CN218978869U - A breathing circuit connector suitable for various types of bronchoscopy - Google Patents

Abstract

The utility model provides a breathing circuit joint suitable for various types of bronchoscopy, relates to the technical field of medical equipment, and solves the problem that the breathing circuit joint cannot be applied to different types of bronchoscopes in the prior art. The breathing circuit connector of this type of bronchoscopy includes the first branch tube used to connect with the ventilator, the second branch tube used to connect with the artificial airway and the third branch tube used to connect with the bronchoscope, the third branch tube includes the connecting tube , hose plug and blocking sealing tube, the connecting pipe is connected with the first branch pipe and the second branch pipe, one end of the blocking sealing pipe is connected with the connecting pipe and the other end is provided with a connection port, the hose plug is provided with a perforation and is limited to Between the connecting tube and the blocking tube. The breathing circuit connector can meet the inspection of bronchoscopes with different outer diameters, so as to ensure that the entire breathing circuit is well sealed, avoid air leakage, and prevent the bronchoscope from slipping during fine operation.

Description

A breathing circuit connector suitable for various types of bronchoscopy

technical field

The utility model relates to the technical field of medical devices, in particular to a breathing circuit joint suitable for various types of bronchoscopy.

Background technique

Bronchoscopy is a commonly used inspection item in respiratory diseases. It is to insert a long and thin bronchoscope into the patient's lower respiratory tract through the mouth or nose, that is, enter the trachea, bronchi and more distal parts through the glottis, and directly observe the trachea and bronchi. lesion. Due to the complexity of lung diseases, the use of fiberoptic bronchoscope is not only limited to the examination of lesions, but also can perform various treatments on lesions, such as frozen lung biopsy and ablation. Painless bronchoscopy requires both ventilation and inspection operations. The patient is given general anesthesia and an artificial airway (laryngeal mask, tracheal intubation, tracheostomy catheter) is established, and a ventilator is connected for mechanical ventilation. Patients in the intensive care unit already have an artificial airway. When performing bronchoscopy on the above patients, a three-way breathing circuit connector is used, one end is connected to the ventilator, the other end is connected to the patient's artificial airway, and the other end passes through the bronchoscope.

Patent CN 207506554 U discloses an airway management tee for bronchoscopy, including a main tube, the front end of the main tube is bifurcated to form a side tube, one of the side tubes is connected with the fiberoptic bronchoscope, and the side tube has a closable Opening, the side tube is also provided with a one-way valve, the opening direction of the one-way valve is towards the main pipe, and the other side tube is connected with the anesthesia ventilation threaded tube. The inner diameter of the side tube of this tee used to connect the bronchoscope cannot be adjusted. Due to the inconsistent size of the airway lumen of the patient, it is necessary to use a variety of types of bronchoscopes with different outer diameters. When the inner diameter of the side tube is smaller than the outer diameter of the bronchoscope When the inner diameter of the connector is larger than the outer diameter of the bronchoscope, although the bronchoscope can smoothly enter the breathing circuit for clinical operations, the bronchoscope will be damaged if it is operated forcibly. An excessively large gap will make the entire breathing circuit not airtight, and the large amount of air leakage will affect the ventilation of the ventilator to the patient. In severe cases, it may cause complications such as carbon dioxide retention. Therefore, this side tube with a fixed inner diameter cannot be used to connect different sizes Bronchoscopy.

Utility model content

The purpose of this utility model is to provide a breathing circuit connector suitable for various types of bronchoscopy, to solve the problem that the breathing circuit connector in the prior art cannot be applied to different types of bronchoscopes, the utility model is suitable for various The breathing circuit connector of the model bronchoscopy can meet the requirements of various types of bronchoscopes with different outer diameters, so as to ensure that the entire breathing circuit is well sealed, avoid air leakage, and prevent the bronchoscope from slipping during fine operation.

The utility model provides a breathing circuit connector suitable for various types of bronchoscopy, including a first branch tube for connecting with a ventilator, a second branch tube for connecting with an artificial airway, and a second branch tube for connecting with a bronchoscope. The third branch pipe, the first branch pipe, the second branch pipe and the third branch pipe are connected to form a three-way structure, the third branch pipe includes a connecting pipe, a hose plug and a blocking sealing pipe, and the connecting pipe and The first branch pipe is connected to the second branch pipe, one end of the blocking sealing pipe is connected with the connecting pipe and the other end is provided with a connection port, the hose plug is provided with a perforation and is limited to the Between the connecting tube and the blocked sealing tube.

As a preferred solution of the present invention, the inner diameter of the blocking sealing pipe is adapted to the outer diameter of the connecting pipe, the inner side of the blocking sealing pipe is provided with internal threads, and the outer side of the connecting pipe is provided with external threads , the blocking sealing tube is connected to the connecting pipe through threads and the hose plug is confined in the blocking sealing tube.

As a preferred solution of the present invention, the hose plug includes a cylindrical portion and a tapered portion, the cylindrical portion is connected to the tapered portion, and the perforation passes through the cylindrical portion and the tapered portion. The tapered portion is arranged toward one side of the connecting pipe.

As a preferred solution of the present utility model, the inner side of the end of the connecting pipe provided with the external thread is provided with an inner inclined surface, and the inner inclined surface makes the connecting end of the connecting pipe and the blocking sealing pipe flaring .

As a preferred solution of the present invention, the included angle between the inner inclined surface and the axis of the connecting pipe is α, and the included angle between the inclined surface of the tapered portion and the axis is β, wherein α<β.

As a preferred solution of the present invention, the sum of the thicknesses of the sidewalls on both sides of the hose plug is greater than or equal to the inner diameter of the connecting pipe.

As a preferred solution of the present invention, the diameter of the connecting port is equal to the diameter of the through hole, and the diameter of the through hole is 7mm.

As a preferred solution of the present invention, the hose plug is a silicone plug.

As a preferred solution of the present invention, the first branch pipe is a corrugated telescopic pipe.

Compared with the prior art, the utility model has the following positive effects:

1. The respiratory circuit joints suitable for various types of bronchoscopy provided by the utility model include the first branch tube used to connect with the ventilator, the second branch tube used to connect with the artificial airway and the connection tube used to connect with the bronchoscope. The third branch pipe, the first branch pipe, the second branch pipe and the third branch pipe are connected to form a three-way structure, the third branch pipe includes a connecting pipe, a hose plug and a blocking sealing pipe, the connecting pipe is connected with the first branch pipe and the second branch pipe, One end of the blocking sealing tube is mated with the connecting pipe and the other end is provided with a connecting port, and the hose plug is provided with a perforation and is limited between the connecting pipe and the blocking sealing tube. The breathing circuit joint of the utility model is set as a three-way structure. When in use, the first branch tube is connected with the ventilator, the second branch tube is connected with the artificial airway, and the third branch tube is connected with the bronchoscope, so as to realize ventilation and bronchoscopy examination Parallel and non-interfering with each other, it not only ensures the safe ventilation of patients, but also provides a channel for bronchoscopy and treatment for doctors, and maintains oxygen inhalation during the operation of fiberoptic bronchoscopy. Among them, the hose plug has elastic shrinkage. When the blocked sealing tube is connected with the connecting pipe, the extrusion degree of the hose plug can be adjusted, and then the perforation size of the hose plug can be adjusted to adapt to different models and different outer diameters. The bronchoscope, meanwhile, the hose plug can be sealed on the outside of the bronchoscope, which increases the sealing performance and further ensures that oxygen will not leak out.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative work.

Fig. 1 is the structural schematic diagram of the breathing circuit joint that is applicable to multiple types of bronchoscopy of the present invention;

Fig. 2 is the exploded view of the third branch pipe in the utility model;

Fig. 3 is a schematic structural diagram of the third branch pipe in the present invention.

In the figure: 1. The first branch pipe; 2. The second branch pipe; 3. The third branch pipe; 31. Blocking and sealing pipe; 311. Internal thread; 312. Connection port; 32. Hose plug; 321. Cylindrical part; 322 , tapered portion; 323, perforation; 33, connecting pipe; 331, external thread; 332, internal bevel.

Detailed ways

In the description of the utility model, it should be noted that, unless otherwise specified, the meaning of "plurality" is two or more; the terms "upper", "lower", "front", "rear", " The orientation or positional relationship indicated by left”, “right”, “top”, “bottom”, “inner”, “outer”, “front end”, “rear end”, “head” and “tail” are based on the attached The orientation or positional relationship shown in the figure is only for the convenience of describing the utility model and simplification, and does 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 interpreted as a reference to the present invention. Utility model restrictions. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a It can be detachably connected or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail.

Example 1:

A breathing circuit joint suitable for various types of bronchoscopy provided by this embodiment, as shown in Figures 1-3, includes a first branch tube 1 for connecting to a ventilator, and a first branch tube 1 for connecting to an artificial airway. The second branch pipe 2 and the third branch pipe 3 for connecting with the bronchoscope, the first branch pipe 1 , the second branch pipe 2 and the third branch pipe 3 are connected to form a three-way structure. The third branch pipe 3 includes a connecting pipe 33, a hose plug 32 and a blocking sealing pipe 31. The connecting pipe 33 is connected with the first branch pipe 1 and the second branch pipe 2. One end of the blocking sealing pipe 31 is connected with the connecting pipe 33 and the other end A connecting port 312 is provided, and a perforation 323 is provided in the hose plug 32 and is limited between the connecting pipe 33 and the sealing tube 31 .

The breathing circuit connector of this embodiment is set as a three-way structure. When in use, the first branch tube is connected to the ventilator, the second branch tube 2 is connected to the artificial airway, and the third branch tube 3 is connected to the bronchoscope, thereby realizing ventilation and bronchial tube. The endoscopic examinations are performed in parallel without interfering with each other, which not only ensures the safe ventilation of the patient, but also provides the doctor with a channel for bronchoscopy examination and treatment, and maintains oxygen inhalation during the fiberoptic bronchoscopy operation. Wherein, the third branch tube 3 includes a connecting tube 33, a hose plug 32 and a blocking tube 31. When a bronchoscope is connected, the bronchoscope passes through the blocking tube 31, the tube plug 32 and the connecting tube of the third branch tube 3. 33. Make the bronchoscope enter the breathing circuit through the second branch tube 2, and enter the patient's body along the artificial airway for inspection. The hose plug 32 has elastic contractility. When the blocked sealing tube 31 is connected with the connecting tube 33, it can be adjusted. The degree of extrusion of the tube plug 32, and then adjust the size of the perforation 323 of the tube plug 32, so as to adapt to bronchoscopes of different models and different outer diameters. At the same time, the tube plug 32 can be sealed on the outside of the bronchoscope, increasing the sealing performance. It further ensures that oxygen will not leak out.

The breathing circuit joint of this embodiment has a simple structure and strong practicability. The flexible hose plug 32 is used to seal and fix the bronchoscope, which can meet the inspection of bronchoscopes of various models and different outer diameters, and ensure that the entire breathing circuit is well sealed. , avoid air leakage, prevent the bronchoscope from slipping during fine operation, and at the same time prevent the liquid in the patient's lungs from recoiling from the common breathing circuit inlet, causing environmental pollution, and ensuring the convenience and safety of clinical operations.

Preferably, the inner diameter of the blocking sealing tube 31 is adapted to the outer diameter of the connecting pipe 33, the inner side of the blocking sealing tube 31 is provided with an internal thread 311, and the outer side of the connecting pipe 33 is provided with an external thread 331, and the blocking sealing tube 31 is threaded and The connecting tube 33 connects and constrains the hose plug 32 within the blocking seal 31 .

When the breathing circuit joint of this embodiment is in use, when the blocking sealing tube 31 and the connecting tube 33 are screwed tightly, the hose plug 32 is squeezed and its perforation 323 is narrowed until it is closed, and the blocking sealing tube 31 is relatively connected to the connecting tube. When the tube 33 is unscrewed, the perforation 323 on the hose plug 32 is gradually opened. According to the bronchoscope with different outer diameters, adjust the tightening degree of the blocking sealing tube 31 relative to the connecting tube 33, so that the perforation 323 on the hose plug 32 is opened. The size fits the outer diameter of the bronchoscope.

Preferably, the hose plug 32 includes a cylindrical portion 321 and a tapered portion 322, the cylindrical portion 321 is connected to the tapered portion 322, the perforation 323 is provided through the cylindrical portion 321 and the tapered portion 322, and the tapered portion 322 faces the connection One side of the tube 33 is provided.

The hose plug 32 in this embodiment provides a tapered portion 322 so that the tapered portion 322 is more likely to shrink and deform when the hose plug 32 is squeezed, thereby adjusting the opening size of the perforation 323 .

Preferably, as shown in FIG. 2 and FIG. 3 , an inner slope 332 is provided on the inner side of the end of the connecting pipe 33 provided with an external thread 331 , and the inner slope 332 makes the connecting end of the connecting pipe 33 and the blocking sealing pipe 31 flaring.

The connecting pipe 33 in this embodiment is provided with an inner inclined surface 332, so that when the connecting pipe 33 is connected to the blocking sealing pipe 31, the tapered portion 322 of the hose plug 32 is embedded in the flaring end formed by the inner inclined surface 332, and the tapered portion 322 is more It is easy to be contracted and deformed by the extrusion of the flaring end, thereby changing the opening degree of the perforation 323 .

Preferably, as shown in FIG. 3 , the angle between the inner slope 332 and the axis of the connecting pipe 33 is α, and the angle between the slope of the tapered portion 322 and the axis is β, wherein α<β.

In this embodiment, when the blocking sealing tube 31 is connected to the connecting pipe 33, the inner hose plug 32 is squeezed into the flaring end of the connecting pipe 33, thereby narrowing the perforation 323 in the middle of the hose plug 32 , or even directly occluded.

Preferably, the sum of the thicknesses of the sidewalls on both sides of the hose plug 32 is greater than or equal to the inner diameter of the connecting pipe 33 to ensure that the middle perforation 323 can be closed when the hose plug 32 is squeezed.

Preferably, the diameter of the connecting port 312 is equal to the diameter of the through hole 323 . Preferably, the diameter of the perforation 323 is 7mm.

Since the maximum outer diameter of the bronchoscope on the market is 6mm, the diameter of the connection port 312 and the diameter of the perforation 323 are both set to 7mm in this embodiment, so there is a 1mm free space to facilitate the passage of the bronchoscope and make the bronchoscope easy to install . And the perforation 323 can be blocked under extrusion, so that the breathing circuit connector can be connected to any bronchoscope with an outer diameter of less than 7mm.

Preferably, the hose plug 32 is a silicone plug, which has good elastic deformation capability, is non-toxic and tasteless, and has stable chemical properties.

Preferably, the first branch pipe 1 is a corrugated telescopic pipe, so as to facilitate the expansion and contraction of the length, and facilitate the connection with the ventilator.

The above is only the preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto, any skilled person who is familiar with the technical field can also do Several modifications and improvements should be covered within the protection scope of the present utility model.

Claims (9)

1. The utility model provides a breathing circuit connects suitable for multiple model bronchoscopy, its characterized in that, including first branch pipe (1) that are used for being connected with the breathing machine for second branch pipe (2) and be used for being connected with the bronchoscope that the artificial airway is connected, first branch pipe (1) second branch pipe (2) with third branch pipe (3) are connected and are formed three way structure, third branch pipe (3) include connecting pipe (33), hose stopper (32) and block seal tube (31), connecting pipe (33) with first branch pipe (1) with second branch pipe (2) are connected, block seal tube (31) one end with connecting pipe (33) cooperation is connected and the other end is provided with connector (312), be provided with perforation (323) in hose stopper (32) and limited to be located between connecting pipe (33) and block seal tube (31).

2. Breathing circuit joint suitable for multiple model bronchoscopy according to claim 1, characterized in that the inside diameter of the occlusion tube (31) is adapted to the outside diameter of the connection tube (33), the inside of the occlusion tube (31) is provided with an internal thread (311), the outside of the connection tube (33) is provided with an external thread (331), the occlusion tube (31) is screwed with the connection tube (33) and the hose plug (32) is confined in the occlusion tube (31).

3. Breathing circuit joint suitable for multiple model bronchoscopy according to claim 2, characterized in that the hose plug (32) comprises a cylindrical part (321) and a conical part (322), the cylindrical part (321) being connected with the conical part (322), the perforation (323) being arranged through the cylindrical part (321) and the conical part (322), the conical part (322) being arranged towards one side of the connecting tube (33).

4. A breathing circuit joint suitable for multiple bronchoscopy according to claim 3, characterized in that the inner side of the end of the connecting tube (33) provided with the external thread (331) is provided with an inner inclined surface (332), the inner inclined surface (332) makes the connecting end of the connecting tube (33) and the blocking tube (31) be in a flaring shape.

5. A breathing circuit connector adapted for use in multiple bronchoscopy according to claim 4, wherein the angle between said inner bevel (332) and the axis of said connecting tube (33) is α, and the angle between the bevel of said tapered portion (322) and its axis is β, wherein α < β.

6. A breathing circuit connector adapted for use in multiple model bronchoscopy according to claim 5, wherein the sum of the thicknesses of the side walls of the hose plug (32) is greater than or equal to the inner diameter of the connecting tube (33).

7. A breathing circuit connector suitable for use in multiple model bronchoscopy according to claim 1, wherein the diameter of the connection port (312) is equal to the diameter of the perforation (323), the diameter of the perforation (323) being 7mm.

8. A breathing circuit connector suitable for use in multiple model bronchoscopy according to claim 1, wherein the hose plug (32) is a silicone plug.

9. Breathing circuit joint suitable for multiple model bronchoscopy according to claim 1, characterized in that said first branch (1) is a bellows.

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