlet 101 of the third connecting portion 21 .

[0064] In this way, the oxygen sources of the sixth connection part 31 and the third connection part 21 can be placed on the same side, which facilitates the placement of the oxygen sources.

[0065] It can be understood that in other embodiments, the orientation of the gas inlet 101 of the sixth connection portion 31 and the orientation of the gas inlet 101 of the third connection portion 21 may also be different.

[0066] Embodiment 6

[0067] See also Figure 1 , Figure 3 and Figure 4 In some optional embodiments, the direction in which the gas flows out of the fifth connecting portion 23 is perpendicular to the direction in which the gas flows in the second connecting member 20 .

[0068] In this way, the gas flowing out of the fifth connection portion 23 merges into the gas flow of the second connection member 20 in a vertical direction, so that the direction of gas flow is more regular and the pipeline connection is clearer.

[0069] It is understandable that in other embodiments, the direction in which the gas flows out of the fifth connection portion 23 may form an acute angle or an obtuse angle with the flow direction of the gas in the second connection member 20 .

[0070] In some optional embodiments, the direction in which the gas flows into the seventh connection portion 32 is perpendicular to the direction in which the gas flows in the third connection member 30 .

[0071] In this way, the airflow of the third connecting member 30 enters the seventh connecting portion 32 in a vertical direction, so that the direction of the gas flow is more regular and the pipeline connection is clearer.

[0072] It is understandable that in other embodiments, the direction in which the gas flows into the seventh connection portion 32 may form an acute angle or an obtuse angle with the direction in which the gas flows in the third connection member 30 .

[0073] Embodiment 7

[0074] In some optional embodiments, the third connecting member 30 includes an eighth connecting portion (not shown), the oxygen source access device 100 includes a fourth connecting member (not shown), the fourth connecting member includes a ninth connecting portion and a tenth connecting portion cooperating with the eighth connecting portion, the ninth connecting portion forms a gas inlet 101, and when the eighth connecting portion is docked with the tenth connecting portion, the third connecting member 30 and the second side of the first one-way valve 103 corresponding to the fourth connecting member are connected, and both are connected to the main line 104.

[0075] In this way, the fourth connector can be connected to the third connector 30 through the eighth connector and the tenth connector that cooperate with each other, so as to realize multiple gas inlets 101 of the oxygen source access device 100, and the oxygen source can be connected from the gas inlets 101 of the second connector 20, the third connector 30 and the fourth connector respectively. In addition, since the second side of the first one-way valve 103 corresponding to the third connector and the fourth connector is connected and connected to the main line 104, the gas in the main line 104 cannot flow back from the second side of the first one-way valve 103 to the first side, and cannot flow out from the gas inlet 101.

[0076] Specifically, the eighth connection portion and the tenth connection portion may be connected by threaded connection, snap connection, magnetic connection, bonding, riveting or other methods. The specific connection method of the eighth connection portion and the tenth connection portion is not limited here.

[0077] Specifically, the direction of the gas inlet 101 of the ninth connecting portion is the same as the direction of the gas inlet 101 of the third connecting portion 21 .

[0078] In this way, the oxygen sources of the ninth connection part and the third connection part 21 can be placed on the same side, which is convenient for placing the oxygen sources.

[0079] It can be understood that in other embodiments, the orientation of the gas inlet 101 of the ninth connecting portion and the orientation of the gas inlet 101 of the third connecting portion 21 may also be different.

[0080] Embodiment 8

[0081] See also Figure 2 and Figure 3 In some optional embodiments, the first connecting member 10 includes a second one-way valve 13, which is located between the second connecting portion 12 and the gas outlet 105. The second one-way valve 13 allows gas to flow from the side of the second one-way valve 13 close to the second connecting portion 12 to the side close to the gas outlet 105, and prevents gas from flowing from the side of the second one-way valve 13 close to the gas outlet 105 to the side close to the second connecting portion 12.

[0082] In this way, the second one-way valve 13 is used to allow gas to flow from the second connection part 12 to the first connection part 11 having the gas outlet 105, and to prevent gas from flowing from the first connection part 11 having the gas outlet 105 to the second connection part 12, thereby preventing gas from flowing in the reverse direction and being lost.

[0083] In this embodiment, the number of the second one-way valve 13 is 1. It can be understood that in other embodiments, the number of the second one-way valve 13 can be 2, 3, 4, 5 or other numbers.

[0084] Specifically, the second one-way valve 13 is detachably disposed in the first connecting member 10. In this way, the second one-way valve 13 can be easily replaced or repaired.

[0085] Embodiment 9

[0086] See also Figure 3 In some optional embodiments, the center points of the opening of the second connection part 12, the opening of the fourth connection part 22 and the gas inlet 101 formed by the first connection part 11 are located on the same straight line.

[0087] In this way, the flow path of the gas at the gas inlet 101, the opening of the fourth connection part 22 and the opening of the second connection part 12 is made straight, so that the flow path is shortened as much as possible and the resistance of the gas flow is reduced.

[0088] It can be understood that in other embodiments, the center points of the opening of the second connection portion 12 , the opening of the fourth connection portion 22 , and the gas inlet 101 formed by the first connection portion 11 may not be located on the same straight line.

[0089] Specifically, the center points of the gas outlet 105, the opening of the second connection part 12, the opening of the fourth connection part 22, and the gas inlet 101 formed by the first connection part 11 are located in the same straight line. In this way, the flow path of the gas in the gas inlet 101, the opening of the fourth connection part 22, the opening of the second connection part 12, and the gas outlet 105 is a straight line, which shortens the flow path as much as possible and reduces the resistance of the gas flow.

[0090] Embodiment 10

[0091] The medical device of the embodiment of the present application includes the oxygen source access device 100 of any one of Embodiments 1 to 9.

[0092] In the medical device of the embodiment of the present application, since at least one first one-way valve 103 is provided between the main line 104 and each gas inlet 101, the gas can flow from the gas inlet 101 connected to the oxygen source through the first one-way valve 103 to the main line 104 and then reach the gas outlet 105, and the gas in the main line 104 cannot flow through the first one-way valve 103 to the gas inlet 101 not connected to the oxygen source. In this way, in the case that the oxygen source of some gas inlets 101 fails, it can be quickly switched to use other gas inlets 101 to connect to the oxygen source without worrying about the gas flowing out of the gas inlet 101 not connected to the oxygen source. Moreover, the oxygen source access device 100 has a high degree of integration, and the structure and pipeline connection are relatively simple, which can reduce the occupied space and the resistance of gas flow, and is convenient for installation, testing and maintenance.

[0093] Specifically, the medical equipment includes anesthesia machines, ventilators, etc. The specific form of the medical equipment is not limited here.

[0094] In the description of this specification, the description with reference to the terms "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0095] In addition, the above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An oxygen source access device, characterized in that: The invention comprises a plurality of gas inlets, a plurality of first one-way valves, a main pipeline and a gas outlet, each of the gas inlets corresponds to at least one of the first one-way valves, the first one-way valve comprises a first side and a second side, the first side is a side of the first one-way valve close to the gas inlet, and the second side is a side of the first one-way valve close to the main pipeline; the first one-way valve allows gas to flow from the first side to the second side, and prevents gas from flowing from the second side to the first side; one end of the main pipeline is connected to the second sides of all the first one-way valves, and the other end is connected to the gas outlet; When at least part of the gas inlet is connected to the oxygen source, the gas passes through the first side and the second side of the corresponding first one-way valve in sequence from the gas inlet connected to the oxygen source, enters the main pipeline, and flows to the gas outlet. The first one-way valve corresponding to the gas inlet not connected to the oxygen source blocks the gas from the main pipeline at the second side.

2. The oxygen source access device according to claim 1, characterized in that: The oxygen source access device comprises a filter screen, and the filter screen is located between the gas inlet and the first one-way valve.

3. The oxygen source access device according to claim 1, characterized in that: The oxygen source access device includes a first connector and a second connector, the first connector includes a first connecting portion and a second connecting portion, the first connecting portion forms the gas outlet, the second connector includes a third connecting portion and a fourth connecting portion cooperating with the second connecting portion, the third connecting portion forms the gas inlet, and when the second connecting portion is docked with the fourth connecting portion, the main pipeline is connected.

4. The oxygen source access device according to claim 3, characterized in that: The second connecting piece includes a fifth connecting portion, the oxygen source access device includes a third connecting piece, the third connecting piece includes a sixth connecting portion and a seventh connecting portion cooperating with the fifth connecting portion, the sixth connecting portion forms the gas inlet, and when the fifth connecting portion is docked with the seventh connecting portion, the second side of the first one-way valve corresponding to the second connecting piece and the third connecting piece is communicated, and both are connected to the main pipeline.

5. The oxygen source access device according to claim 4, characterized in that: The direction of the gas inlet of the sixth connection portion is the same as the direction of the gas inlet of the third connection portion.

6. The oxygen source access device according to claim 4, characterized in that: The direction in which the gas flows out of the fifth connecting portion is perpendicular to the direction in which the gas flows in the second connecting member; And / or, the direction in which the gas flows into the seventh connecting portion is perpendicular to the direction in which the gas flows in the third connecting member.

7. The oxygen source access device according to claim 4, characterized in that: The third connecting member includes an eighth connecting portion, the oxygen source access device includes a fourth connecting member, the fourth connecting member includes a ninth connecting portion and a tenth connecting portion cooperating with the eighth connecting portion, the ninth connecting portion forms the gas inlet, and when the eighth connecting portion is docked with the tenth connecting portion, the second side of the first one-way valve corresponding to the third connecting member and the fourth connecting member is connected, and both are connected to the main pipeline.

8. The oxygen source access device according to claim 3, characterized in that: The first connecting member includes a second one-way valve, which is located between the second connecting portion and the gas outlet. The second one-way valve allows gas to flow from a side of the second one-way valve close to the second connecting portion to a side close to the gas outlet, and prevents gas from flowing from a side of the second one-way valve close to the gas outlet to a side close to the second connecting portion.

9. The oxygen source access device according to claim 3, characterized in that: The center points of the opening of the second connection part, the opening of the fourth connection part, and the gas inlet formed by the first connection part are located on the same straight line.

10. A medical device, characterized in that: The invention comprises the oxygen source access device according to any one of claims 1 to 9.

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