CN218978869U

CN218978869U - Breathing circuit joint suitable for bronchoscopy of multiple model

Info

Publication number: CN218978869U
Application number: CN202222633876.2U
Authority: CN
Inventors: 孙鹏; 左玲
Original assignee: West China Hospital of Sichuan University
Current assignee: West China Hospital of Sichuan University
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2023-05-09
Anticipated expiration: 2032-10-08

Abstract

The utility model provides a breathing circuit joint suitable for various types of bronchoscopies, which relates to the technical field of medical equipment and aims to solve the problem that the breathing circuit joint in the prior art cannot be suitable for bronchoscopies of different types. The breathing circuit connector can meet the requirements of checking bronchoscopes with different outer diameters, ensure good tightness of the whole breathing circuit, avoid air leakage and prevent the bronchoscopes from sliding down during fine operation.

Description

Breathing circuit joint suitable for bronchoscopy of multiple model

Technical Field

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

Background

Bronchoscopy is a commonly used examination item in respiratory diseases, and is to put an elongated bronchoscope into the lower respiratory tract of a patient through the mouth or nose, namely, enter the trachea and the bronchus through the glottis and further end, and directly observe lesions of the trachea and the bronchus. Because of the complexity of pulmonary diseases, the use of bronchofiberscopes has not been limited to examining lesions, but also to performing various treatments on lesions, such as frozen lung biopsies and ablations. Painless bronchoscopy requires both ventilation and examination procedures, general anesthesia of the patient and establishment of an artificial airway (laryngeal mask, endotracheal tube, tracheostomy tube), and connection to a ventilator for mechanical ventilation. Patients in intensive care units already have artificial airways themselves. When the patient is subjected to bronchoscopy, a three-way breathing loop connector is used, one end of the breathing loop connector is connected with a breathing machine, the other end of the breathing loop connector is connected with an artificial airway of the patient, and the other end of the breathing loop connector is connected with the patient through the bronchoscope.

Patent CN 207506554U discloses an airway management tee for bronchoscopy, which comprises a main pipe, wherein the front end of the main pipe is bifurcated to form side pipes, one side pipe is connected with a fiber bronchoscope and is provided with a closable opening, a unidirectional valve is further arranged in the side pipe, the opening direction of the unidirectional valve faces the main pipe, and the other side pipe is connected with an anesthesia ventilation threaded pipe. The inner diameter of the side tube used for connecting the bronchoscope is not adjustable, because the sizes of the airway lumens of patients are inconsistent, the bronchoscopes with different types and different outer diameters are needed, when the inner diameter of the side tube is smaller than the outer diameter of the bronchoscope, the bronchoscope cannot be subjected to bronchoscopy through a breathing loop, and if the bronchoscope is forcedly operated, the bronchoscope can be damaged; on the contrary, if the internal diameter of the connector is larger than the external diameter of the bronchoscope, although the bronchoscope can smoothly enter the breathing circuit to carry out clinical operation, the whole breathing circuit is not closed due to the overlarge gap, ventilation of a patient is influenced by the breathing machine due to larger ventilation, complications such as carbon dioxide retention can be caused when the ventilation is serious, and therefore, the side tube with fixed internal diameter cannot be suitable for connecting bronchoscopes with different models and sizes.

Disclosure of Invention

The utility model aims to provide a breathing circuit joint suitable for various types of bronchoscopies, which solves the problem that the breathing circuit joint in the prior art cannot be suitable for different types of bronchoscopes.

The utility model provides a breathing circuit joint suitable for bronchoscopy of various models, which comprises a first branch pipe used for being connected with a breathing machine, a second branch pipe used for being connected with an artificial airway and a third branch pipe used for being connected with a bronchoscope, wherein 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 comprises a connecting pipe, a hose plug and a blocking seal pipe, the connecting pipe is connected with the first branch pipe and the second branch pipe, one end of the blocking seal pipe is connected with the connecting pipe in a matched manner, and a connecting port is arranged at the other end of the blocking seal pipe, and a perforation is arranged in the hose plug and is limited between the connecting pipe and the blocking seal pipe.

As a preferred scheme of the utility model, the inner diameter of the blocking seal pipe is matched with the outer diameter of the connecting pipe, the inner side of the blocking seal pipe is provided with an inner thread, the outer side of the connecting pipe is provided with an outer thread, and the blocking seal pipe is connected with the connecting pipe through threads and limits the hose plug in the blocking seal pipe.

As a preferred aspect of the present utility model, the hose plug includes a cylindrical portion connected to the tapered portion, the penetration hole is provided through the cylindrical portion and the tapered portion, and the tapered portion is provided toward one side of the connection pipe.

As a preferable mode of the utility model, an inner inclined surface is arranged on the inner side of one end of the connecting pipe provided with the external thread, and the connecting end of the connecting pipe and the blocking seal pipe is in a flaring shape by the inner inclined surface.

As a preferred aspect of the present utility model, an angle between the inner inclined surface and the axis of the connecting pipe is α, and an angle between the inclined surface of the tapered portion and the axis thereof is β, where α < β.

As a preferred embodiment of the present utility model, the sum of thicknesses of both side walls of the hose plug is greater than or equal to the inner diameter of the connection pipe.

As a preferable mode of the present utility model, the diameter of the connection port is equal to the diameter of the perforation, and the diameter of the perforation is 7mm.

As a preferable mode of the utility model, the hose plug is a silica gel plug.

As a preferred embodiment of the present utility model, the first branch pipe is a bellows.

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

1. the utility model provides a breathing circuit joint suitable for bronchoscopy of various models, which comprises a first branch pipe used for being connected with a breathing machine, a second branch pipe used for being connected with an artificial airway and a third branch pipe used for being connected with a bronchoscope, wherein 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 comprises a connecting pipe, a hose plug and a blocking seal pipe, the connecting pipe is connected with the first branch pipe and the second branch pipe, one end of the blocking seal pipe is connected with the connecting pipe in a matched way, and the other end of the blocking seal pipe is provided with a connecting port, and a perforation is arranged in the hose plug and is limited between the connecting pipe and the blocking seal pipe. The breathing circuit joint is of a three-way structure, when the breathing circuit joint is used, the first branch pipe is connected with a breathing machine, the second branch pipe is connected with an artificial airway, and the third branch pipe is connected with a bronchoscope, so that the parallel and noninterference of ventilation and bronchoscopy is realized, the safe ventilation of a patient is ensured, a channel for bronchoscopy and treatment is provided for a doctor, and the inhalation of oxygen is maintained in the operation process of fiber bronchoscopy. Wherein, the hose stopper has elasticity contractility, when blocking the tube-sealing and connecting pipe connection, can adjust the extrusion degree to the hose stopper, and then adjust the perforation size of hose stopper to be suitable for the bronchoscope of different models, different external diameters, the hose stopper can seal in the outside of bronchoscope simultaneously, has increased sealing performance, further guaranteed that oxygen can not leak.

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 illustration of the construction of a respiratory circuit connector of the present utility model suitable for use in various models of bronchoscopy;

FIG. 2 is an exploded view of a third manifold of the present utility model;

fig. 3 is a schematic structural view of a third branch pipe according to the present utility model.

In the figure: 1. a first branch pipe; 2. a second branch pipe; 3. a third branch pipe; 31. blocking and sealing the pipe; 311. an internal thread; 312. a connection port; 32. a hose plug; 321. a columnar portion; 322. a tapered portion; 323. perforating; 33. a connecting pipe; 331. an external thread; 332. an inner inclined plane.

Detailed Description

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," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "front," "rear," "head," "tail," and the like are merely for convenience in describing and simplifying the utility model based on the orientation or positional relationship shown in the drawings 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 following describes the embodiments of the present utility model in further detail with reference to the drawings.

Example 1:

the respiratory circuit connector suitable for bronchoscopy of various models provided by the embodiment comprises a first branch pipe 1 used for being connected with a breathing machine, a second branch pipe 2 used for being connected with an artificial airway and a third branch pipe 3 used for being connected with a bronchoscope, wherein the first branch pipe 1, the second branch pipe 2 and the third branch pipe 3 are connected to form a three-way structure as shown in fig. 1-3. The third branch pipe 3 comprises a connecting pipe 33, a hose plug 32 and a blocking seal pipe 31, wherein the connecting pipe 33 is connected with the first branch pipe 1 and the second branch pipe 2, one end of the blocking seal pipe 31 is connected with the connecting pipe 33 in a matched manner, the other end of the blocking seal pipe is provided with a connecting port 312, and a perforation 323 is arranged in the hose plug 32 and limited between the connecting pipe 33 and the blocking seal pipe 31.

The breathing circuit joint of this embodiment sets up to three-way structure, when using, is connected first branch pipe and breathing machine, and second branch pipe 2 is connected with artifical air flue, and third branch pipe 3 is connected with the bronchoscopy to realize ventilating and bronchoscopy and parallel and mutually noninterfere, both guaranteed patient's safe ventilation, provided the passageway of bronchoscopy and treatment again for the doctor, maintain the inhalation of oxygen in the operation process of fibre bronchoscopy. Wherein, third branch pipe 3 includes connecting pipe 33, hose stopper 32 and blocks the tube-sealing 31, when connecting the bronchoscope, the bronchoscope passes the blocking tube-sealing 31 of third branch pipe 3 with this, hose stopper 32 and connecting pipe 33, make the bronchoscope get into the breathing circuit through second branch pipe 2, get into the patient in along artifical air flue, inspect, hose stopper 32 has elasticity contractility, when blocking tube-sealing 31 and connecting pipe 33 to be connected, can adjust the extrusion degree to hose stopper 32, and then adjust the perforation 323 size of hose stopper 32, in order to be adapted to the bronchoscope of different models, different external diameters, hose stopper 32 can seal in the outside of bronchoscope simultaneously, sealing performance has been increased, further oxygen can not leak guaranteed.

The breathing circuit joint of this embodiment, simple structure, the practicality is strong, utilizes flexible hose stopper 32 to seal fixed to the bronchoscope, can satisfy various models, bronchoscope of different external diameters and inspect, guarantees that whole breathing circuit leakproofness is good, avoids gas leakage, prevents that the bronchoscope from landing when meticulous operation, prevents simultaneously that patient's lung liquid recoil from ordinary breathing circuit access mouth blowout, causes environmental pollution, guarantees the convenience and the safety of clinical operation.

Preferably, the inner diameter of the blocking seal tube 31 is matched with the outer diameter of the connecting tube 33, the inner side of the blocking seal tube 31 is provided with an inner thread 311, the outer side of the connecting tube 33 is provided with an outer thread 331, the blocking seal tube 31 is connected with the connecting tube 33 through threads and the hose plug 32 is limited in the blocking seal tube 31.

When the breathing circuit connector of this embodiment is used, when the blocking seal tube 31 and the connecting tube 33 are screwed together through threads, the hose plug 32 is compressed to narrow the perforation 323 until the perforation 323 is closed, when the blocking seal tube 31 is unscrewed relative to the connecting tube 33, the perforation 323 on the hose plug 32 is gradually opened, and according to bronchoscopes with different outer diameters, the screwing degree of the blocking seal tube 31 relative to the connecting tube 33 is adjusted, so that the opening size of the perforation 323 on the hose plug 32 is matched with the outer diameter of the bronchoscopes.

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 penetration 323 is provided through the cylindrical portion 321 and the tapered portion 322, and the tapered portion 322 is provided toward the connection pipe 33 side.

The hose plug 32 in this embodiment is provided with the tapered portion 322, so that the tapered portion 322 is more easily deformed by shrinkage when the hose plug 32 is pressed, and the opening size of the through hole 323 is adjusted.

Preferably, as shown in fig. 2 and 3, an inner inclined surface 332 is provided inside the end of the connection tube 33 provided with the external thread 331, and the inner inclined surface 332 makes the connection end of the connection tube 33 and the stopper tube 31 in a flared shape.

In the connecting tube 33 of the present embodiment, by providing the inner inclined surface 332, when the connecting tube 33 is connected to the stopper tube 31, the tapered portion 322 of the hose plug 32 is embedded into the flared end formed by the inner inclined surface 332, and the tapered portion 322 is more easily deformed by the extrusion action of the flared end, thereby changing the opening degree of the perforation 323.

Preferably, as shown in fig. 3, the angle between the inner inclined surface 332 and the axis of the connecting tube 33 is α, and the angle between the inclined surface of the tapered portion 322 and the axis thereof is β, where α < β.

When the blocking seal 31 is connected to the connecting tube 33 in this embodiment, the inner hose plug 32 is pressed into the flared end of the connecting tube 33 by the pressing action, so that the perforation 323 in the middle of the hose plug 32 is narrowed, even directly blocked.

Preferably, 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, so as to ensure that the central perforation 323 achieves a sealing effect when the hose plug 32 is pressed.

Preferably, the diameter of the connection port 312 is equal to the diameter of the perforation 323. Preferably, the perforations 323 have a diameter of 7mm.

Because the maximum outer diameter of the bronchoscope on the market is 6mm, in this embodiment, the diameter of the connecting port 312 and the diameter of the perforation 323 are both set to 7mm, so that 1mm of empty space is reserved, the bronchoscope can pass through conveniently, and the bronchoscope can be installed conveniently. And the perforations 323 can be occluded under compression to allow the breathing circuit connector to connect any bronchoscope having an outer diameter less than 7mm.

Preferably, the hose plug 32 is a silicone plug, has good elastic deformability, is nontoxic and odorless, and has stable chemical properties.

Preferably, the first branch pipe 1 is a corrugated telescopic pipe, so that the length of the first branch pipe is convenient to stretch and connect with a breathing machine.

The above description is only of the preferred embodiments of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art can make several variations and modifications without departing from the inventive concept, and it is intended to cover the scope of the present utility model.

Claims

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.