CN218961566U

CN218961566U - Two-cavity balloon catheter for airway

Info

Publication number: CN218961566U
Application number: CN202222323331.1U
Authority: CN
Inventors: 丁超
Original assignee: Cancer Hospital and Institute of CAMS and PUMC
Current assignee: Cancer Hospital and Institute of CAMS and PUMC
Priority date: 2022-09-01
Filing date: 2022-09-01
Publication date: 2023-05-05
Anticipated expiration: 2032-09-01

Abstract

The utility model provides a two-cavity balloon catheter for an air passage, which comprises a catheter body, wherein the catheter body comprises an air sac pipeline and an air vent pipeline, the air vent pipeline is internally provided with an air vent cavity, and an air sac cavity is formed between the air sac pipeline and the air vent pipeline; the front end of the air bag pipeline is provided with an air bag inflation hole which can inflate the cuff annularly arranged on the outer surface of the front end of the air bag pipeline. The first end of the Y-shaped connector is connected with the tail part of the catheter body, the second end of the Y-shaped connector is connected with the air bag inflating device, and the third end of the Y-shaped connector is connected with the ventilating device; after the third end of the Y-shaped connector is connected with an oxygen pipe, a conversion head and oxygen supply equipment, the target lung segment or sub-lung segment bronchus can be inflated to expand the target lung segment or sub-lung segment, the anatomical range of the target lung segment or sub-lung segment after ventilation is exposed, the technical problem that a thoracic surgeon cannot accurately identify the anatomical range of the target lung segment or sub-lung segment in operation can be effectively solved, the surgeon is guided to further operate, and the Y-shaped connector can be connected with alveolar lavage equipment and the like to realize the functions of alveolar lavage of the lung segment or sub-lung segment part and the like.

Description

Two-cavity balloon catheter for airway

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a two-cavity balloon catheter for an airway.

Background

The bronchus is a section of pipeline from the carina to the pulmonary valve, and the bronchus enters the lung from the pulmonary valve and continuously branches to form a tree-shaped bronchus tree. The bronchi (class 1) to alveoli of humans branch approximately 24. The bronchi enter the lung through the pulmonary portal, and are divided into the lobar bronchi (level 2), 3 branches of the right lung and 2 branches of the left lung. The leaf bronchi are divided into segment bronchi (3-4 th level), 10 branches of left and right lung. The segment bronchi branch repeatedly into small bronchi (5 th-10 th) and then into bronchioles (11 th-13 th), the bronchioles branch into terminal bronchioles (14 th-16 th), the branch from the leaf bronchi to the terminal bronchioles into the airway part in the lung, and the branch below the terminal bronchioles into the respiratory part of the lung, including respiratory bronchioles (17 th-19 th), alveolar ducts (20 th-22 th), alveolar sacs (23 rd) and alveoli (24 th).

An important premise for realizing accurate minimally invasive treatment of pulmonary nodule chest surgery is single-lung ventilation and accurate airway management in operation, traditional single-lung ventilation can only realize airway management of a main bronchus but can not realize pulmonary segment bronchus control ventilation, and the requirements of rapid development of thoracoscopic anatomical pulmonary segment excision minimally invasive surgery can not be met, so that technical updating is urgently needed. In particular to a controlled ventilation technology of a target pulmonary segment bronchus, which can selectively expand a diseased pulmonary segment in a single pulmonary ventilation state, effectively solves the technical problem that a thoracic surgeon cannot accurately identify the anatomical range of the target pulmonary segment in an operation, and simultaneously lays a foundation for realizing interventional treatment of pulmonary nodules through the pulmonary segment bronchus.

In thoracic surgery, a bronchus occluder is often used in combination with an endotracheal tube to occlude a bronchus on one side, to achieve ventilation of a single lung on the occluded side, to ventilation of a single lung on the opposite side, after collapse of the occluded side, the side chest has an operation space to facilitate the operation of a surgeon, to ventilation of a single lung on the opposite side to maintain the oxygen supply needs and gas exchange of the whole body of the patient, but the bronchus occluder is few and not suitable for occlusion of bronchi in the lung segment, because it does not have a visualization function, requires the application of a fiberoptic bronchoscope guide, and its function is focused on occlusion rather than ventilation, and its direction selection in the forward process is not very flexible. The bronchocloser usually needs to observe the inserted position of leading the bronchocloser front end and the blocking position of the cuff with the help of the fiber bronchoscope, such operation has increased the difficulty of patient's respiratory tract management, fiber bronchoscope and bronchocloser parallel in the course of the operation, occupy the narrow and small space in the endotracheal tube jointly, even if accomplish the accurate positioning of bronchocloser, the action of pulling out fiber bronchoscope also can lead to the position of bronchocloser to change, and because the operation of needing the lateral position and lying on one's side leads to the tracheal position to change in the chest surgery, the front end of indirectly arousing bronchocloser counterpoint is bad, need the supplementary adjustment repeatedly of fiber bronchoscope, therefore the clinical application of bronchocloser needs medical staff to grasp the coordinated cooperation of multi-instrument, be inconvenient for the quick, the accurate implementation of bronchoairway management in operation and anesthesia, be less suitable for the bronchocloser of lung section.

Therefore, the minimally invasive diagnosis and treatment of the chest surgery urgently needs a bronchial catheter which can enter a target lung segment or a sub-lung segment bronchus through an operation pore canal under the guidance of a fiber bronchoscope, the front end cuff of the catheter is inflated to seal the bronchus opening of the lung segment where the catheter is positioned in a collapsed state of one side lung, then the inner cavity of the two-cavity balloon catheter is inflated to the target lung segment through the airway, usually oxygen is inflated, so that the target lung segment is selectively inflated, a surgeon is helped to accurately identify and judge the target lung segment or the sub-lung segment in the operation process, the technical problem that the chest surgeon cannot accurately identify the anatomical range of the target lung segment or the sub-lung segment in the operation is effectively solved, and the accurate minimally invasive treatment of the chest surgery is assisted. The lung segment or sub-lung segment is precisely resected, thereby maximally preserving healthy lung tissue and maximally preserving the lung function of the patient.

Disclosure of Invention

Aiming at the problems, in order to realize horizontal anatomical positioning of a lung segment or a sub-lung segment by inflating the bronchus of the lung segment or the sub-lung segment and help a chest surgeon to accurately identify the target lung segment, the utility model develops the two-cavity balloon catheter for the airway with accurate airway management after single-lung ventilation, which is used in combination with a fiber bronchoscope, enters through an operation pore canal of the fiber bronchoscope, and realizes accurate airway management of bronchi or small bronchi of the selective target lung segment or sub-lung segment aiming at the accurate minimally invasive surgery requirement of excision of the lung lobes (lung segment/sub-segment/combined sub-segment) of the anatomical part of the thoracoscope, thereby enabling the surgeon to accurately identify the anatomical structure of the target lung segment, solving the technical problem of identifying the functional lung segment in the surgery and further realizing successful implementation of the excision of the anatomical part of the lung lobes of the assisted chest surgery.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a two-lumen balloon catheter for an airway, comprising:

the catheter comprises a catheter body 1, wherein the catheter body 1 comprises a balloon pipeline 2 and a vent pipeline 3, a vent cavity is formed in the vent pipeline 3, and a balloon cavity is formed between the balloon pipeline 2 and the vent pipeline 3; the front end of the air bag pipeline 2 is provided with an air bag inflation hole 4;

a cuff 5, wherein the cuff 5 is annularly arranged on the outer surface of the front end of the air bag pipeline 2 and is communicated with the air bag inflation hole 4;

the first end of the Y-shaped connector 6 is connected with the tail part of the catheter body 1, the second end of the Y-shaped connector 6 is connected with the air bag inflating device, and the third end of the Y-shaped connector is connected with the air passage inflating device;

the air bag inflating device is communicated with the air bag cavity through the second end and is used for inflating the sleeve bag 5;

the airway ventilation device is communicated with the ventilation cavity through the third end and is used for injecting and discharging oxygen into the airway through the ventilation cavity in the catheter body 1.

Further, the balloon tube 2 is 5 to 10mm shorter than the vent tube 3.

Further, the length of the sleeve bag 5 is 5-15mm, the sleeve bag is spherical after being inflated, and the radius is 5-20mm.

Further, the catheter body 1 is cylindrical, the outer diameter of the balloon pipe 2 is 1.5-2.8 mm, and the inner diameter of the ventilation pipe 3 is 1.0-2.6 mm.

Further, both ends of the cuff 5 are provided with radio-opaque bands.

Further, the inflation device comprises a sleeve inflation catheter 11, a first connector 12 and a first cross valve 13 which are sequentially connected, the sleeve inflation catheter 11 is communicated with the air bag cavity, and the first cross valve is provided with an injection interface and can be externally connected with the injector 8.

Further, the syringe 8 is provided with graduations, which show the inflated diameter of the cuff 5.

Further, the ventilation device comprises a ventilation catheter 21, a second connector 22 and a second cross valve 23 which are sequentially connected, the ventilation catheter 21 is communicated with a ventilation cavity in the catheter body 1, oxygen can be injected into and discharged from an air passage, and the second cross valve 23 is provided with a luer connector and can be externally connected with a ventilation pipe 24.

Further, one end of the vent pipe 24 is provided with a vent fitting adapted to the luer fitting of the second cross valve 23, and the other end is provided with a first luer fitting 25 to be connected to the adapter 7.

Further, the adapter 7 is provided with a second luer fitting 71 at one end for connection to the ventilation tube 24 and with an interface 72 at the other end adapted for connection to an oxygen supply device.

Compared with the prior art, the utility model has the advantages that:

the two-cavity balloon catheter for the airway, which is developed by the utility model, is used in combination with the fiberbronchoscope by entering through the operation pore canal of the fiberbronchoscope, and the head opening and the cuff position of the two-cavity balloon catheter for the airway can be observed in real time through the fiberbronchoscope, so that the head of the two-cavity balloon catheter for the airway can be observed and guided into a target lung segment or a sub-lung segment bronchus or a lower lung segment in real time in the clinical use process, and the tissue morphology structure in the trachea and the bronchus can be observed in the advancing process of the head of the two-cavity balloon catheter for the airway, and the accurate minimally invasive operation requirement of the resection of the anatomical part of the lung lobe (lung segment/sub-segment/combined sub-segment) of the thoracoscope is met, thereby realizing the accurate airway management of the selective target lung segment bronchus, further realizing the technical problem that a surgeon accurately identifies the target lung segment anatomy structure, solving the technical problem of the functional lung segment in the operation, and further realizing the successful implementation of the anatomical part lobectomy operation of the assisted thoracic surgery. Save anesthesia and operation time and improve the safety of chest surgery. Thereby keeping healthy lung tissues to the maximum extent and keeping the lung function of the patient to the maximum extent.

Drawings

In order to more clearly illustrate the embodiments of the present 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, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural view of a two-lumen balloon catheter for airways according to one embodiment of the present utility model;

FIG. 2 is a schematic structural view of a two-lumen balloon catheter for airways according to another embodiment of the present utility model;

FIG. 3 is a schematic view of an oxygen tube according to one embodiment of the present utility model;

fig. 4 is a schematic structural view of a syringe according to an embodiment of the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be examined and fully described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as proximal end, distal end, front end, rear end, etc.) in this embodiment are merely used to explain the relative positional relationship, movement conditions, etc. of the components in the general operation posture, that is, the side close to the operator is referred to as proximal end, rear end, or tail, and the side far from the operator is referred to as distal end, front end, or head, and if the operation posture is changed, the directional indicators are correspondingly changed.

According to the present utility model, there is provided a two-lumen balloon catheter for airways, as shown in fig. 1 to 4, comprising:

the catheter body 1, the catheter body 1 comprises a balloon pipeline 2 and a vent pipeline 3, a vent cavity is formed in the vent pipeline 3, and a balloon cavity is formed between the balloon pipeline 2 and the vent pipeline 3; the front end of the air bag pipeline 2 is provided with a sleeve bag air charging hole 4. The number of the cuff inflation holes 4 can be 1 or a plurality of the same.

The sleeve bag 5 is annularly arranged on the outer surface of the front end of the air bag pipeline 2 and is communicated with the sleeve bag inflation hole 4; the catheter balloon catheter 2 is coated with a hydrophilic lubricious coating to facilitate easy movement of the catheter within the operative corridor of the bronchoscope. The cuff 5 is wrapped around the ventilation duct 3 in a balloon-like manner in an inflated state.

The first end of the Y-shaped connector 6 is connected with the tail part of the catheter body 1, the second end is connected with the balloon inflating device, and the third end is connected with the ventilating device;

the cuff inflation device comprises a cuff inflation catheter 11, a first connector 12 and a first cross valve 13 which are sequentially connected, wherein the cuff inflation catheter 11 is communicated with an air bag cavity, and the first cross valve is provided with an injection interface and can be externally connected with an injector 8. The injector 8 is communicated with the air sac cavity through the first cross valve 13, the first connector 12, the cuff inflation conduit 11 and the second end of the Y-shaped connector 6, so as to inflate the cuff 5, after inflation, the air sac cavity can be closed through the first cross valve 13, the cuff is kept in an inflated state, and then the injector 8 is disconnected and removed, so that the influence of articles in operation on an operator is reduced, and the influence of the articles on the operator is prevented.

The syringe 8 is provided with a scale which shows the inflated diameter of the cuff. For example, if the scale is 15mm, meaning pushing from this position to the bottom, the diameter of the cuff after inflation is 15mm, that is the gas in the syringe is virtually equal to the gas of the cuff plus the gas of the balloon lumen. Thus, the graduations on the syringe 8 need to be custom fitted to the catheter.

The ventilation device comprises a ventilation catheter 21, a second connector 22 and a second cross valve 23 which are sequentially connected, wherein the ventilation catheter 21 is communicated with a ventilation cavity in the catheter body 1, oxygen can be injected into and discharged from an air passage, and the second cross valve 23 is provided with a luer connector and can be externally connected with a ventilation pipe 24. After the ventilation device is externally connected with the ventilation pipe 24 and then is externally connected with an air source, oxygen can be injected into and discharged from the air passage through the ventilation cavity in the ventilation pipe body 1 which is communicated with the third ends of the second U-shaped valve 23, the second joint 22, the ventilation pipe 21 and the Y-shaped joint,

the components in the air charging device and the ventilation device are detachable components so as to be convenient to store and place, and the components can be directly assembled through all connectors in operation, so that the device is convenient, simple and quick to use.

One end of the vent pipe 24 is provided with a vent fitting adapted to the luer fitting of the second cross valve 23, and the other end is provided with a first luer fitting 25 for connection with the adapter 7. The other end of the ventilation pipe 24 is provided with a luer connector, and can be connected with external oxygen output equipment, alveolar lavage equipment and the like in addition to the conversion interface 7, so that the functions of alveolar lavage and the like of a lung segment or a sub-lung segment part can be realized.

The adapter 7 is provided with a second luer fitting 71 at one end for connection to the ventilation tube 24 and with an interface 72 at the other end adapted for connection to an oxygen supply device. The oxygen supply device can be a breathing machine or a breathing air bag, and the interface of the breathing machine or the breathing air bag is thicker and is a straight port, so that the adapter 7 is needed to be connected to the other end of the oxygen pipe, thereby forming an oxygen supply air passage.

Likewise, the second valve may be closed to maintain the inflation of the target lung segment or sub-lung segment.

In one embodiment, the length of the cuff 5 is 5-15mm, the cuff is balloon-shaped after inflation, and the balloon radius is 5-20mm. By the arrangement, after the cuff 5 is inflated, the bronchus pipeline of the lung segment or the sub-lung segment can be completely blocked, so that the bronchus blocking of the lung segment can be conveniently realized. After the third end of the Y-shaped connector is connected with an oxygen pipe, a conversion head and oxygen supply equipment, the bronchus of the target lung segment or the sub-lung segment can be inflated to expand the target lung segment or the sub-lung segment, the anatomical range of the aerated target lung segment or the sub-lung segment can be exposed, the technical problem that a thoracic surgeon cannot accurately identify the anatomical range of the target lung segment or the sub-lung segment in operation can be effectively solved, and the surgeon is guided to further operation.

The forward end of the catheter body 1 is preferably hollow and edge-arcuate to reduce drag and avoid scoring tissue structures as the catheter body 1 is advanced out of the bronchoscope in the lung segment.

In one embodiment, the balloon conduit 2 is 5-10 mm shorter than the vent conduit 3, as shown in fig. 2.

In one embodiment, the cuff 5 is provided with a radiopaque band at both ends. For viewing the balloon position through the X-ray screen.

The catheter body 1 is hollow cylindrical, the outer diameter of the air sac pipeline is 1.5-2.8 mm, the inner diameter of the ventilation pipeline is 1.0-2.6 mm, so that the catheter body can be inserted into a bronchus of a lung segment or a sub-lung segment of a patient through an operation pore canal of a fiber bronchoscope, and the catheter body can have the following specification: the outer diameter of the air sac pipeline is 1.8 mm, the inner diameter of the ventilation pipeline is 1.5mm, and the air sac pipeline is suitable for being matched with a fiber bronchoscope with the diameter of a pore canal of 2 mm; the outer diameter of the air sac pipeline is 2.8mm, the inner diameter of the ventilation pipeline is 2.5mm, and the air sac pipeline is suitable for being matched with a fiber bronchoscope with the operating pore canal diameter of 3 mm.

The two-cavity balloon catheter for the airway can fully coat the whole surface of the balloon with lubricant (paraffin oil, lidocaine gel or medical water-soluble gel and the like) before use, and the insufficient lubrication can cause friction between the balloon and the inner wall of an operation pore canal of a bronchofiberscope, so that the balloon is damaged.

The two-lumen balloon catheter for airways of the present utility model can be used for pulmonary airway management, wherein the airways include, but are not limited to, the pulmonary segment bronchi, the pulmonary sub Duan Zhi trachea, the bronchioles, and also include the bronchioles and the like mentioned above.

The two-cavity balloon catheter combined bronchofiberscope for the airway enters the bronchus of a lung segment and the lung segment at the next stage, such as the bronchus of the lung segment, the bronchus of a sub-lung segment or the bronchus of a small bronchus, the bronchiole and the like, can be used for isolating the lung segment to be blocked or ventilated in a controlled manner during thoracic surgery such as lung tumor and the like, and particularly aims at the accurate minimally invasive surgery requirement of guiding the excision of anatomical parts of lung lobes (lung segment/sub-segment/combined sub-segment) of a downstream thoracoscope based on a three-dimensional reconstruction/3D printing model, the bronchus of the target lung segment can be selectively blocked or opened in the surgery process, so that a surgeon can accurately identify the anatomical structure of the target lung segment, the technical problem of identifying the functional lung segment in the surgery is solved, and the implementation of the anatomical part of lung lobe excision surgery of the assisted thoracic surgery is further improved.

The two-lumen balloon catheter for the airway is combined with a bronchofiberscope, enters into a bronchus of a lung segment and a lung segment at a next stage, such as a bronchus of the lung segment, a bronchus of a sub-lung segment or a bronchus, a bronchiole and the like, and can be connected with alveolar lavage equipment and the like to realize the functions of alveolar lavage of the lung segment or a sub-lung segment part and the like.

The two-cavity balloon catheter for the airway can be used once, can be in short-term contact with a human body in operation, and can be expected to accumulate contact time within 24 hours.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting thereof; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A two-lumen balloon catheter for an airway, the two-lumen balloon catheter for an airway comprising:

the catheter comprises a catheter body (1), wherein the catheter body (1) comprises a balloon pipeline (2) and a ventilation pipeline (3), a ventilation cavity is formed in the ventilation pipeline (3), and a balloon cavity is formed between the balloon pipeline (2) and the ventilation pipeline (3); the front end of the air bag pipeline (2) is provided with an air bag inflation hole (4);

the sleeve bag (5) is annularly arranged on the outer surface of the front end of the air bag pipeline (2) and is communicated with the air bag inflation hole (4);

the first end of the Y-shaped connector (6) is connected with the tail part of the catheter body (1), the second end of the Y-shaped connector is connected with the air bag inflating device, and the third end of the Y-shaped connector is connected with the air passage inflating device;

the air bag inflating device is communicated with the air bag cavity through the second end and is used for inflating the cuff (5);

the airway ventilation device is communicated with the ventilation cavity through the third end and is used for injecting and discharging oxygen into the airway through the ventilation cavity in the catheter body (1).

2. A two-lumen balloon catheter for airways according to claim 1, characterized in that the balloon conduit (2) is 5-10 mm shorter than the ventilation conduit (3).

3. A two-lumen balloon catheter for airways according to claim 1, characterized in that the length of the cuff (5) is 5-15mm, the cuff is balloon-shaped after inflation, and the radius is 5-20mm.

4. The two-lumen balloon catheter for airways according to claim 1, characterized in that the catheter body (1) is cylindrical, the outer diameter of the balloon tube (2) is 1.5-2.8 mm, and the inner diameter of the ventilation tube (3) is 1.0-2.6 mm.

5. A two-lumen balloon catheter for airways according to claim 1, characterized in that both ends of the cuff (5) are provided with radio-opaque strips.

6. The two-lumen balloon catheter for airways according to claim 1, characterized in that the inflation device comprises a cuff inflation catheter (11), a first connector (12) and a first cross valve (13) connected in sequence, the cuff inflation catheter (11) is communicated with the balloon lumen, and the first cross valve is provided with an injection interface, which can be externally connected with an injector (8).

7. A two-lumen balloon catheter for airways according to claim 6, characterized in that the syringe (8) is provided with graduations showing the inflated diameter of the cuff (5).

8. The two-lumen balloon catheter for airways according to claim 1, characterized in that the ventilation device comprises a ventilation catheter (21), a second connector (22) and a second valve (23) which are connected in sequence, the ventilation catheter (21) is communicated with the ventilation lumen in the catheter body (1) and can inject and discharge oxygen into and from the airways, and the second valve (23) is provided with a luer connector and can be externally connected with a ventilation tube (24).

9. A two-lumen balloon catheter for airways according to claim 8, characterized in that the vent tube (24) is provided with a vent fitting at one end adapted to the luer fitting of the twentieth valve (23) and with a first luer fitting (25) at the other end for connection to the adapter (7).

10. A two-lumen balloon catheter for airways according to claim 9, characterized in that the adapter (7) is provided with a second luer fitting (71) at one end for connection with a ventilation tube (24) and with a mouthpiece (72) at the other end adapted for connection with an oxygen supply device.