CN223490208U - Nasal support bronchoscope operating tube - Google Patents

Abstract

This invention provides a nasal bronchoscope operating tube, comprising an operating tube, the rear end of which is sealed to the first interface of a three-way valve; a second interface of the three-way valve, coaxial with the first interface, serves as the inlet for the bronchoscope, and is detachably connected to an end cap; a third interface of the three-way valve is connected to a high-flow humidified oxygen therapy device via a high-flow catheter; the operating tube, inserted through the nasal cavity and positioned above the epiglottis, serves as the entry channel for the bronchoscope; the front end of the operating tube has an oblique opening, and at least one air hole is provided on the front sidewall. This nasal bronchoscope operating tube, as a bronchoscope operating channel, reduces the risk of bleeding caused by nasal mucosal damage during bronchoscope movement; simultaneously, it can be connected to a high-flow humidified oxygen therapy device, reducing the risk of patient hypoxia during operation, especially for patients with obstructive sleep apnea syndrome or tongue retraction, who are prone to upper airway obstruction and hypoxia.

Description

Nasal support bronchoscope operating tube

Technical Field

The utility model relates to a surgical instrument of a bronchoscope, in particular to a nasal bronchoscope operating tube.

Background

Bronchoscopy is a medical examination tool, and the technology is widely applied to diagnosis and treatment of respiratory diseases, and particularly plays an important role in diagnosing lung cancer, lung infection, bronchiectasis and other diseases.

Nasal cavity is one of the common pathways for bronchoscopy. The abundant blood flow of the nasal cavity is perfused, which also means that minor injury can lead to massive bleeding. Part of patients are difficult to tolerate, resist adverse reactions such as choking cough and the like or repeatedly block the bronchoscope due to more secretions and the like, and the nasal cavity needs to be accessed for multiple times, so that the risk of nasal mucosa injury and even massive hemorrhage is easily increased. In addition, in bronchoscopy, hypoxia can be caused by sedation, anesthesia, partial obstruction of the airway by the bronchoscope itself, increased airway resistance, mechanical irritation or injury, bronchoalveolar lavage and other operations, and the risk of bronchoscopy is increased. The utility model is expected to reduce the risk of nasal mucosa injury bleeding through nasal bronchoscopy and the risk of hypoxia in bronchoscopy.

Disclosure of utility model

Based on the defects in the background technology, the utility model provides a transnasal bronchoscope operation tube, which is expected to reduce the risk of nasal injury and hemorrhage during transnasal bronchoscopy and the risk of hypoxia during bronchoscopy. The specific scheme is as follows:

a transnasal bronchoscope operating tube, which comprises an operating tube, wherein the rear end of the operating tube is in sealing connection with a first interface of a tee joint;

The second interface of the tee joint and the first interface on the same axis is a lens inlet of the bronchoscope, and the second interface is detachably connected with an end cover;

The third interface of the tee joint is connected with a high-flow respiratory humidification therapeutic apparatus through a high-flow conduit;

An operating tube inserted from the nasal cavity and with the front end arranged above the epiglottis is used as an entrance channel of the bronchoscope;

Wherein, the internal diameter of operating tube is 4~7mm, and length is 15~17cm, and the front end of operating tube is equipped with the chamfer opening, and at least one gas pocket has been seted up to the front end lateral wall of operating tube.

Further, the front end tip of the operating tube is provided with a round blunt nose.

Furthermore, the operating tube and the blunt nose are both made of silica gel.

Further, the softness of the blunt nose is greater than the softness of the rest of the operating tube.

Further, the first interface is connected with the rear end of the operation pipe through a pagoda joint, and a length mark is arranged on the outer diameter of the operation pipe.

Further, the tee joint is made of hard plastic.

The nasal bronchoscope operation tube disclosed by the utility model is ingenious in design, and the safety and the comfort of bronchoscopy are obviously improved by integrating the operation tube, the tee joint and the connection of the high-flow respiratory humidification therapeutic instrument. In particular, its advantages are represented by the following aspects:

1) The operation tube is used as a nasal cavity placement channel of the bronchoscope, so that the interference of the tongue in the oral cavity is effectively avoided, and particularly, the operation tube is aimed at a part of patients with retrolingual drop, so that the insertion process of the bronchoscope is smoother, and meanwhile, the bronchoscope is used as a protective sleeve of the bronchoscope in the body, so that the damage of nasal mucosa can be effectively reduced;

2) The chamfer opening and the side wall air hole arranged at the front end of the operation tube are not only convenient for the smooth entry of the bronchoscope, but also can maintain the smoothness of the airway in the examination process and reduce the hypoxia risk caused by airway obstruction. In particular, the design of the beveled opening allows the bronchoscope to more easily pass through the operating tube during insertion, reducing mechanical irritation and damage to the airway. The design of the side wall air hole can still pass through the side hole when the main opening of the operation pipe is blocked, and air flow is allowed to pass through, so that ventilation of a patient is maintained.

3) The round blunt nose design of the front end tip of the operation tube further improves the safety of operation. The softness of the blunt nose is larger than that of the rest parts of the operation tube, and friction and damage can be reduced when the blunt nose is contacted with nasal cavity and airway mucous membrane, so that the risk of nasal cavity bleeding is reduced. Meanwhile, the selection of the silica gel material ensures that the operation tube has good biocompatibility and durability.

4) The inner diameter and the length of the operation tube are carefully designed, so that not only is enough channel space ensured for the bronchoscope to pass, but also the insertion depth is ensured to be moderate, and the operation and the observation by doctors are facilitated.

5) The utility model also connects the high-flow conduit with the high-flow respiratory humidification therapeutic apparatus through the tee joint structure, and provides continuous and stable oxygen supply for patients in the examination process. The design not only can effectively avoid various hypoxia risks in the operation process and ensure the operation safety, but also can improve the comfort level of a patient, so that the whole inspection process is more stable and safe.

In conclusion, the nasal bronchoscope operation tube successfully solves the problems of nasal injury bleeding, hypoxia risk and the like in the traditional bronchoscopy through a series of innovative designs, provides a safer and more effective tool for diagnosing and treating respiratory diseases, and has wide clinical application prospect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a schematic view showing a nasal bronchoscope tube according to the present utility model according to a first embodiment;

FIG. 2 is a schematic end view of a transnasal bronchoscope tube according to a first embodiment;

FIG. 3 is a side view of a transnasal bronchoscope tube according to the present utility model according to a second embodiment;

FIG. 4 is a schematic view of a nose-blunting view of a distal end of a transnasal bronchoscope according to a second embodiment.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present utility model. It will be apparent, however, to one skilled in the art that the utility model may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the utility model.

In order to provide a thorough understanding of the present utility model, detailed steps and detailed structures will be presented in the following description in order to explain the technical solution of the present utility model. Preferred embodiments of the present utility model are described in detail below, however, the present utility model may have other embodiments in addition to these detailed descriptions.

Example 1

Referring to fig. 1-2, the present utility model provides a transnasal bronchoscope tube, which comprises a tube 10, wherein the back end of the tube 10 is connected with a first port 21 of a tee joint 20 in a sealing way. The second interface 22 of the tee joint 20 and the first interface 21 on the same axis is a lens inlet of a bronchoscope, the second interface 22 is detachably connected with an end cover 24, and the third interface 23 of the tee joint 20 is connected with a high-flow respiratory humidification therapeutic apparatus through a high-flow conduit 25.

The operation tube 10 inserted from the nasal cavity and having its front end disposed above the epiglottis is used as an entrance passage of the bronchoscope, so that the aperture of the operation tube 10 needs to be larger than the outer diameter of the bronchoscope, and preferably the inner diameter of the operation tube 10 is 4 to 7mm. The outer diameter of the bronchoscope on the market is not equal to 3.1-6.1 mm, the inner diameter of the operation tube 10 is 4-7 mm, so that the requirement of placing nearly all bronchoscopes on the market can be met, and the diameter of the bronchoscope is slightly larger than that of the bronchoscope, so that even if the bronchoscope is inserted into the operation tube 10, a part of gaps are reserved inside the operation tube 10 to serve as oxygen transmission channels. The length of the operation tube 10 is 15-17 cm, and the requirements of the nasal cavity implantation depth of all patients can be met. The front end of the operating tube 10 is provided with a beveled opening 11, on the one hand as an outlet for the bronchoscope and on the other hand as an outlet for high flow of oxygen.

At least one air hole 12 is formed in the side wall of the front end of the operation tube 10, and the operation tube 10 is provided with an additional air hole 12 at the front end, so that if the beveled opening 11 of the operation tube is blocked by sputum or soft tissues, air flow can still occur through the air hole 12, and oxygen can be conveniently and normally introduced.

The first interface 21 is connected with the rear end of the operation pipe 10 through a pagoda joint, so that the length of the whole pipe body can be conveniently adjusted, and a length mark is arranged on the outer diameter of the operation pipe 10. The depth of insertion of the tube 10 can be determined by the length, ensuring that its position in the patient's airway is accurate. Meanwhile, the design of the pagoda joint not only stabilizes the connection between the operation tube 10 and the first interface 21, but also facilitates the medical staff to adjust the length between the head end of the operation tube 10 and the tee joint, and performs accurate, effective and safe plugging operation, and meanwhile, the sealing performance of the connection between the operation tube 10 and the tee joint can be further and effectively ensured through the design of the pagoda joint.

Preferably, the tee 20 is made of hard plastic, which is convenient to manufacture, ensures strength and reduces cost.

Example two

As shown in fig. 3 to 4, this embodiment differs from the first embodiment in that the distal tip of the operating tube 10 is provided with a rounded blunt nose 13. When the operation tube 10 is inserted from the nasal cavity, the irritation and damage to the soft tissue in the body can be reduced. The operation tube 10 and the blunt nose 13 are made of silica gel, and further preferably, the softness of the blunt nose 13 is softer than the rest parts of the operation tube 10, so that the irritation and damage to nasal mucosa can be further reduced.

The operation method of the transnasal bronchoscope operation tube using the first embodiment or the second embodiment is as follows:

1) The patient's oropharynx and nasal cavity are locally atomized by lidocaine aerosol or jet atomizer, and are locally anesthetized.

2) The patient lies on the back, and the nasal drops of the furosemide are dripped into the nasal cavities on both sides to shrink blood vessels, and then the tetracaine gel is dripped into the nasal cavities to lubricate the nasal cavities.

3) The patient is connected with high flow humidified oxygen therapy for preoxygenation.

4) The patient is sedated/pre-anesthetized, and after the patient reaches a predetermined level of sedation, the lubricant-coated tube is placed from the nasal cavity over the epiglottis, and the length scale on the tube surface is observed during insertion to ensure placement in place, i.e., the end of tube 10 is positioned over the epiglottis.

5) The high-flow respiratory humidification therapeutic apparatus is connected with the third interface 23 through a pipeline, and a nasal high-flow humidification oxygen therapy nasal oxygen tube is taken off.

6) The end cap 24 of the second port 22 is opened and the bronchoscope is inserted into the trachea through the tee 20, the operating tube 10, and then the bronchoscope procedure is performed.

7) After the operation is finished, the patient is awakened, the bronchoscope is taken out, the high-flow respiratory humidification therapeutic apparatus is disconnected, and the nasal bronchoscope operation tube is pulled out.

The improved structure is simple, the design is reasonable, the use is convenient, and the application range is wide. Before bronchoscopy operation, firstly, the operation tube is placed into the nasal cavity to reach the upper part of the epiglottis, and the operation tube made of flexible silica gel is used as a bronchoscopy operation tube, so that bleeding caused by damage of the bronchoscope to nasal mucosa due to movement of the bronchoscope in bronchoscopy is reduced. In addition, the device can be connected with a high-flow respiratory humidification therapeutic apparatus, so that oxygen supply is ensured, and the risk of hypoxia in bronchoscopy is reduced. In particular, for some obstructive sleep-breathing syndrome and glossoptosis patients, the risk of hypoxia caused by upper airway obstruction is very likely to occur after sedation/anesthesia is applied before operation, and the utility model helps to reduce the risk of operation for such patients.

The preferred embodiments of the present utility model have been described above. It is to be understood that the utility model is not limited to the particular embodiments described above, in which the apparatus and structures not described in detail are to be understood as being embodied in a manner commonly understood in the art, and that many possible variations and modifications may be made to the technical solution of the utility model by any person skilled in the art using the methods and techniques disclosed above, or modified to equivalent embodiments without departing from the spirit of the utility model. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims (6)

1. The transnasal bronchoscope operation tube is characterized by comprising an operation tube (10), wherein the rear end of the operation tube (10) is in sealing connection with a first interface (21) of a tee joint (20);

A second interface (22) of the tee joint (20) and the first interface (21) on the same axis is a lens inlet of the bronchoscope, and an end cover (24) is detachably connected with the second interface (22);

the third interface (23) of the tee joint (20) is connected with a high-flow respiratory humidification therapeutic apparatus through a high-flow conduit (25);

the operation tube (10) inserted from the nasal cavity and having the front end placed above the epiglottis is used as an entrance channel of the bronchoscope;

The inner diameter of the operation pipe (10) is 4-7 mm, the length of the operation pipe is 15-17 cm, a bevel opening (11) is formed in the front end of the operation pipe (10), and at least one air hole (12) is formed in the side wall of the front end of the operation pipe (10).

2. A transnasal bronchoscope tube according to claim 1, wherein the front end tip of the tube (10) is provided with a rounded blunt nose (13).

3. A transnasal bronchoscope tube according to claim 2, wherein the tube (10) and the blunt nose (13) are both made of silicone.

4. A transnasal bronchoscope tube according to claim 3, wherein said blunt nose (13) has a softness greater than the rest of said tube (10).

5. A transnasal bronchoscope tube according to claim 1, wherein said first port (21) is connected to a rear end of said tube (10) via a pagoda fitting, and a length indicator is provided on an outer diameter of said tube (10).

6. A transnasal bronchoscope tube according to claim 1, wherein the tee (20) is of rigid plastic.