Connecting pipe assembly with adjustable switch and flushing functions for bypass flow monitoring equipment

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a bypass flow monitoring equipment connecting pipe assembly with an adjustable switch and a flushing function, which comprises a bypass flow connecting pipe, a first tee joint, a second tee joint, a first needle cylinder and a second needle cylinder, three interfaces of the first tee joint are respectively connected with a lateral interface of the connector on the gas transmission pipeline, the inner end of the bypass flow connecting pipe and the head part of the first needle cylinder; three connectors of the second tee joint are connected with the connector of the water accumulating cup, the outer end of the bypass flow connecting pipe and the head of the second needle cylinder respectively. The connecting pipe assembly can effectively solve the problem of atomization and suction existing in a bypass flow monitoring equipment connecting pipe, and the atomization effect is prevented from being affected; meanwhile, the problem that condensate water and sputum block a pipeline can be solved, and influence on monitoring of gases such as carbon dioxide and nitric oxide is avoided.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a connecting pipe assembly with adjustable switch and flushing function for a bypass monitoring device. Background Technology

[0002] Clinically, bypass monitoring devices mainly include carbon dioxide and nitric oxide therapy monitoring devices. These devices are all connected to the ventilator tubing. Carbon dioxide monitoring devices are used to detect the concentration of carbon dioxide in the patient's exhaled gas. Monitoring ventilation can also reflect circulatory function and pulmonary blood flow. Nitric oxide therapy monitoring devices are used to detect the concentration of nitrogen dioxide in exhaled gas. Inhaling nitric oxide gas can reduce pulmonary artery pressure and improve cardiopulmonary interaction. It is usually used to treat patients with primary or secondary pulmonary hypertension. However, nitric oxide and oxygen can produce toxic nitrogen dioxide gas. Therefore, the concentration of nitrogen dioxide needs to be monitored during nitric oxide therapy in order to adjust the inhaled nitric oxide concentration in a timely manner.

[0003] Monitoring devices for carbon dioxide and nitric oxide therapy have similar structures, mainly consisting of sensors, airflow sampling pipes, suction pumps, and displays or data processing units. The sensors primarily measure the concentration of carbon dioxide or nitric oxide in exhaled air, typically using infrared spectroscopy to monitor gas composition in real time. The airflow sampling pipe guides the patient's exhaled air to the sensors. The suction pump draws in the gas and delivers it to the sensors through the airflow sampling pipes. The displays or data processing units show the monitoring data and analysis results in real time.

[0004] In the aforementioned monitoring equipment, one end of the bypass connection tube (i.e., the airflow sampling tube) is connected to the side of the ventilator tubing, and the other end is connected to the sensor. The patient's exhaled gas is drawn through this tube to the sensor for analysis. This tube currently has the following problems: the tube is relatively thin and is often blocked by condensation, affecting gas monitoring; and when some ICU patients are routinely nebulized, it is best to remove the bypass nebulizer connector, otherwise the nebulized medication will be drawn away by the bypass connection tube, affecting the nebulization effect. Utility Model Content

[0005] To address the aforementioned issues, this invention provides a connecting pipe assembly for a bypass monitoring device with an adjustable switch and flushing function. During atomization, the bypass path can be closed without disassembly, preventing the atomized airflow from being drawn in; and the assembly can also flush out condensate in the connecting pipe to prevent blockage.

[0006] To achieve the above objectives, the specific technical solution adopted by this utility model is as follows:

[0007] A bypass monitoring device includes a connecting tube assembly with an adjustable switch and flushing function. The gas delivery line includes an oral cannula, a ventilator line, and a connector with a side interface connecting the oral cannula and the ventilator line. The sensing device is equipped with a water collection cup with an interface. The connecting tube assembly includes a bypass connecting tube, a first tee, a second tee, a first syringe, and a second syringe. The three interfaces of the first tee are respectively connected to the side interface of the connector, the inner end of the bypass connecting tube, and the head of the first syringe. The three interfaces of the second tee are respectively connected to the interface of the water collection cup, the outer end of the bypass connecting tube, and the head of the second syringe.

[0008] The aforementioned connecting tube assembly of this utility model effectively solves the problems of nebulization suction and blockage by setting two T-junctions and two syringes on the bypass connecting tube: During nebulization, it is not necessary to disassemble; simply rotate the first T-junction to close the bypass connecting tube, preventing the nebulized medication in the gas delivery line from being sucked away by the bypass connecting tube; When there is condensate blockage in the condenser tube, close the interfaces between the oxygen delivery line connector and the sensing device by connecting the two T-junctions, forming a passage between the two syringes. By pumping air from the two syringes, the bypass connecting tube is flushed, removing condensate without affecting the gas delivery line and the sensing device; In addition, when there is sputum blockage in the condenser tube, the pipeline can be cleaned by pumping water from the two syringes, and the waste liquid can be directly collected into the syringes, which is very convenient.

[0009] Preferably, the first tee includes a T-shaped first tee tube body with three channels and a first control valve rotatably disposed in the middle of the first tee tube body. The rotation of the first control valve controls the connection of at least two of the three channels of the first tee tube body. The outer ports of the three channels of the first tee tube body are the three interfaces of the first tee. The outer ports of the left and right channels are threadedly connected to the inner end of the bypass connecting pipe and the side interface of the connector, respectively. The outer port of the lower channel is plugged into and plugged into the head of the first syringe.

[0010] Furthermore, the outer port of the right channel of the first tee pipe body and the inner end of the bypass connecting pipe are respectively provided with a first connecting nut and a third connecting nut with internal threads; the side interface of the connector is provided with an external thread that mates with the internal thread of the first connecting nut, and the outer port of the left channel of the first tee pipe body is provided with an external thread that mates with the internal thread of the third connecting nut.

[0011] Preferably, the second three-way valve includes a T-shaped main body with three channels and a second control valve rotatably disposed in the middle of the main body. The rotation of the second control valve controls the connection of at least two of the three channels of the main body. The outer ports of the three channels of the main body are the three interfaces of the second three-way valve. The outer ports of the left and right channels are threadedly connected to the interface of the water collection cup and the outer end of the bypass connecting pipe, respectively. The outer port of the lower channel is plugged into and disconnected from the head of the second syringe.

[0012] Furthermore, the outer port of the left channel of the second three-way pipe body and the outer end of the bypass connecting pipe are respectively provided with a second connecting nut and a fourth connecting nut with internal threads; the interface of the water collection cup is provided with an external thread that mates with the internal thread of the second connecting nut, and the outer port of the right channel of the second three-way pipe body is provided with an external thread that mates with the internal thread of the fourth connecting nut.

[0013] Preferably, the first tee and the second tee are installed in the same orientation.

[0014] Preferably, the first syringe and the second syringe are 50 mL or 60 mL in size.

[0015] This utility model has the following beneficial effects:

[0016] 1. The passage can be closed without disassembly during atomization to prevent the bypass connection tube from being sucked in and thus avoid affecting the atomization effect.

[0017] 2. When there is condensation blockage, air is pumped through two syringes to flush out the condensation in the bypass connection tube; when there is sputum blockage, water is pumped through two syringes to clean the bypass connection tube. This avoids affecting gas concentration monitoring due to blockage.

[0018] 3. The two T-junctions ensure that the oxygen delivery line and sensing equipment are not affected during condensate flushing and pipeline cleaning. The two syringes allow for bidirectional flushing and cleaning, ensuring the effectiveness of flushing and cleaning, while also collecting waste liquid, making operation convenient.

[0019] 4. This utility model is applicable to bypass monitoring equipment for carbon dioxide, nitric oxide, etc. in breathing tubing. Attached Figure Description

[0020] Figure 1 Example 1: A schematic diagram of the connecting pipe assembly with adjustable switch and flushing function of the bypass monitoring device.

[0021] Figure 2 : Specific structural diagrams of the first tee and the second tee in Example 1.

[0022] Figure 3 Internal cross-sectional view of the first tee in Example 1.

[0023] In the diagram: 1-Bypass connection tube, 2-First tee, 3-Second tee, 4-First syringe, 5-Second syringe, 6-Oral cannula, 7-Connector, 8-Ventilator tubing, 9-Accumulation cup; 11-Third connecting nut, 12-Fourth connecting nut, 21-First tee tube body, 22-First control valve, 31-Second tee tube body, 32-Second control valve; 211-First connecting nut, 311-Second connecting nut. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that if the present invention uses terms such as "upper," "lower," "left," "right," "inner," or "outer" to indicate orientation or positional relationship, these are based on the orientation or positional relationship shown in the accompanying drawings or the conventional placement or usage state. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure, feature, device, or element referred to must have a specific orientation or positional relationship, nor that it must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0025] Example 1

[0026] A connecting pipe assembly for a bypass monitoring device, such as an adjustable switch and a flushing function. Figure 1 As shown, the device is positioned between the gas delivery line (for ventilators controlling oxygen, nitric oxide, and other gas delivery types) and the sensing device. The gas delivery line includes an oral cannula 6 near the mouth, a ventilator tubing 8 connecting to the ventilator, and a connector 7 with a side interface connecting the oral cannula 6 and the ventilator tubing 8. The sensing device is equipped with a water collection cup 9 with an interface, which is placed in its designated position. The sensing device contains a vacuum pump and a detection and analysis component, which can analyze the concentration of the gas entering the water collection cup 9.

[0027] The connecting tube assembly includes a bypass connecting tube 1, a first tee 2, a second tee 3, a first syringe 4, and a second syringe 5; the three ports of the first tee 2 are respectively connected to the side port of the connector 7, the inner end of the bypass connecting tube 1, and the head of the first syringe 4; the three ports of the second tee 3 are respectively connected to the port of the water collection cup 9, the outer end of the bypass connecting tube 1, and the head of the second syringe 5.

[0028] More specifically, the structures of the first tee 2 and the second tee 3 are as follows: Figure 2 As shown.

[0029] The first three-way connector 2 includes a T-shaped three-channel main body 21 and a first control valve 22 rotatably disposed in the middle of the main body 21. Rotation of the first control valve 22 controls the connection of at least two of the three channels of the main body 21. The outer ports of the three channels of the main body 21 are the three interfaces of the first three-way connector 2. The outer ports of the left and right channels are threadedly connected to the inner end of the bypass connecting pipe 1 and the side interface of the connector 7, respectively. The outer port of the lower channel is plugged into the head of the first syringe 4. The outer port of the right channel of the main body 21 and the inner end of the bypass connecting pipe 1 are respectively provided with a first connecting nut 211 and a third connecting nut 11 with internal threads. The side interface of the connector 7 has an external thread that mates with the internal thread of the first connecting nut 211, and the outer port of the left channel of the main body 21 has an external thread that mates with the internal thread of the third connecting nut 11.

[0030] The second three-way connector 3 includes a T-shaped three-channel main body 31 and a second control valve 32 rotatably disposed in the middle of the main body 31. Rotation of the second control valve 32 controls the connection of at least two of the three channels of the main body 31. The outer ports of the three channels of the main body 31 are the three interfaces of the second three-way connector 3. The outer ports of the left and right channels are threadedly connected to the interface of the water collection cup 9 and the outer end of the bypass connecting pipe 1, respectively. The outer port of the lower channel is plugged into the head of the second syringe 5. The outer port of the left channel of the second three-way connector 31 and the outer end of the bypass connecting pipe 1 are respectively provided with a second connecting nut 311 and a fourth connecting nut 12 with internal threads. The interface of the water collection cup 9 is provided with an external thread that mates with the internal thread of the second connecting nut 311, and the outer port of the right channel of the second three-way connector 31 is provided with an external thread that mates with the internal thread of the fourth connecting nut 12.

[0031] The first control valve 22 and the second control valve 32 have the same structure, with a closed end on the top in four directions and three connecting ends with protruding handles (with arrows for indicating the direction of connection). The bottom of the closed end is closed, and the bottom of the connecting end has an opening communicating with the channel of the three-way pipe body. Figure 3 Therefore, by controlling the rotation of the control valve, at least two of the three channels of the three-way pipe body can be connected.

[0032] The first three-way connector 2 and the second three-way connector 3 are installed facing the same direction for ease of operation. The first syringe 4 and the second syringe 5 are both 60ml.

[0033] The connecting pipe assembly of this embodiment is connected between the gas pipeline and the carbon dioxide monitoring sensor, and the usage method is as follows:

[0034] Under normal conditions, the closed ends of the first three-way valve 2 and the second three-way valve 3 face the syringe, so that the two ends of the bypass connecting tube 1 are connected to the gas (oxygen) pipeline and the water collection cup 9 respectively, for monitoring carbon dioxide concentration;

[0035] When the nebulization function is activated, rotate the first tee 2 so that its closed end faces the connector 7 to close the passage between the bypass connection pipe 1 and the gas supply line, and prevent the bypass connection pipe 1 from drawing the nebulized medicine; after the nebulization is completed, restore the tee to its normal state to reopen the monitoring line.

[0036] When condensate appears in the bypass connection tube 1, rotate the first tee 2 so that its closed end faces the connector 7, and rotate the second tee 3 so that its closed end faces the interface of the water collection cup 9. The bypass connection tube 1 forms a passage with the first syringe 4 and the second syringe 5. Select a syringe to draw air and connect it to the tee, and quickly push air into the syringe to flush the condensate out of the bypass connection tube 1 into another syringe, thus completing the removal and collection of condensate.

[0037] If a small amount of sputum is aspirated into the bypass connection tube 1, the opening and closing states of the first three-way valve 2 and the second three-way valve 3 are the same as those for condensate treatment. One or both of the first syringe 4 and the second syringe 5 can be selected to first draw physiological saline to flush the bypass connection tube 1 in one or two directions. The waste liquid is collected by the syringe and then air is drawn to rinse and dry it.

[0038] In this embodiment, the connecting tube assembly can also be connected between the gas supply line and the nitric oxide monitoring and treatment sensor, and the usage method is the same as above.

[0039] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. Any changes made by those skilled in the art after reading the specification of the present utility model, as long as they are within the scope of the claims of the present utility model, will be protected by patent law.

Claims

1. A connection pipe assembly with adjustable switch and flush function for a side stream monitoring device, characterized in that The gas delivery line is located between the gas delivery line and the sensing device. The gas delivery line includes an oral cannula (6), a ventilator line (8), and a connector (7) that connects the oral cannula (6) and the ventilator line (8) and has a side interface. The sensing device is equipped with a water collection cup (9) with an interface. The connecting tube assembly includes a bypass connecting tube (1), a first tee (2), a second tee (3), a first syringe (4), and a second syringe (5); the three ports of the first tee (2) are respectively connected to the side port of the connector (7), the inner end of the bypass connecting tube (1), and the head of the first syringe (4); the three ports of the second tee (3) are respectively connected to the port of the water collection cup (9), the outer end of the bypass connecting tube (1), and the head of the second syringe (5).

2. The connecting tube assembly with adjustable switch and flush function for a side-stream monitoring device according to claim 1, characterized in that The first three-way valve (2) includes a T-shaped first three-way valve body (21) with three channels and a first control valve (22) rotatably disposed in the middle of the first three-way valve body (21). The rotation of the first control valve (22) controls the connection of at least two of the three channels of the first three-way valve body (21). The outer ports of the three channels of the first three-way valve body (21) are the three interfaces of the first three-way valve (2). The outer ports of the left and right channels are threadedly connected to the inner end of the bypass connecting pipe (1) and the side interface of the connector (7), respectively. The outer port of the lower channel is plugged into and plugged into the head of the first syringe (4).

3. The connecting tube assembly with adjustable switch and flush function for a side stream monitoring apparatus according to claim 2, characterized in that The outer port of the right channel of the first three-way pipe body (21) and the inner end of the bypass connecting pipe (1) are respectively provided with a first connecting nut (211) and a third connecting nut (11) with internal threads; the side interface of the connector (7) is provided with an external thread that mates with the internal thread of the first connecting nut (211), and the outer port of the left channel of the first three-way pipe body (21) is provided with an external thread that mates with the internal thread of the third connecting nut (11).

4. The connecting tube assembly with adjustable switch and flush function for a side stream monitoring apparatus according to claim 1, wherein The second three-way valve (3) includes a T-shaped three-way valve body (31) with three channels and a second control valve (32) rotatably disposed in the middle of the two-way valve body (31). The rotation of the second control valve (32) controls the connection of at least two of the three channels of the two-way valve body (31). The outer ports of the three channels of the two-way valve body (31) are the three interfaces of the second three-way valve (3). The outer ports of the left and right channels are respectively threaded to the interface of the water collection cup (9) and the outer end of the bypass connection pipe (1). The outer port of the lower channel is plugged into the head of the second syringe (5).

5. The connecting tube assembly with adjustable switch and flush function for a side stream monitoring apparatus according to claim 4, characterized in that The outer port of the left channel of the second three-way pipe body (31) and the outer end of the bypass connecting pipe (1) are respectively provided with a second connecting nut (311) and a fourth connecting nut (12) with internal threads; the interface of the water collection cup (9) is provided with an external thread that mates with the internal thread of the second connecting nut (311), and the outer port of the right channel of the second three-way pipe body (31) is provided with an external thread that mates with the internal thread of the fourth connecting nut (12).

6. The connecting tube assembly with adjustable switch and flush function for a side stream monitoring apparatus according to claim 1, wherein The mounting directions of the first three-way joint (2) and the second three-way joint (3) are consistent.

7. The connecting tube assembly with adjustable switch and flush function for a side stream monitoring apparatus according to claim 1, wherein The specifications of the first syringe (4) and the second syringe (5) are 50 mL or 60 mL.

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