Endoscope auxiliary traction device for digestive system department

Abstract

The invention discloses an endoscope auxiliary traction device for the digestive system department in the technical field of medical auxiliary instruments, which comprises two metal clips and an extension spring, and the side surfaces of the metal clips are both provided with rotating assemblies for adjusting the angle between the metal clips and the extension spring. Buffering assemblies used for buffering when the extension spring rebounds are installed on the rotating assemblies, and the two ends of the spring are fixedly connected to the two buffering assemblies correspondingly. Each buffer assembly comprises a connecting cylinder fixedly connected to the rotating assembly, a buffer plate is arranged in the connecting cylinder, a buffer layer is arranged in the connecting cylinder, the top of the buffer layer adheres to the inner top wall of the connecting cylinder, the bottom of the buffer layer adheres to the top of the buffer plate, and a plurality of compression springs are fixed to the edge of the bottom of the buffer plate in a circular array mode. When the extension spring rebounds, the buffer plate acts on the buffer plate in the connecting cylinder, so that the buffer plate extrudes the buffer layer, the rebounding speed of the extension spring is slowed down, and the safety of the operation of the digestive system department is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary devices, and particularly relates to an endoscopic auxiliary traction device for the department of gastroenterology. Background Art

[0002] The department of gastroenterology is a department in the hospital that specializes in dealing with diseases and disorders related to the digestive system. The digestive system includes organs such as the oral cavity, esophagus, stomach, small intestine, large intestine, rectum, and related digestive glands (such as the liver, pancreas, and gallbladder). These organs are jointly responsible for the intake, digestion, absorption, and excretion of food.

[0003] The diseases mainly concerned by the department of gastroenterology include but are not limited to:

[0004] 1. Gastrointestinal diseases: such as gastritis, gastric ulcer, duodenal ulcer, inflammatory bowel disease (including Crohn's disease and ulcerative colitis), irritable bowel syndrome, etc.

[0005] 2. Liver diseases: such as hepatitis (including viral hepatitis, alcoholic hepatitis, drug-induced hepatitis, etc.), cirrhosis, fatty liver, etc.

[0006] 3. Pancreatic diseases: such as acute pancreatitis, chronic pancreatitis, pancreatic cancer, etc.

[0007] 4. Biliary tract diseases: such as cholecystitis, cholelithiasis, etc.

[0008] The treatment methods in the department of gastroenterology usually include drug treatment, endoscopic treatment (such as gastroscopy, colonoscopy examination and treatment), lifestyle adjustment (such as dietary advice, smoking cessation and alcohol restriction, etc.), and surgical intervention when necessary. Among them, during endoscopic treatment, for some surgical positions that are relatively hidden or narrow and are not convenient for doctors to operate, generally, traction is performed on the lesion position to increase the doctor's surgical space and vision and improve efficiency.

[0009] In the existing metal clip elastic ring combined traction technology, an elastic medical ring is tied to one side arm of the metal clip with a silk thread outside the body, and then they are stored in the release sheath together. After pre-separating the mucosa in the body, the metal clip is fixed on the edge of the lesion. The side arm of the second metal clip passes through the elastic ring and is fixed on the opposite edge of the lesion. The surface mucosa of the lesion will then evert due to the elastic force, exposing the field of view. In the above method, at the moment when the lesion is completely resected, the elastic ring in the stretched state will quickly reset. When the stretching degree of the elastic ring is relatively large, it is easy to drive the metal clip fixed at the lesion position to hit the patient's internal normal tissues during its reset, causing unnecessary harm; when the volume of the resected tissue is small, this phenomenon is particularly obvious. And when the elastic ring quickly resets, the lesion tissue on the metal clip may fall off during the vibration reset process and slide to some positions that are difficult to take out, increasing the doctor's surgical burden and also affecting the success rate of the patient's gastroenterology surgery.

[0010] Therefore, the present invention provides an endoscopic assisted traction device for the department of gastroenterology to solve the above problems. Summary of the Invention

[0011] To solve the above problems, the present invention provides an endoscopic assisted traction device for the department of gastroenterology. When the tension spring rebounds, by acting on the buffer plate inside the connecting cylinder, the buffer plate squeezes the buffer layer, thereby slowing down the rebound speed of the tension spring, reducing the possibility of the metal clip hitting normal tissues, and improving the safety of gastroenterology surgery.

[0012] To achieve the above object, the technical solution of the present invention is as follows: An endoscopic assisted traction device for the department of gastroenterology includes two metal clips, and also includes a tension spring. Rotating components for adjusting the angle between the metal clip and the tension spring are provided on the side surfaces of the metal clips. Buffer components for buffering the rebound of the tension spring are installed on the rotating components. Both ends of the spring are respectively fixedly connected to the two buffer components;

[0013] The buffer components both include connecting cylinders fixedly connected to the rotating components. A buffer plate is arranged inside the connecting cylinder. One end of the tension spring is fixedly connected to the center position of the bottom of the buffer plate. A buffer layer is arranged inside the connecting cylinder. The top of the buffer layer is adhesively bonded to the inner top wall of the connecting cylinder, and the bottom of the buffer layer is adhesively bonded to the top of the buffer plate. A plurality of compression springs are fixedly arranged in a circular array at the bottom edge position of the buffer plate, and the other ends of the compression springs are respectively fixedly connected to the inner bottom wall of the connecting cylinder.

[0014] Principle of the basic solution: During normal gastroenterology surgery, one metal clip is fixed at the edge of the lesion position, and the other metal clip is fixed at other normal tissue locations. The edge of the lesion position is turned up by the acting force of the tension spring, increasing the doctor's surgical space and the visible range of the lesion position, thereby improving the surgical efficiency. When the tension spring is stretched, it will drive the buffer plate to squeeze the compression springs. Therefore, after the lesion position is resected, when the tension spring rebounds, the compression springs will also reset, driving the movement of the buffer plate and one end of the tension spring, playing a certain limiting role in the rebound reset speed of the tension spring. At the same time, during the reset process of the buffer plate, it will squeeze the buffer layer, further slowing down the rebound reset speed of the tension spring.

[0015] The above - mentioned solution has the following beneficial effects: 1. Compared with the problems in the prior art where the metal clip impacts the patient's normal tissue when the elastic ring rebounds and the diseased tissue falls off the metal clip, in this solution, through the synergistic effect of the buffer layer and the compression spring, the rebound kinetic energy of the tension spring is converted into the deformation energy of the buffer material, significantly slowing down the rebound speed, effectively avoiding mucosal tearing or bleeding caused by the high - speed impact of the metal clip on the normal tissue. At the same time, the circular - array compression springs at the edge of the buffer plate evenly disperse the impact force, preventing local stress concentration and further reducing the risk of tissue damage. The reverse resistance generated when the buffer layer is compressed can offset the instantaneous tension mutation after the resection of the diseased focus, maintaining the stability of the traction system and preventing the accidental detachment of the diseased tissue from the metal clip.

[0016] 2. In this solution, the multi - angle free adjustment of the metal clip and the tension spring is realized through the rotating assembly, ensuring that the traction direction matches the anatomical structure of the diseased focus and avoiding the slippage of the metal clip caused by angle deviation.

[0017] Furthermore, the rotating assembly includes a ball - hinge seat fixed to the side surface of the metal clip, and the end of the connecting cylinder far from the spring is fixedly connected to the ball - hinge seat.

[0018] Beneficial effect: When fixing the two metal clips, the design of the ball - hinge seat enables multi - directional rotation between the tension spring and the two metal clips, thus avoiding the torsion of the tension spring and affecting the traction effect. At the same time, it also facilitates the doctor to quickly fix this device at the position of the diseased focus for traction operation, improving the surgical efficiency.

[0019] Furthermore, an isolation plate sleeved on the tension spring is arranged at the bottom of the buffer plate.

[0020] Beneficial effect: The design of the isolation plate effectively separates the tension spring from the compression spring at the bottom of the buffer plate, preventing direct contact and potential interference between them. This ensures that the buffer assembly can work as expected, that is, using the buffer plate and the buffer layer to slow down the rebound speed of the tension spring while maintaining the independence and stability of the compression spring. By isolating the tension spring and the compression spring, the buffer effect of the buffer assembly can be more accurately controlled. The rebound energy of the tension spring will be mainly absorbed and dispersed by the buffer plate and the buffer layer, without being interfered by the compression spring. This helps to improve the buffer efficiency and reduce the risk of the metal clip impacting the normal tissue.

[0021] Furthermore, the buffer layer is filled with one of silica gel foam, foam, and memory foam.

[0022] Beneficial effect: Through these materials with excellent performance in terms of buffering, support, and comfort, the impact force generated when the tension spring rebounds is effectively absorbed and dispersed, thereby reducing the instantaneous tension change rate when the spring rebounds, and reducing the possibility of the metal clip impacting the patient's internal tissue.

[0023] Furthermore, a protective tube is sleeved around the stretching spring along its length direction, and both ends of the protective tube are adhesively bonded to the two connecting cylinders. The protective tube is made of rubber material.

[0024] Beneficial effects: The protective tube can prevent the stretching spring from directly contacting the surrounding tissues during the stretching and rebounding processes, thereby avoiding potential risks of scratching or stabbing. The rubber material protective tube has certain elasticity and flexibility, and can provide additional buffering when the spring acts, further reducing the damage to the surrounding tissues.

[0025] Furthermore, anti-slip patterns are provided on the surfaces of the clamping arms of the metal clip.

[0026] Beneficial effects: The anti-slip patterns can increase the friction between the clamping arms of the metal clip and the lesion tissue or the fixed position, thereby ensuring that the metal clip will not easily slip off due to external forces during the operation. In the case of complex lesion positions or relatively fragile tissues, the design of the anti-slip patterns is particularly important, and it can provide additional stability to prevent the surgical risks caused by the accidental detachment of the metal clip.

[0027] Furthermore, the buffer plates are all slidably engaged with the inner walls of the connecting cylinders.

[0028] Beneficial effects: The sliding engagement between the buffer plates and the inner walls of the connecting cylinders allows the buffer plates to move more smoothly within the connecting cylinders when subjected to the resilience of the stretching spring. This design reduces the frictional resistance between the buffer plates and the inner walls of the connecting cylinders, enabling the buffer plates to better compress the buffer layer to more effectively absorb and disperse the rebounding energy and improve the buffering efficiency.

[0029] Furthermore, through holes connected to their interiors are provided on the surfaces of the connecting cylinders.

[0030] Beneficial effects: When the body fluid of the patient enters the interior of the connecting cylinder through the through holes, it can wet the buffer layer, and the wetted buffer layer can better transmit and disperse the rebounding energy of the stretching spring. This helps to optimize the energy transmission path, reduce the loss and dispersion of energy during the transmission process, and thus improve the buffering efficiency of the entire device.

[0031] Furthermore, the initial length of the stretching spring is 0.5 - 2 cm.

[0032] Beneficial effects: That is, within this initial length range, the stretching spring can quickly respond when subjected to external forces and provide a stable traction effect. At the same time, the shorter stretching spring makes the entire device more compact, facilitating operation in a narrow surgical space, which helps to reduce interference during the operation and improve the accuracy and safety of the operation.

[0033] Furthermore, the fillers inside the buffer layer are all spherical structures.

[0034] Beneficial effects: Through the spherical structure, when the tension spring is stretched (i.e., the metal clip is fixed), it is convenient for the tension spring to quickly respond to the external force and stretch. At the same time, when the overall weight of the device is reduced to facilitate the operation of the doctor, it can ensure that when the tension spring rebounds and resets, the internal filler of the buffer layer plays a sufficient role in buffering and dispersing the energy of the tension spring.

[0035] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is an overall axonometric view of an embodiment of the endoscopic auxiliary traction device for the department of gastroenterology of the present invention;

[0037] Figure 2 is an overall top view of an embodiment of the endoscopic auxiliary traction device for the department of gastroenterology of the present invention;

[0038] Figure 3 is a front cross-sectional view of the buffer assembly of an embodiment of the endoscopic auxiliary traction device for the department of gastroenterology of the present invention.

[0039] Reference numerals in the accompanying drawings of the specification include: 1, metal clip; 2, ball hinge seat; 3, connecting cylinder; 4, protection tube; 5, tension spring; 6, compression spring; 7, buffer plate; 8, buffer layer; 9, isolation plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0042] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] The following is a further detailed description through specific embodiments:

[0044] Embodiment 1:

[0045] As shown in Figure 1 、 Figure 2 and Figure 3 : An endoscopic-assisted traction device for the department of gastroenterology, including two metal clips 1. Anti-slip patterns are provided on the surfaces of the clip arms of the metal clip 1 to increase the friction between the clip arms of the metal clip 1 and the lesion tissue or the fixed position, so as to ensure that the metal clip 1 will not easily slip off due to external forces during the operation. It also includes a tension spring 5. The initial length of the tension spring 5 is set to 0.5 - 2 cm, and the specific length can be determined according to the body types of different patients, that is, to ensure that this device is convenient for doctors to operate in the narrow space inside the patient's body and can also play a crucial traction role, reducing interference during the operation and improving the accuracy and safety of the operation. First, this device is operated according to the fixing steps of the traction device in the existing traction technology through two metal clips 1 and a tension spring 5. One metal clip 1 is fixed at the edge of the lesion of a gastroenterology patient, and then the other metal clip 1 is fixed at other normal tissues. The two metal clips 1 are connected by a tension spring 5. Thus, through the elastic characteristics of the tension spring 5, the edge of the patient's lesion is pulled up, so that the lesion area exposed in the doctor's field of vision is increased, and at the same time, the doctor's surgical operation space is also increased, so as to increase the efficiency of the operation and improve the treatment effect.

[0046] When fixing the metal clip 1, since it needs to be carried out inside the patient's body and the internal environment space of the patient is narrow, when selecting a suitable fixing position for the metal clip 1, it is inevitable that the tension spring 5 will be twisted to adjust the angle of the metal clip 1. The twisted tension spring 5 will not only reset after the external force disappears and cause damage to the fixed position of the normal tissue by rotating the metal clip 1, but also affect the performance of the tension spring 5 and the traction effect. Therefore, rotating components for adjusting the angle between the metal clip 1 and the tension spring 5 are provided on the side surfaces of the metal clip 1. The rotating components each include a ball hinge seat 2 fixed on the side surface of the metal clip 1. Through the setting of the ball hinge seat 2, the tension spring 5 will not be twisted when the two metal clips 1 rotate relative to each other, so as not to affect its own performance, thereby ensuring the good traction effect of this device.

[0047] Regarding the problems in the prior art that when the elastic component rebounds, the metal clip 1 hits the patient's normal tissue due to inertia and the excised lesion tissue falls off the metal clip 1.

[0048] Specifically, buffer components for buffering the rebound of the tension spring 5 are installed on the rotating components, and both ends of the tension spring 6 are fixedly connected to the two buffer components respectively. Each buffer component includes a connecting cylinder 3 integrally formed on the ball hinge seat 2. A buffer plate 7 is arranged inside the connecting cylinder 3, and the buffer plate 7 is slidably matched with the inner wall of the connecting cylinder 3. At the same time, a buffer layer 8 is arranged inside the connecting cylinder 3, so that when the buffer plate 7 is affected by the restoring force of the tension spring 5, it can move more smoothly inside the connecting cylinder 3 and squeeze the buffer layer 8 to more effectively absorb and disperse the rebound energy of the tension spring 5. One end of the tension spring 5 is bonded to the center position of the bottom of the buffer plate 7. Among them, the buffer layer 8 is filled with one of silica gel foam, foam and memory foam, and the fillers inside the buffer layer 8 are all spherical structures. By setting the fillers inside the buffer layer 8 into spherical structures, it can not only enable the tension spring 5 to respond quickly and stretch under the action of an external force (when the doctor makes a fixation), but also ensure that when the overall weight of the device is reduced for the convenience of the doctor's operation, when the tension spring 5 rebounds and resets, the fillers inside the buffer layer 8 can play a sufficient buffering role on the tension spring 5 and disperse its energy. The top of the buffer layer 8 is bonded to the inner top wall of the connecting cylinder 3, the bottom of the buffer layer 8 is bonded to the top of the buffer plate 7, and a number of compression springs 6 are circularly arrayed and bonded to the bottom edge position of the buffer plate 7, and the other ends of the compression springs 6 are bonded to the inner bottom wall of the connecting cylinder 3. When the tension spring 5 stretches, it will drive the buffer plate 7 to squeeze the compression springs 6. Therefore, after the lesion is excised, when the tension spring 5 rebounds, the compression springs 6 will also reset, thereby driving one end of the buffer plate 7 and the tension spring 5 to move, playing a certain limiting role on the rebound and reset speed of the tension spring 5. At the same time, during the reset process of the buffer plate 7, it will squeeze the buffer layer 8, thereby further slowing down the rebound and reset speed of the tension spring 5, maintaining the stability of the traction system, preventing the lesion tissue from accidentally falling off the metal clip 1 and preventing the metal clip 1 from hitting the normal tissue and causing damage to it.

[0049] During the above process, when the tension spring 5 expands and contracts, it may come into contact with the surrounding tissues, thus posing a potential risk of scratching or stabbing. To further reduce this risk, a protective tube 4 is sleeved around the tension spring 5 along its length direction. Both ends of the protective tube 4 are bonded to the two connecting cylinders 3 respectively, and at the same time, it is ensured that the protective tube 4 will not affect the movement of the tension spring 5. Therefore, the protective tube 4 is made of rubber material. The rubber material protective tube 4 has certain elasticity and flexibility, and can provide additional buffering when the spring moves, further reducing the harm to the surrounding tissues.

[0050] Example 2:

[0051] The difference from Example 1 is that, as Figure 3 shown, an isolation plate 9 that is integrally formed at the bottom of the buffer plate 7 and sleeved on the tension spring 5 is used to effectively isolate the tension spring 5 from the compression spring 6 at the bottom of the buffer plate 7, preventing direct contact and potential interference between the two. Thus, the buffer plate 7 and the buffer layer 8 are used to slow down the rebound speed of the tension spring 5 while maintaining the independence and stability of the compression spring 6. And through the reset movement of the compression spring 6, the tension spring 5 and the buffer plate 7 can effectively squeeze the buffer layer 8, and then the rebound energy is absorbed by the buffer layer 8 to reduce the impact risk of the metal clip 1 on normal tissues.

[0052] Example 3:

[0053] The difference from Example 2 is that, as Figure 3 shown, through holes connected to its interior are opened on the surface of the connecting cylinder 3. When the liquid in the patient's body enters the interior of the connecting cylinder 3 through the through holes, the buffer layer 8 is wetted through the gap between the buffer plate 7 and the connecting cylinder 3. The wetted buffer layer 8 can better transfer and disperse the rebound energy of the tension spring 5, which helps to optimize the energy transfer path, reduce energy loss and dispersion during the transfer process, and thus improve the buffer efficiency of the entire device.

[0054] Obviously, the above examples are only for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. An endoscopic assisted traction device for gastroenterology, comprising two metal clips (1), characterized in that: It also includes a tension spring (5), and the side surface of the metal clip (1) is provided with a rotating assembly for adjusting the angle between the metal clip (1) and the tension spring (5), and a buffer assembly for buffering the tension spring (5) when it rebounds is installed on the rotating assembly, and the two ends of the spring are respectively fixedly connected to the two buffer assemblies; The buffer components all include a connecting tube (3) fixedly connected to the rotating component, a buffer plate (7) is arranged inside the connecting tube (3), one end of a tension spring (5) is fixedly connected to the bottom center position of the buffer plate (7), a buffer layer (8) is arranged inside the connecting tube (3), the top of the buffer layer (8) is bonded to the inner top wall of the connecting tube (3), the bottom of the buffer layer (8) is bonded to the top of the buffer plate (7), a plurality of compression springs (6) are fixed in a circular array at the bottom edge of the buffer plate (7), and the other ends of the compression springs (6) are fixedly connected to the inner bottom wall of the connecting tube (3).

2. The endoscopic assisted traction device for gastroenterology according to claim 1, characterized in that: The rotating components all include a ball joint seat (2) fixed to the side surface of the metal clamp (1), and the end of the connecting tube (3) away from the spring is fixedly connected to the ball joint seat (2).

3. The endoscopic assisted traction device for gastroenterology according to claim 2, characterized in that: An isolation plate (9) which is sleeved on the tension spring (5) is arranged at the bottom of the buffer plate (7).

4. The endoscopic assisted traction device for gastroenterology according to claim 3, characterized in that: The buffer layer (8) is filled with one of silica gel foam, foam and memory foam.

5. The endoscope-assisted traction device for gastroenterology according to claim 4, characterized in that: A protective tube (4) is sleeved around the tension spring (5) along its length direction, and two ends of the protective tube (4) are respectively bonded to two connecting tubes (3), and the protective tube (4) is made of rubber material.

6. The endoscopic assisted traction device for gastroenterology according to claim 5, characterized in that: The surfaces of the clamp arms of the metal clamp (1) are all provided with anti-slip grooves.

7. The endoscopic assisted traction device for gastroenterology according to claim 6, characterized in that: The buffer plates (7) are slidably matched with the inner wall of the connecting tube (3).

8. The endoscope-assisted traction device for gastroenterology according to claim 7, characterized in that: The surface of the connecting cylinder (3) is provided with through holes connected to the interior thereof.

9. The endoscopic assisted traction device for gastroenterology according to claim 8, characterized in that: The initial length of the tension spring (5) is 0.5-2 cm.

10. The endoscopic assisted traction device for gastroenterology according to claim 9, characterized in that: The fillings inside the buffer layer (8) are all spherical structures.

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