Air path switching device, breathing machine equipment and medical system

Abstract

The utility model is applicable to the technical field of medical equipment, and provides a gas path switching device, breathing machine equipment and a medical system.The gas path switching device comprises a compressor, a gas path switching device and a gas path switching device, the base is provided with an air channel and a mounting hole, and the mounting hole is communicated with the air channel; the inlet end of the air passage is communicated with an air source, and the outlet end of the air passage is communicated with air supply equipment; the one-way valve is arranged in the air channel; the one-way valve is used for conducting the inlet end of the air channel to the outlet end of the air channel and stopping the outlet end of the air channel from the inlet end of the air channel. The pressure detection piece is mounted in the mounting hole and is arranged between the one-way valve and the inlet end of the air channel; the pressure detection piece is in signal connection with the compressor and sends out a pressure signal to control starting and stopping of the compressor. And the gas utilization requirement of gas utilization equipment at the outlet end of the gas channel is met, and gas supply waste is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of medical equipment, and in particular to an air circuit switching device, a ventilator device and a medical system. Background Art

[0002] Medical air systems supply air to medical equipment to ensure the normal operation of treatment. Anesthesia machines, ventilators, and other equipment require these systems. To ensure a stable air supply to medical equipment, both air and compressor sources are typically used. If the air source is not providing stable air, the system may be unstable. If the compressor source is providing air for an extended period of time, the compressor may overheat and be damaged.

[0003] In the existing methods, the switching between air source and compressor source mainly relies on manual switching or setting a fixed time to switch the gas source, but both methods cannot achieve the optimization of gas source use, resulting in waste of gas supply. Utility Model Content

[0004] The purpose of this application is to provide a gas circuit switching device, a ventilator device, and a medical system to improve at least one of the above technical problems. This application achieves the above purpose through the following technical solutions.

[0005] In a first aspect, an embodiment of the present application provides a gas path switching device, characterized in that it includes:

[0006] A compressor connected to a gas-generating device;

[0007] A base, wherein the base is provided with an airway and a mounting hole, wherein the mounting hole is connected to the airway; an inlet end of the airway is connected to an air source, and an outlet end of the airway is connected to a general air-conditioning device;

[0008] a one-way valve, the one-way valve being disposed in the airway; the one-way valve being used to conduct the flow from the inlet end of the airway toward the outlet end of the airway and to block the flow from the outlet end of the airway toward the inlet end of the airway; and

[0009] A pressure detection component is installed in the air duct and placed between the one-way valve and the inlet end of the air duct; the pressure detection component is connected to the compressor signal, and the pressure detection component sends a pressure signal to control the start and stop of the compressor.

[0010] In some embodiments, the pressure detecting element is used to send a first pressure signal, and the compressor stops working according to the first pressure signal.

[0011] In some embodiments, the pressure detecting element is further configured to send a second pressure signal, and the compressor starts operating according to the second pressure signal.

[0012] In some embodiments, the pressure detected when the pressure detecting element sends the first pressure signal is greater than the pressure detected when the pressure detecting element sends the second pressure signal.

[0013] In some embodiments, the base, the one-way valve, and the pressure detecting element constitute a valve assembly, and the valve assembly is installed on the compressor.

[0014] In some embodiments, the inlet end of the air channel and the outlet end of the air channel are arranged on different surfaces of the base.

[0015] In some embodiments, the inlet end of the air duct, the outlet end of the air duct, and the mounting hole are all arranged on different surfaces of the base.

[0016] In some embodiments, the air path switching device includes a first connector and a second connector; the first connector is installed at the inlet end of the air duct and is sealed with the base, and the air source is connected to the inlet end of the air duct through the first connector; the second connector is installed at the outlet end of the air duct and is sealed with the base, and the air-using end is connected to the outlet end of the air duct through the second connector.

[0017] In a second aspect, an embodiment of the present application provides a ventilator device, comprising:

[0018] ventilators; and

[0019] As in the above-mentioned airway switching device, the outlet end of the airway is connected to the ventilator.

[0020] In a second aspect, embodiments of the present application provide a medical system, comprising:

[0021] Air source; and

[0022] As for the ventilator device mentioned above, the ventilator device is connected to the air source.

[0023] The beneficial effects achieved by the present invention are as follows: an air duct and a mounting hole connected to the air duct are provided on the base, and the mounting hole is connected to the outlet end of the compressor. A one-way valve is provided in the air duct, and the one-way valve is used to guide the air duct inlet end toward the outlet end of the air duct. A pressure detection component is also provided between the one-way valve and the air duct inlet end, and the pressure detection component is connected to the compressor signal to send out a pressure control signal to control the start and stop of the compressor. When the air source connected to the inlet end of the air duct is sufficient to meet the demand of the outlet end of the air duct, the compressor does not work. When the pressure of the air source connected to the inlet end of the air duct is too low to meet the demand, the pressure detection component sends a control signal to start the compressor to ensure the gas demand of the gas-consuming equipment at the outlet end of the air duct, so as not to cause waste of gas supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a schematic diagram of the disassembled structure of the gas path switching device provided by the present invention (the compressor is not shown);

[0026] Figure 2 This is a schematic cross-sectional view of the gas path switching device provided by the present invention (the compressor is not shown);

[0027] Figure 3 This is a schematic cross-sectional view of the gas path switching device provided by the present invention from another angle (the compressor is not shown);

[0028] Figure 4 It is a gas path schematic diagram of the gas path switching device provided by the utility model.

[0029] Description of the drawings:

[0030] 100, path switching device; 101, base; 1011, airway; 1012, mounting hole; 102, sealing ring; 103, one-way valve; 104, pressure detection element; 105, first connector; 106, second connector;

[0031] 200. Compressor. DETAILED DESCRIPTION

[0032] The embodiments of the present application are described in detail below, and 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 having 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 understood as limiting the present application.

[0033] In order to enable those skilled in the art to better understand the present application, the following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0034] In this application, unless otherwise expressly specified or limited, terms such as "mounted" and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral connections; mechanical connections; direct connections, indirect connections through an intermediary, internal communication between two components, surface contact only, or surface contact through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0035] In addition, the terms "first", "second", etc. are only used to distinguish descriptions and should not be understood as specific or special structures. The descriptions of the terms "some embodiments", "other embodiments", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this application, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this application and the features of the different embodiments or examples, unless they are contradictory.

[0036] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

[0037] The utility model is provided with an air duct and a mounting hole connected to the air duct on the base, and the mounting hole is connected to the outlet end of the compressor. A one-way valve is provided in the air duct, and the one-way valve is used to guide the air duct inlet end toward the outlet end of the air duct. A pressure detection component is also provided between the one-way valve and the air duct inlet end, and the pressure detection component is connected to the compressor signal to send out a pressure control signal to control the start and stop of the compressor. When the air source connected to the inlet end of the air duct is sufficient to meet the demand of the outlet end of the air duct, the compressor does not work. When the pressure of the air source connected to the inlet end of the air duct is too low to meet the demand, the pressure detection component sends a control signal to start the compressor to ensure the gas demand of the gas-consuming equipment at the outlet end of the air duct and avoid waste of gas supply.

[0038] Example 1

[0039] like Figures 1 to 4As shown, in this embodiment, a gas path switching device 100 is provided, comprising:

[0040] Compressor 200, compressor 200 is connected to general gas equipment;

[0041] The base 101 is provided with an air passage 1011 and a mounting hole 1012. The mounting hole 1012 is connected to the air passage 1011. The inlet end of the air passage 1011 is connected to an air source, and the outlet end of the air passage 1011 is connected to a general air-conditioning device.

[0042] One-way valve 103, the one-way valve 103 is provided in the airway 1011; the one-way valve 103 is used to conduct the direction from the inlet end of the airway 1011 to the outlet end of the airway 1011, and to block the direction from the outlet end of the airway 1011 to the inlet end of the airway 1011; and

[0043] The pressure detecting component 104 is installed in the mounting hole 1012 and is placed between the one-way valve 103 and the inlet end of the air duct 1011; the pressure detecting component 104 is connected to the compressor 102 signal, and the pressure detecting component 104 sends a pressure signal to control the start and stop of the compressor 102.

[0044] An air channel 1011 is provided on the base 101. The air channel 1011 runs through the base 101. One end of the air channel 1011 is an inlet end for connecting to an air source, and the other end of the air channel 1011 is an outlet end for connecting to a gas terminal. A one-way valve 103 is provided in the air channel 1011. The inlet end of the one-way valve 103 faces the inlet end of the air channel 1011, and the outlet end of the one-way valve 103 faces the outlet end of the air channel 1011. Since the medium in the one-way valve 103 can only flow from the inlet end to the outlet end, the gas in the air channel 1011 can only flow from the inlet end of the air channel 1011 to the outlet end of the air channel 1011 through the one-way valve 103, and reverse gas flow is impossible.

[0045] The base 101 is also provided with a mounting hole 1012, which is connected to the air passage 1011, with the wall of the mounting hole 1012 intersecting with the inner wall of the air passage 1011. A pressure sensor 104 is installed in the mounting hole 1012, positioned between the one-way valve 103 and the inlet of the air passage 1011, and is used to monitor the pressure value of the air source. Specifically, a value can be preset for the pressure sensor. If the monitored pressure is higher than the preset value, a first signal is issued. If the monitored pressure is higher than the preset value, a second signal is issued, and the first and second signals are different.

[0046] Compressor 200 is a driven fluid machine that boosts low-pressure gas to high-pressure gas. It draws low-pressure gas from the intake port, compresses it through a motor-driven piston, and then discharges high-pressure gas from the outlet port. Compressor 200 is connected to gas-consuming equipment and is signal-connected to pressure sensor 104. Pressure sensor 104 issues a pressure control signal to control the start and stop of compressor 200. Specifically, when compressor 200 receives a first signal from pressure sensor 104, it stops. When compressor 200 receives a second signal from pressure sensor 104, it starts.

[0047] In this embodiment, the base 101 is provided with an air passage 1011 and a mounting hole 1012 connected to the air passage 1011. The mounting hole 1012 is connected to the outlet of the compressor 200. A one-way valve 103 is provided in the air passage 1011. The one-way valve 103 is used to direct the flow of air from the inlet of the air passage 1011 to the outlet of the air passage 1011. A pressure detector 104 is also provided between the one-way valve 103 and the inlet of the air passage 1011. The pressure detector 104 is connected to the compressor 200 and generates a pressure control signal to start and stop the compressor 200. When the air source connected to the inlet of the air passage 1011 is sufficient to meet the demand of the outlet of the air passage 1011, the compressor 200 does not operate. When the air source connected to the inlet of the air passage 1011 is too low to meet the demand, the pressure detector 104 generates a control signal to start the compressor 200, thereby ensuring the gas demand of the gas-consuming equipment at the outlet of the air passage 1011 and preventing gas waste.

[0048] Example 2

[0049] Based on the first embodiment, the pressure detection element 104 is used to send a first pressure signal, the compressor 200 stops working according to the first pressure signal, and the one-way valve 103 opens the air channel 1011 from the inlet end of the air channel 1011 to the outlet end of the air channel 1011.

[0050] Specifically, pressure detection element 104 is preset with a pressure threshold. When the pressure detected by pressure detection element 104 exceeds the pressure threshold, pressure detection element 104 sends a first pressure signal to compressor 200. Upon receiving the first pressure signal, compressor 200 shuts down. If compressor 200 was previously operating, it shuts down. If compressor 200 was previously shut down, it remains shut down. At this point, only the air source connected to the inlet of air passage 1011 is supplying air.

[0051] Example 3

[0052] On the basis of the second embodiment, the pressure detecting element 104 is further configured to send a second pressure signal, and the compressor 200 starts to work according to the second pressure signal.

[0053] Specifically, when the pressure detected by the pressure detection element 104 is lower than the pressure threshold, the air source connected to the inlet of the air passage 1011 cannot meet the gas demand of the general gas equipment connected to the outlet of the air passage 1011. The pressure detection element 104 sends a second pressure signal to the compressor 200. The compressor 200 receives the second pressure signal and starts. If the compressor 200 was previously in an operating state, the compressor 200 remains in an operating state; if the compressor 200 was previously in a shutdown state, the compressor 200 starts to operate. At this time, the air source connected to the inlet of the air passage 1011 and the mounting hole 1012 connected to the compressor 200 simultaneously supply air. The one-way valve 103 blocks the flow of gas from the outlet of the air passage 1011 to the inlet of the air passage, preventing the high-pressure gas provided by the compressor 200 from being lost from the inlet of the air passage through the air passage 1011.

[0054] It can be understood that the first pressure signal and the second pressure signal are distinguished to facilitate the identification of the compressor 200 .

[0055] Example 4

[0056] Based on the third embodiment, the pressure detected when the pressure detecting element 104 sends the first pressure signal is greater than the pressure detected when the pressure detecting element 104 sends the second pressure signal.

[0057] The air source connected to the inlet end of the air duct 1011 and the compressor 200 connected to the mounting hole 1012 both supply air to the gas-using equipment connected to the outlet end of the air duct 1011. The gas pressure required by the gas-using equipment must reach a predetermined value. If it cannot be reached, the gas-using equipment cannot be used normally.

[0058] The pressure detection element 104 is arranged in the air passage 1011, and is placed between the one-way valve 103 and the inlet end of the air passage 1011, and is used to detect the air pressure of the air source connected to the inlet end of the air passage 1011. When the air pressure of the air source is lower than a certain value, it cannot meet the normal use of the gas-using equipment. The first pressure signal causes the compressor 200 to shut down, and the gas-using equipment needs to rely solely on the air source for gas supply. The second pressure signal causes the compressor 200 to work, and the compressor 200 and the air source together supply gas to the gas-using equipment. Therefore, the pressure detected when the pressure detection element 104 sends the first pressure signal is greater than the pressure detected when the pressure detection element 104 sends the second pressure signal.

[0059] Example 5

[0060] On the basis of any one of the first to fourth embodiments, the base 101 , the one-way valve 103 and the pressure detection component 104 constitute a valve assembly, and the valve assembly is installed on the compressor 200 .

[0061] The one-way valve 103 and the pressure detection component 104 are both placed in the air passage 1011 of the base 101. The base 101, the one-way valve 103 and the pressure detection component 104 form a valve assembly, which has good integration and is easy to use.

[0062] Example 6

[0063] like Figure 1 As shown, based on the first embodiment, the inlet end of the air channel 1011 and the outlet end of the air channel 1011 are arranged on different surfaces of the base 101 .

[0064] The inlet and outlet of air duct 1011 are connected through the inner cavity of air duct 1011. If the inlet and outlet of air duct 1011 are arranged on the same surface, the inner cavity of air duct 1011 needs to form a 180° turn, which is large and is not conducive to the flow of gas. Placing the inlet and outlet of air duct 1011 on different surfaces of base 101 reduces the turning angle of the inner cavity of air duct 1011 and facilitates the flow of gas within air duct 1011.

[0065] Example 7

[0066] like Figure 1 As shown, based on the first embodiment, the inlet end of the air channel 1011 , the outlet end of the air channel 1011 and the mounting hole 1012 are all provided on different surfaces of the base 101 .

[0067] The beneficial effects of this embodiment are equivalent to those of the sixth embodiment, and are not described in detail here.

[0068] Example 8

[0069] like Figure 1 As shown, based on the first embodiment, the air path switching device 100 includes a first connector 105 and a second connector 106; the first connector 105 is installed at the inlet end of the airway 1011 and is sealed and connected to the base 101, and the air source is connected to the inlet end of the airway 1011 through the first connector 105; the second connector 106 is installed at the outlet end of the airway 1011 and is sealed and connected to the base 101, and the air end is connected to the outlet end of the airway 1011 through the second connector 106.

[0070] A first connector 105 is provided at the inlet of the air passage 1011. One end of the first connector 105 is sealedly connected to the base 101. Specifically, a sealing ring 102 may be provided between the first connector 105 and the base 101 to prevent air leakage at the connection between the first mounting interface and the base 101. The other end of the first connector 105 is adapted to the connector of the air source, facilitating connection and removal to the air source.

[0071] A second connector 106 is provided at the outlet end of the air channel 1011. One end of the second connector 106 is sealedly connected to the base 101 to prevent air leakage at the connection between the second mounting interface and the base 101. The other end of the second connector 106 is adapted to the connector of the gas-consuming device, making it easy to connect or disconnect the device.

[0072] Embodiment 9

[0073] This embodiment provides a ventilator device, including a ventilator and the above-mentioned air path switching device 100, and the outlet end of the airway 1011 is connected to the ventilator.

[0074] The beneficial effects of the ventilator device of this embodiment are equivalent to the beneficial effects of the above-mentioned gas circuit switching device 100, and will not be repeated here.

[0075] Example 10

[0076] This embodiment provides a medical system, including: an air source and a ventilator device, wherein the ventilator device is connected to the air source.

[0077] The beneficial effects of the medical system of this embodiment are equivalent to the beneficial effects of the above-mentioned ventilator equipment, and will not be described in detail here.

Claims

1. A gas path switching device, characterized in that: include: A compressor connected to a gas-generating device; A base, wherein the base is provided with an airway and a mounting hole, wherein the mounting hole is connected to the airway; an inlet end of the airway is connected to an air source, and an outlet end of the airway is connected to the gas-using equipment; a one-way valve, the one-way valve being disposed in the airway; the one-way valve being used to conduct the flow from the inlet end of the airway toward the outlet end of the airway and to block the flow from the outlet end of the airway toward the inlet end of the airway; and A pressure detecting component is installed in the mounting hole and is placed between the one-way valve and the inlet end of the air duct; the pressure detecting component is connected to the compressor signal, and the pressure detecting component sends a pressure signal to control the start and stop of the compressor.

2. The gas path switching device according to claim 1, wherein: The pressure detecting element is used to send a first pressure signal, and the compressor stops working according to the first pressure signal.

3. The gas path switching device according to claim 2, characterized in that: The pressure detecting element is further used to send out a second pressure signal, and the compressor starts to work according to the second pressure signal.

4. The gas path switching device according to claim 3, characterized in that: The pressure detected when the pressure detecting element sends the first pressure signal is greater than the pressure detected when the pressure detecting element sends the second pressure signal.

5. The gas path switching device according to any one of claims 1 to 4, characterized in that: The base, the one-way valve and the pressure detecting element constitute a valve assembly, and the valve assembly is installed on the compressor.

6. The gas path switching device according to claim 1, wherein: The inlet end of the air channel and the outlet end of the air channel are arranged on different surfaces of the base.

7. The gas path switching device according to claim 1, characterized in that: The inlet end of the air duct, the outlet end of the air duct and the mounting hole are all arranged on different surfaces of the base.

8. The gas path switching device according to claim 1, wherein: The air path switching device includes a first connector and a second connector; the first connector is installed at the inlet end of the air duct and is sealed with the base, and the air source is connected to the inlet end of the air duct through the first connector; the second connector is installed at the outlet end of the air duct and is sealed with the base, and the air end is connected to the outlet end of the air duct through the second connector.

9. A ventilator device, characterized in that: include: Ventilator; as well as The airway switching device according to any one of claims 1 to 8, wherein the outlet end of the airway is connected to the ventilator.

10. A medical system, characterized in that: include: Air source; as well as The ventilator device of claim 9, wherein the ventilator device is connected to the air source.

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