Nitric oxide supply pipe

Abstract

The utility model discloses a nitric oxide supply pipe which comprises a supply pipe body, an input pipe and a detection pipe, the supply pipe body comprises an input end and an output end, and the input end and the output end are detachably connected with a funnel-shaped input connector and a funnel-shaped output connector respectively. The air supply pipe main body is provided with an input end and an output end, the inner wall of the air supply pipe main body is provided with air supply lines spirally forward towards the output end, the input pipe is connected to one end, close to the input end, of the air supply pipe main body, and the detection pipe is connected to one end, close to the output end, of the air supply pipe main body. The device can be used in cooperation with a breathing machine, can also be connected with an oxygen pipe of extracorporeal circulation membrane lung equipment, and can conveniently detect the concentration of nitric oxide.

Description

Technical Field

[0001] The utility model belongs to the field of medical equipment, and in particular relates to a nitric oxide gas supply tube. Background Art

[0002] Nitric oxide has three major effects on cardiovascular health in the medical field: 1. Vascular dilation 2. Preventing oxidation of low-density lipoprotein and reducing monocyte adhesion to blood vessel walls 3. Reducing platelet viscosity. At present, the method of using ventilator to inhale nitric oxide to treat pulmonary hypertension is often used clinically. With the advancement and development of medical technology, it has gradually begun to be used in extracorporeal circulation of cardiac surgery for myocardial protection and improving the quality of cardiac surgery. At present, the nitric oxide supply tube can only provide a fixed concentration of nitric oxide continuous output during use, and cannot output nitric oxide gas intermittently in synchronization with the respiratory cycle. It is impossible to monitor the nitric oxide concentration actually inhaled by the user, and it is also impossible to monitor the relevant concentration in the generated waste gas. It is impossible to accurately use nitric oxide to treat patients. The interior of the nitric oxide supply tube adopts a transverse thread shape, and the transverse thread resistance is large, so that nitric oxide stays in the pipeline for a long time and is easily deteriorated to form nitrogen dioxide. The effect of nitric oxide mixing with the airflow in the tube is not good. Moreover, the nitric oxide supply tube can only be used in conjunction with ventilator-type equipment, and cannot be used in conjunction with membrane lung equipment for extracorporeal circulation. There are limitations in its use. Therefore, in order to avoid the shortcomings of the prior art, it is necessary to improve the prior art. Utility Model Content

[0003] The utility model aims to provide a nitric oxide supply tube, which can effectively mix nitric oxide with the airflow in the tube, can be used in conjunction with a ventilator, can also be connected to the oxygen tube of an extracorporeal circulation membrane lung device, and is convenient for detecting the concentration of nitric oxide.

[0004] In order to solve the above technical problems, the technical solutions adopted by the utility model are as follows:

[0005] A nitric oxide gas supply pipe comprises a gas supply pipe body, an input pipe and a detection tube, the gas supply pipe body comprises an input end and an output end, the input end and the output end are respectively detachably connected with a funnel-shaped input joint and an output joint, the inner wall of the gas supply pipe body is provided with a gas supply pattern spiraling forward toward the output end, the input pipe is connected to one end of the gas supply pipe body close to the input end, and the detection tube is connected to one end of the gas supply pipe body close to the output end.

[0006] In some embodiments, there are two input pipes, and the two input pipes are arranged opposite to each other and connected to the side surface of the air supply pipe body close to the input end.

[0007] In some embodiments, there are two detection tubes, which are arranged opposite to each other and connected to the side surface of the gas supply pipe body close to the output end.

[0008] In some embodiments, the air supply pipe body is provided with threads on the outer surfaces of the input end and the output end, and the input connector and the output connector are threadedly connected to the input end and the output end respectively.

[0009] In some embodiments, the input connector is also provided with an electric flow connector for connecting to a nitric oxide machine to measure gas flow.

[0010] In some embodiments, the input tube passes through the input connector and is in communication with the gas supply tube body, and the detection tube passes through the output connector and is in communication with the gas supply tube body.

[0011] Compared with the prior art, the nitric oxide supply pipe provided by the utility model has the following beneficial effects:

[0012] The utility model is used in conjunction with a ventilator or a membrane lung device for extracorporeal circulation by connecting an air supply pipe main body, inputting nitric oxide into the air supply pipe main body through an input pipe, and the ventilator or the membrane lung device for extracorporeal circulation inputting other gases from the input end of the air supply pipe main body to generate an air flow in the pipe, and the air flow in the pipe is mixed with the input nitric oxide and then enters the patient's body from the output end of the air supply pipe main body. The air supply pipe main body comprises an input end and an output end, and the input end and the output end are respectively detachably connected with a funnel-shaped input joint and an output joint, and the input joint and the output joint are arranged in a funnel shape so that the input joint can be connected to an oxygen pipe with a smaller diameter than that of the air supply pipe, and after the input joint and the output joint are installed, the air supply pipe main body can be connected to the oxygen pipe of the membrane lung device for extracorporeal circulation for use, and the input joint and the output joint are made to be detachably connected, so that after being conveniently disassembled, the air supply pipe main body can be connected to the ventilator for use, in this way, the nitric oxide supply pipe can be used in conjunction with the ventilator and can also be used in conjunction with the extracorporeal circulation. The oxygen tube of the membrane lung device is connected, and the inner wall of the air supply tube body is provided with an air supply pattern spiraling forward in the direction of the output end. The spiral forward air supply pattern has less resistance than the horizontal thread of the traditional air supply tube, which is conducive to the rapid spiral advancement of the gas. The spiral advancement of the gas has the effect of stirring the airflow in the tube with the nitric oxide, and can make the internal gas mix and rotate. The nitric oxide and the airflow in the tube rotate and pass through, and the mixing effect is better, thereby improving the mixing uniformity of nitric oxide and the gas, and making the mixing effect of nitric oxide and the airflow in the tube better. In this way, there is no need to use an excessively long air supply tube for transportation in order to fully mix the gas. The input nitric oxide end is closer to the patient end, and the nitric oxide can quickly enter the patient's body in a short time, reducing the residence time of nitric oxide in the pipeline and reducing the probability of conversion into nitrogen dioxide. In addition, a detection tube is connected to the end of the air supply tube body close to the output end, and the detection tube is connected to the detection equipment to facilitate the detection of the concentration of nitric oxide. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0014] Figure 1 It is a schematic diagram of the nitric oxide supply pipe of the utility model;

[0015] Figure 2 It is a cross-sectional schematic diagram of the nitric oxide supply pipe of the utility model.

[0016] Markings in the figure:

[0017] 100, gas supply pipe body; 110, gas supply pattern; 120, input end; 130, output end; 200, input connector; 300, output connector; 400, input tube; 500, detection tube. DETAILED DESCRIPTION

[0018] The embodiments of the present invention 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 invention, and cannot be understood as limiting the present invention.

[0019] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are 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 cannot be understood as a limitation on the present invention.

[0020] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0021] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0022] Please also read Figure 1 to Figure 2 Now, the nitric oxide supply pipe provided in the embodiment of the utility model is described.

[0023] like Figure 1 to Figure 2As shown, the nitric oxide gas supply pipe of the embodiment of the utility model comprises a gas supply pipe body 100, an input pipe 400 and a detection pipe 500, the gas supply pipe body 100 comprises an input end 120 and an output end 130, the input end 120 and the output end 130 are respectively detachably connected with a funnel-shaped input connector 200 and an output connector 300, the inner wall of the gas supply pipe body 100 is provided with a gas supply pattern 110 spirally forward in the direction of the output end 130, the input pipe 400 is connected to the gas supply pipe body 100 near the input end 1 The detection tube 500 is connected to one end of the air supply tube body 100 near the output end 130. The air supply tube body 100 is connected to a ventilator or an extracorporeal circulation membrane lung device for use. Nitric oxide is input into the air supply tube body 100 through the input tube 400. The ventilator or the extracorporeal circulation membrane lung device inputs other gases from the input end 120 of the air supply tube body 100 to generate an in-tube airflow. The in-tube airflow is mixed with the input nitric oxide and enters the patient's body from the output end 130 of the air supply tube body 100.

[0024] The outermost end of the input connector 200 is a 1 / 4 inch PVC tube gas input port, and the outermost end of the output connector 300 is a 1 / 4 inch PVC tube gas output port. The gas input port of the input connector 200 is used to connect the oxygen tube of the extracorporeal membrane lung device that continuously passes airflow, and the gas output port of the output connector 300 is connected to the membrane lung oxygen inlet.

[0025] The air supply pattern 110 spirals forward to form an angle greater than 60 degrees, making the spiral forward effect of the airflow in the air supply pipe body 100 more obvious. The airflow can be better mixed with nitric oxide through the spiral forward movement, achieving a stirring effect, making the airflow and nitric oxide mix more evenly.

[0026] Exemplarily, there are two input tubes 400, and the two input tubes 400 are relatively arranged and connected to the side of the air supply tube body 100 near the input end 120. The two input tubes 400 can simultaneously input nitric oxide to increase the nitric oxide content. The two input tubes 400 are relatively arranged and connected to the side of the air supply tube body 100 near the input end 120, so that nitric oxide can be input into the air supply tube body 100 from both sides respectively. Compared with inputting nitric oxide only from one side, the input nitric oxide can be better mixed with the airflow in the tube. If nitric oxide is input from only one side, nitric oxide is easy to accumulate on one side, and the mixing uniformity is not good.

[0027] Exemplarily, there are two detection tubes 500, which are relatively arranged and connected to the side of the gas supply pipe body 100 near the output end 130. The two detection tubes 500 are relatively arranged and respectively connected to the detection device to measure the concentration of nitric oxide. In addition to measuring the concentration of nitric oxide, by comparing the results measured by the detection devices corresponding to the two detection tubes 500, the uniformity of mixing of nitric oxide and the airflow in the tube can be determined. If the concentration results measured on both sides are relatively close, it can be determined that the uniformity of mixing of nitric oxide and the airflow in the tube is good.

[0028] Exemplarily, the air supply pipe body 100 is provided with threads on the outer surfaces of the input end 120 and the output end 130, and the input connector 200 and the output connector 300 are threadedly connected to the input end 120 and the output end 130 respectively. The threaded connection can be convenient for disassembly and installation, so as to facilitate use with a ventilator or an extracorporeal circulation membrane lung device.

[0029] In other embodiments, a snap-on connection may be provided to facilitate assembly and disassembly. It should be noted that the air supply pipe body 100 needs to be able to be connected to the input connector 200 and the output connector 300, as well as to be able to be connected to the ventilator.

[0030] Exemplarily, the input connector 200 is also provided with an electric flow connector for connecting to the nitric oxide machine to measure the gas flow. The electric flow connector is connected to the nitric oxide machine to measure the gas flow. The electric flow connector is small in size and high in precision, and is convenient for real-time monitoring of the gas flow.

[0031] Exemplarily, the input tube 400 passes through the input connector 200 and is connected to the air supply tube body 100, and the detection tube 500 passes through the output connector 300 and is connected to the air supply tube body 100. The input tube 400 passes through the input connector 200 and is connected to the air supply tube body 100 to ensure that the connection position of the input tube 400 and the air supply tube is close to the input end 120, so that the nitric oxide has a sufficient travel distance to mix with the airflow in the tube. The detection tube 500 passes through the output connector 300 and is connected to the air supply tube body 100 to ensure that the concentration measured from the detection tube 500 is close to the concentration inhaled by the patient, thereby ensuring that the measurement result is accurate.

[0032] When used in an extracorporeal membrane lung device for continuous gas flow: the entire pipeline is connected, the 1 / 4 inch PVC tube gas input port of the funnel-shaped input connector 200 is connected to the oxygen inlet, and the 1 / 4 inch PVC gas output port of the funnel-shaped output connector 300 is connected to the membrane lung oxygen inlet or connected to the membrane lung oxygen inlet after adding a connecting tube.

[0033] When using the ventilator auxiliary device for intermittent airflow: remove the front and rear funnel-shaped input connectors 200 and output connectors 300, connect the electric flow connector to the ventilator, and then connect the air supply tube body 100 to the air inlet end of the ventilator close to the patient's endotracheal tube, and connect the detection tube 500 to the detection device to measure the concentration of nitric oxide. In addition to measuring the concentration of nitric oxide, by comparing the results measured by the detection devices corresponding to the two detection tubes 500, the uniformity of the mixing of nitric oxide and the airflow in the tube can be determined.

[0034] Compared with the prior art, the nitric oxide supply pipe provided by the utility model has the following beneficial effects:

[0035] The utility model is used in conjunction with an air supply pipe body 100 connected to a ventilator or an extracorporeal circulation membrane lung device, nitric oxide is input into the air supply pipe body 100 through an input pipe 400, and the ventilator or the extracorporeal circulation membrane lung device inputs other gases from an input end 120 of the air supply pipe body 100 to generate an air flow in the pipe, and the air flow in the pipe is mixed with the input nitric oxide and enters the patient's body from an output end 130 of the air supply pipe body 100. The air supply pipe body 100 includes an input end 120 and an output end 130, and the input end 120 and the output end 130 are connected to each other. The input connector 200 and the output connector 300 are detachably connected to each other, and the input connector 200 and the output connector 300 are arranged in a funnel shape so that the input connector 200 can be connected to an oxygen tube with a smaller diameter than the air supply tube. After the input connector 200 and the output connector 300 are installed, the oxygen tube of the membrane lung device of the extracorporeal circulation can be connected for use. The input connector 200 and the output connector 300 are made into a detachable connection, so that after being disassembled, the air supply tube body 100 can be connected to the ventilator for use, so that the nitric oxide supply The trachea can be used in conjunction with a ventilator and can also be connected to an oxygen tube of an extracorporeal membrane lung device. An air supply pattern 110 spiraling forward in the direction of the output end 130 is provided on the inner wall of the air supply pipe body 100. The spirally forward air supply pattern 110 has a smaller resistance than the transverse thread of the traditional air supply pipe, which is conducive to the rapid spiral advancement of the gas. The spiral advancement of the gas has the effect of stirring the airflow in the tube with the nitric oxide, which can make the internal gas mix and rotate. The nitric oxide and the airflow in the tube rotate and pass through, and the mixing effect is better. The mixing uniformity of nitric oxide and the gas is improved, and the mixing effect of nitric oxide and the airflow in the tube is better. In this way, there is no need to use an excessively long air supply pipe for transportation in order to fully mix the gas. The nitric oxide input end is closer to the patient end, and the nitric oxide can quickly enter the patient's body in a short time, reducing the residence time of nitric oxide in the pipeline and reducing the probability of conversion into nitrogen dioxide. In addition, the end of the air supply pipe body 100 close to the output end 130 is connected to the detection tube 500, and the detection tube 500 is connected to the detection equipment to facilitate the detection of the concentration of nitric oxide.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A nitric oxide supply pipe, characterized in that: include: An air supply pipe body, the air supply pipe body comprising an input end and an output end, the input end and the output end are respectively detachably connected with a funnel-shaped input joint and an output joint, and an air supply pattern spiraling forward toward the output end is provided on the inner wall of the air supply pipe body; An input pipe, the input pipe being connected to an end of the gas supply pipe body close to the input end; A detection tube is connected to one end of the gas supply pipe body close to the output end.

2. The nitric oxide supply pipe according to claim 1, characterized in that: There are two input pipes, which are arranged opposite to each other and connected to the side surface of the air supply pipe body close to the input end.

3. The nitric oxide supply pipe according to claim 2, characterized in that: There are two detection tubes, which are arranged opposite to each other and connected to the side surface of the gas supply pipe body close to the output end.

4. The nitric oxide supply pipe according to any one of claims 1 to 3, characterized in that: The air supply pipe body is provided with threads on the outer surfaces of the input end and the output end, and the input connector and the output connector are respectively threadedly connected to the input end and the output end.

5. The nitric oxide supply pipe according to any one of claims 1 to 3, characterized in that: The input connector is also provided with an electric flow connector for connecting to a nitric oxide machine to measure gas flow.

6. The nitric oxide supply pipe according to any one of claims 1 to 3, characterized in that: The input pipe passes through the input joint and is communicated with the air supply pipe body, and the detection pipe passes through the output joint and is communicated with the air supply pipe body.

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