CN220530066U

CN220530066U - Bronchus obstruction device

Info

Publication number: CN220530066U
Application number: CN202321685595.XU
Authority: CN
Inventors: 唐国盛; 魏宏星
Original assignee: Shenzhen Meimeimeichuangyi Medical Technology Co ltd
Current assignee: Shenzhen Meimeimeichuangyi Medical Technology Co ltd
Priority date: 2023-06-29
Filing date: 2023-06-29
Publication date: 2024-02-27
Anticipated expiration: 2033-06-29

Abstract

The application relates to the technical field of medical instruments, in particular to a bronchus blanking plug, which comprises a main catheter, wherein the main catheter comprises an exposed section outside the body; the branch catheter is arranged at the far end of the main catheter and is used for extending into bronchus; a respiratory tract extending from a distal end of the main catheter to the exposed section of the main catheter; a bronchial lumen extending from the distal end of the branch catheter to the exposed section of the main catheter, wherein an opening and closing structure is arranged at the opening of the bronchial lumen at the exposed section; the first air bag is sleeved on the main catheter and used for expanding and blocking the glottis; the second air sac is sleeved on the branch catheter and used for expanding and plugging bronchi; and the inflation assembly is used for inflating the first air bag and the second air bag. The bronchus blanking plug provided by the application is more convenient in the clinical use process, and the risk of matching use of multiple instruments can be reduced.

Description

Bronchus obstruction device

Technical Field

The application relates to the technical field of medical equipment, in particular to a bronchus blanking plug.

Background

Single lung ventilation is a technique commonly used in thoracic surgical anesthesia, and is mainly aimed at protecting healthy side lungs from contamination of secretions or blood from the affected side lungs, such as major bleeding, septicemia, lung abscess, and the like. Among them, a technique of achieving single lung ventilation is also called a lung isolation technique.

At present, the bronchus obstruction device is widely applied to lung isolation operation; in the actual process, the bronchus plug is inserted into the trachea cannula and the target lung segment under the guidance of the fiber bronchoscope, and after reaching a preset position, the balloon at the tail end of the plug tube is inflated by inflation, so that the purpose of plugging and isolation is achieved. In the related art, the bronchial plug is usually required to be matched with an endotracheal tube for use, and the multi-equipment matching application is not convenient enough in the clinical use process.

Disclosure of Invention

For the convenience of use of the bronchial occluder in pulmonary isolation techniques, the present application provides a bronchial occluder.

The application provides a bronchus blanking plug adopts following technical scheme:

a bronchial blanking plug, comprising:

a main catheter including an exposed section outside the body;

the branch catheter is arranged at the far end of the main catheter and is used for extending into bronchus;

a respiratory tract extending from a distal end of the main catheter to the exposed section of the main catheter;

a bronchial lumen extending from the distal end of the branch catheter to the exposed section of the main catheter, wherein an opening and closing structure is arranged at the opening of the bronchial lumen at the exposed section;

the first air bag is sleeved on the main catheter and used for expanding and blocking the glottis;

the second air sac is sleeved on the branch catheter and used for expanding and plugging bronchi;

and the inflation assembly is used for inflating the first air bag and the second air bag.

Through adopting above-mentioned technical scheme, respiratory tract can be used to ventilate, and first gasbag can be used to shutoff glottis, and the second gasbag can be used to shutoff bronchus, thereby make the bronchus blanking plug can realize ventilation function, still can reach the effect of shutoff bronchus and glottis, thereby when realizing the lung isolation function, can adopt the bronchus blanking plug in this scheme alone to realize corresponding lung isolation function, and need not to use with the trachea cannula is supporting, on the one hand can promote the convenience of operation, on the other hand, also can reduce the risk of the supporting use of many apparatuses, and also be convenient for reduce medical staff too much operation and cause the possibility of damage to the patient.

Further, the inflation assembly comprises an inflation cavity and an inflation tube, the inflation cavity extends from the branch guide tube to the exposed section of the main guide tube, the first air bag and the second air bag are both communicated with the inflation cavity, the inflation tube is communicated with the inflation cavity, and the inflation tube is used for being connected with an inflation device.

Through adopting above-mentioned technical scheme, the first gasbag adopts same air inflation chamber with the inflation of second gasbag, and the operation of inflating is unified in being convenient for, simultaneously, compares in adopting two different chambeies to carry out the inflated setting respectively, adopts single air inflation chamber to say also can reduce the preparation technology complexity of body, and if need realize same chambeies aperture, two different chambeies still need occupy more body spaces.

Further, the inflation assembly further comprises an indication bag and a one-way valve, wherein the indication bag is connected to one end of the inflation tube, which is far away from the inflation channel, and one end of the one-way valve is connected to the indication bag, and the other end of the one-way valve is used for being connected with the inflation device.

By adopting the technical scheme, the one-way valve is convenient to close the channel after inflation to maintain the expansion state of the first air bag and the second air bag, and the indication bag is also convenient to observe the approximate air pressure state after inflation.

Further, an inflation connecting column is arranged at the proximal end of the main catheter, the inflation connecting column is communicated with the inflation cavity, and the inflation tube is connected with the inflation connecting column.

Further, the inflation assembly comprises a first inflation cavity, a second inflation cavity, a first air pipe and a second air pipe, wherein the first inflation cavity is communicated with the first air bag, one end of the first air pipe is connected with the first inflation cavity, and the other end of the first air pipe is used for being connected with an inflation device; the second inflation cavity is communicated with the second air bag, one end of the second air pipe is connected with the second inflation cavity, and the other end of the second air pipe is connected with the inflation device.

By adopting the technical scheme, the first air bag and the second air bag are inflated by adopting the independent inflation chambers respectively, so that different inflation amounts between the first air bag and the second air bag are controlled conveniently to achieve different inflation degrees.

Further, the branch catheter comprises a first pipe section and a second pipe section which are arranged along the direction far away from the main catheter, an included angle is formed at the joint of the first pipe section and the second pipe section, and the included angle is used for adapting to the corner of the communication area between the trachea and the bronchus; the second air bag is sleeved on the second pipe section.

Further, the first balloon is used for sealing an upper end opening of the glottis.

Further, the first balloon includes a medial portion and a peripheral portion that is sloped in a direction toward the distal end of the main conduit.

Further, the bronchus blanking plug further comprises a miniature camera, and an installation cavity for embedding the miniature camera is arranged at the far end of the main guide pipe.

Further, the bronchus blanking plug further comprises an extension pipeline arranged on the exposed section of the bronchus duct, one end of the extension pipeline is communicated with the bronchus cavity pipeline, and a cover body is arranged at the other end of the extension pipeline.

In summary, the present application includes at least one of the following beneficial technical effects:

the clinical use process is more convenient and faster, and the risk of matching multiple instruments for use can be reduced;

the first air bag and the second air bag are inflated by adopting the same inflation channel, so that the unified inflation operation is convenient.

Drawings

FIG. 1 is a schematic view of a bronchial occluder in an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of a main conduit in an embodiment of the present application;

FIG. 3 is a schematic view in semi-section of portion A of FIG. 1;

FIG. 4 is a partial cross-sectional view of a main catheter in another embodiment of the present application;

FIG. 5 is a schematic view of a main conduit, respiratory connector, inflatable connector column, and extension tubing in another embodiment of the present application;

fig. 6 is a schematic view of the first airbag at the view angle B in fig. 1.

Reference numerals illustrate: 1. a main conduit; 11. a connecting member; 12. a respiratory joint; 13. an inflatable connecting column; 14. extending the pipeline; 141. a cover body; 15. cutting the corners; 2. a branch conduit; 21. a first pipe section; 22. a second pipe section; 3. respiratory tract; 4. a bronchial lumen; 5. a first air bag; 51. an intermediate portion; 52. a peripheral side portion; 53. mounting through holes; 6. a second air bag; 7. an air-filling channel; 71. an inflation tube; 72. an indicator bladder; 73. a one-way valve.

Description of the embodiments

The present application is described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses a bronchus blanking plug.

Referring to fig. 1 and 2, the present embodiment discloses a bronchial plug comprising a main catheter 1, a branch catheter 2, a respiratory tract 3, a bronchial tract 4, a first balloon 5, a second balloon 6 and an inflation assembly; in this embodiment, the main catheter 1 is configured as an elongated flexible tube, so as to facilitate the preparation and adapt to the structure of the extended region in the patient, and in particular injection molding or extrusion molding can be adopted. It will be appreciated that in clinical use, the main catheter 1 will be inserted into the patient and in this state, the main catheter 1 is partially in the body, which will be referred to for convenience as the inlet section of the main catheter 1; while the main catheter 1 is also partly outside the body, which will be referred to as the exposed section of the main catheter 1 for convenience of description.

The branch catheter 2 is arranged at the distal end of the main catheter 1, while the branch catheter 2 has a smaller size than the main catheter 1 and is intended to extend into the bronchi of the patient; it will be appreciated that the above-mentioned branch conduit 2 is intended to extend into the bronchi of a patient, and that it is actually shown that the branch conduit 2 may extend at least partially into the bronchi. Meanwhile, the branch conduit 2 can be integrally injection molded/extrusion molded with the main conduit 1, or can be fixed with the main conduit 1 in a plugging and gluing mode after being separately injection molded/extrusion molded.

Meanwhile, it should be noted that the distal end of the main catheter 1 is named with the main catheter 1 as the main body with respect to the operator, that is, the end of the main catheter 1 away from the operator is called the distal end, that is, the end of the main catheter 1 that extends most into the patient is called the distal end; correspondingly, the end of the main catheter 1 close to the operator is called the proximal end. Meanwhile, the descriptions of the far end and/or the near end appearing again in the following are named with respect to the position of the body with respect to the operator.

Furthermore, particularly in actual clinical use, the distal end of the main catheter 1 is placed in the patient's trachea near the tracheal bifurcation and the distal end of the branch catheter 2 is placed in the bronchi. It is understood that the tracheal bifurcation refers to the area where the human trachea meets the bronchi.

The respiratory tract 3 is used for providing a passage for the patient to breathe, in particular, the respiratory tract 3 extends from the distal end of the main catheter 1 to the exposed section of the main catheter 1, and the respiratory tract 3 is used for communicating the patient's trachea with the outside when the distal end of the main catheter 1 is in the patient's trachea. Also, it will be appreciated that in embodiments where it is desired to connect a respiratory apparatus, the exposed section of the main conduit 1 may be correspondingly configured with a respiratory connector 12 in communication with the respiratory tract 3 for connection of the respiratory apparatus.

The bronchial lumen 4 extends from the distal end of the branch catheter 2 to the exposed section of the main catheter 1, the bronchial lumen 4 being used to connect the patient's bronchi to the outside when the distal end of the branch catheter 2 is in the patient's bronchi. Meanwhile, the bronchial lumen 4 is used for being connected to an exposed section of the bronchus of an external opening, and correspondingly, an opening and closing structure is further arranged at the opening of the bronchial lumen 4 for communicating with the external opening, so that the bronchial lumen 4 is opened or closed based on requirements.

The first air bag 5 is sleeved on the main catheter 1 and used for expanding and blocking glottis, and the second air bag 6 is sleeved on the branch catheter 2 and used for expanding and blocking bronchi; it will be appreciated that to locate the distal end of the main conduit 1 at a position where the patient's trachea is near the bifurcation of the trachea, the inlet section of the main conduit 1 must be threaded through the patient's mouth, glottis, trachea and the like. Correspondingly, the first air bag 5 is fixedly sleeved at the position of the main guide pipe 1, where the position of the inlet section is matched with that of the glottis, so that the glottis can be blocked after the first air bag 5 is inflated. Meanwhile, it is pointed out that at least part of the branch catheter 2 can extend into the bronchus of the patient, and correspondingly, the branch catheter 2 fixedly sleeved with the second air bag 6 can extend into the bronchus of the patient, so that the second air bag 6 can seal the bronchus after being inflated.

The inflation assembly is used for inflating the first air bag 5 and the second air bag 6, and after the main pipeline and the branch catheter 2 in the bronchus occluder are configured to the correct positions of a patient, an operator can inflate the first air bag 5 and the second air bag 6 through the inflation assembly so that the first air bag 5 and the second air bag 6 are inflated, and therefore the purpose of occluding the glottis and the bronchus of the patient is achieved.

With the adoption of the arrangement, the respiratory cavity 3 is utilized to ventilate a patient, the first air bag 5 is used for blocking the glottis, and the second air bag 6 is used for blocking the bronchi, so that the bronchus plug can realize the respiratory ventilation function and can also realize the effect of blocking the bronchi and the glottis; when the lung isolation function is realized, the corresponding lung isolation function can be realized without matching with an endotracheal tube.

Referring to fig. 1-3, further, in some embodiments, the inflation assembly includes an inflation lumen 7 and an inflation tube 71; wherein, the inflation cavity way 7 extends from the branch conduit 2 to the exposed section of the main conduit 1, the first air bag 5 and the second air bag 6 are both communicated with the inflation cavity way 7, the inflation tube 71 is communicated with the inflation cavity way 7, and the inflation tube 71 is used for connecting an inflation device. Therefore, the first air bag 5 and the second air bag 6 are inflated by adopting the same inflation cavity 7, so that unified inflation operation is facilitated.

In yet other embodiments, the inflation assembly includes a first inflation lumen, a second inflation lumen, a first gas tube, and a second gas tube; the first inflation cavity is communicated with the first air bag 5, one end of the first air pipe is connected with the first inflation cavity, and the other end of the first air pipe is used for being connected with the inflation device; the second inflation cavity is communicated with the second air bag 6, one end of the second air pipe is connected with the second inflation cavity, and the other end of the second air pipe is used for being connected with an inflation device. Through the arrangement, the first air bag 5 and the second air bag 6 are inflated by adopting independent inflation chambers respectively, so that different inflation amounts between the first air bag 5 and the second air bag 6 are controlled conveniently to achieve different inflation degrees.

Referring further to FIG. 1, in some specific embodiments, the inflation assembly further includes an indicator bladder 72 and a one-way valve 73; wherein, the indication bag 72 is connected with one end of the inflation tube 71 far away from the inflation channel 7, one end of the one-way valve 73 is connected with the indication bag 72, and the other end is used for connecting an inflation device. The provision of the check valve 73 facilitates the maintenance of the inflated state of the first and second air bags 5, 6 by closing the passage after inflation, and the use of the indicator bag 72 also facilitates the observation of the substantially air pressure state after inflation.

Referring to fig. 3 and 4, it may be understood that the inflation lumen 7, the respiratory lumen 3 and the bronchial lumen 4 mentioned above may be integrally formed during injection molding/extrusion molding of the main catheter 1 and the branch catheter 2, or may be formed by reserving a main channel in the main catheter 1 and the branch catheter 2, and then fixedly arranging a pipeline in the main channel to realize the inflation lumen 7, the respiratory lumen 3 and the bronchial lumen 4.

Referring to fig. 1 and 5, further, in some embodiments, the proximal end of the main catheter 1 is provided with an inflation connector post 13, the inflation connector post 13 communicates with the inflation lumen 7, and the inflation tube 71 is connected to the inflation connector post 13. It can be understood that the inflatable connecting column 13 is a column with a hollow channel inside, and the inflatable tube 71 is connected with the inflatable connecting column 13, which can be that the inflatable tube 71 is sleeved at the end of the inflatable connecting column 13, or that the inflatable tube 71 is spliced at the end of the inflatable connecting column 13.

Further, the bronchial plug further comprises an extension pipe 14 arranged on the exposed section of the branch catheter 2, one end of the extension pipe 14 is communicated with the bronchial lumen 4, and the other end of the extension pipe is provided with a cover 141. In the present embodiment, the arrangement of the extension pipe 14 and the cover 141 corresponds to the opening and closing structure of the bronchial lumen 4 and the external opening; specifically, the extension pipe 14 is closed and opened by the cover 141, so that the bronchial lumen 4 can be opened and closed.

Referring to fig. 5, in some embodiments, the main conduit 1 is formed directly on or fixedly connected with the breathing joint 12, the inflation connecting post 13 and the extension tube 14. Referring to fig. 1, in the present embodiment, a proximal end of a main catheter 1 is provided with a connection member 11, and the connection member 11 is sleeved on the proximal end of the main catheter 1 in a sleeve shape; the end of the connecting part 11 is shaped to form a breathing joint 12, and the connecting part 11 is built with a channel which communicates with the breathing channel 3 in the main conduit 1, which channel extends to the breathing joint 12. At the same time, the side wall of the connecting part 11 is molded to form the inflatable connecting column 13, and the connecting part 11 is internally provided with a cavity communicated with the inflatable cavity 7 in the main pipe 1, and the cavity extends to the inflatable connecting column 13. In addition, the side wall of the connection member 11 is formed to form an extension pipe 14, and the connection member 11 has a lumen in communication with the bronchial lumen 4 in the main conduit 1, the lumen extending to the extension pipe 14.

It will be appreciated that the connection member 11 may be directly formed at the proximal end of the main catheter 1 by injection molding, or may be separately formed and then fixed at the proximal end of the main catheter 1 by socket bonding.

Further, with reference to fig. 1, in some embodiments, the branch conduit 2 comprises a first tube section 21 and a second tube section 22 arranged in a direction away from the main conduit 1, wherein the junction of the first tube section 21 and the second tube section 22 forms an angle for adapting the corner of the tracheal and bronchial communication region, so that the second tube section 22 of the branch conduit 2 is easier to be inserted into the bronchus of the patient; correspondingly, the second balloon 6 is fitted over a second tube section 22 which can be inserted into the bronchi of the patient.

Further with reference to fig. 3, in some embodiments the distal end of the main catheter 1 is provided with a chamfer 15. In the process of inserting the bronchus blanking plug into the trachea of a patient, the far end of the main guide pipe 1 is difficult to avoid contacting with the trachea of the patient, compared with a flat cylindrical port, the arrangement of the chamfer 15 at the far end of the main guide pipe 1 is equivalent to the adjustment of the chamfer 15 into an inclined end surface, the damage of the far end of the main guide pipe 1 to the trachea of the patient can be reduced to a certain extent, and the effect of improving the insertion convenience of the main guide pipe 1 can be achieved.

In the embodiment in which the branch catheter 2 is disposed with the first tube section 21 and the second tube section 22 having an included angle with respect to fig. 1 and fig. 3, it is assumed that the deflection direction of the second tube section 22 with respect to the main catheter 1 is the direction Y, and in this embodiment, the deflection direction of the inclined slope of the distal chamfer 15 of the main catheter 1 with respect to the main catheter 1 may be correspondingly set as the direction Y; thereby, in the clinical use process, the convenience of the main catheter 1 in the process of inserting into the trachea of a patient can be further improved.

Referring to fig. 1 and 6, further, in some embodiments, the first air bag 5 is used to cover the upper side opening of the human glottis and seal the glottis after being inflated, so that the first air bag 5 does not need to be arranged in the human glottis or pass through the human glottis in a penetrating manner in a practical clinical use process, and damage to the patient glottis can be reduced while operation difficulty is reduced. Accordingly, in a specific embodiment, the first balloon 5 includes a middle portion 51 and a peripheral portion 52, and the peripheral portion 52 is inclined in a direction toward the distal end of the main catheter 1, so that the first balloon 5 forms a middle concave structure, and the structure of the first balloon 5 may be specifically configured to fit the shape of the upper opening of the glottis of a human body.

In other embodiments, the first air bag 5 may be configured in a cylindrical shape, and the first air bag 5 may be configured to be inserted into the glottis, so as to perform a sealing function on the air valve after the air is inflated. In other embodiments, the first balloon 5 may be configured to mate with the subglottal structure and enable the first balloon 5 to seal the glottis from the subglottal side after passing through the glottis.

In addition, it should be noted that, the first air bag 5 may be formed by blow molding, and the middle portion 51 of the first air bag 5 is provided with an installation through hole 53 for the main conduit 1 to pass through, in the actual assembly process, the first air bag 5 is sleeved at a corresponding position of the main conduit 1, and the fixed connection between the first air bag 5 and the main conduit 1 is achieved by means of bonding or thermoplastic connection. And it is understood that the first balloon 5 can be communicated with the inflation channel 7 in the main catheter 1, which means that the side wall of the main catheter 1 and the inner wall of the first balloon 5 are provided with butted ventilation structures, and the specific ventilation structures can be direct hole-hole alignment or covering ventilation or direct hole-column plug ventilation. Accordingly, the connection between the second balloon 6 and the branch catheter 2 is similar to the connection between the first balloon 5 and the main catheter 1, and will not be described here again.

Further, in some embodiments, the bronchial blanking plug further comprises a micro camera, the distal end of the main catheter 1 is provided with a mounting cavity for the micro camera to be embedded, so that the bronchial blanking plug can be pushed to a reasonable position through the micro camera, and the main catheter 2 can be conveniently ensured to be stretched into a proper position of a bronchus.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A bronchial blanking plug, comprising:

a main catheter including an exposed section outside the body;

2. The bronchial blanking plug of claim 1, wherein the inflation assembly includes an inflation lumen extending from the branch conduit to the exposed section of the main conduit, the first balloon and the second balloon each communicating with the inflation lumen, and an inflation tube in communication with the inflation lumen, the inflation tube being for connection to an inflation device.

3. The bronchial blanking plug of claim 2, wherein the inflation assembly further includes an indicator bladder and a one-way valve, the indicator bladder being connected to an end of the inflation tube remote from the inflation lumen, one end of the one-way valve being connected to the indicator bladder, the other end being configured to be connected to an inflation device.

4. The bronchial plug of claim 2, wherein the proximal end of the main conduit is provided with an inflation connector post, the inflation connector post being in communication with the inflation lumen, the inflation tube being connected to the inflation connector post.

5. The bronchial plug of claim 1, wherein the inflation assembly comprises a first inflation lumen, a second inflation lumen, a first gas tube and a second gas tube, the first inflation lumen being in communication with the first gas tube, one end of the first gas tube being connected to the first inflation lumen, the other end being for connection to an inflation device; the second inflation cavity is communicated with the second air bag, one end of the second air pipe is connected with the second inflation cavity, and the other end of the second air pipe is connected with the inflation device.

6. The bronchial blanking plug of claim 1, wherein the branch conduit includes a first tube segment and a second tube segment arranged in a direction away from the main conduit, the junction of the first tube segment and the second tube segment forming an included angle for fitting into a corner of a tracheal and bronchial communication region; the second air bag is sleeved on the second pipe section.

7. The bronchial blanking plug of claim 1, wherein the first balloon is configured to block an upper end opening of a glottis.

8. The bronchial blanking plug of claim 7, wherein the first balloon includes a medial portion and a peripheral portion, the peripheral portion being sloped in a direction toward the distal end of the main conduit.

9. The bronchial blanking plug of claim 1, further comprising a miniature camera, wherein the distal end of the main conduit is provided with a mounting cavity into which the miniature camera is embedded.

10. The bronchial blanking plug of claim 2, further comprising an extension conduit disposed in the exposed section of the bronchial catheter, the extension conduit having one end in communication with the bronchial lumen and the other end having a cover.