Lung fibrous tissue removing device

Abstract

According to the lung fibrous tissue removing device, starting from the source, abnormal fibrous grids in a pleural cavity are safely and effectively broken, ablated or cut off in a physical or energy mode, all separated small rooms are broken through, and a plurality of independent areas are fused into a whole. Therefore, all effusion in the thoracic cavity can be thoroughly drained only through one-time puncture or a few times of puncture. The operation time can be remarkably shortened, the pain of a patient can be relieved, lung trauma and various complications caused by multiple times of puncture can be fundamentally avoided, the treatment effect and safety of pleural effusion, especially complex atrial effusion, are greatly improved, and important clinical value and social significance are achieved.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a device for removing pulmonary fibrosis. Background Technology

[0002] Pleural effusion, commonly known as "pulmonary edema," is a very common condition in respiratory medicine and thoracic surgery. It is not a disease in itself, but rather a pathological accumulation of fluid within the pleural cavity caused by various factors (such as pneumonia, tuberculous pleurisy, pleural metastasis of malignant tumors, and heart failure). When the effusion reaches a certain level, it can compress the lungs, causing symptoms such as chest tightness, shortness of breath, difficulty breathing, and even circulatory disorders, which can be life-threatening in severe cases. Therefore, timely and effective drainage of pleural effusion is crucial for relieving patient symptoms, controlling disease progression, and conducting diagnostic tests.

[0003] Currently, the routine methods for managing pleural effusion in clinical practice mainly include thoracentesis and closed pleural drainage. During the procedure, doctors typically use a lung aspiration needle (or thoracentesis needle) to percutaneously puncture the pleural cavity under ultrasound guidance to aspirate or drain the effusion. However, in actual clinical practice, especially when dealing with complex pleural effusions with a long course or caused by specific etiologies (such as empyema or tuberculous pleurisy), existing aspiration techniques have revealed significant limitations.

[0004] The core cause of this limitation lies in the pathological changes in the lungs and pleural cavity. When the pleural cavity is subjected to inflammation, infection, or tumor invasion, it triggers the body's repair mechanisms, leading to the exudation of large amounts of fibrinogen and its deposition on the surface of the visceral and parietal pleura. If these deposited fibrinogens are not absorbed and dissolved in time, they will gradually organize and thicken over time, forming tough fibrous tissue strands or septa. These newly formed fibrous tissues artificially divide and segment the originally intact and continuous pleural cavity (i.e., a potential, negative-pressure space) into multiple "grid" or "cell" structures of varying sizes and isolated from each other. Medically, this phenomenon is called "multilocular effusion" or "encapsulated effusion."

[0005] The formation of this fibrous, mesh-like structure significantly increases the difficulty of surgical fluid aspiration. This is specifically reflected in the following aspects:

[0006] First, it increases the number of punctures and surgical trauma. In traditional puncture aspiration, due to the presence of fibrous septa, a single needle can only drain fluid from its designated "grid." Even after the fluid in that cavity is drained, fluid remains in other independent areas encased in fibrous tissue, which cannot be drained through the existing puncture path. To remove fluid from all septa, doctors must repeatedly puncture each individual "grid" multiple times from multiple angles under repeated ultrasound or CT guidance. This not only significantly prolongs the procedure time and increases patient suffering, but more importantly, each puncture of the pleura and lung parenchyma represents a new trauma. Multiple punctures greatly increase the risk of complications such as pneumothorax, hemothorax, re-expansion pulmonary edema, intercostal vascular and nerve injury, and iatrogenic infection.

[0007] Secondly, it affects the accuracy of diagnosis and the thoroughness of treatment. Multilocular effusion often leads to poor or incomplete drainage. Residual fluid not only fails to relieve the patient's compressive symptoms but, due to its high protein and inflammatory cell content, becomes a breeding ground for bacteria, leading to persistent infection and even sepsis. Simultaneously, fluid encased in fibrous tissue cannot be adequately drained, restricting effective lung re-expansion. Over time, the fibrous plates covering the lung surface can restrict lung expansion, causing permanent lung function damage. From a diagnostic perspective, if only fluid is aspirated from one cavity, it may not fully reflect the pathological state of the entire pleural cavity, especially in cases of malignant effusion, potentially missing crucial tumor cells.

[0008] Therefore, there is an urgent need for a device to remove pulmonary fibrosis, which can, to some extent, solve the problems existing in the current technology. Summary of the Invention

[0009] The purpose of this application is to provide a pulmonary fibrosis removal device that, starting from the source, aims to safely and effectively break, ablate, or remove abnormal fibrous networks within the pleural cavity through physical or energy means, opening up the individual compartments and merging multiple independent areas into a single unit. This allows for complete drainage of all pleural effusions with only one or a few punctures. This not only significantly shortens the operation time and reduces patient suffering but also fundamentally avoids lung trauma and various complications caused by multiple punctures, thereby greatly improving the treatment efficacy and safety of pleural effusions, especially complex multilocular effusions, and has significant clinical value and social significance.

[0010] This application provides a pulmonary fibrosis removal device; comprising:

[0011] A base having a base and a plurality of guide portions having guide cavities; one end of the plurality of guide portions is spaced apart from the base, and the other end extends along a first direction;

[0012] A puncture assembly has a puncture portion for puncturing fibrous tissue, a first drive portion, and a first adjustment portion; the first drive portion is disposed at one end of the base opposite to the guide portion; the puncture portion is disposed on the other side of the guide portion opposite to the base; one end of the first adjustment portion is connected to the first drive portion and the other end passes through one of the guide portions and is connected to the puncture portion; the first drive portion can adjust the direction of the puncture portion through the first adjustment portion.

[0013] A hook assembly has a hooking part, a second driving part, and a second adjusting part; the second driving part is disposed at one end of the base away from the guide part; the hooking part is disposed at one end of the piercing part near the guide part; one end of the second adjusting part is connected to the second driving part and the other end passes through the other guide part and is connected to the hooking part; the second driving part can adjust the hooking part to be in an open or closed state through the second adjusting part.

[0014] In the above technical solution, the puncture portion has a tapered structure along the first direction, and a needle tip for piercing fibrous tissue is formed at the end opposite to the guide portion.

[0015] In the above technical solution, the first driving unit further includes:

[0016] Two mounting ears are provided on the side of the base away from the guide portion, and are spaced apart. The two mounting ears are a first mounting ear and a second mounting ear, and a winding space is formed between the first mounting ear and the second mounting ear.

[0017] A take-up roller, one end of which is fixed to the sidewall of the first mounting ear facing the second mounting ear, and the other end extending toward the second mounting ear and passing through the sidewall of the second mounting ear away from the first mounting ear; and

[0018] An adjusting wheel is disposed at the portion of the take-up roller that extends beyond the second mounting ear. The clockwise or counterclockwise rotation of the adjusting wheel can drive the take-up roller to rotate clockwise or counterclockwise.

[0019] In the above technical solution, the first adjustment unit further includes:

[0020] A flexible cannula, one end of which is connected to the guide portion, and the other end extending along the first direction and connected to the puncture portion; and

[0021] An adjusting rope has one end connected to the take-up roller and the other end passing through the guide portion and the flexible sleeve in sequence and connected to the puncture portion.

[0022] In the above technical solution, there are two of each of the first driving part and the first adjusting part, with the two first driving parts corresponding one-to-one with the two first adjusting parts, and the two first adjusting parts are arranged at intervals along the radial direction of the puncture part.

[0023] The rotation direction of the puncture head can be adjusted by the two first drive parts and the two first adjustment parts.

[0024] In the above technical solution, the second drive unit further includes an unfolding handwheel, which is formed on the side of the base away from the guide unit and is spaced apart from the first drive unit.

[0025] In the above technical solution, the second adjustment unit further includes:

[0026] An installation disc is disposed between the puncture portion and the flexible sleeve, and surrounds an installation cavity; the installation disc is provided with installation grooves spaced apart along the circumferential direction.

[0027] A lifting sleeve, which has a ring-shaped structure, is disposed in the mounting cavity; and

[0028] A threaded rod that extends along the first direction and is threadedly connected to the lifting sleeve;

[0029] A flexible rod, one end of which is connected to the guide portion and the other end of which is connected to the mounting plate; and

[0030] A traction rope has one end passing through the base and connected to the unfolding handwheel, and the other end passing through the guide, the flexible rod, and the mounting plate in sequence and connected to the threaded rod. The clockwise or counterclockwise rotation of the unfolding handwheel can drive the threaded rod to rotate clockwise or counterclockwise through the traction rope. The clockwise or counterclockwise rotation of the threaded rod can drive the lifting sleeve to move on the threaded rod in the first direction or in the opposite direction.

[0031] In the above technical solution, the hooking part further includes:

[0032] The device includes multiple hooks, each corresponding to one of the mounting slots. One end of each hook is rotatably connected to the sidewall forming the mounting slot, and the other end extends from the mounting slot out of the mounting plate.

[0033] The connecting rod has one end rotatably connected to the preset position of the hook, and the other end rotatably connected to the lifting sleeve; when the lifting sleeve moves on the threaded rod in the first direction or in the opposite direction, the multiple hooks can move closer to each other and retract into a closed state or move away from each other and open into an open state.

[0034] In the above technical solution, the guide part is further defined as a guide rod, and there are three guide rods, one of which is located at the center of the base, and the remaining two guide rods are respectively arranged on both sides of the guide rod located at the center along the radial direction of the base.

[0035] The guide rod located at the center is connected to the flexible rod, and the guide rods on both sides of the guide rod located at the center are connected to the flexible sleeve.

[0036] In the above technical solution, the substrate further includes:

[0037] The sleeve handle is fitted onto the outside of the three guide rods;

[0038] An annular plate is disposed on the side of the sleeve handle opposite to the base and is sleeved on the outside of the three guide rods; and

[0039] The outer sleeve is disposed on the side of the annular plate opposite to the sleeve handle, extends along the first direction, and is sleeved on the outside of the three guide rods.

[0040] Compared with the prior art, this application has the following beneficial effects:

[0041] This application provides a pulmonary fibrosis removal device; comprising:

[0042] A base having a base and a plurality of guide portions having guide cavities; one end of the plurality of guide portions is spaced apart from the base, and the other end extends along a first direction;

[0043] A puncture assembly has a puncture portion for puncturing fibrous tissue, a first drive portion, and a first adjustment portion; the first drive portion is disposed at one end of the base opposite to the guide portion; the puncture portion is disposed on the other side of the guide portion opposite to the base; one end of the first adjustment portion is connected to the first drive portion and the other end passes through one of the guide portions and is connected to the puncture portion; the first drive portion can adjust the direction of the puncture portion through the first adjustment portion.

[0044] A hook assembly has a hooking part, a second driving part, and a second adjusting part; the second driving part is disposed at one end of the base away from the guide part; the hooking part is disposed at one end of the piercing part near the guide part; one end of the second adjusting part is connected to the second driving part and the other end passes through the other guide part and is connected to the hooking part; the second driving part can adjust the hooking part to be in an open or closed state through the second adjusting part.

[0045] In summary, the pulmonary fibrosis removal device provided in this application, through the construction of a multi-channel guiding platform, the integration of a precisely controllable puncture steering system and an openable grasping system, and the combination of various extended structures and energy forms, forms a comprehensive solution from mechanical operation to energy assistance, from simple drainage to complex cleanup. Its core value lies in achieving integrated "opening-cleaning-drainage" of multilocular, loculated pleural effusion lesions through a single puncture approach, fundamentally avoiding the cumulative trauma caused by traditional multiple punctures, significantly reducing the risk of complications, and shortening the operation time. It is expected to become one of the standard tools for treating complex pleural effusions. The specific embodiments and extended solutions described above are only used to illustrate the technical concept of this application and are not intended to limit it; those skilled in the art should understand that these technical features can be combined, modified, or equivalently replaced without departing from the spirit and scope of this application, and all such modifications and substitutions should be covered within the protection scope of this application. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0047] Figure 1 A schematic diagram of the pulmonary fibrosis removal device provided in this application in its unused state;

[0048] Figure 2 for Figure 1 This is a magnified view of point A;

[0049] Figure 3 for Figure 2 This is a magnified view of point B;

[0050] Figure 4 A schematic diagram of the pulmonary fibrosis removal device provided in this application in its use state;

[0051] Figure 5 for Figure 4 This is a magnified view of point C;

[0052] Figure 6 for Figure 4 This is a magnified view of point D;

[0053] Figure 7 Another structural schematic diagram of the pulmonary fibrosis removal device provided in this application in its use state;

[0054] Figure 8 for Figure 7 This is a magnified view of point E;

[0055] Figure 9 A schematic diagram of the hidden cannula handle, annular plate, and outer cannula in the pulmonary fibrosis removal device provided in this application;

[0056] Figure 10 A schematic diagram of the hidden cannula handle, annular plate, and outer cannula in the pulmonary fibrosis removal device provided in this application;

[0057] Figure 11 A schematic diagram of the puncture component and the hooking component in the open state of the pulmonary fibrosis removal device provided in this application;

[0058] Figure 12 for Figure 11 Cross-sectional view in the middle;

[0059] Figure 13 A schematic diagram of the puncture component and the hooking component in the closed state of the pulmonary fibrosis removal device provided in this application.

[0060] Reference numerals: 1-Base; 101-Base; 102-Guide; 103-First direction; 104-Guide rod; 105-Sleeve handle; 106-Annular plate; 107-Outer sleeve;

[0061] 201-Puncture section; 202-First drive section; 203-First adjustment section; 204-Needle tip; 205-Mounting ear; 206-Take-up space; 207-Take-up roller; 208-Adjusting wheel; 209-Flexible sleeve; 210-Adjusting rope; 211-Gradual reduction structure;

[0062] 301-Hooking part; 303-Second drive part; 304-Second adjustment part; 305-Expanding handwheel; 306-Mounting plate; 307-Mounting cavity; 308-Mounting groove; 309-Lifting sleeve; 310-Threaded rod; 311-Flexible rod; 312-Traction rope; 313-Hook claw; 314-Connecting rod. Detailed Implementation

[0063] The following detailed embodiments are provided to aid the reader in gaining a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein, but rather, changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted. The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein are provided only to illustrate some of the many possible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent after understanding the disclosure of this application. Throughout this specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. Conversely, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between. As used herein, the term "and / or" includes any one of the relevant items listed and any combination of any two or more of them. Although terms such as "first," "second," and "third" may be used herein to describe individual components, assemblies, regions, layers, or portions, these components, assemblies, regions, layers, or portions are not limited by these terms. More precisely, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as such in the examples may also be referred to as the second component, assembly, region, layer, or part. For ease of description, spatial relational terms such as “above,” “upper,” “below,” and “lower” may be used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relational terms are intended to include not only the orientation depicted in the drawings but also the different orientations of the device in use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element.Therefore, the term "above" includes both "above" and "below" depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly. The terminology used herein is for describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "comprising," "including," and "having" enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof. Variations in the shapes shown in the figures may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the figures but include changes in shape that occur during manufacturing. The features of the examples described herein may be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible as will be apparent upon understanding the disclosure of this application.

[0064] In the field of minimally invasive interventional treatment of pleural cavity diseases, one of the core challenges faced by clinicians is how to manage complex, multi-chambered pleural effusions. When the pleural cavity becomes infected, infected, or invaded by tumors, leading to fibrin exudation, deposition, and organization, the originally continuous potential cavities are divided by a crisscrossing fibrous network, forming multiple isolated encapsulated effusion areas. Traditional puncture and aspiration methods often fall into a cycle of "puncture-drainage-re-puncture" when faced with such pathological changes: a single puncture needle can only drain the effusion in the cavity it is in, while other effusions encapsulated by fibrous barriers cannot be cleared through the same path, forcing the surgeon to perform multiple punctures from multiple angles. This undoubtedly increases the risk of complications such as pneumothorax, bleeding, and infection, while also prolonging the operation time and increasing patient suffering.

[0065] To address the aforementioned clinical challenges, this application provides a composite interventional device integrating puncture, steering, hooking, and separation functions. Its core design concept lies in establishing a working channel through a single puncture, allowing for flexible adjustment of the working end's posture within the body to actively break, grasp, or pull away abnormal fibrous tissue, thereby merging multiple compartments into a single cavity and achieving thorough drainage of fluid accumulation. The technical solution of this application will be described in detail below with reference to the accompanying drawings. Furthermore, based on the basic solution, various alternative or superimposed structural forms can be developed to address different complex clinical situations.

[0066] See Figure 1 , Figure 4 , Figure 7 and Figures 9 to 13The pulmonary fibrosis removal device provided in this application can be summarized as "one platform and two systems." The "one platform" refers to the base 1, which constitutes the supporting framework and guiding foundation of the entire device; the "two systems" refer to the puncture component and the hooking component, which respectively undertake the tasks of opening up the fibrous network and grasping and pulling away tissue. Through this modular design, the functional components are both relatively independent and work together to complete the complex pleural effusion removal work.

[0067] The specific structure of the base 1 includes a base 101 and multiple guide sections 102 with guide cavities. One end of each guide section 102 is spaced apart from the base 101, and the other end extends along a first direction (i.e., the axial direction of the device entering the human body, which is also the direction of the device's movement during surgery). This multi-point spaced layout is not a simple geometric arrangement, but rather based on a profound understanding of the operating space within the thoracic cavity: within a puncture sheath of limited diameter, independent physical channels need to be provided for different functional components to avoid the puncture needle, hook, traction rope, etc., from becoming entangled or interfering with each other during operation. The base 101 serves as the control hub for the external operating end, centrally housing all driving components, facilitating one-handed or two-handed operation by the surgeon.

[0068] Considering the significant individual differences in thoracic cavity anatomy among patients in clinical practice, and the varying distribution, orientation, and density of the fibrous mesh, simply having multiple fixed channels is insufficient to cope with the complex and ever-changing internal environment. To address this issue, both the puncture and retraction components of this application are designed to be independently and precisely controllable, allowing the operator to adjust the posture of the working end inside the body in real time from outside the body.

[0069] Specifically, the puncture assembly has a puncture section 201 for puncturing fibrous tissue, a first drive section 202, and a first adjustment section 203. The first drive section 202 is located at one end of the base 101 opposite to the guide section 102, i.e., in a position easily accessible externally; the puncture section 201 is located on the other side of the guide section 102 opposite to the base 101, i.e., the distal working end extending into the body; one end of the first adjustment section 203 is connected to the first drive section 202, and the other end passes through one of the guide sections 102 and connects to the puncture section 201. Through this cannulation connection method, the first drive section 202 can precisely adjust the direction of the puncture section 201 through the first adjustment section 203, so that it is no longer a simple straight in and out, but can flexibly adjust the angle according to the location of the fibrous septa detected during the operation, puncturing the fibrous septa of adjacent cavities from different directions.

[0070] Please combine further Figure 2 , Figure 5 and Figure 8After the puncture assembly successfully opens the fibrous septa and establishes the intercavitary channel, the key to the treatment outcome lies in how to remove the broken but still attached fibrous strands, organized tissue, or necrotic material from the body. To address this, this application provides a hooking assembly, which includes a hooking part 301, a second driving part 303, and a second adjusting part 304. The second driving part 303 is located at the end of the base 101 opposite to the guide part 102; the hooking part 301 is located at the end of the puncture part 201 near the guide part 102. This positional relationship allows puncture and hooking operations to be performed alternately in adjacent working areas; one end of the second adjusting part 304 is connected to the second driving part 303, and the other end passes through another guide part 102 and connects to the hooking part 301. With this arrangement, the second driving part 303 can precisely control the opening and closing state of the hooking part 301 through the second adjusting part 304. When the hooking part 301 is in the open state, its end structure unfolds like a claw or a basket, which can cover, hook or hold the target fibrous tissue; when it is necessary to grasp or release, it can be switched to the closed state by external control, which can tighten and firmly grasp the target tissue so as to drag it into the outer tube or pull it directly out of the body.

[0071] As a core improvement in this application, the structural design of the puncture section 201 directly affects penetration efficiency, manipulation precision, and protection of surrounding normal tissue. Please refer to... Figures 11 to 13 In a preferred embodiment, the puncture portion 201 has a tapered structure 211 along the first direction, and a needle tip 204 for piercing fibrous tissue is formed at the end opposite to the guide portion 102. This tapered design, similar to a "bullet" or "cone," significantly reduces the resistance when piercing the fibrous septum compared to traditional flat-tipped or blunt-tipped instruments, making it easier for the puncture portion 201 to penetrate tough, organized tissue. At the same time, because it gradually tapers, it does not create a "sudden" effect at the moment of penetration, reducing the impact and tearing damage to the normal pleural tissue behind it.

[0072] Based on this, considering the diverse pathological types of fibrous tissue, some presenting as a loose network and others as a dense scar-like structure, a single sharp needle tip may have limitations in certain scenarios. Therefore, another structural form can be developed: the puncture section 201 can adopt a switchable tip design. Specifically, the needle tip 204 can be configured as a retractable blunt-tipped structure. When the puncture section 201 needs to move within the cavity and locate the target septum, the sharp needle tip 204 retracts into the tapered structure 211, presenting a blunt and rounded state, avoiding accidental damage to healthy lung tissue or blood vessel walls along the movement path; when reaching the predetermined puncture point and needing to puncture the fibrous septum, further operation by the first drive section 202 causes the needle tip 204 to extend, completing the penetration with a sharp tip. This "switchable tip" design is equivalent to integrating the functions of a probe and a puncture needle into the same working end, which is of great significance for improving surgical safety and reducing iatrogenic injury. There are several ways to achieve this telescopic function, such as setting a micro push rod inside the puncture part 201 or using the phase transformation characteristics of shape memory alloys under temperature changes.

[0073] The mechanical structure design of the first drive unit 202 is particularly crucial to enabling the puncture section 201 to maneuver flexibly in two-dimensional and even three-dimensional space. (See also...) Figure 9 and combined Figure 3 In one specific implementation, the first drive unit 202 includes a mounting ear 205, a take-up roller 207, and an adjusting wheel 208. The mounting ear 205 is located on the side of the base 101 opposite to the guide portion 102, and two are spaced apart, designated as a first mounting ear and a second mounting ear. A take-up space 206 is formed between the first and second mounting ears. One end of the take-up roller 207 is fixed to the side wall of the first mounting ear facing the second mounting ear, and the other end extends towards the second mounting ear and protrudes from the side wall of the second mounting ear opposite to the first mounting ear. This protruding design exposes the end of the take-up roller 207 to the outside. The adjusting wheel 208 is located at the portion of the take-up roller 207 that protrudes from the second mounting ear. During operation, the operator rotates the adjusting wheel 208 with their fingers, using the clockwise or counterclockwise rotation of the adjusting wheel 208 to drive the take-up roller 207 to rotate synchronously, thereby winding or releasing the first adjusting portion 203 connected to it. The surface of the adjusting wheel 208 can be knurled or its diameter increased to improve friction and operating comfort.

[0074] Correspondingly, the first adjusting part 203, which cooperates with the first driving part 202, includes a flexible sleeve 209 and an adjusting rope 210. One end of the flexible sleeve 209 is connected to the guide part 102, and the other end extends along the first direction and is connected to the piercing part 201. The flexible sleeve 209 serves to protect the adjusting rope 210 and constrain its movement trajectory. One end of the adjusting rope 210 is connected to the take-up roller 207, and the other end passes through the guide part 102 and the flexible sleeve 209 in sequence and is connected to the piercing part 201. When the take-up roller 207 rotates to tighten the adjusting rope 210, the adjusting rope 210 pulls one side of the piercing part 201, causing it to bend in the corresponding direction. The bending angle is positively correlated with the tightening amount of the adjusting rope 210. When the take-up roller 207 rotates in the opposite direction to release the adjusting rope 210, the piercing part 201 returns to its original position due to the elastic restoring force of its own material.

[0075] To achieve greater steering freedom and address the issue that bending in a single direction cannot meet the demands of complex spatial operations, this application also provides further improvement schemes. Please continue reading. Figure 9 As a basic extension, two first driving units 202 and two first adjusting units 203 are provided. The two first driving units 202 correspond one-to-one with the two first adjusting units 203, and the two first adjusting units 203 are arranged at intervals along the radial direction of the puncture section 201, for example, facing each other at 180 degrees. Through this symmetrical arrangement, the two first driving units 202 can work independently or collaboratively. When the puncture section 201 needs to bend to the left, the left adjusting rope 210 is tightened while the right adjusting rope 210 is appropriately loosened; when bending to the right, the operation is reversed. If both adjusting ropes 210 are tightened simultaneously at the same speed, the overall axial tension and stiffness of the puncture section 201 can be increased, making it more suitable for penetrating dense tissue. If the two adjusting ropes 210 alternately perform small tightening and loosening movements, the end of the puncture section 201 can be swung or vibrated, which helps to cut tough fibers. This design draws on the "dual traction wire" control principle in vascular interventional catheters, allowing the operator to achieve multi-dimensional real-time adjustments to the posture of the working end inside the body externally.

[0076] Building upon this, a scheme can be further developed with four adjusting cords 210 arranged in a cross shape (0°, 90°, 180°, 270°). The four adjusting cords 210 are independently controllable, allowing the puncture site 201 to bend in any direction, even achieving spatial curvature. This is invaluable for procedures requiring bypassing vital organs and precisely reaching specific septal locations. For example, when dealing with fibrous septa near the mediastinum or costophrenic sinus, the multi-directional bending capability ensures the puncture site 201 enters at the optimal angle, avoiding damage to nearby major blood vessels or nerves.

[0077] Besides the aforementioned mechanical traction-based steering method, another alternative can be adopted: the first adjustment unit 203 uses shape memory alloy wire, such as nickel-titanium alloy wire. Specifically, the nickel-titanium alloy wire is pre-formed into the desired curved shape and embedded in the tube wall or internal channel of the puncture part 201. By setting electrodes at the end of the first drive unit 202 and connecting them to both ends of the alloy wire, an electric current is applied to heat the alloy wire. When its temperature exceeds the phase transformation temperature point, the alloy wire transforms from martensitic to austenitic, restoring its preset shape, thereby causing the puncture part 201 to bend. Changing the current magnitude can control the degree of bending, and switching the conduction of different alloy wires can control the bending direction. This "electrically controlled steering" method eliminates the need for a complex mechanical winding structure, resulting in more precise and smoother control, and a faster response speed, providing the possibility for future programmed and automated operation.

[0078] After puncture and initial separation, the grasping and removal of loosened but still adhered fibrous strands, necrotic tissue, or organized plaques is a crucial step in determining the drainage effect. For the hooking component, this application provides an embodiment with high mechanical synchronization and mechanical amplification effect. Please refer to... Figures 10 to 13 The second drive unit 303 includes an unfolding handwheel 305, which is formed on the side of the base 101 opposite to the guide unit 102 and spaced apart from the first drive unit 202, so that the operator can distinguish it by touch during operation and avoid confusion. The diameter of the unfolding handwheel 305 can be designed to be larger than that of the adjusting wheel 208 to provide greater torque and adapt to the greater resistance that may be encountered during grasping operations.

[0079] The second adjustment section 304 is designed as a composite structure including a mounting plate 306, a lifting sleeve 309, a threaded rod 310, a flexible rod 311, and a traction rope 312. The mounting plate 306 is located between the piercing section 201 and the flexible sleeve 209 and serves as the mounting base for the hook section 301. An mounting cavity 307 is provided inside the mounting plate 306. Mounting grooves 308 are spaced apart along the circumferential direction to accommodate and constrain the movement of the hook 313. The lifting sleeve 309 has a ring structure and is located inside the mounting cavity 307, allowing it to slide axially. The threaded rod 310 extends along the first direction and is threadedly connected to the lifting sleeve 309, forming a screw and nut pair. One end of the flexible rod 311 is connected to the guide part 102, and the other end is connected to the mounting plate 306, serving as a connection and guide. One end of the traction rope 312 passes through the base 101 and is connected to the unfolding handwheel 305, while the other end passes through the guide part 102, the flexible rod 311, and the mounting plate 306 in sequence and is connected to the threaded rod 310.

[0080] During operation, the clockwise or counterclockwise rotation of the handwheel 305 drives the threaded rod 310 to rotate synchronously via the traction rope 312. Based on the screw drive principle, the rotational motion of the threaded rod 310 is converted into linear movement of the lifting sleeve 309 on the threaded rod 310, i.e., movement in the first direction or the opposite direction. Since the traction rope 312 may twist when passing through the slender guide portion 102, a universal joint or flexible coupling can be installed at the connection between the traction rope 312 and the threaded rod 310 to ensure effective torque transmission. In addition, to reduce friction, the surface of the traction rope 312 can be coated with a low-friction coefficient material such as polytetrafluoroethylene, and a lubricating coating can also be provided on the inner wall of the guide portion 102.

[0081] The hooking part 301, which matches the above-mentioned transmission structure, includes a hook 313 and a connecting rod 314. Multiple hooks 313 are provided, and each hook 313 corresponds one-to-one with a multiple mounting groove 308. One end of each hook 313 is rotatably connected to the side wall forming the mounting groove 308 via a rotating shaft, and the other end extends from the mounting groove 308 to form a mounting plate 306, thus forming an openable "claw". One end of the connecting rod 314 is rotatably connected to a preset position (usually the middle or near the root) of the hook 313 via a rotating shaft, and the other end is rotatably connected to the lifting sleeve 309 via a rotating shaft, thus forming a crank-slider mechanism.

[0082] Based on this linkage transmission mechanism, when the lifting sleeve 309 moves along the first direction (i.e., towards the distal end) on the threaded rod 310, the connecting rod 314 will push the hook 313 to rotate around its root axis, causing multiple hooks 313 to open away from each other, presenting an open state; conversely, when the lifting sleeve 309 moves in the opposite direction to the first direction (i.e., towards the proximal end), the connecting rod 314 pulls the hooks 313, causing them to close together and contract, presenting a closed state. This structure, which utilizes a screw drive to power a crank-slider mechanism, has the following advantages: First, the screw drive has a large reduction ratio, which can amplify a small handwheel torque into a large gripping force, ensuring that the hook 313 has sufficient clamping force when gripping tough fibrous tissue; Second, the screw drive has a certain degree of self-locking, so when the handwheel 305 is stopped from being turned, the friction between the threaded rod 310 and the lifting sleeve 309 can maintain its position, preventing the hook 313 from accidentally loosening due to the reverse force; Third, the opening and closing actions driven by the connecting rod 314 are synchronous, with all hooks 313 acting simultaneously, ensuring a stable gripping center and preventing slippage.

[0083] Considering the diverse morphologies and textures of fibrous tissues—some appearing as large, cord-like strands, others as sheet-like patches, and still others as fine, net-like structures—the specific morphology of hook 313 can be expanded in various ways.

[0084] In addition to the three-claw or multi-claw structure shown in the above embodiments, the hook 313 can also be designed as a "basket-like" structure. When in the closed state, multiple elastic metal or polymer filaments are bundled together, reducing their diameter to facilitate passage through the guide 102 and outer sleeve 107. When extended beyond the distal end of the guide 102 and switched to the open state, the elastic filaments naturally spring open due to their own elasticity, forming an olive-shaped or elliptical space similar to a stone-collecting basket. By rotating or pushing and pulling the entire device, loose fibrous tissue, flocculent material, or small pieces of necrotic tissue can be "netted" into the basket. Then, by reversing the operation to close the basket, it is compressed and removed from the body. The basket filaments can be made of a super-elastic nickel-titanium alloy to ensure that they can return to their initial shape after repeated opening and closing.

[0085] Another expansion design involves framing the end of the claw 313 with a "crocodile mouth" shape featuring tiny serrations or barbs. This structure is better suited for gripping smooth yet tough pleural plaques or thickened fibrous plates, as the serrations increase friction and prevent slippage. Simultaneously, the inner surface of the claw 313 can be machined with transverse grooves or grooves to further enhance gripping stability. In scenarios requiring electrocoagulation hemostasis, the claw 313 itself can function as an electrode for a monopolar electrosurgical unit, performing electrocoagulation while gripping tissue to reduce bleeding.

[0086] Another type is the "scissor-like" claw, where two claws 313 cross and close like scissor blades. This structure is suitable for scenarios requiring precise cutting of fine fiber strands, rather than dragging them out as a whole. Through the closing action, the two blades interlock to cut the fiber strands. To avoid damaging normal tissue, the blades can be designed as blunt blades, meaning they only have a shearing effect without a cutting effect, or the blades can be exposed only at specific angles.

[0087] The layout design of the guide section 102 is crucial in terms of device integration, miniaturization, and functional partitioning. (See also...) Figure 1 , Figure 4 and Figure 7In one specific embodiment, the guide part 102 is specifically a guide rod 104, and three guide rods 104 are provided. To achieve functional zoning and operational coordination, one guide rod 104 is located at the center of the base 101, and the remaining two guide rods 104 are respectively arranged on both sides of the guide rod 104 located at the center along the radial direction of the base 101. The guide rod 104 located at the center is connected to the flexible rod 311 and is used to operate the hooking assembly; the guide rods 104 on both sides of the guide rod 104 located at the center are connected to the flexible sleeve 209 and are used to operate the puncture assembly. This "one center, two wings" layout ensures that the working ends of the puncture assembly and the hooking assembly are basically on the same horizontal plane when advancing axially, which facilitates coordinated operation; at the same time, when the device bends or twists, the puncture assemblies on both sides can provide a certain degree of support and protection for the hooking assembly in the center, making the overall force more even.

[0088] Of course, the number and layout of the guide rods 104 are not limited to the three types mentioned above. For more complex multilocular effusions, especially when the fibrous mesh is distributed in a honeycomb pattern in three-dimensional space, the scheme can be expanded to four, five, or even six guide rods. For example, four guide rods can be arranged in a cross shape to control puncture or hooking operations in the four directions (up, down, left, and right); five guide rods can be arranged in an orthogonal layout with the center and four corners; and six guide rods can be arranged in a hexagon to achieve simultaneous multi-point operation with no blind spots. This multi-channel design allows the surgeon to use multiple functional components simultaneously or alternately after a single catheter placement. For example, one channel can be used to inject saline or contrast agent to expand the field of vision, one channel can be used for ultrasound exploration, one channel can be used for puncture, and one channel can be used for grasping, thereby greatly improving surgical efficiency and the ability to deal with complex situations.

[0089] The choice of material for the guide rod 104 is also a key factor in determining the device's performance. Besides commonly used medical-grade 304 or 316L stainless steel, a composite structure of polymer materials and metal braiding can also be used. For example, the guide rod 104's tube wall consists of a polytetrafluoroethylene (PTFE) inner layer, a stainless steel wire braided layer, and a polyamide outer layer. The stainless steel wire braided layer provides excellent bending resistance and torque transmission performance, allowing the internal working end to rotate synchronously during external rotation operations; the PTFE inner layer provides an extremely low coefficient of friction, ensuring smooth sliding of the adjusting rope 210 or traction rope 312 within; and the polyamide outer layer ensures the tube's flexibility and biocompatibility. This composite tube possesses both sufficient support to penetrate tissue and good flexibility, better adapting to the natural physiological curvature of the human chest cavity and reducing pressure on intercostal nerves and blood vessels.

[0090] To further enhance the device's clinical applicability, ease of operation, and versatility, the base 1 also includes a series of auxiliary structures. Please refer to... Figure 1and Figure 4 The base 1 also includes a cannula handle 105, an annular plate 106, and an outer sleeve 107. The cannula handle 105 is fitted onto the outside of the three guide rods 104, and its surface can be designed with ergonomic textures or finger grip grooves to provide the operator with a stable grip point, facilitating overall forward, backward, rotation, and fixation operations. A locking mechanism, such as a simple buckle or friction ring, can be provided inside the cannula handle 105 to lock the relative position of the guide rods 104 when it is necessary to fix them, preventing accidental slippage.

[0091] An annular plate 106 is disposed on the side of the sleeve handle 105 opposite to the base 101 and is sleeved on the outside of the three guide rods 104. The annular plate 106 can limit and guide, ensuring that the multiple guide rods 104 maintain a predetermined relative position before entering the outer sleeve 107, and avoid interlacing. At the same time, the annular plate 106 can also serve as an interface for connection with the outer sleeve 107.

[0092] The outer sheath 107 is located on the side of the annular plate 106 opposite to the cannula handle 105, extends along the first direction, and is fitted over the outside of the three guide rods 104. The outer sheath 107 is the outermost protective sheath of the entire device when it enters the human body, and has multiple functions: First, it protects the three guide rods 104 and their internal delicate structures from compression and abrasion by subcutaneous tissue, muscles, and intercostal tissues during puncture; second, the smooth outer sheath 107 can reduce frictional damage to tissues when the device moves within the body; third, when withdrawing the device, it can restrain the grasped fibrous tissue inside the outer sheath 107, preventing it from falling into the thoracic cavity or subcutaneous tissue when passing through the puncture channel, causing implantation or spread of infection.

[0093] The structure of the outer sheath 107 can be further expanded in terms of functionality. For example, the distal end of the outer sheath 107 (i.e., the end that enters the body) can be inlaid or fitted with a radiopaque ring made of materials such as platinum, gold or tantalum, or coated with an ultrasound-visible microbubble coating, so as to accurately locate the working end of the device under X-ray, CT or ultrasound imaging equipment, which is of great significance for the precise puncture of specific compartments.

[0094] Furthermore, the sidewalls of the outer tube 107 can be provided with multiple tiny side holes along the axial and circumferential directions. When the outer tube 107 is used as a drainage channel, the proximal interface of the outer tube 107 is connected to a negative pressure suction device, and the accumulated fluid can be drawn into the outer tube 107 and drained out of the body through these side holes and the distal main hole. The presence of side holes can significantly increase the drainage area, improve the efficiency of fluid drainage, and prevent the single main hole from being blocked by tissue.

[0095] In certain specialized applications, such as empyema with severe infection, where the pleural cavity contains a large amount of viscous pus and necrotic tissue, simple drainage is often insufficient for complete removal. In such cases, the outer cannula 107 can also serve as an irrigation-suction channel. Specifically, a coaxial inner cannula can be installed inside the outer cannula 107, forming a dual-lumen structure. One lumen is used for continuous infusion of saline solution containing antibiotics or fibrinolytic enzymes (such as urokinase) for irrigation, while the other lumen is used for simultaneous negative pressure suction, forming a circulating irrigation system. This design can effectively dilute pus, dissolve fibrin clots, control infection, and promote pleural cavity cleaning and lung re-expansion.

[0096] Another approach is to design the outer sheath 107 as an expandable sheath. During initial insertion, the outer sheath 107 is in a contracted state with a smaller diameter, facilitating puncture through the intercostal spaces. When the volume of fibrous tissue to be removed is large, or when larger instruments need to be introduced, the distal end of the outer sheath 107 can be radially expanded using an expansion mechanism at its proximal end, widening the working channel. This expansion mechanism can be a built-in metal braided mesh, which shortens axially and expands radially through pushing and pulling, or a polymer balloon, which expands by injecting liquid. After expansion, a larger space is available for manipulation or tissue removal.

[0097] From the perspective of the overall operational process, the pulmonary fibrosis removal device provided in this application forms a complete "puncture-separation-grabbing-dragging" working paradigm. Its typical operation process can be described as follows:

[0098] First, during the preoperative preparation stage, the optimal puncture point, puncture path, and location of the fibrous septa to be treated are determined based on the patient's imaging data (CT or ultrasound). After assembling all components of the device, the flexibility and reliability of the puncture section 201 and the hooking section 301 are checked.

[0099] Secondly, during the puncture and catheter placement stage, under local anesthesia and image guidance, a small incision is made in the skin with a sharp blade, and the outer cannula 107 with its inner core, along with the internal guide rod 104, is percutaneously inserted into the pleural cavity. After entering the effusion cavity, the inner core is withdrawn. At this point, a small amount of effusion can be aspirated through the side or main port of the outer cannula 107 for diagnostic testing.

[0100] Next, the exploration and separation phase. By operating the cannula handle 105, the guide rod 104 is slowly advanced or rotated to allow the puncture section 201 and the hooking section 301 to enter the first fluid-filled chamber. If a fibrous septum is found, the corresponding adjusting rope 210 is tightened by manipulating the adjusting wheel 208 of one of the first drive sections 202, causing the puncture section 201 to bend and the angle adjusted to align with the fibrous septum. Then, the entire section is advanced forward, and the septum is pierced using the needle tip 204, opening a passage to the adjacent chamber. If the fibrous septum is thick, the opening can be widened by repeated punctures or angle adjustments.

[0101] Next, the grasping and cleaning stage. After multiple compartments are opened up to form a larger cavity, if there are floating necrotic tissue strands or large fibrous patches, operate the hook assembly. By turning the unfolding handwheel 305, the traction rope 312 is driven to rotate the threaded rod 310, which moves the lifting sleeve 309 to the distal end, thereby opening the claws 313 through the connecting rod 314. Under video monitoring, the opened claws 313 are pushed towards the target tissue, bringing it into the grasping range of the claws 313. Then, the unfolding handwheel 305 is turned in the opposite direction, moving the lifting sleeve 309 to the proximal end, and the claws 313 close to firmly grasp the tissue. Gently pull back the entire device, and after confirming that the tissue is firmly grasped, the device is withdrawn entirely or partially, dragging the grasped tissue into the outer sleeve 107. If the tissue is large, it can be dragged to the distal entrance of the outer sleeve 107 first, and then withdrawn from the body along with the outer sleeve 107. If multiple areas need to be treated, the above steps can be repeated.

[0102] Finally, the drainage and closure stage. After cleaning the main fibrous septa, the outer cannula 107 is reinserted into the pleural cavity and connected to a drainage bottle for continuous negative pressure drainage until the effusion is basically drained and the lung tissue is fully re-expanded. Then, the drainage tube is removed and the puncture site is bandaged with pressure.

[0103] In addition to the aforementioned mechanical operation mode, this application also fully considers the integration and expansion of energy forms and device functions to adapt to the needs of different pathological types and clinical scenarios.

[0104] For example, monopolar or bipolar electrocoagulation / electrotomy functions can be integrated into the puncture site 201 or the hook 313. Specifically, this can be achieved by alternately setting the needle tip 204 of the puncture site 201 or the body of the hook 313 with an insulating layer to form a bipolar electrode; or by using the entire hook 313 as a monopolar electrode and attaching a circuit electrode plate to the patient's body. When dealing with highly vascularized fibrous adhesions or inflammatory granulation tissue, the electrocoagulation function can first coagulate and stop bleeding in small blood vessels that may bleed before cutting or grasping, thereby reducing the risk of intraoperative bleeding and maintaining a clear surgical field. When it is necessary to cut tough fibrous strands, the electrotomy mode can provide a sharper and more efficient cutting effect.

[0105] Alternatively, a miniature ultrasonic transducer can be installed inside the puncture site 201 to enable ultrasonic cutting. The ultrasonic scalpel head uses high-frequency (e.g., 55.5 kHz) mechanical vibration to selectively break up tissues with high water content (such as fibrous tissue), while causing less damage to tissues rich in collagen and elastic fibers (such as blood vessel walls and pleura). Utilizing the cavitation effect and mechanical vibration of ultrasound, dense fibrous plates can be broken up more safely and efficiently, making it particularly suitable for fibrous septa removal near large blood vessels or vital organs.

[0106] Furthermore, optical fibers can be integrated into the puncture site 201 or the guide rod 104 to introduce laser energy. For example, the photothermal effect of a holmium laser or thulium laser can be used to vaporize and cut fibrous tissue. Laser optical fibers are thin in diameter and flexible, allowing them to pass through curved channels, and laser cutting is precise with good hemostasis. For certain local plaques requiring precise removal, lasers have unique advantages.

[0107] The introduction of these energy forms will expand the application scope of this device from simple effusion drainage to multiple fields such as pleural biopsy (obtaining tissue samples by electrocautery or laser), local ablation of early pleural tumors, and adhesiolysis, truly realizing an integrated platform for "diagnosis + treatment".

[0108] To ensure the device's visibility within the body, in addition to setting a contrast marker at the distal end of the outer sheath 107, micro-ultrasound contrast material can be embedded in key areas of the puncture section 201 and the hook section 301, such as the tip of the needle 204 and the tip of the hook 313, or their surfaces can be specially treated (such as sandblasting or microgrooving) to enhance their reflected signal under ultrasound, thereby achieving real-time, radiation-free, and precise guidance.

[0109] Finally, from the perspective of materials science and biocompatibility, all parts of this device that enter the human body should be made of materials that meet medical implant-grade standards. Metal components such as the guide rod 104, puncture site 201, and hook 313 can be made of 316L stainless steel, titanium alloy, or nickel-titanium alloy, materials with good strength, toughness, corrosion resistance, and biocompatibility. Polymer components such as the flexible sheath 209, flexible rod 311, and outer sheath 107 can be made of polyurethane, silicone rubber, polytetrafluoroethylene, or polyethylene, and can be endowed with special functions such as antibacterial, anticoagulant, and lubrication through blending and coating. For example, coating the device surface with a hydrophilic coating makes it extremely lubricating upon contact with water, significantly reducing friction during insertion and operation, and minimizing tissue damage; coating with heparin can inhibit thrombus formation and ensure unobstructed drainage.

[0110] In summary, the pulmonary fibrosis removal device provided in this application, through the construction of a multi-channel guiding platform, the integration of a precisely controllable puncture steering system and an openable grasping system, and the combination of various extended structures and energy forms, forms a comprehensive solution encompassing mechanical operation, energy assistance, and simple drainage to complex cleanup. Its core value lies in achieving integrated "opening-cleaning-drainage" of multilocular, loculated pleural effusion lesions through a single puncture approach. This fundamentally avoids the cumulative trauma caused by traditional multiple punctures, significantly reduces the risk of complications, and shortens the operation time, potentially becoming one of the standard tools for treating complex pleural effusions. The specific embodiments and extended solutions described above are merely illustrative of the technical concept of this application and are not intended to limit it. Those skilled in the art should understand that these technical features can be combined, modified, or equivalently replaced without departing from the spirit and scope of this application, and all such modifications and substitutions should be covered within the scope of protection of this application.

[0111] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A device for removing pulmonary fibrosis; characterized in that, include: The base has a base and multiple guide parts with guide cavities; One end of each of the plurality of guide portions is spaced apart from the base, and the other end extends along a first direction; A puncture assembly having a puncture portion for puncturing fibrous tissue, a first drive portion, and a first adjustment portion; the first drive portion is disposed at one end of the base opposite to the guide portion; the puncture portion is disposed on the other side of the guide portion opposite to the base; One end of the first adjustment part is connected to the first drive part, and the other end passes through one of the guide parts and is connected to the puncture part; the first drive part can adjust the direction of the puncture part through the first adjustment part. A hook assembly has a hooking part, a second driving part, and a second adjusting part; the second driving part is disposed at one end of the base away from the guide part; the hooking part is disposed at one end of the piercing part near the guide part; one end of the second adjusting part is connected to the second driving part and the other end passes through the other guide part and is connected to the hooking part; the second driving part can adjust the hooking part to be in an open or closed state through the second adjusting part.

2. The pulmonary fibrosis removal device according to claim 1, characterized in that, The puncture portion has a tapered structure along the first direction, and a needle tip for piercing fibrous tissue is formed at the end opposite to the guide portion.

3. The pulmonary fibrosis removal device according to claim 2, characterized in that, The first driving unit includes: Two mounting ears are provided on the side of the base away from the guide portion, and are spaced apart. The two mounting ears are a first mounting ear and a second mounting ear, and a winding space is formed between the first mounting ear and the second mounting ear. A take-up roller, one end of which is fixed to the sidewall of the first mounting ear facing the second mounting ear, and the other end extending toward the second mounting ear and passing through the sidewall of the second mounting ear away from the first mounting ear; and An adjusting wheel is disposed at the portion of the take-up roller that extends beyond the second mounting ear. The clockwise or counterclockwise rotation of the adjusting wheel can drive the take-up roller to rotate clockwise or counterclockwise.

4. The pulmonary fibrosis removal device according to claim 3, characterized in that, The first adjustment unit includes: A flexible cannula, one end of which is connected to the guide portion, and the other end extending along the first direction and connected to the puncture portion; and An adjusting rope has one end connected to the take-up roller and the other end passing through the guide portion and the flexible sleeve in sequence and connected to the puncture portion.

5. The pulmonary fibrosis removal device according to claim 4, characterized in that, There are two of each of the first driving part and the first adjusting part. The two first driving parts correspond one-to-one with the two first adjusting parts, and the two first adjusting parts are arranged at intervals along the radial direction of the puncture part. The rotation direction of the puncture head can be adjusted by the two first drive parts and the two first adjustment parts.

6. The pulmonary fibrosis removal device according to claim 4, characterized in that, The second drive unit includes an unfolding handwheel, which is formed on the side of the base away from the guide unit and is spaced apart from the first drive unit.

7. The pulmonary fibrosis removal device according to claim 6, characterized in that, The second adjustment unit includes: An installation disc is disposed between the puncture portion and the flexible sleeve, and surrounds an installation cavity; the installation disc is provided with installation grooves spaced apart along the circumferential direction. A lifting sleeve, which has a ring-shaped structure, is disposed in the mounting cavity; and A threaded rod that extends along the first direction and is threadedly connected to the lifting sleeve; A flexible rod, one end of which is connected to the guide portion and the other end of which is connected to the mounting plate; and A traction rope has one end passing through the base and connected to the unfolding handwheel, and the other end passing through the guide, the flexible rod, and the mounting plate in sequence and connected to the threaded rod. The clockwise or counterclockwise rotation of the unfolding handwheel can drive the threaded rod to rotate clockwise or counterclockwise through the traction rope. The clockwise or counterclockwise rotation of the threaded rod can drive the lifting sleeve to move on the threaded rod in the first direction or in the opposite direction.

8. The pulmonary fibrosis removal device according to claim 7, characterized in that, The hook-and-mount part includes: The device includes multiple hooks, each corresponding to one of the mounting slots. One end of each hook is rotatably connected to the sidewall forming the mounting slot, and the other end extends from the mounting slot out of the mounting plate. The connecting rod has one end rotatably connected to the preset position of the hook, and the other end rotatably connected to the lifting sleeve; when the lifting sleeve moves on the threaded rod in the first direction or in the opposite direction, the multiple hooks can move closer to each other and retract into a closed state or move away from each other and open into an open state.

9. The pulmonary fibrosis removal device according to claim 7, characterized in that, The guide part is a guide rod, and there are three guide rods. One of the guide rods is located at the center of the base, and the remaining two guide rods are respectively arranged on both sides of the guide rod located at the center along the radial direction of the base. The guide rod located at the center is connected to the flexible rod, and the guide rods on both sides of the guide rod located at the center are connected to the flexible sleeve.

10. The pulmonary fibrosis removal device according to claim 9, characterized in that, The matrix also includes: The sleeve handle is fitted onto the outside of the three guide rods; An annular plate is disposed on the side of the sleeve handle opposite to the base and is sleeved on the outside of the three guide rods; and The outer sleeve is disposed on the side of the annular plate opposite to the sleeve handle, extends along the first direction, and is sleeved on the outside of the three guide rods.

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