Pulmonary alveolar lavage device

Abstract

The utility model provides a pulmonary alveolar lavage device, which comprises a collecting bottle, a first connecting pipe, a second connecting pipe, a first connecting pipe, a second connecting pipe, a first connecting pipe and a second connecting pipe, one end of the adapter is connected with the first connecting pipe, and the other end of the adapter is connected with negative pressure suction equipment; the water injection and suction structure comprises a flow guide pipe extending from the near end to the far end, the near end of the flow guide pipe is connected with the second connecting pipe, the far end of the flow guide pipe is open, and a first flow channel used for injecting liquid into the focus area and a second flow channel used for conveying irrigation liquid to the collecting bottle are arranged in the flow guide pipe; and the first flow channel and the second flow channel are arranged along the extension direction of the flow guide pipe and extend to the opening, so that the operation efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an alveolar lavage device. Background Art

[0002] Bronchoalveolar lavage is a procedure in which a bronchoscope is inserted through the mouth and nose. When the bronchoscope reaches the lesion area, the lesion area is injected with fluid and suctioned with negative pressure. The collected lavage fluid is analyzed to facilitate targeted treatment by doctors. This has been widely accepted in disease diagnosis, but how to improve the efficiency of alveolar lavage and reduce the spread of lesions during lavage remains a problem that needs to be solved. Utility Model Content

[0003] In order to solve the problems in the prior art, the utility model proposes an alveolar lavage device which can improve the lavage efficiency, is simple to operate, and can effectively prevent the spread of viruses during the lavage process.

[0004] In order to achieve the above purpose, the following technical solutions are adopted:

[0005] A pulmonary alveolar lavage device, comprising

[0006] A collecting bottle, which is used to collect the irrigation fluid and is provided with a first connecting tube and a second connecting tube;

[0007] An adapter, one end of which is connected to the first connecting tube, and the other end of which is connected to the negative pressure suction device;

[0008] The water injection and suction structure includes a guide tube extending from the proximal end to the distal end, wherein the proximal end of the guide tube is connected to the second connecting tube, and the distal end of the guide tube is open. The guide tube has a first flow channel for injecting liquid into the lesion area and a second flow channel for conveying the irrigation liquid to the collection bottle. The first flow channel and the second flow channel are both arranged along the extension direction of the guide tube and extend to the opening. In this technical solution, the injection pipeline is arranged closer to the lesion area, which speeds up the speed at which the liquid reaches the lesion more quickly and improves the irrigation efficiency. Furthermore, the injection and suction pipelines are arranged separately, so that the liquid can be sucked while the liquid is injected, which can improve the irrigation efficiency; at the same time, the operation is simpler.

[0009] As a preferred solution, the flow guide tube includes an outer tube and an inner tube defined inside the outer tube;

[0010] The inner tube comprises a peripheral tube wall and a chamber formed by the peripheral tube wall, the chamber is the first flow channel, and a water injection joint communicating with the first flow channel is provided at the proximal end of the peripheral tube wall;

[0011] The inner diameter of the outer tube is larger than the outer diameter of the inner tube, and the gap formed by the outer tube and the inner tube in the radial direction is the second flow channel; in this technical solution, the structure is simple and the operation is more convenient. At the same time, the inner and outer tubes are used to define the injection and suction pipes, which reduces the radial size of the catheter and improves comfort. At the same time, the injection and suction pipes are separated, which can effectively improve efficiency.

[0012] As a preferred solution, since there is some inflammation or bacteria in the alveoli, and since the trachea in each person's lungs are of different sizes, the drainage tube cannot fit well with the bronchus, resulting in a gap between the drainage tube and the bronchus. During the lavage process, it is easy to cause the inflammation or bacteria to spread from this gap to other parts, increasing the risk of treatment. Therefore, the device also includes a third channel, which is constructed on the outer wall of the drainage tube. A balloon is installed on the outer wall around the head end of the drainage tube. The balloon is connected to the third channel. The balloon is expanded by injecting gas or liquid into the third channel, so that the head of the device is closely attached to the bronchus, thereby preventing the lavage fluid from flowing into other locations.

[0013] As a preferred embodiment, a plurality of openings are provided on the tube wall of the guide tube head end, and the openings are axially distributed around the guide tube head end. The plurality of openings are connected to the first flow channel and / or the second flow channel, so that the irrigation fluid can flow out in a scattered manner around the guide tube head end during irrigation, thereby reducing the impact on the trachea.

[0014] As a preferred solution, a transition joint and a switch for controlling the closing of the transition joint are provided between the second connecting pipe and the flow guide pipe, and the state of conduction between the second connecting pipe and the second flow channel is changed by the cooperation between the switch and the transition joint.

[0015] As a preferred solution, a detachable bottle cap is provided at the upper end of the collecting bottle, and a sealing ring for sealing is provided between the bottle cap and the collecting bottle.

[0016] As a preferred solution, the plurality of openings are distributed at a certain interval in the axial direction of the head end of the guide tube, so that the irrigation fluid can flow out evenly during injection.

[0017] As a preferred solution, a scale is provided on the collecting bottle to observe in real time whether the required liquid meets the standard.

[0018] As a preferred solution, a soft head is connected to the head end of the guide tube. The soft head has openings at both ends and is made of soft material. It is connected to the first flow channel and the second flow channel, which can reduce the damage to the human body when the guide tube enters.

[0019] As a preferred solution, a pressure relief port is provided on the adapter.

[0020] Compared with the prior art, the utility model has the following advantages:

[0021] 1. Improve irrigation efficiency and make operation easier.

[0022] 2. It can reduce the risk of virus spread during irrigation.

[0023] 3. Improve comfort and reduce harm to the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of one embodiment of the utility model.

[0025] Figure 2 for Figure 1 sectional view of .

[0026] Figure 3 for Figure 1 Transverse cross-sectional view of the guide tube head.

[0027] Figure 4 This is a schematic diagram of the overall structure of another embodiment of the utility model.

[0028] Figure 5 For this utility model Figure 4 sectional view of .

[0029] Figure 6 for Figure 4 Cross-sectional view of the nozzle head.

[0030] Figure 7 This is an enlarged view of the structure of the bottle cap of the collecting bottle of the present invention.

[0031] Figure 8 for Figure 2 Schematic diagram of the structure of the soft head at the head end of the guide tube.

[0032] Fig. 9 This is a schematic diagram of the pore structure of the utility model.

[0033] Fig.10 for Figure 5 A magnified view of the structure.

[0034] Fig.11 for Figure 5 Enlarged view of the structure at the head end of the guide tube.

[0035] Among them, 1. adapter; 2. collecting bottle; 3. transition joint; 4. handle; 5. guide tube; 6. first connecting tube; 7. second connecting tube; 8. first joint; 9. first flow channel; 10. second flow channel; 11. outer tube; 12. inner tube; 13. water injection joint; 14. third channel; 15. balloon; 16. second joint; 17. opening; 19. switch; 20. bottle cap; 21. sealing ring; 22. scale; 23. soft head; 24. pressure relief port; 25. third joint; 26. interface. DETAILED DESCRIPTION

[0036] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0037] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise", etc., indicating the orientation and position relationships, are based on the orientation or position relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the method or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "hold" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an electrical connection, or an indirect connection through an intermediate medium, or it can be a communication between the internal sections of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0040] like Figures 1 to 11 As shown, this embodiment provides an alveolar lavage device, which includes a collection bottle 2, which is used to collect lavage fluid, and is provided with a first connecting tube 6 and a second connecting tube 7, wherein the first connecting tube 6 and the second connecting tube 7 are both hoses, and the first connecting tube 6 and the second connecting tube 7 are respectively arranged above the collection bottle 2 through a first joint 8;

[0041] An adapter 1, one end of which is connected to the first connecting tube 6, and the other end of which is connected to the negative pressure suction device;

[0042] The water injection and suction structure includes a guide tube 5 extending from the proximal end to the distal end. The guide tube 5 is made of soft material. The proximal end of the guide tube 5 is connected to the second connecting tube 7, and the distal end of the guide tube 5 is open. The guide tube 5 has a first flow channel 9 for injecting liquid into the lesion area and a second flow channel 10 for transporting the irrigation liquid to the collecting bottle 2. The first flow channel 9 and the second flow channel 10 are both arranged along the extension direction of the guide tube 5 and extend to the opening. In this technical solution, the injection pipeline is arranged closer to the lesion area, which speeds up the speed at which the liquid reaches the lesion more quickly and improves the irrigation efficiency; further, the injection and suction pipelines are separately arranged, so that the liquid can be sucked while the liquid is injected, which can improve the irrigation efficiency; at the same time, the operation is simpler.

[0043] In further embodiments, see Figure 2 and Figure 5 , Figure 8 The flow guide tube 5 includes an outer tube 11 and a

[0044] The inner tube 12 inside; the inner tube 12 includes a peripheral tube wall and a chamber formed by the peripheral tube wall, the chamber is the first flow channel 9, the proximal end of the peripheral tube wall is provided with a water injection joint 13 connected to the first flow channel 9, the water injection joint 13 is provided with a one-way valve, when water is injected, the liquid first enters from the one-way valve and then passes through the water injection joint 13, flows through the first flow channel 9, and then flows out from the head end of the guide tube 5 into the lungs;

[0045] The inner diameter of the outer tube 11 is greater than the outer diameter of the inner tube 12. The gap formed by the outer tube 11 and the inner tube 12 in the radial direction is the second flow channel 10. Under the action of the negative pressure suction device, the liquid enters the collecting bottle 2 from the second flow channel 10 through the second connecting tube 7; this embodiment has a simple structure and is more convenient to operate. At the same time, the inner and outer tubes 11 are used to define the injection and suction pipelines, which reduces the radial size of the catheter and improves comfort. At the same time, the injection and suction pipelines are separated, which can effectively improve efficiency.

[0046] See also Figures 4 to 6 , Fig.11In another further embodiment, due to the presence of some inflammation or bacteria in the alveoli, and due to the different sizes of trachea in each person's lungs, the drainage tube 5 cannot fit well with the bronchus, so that there is a gap between the drainage tube 5 and the bronchus, which can easily cause the inflammation or bacteria to spread from this gap to other parts during the lavage process, increasing the risk of treatment. Therefore, the device also includes a third channel 14, which is constructed on the outer guide tube 11, and a balloon 15 is installed on the outer wall of the head end of the drainage tube 5. The balloon 15 is connected to the third channel 14, and the balloon 15 is expanded by injecting gas or liquid into the third channel 14, so that the head of the device is closely attached to the bronchus, thereby preventing the lavage fluid from flowing into other positions; the proximal end of the third channel 14 is also provided with a second connector 16 that can be injected with liquid or gas. In this embodiment, the balloon 15 is made of elastic material, preferably silicone or polyester.

[0047] like Figure 1 and Figure 2 , Figure 4 and Figure 5 , Fig.10 As shown, the device is also provided with a handle 4, which is constructed at the proximal end of the guide tube 5. A third joint 25 is provided at the proximal end of the handle 4. One end of the second joint 16 is connected to the transition joint 3, and the other end is connected to the guide tube 5. An interface 26 is provided at the distal end of the handle 4, and the interface 26 is constructed on the outer wall of the outer tube 11. The water injection joint 13 and the second joint 16 are limited at the handle 4.

[0048] See also Figure 1 and Figure 6 , Fig. 9 In a preferred embodiment, a plurality of openings 17 are provided on the tube wall of the head end of the guide tube 5, and the openings 17 are axially distributed around the head end of the guide tube 5. The plurality of openings 17 are connected to the first flow channel 9 and / or the second flow channel 10, so that the irrigation fluid can flow out in a scattered manner around the head end of the guide tube 5 during irrigation, thereby reducing the impact on the trachea; more preferably, the plurality of openings 17 are axially distributed at a certain interval at the head end of the guide tube 5, so that the irrigation fluid can flow out evenly during irrigation; preferably, the openings 17 are circular holes.

[0049] See also Figure 2 and Figure 5 In a further embodiment, a transition joint 3 and a switch 19 for controlling the closing of the transition joint 3 are provided between the second connecting pipe 7 and the guide pipe 5. The switch 19 cooperates with the transition joint 3 to change the state of conduction between the second connecting pipe 7 and the second flow channel 10. Preferably, the transition joint 3 can be a two-way joint or a Robert clamp.

[0050] See also Figure 7 A detachable bottle cap 20 is provided at the upper end of the collecting bottle 2, and the bottle cap 20 is fixed to the body of the collecting bottle 2 by snapping, and a sealing ring 21 is provided between the bottle cap 20 and the collecting bottle 2 to improve the sealing effect.

[0051] Preferably, the collecting bottle 2 is provided with a scale 22 to observe in real time whether the required liquid meets the standard.

[0052] See also Figure 8 The head end of the guide tube 5 is connected to a soft head 23, which is made of a material softer than the guide tube. The soft head 23 has openings at both ends and is made of a soft material. It is connected to the first flow channel 9 and the second flow channel 10, which can reduce the damage to the human body caused by the guide tube 5 when entering.

[0053] As a preferred solution, the adapter 1 is provided with a pressure relief port 24, and when the pressure relief port 24 is opened, negative pressure suction can be quickly stopped.

[0054] The installation and operation method of the utility model device is as follows:

[0055] Assemble the device as follows: negative pressure suction pipeline: connect one end of the first connecting tube 6 to the first joint 8 on the bottle cap 20, and the other end to the adapter 1, and then the adapter 1 is connected to the negative pressure suction equipment; water injection pipeline: connect the second connecting tube 7 to the other joint of the bottle cap 20, and then connect the other end of the transition joint 3 to the handle 4 joint, and the other end of the handle 4 joint is connected to the guide tube 5.

[0056] After installation, the guide tube 5 is inserted into the lesion to be irrigated, and the water injection and water absorption steps are started as needed.

[0057] The steps of injection are as follows: the irrigation fluid enters from the one-way valve and flows into the first flow channel 9 through the water injection joint 13, and then flows out from the soft head 23 and the opening 17 to enter the lungs.

[0058] The steps for aspirating liquid are as follows: turn on the negative pressure suction device. Due to the effect of negative pressure suction, the liquid at the lesion passes through the second flow channel 10, the third joint 25 at the proximal end of the handle 4, the transition joint 3 and the second connecting tube 7 in sequence, and finally enters the collecting bottle 2. Observe the liquid volume in the collecting bottle 2 according to the scale line. When the requirement is met, open the pressure relief port 24, quickly stop the negative pressure suction, and then the medical staff inspects the liquid in the collecting bottle 2.

[0059] Compared with the prior art, the utility model has the following advantages:

[0060] 1. Improve irrigation efficiency and make operation easier.

[0061] 2. It can reduce the risk of virus spread during irrigation.

[0062] 3. Improve comfort and reduce harm to the human body.

[0063] It should be noted that the above embodiments are only representative examples of the present utility model. The present utility model can also have many variations. Any simple modification, equivalent changes and modifications made to the above embodiments based on the essence of the present utility model should be considered to belong to the protection scope of the present utility model.

Claims

1. A pulmonary alveolar lavage device, characterized in that: include A collecting bottle (2) is used to collect irrigation fluid and is provided with a first connecting tube (6) and a second connecting tube (7); An adapter (1), one end of which is connected to the first connecting tube (6), and the other end of which is connected to the negative pressure suction device; The water injection and absorption structure comprises a guide tube (5) extending from the proximal end to the distal end, wherein the proximal end of the guide tube (5) is connected to the second connecting tube (7), and the distal end of the guide tube (5) is open. The guide tube (5) has a first flow channel (9) for injecting liquid into the lesion area and a second flow channel (10) for conveying the irrigation liquid to the collection bottle (2), wherein the first flow channel (9) and the second flow channel (10) are both arranged along the extension direction of the guide tube (5) and extend to the opening; and further comprises a third channel (14), wherein the third channel is constructed on the guide tube (5), and a balloon (15) is installed on the outer wall of the peripheral side of the head end of the guide tube (5), and the balloon (15) is connected to the third channel (14).

2. A pulmonary alveolar lavage device according to claim 1, characterized in that: The flow guide tube (5) comprises an outer tube (11) and an inner tube (12) confined inside the outer tube (11); The inner tube (12) comprises a peripheral tube wall and a chamber formed by the peripheral tube wall, wherein the chamber is the first flow channel (9), and a water injection joint (13) communicating with the first flow channel (9) is provided at the proximal end of the peripheral tube wall; The inner diameter of the outer tube (11) is greater than the outer diameter of the inner tube (12), and the gap formed in the radial direction between the outer tube (11) and the inner tube (12) is the second flow channel (10).

3. The alveolar lavage device according to claim 1, characterized in that: A plurality of openings (17) are provided on the tube wall of the head end of the guide tube (5), the openings are axially distributed around the head end of the guide tube (5), and the plurality of openings (17) are connected to the first flow channel (9) and / or the second flow channel (10).

4. The alveolar lavage device according to claim 1, characterized in that: A transition joint (3) and a switch (19) for controlling the closing of the transition joint (3) are provided between the second connecting pipe (7) and the flow guide pipe (5). The switch (19) cooperates with the transition joint (3) to change the state of conduction between the second connecting pipe (7) and the second flow channel (10).

5. The alveolar lavage device according to claim 1, characterized in that: A detachable bottle cap (20) is provided at the upper end of the collecting bottle (2), and a sealing ring (21) for sealing is provided between the bottle cap (20) and the collecting bottle (2).

6. The alveolar lavage device according to claim 3, characterized in that: The plurality of openings (17) are distributed at a certain interval in the axial direction of the head end of the flow guide tube (5).

7. The alveolar lavage device according to claim 1, characterized in that: The collecting bottle (2) is provided with a scale (22).

8. The alveolar lavage device according to claim 1, characterized in that: The head end of the guide tube (5) is connected to a soft head. The soft head (23) is open at both ends and is made of soft material. It is connected to the first flow channel (9) and the second flow channel (10).

9. The alveolar lavage device according to claim 1, characterized in that: The adapter (1) is provided with a pressure relief port (24).

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