Endoscopic foreign body grabbing and safe taking-out device

Abstract

The application discloses an endoscope foreign body grabbing and safe taking-out device, and belongs to the technical field of endoscope medical instruments. The device comprises an operating assembly, a connecting assembly, a catheter assembly and a universal adjusting assembly. The operating assembly is internally provided with a negative pressure pump and an inflation pump, and is provided with a foreign body collecting groove with a negative pressure hole and an inflation hole. A partition air bag is arranged at the tail end of the inflation hole. The foreign body is adsorbed by negative pressure and is closed and stored by the air bag. The catheter assembly adopts a double-layer structure, and is provided with a universal adjusting assembly at the tail end, so that multi-dimensional accurate steering can be realized. A probe and a lamp holder are respectively arranged at the distal end of the outer catheter and in the foreign body collecting groove, so that visual operation can be realized throughout the whole process. The multiple groups of cross-arranged negative pressure holes and inflation holes in the foreign body collecting groove can adsorb and continuously store foreign bodies in sections. The device has the advantages of stable grabbing, no foreign body exposure, low risk of mucosa damage, adaptation to narrow and curved cavities, convenient operation, high operation efficiency, detachable components, easy cleaning and disinfection, and suitability for safe taking-out of smooth and irregular foreign bodies in the digestive tract under the endoscope.

Description

Technical Field

[0001] This invention relates to a foreign body removal device, and more particularly to an endoscopic foreign body grasping and safe removal device. Background Technology

[0002] Currently, there are three main types of endoscopic foreign body removal devices for the digestive tract. One type is wire-formed devices, such as snares or baskets; another type is grasping devices, such as grasping forceps, three-jaw pliers, and four-jaw pliers; and the third type is electromagnet-based foreign body suction devices. More than 95% of digestive tract foreign bodies can be directly removed endoscopically. However, for polyps removed endoscopically, as well as irregularly shaped, smooth-surfaced, or hard foreign bodies, the small gripping contact area and insufficient friction make them prone to loosening or slipping during traction and removal, leading to failed grasping. Even after grasping the foreign body, it often becomes eccentric or deflected during the withdrawal of the endoscope, causing its sharp edges to directly scrape the esophageal and gastrointestinal mucosa, resulting in bleeding, perforation, or mucosal tearing. Furthermore, some existing grasping and safe removal devices lack operational flexibility, making it difficult to remove foreign bodies from special locations such as the upper esophagus, and hindering flexible operation in complex cavity environments. Summary of the Invention

[0003] The present invention aims to provide an endoscopic foreign body grasping and safe removal device to solve the problem of how to flexibly remove foreign bodies while avoiding foreign bodies scraping against the esophagus and gastrointestinal mucosa.

[0004] To achieve the above objectives, the specific plan is as follows:

[0005] An endoscopic foreign body grasping and safe removal device includes an operating component, a catheter assembly detachably disposed at one end of the operating component, a connecting component for assembling the operating component and the catheter assembly, and a universal adjustment component disposed at the end of the catheter assembly.

[0006] The operating components include a mounting block and a fixing tube located at the bottom of the mounting block. The mounting block has a fixing groove, and a negative pressure pump and an air pump are installed in the fixing groove. The fixing tube has a negative pressure hole and an air inflation hole in its inner wall. A foreign matter collection groove is located in the middle of the fixing tube, and a first external thread is provided on the outer wall of the fixing tube. The negative pressure hole and the air inflation hole are connected to the fixing groove. The pipes of the negative pressure pump and the air inflation pump are connected to the foreign matter collection groove through the negative pressure hole and the air inflation hole, respectively. The air inflation hole is located below the negative pressure hole, and an isolation device is provided at the end of the air inflation hole.

[0007] The connecting assembly includes a connecting section and a snap-fit ​​section. One end of the connecting section is provided with a first connecting groove, and the inner wall of the first connecting groove is provided with a first internal thread. The other end of the connecting section is provided with a second connecting groove, and a first through hole is provided in the middle of the connecting section. The snap-fit ​​section is provided on the groove wall of the second connecting groove and is composed of several elastic plates. The several elastic plates are arranged around the second connecting groove, and the outer wall of the elastic plates is provided with a second external thread. The connecting assembly and the operating assembly are connected through the first internal thread and the first external thread.

[0008] The conduit assembly includes an outer conduit and an inner conduit. One end of the inner conduit extends out of the outer conduit and is located in the second connecting groove. One end of the outer conduit is provided with a rotating bearing. An adjusting nut is integrally connected to one end of the rotating bearing, and the inner wall of the adjusting nut is provided with a second internal thread. The end of the outer conduit away from the rotating bearing is provided with an installation groove. The conduit assembly and the connecting assembly are connected by the second internal thread and the second external thread.

[0009] The universal adjustment component is located in the mounting slot and is connected to the outer wall of the inner guide tube.

[0010] Furthermore, the universal adjustment assembly includes several universal ball joints, adjustment servos, cables, and end ball joints. The universal ball joints have a second through hole inside. Several universal ball joints are sequentially spliced ​​to form the main body of the universal adjustment assembly. The outer wall of the universal ball joints has six universal rings. Several adjustment servos are located in the mounting slots. One end of the cable is connected to the power end of the adjustment servo, and the rest extends out of the mounting slot and passes through the universal rings. The end of the cable is connected to the end ball joint.

[0011] Furthermore, a handle is provided at one end of the mounting block.

[0012] Furthermore, a splash guard is installed on the negative pressure hole.

[0013] Furthermore, the foreign object collection tank is equipped with several cross-shaped negative pressure holes and air inlets.

[0014] Furthermore, the isolation device is a layered airbag.

[0015] Furthermore, the end of the external conduit is equipped with a first probe and a first lamp head.

[0016] Furthermore, the foreign object collection tank is equipped with several second probes and several second lamp heads.

[0017] Furthermore, the external conduit is made of polyvinyl chloride, silicone, or TPU.

[0018] A safe method for endoscopic removal of foreign bodies includes the following steps:

[0019] S1, Endoscopic insertion and positioning: The catheter assembly is inserted into the digestive tract along with the endoscope, and the angle of the distal end of the catheter is adjusted with the help of the universal adjustment assembly to align with the foreign object.

[0020] S2, negative pressure suction of foreign objects: Start the negative pressure pump to create negative pressure in the foreign object collection tank through the negative pressure hole, and suck the foreign object into the collection tank;

[0021] S3, segmented sealing anti-slip: After a foreign object enters, start the air pump and inflate the isolation device through the corresponding air inlet to seal the foreign object in the collection tank; if it is necessary to continuously remove foreign objects, multiple sets of negative pressure holes and air inlets can be activated sequentially from top to bottom.

[0022] S4, safe removal of the scope: After the foreign object is completely sealed and stored, maintain negative pressure and a closed state, and slowly remove the scope; the foreign object is wrapped in the collection tank with no sharp edges exposed, avoiding scratching the esophagus and gastrointestinal mucosa.

[0023] S5, Postoperative care: After the device is removed from the body, turn off the pump, release the diaphragm airbag, and remove the foreign object; disassemble each component, clean, disinfect, and keep them ready for use.

[0024] In summary, the present invention has the following advantages over the prior art:

[0025] (1) A negative pressure pump is used in conjunction with a full-area negative pressure hole to form a large-area adsorption, replacing the traditional single-point clamping method. It can stably adsorb smooth, irregular and hard foreign objects. Combined with the partition airbag for sealing and fixing, it forms a double locking of "adsorption + sealing", which greatly reduces the probability of foreign objects slipping during the pulling and lens removal process and significantly improves the success rate of removal in one go.

[0026] (2) The foreign body is completely contained in the foreign body collection tank and sealed by the partition air bag. When the endoscope is withdrawn, the foreign body has no sharp edges exposed and does not come into direct contact with the digestive tract mucosa. This avoids complications such as mucosal tearing, bleeding and perforation caused by foreign body scratching and puncturing, and greatly improves the safety of the operation.

[0027] (3) The catheter tip adopts a multi-section universal ball joint + six-way cable + adjustable servo motor drive structure, which can be flexibly deflected up and down, left and right, and diagonally, and can accurately target the upper part of the esophagus, the curved and narrow parts that are difficult to operate with conventional instruments, significantly reducing the difficulty of foreign body removal.

[0028] (4) Multiple sets of negative pressure holes and air holes are arranged in a cross pattern in the foreign body collection tank. It can be adsorbed and sealed in sections from top to bottom. Multiple foreign bodies can be collected continuously in a single insertion of the endoscope without repeated withdrawal of the endoscope, which greatly shortens the operation time and reduces patient pain and anesthesia risk.

[0029] (5) The distal end of the external catheter is equipped with a first probe and a first lamp head, and the foreign body collection tank is equipped with a second probe and a second lamp head, so that the entire process of "intracavitary positioning - foreign body aspiration - closed storage" can be visualized in real time. Doctors can clearly judge the status of the foreign body and the storage effect, reducing blind spots and the risk of misoperation. Attached Figure Description

[0030] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0031] Figure 1 This is a schematic diagram of the overall structure of the endoscopic foreign body grasping and safe removal device.

[0032] Figure 2 A cross-sectional view of an endoscopic foreign body retrieval and safe removal device;

[0033] Figure 3 This is a magnified view of a portion of point A;

[0034] Figure 4 This is a magnified view of a portion of point B.

[0035] Figure 5 This is a magnified view of a portion at point C;

[0036] Figure 6 An exploded view of an endoscopic foreign body retrieval and safe removal device.

[0037] The above figures include the following reference numerals:

[0038] 1. Operating components; 11. Mounting block; 111. Fixing groove; 112. Handle; 12. Fixing tube; 121. Negative pressure hole; 1211. Splash screen; 122. Inflation hole; 123. Collection groove; 1231. Second lamp holder; 1232. Second probe; 124. First external thread; 2. Connecting components; 21. Connecting section; 211. First connecting groove; 2111. First internal thread; 212. Second connecting groove; 213. First through hole; 22. 1. Clip section; 3. Conduit assembly; 31. Outer conduit; 311. Rotary bearing; 312. Adjusting nut; 3121. Second internal thread; 313. Mounting slot; 314. First lamp holder; 315. First probe; 32. Inner conduit; 4. Universal adjustment assembly; 41. Universal ball joint; 411. Second through hole; 412. Universal ring; 42. Adjustment servo; 43. Cable; 44. End ball joint; 5. Negative pressure pump; 6. Air pump; 7. Isolation device. Detailed Implementation

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0040] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments of the invention. As used herein, the singular form may also include the plural form unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0041] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0042] See Figures 1-6 This embodiment provides an endoscopic foreign body grasping and safe removal device (hereinafter referred to as the removal device). The device adopts an integrated design of negative pressure suction, closed storage and universal guidance, which replaces the traditional clamping and snare methods and solves problems such as easy slippage of foreign bodies, eccentric scraping of mucosa and difficulty in operation in special areas.

[0043] The device mainly consists of four parts: operating component 1, connecting component 2, conduit component 3, and universal adjustment component 4. Each component can be disassembled and assembled, making it easy to clean, disinfect and replace consumables.

[0044] Similar to existing technologies, this removal device includes an operating component 1, a catheter assembly 3 detachably disposed at one end of the operating component 1, and a retrieval component. Unlike existing technologies, the retrieval component of this removal device is disposed within the operating component 1, and it generates negative pressure via a negative pressure pump 5 to aspirate the foreign object (the negative pressure pump 5 directly aspirates the foreign object through negative pressure). Furthermore, this removal device also includes a connecting component 2 for connecting the operating component 1 and the catheter assembly 3, and a universal adjustment component 4 for controlling the angle of the catheter assembly 3, wherein:

[0045] The operating component 1 includes a mounting block 11 and a fixing tube 12 located at the bottom of the mounting block 11. The mounting block 11 has a fixing groove 111 for housing a negative pressure pump 5 and an air pump 6. The fixing tube 12 has a negative pressure hole 121 and an air inlet 122 inside its wall, a foreign object collection groove 123 in the middle, and a first external thread 124 on its outer wall. The negative pressure hole 121 and the air inlet 122 connect to the fixing groove 111. The pipes of the negative pressure pump 5 and the air pump 6, located in the fixing groove 111, are connected to the foreign object collection groove 123 through the negative pressure hole 121 and the air inlet 122, respectively. Furthermore, the air inlet 122 is located below the negative pressure hole 121, and its end is connected to a partition airbag. In use, the negative pressure pump 5 creates a negative pressure environment, drawing foreign objects into the foreign object collection groove 123. The partition airbag then seals the foreign objects within the foreign object collection groove 123, thus completing the foreign object removal operation.

[0046] The connecting assembly 2 includes a connecting section 21 and a snap-fit ​​section 22. One end of the connecting section 21 is provided with a first connecting groove 211, and the inner wall of the first connecting groove 211 is provided with a first internal thread 2111 that matches the first external thread 124, for connecting the operating assembly 1 and the connecting assembly 2. The other end of the connecting section 21 is provided with a second connecting groove 212 for fixing the conduit assembly 3. A first through hole 213 is provided in the middle of the connecting section 21, and the diameter of the first through hole 213 is the same as that of the foreign matter collection groove 123.

[0047] The snap-fit ​​section 22 is located on the groove wall of the second connecting groove 212 and is composed of several elastic pieces. The elastic pieces are arranged around the second connecting groove 212, and the outer wall surface of the elastic pieces is provided with a second external thread.

[0048] The conduit assembly 3 includes an outer conduit 31 and an inner conduit 32. One end of the outer conduit 31 is provided with a rotating bearing 311. An adjusting nut 312 is integrally connected to one end of the rotating bearing 311. The inner wall of the adjusting nut 312 is provided with a second internal thread 3121, which matches a second external thread. The two threads are connected by a thread, thereby fixing the outer conduit 31 to the connecting assembly 2. The end of the inner conduit 32, located inside the outer conduit 31, passes through the adjusting nut 312 of the outer conduit 31 and ultimately abuts against the second connecting groove 212. The pressure exerted by the adjusting nut 312 on the elastic plate further secures the inner conduit 32 to the connecting assembly 2. Additionally, the end of the outer conduit 31 furthest from the rotating bearing 311 is provided with an installation groove 313.

[0049] The universal adjustment component 4 is located in the mounting groove 313 and is connected to the outer wall of the inner conduit 32, thereby realizing the angle adjustment of the conduit component 3.

[0050] As a preferred embodiment, the universal adjustment assembly 4 comprises several universal ball joints 41, adjustment servos 42, cables 43, and end ball joints 44. Each universal ball joint 41 has a second through hole 411 inside. Several universal ball joints 41 are sequentially assembled to form the main body of the universal adjustment assembly 4. The outer wall of each universal ball joint 41 has six universal rings 412. Several adjustment servos 42 are housed in mounting slots 313. One end of the cable 43 is connected to the power end of the adjustment servo 42, and the remaining portion extends from the mounting slots 313, passes through the universal rings 412, and its end is connected to the end ball joint 44. Furthermore, the universal adjustment assembly 4 is connected to the operating assembly 1 via wiring. The control assembly includes a wireless control module, which allows control of the universal adjustment assembly 4 to be achieved by connecting to a remote control device (such as a computer) via wireless transmission. When the universal adjustment assembly 4 is adjusted by controlling the control device, the six adjustment servos 42 will retract the corresponding cables 43. Under the pull of the cables 43, the universal ball joint 41 and the end ball joint 44 will rotate, thereby driving the inner tube to rotate, thus realizing the angle adjustment of the inner tube.

[0051] As a preferred option, to facilitate the use of this device by medical staff, one end of the mounting block 11 is provided with a handle 112, which is ergonomic and facilitates stable operation with one hand.

[0052] As a preferred option, in order to prevent foreign objects from entering the negative pressure pump 5, a splash guard 1211 is provided on the negative pressure hole 121 to effectively intercept debris and protect the pump body.

[0053] As a preferred embodiment, the foreign object collection tank 123 is provided with several cross-arranged negative pressure holes 121 and air inlets 122 to achieve continuous collection of foreign objects. In use, the negative pressure holes 121 and air inlets 122 are used sequentially from top to bottom. That is, after each foreign object is adsorbed, air is introduced through the air inlets 122 to seal a portion of the foreign object collection tank 123, preventing the foreign object from leaking out; then, the lower negative pressure holes 121 are used for foreign object adsorption. After the foreign object is sucked in, the lower air inlets 122 are used to seal this area. This operation is repeated cyclically to achieve continuous removal of foreign objects.

[0054] As a preferred embodiment, the end of the external catheter 31 is provided with a first probe 315 and a first lamp head 314 for real-time acquisition of images of foreign objects in the digestive tract to assist medical staff in performing surgical procedures.

[0055] As a preferred embodiment, the foreign body collection slot 123 is equipped with several second probes 1232 and several second lamp heads 1231 to determine whether a foreign body has entered the foreign body collection cavity, so that medical staff can understand the operation status of the device in real time and improve surgical efficiency.

[0056] As a preferred option, the external catheter 31 is made of medical polymer materials such as polyvinyl chloride, silicone, and TPU, which combine rigidity and flexibility to adapt to the digestive tract environment.

[0057] Workflow (Complete Operation Steps):

[0058] S1, Preoperative preparation: Assemble the components of the device in sequence: Operation component 1 → Connection component 2 → Catheter component 3, and confirm that the threads are tightened and the tubing is unobstructed; turn on the negative pressure pump 5, the air pump 6 and each probe and lamp head, and complete the self-test.

[0059] S2, Endoscopic insertion and positioning: The catheter assembly 3 is inserted into the digestive tract along with the endoscope. The first probe 315 and the first lamp head 314 are used for real-time observation. The angle of the distal end of the catheter is adjusted with the help of the universal adjustment assembly 4 to align with the foreign object.

[0060] S3, negative pressure suction of foreign objects: start the negative pressure pump 5, and form a negative pressure in the foreign object collection tank 123 through the negative pressure hole 121 to suck the foreign object into the collection tank; the second probe 1232 confirms the foreign object entry status in real time.

[0061] S4, segmented sealing to prevent slippage: After a foreign object enters, the air pump 6 is started, and air is inflated into the partition airbag through the corresponding air inlet 122 to seal the foreign object in the collection tank; if it is necessary to continuously remove foreign objects, multiple sets of negative pressure holes and air inlets can be activated from top to bottom to achieve segmented storage without interference.

[0062] S5, safe removal of the scope: After the foreign object is completely sealed and stored, maintain negative pressure and a closed state, and slowly remove the scope; the foreign object is wrapped in the collection tank with no sharp edges exposed, avoiding scratching the esophagus and gastrointestinal mucosa.

[0063] S6, Postoperative care: After the device is removed from the body, turn off the pump, release the diaphragm airbag, and remove the foreign object; disassemble each component, clean, disinfect, and keep them ready for use.

[0064] Additional notes:

[0065] This device is suitable for small foreign objects that are spherical, smooth, hard, and difficult to remove with conventional clamps; however, it is less suitable for removing large, sharp foreign objects such as fish bones.

[0066] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0067] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0068] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An endoscopic foreign body grasping and safe removal device, comprising an operating component (1) and a catheter assembly (3) detachably disposed at one end of the operating component (1), characterized in that, It also includes an assembly operation component (1) and a connection component (2) for the conduit assembly (3), and a universal adjustment component (4) located at the end of the conduit assembly (3); The operating component (1) includes a mounting block (11) and a fixing tube (12) located at the bottom of the mounting block (11). The mounting block (11) has a fixing groove (111) inside, and a negative pressure pump (5) and an air pump (6) are installed in the fixing groove (111). The fixing tube (12) has a negative pressure hole (121) and an air inlet (122) inside its wall. A foreign object collection groove (123) is located in the middle of the fixing tube (12). The outer wall surface is provided with a first external thread (124); the negative pressure hole (121) and the air inlet (122) are connected to the fixed groove (111); the pipes of the negative pressure pump (5) and the air pump (6) are respectively connected to the foreign matter collection groove (123) through the negative pressure hole (121) and the air inlet (122); the air inlet (122) is located below the negative pressure hole (121), and the end of the air inlet (122) is provided with an isolation device (7); The connecting component (2) includes a connecting section (21) and a snap-fit ​​section (22). One end of the connecting section (21) is provided with a first connecting groove (211), and the inner wall of the first connecting groove (211) is provided with a first internal thread (2111). The other end of the connecting section (21) is provided with a second connecting groove (212), and the middle position of the connecting section (21) is provided with a first through hole (213). The snap-fit ​​section (22) is provided on the groove wall of the second connecting groove (212) and is composed of several elastic pieces. The several elastic pieces are arranged around the second connecting groove (212), and the outer wall of the elastic pieces is provided with a second external thread. The connecting component (2) is connected to the operating component (1) through the first internal thread (2111) and the first external thread (124). The conduit assembly (3) includes an outer conduit (31) and an inner conduit (32). One end of the inner conduit (32) extends out from the outer conduit (31) and is disposed in the second connecting groove (212). One end of the outer conduit (31) is provided with a rotating bearing (311). An adjusting nut (312) is integrally connected to one end of the rotating bearing (311), and the inner wall surface of the adjusting nut (312) is provided with a second internal thread (3121). The end of the outer conduit (31) away from the rotating bearing (311) is provided with an installation groove (313). The conduit assembly (3) and the connecting assembly (2) are connected by the second internal thread (3121) and the second external thread. The universal adjustment component (4) is located in the mounting groove (313) and is connected to the outer wall of the inner guide tube (32).

2. The endoscopic foreign body grasping and safe removal device according to claim 1, characterized in that, The universal adjustment assembly (4) includes several universal ball joints (41), adjustment servos (42), cables (43), and end ball joints (44). The universal ball joints (41) have a second through hole (411) inside. Several universal ball joints (41) are sequentially spliced ​​to form the main body of the universal adjustment assembly (4). The outer wall of the universal ball joints (41) has six universal rings (412). Several adjustment servos (42) are located in the mounting groove (313). One end of the cable (43) is connected to the power end of the adjustment servo (42), and the rest extends out from the mounting groove (313) and passes through the universal rings (412). The end of the cable (43) is connected to the end ball joint (44).

3. The endoscopic foreign body grasping and safe removal device according to claim 1, characterized in that, One end of the mounting block (11) is provided with a handle (112).

4. The endoscopic foreign body grasping and safe removal device according to claim 1, characterized in that, The negative pressure hole (121) is provided with a splash guard (1211).

5. The endoscopic foreign body grasping and safe removal device according to claim 1, characterized in that, The foreign object collection groove (123) is provided with a number of cross-arranged negative pressure holes (121) and air filling holes (122).

6. The endoscopic foreign body grasping and safe removal device according to claim 1, characterized in that, The isolation device (7) is a layered airbag.

7. The endoscopic foreign body grasping and safe removal device according to claim 1, characterized in that, The end of the external conduit (31) is provided with a first probe (315) and a first lamp head (314).

8. The endoscopic foreign body grasping and safe removal device according to claim 1, characterized in that, The foreign object collection tank (123) is equipped with several second probes (1232) and several second lamp heads (1231).

9. The endoscopic foreign body grasping and safe removal device according to claim 1, characterized in that, The external catheter (31) is made of polyvinyl chloride, silicone or TPU.

10. A method for safely removing endoscopic foreign bodies, used in the endoscopic foreign body grasping and safe removal device according to any one of claims 1 to 9, comprising the steps of: S1, Endoscopic insertion and positioning: The catheter assembly (3) is inserted into the digestive tract along with the endoscope, and the distal angle of the catheter is adjusted with the help of the universal adjustment assembly (4) to align with the foreign object; S2, negative pressure suction of foreign objects: start the negative pressure pump (5), and form a negative pressure in the foreign object collection tank (123) through the negative pressure hole (121) to suck the foreign object into the collection tank; S3, segmented sealing and anti-slip: after foreign objects enter, start the air pump (6) and inflate the isolation device (7) through the corresponding air inlet (122) to seal the foreign objects in the collection tank; if it is necessary to continuously remove foreign objects, multiple sets of negative pressure holes (121) and air inlets (122) can be activated from top to bottom in sequence. S4, safe removal of the scope: After the foreign object is completely sealed and stored, maintain negative pressure and a closed state, and slowly remove the scope; the foreign object is wrapped in the collection tank with no sharp edges exposed, avoiding scratching the esophagus and gastrointestinal mucosa. S5, Postoperative care: After the device is removed from the body, turn off the pump, release the diaphragm airbag, and remove the foreign object; disassemble each component, clean, disinfect, and keep them ready for use.

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