Lung segment bronchus plugging assembly

Abstract

The utility model discloses a pulmonary segment bronchus plugging assembly, which relates to the technical field of medical equipment and comprises a tube body and a cuff embedded in the outer wall of the far end of the tube body, the cuff is communicated with an opening of the far end of the tube body, a plurality of first developing parts are arranged on the inner wall of the cuff and are uniformly arranged at intervals in an annular structure, and a plurality of second developing parts are arranged on the outer wall of the cuff. The first developing part displays the inflation expansion deformation quantity of the cuff under CT scanning. The tube body is used for assisting in observing and guiding the cuff to selectively enter a target lung segment cavity opening, then the near-end connector of the tube body is inflated, the cuff is expanded after being inflated, the size of the cuff is increased, under CT scanning, the images that the first developing parts move away from one another along with the expanded and deformed cuff are displayed, medical staff know the expanded and deformed amount of the cuff in real time, and the medical staff can know the expanded and deformed amount of the cuff in real time. The outer wall of the cuff is tightly attached to the inner wall of the target lung segment tissue, the boundary of the inflated lung tissue and the non-inflated lung tissue is an inter-segment plane, the lesion position can be diagnosed conveniently, and meanwhile the situation that the target lung segment tissue is damaged easily due to excessive expansion of the cuff is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a segmental bronchial blocking component. Background Art

[0002] Thoracoscopic segmentectomy is one of the important treatments for early lung cancer. The goal of precise segmentectomy is to preserve healthy lung tissue to the greatest extent while completely removing the lesion. In clinical surgery, the cuff is inflated to block the bronchus on one side, so that the blocked lung is not ventilated and the contralateral lung is ventilated. After the blocked lung collapses, the chest cavity on that side has surgical space, which is convenient for medical staff to perform surgical operations. The contralateral lung is ventilated to maintain the patient's whole body oxygen supply and gas exchange.

[0003] At present, the cuff needs to rely on the guidance of fiber bronchoscope to observe the target lung segment, so as to determine the insertion position and blocking position of the cuff installed at the front end of the bronchial occluder. The existing clinical methods for identifying the target lung segment are: modified inflation and collapse method, electromagnetic navigation bronchoscope intraoperative positioning, bronchoscope combined with balloon catheter for lung segment staining positioning, three-dimensional CT bronchovascular imaging (3D-CTBA) navigation, and indocyanine green fluorescence imaging to locate the lung segment anatomy. Regardless of the method used, the cuff expansion and occlusion of the target lung segment cavity orifice adopts an empirical expansion operation method. Usually, in order to ensure the sealing, high pressure is filled to ensure that the outer wall of the cuff is tightly attached to the inner wall of the target lung segment tissue, but excessive expansion of the cuff can easily cause damage to the target lung segment tissue. Therefore, a segmental bronchial occlusion component is designed and produced here to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a segmental bronchus blocking component to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a segmental bronchial occlusion component, comprising: a tube body and a cuff embedded in the outer wall of the distal end of the tube body, the cuff is connected to the distal opening of the tube body, the inner wall of the cuff is provided with a plurality of developing parts 1, the plurality of developing parts 1 are evenly spaced and arranged in a ring structure, and the developing parts 1 display the inflation and expansion deformation of the cuff under CT scanning.

[0006] In a further embodiment, a second developing member is provided on the inner wall of one end of the cuff away from the tube body, and the second developing member displays the specific position where the distal end of the cuff extends into the cavity of the target lung segment under CT scanning.

[0007] In a further embodiment, a second developing member is also provided on the inner wall of one end of the cuff close to the tube body, and the second developing member shows whether the cuff is completely extended into the cavity of the target lung segment under CT scanning.

[0008] In a further embodiment, the developing component 1 and the developing component 2 are both made of metal.

[0009] In a further embodiment, the cuff is an ultra-thin polyurethane airbag.

[0010] In a further embodiment, an inner tube is provided inside the tube body, a flow gap is left between the outer wall of the inner tube and the inner wall of the tube body, and an expansion portion is connected to the inner tube after passing through the cuff, and the expansion portion is sealed with the cuff insertion position, and a through-plug is embedded in the end of the expansion portion, the through-plug end is a closed structure, and an opening is opened on the side of the through-plug end.

[0011] In a further embodiment, the axial direction of the opening is inclined toward an end away from the closed structure.

[0012] In a further embodiment, a plurality of expansion blocks are provided between the inner wall of the tube body and the outer wall of the inner tube, and the inner tube and the tube body are coaxially distributed.

[0013] In a further embodiment, a plurality of expansion blocks are distributed in the flow gap in a spiral structure.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model is a pulmonary segment bronchial blocking component, which uses a tube body to assist in observation and guide the cuff to selectively enter the target pulmonary segment cavity, and then the proximal interface of the tube body is inflated. The cuff is expanded after inflation and its volume becomes larger. During the process of the cuff inflation volume expansion, under CT scanning, multiple developing parts are displayed, and images of the cuff moving away from each other following the expansion deformation are displayed. Medical staff can obtain the expansion deformation of the cuff in real time to ensure that the outer wall of the cuff is tightly attached to the inner wall of the target pulmonary segment tissue, forming the boundary between the inflated and uninflated lung tissues, that is, the inter-segment plane, so as to facilitate the diagnosis of the lesion location and avoid excessive expansion of the cuff, which may easily lead to damage to the target pulmonary segment tissue. The utility model is simple and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0017] Figure 2 It is a partial structural schematic diagram of an embodiment of the utility model;

[0018] Figure 3 It is a partial cross-sectional view of the assembly of the cuff and the tube body of the embodiment of the utility model;

[0019] Figure 4 It is a schematic diagram of the inflation and expansion of the cuff according to an embodiment of the utility model.

[0020] In the figure: 1, tube body; 11, expansion block; 2, cuff; 21, developing piece 1; 22, developing piece 2; 3, inner tube; 4, plug; 41, opening. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Examples, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment provides a segmental bronchial occlusion assembly, including: a tube body 1 and a cuff 2 embedded in the outer wall of the distal end of the tube body 1, the cuff 2 is connected to the distal opening 41 of the tube body 1, and the inner wall of the cuff 2 is provided with a plurality of developing parts 21, and the plurality of developing parts 21 are evenly spaced in a ring structure, and the developing parts 21 display the inflation and expansion deformation of the cuff 2 under CT scanning. The tube body 1 is used to assist in observation and guide the cuff 2 to selectively enter the target lung segment cavity, and then the proximal interface of the tube body 1 is inflated, and the cuff 2 is inflated and expanded, and the volume increases. In the process of the inflation and expansion of the volume of the cuff 2, under CT scanning, an image of the plurality of developing parts 21 moving away from each other following the expansion and deformation of the cuff 2 is displayed, and the medical staff can know the expansion deformation of the cuff 2 in real time.

[0023] The actual process of blocking the lung segment cavity is: it is necessary to set a visual component at the far end of the tube body 1, including a micro camera and an LED light source, the data line and / or power line of the micro camera and the LED light source are set in the tube wall of the tube body 1, and the other end of the data line and / or power line of the micro camera and the LED light source is connected to the data interface at the tail of the tube body 1. With the help of the real-time picture taken by the micro camera, the cuff 2 is accurately guided to the target lung segment. Subsequently, the cuff 2 is inflated. During the process of the inflation volume of the cuff 2 expanding, under the CT scan, multiple developing parts 21 are displayed to follow the expansion and deformation of the cuff 2 and move away from each other. The medical staff knows the position of the outer wall of the cuff 2 after expansion in real time. The medical staff refers to the developing image. When the expanded outer wall of the cuff 2 is against the tissue wall of the cavity of the target lung segment, it continues to expand, and the outer wall of the cuff 2 expands the target lung segment assembly wall to produce deformation, and then immediately stops inflating and expanding the cuff 2. At this time, the outer wall of the cuff 2 can fit tightly against the inner wall of the target lung segment tissue, forming a boundary between the inflated and uninflated lung tissues, namely the intersegmental plane, so that the segmental bronchial catheter can achieve selective segmental bronchial controlled ventilation to facilitate diagnosis of the lesion location, while avoiding excessive expansion of the cuff 2 that may cause damage to the target lung segment tissue.

[0024] Furthermore, a second developing member 22 is provided on the inner wall of the end of the cuff 2 away from the tube body 1. The advantage of providing the second developing member 22 at this position is that the second developing member 22 shows the specific position of the distal end of the cuff 2 extending into the target lung segment cavity under CT scanning. The medical staff can know whether the distal end of the cuff 2 extends into the target lung segment cavity according to the position developed by the second developing member 22, so as to avoid the inability to form an inter-segment plane after the expansion of the cuff 2. Further, a second developing member 22 is also provided on the inner wall of the end of the cuff 2 close to the tube body 1. The second developing member 22 shows whether the cuff 2 is completely extended into the target lung segment cavity under CT scanning, which can not only assist the medical staff in determining whether the entire cuff 2 is completely placed in the cavity, but also avoid the insertion depth being too deep, resulting in fewer electrosurgical marks and failure to completely remove the target lung segment.

[0025] It should be noted that the developing member 1 21 and the developing member 2 22 are both made of metal, which can be stainless steel, silver or gold. If silver or gold is used, it will be directly discarded as medical waste after use, resulting in a waste of resources. The cuff 2 can be dismantled to separate the silver or gold developing member 1 21 and the developing member 2 22 from the cuff 2 and then be recycled.

[0026] In addition, the cuff 2 is a polyurethane ultra-thin airbag with a thin wall of only 7 μm, which is 1 / 7 of that of an ordinary PVC airbag. Even when the airbag is underfilled, wrinkles are not likely to occur.

[0027] Furthermore, an inner tube 3 is provided inside the tube body 1, and a flow gap is left between the outer wall of the inner tube 3 and the inner wall of the tube body 1. The diameter of the inner tube 3 is smaller than that of the tube body 1, and the flow gap serves as a flow chamber for the cuff 2 to inflate or inhale air.

[0028] After the inner tube 3 passes through the cuff 2, an expansion part is connected, and the expansion part is sealed and connected to the insertion position of the cuff 2. The end of the expansion part is embedded with a penetration plug 4, and the end of the penetration plug 4 is a closed structure, and an opening 41 is opened on the side of the end of the penetration plug 4. The inner tube 3 is connected to the penetration plug 4, which is convenient for guiding the cuff 2 into the target lung segment cavity. In addition, after the cuff 2 blocks the opening of the target lung segment cavity, a boundary between inflated and uninflated lung tissue is formed, and the inner tube 3 is used to guide air and discharge it into the closed side of the target lung segment through the opening 41 of the penetration plug 4. The closed side is expanded and enlarged, and then the boundary is marked with an electric hook, and then the inner tube 3 is used to evacuate air outward, so that the expanded lung tissue collapses again, which is convenient for surgical operation.

[0029] The axial direction of the opening 41 is tilted toward the end away from the closed structure to prevent the opening 41 from being blocked by tissue mucosa during the guiding process of the penetration plug 4.

[0030] In addition, a plurality of expansion blocks 11 are provided between the inner wall of the tube body 1 and the outer wall of the inner tube 3. The inner tube 3 is coaxially distributed with the tube body 1. The tube body 1 is embedded outside the inner tube 3 by using the plurality of expansion blocks 11, so that the seal is not compressed and the inflation and degassing of the cuff 2 are not affected. The plurality of expansion blocks 11 are distributed in the flow gap in a spiral structure to form a three-dimensional support structure, so that the tube body 1 and the inner tube 3 are coaxially distributed as much as possible, thus ensuring that the flow gap is not affected.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A segmental bronchial blocking component, characterized in that: include: A tube body (1) and a cuff (2) embedded in the outer wall of the distal end of the tube body (1); the cuff (2) is connected to an opening (41) at the distal end of the tube body (1); the inner wall of the cuff (2) is provided with a plurality of developing members (21); the plurality of developing members (21) are arranged in a ring structure at even intervals; the developing members (21) display the amount of deformation of the cuff (2) when it is inflated and expanded under CT scanning.

2. The segmental bronchial occlusion assembly according to claim 1, characterized in that: A second developing component (22) is provided on the inner wall of one end of the cuff (2) away from the tube body (1), and the second developing component (22) displays the specific position of the distal end of the cuff (2) extending into the cavity of the target lung segment under CT scanning.

3. The segmental bronchial occlusion assembly according to claim 2, characterized in that: The inner wall of one end of the cuff (2) close to the tube body (1) is also provided with a second developing component (22), and the second developing component (22) shows whether the cuff (2) is completely extended into the cavity of the target lung segment under CT scanning.

4. The segmental bronchial occlusion assembly according to claim 2, characterized in that: The developing component 1 (21) and the developing component 2 (22) are both made of metal.

5. The segmental bronchial occlusion assembly according to claim 1, characterized in that: The cuff (2) is an ultra-thin polyurethane air bag.

6. The segmental bronchial occlusion assembly according to claim 1, characterized in that: An inner tube (3) is arranged inside the tube body (1), and a flow gap is left between the outer wall of the inner tube (3) and the inner wall of the tube body (1); After the inner tube (3) passes through the cuff (2), an enlarged portion is connected thereto. The enlarged portion is sealed and connected to the insertion position of the cuff (2). A penetration plug (4) is embedded in the end of the enlarged portion. The end of the penetration plug (4) is a closed structure, and an opening (41) is provided on the side of the end of the penetration plug (4).

7. The segmental bronchial occlusion assembly according to claim 6, characterized in that: The axial direction of the opening (41) is inclined toward an end away from the closed structure.

8. The segmental bronchial occlusion assembly according to claim 5, characterized in that: A plurality of expansion blocks (11) are provided between the inner wall of the tube body (1) and the outer wall of the inner tube (3), and the inner tube (3) and the tube body (1) are coaxially distributed.

9. The segmental bronchial occlusion assembly according to claim 8, characterized in that: A plurality of expansion blocks (11) are distributed in the flow gap in a spiral structure.

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