Visual double-lumen bronchial cannula

Abstract

A visual double-lumen bronchial cannula comprises a cannula main tube, a first trachea and a second trachea, a first channel and a second channel are arranged in the cannula main tube, a bending portion is arranged at the front end of the first channel, a first cuff is arranged on the bending portion, and a first inflation valve is connected to the first cuff. The first cuff and the outer side of a bent part at the front end of the first cuff are both provided with super-smooth hydrophilic coatings, one side of the bottom of the bent part is provided with an LED camera, one side of the LED camera is provided with a front end air port of a second channel, the rear end of the front end air port is provided with a second cuff, the second cuff is connected with a second inflation valve, and the rear end of the first channel is connected with a first air pipe to form a first air path; the rear end of the second channel is connected with a second air pipe to form a second air channel, and a second sputum suction pipe is arranged in the second air channel. The super-smooth hydrophilic coating is arranged on the cannula, so that the friction with the lung tube is reduced; the cost is reduced by using a single LED camera; the sputum suction tube capable of moving back and forth is arranged in the air channel, so that the pollution discharge efficiency is improved, and scale marks are added to improve the operation precision.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a visual double-lumen endobronchial cannula. Background Art

[0002] A double-lumen endobronchial tube is a medical device used in surgical operations. It is mainly inserted into the patient's left or right bronchus to ensure that the airway of the left or right lung is unobstructed and to avoid infection caused by overflow of sputum or blood.

[0003] There is a Chinese patent with authorization announcement number CN220293959U, which discloses a dual-visual double-lumen right bronchial catheter, characterized in that it includes a left tube and a right tube, the side wall of the left tube is fixed with a right tube, the left tube and the right tube are parallel at the end section, and the right tube cuff is provided at the end section of the right tube, and the main cuff and the right tube cuff are both provided with inflation valves, and the inflation channels thereof pass through the tube wall at the connection of the left and right tubes, and pass through the outer wall of the catheter at the cuff, the inner wall at the end of the left tube is provided with a main camera, the right tube cuff is provided with a right upper lung side hole at a distance, and a camera is provided on the tube wall opposite to the right upper lung side hole, which is used to observe the relative position between the right upper lung side hole of the right tube and the right upper lung opening, and the main camera and the right camera are both equipped with LED for lighting, and flushing and suction tubes are provided nearby. The problem of blind spots in the visual double-lumen right tube field is solved, and complications of intubation caused by repeated adjustment of the catheter position are reduced.

[0004] Although the technical solution in the above patent document reduces the problem of intubation complications caused by repeated adjustment of the catheter position, it requires the use of two sets of cameras, which is expensive. In addition, during use, the friction between the front end of the intubation tube and the lung tube during adjustment using the camera is still likely to cause intubation complications. In addition, the position of the suction tube is difficult to adjust, and the sewage discharge efficiency is low.

[0005] Therefore, in view of the deficiencies in the prior art, the utility model discloses a visual double-lumen endobronchial cannula to solve the above problems.

[0006] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solution of the utility model and facilitating the understanding of those skilled in the art. It cannot be considered that the above contents are well known to those skilled in the art simply because they are explained in the background technology of the utility model. Utility Model Content

[0007] In order to overcome the deficiencies in the above-mentioned prior art, the purpose of the utility model is to disclose a visual double-lumen endobronchial cannula, which reduces the friction between the front end of the cannula and the pulmonary duct by adding an ultra-slippery hydrophilic coating at the front end of the cannula, thereby preventing the occurrence of intubation complications. At the same time, a bending portion matching the bronchus is provided at the front end of the cannula, and an LED camera is provided at the rear end of the bending portion for visual operation of the bending portion, thereby increasing positioning accuracy, and a suction tube that can be extended forward and backward is provided to improve suction efficiency.

[0008] In order to achieve the above-mentioned purpose and other related purposes, the technical solution provided by the utility model is: a visual double-lumen bronchial intubation tube, comprising an intubation main tube, a first trachea and a second trachea, wherein:

[0009] A first channel and a second channel are provided in the intubation main pipe, a bending portion matching the bronchus is provided at the front end of the first channel, a first cuff is provided on the bending portion, a first inflation valve is connected to the first cuff, an ultra-slip hydrophilic coating is provided on the outer side of the first cuff and the bending portion at the front end of the first cuff, an LED camera is provided on one side of the bottom of the bending portion, a plug is connected to the LED camera, a front end air port of the second channel is provided on one side of the LED camera, a second cuff is provided at the rear end of the front end air port, a second inflation valve is connected to the second cuff, the second cuff is located on the outer side of the first channel and the second channel, the rear end of the first channel is connected to the first trachea to form a first air circuit, a first suction tube that can be extended forward and backward is provided in the first air circuit, the rear end of the second channel is connected to the second trachea to form a second air circuit, a second suction tube that can be extended forward and backward is provided in the second air circuit.

[0010] The preferred technical solution is: the cannula main tube is made of transparent material, a length marking line is provided on the outside of the cannula main tube, a first calibration line is provided on the outside of the first suction tube, and a second calibration line is provided on the outside of the second suction tube to increase operation accuracy.

[0011] The preferred technical solution is: the visual double-lumen endobronchial cannula also includes a connecting piece, the connecting piece includes a first joint, a second joint and a switching tube, the front end of the first joint is connected to the rear end of the first trachea, the front end of the second joint is connected to the rear end of the second trachea, a first rubber cover is provided at the rear end of the first joint, a first through hole and a first rubber plug that can block the first through hole are provided on the first rubber cover, a second through hole and a second rubber plug that can block the second through hole are provided on the rear end of the second joint, a first airway is provided on one side of the first joint, a second airway is provided on one side of the second joint, a first interface, a second interface and a main interface are provided on the switching tube, the first interface is connected to the first airway, the second interface is connected to the second airway, the main interface is connected to an external gas transmission device, and gas can be supplied to two groups of gas circuits through one gas transmission pipeline.

[0012] The preferred technical solution is: the first suction tube can pass through the first through hole, the first joint, the first trachea and the first channel in sequence and be movably connected thereto, and the second suction tube can pass through the second through hole, the second joint, the second trachea and the second channel in sequence and be movably connected thereto.

[0013] The preferred technical solution is: a first inflation tube is provided on the first cuff, the first inflation tube is arranged in the side wall of the first channel and passes through the rear end of the side wall to be connected to the first inflation valve; a second inflation tube is provided on the second cuff, the second inflation tube is arranged in the side wall of the second channel and passes through the rear end of the side wall to be connected to the second inflation valve; the LED camera is connected to the plug through a wire.

[0014] The preferred technical solution is: a flushing channel is also provided in the cannula main pipe, a water inlet joint is connected to the rear end of the flushing channel, a flushing hole is provided at the front end of the flushing channel, and the flushing hole is located at the front side wall of the LED camera to prevent dirt from blocking the LED camera.

[0015] The preferred technical solution is: the visual double-lumen endobronchial tube also includes a support member, the support member matches the shape of the trachea, the front end of the support member can be inserted into the first air path from the rear end of the first trachea, the rear end of the support member is bent with a barb, and the barb can be clamped with the rear end of the second trachea to facilitate intubation operations.

[0016] Due to the application of the above technical scheme, the utility model has the following advantages: by setting an ultra-slippery hydrophilic coating on the intubation tube, the friction between the intubation tube and the lung tube is reduced, the difficulty of intubation can be reduced while reducing intubation complications; a single LED camera is used, and the device cost is low; a suction tube that can move back and forth is set in the air circuit to improve the sewage discharge efficiency, and scale markings are added to improve the operation accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a visual double-lumen endobronchial cannula of the utility model;

[0018] Figure 2 for Figure 1 The cross-sectional view taken along line AA;

[0019] Figure 3 It is a partial enlarged view of the B part in the utility model;

[0020] Figure 4 It is a partial enlarged view of the C part in the utility model;

[0021] Figure 5 This is a schematic diagram of the combination of the utility model when using the support member for operation;

[0022] Figure 6 It is a structural schematic diagram of the support member in the utility model.

[0023] In the above figures, 1, intubation main pipe; 11, first channel; 11a, bending part; 12, second channel; 12a, front air port; 13, first cuff; 13a, first inflation tube; 14, first inflation valve; 15, LED camera; 15a, plug: 15b, wire; 16, second cuff; 16a, second inflation tube; 17, second inflation valve; 18, length marking scale; 19, flushing channel; 19a, water inlet joint; 19b, flushing hole; 2, first air tube; 3, second air tube; 4 , the first suction tube; 41, the first calibration mark; 5, the second suction tube; 51, the second calibration mark; 6, the connecting piece; 61, the first joint; 61a, the first airway; 62, the second joint; 62a, the second airway; 63, the transfer tube; 63a, the first interface; 63b, the second interface; 63c, the main interface; 64, the first rubber cover; 64a, the first through hole; 64b, the first rubber plug; 65, the second rubber cover; 65a, the second through hole; 65b, the second rubber plug; 7, the supporting piece; 71, the barb. DETAILED DESCRIPTION

[0024] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0025] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device 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 utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] like Figure 1 and Figure 5 As shown, the utility model discloses a visual double-lumen endobronchial cannula, including a cannula main tube 1, a first trachea 2, a second trachea 3, a first sputum suction tube 4, a second sputum suction tube 5, a connecting piece 6 and a supporting piece 7. The main components of the utility model are described in detail below:

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, the cannula main tube 1 is made of a transparent material, a length marking mark 18 is provided on the outer side of the cannula main tube 1, a first channel 11 and a second channel 12 are provided inside the cannula main tube 1, a bending portion 11a matching the bronchus is provided at the front end of the first channel 11, a first cuff 13 is provided on the bending portion 11a, a first inflation tube 13a is provided on the first cuff 13, the first inflation tube 13a is arranged in the side wall of the first channel 11 and passes through the rear end of the side wall to be connected with the first inflation valve 14, the first cuff 13 and the bending portion 11a at the front end of the first cuff 13 are both provided with a super-slippery hydrophilic coating, an LED camera 15 is provided on one side of the bottom of the bending portion 11a, and the LED camera 15 passes through the first cuff 13 and the bending portion 11a at the front end of the first cuff 13. The lead wire 15b is connected with the plug 15a, and a front end air port 12a of the second channel 12 is provided on one side of the LED camera 15. A second cuff 16 is provided at the rear end of the front end air port 12a. A second inflation tube 16a is provided on the second cuff 16. The second inflation tube 16a is provided in the side wall of the second channel 12 and passes through the rear end of the side wall to be connected with the second inflation valve 17. The second cuff 16 is located on the outside of the first channel 11 and the second channel 12. A flushing channel 19 is also provided in the cannula main pipe 1. A water inlet joint 19a is connected to the rear end of the flushing channel 19. A flushing hole 19b is provided at the front end of the flushing channel 19. The flushing hole 19b is located at the front end side wall of the LED camera 15.

[0028] like Figure 1 and Figure 2 As shown, the rear end of the first channel 11 is connected to the first air pipe 2 to form a first air path, and the rear end of the second channel 12 is connected to the second air pipe 3 to form a second air path.

[0029] like Figure 1 and Figure 4 As shown, the connecting member 6 includes a first joint 61, a second joint 62 and a transfer tube 63. The front end of the first joint 61 is connected to the rear end of the first air pipe 2, and the front end of the second joint 62 is connected to the rear end of the second air pipe 3. A first rubber cover 64 is provided at the rear end of the first joint 61. The first rubber cover 64 is provided with a first through hole 64a and a first rubber plug 64b that can block the first through hole 64a. A second rubber cover 65 is provided at the rear end of the second joint 62. The second rubber cover 65 is provided with a second through hole 65a and a second rubber plug 65b that can block the second through hole 65a. A first air guide tube 61a is provided on one side of the first joint 61, and a second air guide tube 62a is provided on one side of the second joint 62. A first interface 63a, a second interface 63b and a main interface 63c are provided on the transfer tube 63. The first interface 63a is connected to the first air guide tube 61a, the second interface 63b is connected to the second air guide tube 62a, and the main interface 63c is connected to an external gas transmission device.

[0030] like Figure 1 , Figure 2 and Figure 3As shown, the first suction tube 4 can pass through the first through hole 64a, the first joint 61, the first trachea 2 and the first channel 11 in sequence and be movably connected thereto, the second suction tube 5 can pass through the second through hole 65a, the second joint 62, the second trachea 3 and the second channel 12 in sequence and be movably connected thereto, a first calibration mark 41 is provided on the outer side of the first suction tube 4, and a second calibration mark 51 is provided on the outer side of the second suction tube 5.

[0031] like Figure 1 , Figure 5 and Figure 6 As shown, the support member 7 matches the shape of the trachea, the front end of the support member 7 can be inserted into the first air path from the rear end of the first trachea 2, and the rear end of the support member 7 is bent with a barb 71, which can be engaged with the rear end of the second trachea 3

[0032] refer to Figures 1 to 6 As shown, when in use, the support member 7 is inserted into the first air path, and the first cuff 13 and the outer side of the bent portion 11a at the front end of the first cuff 13 are infiltrated. Because the first cuff 13 and the outer side of the bent portion 11a at the front end of the first cuff 13 are provided with a super-slippery hydrophilic coating, the surface friction can be reduced by more than 90% after infiltration, which can reduce the difficulty of intubation operation, and the first inflation valve 14, the second inflation valve 17, the water inlet joint 19a and the plug 15a are respectively connected to the corresponding external interfaces; then the cannula main pipe 1 is inserted from the oral cavity to the patient's lungs from the front end. During the insertion process, the insertion direction is adjusted through the field of view provided by the LED camera, and the insertion depth is controlled by the length marking scale line 18 on the outer side of the cannula main pipe 1. After reaching the position, the support member 7 is removed, the connector 6 is installed and ventilated, and the cannula position is adjusted through the field of view provided by the LED camera. The cuff 13 and the second cuff 16 are inflated. During this process, if the field of view of the LED camera is blocked by dirt, the water inlet connector 19a is connected and flushed through the flushing hole 19b; when the first air circuit needs to clear sputum, the first rubber plug 64b is opened, and the first suction tube 4 is passed through the first through hole 64a, the first connector 61, the first trachea 2 and the first channel 11 in sequence, and the first calibration mark 41 is used to cooperate with the length marking mark 18 on the outside of the intubation main tube 1 to control the length of the first suction tube 4 to improve the suction efficiency. Similarly, when the second air circuit needs to clear sputum, the second rubber plug 65b is opened, and the second suction tube 5 is passed through the second through hole 65a, the second connector 62, the second trachea 3 and the second channel 12 in sequence, and the second calibration mark 51 is used to cooperate with the length marking mark 18 on the outside of the intubation main tube 1 to control the length of the second suction tube 5 to extend.

[0033] In summary, the utility model has the following advantages compared with the prior art:

[0034] (1) By setting a super-slippery hydrophilic coating on the intubation tube, the friction between the intubation tube and the lung tube is reduced, which can reduce the difficulty of intubation and reduce intubation complications;

[0035] (2) The position of the cannula is adjusted by an LED camera installed behind the bending part. Only one camera is needed to complete the visual adjustment operation, which is simple to operate and reduces the cost of the device.

[0036] (3) A suction tube that can move back and forth is installed in the gas path to improve the sewage discharge efficiency;

[0037] (4) Scale markings are added to the outside of the suction tube and the intubation tube to accurately control the insertion depth of the suction tube and the intubation tube into the lungs and control the relative insertion length of the suction tube and the intubation tube.

[0038] The above embodiment provided by the utility model is only an example of the principle and effect of the utility model, and is not used to limit the utility model. Anyone familiar with this technology can modify or change the above embodiment without violating the spirit and scope of the utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed by the utility model should still be covered by the claims of the utility model.

Claims

1. A visual double-lumen endobronchial tube, characterized in that: It includes a cannula main tube, a first trachea and a second trachea, wherein: The intubation main pipe is provided with a first channel and a second channel, the front end of the first channel is provided with a bending portion matching the bronchus, the bending portion is provided with a first cuff, the first cuff is connected to a first inflation valve, the first cuff and the outer side of the bending portion of the front end of the first cuff are provided with an ultra-slippery hydrophilic coating, an LED camera is provided on one side of the bottom of the bending portion, a plug is connected to the LED camera, a front end air port of the second channel is provided on one side of the LED camera, a second cuff is provided at the rear end of the front end air port, the second cuff is connected to a second inflation valve, the second cuff is located on the outside of the first channel and the second channel, the rear end of the first channel is connected to the first trachea to form a first air circuit, a first suction tube that can be telescopically extended forward and backward is provided in the first air circuit, the rear end of the second channel is connected to the second trachea to form a second air circuit, and a second suction tube that can be telescopically extended forward and backward is provided in the second air circuit.

2. A visual double-lumen endobronchial cannula according to claim 1, characterized in that: The cannula main pipe is made of transparent material, a length marking mark is arranged on the outer side of the cannula main pipe, a first calibration mark is arranged on the outer side of the first sputum suction tube, and a second calibration mark is arranged on the outer side of the second sputum suction tube.

3. A visual double-lumen endobronchial cannula according to claim 1, characterized in that: The visual double-lumen endobronchial cannula also includes a connecting piece, which includes a first joint, a second joint and a transfer tube. The front end of the first joint is connected to the rear end of the first trachea, and the front end of the second joint is connected to the rear end of the second trachea. A first rubber cover is provided at the rear end of the first joint, and a first through hole and a first rubber plug that can block the first through hole are provided on the first rubber cover. A second rubber cover is provided at the rear end of the second joint, and a second through hole and a second rubber plug that can block the second through hole are provided on the second rubber cover. A first airway is provided on one side of the first joint, and a second airway is provided on one side of the second joint. A first interface, a second interface and a main interface are provided on the transfer tube. The first interface is connected to the first airway, the second interface is connected to the second airway, and the main interface is connected to an external gas transmission device.

4. A visual double-lumen endobronchial cannula according to claim 3, characterized in that: The first sputum suction tube can sequentially pass through the first through hole, the first joint, the first trachea and the first channel and be movably connected thereto, and the second sputum suction tube can sequentially pass through the second through hole, the second joint, the second trachea and the second channel and be movably connected thereto.

5. The visual double-lumen endobronchial cannula according to claim 1, characterized in that: The first cuff is provided with a first inflation tube, which is arranged in the side wall of the first channel and passes through the rear end of the side wall to be connected to the first inflation valve; the second cuff is provided with a second inflation tube, which is arranged in the side wall of the second channel and passes through the rear end of the side wall to be connected to the second inflation valve; the LED camera is connected to the plug through a wire.

6. A visual double-lumen endobronchial cannula according to claim 1, characterized in that: A flushing channel is also provided in the cannula main pipe, the rear end of the flushing channel is connected to a water inlet joint, and the front end of the flushing channel is provided with a flushing hole, and the flushing hole is located at the front end side wall of the LED camera.

7. The visual double-lumen endobronchial cannula according to claim 1, characterized in that: The visual double-lumen endobronchial tube also includes a support member, which matches the shape of the trachea. The front end of the support member can be inserted into the first air path from the rear end of the first trachea. The rear end of the support member is bent with a barb, and the barb can be clamped with the rear end of the second trachea.

Images