Visual single-lumen bronchial cannula

Abstract

The visual single-cavity bronchial cannula comprises a cannula body, a blocking balloon is arranged on the inner wall of the far end of the cannula body, a trachea cuff and a bronchial cuff which are gradually close to the far end of the cannula body are sequentially arranged on the outer wall of the cannula body, and the trachea cuff, the bronchial cuff and the blocking balloon are all connected with a cuff inflation system. The tracheal tube further comprises a camera shooting system and at least one side vent hole, the side vent hole is formed in the side wall of the tube body and located between the tracheal cuff and the bronchial cuff, and the lens end of the camera shooting system is located below the inner side of the side vent hole and shoots outwards through the side vent hole. The utility model has the advantages that the operation is simple and convenient, the intubation success rate can be improved, and the airway mucosa injury of a patient is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bronchial intubation, in particular to a visual single-lumen bronchial intubation. Background Art

[0002] Before thoracic surgery, it is necessary to select appropriate lung isolation technology. Good lung isolation technology can not only provide surgeons with a good surgical field of view, but also prevent secretions or blood from the surgical lung from entering the healthy lung, thereby ensuring the unobstructed airway of the healthy lung, providing effective ventilation support, and avoiding cross infection. In clinical work, double-lumen bronchial intubation or bronchial plugger is usually selected to block one main bronchus to achieve lung isolation. However, the traditional double-lumen bronchial intubation has a thick outer diameter, which is easy to damage the glottis and airway mucosa during use. In addition, each trachea is ventilated separately, there are many joints, the anesthesia preparation operation is cumbersome, the risk of joint leakage is high, and there are few models to choose from. It is not suitable for patients with airway stenosis, especially some children with single lung surgery; and the traditional bronchial plugger needs to be used with tracheal intubation, the catheter diameter is small, it is easy to shift during clinical use, and it needs to be positioned by fiber bronchoscope when used. The diameter of the tracheal intubation used is too thin, which will affect the operation of fiber bronchoscope. If the catheter shifts, the fiber bronchoscope needs to be re-positioned, which is complicated and has high medical costs.

[0003] To solve the above problems, a single-lumen endobronchial tube was disclosed in the Chinese utility model patent with publication number CN202777367U. Compared with the traditional double-lumen endobronchial tube, the single-lumen endobronchial tube is simple to manufacture, thinner in outer diameter, simpler and easier to operate, can reduce or reduce damage to the glottis and airway mucosa, has a thicker inner diameter, is conducive to ventilation under the same ventilation conditions, and is suitable for patients with difficulty in single-lung ventilation. However, the above-mentioned endobronchial tube position cannot be monitored in real time during use, and it is difficult to determine whether the endobronchial tube is placed in the required main bronchus, which reduces the success rate of intubation. Even if bronchial fiberoptic bronchoscopes can be used for auxiliary observation, the operation is cumbersome.

[0004] How to solve the above problems has become a technical problem that needs to be solved urgently. Utility Model Content

[0005] The utility model aims to provide a visual single-lumen bronchial intubation tube which is easy to operate, can improve the success rate of intubation and reduce the damage to the airway mucosa of patients.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a visual single-lumen endobronchial cannula, comprising a tube body, a blocking balloon being arranged on the inner wall of the distal end of the tube body, and a tracheal cuff and a bronchial cuff being arranged in sequence on the outer wall of the tube body gradually approaching the distal end thereof, the tracheal cuff, the bronchial cuff and the blocking balloon being all connected to a balloon inflation system, and further comprising a camera system and at least one side vent, the side vent being opened on the side wall of the tube body and being located between the tracheal cuff and the bronchial cuff, the lens end of the camera system being located below the inner side of the side vent and shooting outwards through the side vent.

[0008] Furthermore, the camera system includes a camera and a lens washing device. The camera is arranged in the tube body and the lens end of the camera is located below the inner side of the side air vent and shoots outward through the side air vent. The above-mentioned camera is connected to the display terminal by wire or wireless means. The distal end of the lens washing device is located at the distal end of the tube body and the liquid outlet end of the lens washing device is aligned with the lens end of the camera.

[0009] Furthermore, the lens flushing device includes two flushing and suction pipes respectively connected to the external liquid supply device and the negative pressure device, the distal ends of the two flushing and suction pipes extend along the length direction of the tube body to the distal end of the tube body and the distal ends of the two flushing and suction pipes are aligned with the lens end of the camera.

[0010] Furthermore, the tube body includes a main body, a first bronchial body, and a second bronchial body that are connected in sequence, the tracheal cuff is fixedly sleeved on the outer side of the distal end of the main body, the side vent is opened on the first bronchial body, the camera is arranged in the first bronchial body, and the blocking balloon and bronchial cuff are respectively fixedly arranged on the inner and outer sides of the second bronchial body.

[0011] Furthermore, reinforcing ribs are provided on the inner wall of the first bronchial body, and a groove for storing the blocking balloon is provided on the inner wall of the second bronchial body.

[0012] Furthermore, the cuff inflation system includes three inflation tubes, the proximal ends of the three inflation tubes are respectively connected to the tracheal cuff, the bronchial cuff, and the blocking balloon, and the distal ends of the three inflation tubes are connected to inflation connectors.

[0013] Furthermore, a terminal is provided at the distal end of the tube body, and the terminal is made of soft material.

[0014] Furthermore, the length of the end is greater than 0.5 mm.

[0015] Furthermore, the proximal end of the tube body is connected with a cannula joint.

[0016] Furthermore, the edge of the side vent hole adopts an R-arc chamfer structure.

[0017] Due to the adoption of the above structure, the utility model has the following beneficial effects:

[0018] The utility model forms a single-lumen bronchial catheter structure with a thinner outer diameter and simple and easy operation by arranging a tracheal cuff, a bronchial cuff, and a blocking balloon on the tube body and opening a side vent on the tube body. In addition, a camera system is arranged, and during the tube placement process, the camera system can monitor the internal condition of the airway in real time through the side vent, effectively saving the use of bronchial fiberscope, thereby reducing the difficulty of operation, improving the success rate of intubation, and reducing airway mucosal damage.

[0019] The present invention will become more clear through the following description in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the internal structure of the remote display of the utility model;

[0023] Figure 3 It is a schematic diagram of the far end of the present invention without showing the internal structure;

[0024] Figure 4 It is the AA cross-sectional view of the present utility model. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Please refer to Figures 1 to 4The utility model provides a visual single-lumen endobronchial cannula, comprising a tube body 1, a blocking balloon 6 is arranged on the inner wall of the distal end of the tube body 1, and a tracheal cuff 2 and a bronchial cuff 3 are arranged on the outer wall of the tube body 1 in sequence, gradually approaching the distal end thereof, the tracheal cuff 2, the bronchial cuff 3, and the blocking balloon 6 are all connected to a balloon inflation system 5, and also includes a camera system 7, at least one side vent 14, the side vent 14 is used to ventilate a single lung, and the number and shape of the side vent 14 are not limited. limit; the side vent 14 is opened on the side wall of the tube body 1 and the side vent 14 is located between the tracheal cuff 2 and the bronchial cuff 3, the lens end of the camera system 7 is located below the inner side of the side vent 14 and shoots outward through the side vent 14, so that the internal condition of the airway can be monitored in real time without the help of a bronchial fiberoptic bronchoscope, effectively avoiding secondary intubation, and reducing damage to the patient's airway mucosa, saving operation time, reducing medical expenses, and improving the reliability of patient treatment. According to clinical and process requirements, the tube body 1 is composed of two or more sections of the tube body, each section of the tube body can be connected as a whole by bonding, welding or injection molding, and each section of the tube body can be made of the same or different materials; the bronchial cuff 3 is used to block the bronchial part, the tracheal cuff 2 is used to block the main trachea, and the blocking balloon 6 is used to control the ventilation of the bronchial part. When single-lung ventilation is performed, the blocking cuff 6 is inflated by the cuff inflation system 4 to block the tube body 1 , and at this time, the anesthetic gas enters the other lung through the side vent 14 .

[0027] In the utility model, the camera system 7 includes a camera and a lens washing device 8. The camera is arranged in the tube body 1 and the lens end of the camera is located below the inner side of the side vent 14 and shoots outward through the side vent 14. The above-mentioned camera is connected to the display terminal by wire or wireless means. The distal end of the lens washing device 8 is located at the distal end of the tube body 1 and the liquid outlet end of the lens washing device 8 is aligned with the lens end of the camera.

[0028] In the present invention, the lens washing device 8 comprises two washing and suction pipes respectively connected to an external liquid supply device and a negative pressure device, the distal ends of the two washing and suction pipes are extended to the distal end of the tube body 1 along the length direction of the tube body 1, and the distal ends of the two washing and suction pipes are aligned with the lens end of the camera. When in use, one of the washing and suction pipes is connected to the liquid supply device, and the cleaning liquid is washed out from the distal end of the washing and suction pipe to clean the lens of the camera, and the other washing and suction pipe is connected to the negative pressure device to provide negative pressure to suck away the washing liquid.

[0029] In the utility model, the tube body 1 includes a main tube body 11, a first bronchial tube body 12, and a second bronchial tube body 13 which are connected in sequence. The tracheal cuff 2 is fixedly sleeved on the outer side of the distal end of the main tube body 11. The side vent 14 is opened on the first bronchial tube body 12. The camera is arranged in the first bronchial tube body 12. The blocking balloon 6 and the bronchial cuff 3 are fixedly arranged on the inner and outer sides of the second bronchial tube body 13 respectively.

[0030] In the utility model, reinforcing ribs 15 are arranged on the inner wall of the first bronchial body 12, and the reinforcing ribs 15 are mainly distributed around the side vents 14, and the number and shape of the reinforcing ribs 15 are not limited; a groove for storing the blocking balloon 6 is arranged on the inner wall of the second bronchial body 13. When bilateral lung ventilation is implemented, the blocking balloon 6 is in a collapsed state and stored in the groove, which can effectively expand the inner diameter of the tube body 1 and greatly improve the airflow and the passability of other instruments.

[0031] In the present invention, the cuff inflation system 5 comprises three inflation tubes, the proximal ends of the three inflation tubes are respectively connected to the tracheal cuff 2, the bronchial cuff 3 and the blocking balloon 6, and the distal ends of the three inflation tubes are connected to inflation connectors.

[0032] In the present invention, a tip 9 is provided at the distal end of the tube body 1, and the tip 9 is made of soft material. The tip 9 is softer than the tube body 1, and can effectively reduce the damage to the respiratory tract during tube placement.

[0033] In the present invention, the length of the end head 9 is greater than 0.5 mm.

[0034] In the utility model, the proximal end of the tube body 1 is connected with a cannula connector 4 for connecting to an external breathing tube.

[0035] In the present invention, the edge of the side vent hole 14 adopts an R-arc chamfer structure, which can reduce the scraping of the edge of the side vent hole 14 on human tissue during the movement of the tube body 1 in the airway.

[0036] When the utility model is in use, under the real-time monitoring of the camera system 7, the distal end of the tube body 1 is placed in a preset position in the airway, and then the bronchial cuff 3, the tracheal cuff 2, and the blocking balloon 6 are respectively connected through three inflation tubes, so that the anesthetic gas can only enter the other lung through the side vent 14 to achieve single-lung ventilation; during the process of tube placement, if the lens of the camera is attached by the secretions in the airway and the line of sight is disturbed, one of the flushing and suction pipes is connected to the liquid supply device, and the cleaning liquid can be flushed out from the distal end of the flushing and suction pipe to clean the lens of the camera, and the other flushing and suction pipe is connected to the negative pressure device to provide negative pressure to suck away the flushing liquid after cleaning, so as to achieve the effect of simultaneous flushing and suction. Therefore, the utility model is easy to operate, can improve the success rate of intubation, and reduce the damage to the patient's airway mucosa.

[0037] The above describes the preferred embodiments of the utility model. It should be understood that the utility model is not limited to the above-mentioned specific implementation methods, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the utility model without departing from the scope of the technical solution of the utility model, or modify them into equivalent embodiments of equivalent changes, which does not affect the essential content of the utility model. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of protection of the technical solution of the utility model.

Claims

1. A visual single-lumen endobronchial cannula, comprising a tube body (1), a blocking balloon (6) is arranged on the inner wall of the distal end of the tube body (1), and a tracheal cuff (2) and a bronchial cuff (3) are arranged on the outer wall of the tube body (1) in sequence and gradually approach the distal end thereof, wherein the tracheal cuff (2), the bronchial cuff (3) and the blocking balloon (6) are all connected to a balloon inflation system (5); characterized in that: It also comprises a camera system (7) and at least one side vent (14), wherein the side vent (14) is opened on the side wall of the tube body (1) and the side vent (14) is located between the tracheal cuff (2) and the bronchial cuff (3), and the lens end of the camera system (7) is located below the inner side of the side vent (14) and shoots outward through the side vent (14).

2. A visual single-lumen endobronchial tube as claimed in claim 1, characterized in that: The camera system (7) comprises a camera and a lens washing device (8), wherein the camera is arranged in the tube body (1) and the lens end of the camera is located below the inner side of the side vent hole (14) and shoots outward through the side vent hole (14), the camera is connected to the display terminal via a wired or wireless method, the distal end of the lens washing device (8) is located at the distal end of the tube body (1) and the liquid outlet end of the lens washing device (8) is aligned with the lens end of the camera.

3. A visual single-lumen endobronchial tube as claimed in claim 2, characterized in that: The lens washing device (8) comprises two washing and suction pipes respectively connected to an external liquid supply device and a negative pressure device, the distal ends of the two washing and suction pipes both extend along the length direction of the tube body (1) to the distal end of the tube body (1), and the distal ends of the two washing and suction pipes are both aligned with the lens end of the camera.

4. A visual single-lumen endobronchial tube as claimed in claim 2 or 3, characterized in that: The tube body (1) comprises a main tube body (11), a first bronchial tube body (12), and a second bronchial tube body (13) which are connected in sequence; the tracheal cuff (2) is fixedly sleeved on the outer side of the distal end of the main tube body (11); the side vent (14) is provided on the first bronchial tube body (12); the camera is arranged in the first bronchial tube body (12); and the blocking balloon (6) and the bronchial cuff (3) are fixedly arranged on the inner and outer sides of the second bronchial tube body (13), respectively.

5. A visual single-lumen endobronchial tube as claimed in claim 4, characterized in that: A reinforcing rib (15) is provided on the inner wall of the first bronchial body (12), and a groove for storing the blocking balloon (6) is provided on the inner wall of the second bronchial body (13).

6. A visual single-lumen endobronchial tube according to any one of claims 1 to 3, characterized in that: The cuff inflation system (5) comprises three inflation tubes, the proximal ends of the three inflation tubes are respectively connected to the tracheal cuff (2), the bronchial cuff (3) and the blocking balloon (6), and the distal ends of the three inflation tubes are connected to inflation connectors.

7. A visual single-lumen endobronchial tube according to any one of claims 1 to 3, characterized in that: The distal end of the tube body (1) is provided with an end cap (9), and the end cap (9) is made of a soft material.

8. A visual single-lumen endobronchial tube as claimed in claim 7, characterized in that: The length of the end (9) is greater than 0.5 mm.

9. A visual single-lumen endobronchial tube according to any one of claims 1 to 3, characterized in that: The proximal end of the tube body (1) is connected with a cannula connector (4).

10. A visual single-lumen endobronchial tube as claimed in claim 5, characterized in that: The edge of the side vent hole (14) adopts an R-arc chamfered structure.

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