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CN-121987299-A - Lung fibrous tissue removing device

CN121987299ACN 121987299 ACN121987299 ACN 121987299ACN-121987299-A

Abstract

The application aims to provide a lung fibrous tissue removing device which starts from a source and aims to safely and effectively break, ablate or ablate abnormal fibrous grids in pleural cavities in a physical or energy mode, open up separate rooms and enable a plurality of independent areas to be fused into a whole. Thus, the complete drainage of all effusions in the chest can be realized by only one or a few punctures. The method can not only remarkably shorten the operation time and relieve the pain of patients, but also fundamentally avoid lung wounds and various complications caused by repeated puncture, thereby greatly improving the treatment effect and safety of pleural effusion, in particular complex multi-atrial effusion, and having important clinical value and social significance.

Inventors

  • JIN ZHUANG
  • CAO JUNYING
  • YU XIN
  • ZHANG MENG

Assignees

  • 中国人民解放军北部战区总医院

Dates

Publication Date
20260508
Application Date
20260310

Claims (10)

  1. 1. A lung fibrous tissue removal device, comprising: The device comprises a base body, a plurality of guide parts, a plurality of guide grooves and a plurality of guide grooves, wherein the base body is provided with a base seat and a plurality of guide parts with guide cavities; The puncture assembly is provided with a puncture part for puncturing fibrous tissues, a first driving part and a first adjusting part, wherein the first driving part is arranged at one end of the base, which is away from the guide part, the puncture part is arranged at the other side of the guide part, which is away from the base, the first adjusting part is connected with the first driving part, one end of the first adjusting part penetrates through one of the guide parts and is connected with the puncture part, and the first driving part can adjust the steering of the puncture part through the first adjusting part; The hooking component is provided with a hooking part, a second driving part and a second adjusting part, wherein the second driving part is arranged at one end of the base, which is far away from the guiding part, the hooking part is arranged at one end of the puncture part, which is close to the guiding part, one end of the second adjusting part is connected with the second driving part, the other end of the second adjusting part penetrates through the other guiding part and is connected with the hooking part, and the second driving part can adjust the hooking part to be in an open state or a closed state through the second adjusting part.
  2. 2. The pulmonary fibrous tissue removal device of claim 1, wherein the piercing portion is tapered in the first direction and a needle tip is formed at an end facing away from the guiding portion for piercing fibrous tissue.
  3. 3. The pulmonary fibrous tissue removal device of claim 2, wherein the first drive portion includes: the mounting lugs are arranged on one side, away from the guide part, of the base, two mounting lugs are arranged at intervals, the two mounting lugs are a first mounting lug and a second mounting lug respectively, and a rolling space is formed between the first mounting lug and the second mounting lug; a winding roller with one end fixed on the side wall of the first mounting lug facing the second mounting lug and the other end extending towards the second mounting lug and penetrating out from the side wall of the second mounting lug facing away from the first mounting lug, and The adjusting wheel is arranged at the part of the winding roller penetrating out of the second mounting lug, and clockwise rotation or anticlockwise rotation of the adjusting wheel can drive the clockwise pointer of the winding roller to rotate or anticlockwise rotate.
  4. 4. The pulmonary fibrous tissue removal device of claim 3, wherein the first adjustment portion includes: a flexible sleeve having one end communicating with the guide portion and the other end extending in the first direction and connected to the puncture portion, and And one end of the adjusting rope is connected with the winding roller, and the other end of the adjusting rope sequentially passes through the guide part and the flexible sleeve and is connected with the puncture part.
  5. 5. The pulmonary fibrous tissue removal device of claim 4, wherein two first driving portions and two first adjusting portions are provided, the two first driving portions and the two first adjusting portions are in one-to-one correspondence, and the two first adjusting portions are arranged at intervals along the radial direction of the piercing portion; the rotation direction of the puncture part can be adjusted through the two first driving parts and the two first adjusting parts.
  6. 6. The pulmonary tissue removal device of claim 4, wherein the second drive portion includes a deployment handwheel formed on a side of the base facing away from the guide portion and spaced apart from the first drive portion.
  7. 7. The pulmonary fibrous tissue removal device of claim 6, wherein the second adjustment portion includes: the mounting plate is arranged between the puncture part and the flexible sleeve, and is provided with a mounting cavity in a surrounding manner; A lifting sleeve which is in an annular structure and is arranged in the mounting cavity, and The threaded rod extends along the first direction and is in threaded connection with the lifting sleeve; A flexible rod having one end communicating with the guide portion and the other end connected with the mounting plate, and The device comprises a base, a stretching hand wheel, a guide part, a flexible rod, a mounting plate, a threaded rod, a pulling rope, a lifting sleeve and a lifting sleeve, wherein one end of the pulling rope penetrates through the base and is connected with the stretching hand wheel, the other end of the pulling rope sequentially penetrates through the guide part, the flexible rod and the mounting plate and is connected with the threaded rod, the clockwise pointer of the stretching hand wheel rotates or anticlockwise rotates to drive the clockwise pointer or anticlockwise rotation of the threaded rod through the pulling rope, and the clockwise pointer or anticlockwise rotation of the threaded rod can drive the lifting sleeve to move on the threaded rod along the first direction or the direction opposite to the first direction.
  8. 8. The pulmonary fibrous tissue removal device of claim 7, wherein the hooking portion comprises: A plurality of hook claws which are arranged and correspond to the mounting grooves one by one, one end of each hook claw is rotationally connected with the side wall formed with the mounting groove, the other end extends out of the mounting disc from the mounting groove, and When the lifting sleeve moves on the threaded rod along the first direction or the direction opposite to the first direction, the plurality of hook claws can be mutually closed and contracted or mutually opened and opened in a deviating way.
  9. 9. The pulmonary fibrous tissue removal device of claim 7, wherein the guide portion is a guide bar, the guide bar having three guide bars, one of the guide bars being located at a center position of the base, the remaining two guide bars being disposed on both sides of the guide bar located at the center position in a radial direction of the base, respectively; The guide rods positioned at the central position are communicated with the flexible rods, and the guide rods positioned at the two sides of the guide rods at the central position are communicated with the flexible sleeve.
  10. 10. The pulmonary fibrous tissue removal device of claim 9, wherein the matrix further comprises: the sleeve handle is sleeved on the outer sides of the three guide rods; an annular plate arranged on one side of the sleeve handle away from the base and sleeved on the outer sides of the three guide rods, and The outer sleeve is arranged on one side, deviating from the sleeve handle, of the annular plate, extends along the first direction and is sleeved on the outer sides of the three guide rods.

Description

Lung fibrous tissue removing device Technical Field The application relates to the technical field of medical equipment, in particular to a lung fibrous tissue removing device. Background Pleural effusion, commonly known as "hydrocele of the lung", is a clinically very common condition in respiratory medicine and thoracic surgery. It is not an independent disease, but rather a pathological accumulation of fluid within the pleural cavity, which is triggered by a variety of etiologies (e.g., pneumonia, tuberculous pleurisy, malignant pleural metastasis, heart failure, etc.). When the accumulated liquid reaches a certain degree, the lung is pressed, so that chest distress, shortness of breath, dyspnea and even circulatory disturbance occur to patients, and life is endangered when serious. Therefore, the drainage device can timely and effectively drain pleural effusion, and has important significance for relieving symptoms of patients, controlling disease progress and performing diagnostic tests. Currently, the conventional means of clinically treating pleural effusions mainly include thoracocentesis and closed thoracic drainage. In operation, a physician typically uses a pulmonary drainage needle (or thoracocentesis needle) to percutaneously puncture into the pleural cavity under ultrasonic positioning to drain or aspirate fluid. However, existing puncture drainage techniques expose significant limitations during actual clinical procedures, especially when dealing with complex pleural effusions with long disease progression or caused by specific etiologies (e.g., abscesses, tuberculous pleurisy). The core cause of this limitation is the pathological changes in the lung and pleural cavity. When the pleural cavity is subjected to inflammation, infection or tumor invasion, the repair mechanisms of the body are stimulated, resulting in massive fibrinogen exudation and deposition on the surface of the visceral and parietal pleura. These deposited fibrin, if not absorbed and dissolved in time, gradually becomes organized and thickened over time, forming tough fibrous strands or partitions. These new fibrous tissue artificially divides, segments the otherwise intact, continuous pleural cavity (i.e., a potential, negative pressure cavity gap) into a plurality of "lattice" or "small room" like structures of varying size, isolated from each other. Medically, this phenomenon is known as "multi-atrial effusion" or "encapsulated effusion". The formation of the fiber tissue gridding structure greatly increases the difficulty of surgical liquid suction. The method is specifically characterized in that: First, the number of punctures and surgical wounds are increased. In the traditional puncture liquid suction process, one puncture needle can only drain the accumulated liquid in the grid due to the existence of fiber separation. When the effusion in the chamber is completely pumped out, the effusion in other independent areas wrapped by the fibrous tissues still exists and cannot be drained through the existing puncture path. In order to clear all the fluid accumulation in the compartments, the physician has to repeatedly puncture each individual "grid" multiple times and multiple angles under the repeated guidance of ultrasound or CT. This not only significantly extends the surgical procedure time and increases the patient's pain, but more importantly, each puncture of the pleura and lung parenchyma means a new trauma. Multiple punctures greatly increase the occurrence risk of complications such as pneumothorax, hematothorax, renaturing pulmonary edema, intercostal vascular nerve injury, iatrogenic infection and the like. Secondly, the accuracy of diagnosis and the thoroughness of treatment are affected. Multiple atrial effusions often lead to poor drainage of the effusion and incomplete drainage. The residual effusion can not relieve the compression symptoms of patients, but becomes a 'warm bed' for bacteria breeding due to the fact that the residual effusion is rich in proteins and inflammatory cells, so that infection is continuously present, and sepsis is even induced. Meanwhile, the effusion wrapped by the fibrous tissue cannot be sufficiently drained, and also can limit the effective re-tensioning of the lung tissue, and the fibrous plate wrapped on the surface of the lung can limit the expansion of the lung over time, so that the permanent lung function is damaged. From a diagnostic point of view, if only a certain chamber of the room is punctured, the pathological state of the whole thoracic cavity may not be fully reflected, and especially for malignant effusion, critical tumor cells may be missed. Accordingly, there is a need for a pulmonary fibrous tissue removal device that addresses, to some extent, the problems associated with the prior art. Disclosure of Invention The application aims to provide a lung fibrous tissue removing device which starts from a source and aims to safely and effectively break, ablate or