Gas mixing device

Abstract

The utility model discloses a gas mixing device which comprises a first output pipeline, a double-row pipe, a second output pipeline and a corrugated pipe, and the first output pipeline and the second output pipeline are arranged at the two ends of the corrugated pipe respectively. The double-row pipe comprises a first pipeline, a second pipeline and a connecting pipeline, and the first pipeline and the second pipeline are arranged at the same end of the connecting pipeline; the first output pipeline is connected with the first pipeline, and the second output pipeline is connected with the second pipeline. The corrugated pipe arranged between the first output pipeline and the second output pipeline can stretch out and draw back, so that the distance between the first output pipeline and the second output pipeline is changed, in addition, the corrugated pipe can be bent, condensed water drops are gathered at the bent position and are prevented from being hung at gas ports of the first output pipeline and the second output pipeline, and the gas mixing effect is improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical equipment, and in particular to a gas mixing device. Background Art

[0002] In current clinical treatment, therapeutic gases are provided to patients through devices such as ventilators to achieve therapeutic effects. This is usually achieved by mixing therapeutic gases, such as nitric oxide, into the ventilator's output gas. This gas mixing process requires the use of a gas mixer, which is typically used to mix the therapeutic gas with the inhaled gas.

[0003] Most of the mixers currently sold are integrated mixers. The distance between the air outlet and the sampling port of the integrated mixer is relatively short. The water vapor in the joint condenses into water droplets, which are easy to hang on the air outlet and the sampling port, or enter the sampling tube, increasing the gas resistance and affecting the gas mixing effect, resulting in differences between the sampling monitoring data and the actual concentration inhaled by the patient. Utility Model Content

[0004] The technical problem to be solved by this application is that the distance between the air outlet and the sampling port of the integrated mixer is relatively short, and the water vapor in the joint condenses into water droplets, which are easy to hang on the air outlet and the sampling port, or enter the sampling tube, increasing the gas resistance and affecting the gas mixing effect, resulting in a difference between the sampling monitoring data and the actual concentration inhaled by the patient.

[0005] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a gas mixing device.

[0006] The utility model discloses a gas mixing device, which includes a first output pipe, a double-row pipe, a second output pipe and a bellows, wherein the first output pipe and the second output pipe are respectively arranged at both ends of the bellows;

[0007] The double-row pipe includes a first pipe, a second pipe, and a connecting pipe, wherein the first pipe and the second pipe are arranged at the same end of the connecting pipe;

[0008] The first output pipe is connected to the first pipe, and the second output pipe is connected to the second pipe.

[0009] Preferably, the first output pipeline includes a first input part, a first gas delivery part, and a first output part, the first input part is connected to the first output part, the first gas delivery part is connected to the first output part, the first input part and the first output part are respectively arranged at the two ends of the first output pipeline, and the first gas delivery part is arranged on the side wall of the first output pipeline.

[0010] Preferably, the first output part is connected to the bellows, and the first gas delivery part is connected to the first pipeline.

[0011] Preferably, the second output pipeline includes a second input part, a second gas delivery part, and a second output part, the second input part is connected to the second output part, the second gas delivery part is connected to the second output part, the second input part and the second output part are respectively arranged at the two ends of the second output pipeline, and the second gas delivery part is arranged on the side wall of the second output pipeline.

[0012] Preferably, the second output part is connected to the bellows, and the second gas delivery part is connected to the second pipeline.

[0013] Preferably, the double-row pipe includes a third pipe and a fourth pipe, and the third pipe and the fourth pipe are arranged at the same end of the connecting pipe;

[0014] The first pipeline is communicated with the third pipeline, and the second pipeline is communicated with the fourth pipeline.

[0015] Preferably, it comprises an output interface and a sampling interface, the output interface is connected to the third pipeline, and the sampling interface is connected to the fourth pipeline.

[0016] Preferably, the connecting pipe includes a first connecting pipe and a second connecting pipe, and the first connecting pipe is connected to the second connecting pipe.

[0017] Preferably, the first pipe and the third pipe are connected to two ports of the first connecting pipe respectively, and the second pipe and the fourth pipe are connected to two ports of the second connecting pipe respectively.

[0018] Preferably, the first output pipe and the second output pipe are provided with installation positions.

[0019] The above technical solution provided by this application has the following advantages compared with the existing technology:

[0020] The present application provides a gas mixing device, in which a first output pipe is connected to a gas supply device, and the first pipe of the double-row pipe inputs the therapeutic gas into the first output pipe, the gas is mixed in the bellows, and then output from the second output pipe. The second pipe is connected to the second output pipe, and in the second pipe, the current gas output from the second output pipe is sampled to judge the mixing effect of the current gas. The bellows arranged between the first output pipe and the second output pipe can be extended and retracted, thereby changing the distance between the first output pipe and the second output pipe. In addition, the bellows itself can be bent to allow condensed water droplets to gather at the bend to avoid hanging at the gas outlet of the first output pipe and the second output pipe, thereby improving the gas mixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention.

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 A schematic structural diagram of a gas mixing device provided in this application;

[0024] Figure 2 This is a schematic diagram of the connection structure of the first output pipe, bellows, and second output pipe of a gas mixing device provided by the present application;

[0025] Figure 3 A schematic diagram of the exploded structure of a first output pipe, a bellows, and a second output pipe of a gas mixing device provided in this application;

[0026] Figure 4 This is a schematic diagram of the connection structure of the double-row tubes, output interface, and sampling interface of the xx device provided in this application.

[0027] Description of reference numerals:

[0028] 1. Gas mixing device;

[0029] 11. First output pipe; 111. First input part; 112. First gas transmission part; 113. First output part; 114. Mounting position;

[0030] 12. Second output pipeline; 121. Second input portion; 122. Second gas transmission portion; 123. Second output portion;

[0031] 13. Bellows;

[0032] 14. Double-row pipe; 141. First pipe; 142. Second pipe; 143. Third pipe; 144. Fourth pipe; 145. Connecting pipe; 1451. First connecting pipe; 1452. Second connecting pipe;

[0033] 15. Output interface;

[0034] 16. Sampling interface. DETAILED DESCRIPTION

[0035] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions of this application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0036] See Figure 1-4 The utility model discloses a gas mixing device 1, which is connected to a ventilator and mixes therapeutic gas with oxygen, so that the ventilator can provide gas for treatment.

[0037] The gas mixing device 1 includes a first output pipe 11, a double-row pipe 14, a second output pipe 12, a bellows 13, an output interface 15 and a sampling interface 16. The first output pipe 11 and the second output pipe 12 are respectively arranged at the two ends of the bellows 13, the output interface 15 and the sampling interface 16 are arranged at the same end of the double-row pipe 14, and the first output pipe 11 and the second output pipe 12 are arranged at the other end of the double-row pipe 14.

[0038] The double-row pipe 14 includes a first pipe 141, a second pipe 142, a third pipe 143, a fourth pipe 144, and a connecting pipe 145. The first pipe 141 and the second pipe 142 are arranged at the same end of the connecting pipe 145, the third pipe 143 and the fourth pipe 144 are arranged at the same end of the connecting pipe 145, and the third pipe 143 and the fourth pipe 144 are arranged at the other end of the connecting pipe 145. The first output pipe 11 is connected to the first pipe 141, the second output pipe 12 is connected to the second pipe 142, the first pipe 141 is in communication with the third pipe 143, and the second pipe 142 is in communication with the fourth pipe 144. The output port 15 is connected to the third pipe 143, and the sampling port 16 is connected to the fourth pipe 144.

[0039] The connecting tubes include a first connecting tube 1451 and a second connecting tube 1452. The first connecting tube 1451 and the second connecting tube 1452 are connected. The first output pipe 11 and the output interface 15 are respectively provided at both ends of the first connecting tube 1451, and the second output pipe 12 and the sampling interface 16 are respectively provided at both ends of the second connecting tube 1452. Specifically, the outer walls of the first connecting tube 1451 and the second connecting tube 1452 are adhered to each other. The first pipe 141 and the third pipe 143 are respectively connected to the two ends of the first connecting tube 1451, and the second pipe 142 and the fourth pipe 144 are respectively connected to the two ends of the second connecting tube 1452, so that gas from one end of the double-row tube 14 is transferred to the other end.

[0040] The first output pipe 11 is connected to the gas supply equipment, and the output interface 15 is connected to the gas supply equipment of the therapeutic gas, and the gas is transferred to the first connecting pipe 1451 and the first pipe 141 through the third pipe 143. The first pipe 141 inputs the therapeutic gas into the first output pipe 11, and the gas is mixed in the bellows 13 and then output from the second output pipe 12. The second pipe 142 is connected to the second output pipe 12, and the sampling interface 16 is connected to the sampling pump to extract the gas in the second output pipe 12. In the second pipe 142, the current gas output from the second output pipe 12 is sampled. The gas passes through the second pipe 142, the second connecting pipe 1452, and the fourth pipe 144. The sampling pump extracts the mixed gas to judge the mixing effect of the current gas.

[0041] Specifically, the bellows 13 provided between the first output pipe 11 and the second output pipe 12 can be extended and retracted, thereby changing the distance between the first output pipe 11 and the second output pipe 12. In addition, the bellows 13 itself can be bent, so that condensed water droplets gather at the bend to avoid hanging at the air outlets of the first output pipe 11 and the second output pipe 12, thereby improving the gas mixing effect. Furthermore, a sampling gas circuit is connected to the second output pipe 12 to allow the liquid to remain in the bellows 13. After the gas is mixed in the bellows 13, the gas mixing effect in the second output pipe 12 is better, and the effect when inhaling the gas is better. At the same time, the detection of the concentration of the gas inhaled by the patient is more accurate.

[0042] In addition, the output interface 15 and the sampling interface 16 are set separately, so that the sampling gas path and the output gas path are separated, and the access sampling equipment and the gas supply equipment are separated, making the plug-in more flexible and avoiding the device switching the interface between the output gas path and the sampling gas path, adapting to more gas paths and positions.

[0043] Optionally, filters can be installed at the interfaces at both ends of the bellows 13. The filters can be made of filter mesh or filter cotton, which can filter the gas entering the bellows 13 and filter the output gas at the same time.

[0044] The first output pipe 11 includes a first input part 111, a first gas delivery part 112, and a first output part 113. The first input part 111 is connected to the first output part 113, and the first gas delivery part 112 is connected to the first output part 113. The first input part 111 and the first output part 113 are respectively arranged at the two ends of the first output pipe 11, and the first gas delivery part 112 is arranged on the side wall of the first output pipe 11. The first output part 113 is connected to the bellows 13, and the first gas delivery part 112 is connected to the first pipe 141.

[0045] Specifically, the first input part 111 is connected to the ventilator, the oxygen provided by the ventilator is input from the first input part 111, the first pipeline 141 inputs the therapeutic gas to the first gas delivery part 112, the gas connected to the first input part 111 and the therapeutic gas connected to the first gas delivery part 112 are simultaneously input into the bellows 13 from the first output part 113, and the gases are mixed in the bellows 13. The inner diameter of the first gas delivery part 112 is smaller than the inner diameter of the first input part 111, the inner diameter of the first input part 111 is greater than or equal to the inner diameter of the first output part 113, and the inner diameter of the bellows 13 is greater than or equal to the outer diameter of the first output part 113, so that the bellows 13 can be sleeved on the outside of the first output part 113.

[0046] The second output pipeline 12 includes a second input part 121, a second gas delivery part 122, and a second output part 123. The second input part 121 is connected to the second output part 123, and the second gas delivery part 122 is connected to the second output part 123. The second input part 121 and the second output part 123 are respectively arranged at the two ends of the second output pipeline 12, the second gas delivery part 122 is arranged on the side wall of the second output pipeline 12, the second output part 123 is connected to the bellows 13, and the second gas delivery part 122 is connected to the second pipeline 142.

[0047] Specifically, the inner diameter of the second input part 121 is less than or equal to the inner diameter of the second output part 123, the inner diameter of the second input part 121 is larger than the inner diameter of the second output part 123, the outer diameter of the second input part 121 is less than or equal to the inner diameter of the interface of the bellows 13, the second input part 121 is connected to the bellows 13, the gas inside the bellows 13 is input through the second input part 121, the second gas delivery part 122 is connected to the second pipe 142, the gas is extracted from the second pipe 142, the gas of the second output part 123 is connected to the ventilator, and part of the gas is extracted from the second gas delivery part 122 for sampling and detection. The second output part 123 directly supplies gas to the patient who is supplied with gas by the ventilator, and sampling is performed on the second output pipe 12, where the obtained gas is closer to the supplied gas, so that the results of the sampling and detection are closer to the actual results, and the detection results are more accurate.

[0048] As an embodiment, the bellows 13 is made of flexible material, the outer diameter of the second input part 121 is larger than the inner diameter of the interface of the bellows 13, and the outer diameter of the first output part 113 is larger than the inner diameter of the interface of the bellows 13. Through the elasticity of the bellows 13 itself, it is sleeved on the first output part 113 and the second input part 121, so that the bellows 13 can be sleeved on the first output pipe 11 and the second output pipe 12, thereby improving the airtightness of the pipes.

[0049] The first output pipe 11 and the second output pipe 12 are provided with mounting brackets 114. Specifically, the mounting brackets 114 are provided around the sidewalls of the first output pipe 11 or the second output pipe 12, and the first gas delivery portion 112 and the second gas delivery portion 122 are mounted on the mounting brackets 114. The mounting brackets 114 facilitate the installation of the first output pipe 11 and the second output pipe 12.

[0050] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 invention.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0053] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0054] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0055] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 invention. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring 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 specification.

[0056] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, as long as these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

[0057] The above description is a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A gas mixing device, characterized in that: It includes a first output pipe, a double-row pipe, a second output pipe and a corrugated pipe, wherein the first output pipe and the second output pipe are respectively arranged at two ends of the corrugated pipe; The double-row pipe includes a first pipe, a second pipe, and a connecting pipe, wherein the first pipe and the second pipe are arranged at the same end of the connecting pipe; The first output pipe is connected to the first pipe, and the second output pipe is connected to the second pipe.

2. The device according to claim 1, characterized in that The first output pipeline includes a first input part, a first gas delivery part, and a first output part. The first input part is connected to the first output part, and the first gas delivery part is connected to the first output part. The first input part and the first output part are respectively arranged at the two ends of the first output pipeline, and the first gas delivery part is arranged on the side wall of the first output pipeline.

3. The device according to claim 2, characterized in that The first output part is connected to the bellows, and the first gas delivery part is connected to the first pipeline.

4. The device according to claim 1, characterized in that The second output pipeline includes a second input part, a second gas delivery part, and a second output part. The second input part is connected to the second output part, and the second gas delivery part is connected to the second output part. The second input part and the second output part are respectively arranged at the two ends of the second output pipeline, and the second gas delivery part is arranged on the side wall of the second output pipeline.

5. The device according to claim 4, characterized in that The second output part is connected to the bellows, and the second gas delivery part is connected to the second pipeline.

6. The device according to claim 1, characterized in that The double-row pipe includes a third pipe and a fourth pipe, and the third pipe and the fourth pipe are arranged at the same end of the connecting pipe; The first pipeline is communicated with the third pipeline, and the second pipeline is communicated with the fourth pipeline.

7. The device according to claim 6, characterized in that It includes an output interface and a sampling interface, wherein the output interface is connected to the third pipeline, and the sampling interface is connected to the fourth pipeline.

8. The device according to claim 6, characterized in that The connecting pipe includes a first connecting pipe and a second connecting pipe, and the first connecting pipe is connected to the second connecting pipe.

9. The device according to claim 8, characterized in that The first pipe and the third pipe are connected to two ends of the first connecting pipe respectively, and the second pipe and the fourth pipe are connected to two ends of the second connecting pipe respectively.

10. The device according to claim 1, characterized in that The first output pipe and the second output pipe are provided with installation positions.

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