CN219896683U

CN219896683U - Double-cavity tracheal cannula for implanting airway bifurcation stent

Info

Publication number: CN219896683U
Application number: CN202321038543.3U
Authority: CN
Inventors: 丁新民; 丁毓安
Original assignee: Beijing Shijitan Hospital
Current assignee: Beijing Shijitan Hospital
Priority date: 2023-05-04
Filing date: 2023-05-04
Publication date: 2023-10-27
Anticipated expiration: 2033-05-04

Abstract

The utility model provides a double-cavity trachea cannula for implanting an airway bifurcation stent, which relates to the technical field of medical auxiliary instruments and comprises a trachea cannula body, wherein the trachea cannula body is made of soft transparent materials, the trachea cannula body comprises a first lumen used as a pusher passage provided with the bifurcation stent and a second lumen used as a passage for inserting an electronic bronchoscope, the first lumen and the second lumen are arranged in close proximity, and the diameter of the first lumen is larger than that of the second lumen. According to the first lumen leading-in bracket pusher, the second lumen leading-in electronic bronchoscope can directly look at the position of the pusher and the release process of the bifurcation bracket in the whole process, so that the bifurcation bracket can be accurately released to a preset position.

Description

Double-cavity tracheal cannula for implanting airway bifurcation stent

Technical Field

The utility model relates to the technical field of medical auxiliary instruments, in particular to a double-cavity trachea cannula for implanting an airway bifurcation stent.

Background

The Y-shaped stent is commonly called as an airway bifurcation stent and is mainly used for treating the carina of the trachea and the nearby composite lesions of the left and right main bronchi, including stenosis or esophageal tracheae/bronchi fistula.

The severe choking of airway stenosis near the carina is life threatening, surgery is the most effective method, but such patients are largely intolerant of surgery or lose surgical opportunity due to poor general condition or advanced tumor. Bifurcated stent implantation is the best choice for this portion of the patient. If the bifurcation stent is accurately implanted, the dyspnea of the patient can be relieved immediately, the opportunity is provided for the subsequent treatment, and the effect of prolonging the survival time is achieved.

Esophageal tracheal/bronchial fistulae (esophagosugo trachel/bronchial fistula) are pathological traffic resulting from the collapse of the esophagus with the trachea and/or bronchi due to various benign and malignant factors. Malignant multiple secondary to advanced esophageal cancer, advanced lung cancer, mediastinal malignancy, thyroid cancer, etc., wherein the incidence of esophageal tracheostoma in esophageal cancer patients is 5% -15%, and the incidence of esophageal tracheostoma in lung cancer patients is about 1%. Because the alimentary canal content can enter the respiratory tract through the fistula, pulmonary infection which is difficult to control is caused, and the death rate is high. Although surgery is still the method of choice, most are not tolerant of surgery or lose surgical opportunity. For patients who are not suitable for surgery, endoscopic placement of a tracheal stent, or an esophageal stent, or both, is a viable and effective treatment.

Although the bifurcation stent implantation is an effective choice for the airway stenosis near the carina or the esophageal tracheobronchial fistula, the operation difficulty is high, and the bifurcation stent implantation is regulated by the national Wei Jian Committee on the clinical application management Specification of the respiratory endoscope diagnosis and treatment technology (2019 edition) to be a project according to four-level operation management, and the unit which can be developed at home and abroad is few. The metal bifurcation stent is placed in the pusher before implantation (the outer diameter of the pusher commonly used in China is 8.0 mm), and the metal bifurcation stent is released from the pusher to the airway.

The bifurcated stent implantation method is reported in the literature mainly by the following methods: the first is soft bronchoscope plus X-ray perspective implantation; the second method is a hard bronchoscope and soft bronchoscope implantation method; the third is others, such as laryngeal masks plus soft bronchoscopes.

First kind: soft bronchoscope + X-ray perspective implantation is currently the most commonly used method, a guide wire is placed through a soft trachea, then the guide wire is introduced into a pusher, the pusher is positioned and determined to a preset position by X-rays, and then a bifurcation stent in the pusher is released. The method is that X positioning is needed, doctors and patients have radiation exposure, the X positioning is not directly looked, risks such as guide wire displacement and inaccurate stent release position exist, and if a bifurcated stent is covered and is not placed at a preset position, suffocation death of patients can be seriously caused.

Second kind: the hard bronchoscope and soft bronchoscope method requires hard and skillful hard scope intubation techniques, and the pusher and the soft bronchoscope operate in the same duct, so that the technical requirements are high, and the comfort of a patient after hard scope intubation is poor.

Third kind: otherwise, the laryngeal mask is placed first and then positioned by a soft bronchoscope or X-rays, the method has certain difficulty when the pusher passes through the glottis, the operation is improper, the glottis edema and hemorrhage can be caused, meanwhile, the laryngeal mask is only used, a complete artificial airway is not established, once complications such as asphyxia and the like occur in the stent implantation process, the tracheal intubation is needed again, the risk is extremely high, and therefore, the method is rarely used at home and abroad.

Therefore, how to overcome the defects of the three bifurcation stent implantation methods described above is a technical problem to be solved by the person skilled in the art.

Disclosure of Invention

Therefore, the present utility model aims to provide a dual-lumen tracheal cannula for implantation of a bifurcated stent of an airway, so as to solve the technical problems of patient ray exposure, guide wire displacement, inaccurate stent release position, high technical requirements of hard lens cannula, poor patient comfort and other potential risks existing in the prior art that a bifurcated stent implantation method is adopted.

In order to achieve the above object, the present utility model provides a dual lumen tracheal cannula for airway bifurcation stent implantation, comprising a tracheal cannula body made of soft transparent material, the tracheal cannula body comprising a first lumen for a pusher passage with bifurcation stent and a second lumen for insertion of an electronic bronchoscope passage, the first lumen and the second lumen being disposed in close proximity, and the diameter of the first lumen being larger than the diameter of the second lumen.

According to an alternative embodiment, the endotracheal tube body includes an operating tube and a monitor tube, the first lumen being disposed within the operating tube and the second lumen being disposed within the monitor tube.

According to an alternative embodiment, the operating tube and the monitoring tube are integrally formed.

According to an alternative embodiment, the operating tube and the monitoring tube are glued.

According to an alternative embodiment, the device further comprises a deformable air bag, wherein the air bag is annular and is sleeved on the outer walls of the operation pipe and the monitoring pipe simultaneously.

According to an alternative embodiment, the air bag is provided with an air charging hole, the air charging hole is connected with an air charging pipe, and the air charging pipe is connected and communicated with the air bag.

According to an alternative embodiment, the end of the air charging tube is provided with an air charging nozzle.

According to an alternative embodiment, the soft transparent material of the tracheal cannula body is medical polyvinyl chloride.

The double-cavity trachea cannula for implanting the airway bifurcation stent provided by the utility model has the following technical effects:

the double-cavity tracheal cannula is mainly composed of a tracheal cannula body, the tracheal cannula body is made of soft transparent materials, the tracheal cannula body comprises a first cavity and a second cavity, the first cavity and the second cavity are arranged in close proximity, the diameter of the first cavity is larger than that of the second cavity, the first cavity is used as a passage of a pusher provided with a bifurcation stent, the second cavity is used as a passage for inserting an electronic bronchoscope.

Drawings

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

FIG. 1 is a schematic view showing the structure of a double lumen endotracheal tube according to embodiment 1 of the present utility model;

FIG. 2 is an enlarged view of the double lumen endotracheal tube A of FIG. 1;

FIG. 3 is a schematic view showing the structure of a double lumen tracheal cannula according to embodiment 2 of the present utility model;

fig. 4 is an enlarged schematic view of the double lumen tracheal tube B of fig. 3.

Wherein, fig. 1-4:

1. a tracheal cannula body; 11. an operating tube; 111. a first lumen; 12. a monitor tube; 121. a second lumen; 13. an air bag; 14. an inflation tube; 141. an air charging nozzle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

As described in the background art, three bifurcation stent implantation methods in the prior art are respectively: soft bronchoscope + X-ray fluoroscopy implantation; hard bronchoscope + soft bronchoscope implantation; others such as laryngeal masks plus soft bronchoscopes. These three bifurcated stent implants suffer from a number of drawbacks.

Based on the above, the utility model provides a double-cavity trachea cannula, because the trachea cannula body is made of soft transparent materials, the trachea cannula body can be bent, compared with a hard bronchoscope, the trachea cannula body is easier to insert into a target part during passing through a glottis, the patient has better comfort after operation, simultaneously, the bronchoscope and a pusher are operated in different pore canals and cannot be influenced mutually, and the pusher is protected by a first lumen so as not to influence the glottis.

The double-cavity trachea cannula of the utility model not only reduces the operation difficulty, is beneficial to the related patients to be treated in time, but also can rewrite the international operation standard and guide of the implantation of the airway bifurcation stent, and establishes the own standard of China.

The technical scheme of the present utility model will be described in detail with reference to specific examples 1 and 2.

Example 1:

the dual-cavity trachea cannula is used for implanting an airway bifurcation stent, wherein the dual-cavity trachea cannula comprises a trachea cannula body 1, the trachea cannula body 1 is made of soft transparent materials, and the soft transparent materials of the embodiment are preferably medical polyvinyl chloride.

Referring to fig. 1, the endotracheal tube body 1 of the present embodiment includes a first lumen 111 for use as a passage of a pusher equipped with a bifurcated stent and a second lumen 121 for use as a passage of inserting an electronic bronchoscope, the first lumen 111 and the second lumen 121 being disposed in close proximity, and the diameter of the first lumen 111 being larger than that of the second lumen 121.

Further, the endotracheal tube body 1 includes an operation tube 11 and a monitor tube 12, and the operation tube 11 and the monitor tube 12 of the present embodiment are integrally formed, as shown in fig. 2, where the integral formation is one-shot press forming, and in which a first lumen 111 is disposed in the operation tube 11, that is, the first lumen 111 constitutes a lumen of the operation tube 11, and a second lumen 121 is disposed in the monitor tube 12, that is, the second lumen 121 constitutes a lumen of the monitor tube 12.

The first lumen 111 of the operating tube 11 is preferably 9mm in diameter, and is used for guiding a wire or a bronchoscope to guide an endotracheal tube, and after the intubation to a predetermined target, is used as a passage for a pusher (outer diameter 8.0 mm) equipped with a bifurcated stent, or for connection to ventilator assist ventilation.

The second lumen 121 of the monitoring tube 12 is preferably 3.5mm in diameter for insertion of an electronic bronchoscope of less than 3.0mm in diameter, which can be used to monitor the position of the pusher and bifurcated stent.

The electronic bronchoscope of this embodiment may be a visual new electronic bronchoscope (SEESHEEN, EN-1029, outer diameter 2.8 mm), or an Olympus electronic bronchoscope (BF-XP 260F, outer diameter 2.8 mm).

In addition, in order to prevent the backflow of oxygen caused by a gap between the outer wall of the tracheal cannula body 1 and the inner wall of the trachea or bronchus during tracheal cannula, the tracheal cannula further comprises a deformable air bag 13, as shown in fig. 1, the air bag 13 is annular and is simultaneously sleeved on the outer walls of the operation tube 11 and the monitor tube 12 (the operation tube 11 and the monitor tube 12 are integrally formed), and when not in use, the air bag 13 is in a shrunken state, and when in use, the air bag 13 is in a bulged state.

Further, the air bag 13 is provided with an air charging hole, the air charging hole is connected with an air charging pipe 14, the air charging pipe 14 is connected and communicated with the air bag 13, and the tail end of the air charging pipe 14 is provided with an air charging nozzle 141, namely, an air pump charges the air bag 13 through the air charging pipe 14, so that the purpose of deforming the air bag 13 is achieved.

Example 2:

Referring to fig. 3, the endotracheal tube body 1 of the present embodiment includes a first lumen 111 for use as a passage of a pusher equipped with a bifurcated stent and a second lumen 121 for use as a passage of inserting an electronic bronchoscope, the first lumen 111 and the second lumen 121 being disposed in close proximity, and the diameter of the first lumen 111 being larger than that of the second lumen 121.

Further, the tracheal cannula body 1 comprises an operation tube 11 and a monitor tube 12, the operation tube 11 and the monitor tube 12 of the present embodiment are bonded, as shown in fig. 4, the bonding is performed by using medical glue, wherein a first lumen 111 is disposed in the operation tube 11, that is, the first lumen 111 forms a lumen of the operation tube 11, and a second lumen 121 is disposed in the monitor tube 12, that is, the second lumen 121 forms a lumen of the monitor tube 12.

In addition, in order to prevent the backflow of oxygen caused by a gap between the outer wall of the tracheal cannula body 1 and the inner wall of the trachea or bronchus during tracheal cannula, the tracheal cannula further comprises a deformable air bag 13, as shown in fig. 3, the air bag 13 is annular and is simultaneously sleeved on the outer walls of the operation tube 11 and the monitor tube 12 (the operation tube 11 and the monitor tube 12 are integrally formed), and when not in use, the air bag 13 is in a shrunken state, and when in use, the air bag 13 is in a bulged state.

The procedure for implantation of the visual airway bifurcation stent using the double lumen tracheal cannula of example 1 or example 2 is as follows:

(1) The patient is full of anesthesia, a double-cavity trachea cannula is inserted under the guidance of a laryngoscope or a bronchoscope, a breathing machine is connected, and pure oxygen maintains oxygenation and increases oxygen storage;

(2) The bronchoscope adjusts the double-cavity tracheal cannula to a preset position;

(3) Inserting an electronic bronchoscope with the outer diameter smaller than 3.0mm through the monitoring tube 12 until the position of the carina can be clearly monitored;

(4) A pusher which is temporarily separated from the respirator and is rapidly guided into the bifurcated stent from the operation tube 11;

(5) And under the whole-course direct view of the electronic bronchoscope, the branched stent released from a small part of the pusher is adjusted to the preset left bronchus and the preset right bronchus, and the branched stent part is released while the pusher is pushed until the branched stent is completely released.

(6) The electronic bronchoscope is withdrawn, and the main bracket is completely released;

(7) The monitor tube 12 is connected with a breathing machine to ensure oxygenation of a patient, the operation tube 11 is inserted into an operable bronchoscope, and the bifurcation stent is finely adjusted to be completely at a preset position.

In the description of the present utility model, it is to be noted that, unless otherwise indicated, the meaning of "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. The double-cavity trachea cannula for implanting the bifurcated stent of the airway is characterized by comprising a trachea cannula body, wherein the trachea cannula body is made of soft transparent materials and comprises a first cavity used as a pusher passage provided with the bifurcated stent and a second cavity used as a passage for inserting an electronic bronchoscope, the first cavity and the second cavity are arranged in close proximity, and the diameter of the first cavity is larger than that of the second cavity.

2. The dual lumen endotracheal tube for use in bifurcated stent implantation of claim 1, wherein said endotracheal tube body comprises an operating tube and a monitor tube, said first lumen being disposed within said operating tube and said second lumen being disposed within said monitor tube.

3. The double lumen endotracheal tube for use in bifurcated stent implantation of claim 2, wherein said operating tube and said monitor tube are integrally formed.

4. The double lumen endotracheal tube for use in bifurcated stent implantation of claim 2, wherein said operating tube and said monitor tube are bonded.

5. The double lumen endotracheal tube for use in bifurcated stent implantation according to claim 2, further comprising a deformable balloon, said balloon being annular and simultaneously sleeved over the outer walls of said tube and said tube.

6. The double-lumen tracheal cannula for airway bifurcation stent implantation of claim 5, wherein the balloon is provided with an inflation port, the inflation port is connected with an inflation tube, and the inflation tube is connected and communicated with the balloon.

7. The double lumen endotracheal tube for use in bifurcated stent implantation of claim 6, wherein the end of the inflation tube is provided with an inflation nozzle.

8. The double lumen tracheal cannula for airway bifurcation stent implantation according to any of claims 1-7, wherein the soft transparent material of the tracheal cannula body is medical polyvinylchloride.