A breathing tube with sputum collecting function and a breathing device

Abstract

The present application relates to the technical field of medical devices, in particular to a breathing pipeline with sputum collecting function and a breathing device. The breathing pipeline with sputum collecting function comprises a sputum collecting cup, a breathing mask, a connecting head, an inhalation tube and an exhalation tube, and the sputum collecting cup has an accommodating cavity in the interior; the connecting head comprises a first connecting pipe, a second connecting pipe and a third connecting pipe, the first connecting pipe and the second connecting pipe are in communication with each other, the first connecting pipe is installed on the sputum collecting cup and is in communication with the accommodating cavity, the second connecting pipe has a first opening and a second opening at the end away from the first connecting pipe, the second connecting pipe is in communication with the inhalation tube through the first opening, and the second connecting pipe is in communication with the exhalation tube through the second opening; the third connecting pipe is arranged on the outer circumferential surface of the first connecting pipe, the third connecting pipe is in communication with the breathing mask and the first connecting pipe, and the included angle between the axis of the first connecting pipe and the Z-axis direction is less than 90°. The device can avoid sputum from entering the breathing pipeline and the breathing machine.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of medical devices, in particular to a breathing pipeline with sputum collecting function and a breathing device. BACKGROUND

[0002] The breathing pipeline is usually connected between a patient and a breathing machine. Oxygen generated by the breathing machine is transmitted to the patient end through the breathing pipeline, and at the same time, carbon dioxide exhaled by the patient is discharged through the breathing pipeline.

[0003] However, in the prior art, when the breathing pipeline is used to assist the patient in breathing, the sputum in the throat of the patient will enter the breathing pipeline along with the exhalation and enter the breathing machine through the breathing pipeline, which will seriously pollute the breathing machine and thus easily cause cross-infection accidents between different patients. SUMMARY

[0004] The present application aims to solve the problem that in the prior art, sputum will enter the breathing pipeline along with the exhalation and enter the breathing machine through the breathing pipeline, and to provide a breathing pipeline with sputum collecting function and a breathing device.

[0005] To solve the above technical problems, on the one hand, the present application provides a breathing pipeline with sputum collecting function, which comprises a sputum collecting cup, a breathing mask, a connecting head, an inhalation tube and an exhalation tube, and the sputum collecting cup has an accommodating cavity inside.

[0006] The connecting head comprises a first connecting tube, a second connecting tube and a third connecting tube, the first connecting tube and the second connecting tube are in communication with each other, the first connecting tube is installed on the sputum collecting cup and communicates with the accommodating cavity, the second connecting tube has a first opening and a second opening at an end away from the first connecting tube, the second connecting tube communicates with the inhalation tube through the first opening, and the second connecting tube communicates with the exhalation tube through the second opening.

[0007] The third connecting tube is arranged on the outer peripheral surface of the first connecting tube, and the third connecting tube communicates the breathing mask and the first connecting tube.

[0008] When the sputum collecting cup is placed horizontally, the angle between the axis of the first connecting tube and the Z-axis direction is greater than or equal to 0°, and the angle between the axis of the first connecting tube and the Z-axis direction is less than 90°.

[0009] Optionally, the breathing pipeline with sputum collecting function further comprises an adapter tube, and the adapter tube is in communication between the breathing mask and the third connecting tube.

[0010] The outer wall of the adapter pipe is provided with a corrugated structure, and the adapter pipe can be bent through the corrugated structure; the inner wall of the adapter pipe is provided with a flexible smooth structure for reducing the resistance of sputum flow. In this embodiment, compared with the ordinary pipeline, the adapter pipe in this application can ensure the bending property while making the internal smooth design friction resistance coefficient lower, thereby being more conducive to sputum flow. In this embodiment, the adapter pipe can be an integrated pipe with a corrugated structure on the outer wall and a smooth structure inside, or a combination pipe formed by a corrugated pipe sleeved on a smooth pipe. The smooth structure or the smooth pipe in this embodiment has a contraction property and is made of a flexible material or an elastic material.

[0011] Optionally, the respiratory pipeline with the sputum collection function further comprises a transition pipe, the transition pipe is communicated between the first connecting pipe and the second connecting pipe, and the axis of the first connecting pipe is perpendicular to the axis of the second connecting pipe. In this embodiment, after the gas flow with sputum in the third connecting pipe enters the first connecting pipe, part of the sputum in the carbon dioxide gas flow can be removed under the action of the inner wall of the first connecting pipe, and then the gas flow in the first connecting pipe enters the transition pipe. By arranging the axis of the first connecting pipe and the axis of the second connecting pipe to be perpendicular to each other, the gas flow in the first connecting pipe entering the transition pipe can be collided on the inner wall of the transition pipe, so that the transition pipe can further remove part of the sputum in the carbon dioxide gas flow.

[0012] Optionally, the axis of the third connecting pipe is perpendicular to the axis of the first connecting pipe, and the third connecting pipe and the second connecting pipe are arranged in a Z-axis direction. In this embodiment, by arranging the second connecting pipe and the third connecting pipe in a vertically staggered structure, the sputum in the gas flow can be better collected to the bottom of the sputum cup under the action of gravity, and will not be sucked into the exhalation pipeline, thereby avoiding that the sputum pollutes the pipeline or the breathing machine. In addition, the breathing machine is not the focus of this application, and the structure and principle of the breathing machine belong to the public common knowledge in the technical field, which will not be described here.

[0013] Optionally, a connecting port is formed at the communication position of the first connecting pipe and the third connecting pipe, a baffle matched with the connecting port is arranged in the first connecting pipe, and the baffle is used for separating the sputum in the gas flow.

[0014] One end of the baffle is close to the side of the first connecting pipe opposite to the connecting port, and the other end of the baffle is close to the connecting port and leaves a gap with the inner wall of the first connecting pipe. In this embodiment, the baffle is arranged in the first connecting pipe in an inclined manner, and when the gas flow in the third connecting pipe enters the first connecting pipe, the gas flow is collided on the baffle due to inertia. The inclined arrangement of the baffle can better remove the sputum in the gas flow.

[0015] Optionally, the breathing tubing with sputum collection function further includes multiple sputum-dispersing components, which are arranged at intervals on the side of the baffle facing the connection port. In this embodiment, the sputum-dispersing components are preferably protruding structures, which facilitates the dispersing of thick sputum, allows it to flow easily, and thus prevents sputum from adhering to the baffle and becoming ineffective.

[0016] Optionally, the breathing tubing with sputum collection function further includes a sleeve, one end of which has a side plate extending axially. A baffle is disposed on the side plate, and the two enclose a flow channel, which communicates with the sleeve. The first connecting tube is sleeved on the outer periphery of the sleeve and the side plate. In this embodiment, the sputum separated by the baffle flows along the flow channel and the sleeve into the sputum collection cup. By placing the baffle on the sleeve, it is easier to install the baffle in the first connecting tube. In this embodiment, a dispersing element is also provided on the side plate, which further facilitates the flow of sputum.

[0017] Optionally, the sputum collection cup includes an upper shell and a lower shell, the upper shell covering the lower shell to form the receiving cavity, and the connector being disposed in the upper shell. In this embodiment, the upper shell and the lower shell are preferably threaded together, and a washer is provided between the upper shell and the lower shell.

[0018] According to the sputum collection tubing of this embodiment, the inspiratory tube is connected to the inspiratory valve of the ventilator, and the expiratory tube is connected to the expiratory valve of the ventilator. When the patient inhales, the expiratory valve of the ventilator closes, and the air-oxygen mixture output by the ventilator passes sequentially through the inspiratory tube, the second connecting tube, the first connecting tube, the third connecting tube, and the breathing mask to the patient's breathing end. When the patient exhales, the inspiratory valve of the ventilator closes, and the suction turbine at the expiratory valve of the ventilator starts, creating a negative pressure between the patient's end, the breathing mask, the adapter, and the expiratory tube. Under the action of the negative pressure, the carbon dioxide exhaled by the patient passes sequentially through the breathing mask, the third connecting tube, the first connecting tube, the second connecting tube, and the expiratory tube and is discharged. In this embodiment, when the sputum collection cup is axially symmetrical, the axial direction of the sputum collection cup coincides with the Z-axis direction. When the patient's exhaled carbon dioxide gas contains sputum, the sputum enters the third connecting tube through the breathing mask and is propelled by the carbon dioxide airflow to the side wall opposite the connection opening between the first and third connecting tubes. In this embodiment, by setting the angle between the axis of the first connecting tube and the Z-axis to be less than 90°, the side wall of the first connecting tube performs gas-liquid separation. That is, when the carbon dioxide airflow containing sputum reaches the inner wall of the first connecting tube, the sputum flows into the sputum collection cup under the influence of gravity, and the carbon dioxide airflow is discharged through the second connecting tube, which can prevent sputum from entering the ventilator along the breathing tubing, thus avoiding contamination of the ventilator. Of course, this device can still be used when the patient's exhaled carbon dioxide does not contain sputum. When using a normal breathing tubing, the sputum collection cup can be used as a water collection cup. Compared with a water collection cup, the sputum collection cup of this device is larger and can hold more water, reducing the frequency of water emptying by nurses. This device can be used as a regular breathing tube or a sputum expectoration tube, achieving multiple uses and greatly reducing medical costs for hospitals and patients in clinical practice.

[0019] On the other hand, embodiments of the present invention provide a breathing tubing with sputum collection function, including a sputum collection cup, a breathing mask, a connector, a three-way tube, an inhalation tube and an exhalation tube, wherein the sputum collection cup has an internal accommodating cavity;

[0020] The connector includes a first connecting tube, a second connecting tube, and a third connecting tube. The first connecting tube and the second connecting tube are interconnected. The first connecting tube is installed on the sputum cup and communicates with the receiving cavity. The three-way tube has a third port, a fourth port, and a fifth port. The three-way tube communicates with the second connecting tube through the third port, with the inspiratory tube through the fourth port, and with the expiratory tube through the fifth port.

[0021] The third connecting tube is disposed on the outer peripheral surface of the first connecting tube, and the third connecting tube connects the breathing mask and the first connecting tube.

[0022] When the sputum collection cup is placed horizontally, the angle between the axis of the first connecting tube and the Z-axis is greater than or equal to 0°, and the angle between the axis of the first connecting tube and the Z-axis is less than 90°.

[0023] According to the sputum collection tubing of this embodiment, the inspiratory tube is connected to the inspiratory valve of the ventilator, and the expiratory tube is connected to the expiratory valve of the ventilator. When the patient inhales, the expiratory valve of the ventilator closes, and the air-oxygen mixture output by the ventilator passes sequentially through the inspiratory tube, three-way valve, second connecting tube, first connecting tube, third connecting tube, and breathing mask to the patient's breathing end. When the patient exhales, the inspiratory valve of the ventilator closes, and the suction turbine at the expiratory valve of the ventilator starts, creating a negative pressure between the patient's end, breathing mask, adapter, three-way valve, and expiratory tube. Under the action of negative pressure, the carbon dioxide exhaled by the patient passes sequentially through the breathing mask, third connecting tube, first connecting tube, second connecting tube, three-way valve, and expiratory tube and is discharged. In this embodiment, when the sputum collection cup is axially symmetrical, the axial direction of the sputum collection cup coincides with the Z-axis direction. When the patient's exhaled carbon dioxide gas contains sputum, the sputum passes through the breathing mask into the third connecting tube. Driven by the carbon dioxide airflow, it is pushed onto the side wall opposite the connection opening between the first and third connecting tubes. In this embodiment, by setting the angle between the axis of the first connecting tube and the Z-axis to be less than 90°, the side wall of the first connecting tube performs gas-liquid separation. That is, when the carbon dioxide airflow containing sputum reaches the inner wall of the first connecting tube, the sputum flows into the sputum collection cup under gravity, and the carbon dioxide airflow is discharged through the second connecting tube. This prevents sputum from entering the ventilator along the breathing tubing, thus avoiding contamination of the ventilator. Of course, this device can still be used when the patient's exhaled carbon dioxide does not contain sputum. In other words, this device can be used as both a regular breathing tubing and a sputum expectoration tubing, achieving multiple uses and significantly reducing medical costs for hospitals and patients. Compared with the above embodiments, instead of providing two ports at the end of the second adapter pipe away from the first connecting pipe, this embodiment introduces a three-way pipe, which can increase the ease of installation of the device, increase the applicable occasions of the device, and increase the portability of the device.

[0024] On the other hand, embodiments of the present invention provide a breathing device, including the above-described breathing tubing with sputum collection function. Attached Figure Description

[0025] Figure 1 This is a first-view structural schematic diagram of a breathing tubing with sputum collection function provided in an embodiment of the present invention;

[0026] Figure 2This is a second-view structural schematic diagram of a breathing tubing with sputum collection function provided in an embodiment of the present invention;

[0027] Figure 3 This is an exploded view of a breathing tubing with sputum collection function provided in an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of a breathing tubing with sputum collection function provided in another embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the internal structure of a connecting pipe for a breathing tubing with sputum collection function provided in an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram showing the connection relationship between the connector of the breathing tubing with sputum collection function and the sputum collection cup according to an embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram showing the connection relationship between the connector of the breathing tubing with sputum collection function and the sputum collection cup according to another embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the connection relationship between the baffle, side plate and sleeve of a breathing tubing with sputum collection function provided in another embodiment of the present invention.

[0033] The reference numerals in the accompanying drawings are as follows:

[0034] 1. Sputum cup; 2. Breathing mask; 3. Connector; 4. Inspiratory tube; 5. Expiratory tube; 6. Receptacle; 7. Third connecting tube; 8. Adaptor tube; 9. Transition tube; 10. T-connector; 12. Baffle; 13. Disassembled parts; 14. Sleeve; 15. Side plate; 17. Flow channel; 18. Upper shell; 19. Lower shell; 31. First connecting tube; 32. Second connecting tube; 81. Corrugated structure; 82. Smooth structure. Detailed Implementation

[0035] To make the technical problems solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0036] Example 1

[0037] like Figure 4 and Figure 6 As shown, an embodiment of the present invention provides a breathing tubing with sputum collection function, including a sputum collection cup 1, a breathing mask 2, a connector 3, an inspiratory tube 4 and an expiratory tube 5, and the sputum collection cup 1 has a receiving cavity 6 inside;

[0038] The connector 3 includes a first connecting tube 31, a second connecting tube 32 and a third connecting tube 7. The first connecting tube 31 and the second connecting tube 32 are interconnected. The first connecting tube 31 is installed on the sputum cup 1 and is connected to the receiving cavity 6. The end of the second connecting tube 32 away from the first connecting tube 31 has a first opening and a second opening. The second connecting tube 32 is connected to the inhalation tube 4 through the first opening and to the expiratory tube through the second opening.

[0039] The third connecting tube 7 is disposed on the outer peripheral surface of the first connecting tube 31, and the third connecting tube 7 connects the breathing mask 2 and the first connecting tube 31.

[0040] When the sputum collection cup is placed horizontally, the angle between the axis of the first connecting tube 31 and the Z-axis is greater than or equal to 0°, and the angle between the axis of the first connecting tube 31 and the Z-axis is less than 90°.

[0041] The breathing tubing with sputum collection function also includes an adapter 8, which is connected between the breathing mask 2 and the third connecting tube 7.

[0042] The outer wall of the adapter tube 8 is provided with a corrugated structure 81, allowing the adapter tube 8 to be bent. The inner wall of the adapter tube 8 is provided with a smooth structure 82 to reduce resistance to sputum flow. In this embodiment, by setting the adapter tube 8 to have a corrugated outer wall and a smooth inner wall, compared with ordinary pipes, the adapter tube 8 in this application can achieve a lower coefficient of frictional resistance due to its smooth internal design while ensuring flexibility, thus facilitating sputum flow. In this embodiment, the adapter tube 8 can be an integral tube with a corrugated outer wall structure 81 and a smooth inner wall structure 82, or it can be a corrugated tube fitted over a smooth tube to form a combined tube. The smooth structure 82 or the smooth tube in this embodiment is contractile and is made of flexible or elastic material.

[0043] like Figure 5 As shown, the breathing tubing with sputum collection function also includes a transition tube 9, which connects the first connecting tube 31 and the second connecting tube 32. The axis of the first connecting tube 31 is perpendicular to the axis of the second connecting tube 32. In this embodiment, after the airflow carrying sputum from the third connecting tube 7 enters the first connecting tube 31, a portion of the sputum in the carbon dioxide airflow can be removed by the action of the inner wall of the first connecting tube 31. Then, the airflow in the first connecting tube 31 enters the transition tube 9. By setting the axis of the first connecting tube 31 and the axis of the second connecting tube 32 to be perpendicular to each other, the airflow entering the transition tube 9 from the first connecting tube 31 will rush to the inner wall of the transition tube 9, allowing the transition tube 9 to further remove a portion of the sputum in the carbon dioxide airflow.

[0044] In this embodiment, the axis of the third connecting pipe 7 is perpendicular to the axis of the first connecting pipe 31, and the third connecting pipe 7 and the second connecting pipe 32 are arranged at intervals along the Z-axis. By setting the second connecting pipe 32 and the third connecting pipe 7 in a staggered manner, sputum in the airflow can be better collected to the bottom of the sputum collection cup 1 under the action of gravity, preventing it from being drawn into the expiratory tube 5, thus avoiding contamination of the tubing or the ventilator by sputum. Furthermore, the ventilator is not the focus of this application; the structure and principle of the ventilator are common knowledge in this technical field and will not be elaborated here.

[0045] In addition, such as Figure 7 As shown, a connection port is formed at the connection between the first connecting pipe 31 and the third connecting pipe 7. A baffle 12 matching the connection port is provided in the first connecting pipe 31. The baffle 12 is used to separate sputum in the airflow.

[0046] One end of the baffle 12 is close to the side of the first connecting pipe 31 opposite to the connection port, and the other end is close to the connection port with a gap between it and the inner wall of the first connecting pipe 31. In this embodiment, the baffle 12 is inclined in the first connecting pipe 31. When the airflow in the third connecting pipe 7 enters the first connecting pipe 31, it rushes onto the baffle 12 due to inertia. The inclined arrangement of the baffle 12 can better remove sputum in the airflow.

[0047] The breathing tubing with sputum collection function also includes multiple sputum-dispersing components 13, which are arranged at intervals on the side of the baffle 12 facing the connection port. In this embodiment, the sputum-dispersing components 13 are preferably protruding structures, which helps to disperse thick sputum, facilitates the flow of thick sputum, and thus prevents sputum from adhering to the baffle 12 and becoming ineffective.

[0048] In addition, such as Figure 8 As shown, the breathing tubing with sputum collection function also includes a sleeve 14. One end of the sleeve 14 extends axially with a side plate 15. A baffle 12 is disposed on the side plate 15, and the two enclose a flow channel 17, which communicates with the sleeve 14. The first connecting pipe 31 is sleeved on the outer periphery of the sleeve 14 and the side plate 15. In this embodiment, the sputum separated by the baffle 12 flows along the flow channel 17 and the sleeve 14 into the sputum collection cup 1. By placing the baffle 12 on the sleeve 14, it is easy to install the baffle 12 in the first connecting pipe 31. In this embodiment, a dispersing element 13 is also provided on the side plate 15, which further facilitates the flow of sputum.

[0049] In addition, the sputum collection cup 1 includes an upper shell 18 and a lower shell 19. The upper shell 18 covers the lower shell 19 and forms a receiving cavity 6. The connector 3 is disposed in the upper shell 18. In this embodiment, the upper shell 18 and the lower shell 19 are preferably threadedly connected, and a washer is provided between the upper shell 18 and the lower shell 19.

[0050] According to the sputum collection tubing of this embodiment, the inspiratory tube 4 is connected to the inspiratory valve of the ventilator, and the expiratory tube is connected to the expiratory valve of the ventilator. When the patient inhales, the expiratory valve of the ventilator closes, and the air-oxygen mixture output by the ventilator passes sequentially through the inspiratory tube 4, the second connecting tube 32, the first connecting tube 31, the third connecting tube 7, and the breathing mask 2 to the patient's breathing end. When the patient exhales, the inspiratory valve of the ventilator closes, and the suction turbine at the expiratory valve of the ventilator starts, creating a negative pressure between the patient's end, the breathing mask 2, the adapter, and the expiratory tube. Under the action of the negative pressure, the carbon dioxide exhaled by the patient passes sequentially through the breathing mask 2, the third connecting tube 7, the first connecting tube 31, the second connecting tube 32, and the expiratory tube to be discharged. In this embodiment, when the sputum collection cup 1 is axially symmetrical, the axial direction of the sputum collection cup 1 coincides with the Z-axis direction. When the patient's exhaled carbon dioxide gas contains sputum, the sputum enters the third connecting tube 7 through the breathing mask 2. Driven by the carbon dioxide airflow, it flows to the side wall of the first connecting tube 31 opposite to the connection opening between the third connecting tube 7 and the first connecting tube 31. In this embodiment, by setting the angle between the axis of the first connecting tube 31 and the Z-axis to be less than 90°, the side wall of the first connecting tube 31 functions as a gas-liquid separator. That is, when the carbon dioxide airflow containing sputum reaches the inner wall of the first connecting tube 31, the sputum flows into the sputum collection cup 1 under gravity, and the carbon dioxide airflow is discharged through the second connecting tube 32. This prevents sputum from entering the ventilator along the breathing tubing, thus avoiding contamination of the ventilator. Of course, this device can still be used when the patient's exhaled carbon dioxide does not contain sputum. When using a normal breathing tubing, the sputum collection cup 1 can be used as a water collection cup. Compared to a water collection cup, the sputum collection cup 1 of this device is larger and can hold more water, reducing the frequency of water emptying by nurses. This device can be used as a regular breathing tube or a sputum expectoration tube, achieving multiple uses and greatly reducing medical costs for hospitals and patients in clinical practice.

[0051] Example 2

[0052] like Figures 1 to 3 An embodiment of the present invention provides a breathing tubing with sputum collection function, including a sputum collection cup 1, a breathing mask 2, a connector 3, a three-way tube 10, an inhalation tube 4 and an exhalation tube 5, wherein the sputum collection cup 1 has a receiving cavity 6 inside;

[0053] The connector 3 includes a first connecting tube 31, a second connecting tube 32 and a third connecting tube 7. The first connecting tube 31 and the second connecting tube 32 are interconnected. The first connecting tube 31 is installed on the sputum cup 1 and is connected to the receiving cavity 6. The three-way tube 10 has a third port, a fourth port and a fifth port. The three-way tube 10 is connected to the second connecting tube 32 through the third port, the three-way tube 10 is connected to the inhalation tube 4 through the fourth port, and the three-way tube 10 is connected to the expiratory tube through the fifth port.

[0054] The third connecting tube 7 is disposed on the outer peripheral surface of the first connecting tube 31, and the third connecting tube 7 connects the breathing mask 2 and the first connecting tube 31.

[0055] When the sputum collection cup is placed horizontally, the angle between the axis of the first connecting tube 31 and the Z-axis is greater than or equal to 0°, and the angle between the axis of the first connecting tube 31 and the Z-axis is less than 90°.

[0056] Optionally, the breathing tubing with sputum collection function also includes an adapter 8, which is connected between the breathing mask 2 and the third connecting tube 7;

[0057] The outer wall of the adapter tube 8 is provided with a corrugated structure 81, allowing the adapter tube 8 to be bent. The inner wall of the adapter tube 8 is provided with a smooth structure 82 to reduce resistance to sputum flow. In this embodiment, by setting the adapter tube 8 to have a corrugated outer wall and a smooth inner wall, compared with ordinary pipes, the adapter tube 8 in this application can achieve a lower coefficient of frictional resistance due to its smooth internal design while ensuring flexibility, thus facilitating sputum flow. In this embodiment, the adapter tube 8 can be an integral tube with a corrugated outer wall structure 81 and a smooth inner wall structure 82, or it can be a corrugated tube fitted over a smooth tube to form a combined tube. The smooth structure 82 or the smooth tube in this embodiment is contractile and is made of flexible or elastic material.

[0058] The breathing tubing with sputum collection function also includes a transition tube 9, which connects the first connecting tube 31 and the second connecting tube 32. The axis of the first connecting tube 31 is perpendicular to the axis of the second connecting tube 32. In this embodiment, after the airflow carrying sputum from the third connecting tube 7 enters the first connecting tube 31, a portion of the sputum in the carbon dioxide airflow can be removed by the action of the inner wall of the first connecting tube 31. Then, the airflow in the first connecting tube 31 enters the transition tube 9. By setting the axis of the first connecting tube 31 and the axis of the second connecting tube 32 to be perpendicular to each other, the airflow entering the transition tube 9 from the first connecting tube 31 will rush to the inner wall of the transition tube 9, allowing the transition tube 9 to further remove a portion of the sputum in the carbon dioxide airflow.

[0059] Furthermore, the axis of the third connecting pipe 7 is perpendicular to the axis of the first connecting pipe 31, and the third connecting pipe 7 and the second connecting pipe 32 are arranged at intervals along the Z-axis. In this embodiment, by setting the second connecting pipe 32 and the third connecting pipe 7 in a staggered manner, the sputum in the airflow can be better collected to the bottom of the sputum collection cup 1 under the action of gravity, and will not be drawn into the expiratory tube 5, thereby avoiding sputum contamination of the tubing or the ventilator. In addition, the ventilator is not the focus of this application, and the structure and principle of the ventilator are common knowledge in this technical field, and will not be described in detail here.

[0060] The first connecting pipe 31 and the third connecting pipe 7 are connected to form a connection port. The first connecting pipe 31 is provided with a baffle 12 that matches the connection port. The baffle 12 is used to separate sputum in the airflow.

[0061] One end of the baffle 12 is close to the side of the first connecting pipe 31 opposite to the connection port, and the other end is close to the connection port with a gap between it and the inner wall of the first connecting pipe 31. In this embodiment, the baffle 12 is inclined in the first connecting pipe 31. When the airflow in the third connecting pipe 7 enters the first connecting pipe 31, it rushes onto the baffle 12 due to inertia. The inclined arrangement of the baffle 12 can better remove sputum in the airflow.

[0062] In addition, the breathing tubing with sputum collection function also includes multiple sputum-dispersing components 13, which are arranged at intervals on the side of the baffle 12 facing the connection port. In this embodiment, the sputum-dispersing components 13 are preferably protruding structures, which are beneficial for dispersing thick sputum and making it easier for the thick sputum to flow, thereby preventing sputum from adhering to the baffle 12 and becoming ineffective.

[0063] The breathing tubing with sputum collection function also includes a sleeve 14. One end of the sleeve 14 has a side plate 15 extending axially. A baffle 12 is disposed on the side plate 15, and the two together enclose a flow channel 17, which communicates with the sleeve 14. A first connecting pipe 31 is sleeved on the outer periphery of the sleeve 14 and the side plate 15. In this embodiment, the sputum separated by the baffle 12 flows along the flow channel 17 and the sleeve 14 into the sputum collection cup 1. By placing the baffle 12 on the sleeve 14, it is easy to install the baffle 12 in the first connecting pipe 31.

[0064] In addition, the sputum collection cup 1 includes an upper shell 18 and a lower shell 19. The upper shell 18 covers the lower shell 19 and forms a receiving cavity 6. The connector 3 is disposed in the upper shell 18. In this embodiment, the upper shell 18 and the lower shell 19 are preferably threadedly connected, and a washer is provided between the upper shell 18 and the lower shell 19.

[0065] According to the sputum collection tubing of this embodiment, the inspiratory tube 4 is connected to the inspiratory valve of the ventilator, and the expiratory tube is connected to the expiratory valve of the ventilator. When the patient inhales, the expiratory valve of the ventilator closes, and the air-oxygen mixture output by the ventilator passes sequentially through the inspiratory tube 4, the three-way valve 10, the second connecting tube 32, the first connecting tube 31, the third connecting tube 7, and the breathing mask 2 to the patient's breathing end. When the patient exhales, the inspiratory valve of the ventilator closes, and the suction turbine at the expiratory valve of the ventilator starts, creating a negative pressure between the patient's end, the breathing mask 2, the adapter, the three-way valve 10, and the expiratory tube. Under the action of the negative pressure, the carbon dioxide exhaled by the patient passes sequentially through the breathing mask 2, the third connecting tube 7, the first connecting tube 31, the second connecting tube 32, the three-way valve 10, and the expiratory tube to be discharged. In this embodiment, when the sputum collection cup 1 is axially symmetrical, the axial direction of the sputum collection cup 1 is the Z-axis direction. When the patient's exhaled carbon dioxide gas contains sputum, the sputum enters the third connecting tube 7 through the breathing mask 2. Driven by the carbon dioxide airflow, it is pushed onto the side wall of the first connecting tube 31 opposite to the connection opening between the third connecting tube 7 and the first connecting tube 31. In this embodiment, by setting the angle between the axis of the first connecting tube 31 and the Z-axis to be less than 90°, the side wall of the first connecting tube 31 performs gas-liquid separation. That is, when the carbon dioxide airflow containing sputum reaches the inner wall of the first connecting tube 31, the sputum flows into the sputum collection cup 1 under gravity, and the carbon dioxide airflow is discharged through the second connecting tube 32. This prevents sputum from entering the ventilator along the breathing tubing, thus avoiding contamination of the ventilator. Of course, this device can still be used when the patient's exhaled carbon dioxide does not contain sputum. In other words, this device can be used as a regular breathing tubing or a sputum expectoration tubing, achieving multiple uses and significantly reducing medical costs for hospitals and patients. Compared with the above embodiments, instead of providing two ports at the end of the second adapter pipe 8 that is away from the first connecting pipe 31, this embodiment introduces a three-way pipe 10, which can increase the ease of installation of the device, increase the applicable occasions of the device, and increase the portability of the device.

[0066] Example 3

[0067] One embodiment of the present invention provides a breathing device, including the breathing tubing with sputum collection function described in the above embodiment.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A breathing tubing with sputum collection function, characterized in that, It includes a sputum collection cup, a breathing mask, a connector, an inhalation tube, and an exhalation tube, wherein the sputum collection cup has an internal accommodating cavity; The connector includes a first connecting tube, a second connecting tube, and a third connecting tube. The first connecting tube and the second connecting tube are in communication with each other. The first connecting tube is installed on the sputum cup and communicates with the receiving cavity. The end of the second connecting tube away from the first connecting tube has a first opening and a second opening. The second connecting tube communicates with the inhalation tube through the first opening and with the expiratory tube through the second opening. The third connecting tube is disposed on the outer peripheral surface of the first connecting tube, and the third connecting tube connects the breathing mask and the first connecting tube. When the sputum collection cup is placed horizontally, the angle between the axis of the first connecting tube and the Z-axis is greater than or equal to 0°, and the angle between the axis of the first connecting tube and the Z-axis is less than 90°. It also includes a transition pipe, which connects the first connecting pipe and the second connecting pipe, wherein the axis of the first connecting pipe is perpendicular to the axis of the second connecting pipe; A connection port is formed at the junction of the first connecting pipe and the third connecting pipe. A baffle matching the connection port is provided in the first connecting pipe. The baffle is used to separate sputum in the airflow. One end of the baffle is close to the side of the first connecting pipe opposite to the connection port, and the other end is close to the connection port and has a gap with the inner wall of the first connecting pipe. It also includes a sleeve, one end of which has a side plate extending along its axial direction, a baffle is disposed on the side plate, and the two enclose a flow channel, the flow channel being in communication with the sleeve, and the first connecting pipe being sleeved on the outer periphery of the sleeve and the side plate; It also includes multiple dispersing components for dispersing sputum, which are arranged at intervals on the side of the baffle facing the connection port.

2. The breathing tubing with sputum collection function according to claim 1, characterized in that, It also includes an adapter tube, which connects the breathing mask to the third connecting tube; The outer wall of the adapter pipe has a corrugated structure, and the adapter pipe can be bent through the corrugated structure; the inner wall of the adapter pipe has a flexible smooth structure.

3. The breathing tubing with sputum collection function according to claim 1, characterized in that, The axis of the third connecting pipe is perpendicular to the axis of the first connecting pipe, and the third connecting pipe and the second connecting pipe are arranged at intervals along the Z-axis direction.

4. The breathing tubing with sputum collection function according to claim 1, characterized in that, The sputum collection cup includes an upper shell and a lower shell. The upper shell covers the lower shell and forms the receiving cavity. The connector is located in the upper shell.

5. A breathing device, characterized in that, The respiratory tubing with sputum collection function as described in any one of claims 1-4.

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