Recoverer for polyp cut by gastrointestinal endoscope

By designing a gastroenteroscopic polyp retrieval device combining electric telescopic rods, movable plates and silicone recycling capsules, the problem of lesions slipping and incomplete removal in the prior art is solved, and the complete collection and safe removal of lesions are achieved, and diagnostic accuracy and work efficiency are improved.

CN120053019AInactive Publication Date: 2025-05-30BAISE PEOPLES HOSPITAL
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202510197476.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2025-05-30
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

When executing polyps, it is difficult to ensure the integrity and safety of the lesions when excising polyps, especially in the case of "major lesions", the lesions tend to slip or cannot be completely removed, which affects the pathological diagnosis and work efficiency.

Method used

A gastroenteroscopic polyp resection retrieval device is designed, using a combined structure of electric telescopic rod, movable plate, oblique rod, long rod, bump, short rod and silicone recovery capsule. Through the push of the electric telescopic rod, the long rod belt bump and short rod interact, open the silicone recovery capsule to ensure that the lesions are completely collected.

Benefits of technology

The complete collection and safe removal of the lesions is achieved, avoiding the lesions slip and damage, and improving the accuracy and work efficiency of pathological diagnosis.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120053019A_ABST
    Figure CN120053019A_ABST
Patent Text Reader

Abstract

The invention belongs to the technical field of medical instruments, and discloses a gastrointestinal endoscope polyp resection recoverer which comprises a placing block, a supporting plate is fixedly connected to the top end of the interior of the placing block in a sleeving mode, and an electric telescopic rod is fixedly installed at the top end of the supporting plate. By arranging a movable plate, an inclined rod, a first short rod, a second short rod and a silica gel recycling bag, after an electric telescopic rod is started, the movable plate drives one end of the inclined rod to move downwards, so that the other end of the inclined rod generates thrust on a long rod, and the long rod is driven to move; the two long rods are pushed to drive the protruding blocks to move back to back along the outer surface of the limiting rod, the protruding blocks are hinged to the first short rod and the second short rod, and the first short rod and the second short rod are hinged to each other, so that the silica gel recycling bag deforms and is opened under the action of the protruding blocks, the first short rod and the second short rod; therefore, the resected lesion can be completely collected into the silica gel recovery bag through the silica gel recovery bag.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and specifically relates to a gastrointestinal endoscope polyp resection recovery device. Background Art

[0002] "Digestive tract lesions" refer to epithelial lesions of the digestive tract (such as polyps, adenomas, early digestive tract cancers, etc.) and submucosal lesions (such as stromal tumors, leiomyomas, lipomas, etc.), and can be treated by endoscopic resection.

[0003] "Small lesions": The diameter of the lesion is <0.5 cm. After resection, it can be aspirated out of the body through the biopsy channel of the digestive endoscope by suction. At the same time, a gauze is used to block and filter at the suction pipe orifice to obtain the lesion specimen for pathological examination. However, the specimen is often deformed or even fragmented by suction, affecting the pathological section sampling and thus the accuracy of pathological diagnosis; "Larger lesions": The diameter of the lesion is 0.6 cm - 3 cm. After resection, a snare is needed to trap the lesion or the endoscope continuously sucks the lesion against the biopsy orifice, and then the lesion is dragged out of the body together with the endoscope to obtain the lesion specimen for pathological examination. However, when withdrawing the endoscope, the lesion often easily slips off and falls into the digestive tract, and it is necessary to repeatedly trap or suck the lesion until it is withdrawn from the body, which is time-consuming and laborious and affects work efficiency; "Large lesions": The diameter of the lesion is >3 cm. After resection, a snare is used to trap the lesion or the endoscope continuously sucks the lesion and drags the lesion, but it is often impossible to take it out of the body through the cardia orifice, esophageal inlet or anal orifice. It is necessary to cut the lesion into small pieces to take it out of the body, which destroys the integrity of the lesion. The pathological section cannot identify the edge of the lesion, and the pathological diagnosis cannot judge the negativity or positivity of the resection margin. Clinically, it is impossible to evaluate whether the lesion has been completely resected. Therefore, a gastrointestinal endoscope polyp resection recovery device is needed to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a gastrointestinal endoscope polyp resection recovery device to solve the problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solution: A gastrointestinal endoscope polyp recovery device, including a placement block, at the top inside the placement block is fixedly sleeved with a support plate, at the top of the support plate is fixedly installed an electric telescopic rod, the bottom end of the electric telescopic rod penetrates through the support plate and extends to the bottom of the support plate and is fixedly installed with a movable plate, the outer surface of the movable plate is movably sleeved with the inner surface of the placement block, the top end of the movable plate is movably connected to the bottom end of the support plate, at the front side of the middle of the bottom end of the movable plate is hinged with an inclined rod, the number of the inclined rods is two, the other ends of the two inclined rods are respectively hinged with a long rod, the number of the long rods is two, at the bottom of the opposite surfaces of the two long rods are respectively fixedly installed with a convex block, the number of the convex blocks is two, the rear ends of the two convex blocks are respectively hinged with a first short rod and a second short rod, the first short rod and the second short rod are hinged to each other, the number of the first short rods and the second short rods is two and their shapes and sizes are the same, at the rear ends of the two first short rods and the second short rods are fixedly installed with a silicone recovery sac.

[0006] Preferably, inside the two long rods are movably sleeved with a limiting rod, the outer surface of the limiting rod is fixedly sleeved with the inner surface of the placement block, and filter holes are formed on the outer surface of the silicone recovery sac.

[0007] Preferably, at the top of the placement block is fixedly installed a rotating plate, at the top of the rotating plate is movably connected with a round block, the outer surface of the round block is movably sleeved with a digestive endoscope biopsy channel, and the bottom of the right side of the inner surface of the digestive endoscope biopsy channel is movably connected to the right end of the rotating plate.

[0008] Preferably, at the left side of the top of the rotating plate is fixedly installed a round shaft, the top end of the round shaft penetrates through the round block and extends to the inside of the round block and is fixedly sleeved with a driven gear, and the bottom end of the driven gear is movably connected to the bottom of the inner surface of the round block.

[0009] Preferably, at the right side of the top of the inner surface of the round block is fixedly installed a driving motor, at the other end of the output shaft of the driving motor is fixedly sleeved with a driving shaft, at the bottom of the outer surface of the driving shaft is fixedly sleeved with a driving gear, the outer surface of the driving gear is meshed with the outer surface of the driven gear, and the bottom end of the driving gear is movably connected to the bottom of the inner surface of the round block.

[0010] Preferably, at the bottom of the left side of the inner surface of the digestive endoscope biopsy channel is formed a positioning groove, inside the positioning groove is movably sleeved with a positioning block, and the outer surface of the positioning block is fixedly connected to the outer surface of the round block.

[0011] Preferably, a handle is movably sleeved on the left side of the bottom end of the round block. A long shaft is fixedly sleeved inside the handle. The top end of the long shaft penetrates through the round block and extends to the top of the round block and is fixedly sleeved with a rotating rod. The bottom end of the rotating rod is movably connected to the top end of the round block. A connecting rod is hinged to the right side of the top end of the rotating rod.

[0012] Preferably, a clamping groove located above the round block is formed on the right side of the inner surface of the biopsy channel of the digestive endoscope. A clamping block is movably sleeved inside the clamping groove. The bottom end of the clamping block is movably connected to the top end of the round block. The left end of the clamping block is hinged to the right end of the connecting rod.

[0013] Preferably, a T-shaped block is movably sleeved on the left end inside the clamping block. The bottom end of the T-shaped block is fixedly connected to the top end of the round block. A spring is fixedly installed at the right end of the T-shaped block. The other end of the spring is fixedly installed on the right inner wall of the clamping block.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. By providing a movable plate, an inclined rod, a first short rod, a second short rod and a silicone recovery sac, when the electric telescopic rod is started, the movable plate will drive one end of the inclined rod to move downward, so that the other end of the inclined rod will generate a thrust on the long rod, pushing the two long rods to drive the convex blocks to move away from each other along the outer surface of the limiting rod. Since the convex blocks are respectively hinged to the first short rod and the second short rod and the first short rod and the second short rod are hinged to each other, the silicone recovery sac will deform and open under the action of the convex blocks, the first short rod and the second short rod. In this way, the excised lesion can be completely collected into the silicone recovery sac through the silicone recovery sac.

[0016] 2. By providing a rotating plate, a round shaft, a driven gear, a driving motor and a driving gear, when the driving motor is started, the driving shaft will drive the driving gear to rotate. Since the outer surface of the driving gear is meshed with the outer surface of the driven gear, as the driving gear rotates, the driven gear will drive the round shaft to rotate, so that the rotating plate will drive the silicone recovery sac to rotate together with the round shaft through the placing block. In this way, the 360-degree rotation of the silicone recovery sac can be realized, so as to facilitate the directional recovery of the lesions falling into the digestive tract after excision.

[0017] 3. In the present invention, by providing a handle, a rotating rod, a connecting rod, a clamping block and a spring, when the handle is rotated, the long shaft will drive the rotating rod to rotate. Since the left and right ends of the connecting rod are respectively hinged to the rotating rod and the clamping block, as the rotating rod rotates, one end of the connecting rod will rotate accordingly, so that the other end of the connecting rod generates a pulling force on the clamping block, pulling the clamping block to move and compress the spring to separate from the clamping groove, thereby unlocking the clamping block from the round block and the biopsy channel of the digestive endoscope, and facilitating the disassembly of the round block. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present invention;

[0019] Figure 2 is a schematic cross-sectional structural diagram of the front side of the present invention;

[0020] Figure 3 is a schematic cross-sectional structural diagram of the placement block of the present invention;

[0021] Figure 4 is Figure 2 a partially enlarged structural diagram at A in

[0022] Figure 5 is Figure 2 a partially enlarged structural diagram at B in

[0023] Figure 6 is Figure 2 a partially enlarged structural diagram at C in

[0024] Figure 7 is Figure 3 a partially enlarged structural diagram at D in

[0025] In the figure: 1. Placement block; 2. Support plate; 3. Electric telescopic rod; 4. Movable plate; 5. Inclined rod; 6. Long rod; 7. Convex block; 8. First short rod; 9. Second short rod; 10. Silicone recovery sac; 11. Limiting rod; 12. Filter hole; 13. Rotating plate; 14. Round block; 15. Biopsy channel of digestive endoscope; 16. Round shaft; 17. Driven gear; 18. Driving motor; 19. Driving shaft; 20. Driving gear; 21. Positioning groove; 22. Positioning block; 23. Handle; 24. Long shaft; 25. Rotating rod; 26. Connecting rod; 27. Clamping groove; 28. Clamping block; 29. T-shaped block; 30. Spring. DETAILED DESCRIPTION OF THE INVENTION

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all 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.

[0027] As Figures 1 to 7 shown, an endoscopic polyp removal recovery device is provided in an embodiment of the present invention, including a placement block 1. A support plate 2 is fixedly sleeved at the top end inside the placement block 1. An electric telescopic rod 3 is fixedly installed at the top end of the support plate 2. The bottom end of the electric telescopic rod 3 penetrates through the support plate 2 and extends to the bottom of the support plate 2 and is fixedly installed with a movable plate 4. The outer surface of the movable plate 4 is movably sleeved with the inner surface of the placement block 1. The top end of the movable plate 4 is movably connected to the bottom end of the support plate 2. A diagonal rod 5 is hinged to the front side of the middle of the bottom end of the movable plate 4. The number of diagonal rods 5 is two. The other ends of the two diagonal rods 5 are respectively hinged to long rods 6. The number of long rods 6 is two. Blocks 7 are fixedly installed at the bottom parts of the opposite surfaces of the two long rods 6. The number of blocks 7 is two. The rear ends of the two blocks 7 are respectively hinged to a first short rod 8 and a second short rod 9. The first short rod 8 and the second short rod 9 are hinged to each other. The number of the first short rod 8 and the second short rod 9 is two and their shapes and sizes are the same. Silicone recovery sacs 10 are fixedly installed at the rear ends of the two first short rods 8 and the second short rods 9.

[0028] When the electric telescopic rod 3 is started, it will push the movable plate 4 to drive the diagonal rod 5 to move downward along the inner surface of the placement block 1, so that the other end of the diagonal rod 5 generates a thrust on the long rod 6, pushing the two long rods 6 to drive the blocks 7 to move away from each other. Since the two blocks 7 are respectively hinged to the first short rod 8 and the second short rod 9 and the first short rod 8 and the second short rod 9 are hinged to each other, with the movement of the block 7, the silicone recovery sac 10 will be deformed under the action of the first short rod 8 and the second short rod 9, so as to open the silicone recovery sac 10, and thus the excised lesion can be completely received into the silicone recovery sac 10 through the silicone recovery sac 10.

[0029] During the actual application design of the silicone recovery sac 10, the size can be adjusted according to the diseased tissue, so that the silicone recovery sac 10 can not only recover "small lesion" tissues about 0.5 cm, but also recover "large lesion" tissues of 3.0 cm - 5.0 cm.

[0030] Wherein, limiting rods 11 are movably sleeved inside the two long rods 6. The outer surface of the limiting rod 11 is fixedly sleeved with the inner surface of the placement block 1. Filter holes 12 are formed on the outer surface of the silicone recovery sac 10.

[0031] Due to the existence of the limiting rod 11, the movement of the long rod 6 will be restricted, thus ensuring the stability of the movement of the long rod 6. And the existence of the filter holes 12 can filter out the liquid.

[0032] Among them, a rotating plate 13 is fixedly installed at the top end of the placing block 1. A round block 14 is movably connected to the top end of the rotating plate 13. The outer surface of the round block 14 is movably sleeved with a digestive endoscope biopsy pipeline 15. The bottom of the right side of the inner surface of the digestive endoscope biopsy pipeline 15 is movably connected to the right end of the rotating plate 13.

[0033] When the rotating plate 13 rotates along the bottom end of the round block 14, it will drive the silica gel recovery capsule 10 to rotate together through the placing block 1, so as to adjust the angle of the silica gel recovery capsule 10.

[0034] Among them, a round shaft 16 is fixedly installed on the left side of the top end of the rotating plate 13. The top end of the round shaft 16 penetrates through the round block 14 and extends into the inside of the round block 14 and is fixedly sleeved with a driven gear 17. The bottom end of the driven gear 17 is movably connected to the bottom of the inner surface of the round block 14.

[0035] When the driven gear 17 rotates, it will drive the rotating plate 13 to rotate together through the round shaft 16.

[0036] Among them, a driving motor 18 is fixedly installed on the right side of the top of the inner surface of the round block 14. The other end of the output shaft of the driving motor 18 is fixedly sleeved with a driving shaft 19. The bottom of the outer surface of the driving shaft 19 is fixedly sleeved with a driving gear 20. The outer surface of the driving gear 20 is meshed with the outer surface of the driven gear 17. The bottom end of the driving gear 20 is movably connected to the bottom of the inner surface of the round block 14.

[0037] When the driving motor 18 is started, it will cause the driving shaft 19 to drive the driving gear 20 to rotate. Since the outer surface of the driving gear 20 is meshed with the outer surface of the driven gear 17, under the action of the driving gear 20, the driven gear 17 will drive the round shaft 16 to rotate.

[0038] Among them, a positioning groove 21 is opened at the bottom of the left side of the inner surface of the digestive endoscope biopsy pipeline 15. A positioning block 22 is movably sleeved inside the positioning groove 21. The outer surface of the positioning block 22 is fixedly connected to the outer surface of the round block 14.

[0039] The inner surface of the positioning groove 21 and the outer surface of the positioning block 22 are both smooth, so as to ensure that the positioning block 22 will not get stuck when moving along the inside of the positioning groove 21. And the mutual cooperation of the positioning groove 21 and the positioning block 22 will play a positioning role when the round block 14 is inserted into the inside of the digestive endoscope biopsy pipeline 15.

[0040] Among them, the left side of the bottom end of the round block 14 is movably sleeved with a handle 23. A long shaft 24 is fixedly sleeved inside the handle 23. The top end of the long shaft 24 penetrates through the round block 14 and extends to the top of the round block 14 and is fixedly sleeved with a rotating rod 25. The bottom end of the rotating rod 25 is movably connected to the top end of the round block 14. The right side of the top end of the rotating rod 25 is hinged with a connecting rod 26.

[0041] When the handle 23 is rotated, the handle 23 will drive the long shaft 24 to rotate, so that the rotating rod 25 will drive one end of the connecting rod 26 to rotate along the top end of the round block 14 together with the long shaft 24.

[0042] Among them, a clamping groove 27 located above the round block 14 is opened on the right side of the inner surface of the biopsy channel 15 of the digestive endoscope. A clamping block 28 is movably sleeved inside the clamping groove 27. The bottom end of the clamping block 28 is movably connected to the top end of the round block 14. The left end of the clamping block 28 is hinged to the right end of the connecting rod 26.

[0043] When one end of the connecting rod 26 rotates, since the other end of the connecting rod 26 is hinged to the clamping block 28, under the action of the connecting rod 26, the clamping block 28 will move along the top end of the round block 14 towards the connecting rod 26, so that the clamping block 28 is separated from the clamping groove 27, and the locking of the round block 14 and the biopsy channel 15 of the digestive endoscope by the clamping block 28 is released.

[0044] Among them, a T-shaped block 29 is movably sleeved at the left end inside the clamping block 28. The bottom end of the T-shaped block 29 is fixedly connected to the top end of the round block 14. A spring 30 is fixedly installed at the right end of the T-shaped block 29. The other end of the spring 30 is fixedly installed on the right inner wall of the clamping block 28.

[0045] Due to the existence of the T-shaped block 29, the movement of the clamping block 28 will be restricted. When the clamping block 28 moves towards the connecting rod 26, the spring 30 will be compressed, and under the restoring action of the spring 30, the clamping block 28 will be forced to return to its original position.

[0046] Working principle and usage process:

[0047] During use, the operator first activates the electric telescopic rod 3, causing the electric telescopic rod 3 to push the movable plate 4 downward, so that the inclined rod 5 hinged to the movable plate 4 generates a thrust on the long rod 6, pushing the two long rods 6 to drive the bumps 7 to move away from each other along the outer surface of the limiting rod 11. At this time, the two bumps 7 will drive the first short rod 8 and the second short rod 9 to move together. Since the first short rod 8 and the second short rod 9 are hinged to each other, under the action of the first short rod 8 and the second short rod 9, the silicone recovery sac 10 will deform and open, so that the excised lesion can be completely received into the silicone recovery sac 10. At the same time, the silicone recovery sac 10 is made of silicone and its outer surface is coated with a lubricant, so the silicone recovery sac 10 can drag the complete lesion out of the body through the cardia, the esophageal inlet or the anal orifice.

[0048] When receiving the excised lesion into the silicone recovery sac 10, the operator activates the drive motor 18, which will cause the drive shaft 19 to drive the driving gear 20 to rotate. Since the outer surface of the driving gear 20 is meshed with the outer surface of the driven gear 17, under the action of the driving gear 20, the driven gear 17 will drive the rotating plate 13, the placing block 1 and the silicone recovery sac 10 to rotate through the round shaft 16, so as to facilitate the directional recovery of the lesion that has fallen into the digestive tract after excision, thereby improving the convenience of its use.

[0049] After the lesion is completely removed from the body, the operator rotates the handle 23, causing the handle 23 to drive one end of the connecting rod 26 to rotate around the long shaft 24 through the long shaft 24 and the rotating rod 25, so that the other end of the connecting rod 26 generates a pulling force on the clamping block 28, pulling the clamping block 28 to move along the outer surface of the T-shaped block 29 and compressing the spring 30 until the clamping block 28 is separated from the clamping groove 27, releasing the locking of the clamping block 28 on the round block 14 and the digestive endoscope biopsy channel 15. Then the operator can remove the round block 14, thereby realizing the quick disassembly of the round block 14, which is convenient for the disassembly and assembly of the round block 14.

[0050] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gastroenteroscopic polyp resection retriever, comprising a placement block (1), characterized in that: The top of the placement block (1) is fixedly sleeved with a support plate (2), the top of the support plate (2) is fixedly installed with an electric telescopic rod (3), the bottom end of the electric telescopic rod (3) passes through the support plate (2) and extends to the bottom of the support plate (2) and is fixedly installed with a movable plate (4), the outer surface of the movable plate (4) is movably sleeved with the inner surface of the placement block (1), the top of the movable plate (4) is movably connected with the bottom of the support plate (2), and the front side of the middle of the bottom end of the movable plate (4) is hinged with an inclined rod (5), the number of the inclined rods (5) is two, and the two inclined rods (5) The other end is hinged with a long rod (6), the number of the long rods (6) is two, the bottoms of the opposite surfaces of the two long rods (6) are fixedly mounted with protrusions (7), the number of the protrusions (7) is two, the rear ends of the two protrusions (7) are hinged with a first short rod (8) and a second short rod (9), the first short rod (8) and the second short rod (9) are hinged, the number of the first short rod (8) and the second short rod (9) are both two and the shape and size are the same, and the rear ends of the two first short rods (8) and the second short rod (9) are fixedly mounted with a silica gel recovery bag (10).

2. A gastroenteroscopic polyp resection retriever according to claim 1, characterized in that: The interiors of the two long rods (6) are both movably sleeved with limit rods (11), the outer surfaces of the limit rods (11) are fixedly sleeved with the inner surface of the placement block (1), and the outer surface of the silica gel recovery bag (10) is provided with filter holes (12).

3. A gastroenteroscopic polyp resection retriever according to claim 1, characterized in that: A rotating plate (13) is fixedly mounted on the top of the placement block (1), and a round block (14) is movably connected to the top of the rotating plate (13). A digestive endoscope biopsy channel (15) is movably sleeved on the outer surface of the round block (14), and the bottom of the right side of the inner surface of the digestive endoscope biopsy channel (15) is movably connected to the right end of the rotating plate (13).

4. A gastroenteroscopic polyp resection retriever according to claim 3, characterized in that: A circular shaft (16) is fixedly mounted on the left side of the top of the rotating plate (13); the top of the circular shaft (16) penetrates the round block (14) and extends into the interior of the round block (14) and is fixedly sleeved with a driven gear (17); the bottom end of the driven gear (17) is movably connected to the bottom of the inner surface of the round block (14).

5. The gastrointestinal endoscopic polyp resection retriever according to claim 3, characterized in that: A driving motor (18) is fixedly mounted on the right side of the top of the inner surface of the round block (14); a driving shaft (19) is fixedly sleeved on the other end of the output shaft of the driving motor (18); a driving gear (20) is fixedly sleeved on the bottom of the outer surface of the driving shaft (19); the outer surface of the driving gear (20) is meshedly connected with the outer surface of the driven gear (17); and the bottom end of the driving gear (20) is movably connected to the bottom of the inner surface of the round block (14).

6. The gastrointestinal endoscopic polyp resection retriever according to claim 3, characterized in that: A positioning groove (21) is provided at the bottom of the left side of the inner surface of the digestive endoscope biopsy channel (15), and a positioning block (22) is movably sleeved inside the positioning groove (21), and the outer surface of the positioning block (22) is fixedly connected to the outer surface of the round block (14).

7. The gastrointestinal endoscopic polyp resection retriever according to claim 3, characterized in that: A handle (23) is movably sleeved on the left side of the bottom end of the round block (14), a long shaft (24) is fixedly sleeved inside the handle (23), the top end of the long shaft (24) passes through the round block (14) and extends to the top of the round block (14) and is fixedly sleeved with a rotating rod (25), the bottom end of the rotating rod (25) is movably connected to the top end of the round block (14), and a connecting rod (26) is hinged on the right side of the top end of the rotating rod (25).

8. The gastrointestinal endoscopic polyp resection retriever according to claim 3, characterized in that: A slot (27) located above the round block (14) is provided on the right side of the inner surface of the digestive endoscope biopsy channel (15); a block (28) is movably sleeved inside the slot (27); the bottom end of the block (28) is movably connected to the top end of the round block (14); and the left end of the block (28) is hinged to the right end of the connecting rod (26).

9. A gastrointestinal endoscopic polyp resection retriever according to claim 8, characterized in that: A T-shaped block (29) is movably sleeved on the left end of the clamping block (28), the bottom end of the T-shaped block (29) is fixedly connected to the top end of the round block (14), a spring (30) is fixedly installed on the right end of the T-shaped block (29), and the other end of the spring (30) is fixedly installed on the right inner wall of the clamping block (28).