CN214761283U

CN214761283U - Visual bronchus plugging device

Info

Publication number: CN214761283U
Application number: CN202120768979.2U
Authority: CN
Inventors: 丁超; 杨晓琦
Original assignee: Cancer Hospital and Institute of CAMS and PUMC
Current assignee: Cancer Hospital and Institute of CAMS and PUMC
Priority date: 2020-06-24
Filing date: 2021-04-15
Publication date: 2021-11-19
Anticipated expiration: 2031-04-15

Abstract

The utility model provides a visual bronchus plugging device, include: the catheter comprises a catheter body and a catheter head which forms an included angle of 25-35 degrees with the axial direction of the catheter body; the cuff is annularly arranged at the head part of the catheter; the balloon inflation catheter is arranged in the wall of the catheter body; the visual assembly is arranged at the front part of the catheter body and comprises a miniature camera, an LED light source and a cleaning port, and the tail part of the catheter body is provided with an air bag inflation interface, a data interface, a flushing interface, a catheter ventilation and suction interface. Through the utility model discloses, need not fix a position with the help of fiberoptic bronchoscope, just can survey pipe head mouth of pipe and cover bag position in real time, observe and guide the occluder head and get into target bronchus or target lung segment bronchus to can be at visual bronchus occluder pipe head in-process observation trachea and the intrabronchial tissue morphological structure, simplified the clinical operation step of current product, save operating time, improve the clinical practical value and the convenience of visual bronchus occluder.

Description

Visual bronchus plugging device

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a visual bronchus plugging device.

Background

The bronchus is a section of the tube from the carina of the trachea to the lung, and is arranged on the left and the right. The left bronchus is slender and is about 4-5 cm, the bronchus is relatively inclined, the included angle between the bronchus and the extension line of the bronchus is 40-50 degrees, the left bronchus is approximately flush with the 6 th thoracic vertebral body in height, and the bronchus enters the left lung through the left lung portal; the right bronchus is thick and short, 2-3 cm long, steep and straight, is almost a direct continuation of the bronchus, has an included angle of 25-30 degrees with the extension line of the bronchus, is at the high position of the 5 th thoracic vertebral body and enters the right lung through the right pulmonary portal. The bronchi are constructed similarly to the trachea. Except that the cartilage begins to fragment and is not intact. The bronchi enter the lungs from the hilum of the lung and branch continuously to form a branch, which is called the bronchial tree.

In thoracic surgery, the bronchus stopper is often used in combination with a single-cavity tracheal catheter, so that the bronchus on one side is blocked, the blocked side lung is not ventilated, the contralateral lung is ventilated in a single lung, after the blocked side lung collapses, the side thoracic cavity is provided with an operation space, which is convenient for operation of a surgeon, and the contralateral lung is ventilated to maintain the whole oxygen supply requirement and gas exchange of a patient.

The bronchial occluder usually needs to be assisted by a fiberbronchoscope to observe the position for guiding the insertion of the front end of the bronchial occluder and the blocking position of the cuff, the operation increases the difficulty of the respiratory tract management of the patient, the fiberbronchoscope and the bronchus plugging device jointly occupy the narrow space in the single-cavity tracheal catheter in the operation process, even if the accurate positioning of the bronchial occlusion device is completed, the position of the bronchial occlusion device can be changed by the action of pulling out the fiberbronchoscope, in addition, the trachea position is changed due to the need of side lying position in the thoracic surgery and operation, which indirectly causes poor front end positioning of the bronchus stopper and requires repeated adjustment assisted by a fiberbronchoscope, therefore, clinical application of the bronchial occluder requires that medical staff can master coordination of multiple instruments, which is not favorable for quick and accurate implementation of surgery and anesthesia airway management.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the utility model provides a visual bronchus plugging device has overcome current bronchus plugging device location difficulty, need be with the help of the problem that the fiberoptic bronchoscope was fixed a position repeatedly.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a visual bronchial occlusion device, comprising:

the front end of the catheter body extends along a direction forming an included angle of 25-35 degrees with the axial direction of the catheter body to form a catheter head;

the cuff is annularly arranged at the head of the catheter;

the cuff inflation catheter is arranged in the catheter wall of the catheter body, one end of the cuff inflation catheter is connected with the cuff, and the other end of the cuff inflation catheter is communicated with the first cuff inflation interface and/or the second cuff inflation interface at the tail end of the catheter body and is used for inflating the cuff;

the visual assembly is arranged on the outer surface of the front end of the catheter body and comprises a micro camera, an LED light source and a cleaning port, a data line and/or a power line of the micro camera and the LED light source are/is arranged in the wall of the catheter body, and the other ends of the data line and/or the power line of the micro camera and the LED light source are/is connected with a data interface at the tail part of the catheter body; the cleaning port is used for cleaning the camera;

the cleaning pipeline is arranged in the pipe wall of the catheter body, one end of the cleaning pipeline is a cleaning port, and the other end of the cleaning pipeline is communicated with a flushing port at the tail part of the catheter body;

the catheter ventilation and suction interface is communicated with the inner cavity of the catheter head through the inner cavity of the catheter body and used as a main cavity channel of the visible bronchus stopper, and the catheter ventilation and suction interface can discharge residual gas in the blocked side lung and can also suck the residual gas or secretion in the blocked side lung by an external suction device;

the joint is provided with a working hole, and the catheter body can penetrate through the working hole and can freely slide.

Further, the second bladder inflation interface comprises a storage bladder and an opening and closing valve connected in sequence.

Furthermore, the surfaces of the miniature camera and the LED light source are coated with hydrophobic and oleophobic coatings.

Furthermore, the visual assembly is arranged on the opposite side of the bent side of the front part of the catheter body towards the catheter head, the forward visual field of the micro-camera is the axial direction of the catheter body, and the position condition of the catheter head and the cuff can be observed in the visual range of the micro-camera.

Further, the length of the cuff is 10-12 mm, and the distance between the front end of the cuff and the pipe orifice of the catheter head is less than or equal to 5 mm.

Further, the ring distance of the inflated cuff is less than or equal to 5 mm.

Further, the catheter body is cylindrical, the outer diameter of the catheter body is 3-4mm, and distance marks are arranged on the outer surface of the catheter body; the visual element has a radial length not exceeding 2.5 mm.

Furthermore, the joint is provided with an interface connected with the breathing circuit, an interface connected with the tracheal catheter and a gasket with a cover, the working hole is arranged on the gasket with the cover, and the gasket with the cover is also provided with a catheter fixing part.

Further, the interface of connecting endotracheal tube is the awl cylindricality, and the external diameter is 14 ~ 16mm to be connected with endotracheal tube, when the pipe body withdraws, this interface can also accomodate the pipe head of visual bronchus occluder.

Furthermore, the rear half part of the catheter body is provided with a plurality of stripes slightly protruding out of the outer surface of the catheter body along the axial direction of the catheter body so as to increase the friction force on the surface of the catheter and facilitate an operator to rotate the catheter at a position above the gasket with the cover so as to adjust the advancing direction of the catheter head of the visual bronchus stopper.

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

this visual bronchus plugging device can survey pipe head mouth of pipe and cuffed bag position in real time, can observe in real time in clinical use and guide the plugging device head and get into target bronchus or target lung segment bronchus, and can observe trachea and the intrabronchial tissue morphological structure at visual bronchus plugging device pipe head march in-process, consequently according to clinical needs at the operation in-process, need not adjust front end mouth of pipe and cuffed bag position at any time with the help of the location of fiberoptic bronchoscope, thereby simplify the clinical operation step of current product, save operating time, improve the clinical practical value and the convenience of visual bronchus plugging device, provide good single lung state of ventilating for thoracic surgery, save anesthesia and operating time, improve thoracic surgery's security.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a visual bronchial occluder according to an embodiment of the present invention;

figure 2 is a schematic view of a cross section of a visible bronchial occluder head in accordance with an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a side wall of a visual bronchial occlusion device according to an embodiment of the present invention, wherein dotted lines from top to bottom respectively represent a power line of an LED light source, a power line or a data line of a micro-camera, and a cleaning pipeline;

FIG. 4 is a schematic illustration of the construction and use of an airbag inflation interface according to one embodiment of the present invention;

fig. 5 is a schematic structural view of a union joint according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to check and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as the near end, the far end, the front end, the rear end, etc.) in the present embodiment are only used to explain the relative positional relationship, the motion situation, etc. of the components in the general operation posture, that is, the side close to the operator is called the near end, the rear end or the tail, and the side far away from the operator is called the far end, the front end or the front, and if the operation posture is changed, the directional indicator is changed accordingly.

According to the utility model provides a visual bronchus plugging device, as shown in fig. 1-5, include:

the catheter comprises a catheter body 1, wherein the front end of the catheter body 1 extends along the direction forming an included angle of 25-35 degrees with the axial direction of the catheter body to form a catheter head 17;

a cuff 2, wherein the cuff 2 is annularly arranged on the outer surface of the catheter head 17;

the cuff inflation catheter 9 is arranged in the tube wall of the catheter body 1, one end of the cuff inflation catheter 9 is connected with the cuff 2, and the other end of the cuff inflation catheter 9 is communicated with the first cuff inflation interface 16 and/or the second cuff inflation interface 21 at the tail end of the catheter body 1 and is used for inflating the cuff;

the visual component 3 is arranged on the outer surface of the front part of the catheter body 1 and comprises a micro camera 4, an LED light source 5 and a cleaning opening 6, data lines and/or power lines of the micro camera 4 and the LED light source 5 are arranged in the tube wall of the catheter body 1, and the other ends of the data lines and/or the power lines of the micro camera 4 and the LED light source 5 are connected with a data interface 11 at the tail part of the catheter body 1; the cleaning opening 6 is used for cleaning the camera, and the forward view of the micro camera is the axial direction of the catheter body, so that the advancing direction of the catheter, the position of the front end of the catheter and the cuff and the condition of the lung trachea can be observed in the visible range of the micro camera, for example, whether the front end of the catheter enters a target bronchus or a target lung segment bronchus, whether the cuff is completely inflated, whether the cuff is in contact with the catheter wall, whether secretions or foreign matters exist in the airway, and the like.

The cleaning pipeline is arranged in the pipe wall of the catheter body 1, one end of the cleaning pipeline is a cleaning port 6, and the other end of the cleaning pipeline is communicated with a flushing port 12 at the tail part of the catheter body;

the tail end of the catheter body 1 extends to form the catheter ventilation and suction interface 13, the catheter ventilation and suction interface 13 is communicated with the inner cavity of the catheter head 17 through the inner cavity of the catheter body 1 and serves as a main channel of the catheter body 1, and the catheter ventilation and suction interface 13 can discharge residual gas in the blocked side lung and can also suck residual gas or secretion in the blocked side lung by an external suction device;

a union joint 7 having a working hole through which the catheter body 1 can pass and freely slide.

As shown in fig. 2, a plurality of LED light sources 5 may be distributed around the micro-camera 4, so as to improve brightness and make the video collected by the micro-camera 4 more clear and recognizable. The cleaning opening 6 can be a plurality of openings so as to better clean the micro-camera 4 or the human trachea and/or bronchial tissue lacunae in front of the micro-camera 4, so that the micro-camera 4 can better observe the structure of the trachea and/or bronchial tissue lacunae. Preferably, the number of the LED light sources 5 and the number of the cleaning openings 6 are 2, and the LED light sources and the cleaning openings are distributed around the micro camera 4. The flushing port 12 is communicated with the cleaning port 6 and can be used for air flushing and flushing after being connected with an injector, so that the clear visual field of the lens is ensured.

Preferably, the surfaces of the micro-camera and the LED light source are coated with hydrophobic and oleophobic coatings so as to prevent liquid in the lung from being retained on the surfaces of the micro-camera 4 and the LED light source 5 and influencing the observation effect of the micro-camera.

Preferably, the visual component 3 is arranged on the opposite side of the front part of the catheter body 1 to the side where the catheter head 17 bends, the forward view of the micro-camera 4 is the axial direction of the catheter body 1, and the position of the catheter head 17 and the cuff 2 can be observed in the visual range of the micro-camera 4. In the operation, the micro camera can send images to the display device through the data interface 11, a doctor can move and adjust the catheter body to position according to the images, and can observe the advancing direction of the catheter, the positions of the front end of the catheter and the cuff and the conditions of the lung trachea, such as whether the front end of the catheter enters a target bronchus or a target lung segment bronchus, whether the cuff is completely inflated, whether the cuff is in contact with the catheter wall, whether secretions or foreign bodies exist in the airway and the like.

The cuff inflation catheter 9 extends out of the catheter body to form a first cuff inflation interface 16, and a syringe can be used for directly inflating and deflating the cuff 2 through the first cuff inflation interface 16 to enable the cuff 2 to expand or collapse, so that the purpose that the collateral bronchus is blocked or opened by the cuff 2 is achieved, and selective ventilation of the collateral bronchus and ventilation of a single lung of the contralateral lung are achieved.

In another embodiment, as shown in FIG. 4, the cuff inflation tube 9 is further formed with a second cuff inflation port 21 extending out of the tube wall of the tube body, the second cuff inflation port 21 is connected to the storage balloon 15 and an on-off valve 21 in sequence, and the on-off valve 21 is communicated with the cuff inflation tube 9. The air can be injected into the storage air bag 15 directly in advance by a syringe through the cuff inflation interface 21 to be expanded, when the front end catheter port of the visible bronchus stopper and the air bag reach the target bronchus, the opening and closing valve 21 is opened, the air in the storage air bag 15 can push the air to the air bag 2 to be expanded through the cuff inflation catheter 9 by virtue of the restoring force (contraction force) of the storage air bag 15, so that the purpose that the bronchus is blocked by the cuff 2 is achieved, and the selective ventilation of the bronchus and the single lung ventilation of the contralateral lung are realized.

The reservoir balloon 15 can serve as an indicator balloon, and the reservoir balloon 15 is in communication with the balloon 2 through the open/close valve 21 and the cuff inflation catheter 9, so that the inflation state of the balloon 2 can be indirectly indicated.

The radial length of the visual component 3 is not more than 2.5mm, and the technical requirement of clear visualization of respiratory tract in lung can be met.

The length of the cuff 2 is 10-12 mm, and the distance between the front end of the cuff and the pipe orifice of the catheter head is less than or equal to 5 mm; the ring distance is less than or equal to 5mm after the cuff is inflated. By means of the arrangement, the cuff 2 can completely block the bronchial tube after being inflated and expanded, the bronchial occlusion is convenient to realize, the single lung on the opposite side is ventilated, and the lung on the occlusion side is collapsed, so that convenience is brought to the operation in the thoracic cavity on the occlusion side.

The catheter body is cylindrical, the outer diameter of the catheter body is 3-4mm, and the catheter body can penetrate into a pulmonary bronchus or a segmental bronchus, so that the pulmonary bronchus or the segmental bronchus on one side can be specially and selectively blocked.

The outer surface of the catheter body is provided with distance marks, so that a user can better master the depth of the catheter entering the bronchus of the lung.

As shown in fig. 5, the joint 7 is provided with a port 8 (male fitting portion) for connecting the breathing circuit, and can be connected to the breathing circuit in a sealed manner. The respiratory loop or the respiratory saccule is communicated with the inner cavity of the joint through the interface 8, the inner cavity of the joint is connected with a tracheal catheter (such as a single-cavity bronchial catheter) through the joint 7 and is communicated with the lung trachea at the front end for ventilation, so that the gas exchange and the oxygen supply of the human body in a mechanical ventilation or auxiliary ventilation state are ensured.

The joint 7 is also provided with a connector 19 for connecting the endotracheal tube, the connector is in a conical column shape, the outer diameter is 14-16 mm, preferably 15mm, and the shape ruler meter of the conical column-shaped connector meets the industrial standard of the endotracheal tube. The hub 19 also has a storage function capable of storing the catheter head 17 when the catheter body 1 is retracted. After the use of the visual bronchial occluder is finished and the separation lung ventilation is finished, the catheter head 17 is stored, so that the space occupation of the tracheal catheter intracavity pipeline can be reduced, and the ventilation airway resistance of a patient is reduced.

The union fitting 7 is fitted with a capped fibre insert 10 for closing one end of the union fitting so that, when a ventilator or the like is connected to the breathing circuit interface, the ventilator can be looped through the union interface with the lungs. After the cover is opened, the lung can be communicated with external air, so that residual gas and the like can be conveniently discharged. The capped pad 10 is provided with a working hole and a tube fixing portion 18. The catheter fixing part comprises an upright post fixed on the pad 10 and a positioning clamp on the upright post, when the head of the catheter reaches a preset target bronchus or a segment bronchus through the miniature camera, the catheter can be clamped on the positioning clamp, the position change of the adjusted catheter body is prevented, and effective bronchus blockage and single lung ventilation cannot be realized.

The axial direction of the rear half-section catheter body of the visual bronchus stopper is provided with a plurality of stripes slightly protruding out of the surface of the catheter so as to increase the friction force on the surface of the catheter, and an operator can rotate the catheter at the position above the gasket with the cover so as to adjust the advancing direction of the catheter head of the visual bronchus stopper.

The utility model discloses a plugging device, before the use, should fully coat emollient (lidocaine gel or medical water-soluble gel) on the whole surface of gasbag, lubricated not enough can lead to gasbag and endotracheal tube to take place the friction to lead to the damage of gasbag.

The utility model discloses catheter body 1 part also can pass two-chamber bronchus pipe (this pipe enters into lung bronchus) and gets into the lung section of more next grade, can be used to carry out the isolation lung section controllability of chest surgery such as lung tumour and block or ventilate, especially to the accurate minimal access surgery needs of the excision of thoracoscope dissection part lung lobe (lung section/inferior section/combined inferior section) based on three-dimensional reconstruction 3D printing model navigation down, can selectively block or open target lung section bronchus in the operation process, realize the purpose that lung section or lung inferior section controllability block or ventilate.

The utility model can be used once, and can be contacted with human body in short time in operation, and the expected accumulated contact time is within 24 h.

The above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A visual bronchial occluder, comprising:

the catheter comprises a catheter body (1), wherein the front end of the catheter body (1) extends along the direction forming an included angle of 25-35 degrees with the axial direction of the catheter body to form a catheter head (17);

a cuff (2), the cuff (2) being annularly arranged on the outer surface of the catheter head (17);

the cuff inflation catheter (9) is arranged in the tube wall of the catheter body (1), one end of the cuff inflation catheter (9) is connected with the cuff (2), and the other end of the cuff inflation catheter (9) is communicated with a first cuff inflation interface (16) and/or a second cuff inflation interface (21) at the tail end of the catheter body (1) and is used for inflating the cuff;

the visual component (3) is arranged on the outer surface of the front part of the catheter body (1) and comprises a micro camera (4), an LED light source (5) and a cleaning port (6), a data line and/or a power line of the micro camera (4) and the LED light source (5) are arranged in the tube wall of the catheter body (1), and the other ends of the data line and/or the power line of the micro camera (4) and the LED light source (5) are connected with a data interface (11) at the tail part of the catheter body (1); the cleaning port (6) is used for cleaning the camera;

the cleaning pipeline is arranged in the pipe wall of the catheter body (1), one end of the cleaning pipeline is a cleaning port (6), and the other end of the cleaning pipeline is communicated with a flushing port (12) at the tail part of the catheter body;

the catheter ventilation and suction interface (13) is formed by extending the tail end of the catheter body (1) to form the catheter ventilation and suction interface (13), the catheter ventilation and suction interface (13) is communicated with the inner cavity of the catheter head through the inner cavity of the catheter body and serves as a main cavity channel of the visual bronchus stopper, and the catheter ventilation and suction interface (13) can discharge residual air in the lung at the blockage side and can also suck the residual air or secretion in the lung at the blockage side by an external suction device;

a union joint (7) having a working hole through which the catheter body can pass and freely slide.

2. Visual bronchial occluder according to claim 1, wherein said second cuff inflation interface (21) comprises a storage cuff (15) and an on-off valve (14) connected in series.

3. Visual bronchial occluder according to claim 1, wherein the surfaces of the miniature camera head (4) and the LED light source (5) are coated with a hydrophobic and oleophobic coating.

4. A visual bronchial occluder according to claim 1, wherein the visual component (3) is arranged on the opposite side of the curved side of the front part of the catheter body (1) towards the catheter head (17), the forward view of the micro-camera (4) is the axial direction of the catheter body (1), and the positions of the catheter head (17) and the cuff (2), the advancing direction of the catheter and the conditions of the pulmonary trachea can be observed in the visual range of the micro-camera (4).

5. A visual bronchial occluder according to claim 1, wherein the length of the cuff (2) is 10-12 mm, and the distance between the front end of the cuff and the orifice of the catheter head is less than or equal to 5 mm.

6. A visual bronchial occluder according to claim 5, wherein the ring pitch after inflation of said cuff is 5mm or less.

7. The visual bronchial occluder of claim 1, wherein the catheter body is cylindrical, the outer diameter is 3-4mm, and distance marks are arranged on the outer surface of the catheter body; the visual element has a radial length of no more than 2.5 mm.

8. Visual bronchial occluder according to claim 1, wherein the union joint (7) is provided with a connection (8) to a breathing circuit, a connection (19) to a tracheal tube and a capped insert (10), the capped insert (10) being provided with the working hole and a tube fixation (18).

9. The visual bronchial occluder of claim 8, wherein the interface (19) for connecting an endotracheal tube is tapered and has an outer diameter of 14-16 mm, and the interface (19) for connecting an endotracheal tube can receive the tube head (17) when the tube body (1) is retracted.

10. The visual bronchial occluder of claim 1, wherein the rear half of the catheter body (1) is provided with stripes slightly protruding from the outer surface of the catheter body (1) along the axial direction of the catheter body (1).