Closed sputum suction tube

Abstract

The utility model discloses a closed sputum suction tube, including joint subassembly and sputum suction hose, joint subassembly includes flushing cavity, breathing cavity and sputum collection cavity, breathing cavity is equipped with breathing machine joint for connecting breathing machine pipeline, sputum collection cavity is equipped with the intubation joint for connecting trachea intubation, the sputum suction hose is equipped with the flushing cavity, and the flushing cavity is equipped with the flushing cavity and the sputum collection cavity. The flushing cavity is provided with a first flushing pipe; the sputum suction hose can penetrate through the flushing cavity, the breathing cavity and the sputum collecting cavity to enter the respiratory tract of a patient to suck sputum. The sputum suction hose comprises a sputum suction end and a negative pressure access end, the sputum suction end is used for sucking sputum, and the negative pressure access end is used for being connected with a negative pressure pipeline; the sputum collecting cavity is further provided with a second flushing pipe and a drainage pipe. By adopting the sputum aspirator, sputum coughed by a patient can be collected, the inner wall and the outer wall of the sputum aspiration hose are convenient to clean, the treatment efficiency is improved, and the treatment safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a closed sputum suction tube. Background Art

[0002] Clinically, for patients who are unable to expectorate or have difficulty breathing due to coughing, artificial sputum suction is required to clear respiratory secretions and keep the airway open. Nursing staff can use the suction effect of negative pressure to suck out sputum and aspirated materials in the trachea through the suction tube. The closed suction tube can be connected to the ventilator and endotracheal tube, so that the patient can continue to use the ventilator to maintain the necessary positive airway pressure and therapeutic oxygen concentration during the suction process.

[0003] When receiving endotracheal intubation, the patient may experience choking and coughing, and the coughed-up sputum may enter the breathing tube connected to the intubation tube, or adhere to the inner wall of the breathing tube. Medical staff need to suction the sputum in time, otherwise the sputum reflux may cause the patient's airway to be blocked, causing the risk of hypoxia or suffocation. The time of the patient's choking is uncertain. In order to detect and deal with the patient's choking in time, the nursing staff needs to be beside the patient at all times to monitor the patient's condition, which increases the work pressure of the nursing staff and aggravates the tension of medical care resources.

[0004] In addition, the closed suction tube currently used in clinical practice can be retracted after suctioning, and the inside of the suction tube can be flushed by injecting flushing fluid. However, during use, some sputum will adhere to the outer wall of the suction tube, and the outer wall of the suction tube cannot be cleaned. The sputum remaining on the outer wall of the suction tube is also easy to stick to the protective cover of the suction tube, forming sputum scab, causing bacterial growth, reducing medical safety, and affecting the service life of the suction tube.

[0005] Therefore, an object of the present invention is to provide a closed sputum suction tube that can at least partially solve the above-mentioned problems. Utility Model Content

[0006] The technical problem to be solved by the embodiments of the utility model is to provide a closed sputum suction tube, which can collect sputum coughed up temporarily by patients and / or facilitate the cleaning of the inner and outer walls of the sputum suction hose.

[0007] In order to solve the above technical problems, the embodiment of the utility model provides a closed sputum suction tube, including a joint assembly and a sputum suction hose, the joint assembly includes a flushing cavity, a breathing cavity and a sputum collecting cavity, the breathing cavity is provided with a ventilator connector for connecting a ventilator pipeline, the sputum collecting cavity is provided with a cannula connector for connecting an endotracheal cannula, and the flushing cavity is provided with a first flushing tube;

[0008] The sputum suction hose can pass through the flushing cavity, the breathing cavity and the sputum collecting cavity, and enter the patient's respiratory tract to absorb sputum;

[0009] The sputum suction hose comprises a sputum suction end and a negative pressure access end, wherein the sputum suction end is used for sputum suction, and the negative pressure access end is used for connecting a negative pressure pipeline;

[0010] The sputum collecting cavity is also provided with a second flushing tube and a drainage tube.

[0011] As an improvement of the above solution, an isolation valve is provided between the flushing cavity and the breathing cavity. Specifically, the isolation valve is used to control the communication between the flushing cavity and the breathing cavity.

[0012] As an improvement of the above solution, the negative pressure access end is provided with a control valve for controlling the opening and closing of the negative pressure pipeline.

[0013] As an improvement of the above solution, one end of the drainage tube is connected to the sputum collecting cavity, and the other end is connected to the sputum suction hose;

[0014] Preferably, the connection point between the drainage tube and the sputum suction hose is located between the control valve and the sputum suction end.

[0015] As an improvement of the above solution, the outer side of the sputum suction hose is covered with a transparent protective cover;

[0016] The sputum suction hose is provided with a limit mark or a length mark for indicating the insertion depth, so that the insertion depth of the sputum suction hose can be judged by observing the limit mark and the length mark on the sputum suction hose;

[0017] The breathing cavity is also provided with a drug delivery tube for delivering drugs to the patient's respiratory tract;

[0018] The drainage tube is provided with a valve or a tube clamp for opening or closing the drainage tube.

[0019] As an improvement of the above solution, a guide tube corresponding to the insertion tube connector is provided at the connection point between the breathing cavity and the sputum collecting cavity, and the diameter of the guide tube gradually decreases along the direction in which the sputum suction hose is inserted into the insertion tube connector.

[0020] As an improvement of the above solution, a flushing baffle corresponding to the second flushing tube is provided in the sputum collecting cavity to prevent the flushing liquid injected from the second flushing tube from entering the intubation connector.

[0021] As an improvement of the above solution, the flushing baffle is V-shaped or arc-shaped, and is used to guide the flushing liquid injected from the second flushing tube to the inner wall of the sputum collecting cavity.

[0022] As an improvement of the above solution, a retaining ring is provided at the connection point between the sputum collecting cavity and the cannula connector to prevent the cleaning liquid injected from the second flushing tube from flowing into the cannula connector along the inner wall of the sputum collecting cavity.

[0023] As an improvement of the above solution, a diversion cavity is provided in the sputum collecting cavity, and the diversion cavity is connected to the second flushing tube;

[0024] In the radial direction of the sputum collecting cavity, a plurality of flushing holes are opened on both sides of the diversion cavity for flushing the inner wall of the sputum collecting cavity and the sputum suction hose.

[0025] The implementation of this utility model has the following beneficial effects:

[0026] The utility model discloses a closed sputum suction tube, comprising a joint assembly and a sputum suction hose, wherein the joint assembly comprises a flushing cavity, a breathing cavity and a sputum collecting cavity.

[0027] The setting of the sputum collecting cavity can effectively collect a small amount of sputum coughed up by the patient, thereby reducing the risk of choking and coughing of the patient when there is no one to take care of him / her temporarily, and the risk of the sputum coughed up flowing back and blocking the endotracheal tube.

[0028] Moreover, the flushing cavity and the sputum collecting cavity are respectively connected to the first flushing tube and the second flushing tube to thoroughly clean the sputum suction hose.

[0029] The sputum collecting cavity is provided with a drainage tube for extracting sputum to discharge the accumulated fluid in the sputum collecting cavity. At the same time, the provision of the second flushing tube can also clean the sputum collecting cavity to reduce the growth of bacteria, thereby improving the safety of treatment and extending the service life of the sputum suction tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional structural schematic diagram of the first embodiment of the closed sputum suction tube of the utility model;

[0031] Figure 2 It is a schematic cross-sectional view of the joint assembly of the first embodiment of the closed sputum suction tube of the utility model;

[0032] Figure 3 It is a cross-sectional structural schematic diagram of a joint assembly of a second embodiment of the closed sputum suction tube of the utility model;

[0033] Figure 4 It is a schematic cross-sectional view of the joint assembly of the third embodiment of the closed sputum suction tube of the utility model. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0035] See also Figure 1 , 2, which is the first implementation case of the utility model, provides a closed sputum suction tube, including a joint assembly 1 and a sputum suction hose 2, wherein the joint assembly 1 includes a flushing cavity 11, a breathing cavity 12, and a sputum collection cavity 13 for temporarily collecting expectorated sputum, and the sputum suction hose 2 passes through the flushing cavity 11, the breathing cavity 12, and the sputum collection cavity 13 in sequence, and then enters the patient's respiratory tract through an endotracheal tube to absorb sputum;

[0036] The flushing cavity 11 and the sputum collecting cavity 13 are respectively connected to a first flushing tube 3 and a second flushing tube 4 for cleaning. The sputum collecting cavity 13 is provided with a drainage tube 5 for discharging the accumulated fluid in the sputum collecting cavity 13 .

[0037] The breathing cavity 12 is provided with a ventilator connector 122 for connecting a ventilator pipeline, and the sputum collecting cavity 13 is provided with a cannula connector 123 for connecting an endotracheal cannula. The first flushing tube 3 is used to inject a cleaning liquid to clean the inner wall of the sputum suction hose 2. The second flushing tube 4 is used to inject a cleaning liquid to flush the sputum collecting cavity 13. Preferably, the second flushing tube 4 is also used to inject a cleaning liquid to flush the outer wall of the sputum suction hose 2. The first flushing tube 3 and the second flushing tube 4 may be provided with a protective cap and / or a one-way valve.

[0038] Specifically, an isolation valve 6 is provided between the flushing cavity 11 and the breathing cavity 12 to control the communication between the flushing cavity 11 and the breathing cavity 12. That is, the isolation valve 6 can be used to open or close the passage between the flushing cavity 11 and the breathing cavity 12. When the isolation valve 6 is in an open state, the sputum suction hose 2 can extend into and pass through the breathing cavity 12. When the isolation valve 6 is in a closed state, the flushing cavity 11 is not connected to the breathing cavity 12, and the cleaning liquid is injected through the first flushing tube 3, and the cleaning liquid is sucked by negative pressure at the same time, so that the inner wall of the sputum suction hose can be cleaned. Specifically, the isolation valve 6 can be a stopcock, and the stopcock is provided with a hose through hole for the sputum suction hose 2 to pass through.

[0039] The outer side of the sputum suction hose 2 is covered with a transparent protective cover 7 for isolating the sputum suction hose 2 from the external environment. Specifically, one end of the transparent protective cover 7 is fixedly and sealedly connected to the flushing cavity 11, and the other end is sealedly connected to the outer wall of the sputum suction hose 2.

[0040] In order to facilitate the operation of medical staff, the sputum suction hose 2 is provided with a limit mark and / or a length mark for indicating the insertion depth, so as to judge the insertion depth of the sputum suction hose 2 through the transparent protective cover 7. The limit mark and the length mark can be realized by drawing, engraving or integrally injection molding with the sputum suction hose.

[0041] In addition, the breathing cavity 12 is also provided with a drug delivery tube 121 for delivering drugs to the patient's respiratory tract. For example, atomization drug delivery can be performed to the patient through the drug delivery tube 121. Preferably, the drug delivery tube is provided with a sealing protective cap.

[0042] The two ends of the sputum suction hose 2 are respectively a sputum suction end 21 and a negative pressure access end 22, wherein the sputum suction end 21 is used to insert the patient's intubation tube to suction sputum, and the negative pressure access end 22 is used to connect the negative pressure pipeline, and the negative pressure access end 22 is provided with a control valve 23 for controlling the opening and closing of the negative pressure pipeline. Therefore, the sputum suction hose 2 can be connected to the negative pressure pipeline through the control valve 23, so that sputum can be sucked from the sputum suction end 21. For example, the control valve 23 can be a pressing valve in the prior art, and the negative pressure airflow is adjusted by the pressing force.

[0043] In order to facilitate the suction work of the drainage tube 5, one end of the drainage tube 5 is connected to the sputum collecting cavity 13, and the other end is connected to the negative pressure access end 22 of the sputum suction hose 2; the connection point between the drainage tube 5 and the sputum suction hose 2 is located between the control valve 23 and the sputum suction end 21. That is, when the control valve 23 is opened, the drainage tube 5 and the sputum suction end 21 can both be in a suction state, so as to facilitate the discharge of the liquid in the sputum collecting cavity 13. Preferably, the drainage tube 5 is provided with a valve or a tube clamp 51, so that medical staff can use it to close the drainage tube 5, thereby stopping the suction work of the drainage tube 5.

[0044] Intubation connector Figure 2 As shown, in order to facilitate the user to insert the suction hose 2 into the cannula joint 123, a guide tube 14 corresponding to the cannula joint 1 is provided at the connection between the breathing cavity 12 and the sputum collecting cavity 13. Along the direction of inserting the suction hose 2 into the cannula joint 123, the diameter of the guide tube 14 gradually decreases. The suction hose 2 is aligned with the cannula joint 123 through the guide tube 14, so that it is easy to insert into the cannula joint 123.

[0045] In order to prevent the flushing liquid from flowing into the cannula joint 123, a retaining ring 15 is provided at the connection point between the sputum collecting cavity 13 and the cannula joint 123, so as to prevent the cleaning liquid injected from the second flushing tube 4 from flowing down along the inner wall of the sputum collecting cavity 13 and entering the cannula joint 123. Preferably, the retaining ring 15 is trumpet-shaped.

[0046] The closed sputum suction tube of embodiment 1 can effectively collect the sputum coughed up by the patient, prevent the sputum from flowing back into the endotracheal tube, reduce the workload of nursing staff, and improve treatment efficiency; at the same time, the inside and outside of the sputum suction tube can be cleaned after suctioning the sputum, thereby reducing bacterial growth, improving treatment safety, and extending the service life of the sputum suction tube.

[0047] See also Figure 3The utility model also provides a second embodiment, which is different from the first embodiment in that, in order to reduce the impact of the sputum collecting cavity cleaning operation on the patient, a flushing baffle 131 corresponding to the second flushing tube 4 is further provided in the sputum collecting cavity 13, which is used to prevent the flushing liquid injected from the second flushing tube 4 from entering the intubation joint 123.

[0048] The flushing baffle 131 is V-shaped or arc-shaped to guide the flushing liquid injected from the second flushing tube 4 to the inner wall of the sputum collecting cavity 13, thereby preventing the flushing liquid from entering the insertion tube connector 123, and at the same time better guiding the cleaning liquid to clean the inner wall of the sputum collecting cavity 13.

[0049] The closed sputum suction tube of Example 2 can effectively collect the sputum coughed up by the patient, prevent the sputum from flowing back into the endotracheal tube, reduce the workload of nursing staff, and improve treatment efficiency; at the same time, it can prevent the flushing fluid from splashing into the endotracheal tube, improve treatment efficiency, and improve treatment safety.

[0050] See also Figure 4 The utility model also provides a third embodiment, which is different from the first embodiment in that a diversion cavity 16 is provided in the sputum collecting cavity 13, and the diversion cavity 16 is connected to the second flushing tube 4;

[0051] In the radial direction of the sputum collecting cavity 13, a plurality of flushing holes 161 are opened on both the inner and outer sides of the diversion cavity 16, respectively used to flush the inner wall of the sputum collecting cavity 13 and the sputum suction hose 2. Preferably, the diversion cavity 16 is arc-shaped.

[0052] The closed sputum suction tube of Example 3 can effectively collect the sputum coughed up by the patient, prevent the sputum from flowing back into the endotracheal tube, reduce the workload of nursing staff, and improve treatment efficiency; at the same time, after suctioning the sputum, the sputum collecting cavity and the inner and outer sides of the sputum suction tube can be efficiently cleaned to ensure treatment safety, further improve treatment efficiency, and extend the service life of the sputum suction tube.

[0053] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. A closed sputum suction tube, characterized in that: It includes a joint assembly and a sputum suction hose, wherein the joint assembly includes a flushing cavity, a breathing cavity and a sputum collection cavity. The breathing cavity is provided with a ventilator connector for connecting to a ventilator pipeline, the sputum collecting cavity is provided with a cannula connector for connecting to an endotracheal cannula, and the flushing cavity is provided with a first flushing tube; The sputum suction hose can pass through the flushing cavity, the breathing cavity and the sputum collecting cavity, and enter the patient's respiratory tract to absorb sputum; The sputum suction hose comprises a sputum suction end and a negative pressure access end, wherein the sputum suction end is used for sputum suction, and the negative pressure access end is used for connecting a negative pressure pipeline; The sputum collecting cavity is also provided with a second flushing tube and a drainage tube.

2. The closed sputum suction tube according to claim 1, characterized in that: An isolation valve is provided between the flushing cavity and the breathing cavity.

3. The closed sputum suction tube according to claim 1, characterized in that: The negative pressure access end is provided with a control valve for controlling the opening and closing of the negative pressure pipeline.

4. The closed sputum suction tube according to claim 3, characterized in that: One end of the drainage tube is connected to the sputum collecting cavity, and the other end is connected to the sputum suction hose; The connecting point between the drainage tube and the sputum suction hose is located between the control valve and the sputum suction end.

5. The closed sputum suction tube according to claim 1, characterized in that: The outer side of the sputum suction hose is covered with a transparent protective cover; The sputum suction hose is provided with a limit mark or a length mark for indicating the insertion depth; The breathing cavity is also provided with a drug delivery tube for delivering drugs to the patient's respiratory tract; The drainage tube is provided with a valve or a tube clamp.

6. The closed sputum suction tube according to claim 1, characterized in that: A guide tube corresponding to the insertion tube joint is provided at the connection point between the breathing cavity and the sputum collecting cavity, and the diameter of the guide tube gradually decreases along the direction in which the sputum suction hose is inserted into the insertion tube joint.

7. The closed sputum suction tube according to any one of claims 1 to 6, characterized in that: A flushing baffle corresponding to the second flushing tube is provided in the sputum collecting cavity, which is used to prevent the flushing liquid injected from the second flushing tube from entering the intubation joint.

8. The closed sputum suction tube according to claim 7, characterized in that: The flushing baffle is V-shaped or arc-shaped, and is used to guide the flushing liquid to the inner wall of the sputum collecting cavity.

9. The closed sputum suction tube according to any one of claims 1 to 6, characterized in that: A retaining ring is provided at the connection point between the sputum collecting cavity and the cannula joint, which is used to prevent the cleaning liquid injected from the second flushing tube from flowing into the cannula joint along the inner wall of the sputum collecting cavity.

10. The closed sputum suction tube according to any one of claims 1 to 6, characterized in that: A diversion cavity is provided in the sputum collecting cavity, and the diversion cavity is connected with the second flushing tube; In the radial direction of the sputum collecting cavity, a plurality of flushing holes are opened on both sides of the diversion cavity for flushing the inner wall of the sputum collecting cavity and the sputum suction hose.

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