Disposable closed sputum suction tube

Abstract

The utility model relates to a disposable closed sputum suction tube. The sputum suction pipe comprises a negative pressure assembly, a sputum suction pipe body, a three-way pipe fitting and a soft sleeve, the three-way pipe fitting is provided with an insertion opening, a breathing machine connector and an air pipe connector, the sputum suction pipe body is sleeved with the soft sleeve, the two ends of the soft sleeve are connected to the negative pressure assembly and the insertion opening respectively, one end of the sputum suction pipe body is connected with the negative pressure assembly, and the other end of the sputum suction pipe body is connected with the air pipe connector. The other end of the three-way pipe fitting can be inserted into the laryngeal cavity of a patient through the insertion opening and the trachea connector of the three-way pipe fitting, the three-way pipe fitting is further provided with a first door structure capable of being opened and closed, and the first door structure is used for controlling communication of the insertion opening, the breathing machine connector and the trachea connector; the sputum suction tube is provided with the first door structure and the second door structure, the first door structure and the second door structure can be started at the same time, and the second door structure can be closed while the first door structure is opened, so that cleaning liquid cannot be injected when the first door structure is opened, and the phenomenon that the cleaning liquid flows into an airway due to the fact that the first door structure is forgotten to be closed is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of sputum suction tubes, in particular to a disposable closed sputum suction tube. Background Art

[0002] A closed suction tube is a medical device that removes secretions from a patient's mouth or nasal cavity through a tube to prevent suffocation or infection from inhaling secretions. Compared to traditional suction tubes, closed suction tubes prevent gas leakage from the tube, making them safer and more reliable during operation.

[0003] After use, the closed suction tube needs to be cleaned by injecting cleaning fluid into the soft sleeve through the cleaning tube 10. Therefore, the sliding switch (i.e., door structure 1) needs to be closed before cleaning to prevent the cleaning fluid from flowing into the patient's laryngeal cavity from the tracheal interface. The sliding switch of the existing closed suction tube can only disconnect the connection between the flushing tube and the ventilator interface and the tracheal interface. If the sliding switch is forgotten to be closed before cleaning, the cleaning fluid will flow into the patient's airway, thereby affecting the patient's breathing. Utility Model Content

[0004] The purpose of the present invention is to provide a sputum suction tube with a simple structure and reasonable design in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] The disposable closed sputum suction tube comprises a negative pressure component, a sputum suction tube, a three-way pipe fitting and a soft sleeve, the three-way pipe fitting is provided with an insertion port, a ventilator interface and an endotracheal interface, the soft sleeve is arranged on the outside of the sputum suction tube, and the two ends of the soft sleeve are respectively connected to the negative pressure component and the insertion port, one end of the sputum suction tube is connected to the negative pressure component, and the other end can be inserted into the patient's laryngeal cavity through the insertion port and the endotracheal interface of the three-way pipe fitting, the three-way pipe fitting is also provided with an openable and closable door structure 1, the door structure 1 is used to control the connection between the insertion port and the ventilator interface and the endotracheal interface, the surface of the three-way pipe fitting is connected to a cleaning pipe at a position between the door structure 1 and the insertion port, the connection between the cleaning pipe and the three-way pipe fitting is provided with a door structure 2, the door structure 2 is used to control the connection between the cleaning pipe and the insertion port, the door structure 1 is closed when the door structure 1 is closed, and the door structure 2 is closed when the door structure 1 is opened.

[0007] As a further optimization scheme of the present utility model, the door structure 1 includes a mounting shell, which divides the three-way pipe fitting into two sections, namely the input section and the output section. The section with the insertion port is the input section, and the section with the ventilator interface and the trachea interface is the output section. A connecting block is slidably connected inside the mounting shell, and a through hole is provided on the surface of the connecting block. A trigger member is connected to the surface of the connecting block, and the trigger member extends to the outside of the mounting shell. Sliding the trigger member drives the connecting block to move, so that the through hole connects the two sections of the three-way pipe fitting.

[0008] As a further optimization scheme of the present invention, the door structure 2 includes a connecting shell connected to the surface of the three-way pipe fitting, the cleaning pipe is connected to the connecting shell, and a penetrating flow channel is opened on the surface of the connecting shell. The flow channel connects the insertion port and the cleaning pipe. A rotating plate is rotatably connected in the connecting shell, and a flow groove is opened on the rotating plate. The rotating plate is rotated to make the flow groove correspond to the flow channel, that is, the door structure 2 is opened.

[0009] As a further optimization solution of the present invention, a transmission assembly is provided in the connecting shell, and the transmission assembly extends into the mounting shell and is connected to the connecting block. The connecting block is pushed and cooperates with the transmission assembly to drive the rotating plate to rotate.

[0010] As a further optimization scheme of the present invention, the transmission assembly includes a gear, a rack and a connecting rod, the gear is coaxially connected to the rotating plate, the rack is engaged with the gear and slides along the inner wall of the mounting shell, one end of the connecting rod is connected to the surface of the rack, and the other end extends into the mounting shell and is fixedly connected to the surface of the connecting block.

[0011] As a further optimization solution of the present invention, a limiting component is provided in the installation shell to limit the movement of the connecting block.

[0012] As a further optimization scheme of the present invention, the limiting assembly includes a protrusion, and the protrusions are provided in two groups. The two groups of protrusions are respectively connected to the two ends of the inner wall of one side of the mounting shell and are far away from each other. The surface of the connecting block is provided with two groups of grooves, which are respectively arranged corresponding to the two groups of protrusions.

[0013] As a further optimization solution of the present invention, the surface of the triggering member is raised with multiple groups of raised blocks.

[0014] The beneficial effect of the present invention is that: the present invention is provided with door structure 1 and door structure 2, door structure 1 and door structure 2 will be started at the same time, door structure 1 will be closed when door structure 2 is opened, so the cleaning liquid cannot be injected when door structure 1 is opened, thereby preventing the cleaning liquid from flowing into the airway due to forgetting to close door structure 1. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the door structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the transmission assembly structure of the utility model;

[0018] Figure 4 It is a schematic structural diagram of the limit assembly of the utility model.

[0019] In the figure: 1. Negative pressure component; 2. Suction tube; 3. Three-way pipe fitting; 4. Soft sleeve; 5. Insertion port; 6. Ventilator interface; 7. Trachea interface; 8. Door structure one; 81. Mounting shell; 82. Connecting block; 83. Through hole; 84. Trigger; 9. Door structure two; 91. Connecting shell; 92. Turn plate; 93. Circulation slot; 10. Cleaning tube; 11. Flow channel; 12. Transmission component; 121. Gear; 122. Rack; 123. Connecting rod; 13. Limiting component; 131. Bump; 132. Groove; 14. Raised block. DETAILED DESCRIPTION

[0020] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0021] refer to Figure 1 When the phlegm is discharged, the patient's laryngeal cavity is closed, and the phlegm is discharged through the cavity 7. When the phlegm is discharged, the patient's laryngeal cavity is closed, and the patient's laryngeal cavity is opened. When the phlegm is discharged, the patient's laryngeal cavity is opened, and the patient's laryngeal cavity is opened.

[0022] It should be noted that when the cleaning liquid is injected from the cleaning pipe 10, if the door structure 1 8 is open, the door structure 2 9 is closed. Therefore, the cleaning liquid cannot be injected when the door structure 1 8 is open, thereby preventing the cleaning liquid from flowing into the airway due to forgetting to close the door structure 1 8.

[0023] refer to Figure 2 and Figure 4 The door structure 8 includes a mounting shell 81, which divides the three-way pipe fitting 3 into two sections, namely the input section and the output section. The section with the insertion port 5 is the input section, and the section with the ventilator interface 6 and the trachea interface 7 is the output section. A connecting block 82 is slidably connected inside the mounting shell 81. A through hole 83 is opened on the surface of the connecting block 82. A trigger member 84 is connected to the surface of the connecting block 82. The trigger member 84 extends to the outside of the mounting shell 81. The sliding trigger member 84 drives the connecting block 82 to move, so that the through hole 83 connects the two sections of the three-way pipe fitting 3.

[0024] It should be noted that when it is necessary to disconnect the two sections of the three-way pipe fittings 3, the connecting block 82 can be pushed to move the through hole 83 away from the three-way pipe fitting 3. At this time, the wall surface of the connecting block 82 is located between the two sections of the three-way pipe fittings 3, disconnecting the two sections of the three-way pipe fittings 3.

[0025] Furthermore, the door structure 2 9 includes a connecting shell 91 connected to the surface of the three-way pipe fitting 3, the cleaning pipe 10 is connected to the connecting shell 91, and a penetrating flow channel 11 is provided on the surface of the connecting shell 91. The flow channel 11 connects the insertion port 5 and the cleaning pipe 10. A rotating plate 92 is rotatably connected in the connecting shell 91, and a flow groove 93 is provided on the rotating plate 92. The rotating plate 92 is rotated to make the flow groove 93 correspond to the flow channel 11, that is, the door structure 2 9 is opened.

[0026] It should be noted that when the rotating plate 92 is rotated to move the flow slot 93 away from the flow channel 11 , the wall surface of the rotating plate 92 will block the flow channel 11 , and at this time the second door structure 9 is in a closed state.

[0027] refer to Figure 2 and Figure 3 A transmission assembly 12 is provided in the connecting shell 91. The transmission assembly 12 extends into the mounting shell 81 and is connected to the connecting block 82. By pushing the connecting block 82 and cooperating with the transmission assembly 12, the rotating plate 92 can be driven to rotate.

[0028] Furthermore, the transmission assembly 12 includes a gear 121, a rack 122 and a connecting rod 123. The gear 121 is coaxially connected to the rotating plate 92. The rack 122 is engaged with the gear 121 and slides along the inner wall of the mounting shell 81. One end of the connecting rod 123 is connected to the surface of the rack 122, and the other end extends into the mounting shell 81 and is fixedly connected to the surface of the connecting block 82.

[0029] In actual use, pushing the connecting block 82 will drive the connecting rod 123 to move, the connecting rod 123 drives the rack 122 to move, the rack 122 drives the gear 121 to rotate, and thus drives the rotating plate 92 to rotate.

[0030] refer to Figure 3 and Figure 4 A limiting assembly 13 is provided in the mounting shell 81 to limit the movement of the connecting block 82 .

[0031] Furthermore, the limiting assembly 13 includes two groups of protrusions 131, and the two groups of protrusions 131 are respectively connected to the two ends of the inner wall of one side of the mounting shell 81, which are far away from each other. The surface of the connecting block 82 is provided with two groups of grooves 132, which are respectively arranged corresponding to the two groups of protrusions 131.

[0032] In this embodiment, two groups of grooves 132 are opened on the surface of the connecting block 82 in the same direction as the pushing direction, and the two groups of grooves 132 are respectively located at the corresponding two side edges of the side surface. When the through hole 83 connects the two sections of the three-way pipe fittings 3, one group of protrusions 131 away from the through hole 83 is located in the grooves 132. The cooperation between the two makes it impossible for the connecting block 82 to move without external force.

[0033] It should be noted that the contact surface between the protrusion 131 and the connecting block 82 is an arc surface.

[0034] Furthermore, a plurality of groups of protruding blocks 14 are protruded from the surface of the trigger member 84 .

[0035] It should be noted that when the operator needs to push the trigger member 84 , the operator's fingers will contact the protruding block 14 . The provision of the protruding block 14 enables the operator to push the trigger member 84 more conveniently.

[0036] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A disposable closed sputum suction tube, comprising a negative pressure component (1), a sputum suction tube (2), a three-way pipe fitting (3) and a soft sleeve (4), wherein the three-way pipe fitting (3) is provided with an insertion port (5), a ventilator interface (6) and an tracheal interface (7), and is characterized in that: The soft sleeve (4) is sleeved on the outside of the sputum suction tube (2), and the two ends of the soft sleeve (4) are respectively connected to the negative pressure component (1) and the insertion port (5). One end of the sputum suction tube (2) is connected to the negative pressure component (1), and the other end can be inserted into the laryngeal cavity of the patient through the insertion port (5) of the three-way pipe fitting (3) and the tracheal interface (7). The three-way pipe fitting (3) is also provided with a door structure (8) that can be opened and closed. The door structure (8) is used to control the insertion port (5) and the ventilator interface (6). and the connection with the trachea interface (7); a cleaning pipe (10) is connected to the surface of the three-way pipe fitting (3) at a position between the door structure 1 (8) and the insertion port (5); a door structure 2 (9) is provided at the connection between the cleaning pipe (10) and the three-way pipe fitting (3); the door structure 2 (9) is used to control the connection between the cleaning pipe (10) and the insertion port (5); when the door structure 1 (8) is closed, the door structure 2 (9) is opened; when the door structure 1 (8) is opened, the door structure 2 (9) is closed.

2. The disposable closed sputum suction tube according to claim 1, characterized in that: The door structure (8) includes a mounting shell (81), and the mounting shell (81) divides the three-way pipe fitting (3) into two sections, namely an input section and an output section. The section provided with an insertion port (5) is the input section, and the section provided with a ventilator interface (6) and an trachea interface (7) is the output section. A connecting block (82) is slidably connected inside the mounting shell (81), and a through hole (83) is provided on the surface of the connecting block (82). A trigger member (84) is connected to the surface of the connecting block (82), and the trigger member (84) extends to the outside of the mounting shell (81). The sliding of the trigger member (84) drives the connecting block (82) to move, so that the through hole (83) connects the two sections of the three-way pipe fitting (3).

3. The disposable closed sputum suction tube according to claim 1, characterized in that: The second door structure (9) comprises a connecting shell (91) connected to the surface of the three-way pipe fitting (3), the cleaning pipe (10) is connected to the connecting shell (91), a penetrating flow channel (11) is provided on the surface of the connecting shell (91), the flow channel (11) is connected to the insertion port (5) and the cleaning pipe (10), a rotating plate (92) is rotatably connected in the connecting shell (91), and a flow groove (93) is provided on the rotating plate (92), and the rotating plate (92) is rotated so that the flow groove (93) corresponds to the flow channel (11), that is, the second door structure (9) is opened.

4. The disposable closed sputum suction tube according to claim 3, characterized in that: A transmission assembly (12) is provided in the connecting shell (91). The transmission assembly (12) extends into the mounting shell (81) and is connected to the connecting block (82). The connecting block (82) is pushed and cooperates with the transmission assembly (12), thereby driving the rotating plate (92) to rotate.

5. The disposable closed sputum suction tube according to claim 4, characterized in that: The transmission assembly (12) comprises a gear (121), a rack (122) and a connecting rod (123); the gear (121) is coaxially connected to the rotating plate (92); the rack (122) is meshed with the gear (121) and slides along the inner wall of the mounting shell (81); one end of the connecting rod (123) is connected to the surface of the rack (122), and the other end extends into the mounting shell (81) and is fixedly connected to the surface of the connecting block (82).

6. The disposable closed sputum suction tube according to claim 2, characterized in that: A limiting assembly (13) is provided in the mounting shell (81) for limiting the movement of the connecting block (82).

7. The disposable closed sputum suction tube according to claim 6, characterized in that: The limiting assembly (13) includes two groups of protrusions (131). The two groups of protrusions (131) are respectively connected to two ends of the inner wall of one side of the mounting shell (81) that are away from each other. The surface of the connecting block (82) is provided with two groups of grooves (132), which are respectively arranged corresponding to the two groups of protrusions (131).

8. The disposable closed sputum suction tube according to claim 2, characterized in that: The surface of the triggering member (84) is protruded with a plurality of groups of protruding blocks (14).

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