Operating tube of nasal bronchoscope

Abstract

The utility model provides a nasal bronchoscope operating tube which comprises an operating tube, and the rear end of the operating tube is connected with a first connector of a tee joint in a sealing mode. A second interface, on the same axis with the first interface, of the tee joint is a bronchoscope inlet, and the second interface is detachably connected with an end cover; a third interface of the tee joint is connected with a high-flow breathing humidifying therapeutic apparatus through a high-flow catheter; the operation tube which is inserted through the nasal cavity and has the front end arranged above the epiglottis is used as an entry channel of the bronchoscope; at least one air hole is formed in the side wall of the front end of the operation tube. The nasal bronchoscope operation tube serves as a bronchoscope operation pipeline, and the bleeding risk caused by nasal mucosa injury caused by movement of a bronchoscope in the operation process is reduced; meanwhile, the device can be connected with a high-flow humidifying oxygen therapy instrument, the oxygen deficit risk of the patient in the operation process is reduced, and particularly the oxygen deficit risk caused by upper airway obstruction easily occurring to some obstructive sleep respiratory syndrome and tongue retrograde falling patients is reduced.

Description

Technical Field

[0001] This utility model relates to surgical instruments for bronchoscopy, specifically to a transnasal bronchoscopy operating tube. Background Technology

[0002] Bronchoscopy is a medical examination tool that is widely used in the diagnosis and treatment of respiratory diseases, especially in the diagnosis of lung cancer, lung infections, bronchiectasis, and other diseases.

[0003] The nasal cavity is one of the common access routes for bronchoscopy. The rich blood flow to the nasal cavity means that even minor injury can lead to significant bleeding. Some patients, due to poor tolerance to the procedure, significant adverse reactions such as resistance and coughing, or excessive secretions repeatedly obstructing the bronchoscopy, require multiple nasal insertions and exits, increasing the risk of nasal mucosal damage and even massive bleeding. Furthermore, during bronchoscopy, sedation, anesthesia, partial airway obstruction by the bronchoscopy itself, increased airway resistance, mechanical stimulation or injury, and procedures such as bronchoalveolar lavage can all lead to hypoxia, increasing the risks of bronchoscopy. This invention aims to reduce the risk of nasal mucosal damage and bleeding during nasal bronchoscopy and the risk of hypoxia during bronchoscopy. Utility Model Content

[0004] To address the shortcomings of the aforementioned technologies, this invention provides a nasal bronchoscopy operating tube, aiming to reduce the risks of nasal cavity injury and bleeding during nasal bronchoscopy, as well as the risk of hypoxia during bronchoscopy. The specific solution is as follows:

[0005] A transnasal bronchoscopy operating tube, comprising an operating tube, the rear end of which is sealed to the first interface of a three-way valve.

[0006] The second port, which is on the same axis as the first port, is the inlet of the bronchoscope. The second port is detachably connected to an end cap.

[0007] The third port of the three-way valve is connected to a high-flow humidification therapy device via a high-flow catheter;

[0008] An operating tube inserted into the nasal cavity with its tip positioned above the epiglottis serves as the access channel for the bronchoscope.

[0009] The operating tube has an inner diameter of 4-7 mm and a length of 15-17 cm. The front end of the operating tube has a beveled opening, and the front side wall of the operating tube has at least one air hole.

[0010] Furthermore, the front end of the operating tube is provided with a rounded, blunt nose.

[0011] Furthermore, both the operating tube and the blunt nose are made of silicone.

[0012] Furthermore, the blunt nose is more flexible than the rest of the operating tube.

[0013] Furthermore, the first interface is connected to the rear end of the operating tube via a pagoda connector, and a length marker is provided on the outer diameter of the operating tube.

[0014] Furthermore, the tee is made of rigid plastic.

[0015] This invention features a cleverly designed nasal bronchoscope operating tube. By integrating the operating tube, three-way valve, and high-flow humidification therapy device, it significantly improves the safety and comfort of bronchoscopy. Specifically, its advantages are reflected in the following aspects:

[0016] 1) The operating tube serves as the nasal insertion channel for the bronchoscope, effectively avoiding interference from the tongue in the oral cavity. This is especially beneficial for patients with posterior tongue displacement, making the insertion of the bronchoscope smoother. At the same time, the bronchoscope, as a protective cannula for the bronchus in the body, can effectively reduce damage to the nasal mucosa.

[0017] 2) The oblique opening and side vents at the tip of the operating tube not only facilitate smooth insertion of the bronchoscope but also maintain airway patency during the examination, reducing the risk of hypoxia due to airway obstruction. In particular, the oblique opening design makes it easier for the bronchoscope to pass through the operating tube during insertion, reducing mechanical irritation and damage to the airway. The side vents allow airflow through the side openings even when the main opening of the operating tube is blocked, thus maintaining patient ventilation.

[0018] 3) The rounded, blunt tip of the operating tube further enhances operational safety. The blunt tip is softer than the rest of the operating tube, reducing friction and damage when in contact with the nasal cavity and airway mucosa, thus lowering the risk of nasal bleeding. Simultaneously, the use of silicone material ensures the operating tube has good biocompatibility and durability.

[0019] 4) The inner diameter and length of the operating tube are carefully designed to ensure sufficient channel space for the bronchoscope to pass through, while also ensuring an appropriate insertion depth for easy observation and operation by the doctor.

[0020] 5) This invention also connects the high-flow catheter to the high-flow humidification therapy device via a three-way connector, providing the patient with a continuous and stable oxygen supply during the examination. This design not only effectively avoids various risks of hypoxia during the procedure and ensures the safety of the operation, but also improves patient comfort, making the entire examination process smoother and safer.

[0021] In summary, the nasal bronchoscope operating tube of this invention, through a series of innovative designs, successfully solves the problems of nasal cavity injury and bleeding and hypoxia risk in traditional bronchoscopy, providing a safer and more effective tool for the diagnosis and treatment of respiratory diseases, and has broad prospects for clinical application. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a structural diagram of a nasal bronchoscope operating tube according to Embodiment 1 of this utility model;

[0024] Figure 2 This is a schematic diagram of the end of the nasal bronchoscopy operating tube in Example 1.

[0025] Figure 3 This is a side view of a nasal bronchoscope operating tube according to Embodiment 2 of the present invention.

[0026] Figure 4 This is a schematic diagram of a nasal bronchoscope with a blunt nose at the end of the operating tube in Example 2. Detailed Implementation

[0027] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0028] To fully understand this utility model, detailed steps and structures will be presented in the following description to illustrate the technical solution of this utility model. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0029] Example 1

[0030] Reference Figure 1-2As shown, this utility model provides a nasal bronchoscope operating tube, which includes an operating tube 10. The rear end of the operating tube 10 is sealed to the first interface 21 of a three-way valve 20. The second interface 22 of the three-way valve 20, which is coaxial with the first interface 21, serves as the inlet for the bronchoscope. An end cap 24 is detachably connected to the second interface 22. The third interface 23 of the three-way valve 20 is connected to a high-flow humidification therapy device via a high-flow catheter 25.

[0031] The operating tube 10, inserted into the nasal cavity and positioned above the epiglottis, serves as the entry channel for the bronchoscope. Therefore, the diameter of the operating tube 10 needs to be larger than the outer diameter of the bronchoscope; preferably, the inner diameter of the operating tube 10 is 4–7 mm. Currently, the outer diameter of commercially available bronchoscopes varies from 3.1 to 6.1 mm. This invention, with an inner diameter of 4–7 mm for the operating tube 10, can meet the insertion requirements of almost all commercially available bronchoscopes. Simultaneously, it is slightly larger than the diameter of the bronchoscope, ensuring that even after the bronchoscope is inserted into the operating tube 10, there is still some space inside the operating tube 10 for oxygen delivery. The length of the operating tube 10 is 15–17 cm, which meets the nasal insertion depth requirements of all patients. The front end of the operating tube 10 has a beveled opening 11, serving as both the bronchoscope outlet and a high-flow-rate oxygen outlet.

[0032] At least one air hole 12 is provided on the front side wall of the operating tube 10. The operating tube 10 has an additional air hole 12 at the front end. If the oblique opening 11 of the operating tube is blocked by sputum or soft tissue, airflow can still occur through the air hole 12 to facilitate the normal introduction of oxygen.

[0033] The first interface 21 is connected to the rear end of the operating tube 10 via a pagoda connector, facilitating adjustment of the overall tube length. A length marker is provided on the outer diameter of the operating tube 10. The length allows for determination of the insertion depth of the operating tube 10, ensuring accurate positioning within the patient's airway. Simultaneously, the pagoda connector design not only secures the connection between the operating tube 10 and the first interface 21 but also facilitates adjustments by medical personnel to the length between the tip of the operating tube 10 and the tee, enabling precise, effective, and safe insertion and removal. Furthermore, the pagoda connector design further ensures a tight seal between the two connections.

[0034] Preferably, the material of the tee 20 is rigid plastic, which is easy to manufacture while ensuring strength and reducing cost.

[0035] Example 2

[0036] like Figure 3-4As shown, the difference between this embodiment and Embodiment 1 is that the front end of the operating tube 10 is provided with a rounded blunt nose 13. When the operating tube 10 is inserted into the nasal cavity, it can reduce the stimulation and damage to the soft tissues in the body. Both the operating tube 10 and the blunt nose 13 are made of silicone. More preferably, the blunt nose 13 is softer than the rest of the operating tube 10, which can further reduce the stimulation and damage to the nasal mucosa.

[0037] The operation method of using a nasobronchoscope operating tube according to Example 1 or Example 2 is as follows:

[0038] 1) Local anesthesia is achieved by applying lidocaine aerosol or using a jet nebulizer to the patient's oropharynx and nasal cavity.

[0039] 2) The patient lies flat, and furazolidone nasal drops are instilled into both nostrils to constrict blood vessels, followed by tetracaine gel to lubricate the nasal cavity.

[0040] 3) Connect the patient to high-flow humidified oxygen therapy for pre-oxygenation.

[0041] 4) Perform sedation / pre-anesthesia induction on the patient. After the patient reaches the predetermined sedation level, insert the lubricated operating tube into the nasal cavity and reach above the epiglottis. Observe the length scale on the surface of the operating tube during the insertion process to ensure that it is inserted into the appropriate position, that is, the end of the operating tube 10 is located above the epiglottis.

[0042] 5) Connect the high-flow humidified respiratory therapy device to the third interface 23 through the pipe, and remove the nasal oxygen tube for high-flow humidified oxygen therapy.

[0043] 6) Open the end cap 24 of the second interface 22, insert the bronchoscope into the trachea through the three-way valve 20 and the operating tube 10, and then perform the bronchoscope operation.

[0044] 7) After completing the procedure, wake the patient, remove the bronchoscope, disconnect the high-flow humidification therapy device, and remove the nasobronchoscope operating tube.

[0045] This improved structure is simple, rationally designed, easy to use, and widely applicable. Before bronchoscopy, the operating tube is inserted into the nasal cavity above the epiglottis. The flexible silicone operating tube serves as the bronchoscopic operating channel, reducing bleeding caused by nasal mucosal damage during bronchoscopy movement. Furthermore, this device can be connected to a high-flow humidifier to ensure oxygen supply and reduce the risk of hypoxia during bronchoscopy. Especially for patients with obstructive sleep apnea syndrome or posterior tongue displacement, who are at high risk of upper airway obstruction and hypoxia after sedation / anesthesia before the procedure, this invention helps reduce the operational risks for such patients.

[0046] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above. Devices and structures not described in detail herein should be understood as being implemented in a conventional manner within the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this utility model using the disclosed methods and techniques, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. This does not affect the essential content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, still fall within the protection scope of the technical solution of this utility model.

Claims

1. A nasal bronchoscopy operating tube, characterized in that, The nasal bronchoscope operating tube includes an operating tube (10), the rear end of which is sealed to the first interface (21) of the three-way valve (20). The second interface (22) of the three-way connector (20) and the first interface (21) is on the same axis and is the inlet of the bronchoscope. The second interface (22) is detachably connected to an end cap (24). The third port (23) of the three-way connector (20) is connected to a high-flow humidification therapy device via a high-flow catheter (25); The operating tube (10) inserted from the nasal cavity with its tip positioned above the epiglottis serves as the entry channel for the bronchoscope; The operating tube (10) has an inner diameter of 4-7 mm and a length of 15-17 cm. The front end of the operating tube (10) is provided with a slanted opening (11), and the front end side wall of the operating tube (10) is provided with at least one air hole (12).

2. The nasal bronchoscopy operating tube as described in claim 1, characterized in that, The front end of the operating tube (10) is provided with a rounded blunt nose (13).

3. The nasal bronchoscopy operating tube as described in claim 2, characterized in that, Both the operating tube (10) and the blunt nose (13) are made of silicone.

4. The nasal bronchoscopy operating tube as described in claim 3, characterized in that, The blunt nose (13) is more flexible than the rest of the operating tube (10).

5. The nasal bronchoscopy operating tube as described in claim 1, characterized in that, The first interface (21) is connected to the rear end of the operating tube (10) via a pagoda connector, and a length mark is set on the outer diameter of the operating tube (10).

6. The nasal bronchoscopy operating tube as described in claim 1, characterized in that, The tee (20) is made of rigid plastic.

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