A lung tissue isolator

Abstract

The application relates to a lung tissue isolator, belonging to the technical field of medical devices, which comprises a first chest wall outer ring body, a first chest wall inner ring body and a mediastinal ring body, a first isolation film is arranged between the first chest wall outer ring body and the first chest wall inner ring body, the first isolation film is surrounded to form a first isolation cavity, a second isolation film is arranged between the first chest wall inner ring body and the mediastinal ring body, the second isolation film is surrounded to form a second isolation cavity, a support is arranged in the second isolation film, the support is used for supporting the second isolation film, and the first isolation cavity and the second isolation cavity are communicated to form a viewing channel. The second isolation film is used together with the support to isolate lung tissue, prevent lung tissue from expanding over the isolator into an upper cardiac surgery area along with respiration, and provide a good surgery view for thoracoscopy or chest wall lateral intercostal incision cardiac surgery while maintaining double lung ventilation.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a lung tissue insulator. Background Technology

[0002] With the development of cardiac surgery, thoracoscopic or lateral intercostal incision cardiac surgery has become increasingly common. In existing thoracoscopic or lateral intercostal incision cardiac surgery, single-lung ventilation (i.e., collapse of the surgical lobe) is usually required to obtain a clear surgical field.

[0003] However, one-lung ventilation can easily lead to hypoxemia and oxygen deficiency in vital organs (heart, brain, etc.), increasing surgical risks and postoperative complications. Cardiac surgery patients often have poor cardiopulmonary function, making them more susceptible to hypoxemia during one-lung ventilation, and some may even be unable to tolerate it. To avoid persistent and intolerable hypoxemia, intermittent double-lung ventilation is usually required during surgery. However, the movement of the ventilated lung tissue can obstruct the surgical field, affecting the surgical process and even endangering the patient's life during the operation. Furthermore, for some patients with pre-existing cardiopulmonary insufficiency, their inability to tolerate one-lung ventilation forces them to opt for the more invasive and slower-recovering traditional median sternotomy.

[0004] Therefore, performing surgery on these patients presents a dilemma: how to provide a clear surgical field while ensuring sufficient oxygen supply to protect the patient's life, reduce postoperative complications, and accelerate recovery. Summary of the Invention

[0005] This application provides a lung tissue insulator to solve the technical problem in related technologies that it is impossible to maintain a clear surgical field while maintaining continuous bilateral ventilation during surgery.

[0006] A lung tissue barrier is provided, comprising: a first lateral chest wall ring, a first medial chest wall ring, and a mediastinal ring; a first isolation membrane is provided between the first lateral chest wall ring and the first medial chest wall ring, forming a first isolation cavity; a second isolation membrane is provided between the first medial chest wall ring and the mediastinal ring, forming a second isolation cavity; a support member is provided within the second isolation membrane for supporting the second isolation membrane; and the first isolation cavity and the second isolation cavity communicate to form an access channel.

[0007] In some embodiments, the support includes an elastic support mesh, and the second isolation membrane is configured as a double-layer membrane structure, with the elastic support mesh disposed in the middle of the double-layer membrane structure.

[0008] In some embodiments, the support includes a supporting water pipe, and the second isolation membrane is configured as a double-layer membrane structure, with the supporting water pipe arranged in a spiral coil in the middle of the double-layer membrane structure.

[0009] In some embodiments, the first lateral chest wall ring, the first medial chest wall ring, and the mediastinal ring are all configured as solid ring structures.

[0010] In some embodiments, the first lateral chest wall ring, the first medial chest wall ring, and the mediastinal ring are all configured as hollow ring structures.

[0011] In some embodiments, a portion of the first lateral chest wall ring, the first medial chest wall ring, and the mediastinal ring are solid, while the remaining portions are hollow.

[0012] In some embodiments, an exhaust port is provided inside the longitudinal diaphragm ring and in the hollow structural portion of the ring facing the second isolation cavity. A first air inlet pipe is connected to the hollow structural portion of the longitudinal diaphragm ring and extends from the side wall of the viewing channel.

[0013] In some embodiments, a first water inlet pipe or a second air inlet pipe is connected to the longitudinal diaphragm side ring and located in its hollow structural portion, the first water inlet pipe or the second air inlet pipe extending from the side wall of the viewing channel.

[0014] In some embodiments, a third air inlet pipe or a second water inlet pipe is connected to the inner ring of the first chest wall, located at its hollow structural portion, and the third air inlet pipe or the second water inlet pipe extends from the side wall of the viewing channel.

[0015] In some embodiments, a lower lever is hinged to the inner side of the first inner chest wall ring, the bottom end of the lower lever is in movable contact with the inner side of the mediastinal ring, the top end of the lower lever extends into the first isolation cavity, an upper lifting rod is provided in the first isolation cavity, a roller is provided on the upper lifting rod, and the roller is in rolling contact with the top end of the lower lever.

[0016] The beneficial effects of the technical solution provided in this application include: This application provides a lung tissue insulator, which is inserted into the patient's body through a lateral intercostal incision in the chest wall. Specifically, a first lateral chest wall ring and a first medial chest wall ring are respectively located on the inner and outer sides of the chest wall tissue side incision site, serving a fixing function to prevent displacement of the insulator. The mediastinal side ring is located on the inner side of the chest wall tissue and close to the heart. A first isolation membrane is used to isolate the chest wall tissue, and a second isolation membrane, together with a support member, is used to isolate the lung tissue, preventing the lung tissue from expanding beyond the insulator during respiration and entering the cardiac surgical area above. This ensures that the lung tissue cannot cross the insulator and enter the cardiac surgical area above when it expands during respiration, thereby maintaining surgical visibility. Maintaining bilateral ventilation in the field of vision, the access channel formed by the connection between the first and second isolation cavities provides an excellent surgical field of vision for the thoracoscopic examination. Ultimately, this not only provides a good surgical field of vision for thoracoscopic or lateral intercostal incision cardiac surgery while maintaining bilateral ventilation, avoiding the risk of hypoxemia caused by intraoperative one-lung ventilation, and the risk of forced bilateral ventilation interfering with the surgical process when oxygenation cannot be maintained, but also provides the possibility of performing thoracoscopic or lateral intercostal incision surgery on patients with impaired cardiopulmonary function who cannot tolerate one-lung ventilation, avoiding greater surgical trauma, reducing postoperative complications, and accelerating patient recovery. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This application provides an overall structural schematic diagram; Figure 2 This application provides an overall sectional structural schematic diagram; Figure 3 This is a schematic diagram of the support member provided in Embodiment 1 of this application; Figure 4 A schematic diagram provided for this application to illustrate the lower lever and the upper lifting rod; Figure 5 This is a schematic diagram provided for this application to illustrate the rotational state of the lower lever and the upper lifting rod.

[0019] Figure 6 This is a schematic diagram of the support member provided in Embodiment 2 of this application; Figure 7 This is a cross-sectional schematic diagram provided for illustrating the support member in Embodiment 2 of this application; Figure 8 This is a schematic diagram provided for embodiment 3 of this application, illustrating the exhaust port and the first intake pipe; Figure 9 This is a schematic diagram illustrating the third air intake pipe provided in embodiments 4 and 6 of this application; Figure 10 This is a schematic diagram illustrating the second water inlet pipe provided in embodiments 4 and 6 of this application; Figure 11 These are schematic diagrams provided in embodiments 4 and 6 of this application to illustrate the rotation state of the longitudinal diaphragm ring. Figure 12 This is a schematic diagram illustrating the first water inlet pipe provided in Embodiment 5 of this application; Figure 13 This is a schematic diagram illustrating the second air intake pipe provided in Embodiment 5 of this application; Figure 14 This is a schematic diagram provided for embodiment 7 of this application, illustrating the exhaust port and the first intake pipe; Figure 15 These are schematic diagrams provided for embodiments 8 and 10 of this application, illustrating the third air intake pipe. Figure 16 This is a schematic diagram illustrating the second water inlet pipe provided in embodiments 8 and 10 of this application; Figure 17 This is a schematic diagram illustrating the first water inlet pipe provided in Embodiment 9 of this application; Figure 18 This is a schematic diagram illustrating the second air intake pipe provided in Embodiment 9 of this application; Figure 19 A schematic diagram provided for this application to illustrate the second lateral chest wall ring, the second medial chest wall ring, the third isolation membrane, and the fourth isolation membrane; In the diagram: 1. First lateral chest wall ring; 100. Chest wall tissue; 2. First medial chest wall ring; 200. Lung tissue; 20. Third air inlet tube; 21. Second water inlet tube; 22. Lower lever; 23. Upper lifting rod; 24. Roller; 25. Groove; 3. Mediastinal side ring; 300. Heart; 30. Exhaust port; 31. First air inlet tube; 32. First water inlet tube; 33. Second air inlet tube; 4. First isolation membrane; 40. First isolation cavity; 5. Second isolation membrane; 60. Second isolation cavity; 7. Support; 70. Connecting tube; 8. Access passage; 80. Thoracoscope; 90. Second lateral chest wall ring; 91. Second medial chest wall ring; 92. Third isolation membrane; 93. Fourth isolation membrane. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] This application provides a lung tissue barrier that solves the technical problem in related technologies of not being able to maintain a clear surgical field while maintaining continuous bilateral ventilation.

[0022] Example 1 Reference Figure 1-5 A lung tissue barrier includes a first lateral chest wall ring 1, a first medial chest wall ring 2, and a mediastinal ring 3. The diameter of the first lateral chest wall ring 1 is the same as the diameter of the first medial chest wall ring 2, and both are smaller than the diameter of the mediastinal ring 3. A first isolation membrane 4 is provided between the first lateral chest wall ring 1 and the first medial chest wall ring 2, forming a first isolation cavity 40. A second isolation membrane 5 is provided between the first medial chest wall ring 2 and the mediastinal ring 3, forming a second isolation cavity 60. A support member 7 is provided inside the second isolation membrane 5 to support the second isolation membrane 5, so that the second isolation membrane 5 fits against the lung tissue 200. The first isolation cavity 40 and the second isolation cavity 60 are connected to form a viewing channel 8 for direct visualization by the surgeon or passage of a thoracoscope 80.

[0023] In use, it is inserted into the patient's body through a side intercostal incision in the chest wall. Specifically, the first lateral chest wall ring 1 and the first medial chest wall ring 2 are respectively located on the inner and outer sides of the intercostal incision site on the chest wall tissue 100, which play a fixing role and prevent the insulator from shifting. The mediastinal side ring 3 is located inside the chest wall tissue 100 and close to the heart 300. The first isolation membrane 4 is used to isolate the chest wall tissue 100. The second isolation membrane 5 and the support 7 are used together to isolate the lung tissue 200, preventing the lung tissue 200 from expanding over the insulator and entering the surgical area of ​​the heart 300 above with the expansion of respiration, thereby maintaining ventilation of both lungs while maintaining the surgical field of vision. The viewing channel 8 formed by the connection of the first isolation cavity 40 and the second isolation cavity 60 provides a good surgical field of vision for the thoracoscope 80 to pass through.

[0024] The support member 7 includes an elastic support net, wherein the second isolation membrane 5 is configured as a double-layer membrane structure, and the elastic support net is located in the middle of the double-layer membrane structure. The purpose of the elastic support net being located inside the second isolation membrane 5 is to support the second isolation membrane 5. The second isolation membrane 5 wraps around the elastic support net to prevent the elastic support net from being uneven and causing damage to the chest wall tissue 100, lung tissue 200 and other human tissues. At the same time, it also functions to isolate the lung tissue 200, so that when the lung tissue 200 expands with respiration, it cannot cross the insulator and enter the surgical area of ​​the heart 300 above, thereby maintaining bilateral lung ventilation while maintaining the surgical field of vision.

[0025] The outer ring 1 of the first chest wall, the inner ring 2 of the first chest wall, and the mediastinal ring 3 are all set as solid ring structures, such as solid circular rings or solid elliptical rings. The solid ring structure can significantly enhance the overall structural rigidity and compressive strength of the ring, making it less prone to deformation when clamping the chest wall tissue 100, thereby providing a more uniform and stable clamping force to ensure that the device is firmly fixed and prevents displacement.

[0026] In this embodiment, a lower lever 22 is hinged to the inner side of the inner ring 2 of the first chest wall. The bottom end of the lower lever 22 is in movable contact with the inner side of the mediastinal ring 3, and the top end of the lower lever 22 extends into the first isolation cavity 40. An upper lifting rod 23 is provided in the first isolation cavity 40, and a roller 24 is provided on the upper lifting rod 23. The roller 24 is in rolling contact with the top end of the lower lever 22. Specifically, a groove 25 is provided on the side surface of the lower lever 22 facing the hinge fulcrum. The roller 24 is inserted into the groove 25, and the groove 25 is used to limit the roller 24 and prevent the roller 24 from slipping.

[0027] In use, the upper lifting rod 23 can be moved downwards to press the upper end of the lower lever 22 to rotate counterclockwise, thereby causing the lower end of the lower lever 22 to rotate counterclockwise. Then, the lower end of the lower lever 22 will cause one end of the mediastinal ring 3 to tilt upwards, thus changing the orientation of the mediastinal ring 3. This is to facilitate the adjustment of the orientation of the mediastinal ring 3 during the operation according to the specific situation, so that the orientation of the mediastinal ring 3 is not limited to a parallel state, thus providing a wider field of vision.

[0028] Example 2 Reference Figure 6-7In this embodiment, the difference from Embodiment 1 is that the support member 7 includes a supporting water pipe, and the second isolation membrane 5 is a double-layer membrane structure, with the supporting water pipe spirally arranged in the middle of the double-layer membrane structure. Similarly, when water is injected into the supporting water pipe, it supports the second isolation membrane 5. The second isolation membrane 5 wraps around the supporting water pipe to prevent it from being uneven and causing damage to the chest wall tissue 100, lung tissue 200, and other human tissues. It also isolates the lung tissue 200, preventing it from crossing the isolator and entering the surgical area of ​​the heart 300 above when the lung tissue 200 expands with respiration. Furthermore, when the support member 7 is a supporting water pipe, in this embodiment, the inner ring 2 of the first chest wall is a hollow, water-fillable structure, including but not limited to an airbag structure. Both the water pipe and the airbag are made of medical-grade TPU material. A connecting pipe 70 is connected to the inner ring 2 of the first chest wall, extending from the first isolation cavity 40 to connect to a water valve and water source. After water is injected into the water pipe, a skeletal structure with a certain strength can be formed. A TPU membrane is connected between these skeletal structures, effectively isolating 200 mm of lung tissue. Before release, the water tube coils and contracts into a barrel shape for easy insertion. A thoracoscope lens can be placed in the viewing channel 8 to clearly see the internal thoracic cavity. During release of the isolator, the water tube rotates in a spiral direction as it enters. After water is injected, the membrane structure naturally expands, providing its isolating function. After dewatering, it is spirally removed.

[0029] Example 3 Reference Figure 4-5 and Figure 8 In this embodiment, the difference from Embodiment 1 is that the first outer ring 1 of the first chest wall, the first inner ring 2 of the first chest wall, and the mediastinal ring 3 are all arranged in a hollow ring structure.

[0030] When the outer ring 1 of the first chest wall, the inner ring 2 of the first chest wall, and the mediastinal ring 3 are all configured as hollow ring structures, it is preferable to configure the hollow structure as an airbag. An exhaust port 30 is provided on the inner side of the mediastinal ring 3, at its hollow structural portion facing the second isolation cavity 60. A first air inlet pipe 31 is connected to the hollow structural portion of the mediastinal ring 3, extending from the side wall of the viewing channel 8. The first air inlet pipe 31 is used to connect to an external air source, allowing carbon dioxide to be filled into the mediastinal ring 3 through the first air inlet pipe 31, and then through the exhaust port 30, to reduce the risk of air embolism.

[0031] In this embodiment, a lower lever 22 is hinged to the inner side of the inner ring 2 of the first chest wall. The bottom end of the lower lever 22 is in movable contact with the inner side of the mediastinal ring 3, and the top end of the lower lever 22 extends into the first isolation cavity 40. An upper lifting rod 23 is provided in the first isolation cavity 40, and a roller 24 is provided on the upper lifting rod 23. The roller 24 is in rolling contact with the top end of the lower lever 22. Specifically, a groove 25 is provided on the side surface of the lower lever 22 facing the hinge fulcrum. The roller 24 is inserted into the groove 25, and the groove 25 is used to limit the roller 24 and prevent the roller 24 from slipping.

[0032] In use, the upper lifting rod 23 can be moved downwards to press the upper end of the lower lever 22 to rotate counterclockwise, thereby causing the lower end of the lower lever 22 to rotate counterclockwise. Then, the lower end of the lower lever 22 will cause one end of the mediastinal ring 3 to tilt upwards, thus changing the orientation of the mediastinal ring 3. This is to facilitate the adjustment of the orientation of the mediastinal ring 3 during the operation according to the specific situation, so that the orientation of the mediastinal ring 3 is not limited to a parallel state, thus providing a wider field of vision.

[0033] Example 4 Reference Figure 9-11 The difference between this embodiment and Embodiment 3 is that a third air inlet pipe 20 or a second water inlet pipe 21 is connected to the hollow part of the first inner chest wall ring 2. The third air inlet pipe 20 or the second water inlet pipe 21 extends into the side wall of the viewing channel 8. Air is injected into the first inner chest wall ring 2 through the third air inlet pipe 20 or water is injected into the first inner chest wall ring 2 through the second water inlet pipe 21 to change the shape of the first inner chest wall ring 2, thereby changing the orientation of the mediastinal ring 3.

[0034] Furthermore, when the inner ring 2 of the first chest wall is inflated with air or water, the volume of the hollow portion of the inner ring 2 expands outward. During this outward expansion, the second isolation membrane 5 and the elastic support net, which are connected to the hollow portion of the inner ring 2, are compressed and sink, thereby forcing a change in the orientation of the mediastinal ring 3. This is to facilitate adjustment of the orientation of the mediastinal ring 3 during surgery according to the specific operational situation, so that the orientation of the mediastinal ring 3 is not limited to a parallel state, thus providing a wider field of vision.

[0035] Example 5 Reference Figure 4-5 and Figure 12-13The difference between this embodiment and Embodiment 3 is that a first water inlet pipe 32 or a second air inlet pipe 33 is connected to the mediastinal side ring 3, specifically to its hollow structural portion. The first water inlet pipe 32 or the second air inlet pipe 33 extends from the side wall of the viewing channel 8. The first water inlet pipe 32 is used to connect to a water source, allowing water to be injected into the mediastinal side ring 3. This increases the counterweight of the mediastinal side ring 3, significantly enhancing its anchoring effect within the thoracic cavity through gravity. This effectively resists the disturbance forces generated by the respiratory movements of the lung tissue 200 and surgical procedures, preventing device displacement and ensuring the long-lasting and reliable isolation effect of the lung tissue 200. The second air inlet pipe 33 inflates the mediastinal side ring 3 with air, altering its shape to better conform to the mediastinum.

[0036] In this embodiment, a lower lever 22 is hinged to the inner side of the inner ring 2 of the first chest wall. The bottom end of the lower lever 22 is in movable contact with the inner side of the mediastinal ring 3, and the top end of the lower lever 22 extends into the first isolation cavity 40. An upper lifting rod 23 is provided in the first isolation cavity 40, and a roller 24 is provided on the upper lifting rod 23. The roller 24 is in rolling contact with the top end of the lower lever 22. Specifically, a groove 25 is provided on the side surface of the lower lever 22 facing the hinge fulcrum. The roller 24 is inserted into the groove 25, and the groove 25 is used to limit the roller 24 and prevent the roller 24 from slipping.

[0037] In use, the upper lifting rod 23 can be moved downwards to press the upper end of the lower lever 22 to rotate counterclockwise, thereby causing the lower end of the lower lever 22 to rotate counterclockwise. Then, the lower end of the lower lever 22 will cause one end of the mediastinal ring 3 to tilt upwards, thus changing the orientation of the mediastinal ring 3. This is to facilitate the adjustment of the orientation of the mediastinal ring 3 during the operation according to the specific situation, so that the orientation of the mediastinal ring 3 is not limited to a parallel state, thus providing a wider field of vision.

[0038] Example 6 Reference Figure 9-11 The difference between this embodiment and Embodiment 5 is that a third air inlet pipe 20 or a second water inlet pipe 21 is connected to the hollow part of the first inner chest wall ring 2. The third air inlet pipe 20 or the second water inlet pipe 21 extends into the side wall of the viewing channel 8. Air is injected into the first inner chest wall ring 2 through the third air inlet pipe 20 or water is injected into the first inner chest wall ring 2 through the second water inlet pipe 21, thereby changing the shape of the first inner chest wall ring 2 and thus changing the orientation of the mediastinal ring 3.

[0039] Furthermore, when the inner ring 2 of the first chest wall is inflated with air or water, the volume of the hollow portion of the inner ring 2 expands outward. During this outward expansion, the second isolation membrane 5 and the elastic support net, which are connected to the hollow portion of the inner ring 2, are compressed and sink, thereby forcing a change in the orientation of the mediastinal ring 3. This is to facilitate adjustment of the orientation of the mediastinal ring 3 during surgery according to the specific operational situation, so that the orientation of the mediastinal ring 3 is not limited to a parallel state, thus providing a wider field of vision.

[0040] Example 7 Reference Figure 4-5 and Figure 14 The difference between this embodiment and Embodiment 1 is that a portion of the first outer chest wall ring 1, the first inner chest wall ring 2, and the mediastinal side ring 3 are solid, while the remaining portions are hollow.

[0041] When the outer ring 1 of the first chest wall, the inner ring 2 of the first chest wall, and a portion of the mediastinal ring 3 are solid, while the remaining portions are hollow, an exhaust port 30 is provided on the inner side of the mediastinal ring 3, specifically at its hollow section facing the second isolation cavity 60. A first air inlet pipe 31 is connected to the hollow section of the mediastinal ring 3, extending from the side wall of the viewing channel 8. The first air inlet pipe 31 is used to connect to an external air source, allowing carbon dioxide to be introduced into the mediastinal ring 3 through the first air inlet pipe 31, and then through the exhaust port 30, thereby reducing the risk of air embolism.

[0042] In this embodiment, a lower lever 22 is hinged to the inner side of the inner ring 2 of the first chest wall. The bottom end of the lower lever 22 is in movable contact with the inner side of the mediastinal ring 3, and the top end of the lower lever 22 extends into the first isolation cavity 40. An upper lifting rod 23 is provided in the first isolation cavity 40, and a roller 24 is provided on the upper lifting rod 23. The roller 24 is in rolling contact with the top end of the lower lever 22. Specifically, a groove 25 is provided on the side surface of the lower lever 22 facing the hinge fulcrum. The roller 24 is inserted into the groove 25, and the groove 25 is used to limit the roller 24 and prevent the roller 24 from slipping.

[0043] In use, the upper lifting rod 23 can be moved downwards to press the upper end of the lower lever 22 to rotate counterclockwise, thereby causing the lower end of the lower lever 22 to rotate counterclockwise. Then, the lower end of the lower lever 22 will cause one end of the mediastinal ring 3 to tilt upwards, thus changing the orientation of the mediastinal ring 3. This is to facilitate the adjustment of the orientation of the mediastinal ring 3 during the operation according to the specific situation, so that the orientation of the mediastinal ring 3 is not limited to a parallel state, thus providing a wider field of vision.

[0044] Example 8 Reference Figure 15-16 The difference between this embodiment and Embodiment 7 is that a third air inlet pipe 20 or a second water inlet pipe 21 is connected to the hollow part of the first inner chest wall ring 2. The third air inlet pipe 20 or the second water inlet pipe 21 extends into the side wall of the viewing channel 8. Air is injected into the first inner chest wall ring 2 through the third air inlet pipe 20 or water is injected into the first inner chest wall ring 2 through the second water inlet pipe 21 to change the shape of the first inner chest wall ring 2, thereby changing the orientation of the mediastinal ring 3.

[0045] Furthermore, when the inner ring 2 of the first chest wall is inflated with air or water, the volume of the hollow portion of the inner ring 2 expands outward. During this outward expansion, the second isolation membrane 5 and the elastic support net, which are connected to the hollow portion of the inner ring 2, are compressed and sink, thereby forcing a change in the orientation of the mediastinal ring 3. This is to facilitate adjustment of the orientation of the mediastinal ring 3 during surgery according to the specific operational situation, so that the orientation of the mediastinal ring 3 is not limited to a parallel state, thus providing a wider field of vision.

[0046] Example 9 Reference Figure 4-5 and Figure 17-18 The difference between this embodiment and Embodiment 7 is that a first water inlet pipe 32 or a second air inlet pipe 33 is connected to the mediastinal side ring 3, specifically to its hollow structural portion. The first water inlet pipe 32 or the second air inlet pipe 33 extends from the side wall of the viewing channel 8. The first water inlet pipe 32 is used to connect to a water source, allowing water to be injected into the mediastinal side ring 3. This increases the counterweight of the mediastinal side ring 3, significantly enhancing its anchoring effect within the thoracic cavity through gravity. This effectively resists the disturbance forces generated by the respiratory movements of the lung tissue 200 and surgical procedures, preventing device displacement and ensuring the long-lasting and reliable isolation effect of the lung tissue 200. The second air inlet pipe 33 inflates the mediastinal side ring 3 with air, altering its shape to better conform to the mediastinum.

[0047] In this embodiment, a lower lever 22 is hinged to the inner side of the inner ring 2 of the first chest wall. The bottom end of the lower lever 22 is in movable contact with the inner side of the mediastinal ring 3, and the top end of the lower lever 22 extends into the first isolation cavity 40. An upper lifting rod 23 is provided in the first isolation cavity 40, and a roller 24 is provided on the upper lifting rod 23. The roller 24 is in rolling contact with the top end of the lower lever 22. Specifically, a groove 25 is provided on the side surface of the lower lever 22 facing the hinge fulcrum. The roller 24 is inserted into the groove 25, and the groove 25 is used to limit the roller 24 and prevent the roller 24 from slipping.

[0048] In use, the upper lifting rod 23 can be moved downwards to press the upper end of the lower lever 22 to rotate counterclockwise, thereby causing the lower end of the lower lever 22 to rotate counterclockwise. Then, the lower end of the lower lever 22 will cause one end of the mediastinal ring 3 to tilt upwards, thus changing the orientation of the mediastinal ring 3. This is to facilitate the adjustment of the orientation of the mediastinal ring 3 during the operation according to the specific situation, so that the orientation of the mediastinal ring 3 is not limited to a parallel state, thus providing a wider field of vision.

[0049] Example 10 Reference Figure 15-16 The difference between this embodiment and Embodiment 9 is that a third air inlet pipe 20 or a second water inlet pipe 21 is connected to the hollow part of the first inner chest wall ring 2. Air is injected into the first inner chest wall ring 2 through the third air inlet pipe 20, or water is injected into the first inner chest wall ring 2 through the second water inlet pipe 21, thereby changing the shape of the first inner chest wall ring 2 and consequently changing the orientation of the mediastinal ring 3.

[0050] Furthermore, when the inner ring 2 of the first chest wall is inflated with air or water, the volume of the hollow portion of the inner ring 2 expands outward. During this outward expansion, the second isolation membrane 5 and the elastic support net, which are connected to the hollow portion of the inner ring 2, are compressed and sink, thereby forcing a change in the orientation of the mediastinal ring 3. This is to facilitate adjustment of the orientation of the mediastinal ring 3 during surgery according to the specific operational situation, so that the orientation of the mediastinal ring 3 is not limited to a parallel state, thus providing a wider field of vision.

[0051] Example 11 Reference Figure 19 In this embodiment, based on the above embodiments, it further includes a second lateral chest wall ring 90 and a second medial chest wall ring 91. The second lateral chest wall ring 90 and the second medial chest wall ring 91 are connected by a third isolation membrane 92, and the second medial chest wall ring 91 is connected to the second isolation membrane 5 by a fourth isolation membrane 93. The second lateral chest wall ring 90 is a solid ring structure or a hollow ring structure, the second medial chest wall ring 91 is a solid ring structure or a hollow ring structure, and the third isolation membrane 92 and the fourth isolation membrane 93 are both single-layer membrane structures. In use, it can be used with a thoracoscope 80 head, and the thoracoscope 80 head specifically enters the inner chest cavity through the viewing channel 8 composed of the second lateral chest wall ring 90, the second medial chest wall ring 91, the third isolation membrane 92, and the fourth isolation membrane 93. This solution can provide a wider range of applications and meet the possibilities of other surgical conditions.

[0052] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0053] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0054] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A lung tissue barrier, characterized in that, It includes: The first chest wall outer ring (1), the first chest wall inner ring (2), and the mediastinal side ring (3) are provided. A first isolation membrane (4) is provided between the first chest wall outer ring (1) and the first chest wall inner ring (2). The first isolation membrane (4) encloses and forms a first isolation cavity (40). A second isolation membrane (5) is provided between the first chest wall inner ring (2) and the mediastinal side ring (3). The second isolation membrane (5) encloses and forms a second isolation cavity (60). A support member (7) is provided inside the second isolation membrane (5). The support member (7) is used to support the second isolation membrane (5). The first isolation cavity (40) and the second isolation cavity (60) are connected to form an access channel (8).

2. The lung tissue barrier as described in claim 1, characterized in that: The support member (7) includes an elastic support mesh, and the second isolation membrane (5) is configured as a double-layer membrane structure, with the elastic support mesh disposed in the middle of the double-layer membrane structure.

3. A lung tissue barrier as described in claim 1, characterized in that: The support member (7) includes a supporting water pipe, and the second isolation membrane (5) is configured as a double membrane structure, with the supporting water pipe arranged in a spiral coil in the middle of the double membrane structure.

4. A lung tissue barrier as described in claim 1, characterized in that: The first chest wall outer ring (1), the first chest wall inner ring (2), and the mediastinal side ring (3) are all set in a solid ring structure.

5. A lung tissue barrier as described in claim 1, characterized in that: The first chest wall outer ring (1), the first chest wall inner ring (2), and the mediastinal side ring (3) are all arranged in a hollow ring structure.

6. A lung tissue barrier as described in claim 1, characterized in that: A portion of the first chest wall outer ring (1), the first chest wall inner ring (2), and the mediastinal ring (3) are solid, while the remaining portion are hollow.

7. A lung tissue barrier as described in claim 5 or 6, characterized in that: The inner side of the longitudinal diaphragm ring (3) and the hollow part of it facing the second isolation cavity (60) are provided with an exhaust hole (30). The hollow part of the longitudinal diaphragm ring (3) is connected to a first air inlet pipe (31), which is inserted from the side wall of the viewing channel (8).

8. A lung tissue barrier as described in claim 5 or 6, characterized in that: The longitudinal diaphragm side ring (3) is connected to a first water inlet pipe (32) or a second air inlet pipe (33) at its hollow structure part, and the first water inlet pipe (32) or the second air inlet pipe (33) extends from the side wall of the viewing channel (8).

9. A lung tissue barrier as described in claim 5 or 6, characterized in that: On the inner side ring (2) of the first chest wall, a third air inlet pipe (20) or a second water inlet pipe (21) is connected to the hollow part of the ring. The third air inlet pipe (20) or the second water inlet pipe (21) extends from the side wall of the viewing channel (8).

10. A lung tissue barrier as described in claim 1, characterized in that: A lower lever (22) is hinged to the inner side of the first chest wall inner ring (2). The bottom end of the lower lever (22) is in movable contact with the inner side of the mediastinal side ring (3). The top end of the lower lever (22) extends into the first isolation cavity (40). An upper lifting rod (23) is provided in the first isolation cavity (40). A roller (24) is provided on the upper lifting rod (23). The roller (24) is in rolling contact with the top end of the lower lever (22).

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