Gastrointestinal endoscopic polyp extractor and control assembly

Abstract

The application discloses a gastrointestinal mirror polypus collector and control assembly, and aims to provide a kind of integrated instrument with reasonable structure, convenient operation, mechanical cutting, crushing, conveying and sterile collection of polypus.The device effectively solves the problems of poor contact of electric lead, easy damage of structure and poor operation stability caused by polypus collapse in traditional high-frequency electrocoagulation resection method through the synergistic effect of cutting mechanism and crushing mechanism combined with negative pressure suction and electromagnetic drive control; meanwhile, through the combination of mechanical crushing and negative pressure conveying, the device avoids the blockage of pipeline during the conveying of polypus, and significantly reduces the risk of sample pollution by using closed collection design, thereby improving the safety of operation and the integrity of polypus sample.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a gastrointestinal endoscopic polyp collector and control components. Background Technology

[0002] In the field of clinical medicine, colonoscopy and polyp removal surgery are key methods for diagnosing and treating intestinal polyps. Precise polyp removal and aseptic collection directly affect the surgical outcome, the accuracy of pathological diagnosis, and the patient's postoperative recovery. Currently, the most commonly used endoscopic polyp removal method in clinical practice is high-frequency electrocoagulation resection, combined with conventional negative pressure suction devices to complete polyp removal and collection. However, in practical application, existing technologies have several technical shortcomings that urgently need to be addressed, as follows: Polyp removal suffers from poor stability, easily leading to structural damage and operational risks: Existing high-frequency electrocoagulation resection methods use electrical wires to release high-frequency current for cutting, but intestinal polyps are soft and prone to collapse and deformation during the procedure. After collapse, they easily come into contact with the electrical wires, which may wear down the wire insulation, causing abnormal current conduction, reducing cutting efficiency, or even burning tissue. Furthermore, once the polyp shape changes, it becomes difficult to cut stably, requiring repeated adjustments to the procedure, prolonging the operation time, increasing the risk of residual polyps or mucosal damage, and affecting the stability and safety of the procedure.

[0003] The process of transporting and collecting polyps carries risks of blockage and sample contamination: Current techniques primarily rely on negative pressure suction to draw intact polyps into a container during transport and collection after polyp removal. However, due to the large size and irregular shape of polyp tissue, they are prone to blockage within the thin transport tube, leading to interrupted suction, requiring tube disassembly and cleaning, and impacting surgical efficiency. Blockage can also cause tissue retention and damage, affecting the accuracy of subsequent pathological examinations.

[0004] Furthermore, existing collection equipment is highly open, with the connection between the delivery tube and the container often being open or simply locked, allowing samples to easily come into contact with air, the environment, or operators, causing contamination. Additionally, some transmission components (such as pull cables and gears) are located near the sample channel, making them susceptible to contact with the sample during operation, introducing physical contamination or residues (such as lubricants or metal shavings), interfering with pathological results, and affecting diagnostic accuracy.

[0005] Therefore, the present invention discloses a gastrointestinal polyp collector and control components for endoscopic polyp removal. Summary of the Invention

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: A gastrointestinal endoscopic polyp collector and control assembly includes: a handle, a control assembly, a negative pressure pump, a pulverizing mechanism, and a cutting mechanism; A control component is embedded in the side wall of the handle, a retracting wheel is rotatably connected to the upper rear of the handle, and a negative pressure pump is integrally set at the front end of the handle. The negative pressure pump has an integrally formed conveying pipe at its front end; the front end of the conveying pipe is fixedly connected to a crushing mechanism; The crushing mechanism includes a receiving bucket, a first extrusion plate, a second extrusion plate, a crushing assembly, and a drive gear; the lower end of the receiving bucket is fixedly connected to a conveying pipe, a square cavity is opened in the middle of the receiving bucket, and square mounting grooves are opened on the lower part of the four side walls of the square cavity to install the first extrusion plate and the second extrusion plate; a straight rod is provided on the upper end of the outer wall of the receiving bucket, and a cutting mechanism is detachably installed on the upper end of the receiving bucket; an electromagnet pole is provided on the wall of the square mounting groove; a sliding groove is opened on the upper end of the straight rod; Permanent magnets are provided on the rear end walls of both extrusion plate one and extrusion plate two. A square groove is formed at one front end of the extrusion plate; a plurality of crushing components are arranged in an array inside the square groove, and a drive gear is rotatably installed on one side of the top of the square groove and connected to the gear of the adjacent crushing component. A rack and pinion gear is provided on the upper end of the second extrusion plate on one side to connect with the drive gear; Furthermore, a branch pipe is provided on the lower rear end of the conveying pipe; the lower end of the branch pipe is threadedly connected to a collection bucket; a gathering layer is provided on the upper end of the collection bucket; and a through hole is formed in the gathering layer. Furthermore, a compression plate is slidably installed inside the transverse mounting groove; The second extrusion plate is slidably installed inside the vertical mounting groove; The width of the first extrusion plate and the second extrusion plate is the same as the width of the square mounting groove. When the first extrusion plate and the second extrusion plate are installed inside the mounting groove, the front end face of the first extrusion plate and the second extrusion plate are flush with the wall of the square cavity on the corresponding side. This ensures that when the first extrusion plate or the second extrusion plate slides in the square cavity, the first extrusion plate or the second extrusion plate can abut against both ends of the first extrusion plate or the second extrusion plate, ensuring smooth sliding. Furthermore, the magnetic poles of the electromagnet are made of a metal that can be attracted by a permanent magnet, such as pure iron or silicon steel sheets with soft magnetic properties. The permanent magnet and the electromagnet poles are not obstructed on opposite sides to avoid weakening the magnetic attraction or repulsion between the permanent magnet and the electromagnet poles. A magnetic isolation layer is provided on the opposite side of the permanent magnet and the electromagnet poles to prevent the permanent magnets from attracting each other when the extrusion plate one or extrusion plate two are attached, which would prevent the permanent magnets from driving the extrusion plate one or extrusion plate two back into the mounting groove. Furthermore, the crushing component is a round rod rotatably installed in a square groove. Several smooth circular cutting blades are arranged in an array at the lower part of the round rod, and a gear is provided at the top of the round rod to connect the crushing components on both sides. The gear at the upper end of the outermost crushing component is connected to the drive gear, and the rotation of the crushing component is controlled by the rotation of the drive gear. The cutting blades at the lower part of adjacent crushing components are staggered; Furthermore, the cutting assembly includes four blades, a slider, a pull wire, and a take-up wheel; The four blades are connected end to end to form a rhombus blade group; the rhombus blade group is rotatably connected to the upper end of the receiving barrel and the slider at opposite angles; the slider is slidably installed in the slide groove, and an elastic element is provided at the rear end of the slider to connect to the slide groove, so that the rhombus blade group is formed into a square blade group covering the outer side of the upper end of the square cavity through the elastic element; One end of the pull wire is fixed to the slider, and the other end is wound and gathered on the gathering wheel. The moving part of the pull wire is located inside the groove and in the through hole of the gathering layer. By moving the gathering wheel, the pull wire drives the slider to move in the groove, changing the shape of the diamond blade group to achieve the cutting of polyps. Furthermore, the control component is electrically connected to the negative pressure pump and the electromagnet poles; the control component controls the operation of the negative pressure pump to absorb polyps inside the receiving bucket; The control components control the horizontal and vertical electromagnet poles and permanent magnets to reciprocate and alternately move; the reciprocating and alternating motion control process is as follows: control the horizontal electromagnet poles to work for t seconds, control the two sides of the extrusion plate to quickly approach each other, during the process of the extrusion plate approaching, the drive gear is affected by the rack to rotate and control several crushing components to rotate, and cut and crush the polyps that are in contact with the front end of the extrusion plate. After t seconds, the two sides of the extrusion plate approach each other. The electromagnetic poles of the transverse electromagnet are de-energized, and under the action of the permanent magnet, the extrusion plate returns to its original position in the mounting slot. Control the vertical electromagnet poles for t seconds, and control the two extrusion plates on both sides to quickly approach each other, extruding and adjusting the state and shape of the polyps after they have been cut and crushed, so that the extrusion plates can further refine and crush the polyps. The vertical electromagnet poles are de-energized, and under the action of the permanent magnet, the second extrusion plate returns to its original position in the mounting slot. The above process is repeated 3-5 times to completely crush and refine the polyps, making it easier for the delivery pipe to pick up and transport the polyps. The beneficial effects of this invention are: Mechanized cutting: This invention features a cutting mechanism that uses a pull wire to move a slider within a groove by actuating a winding wheel. This changes the shape of the rhomboid blade assembly, enabling rapid cutting of polyps entering the receiving container. After cutting, the rhomboid blade assembly quickly resets under the action of an elastic element for further cutting. This solves the problem in existing technologies where traditional high-frequency electrocoagulation resection methods are prone to polyp collapse, leading to contact with electrical wires and structural damage, making it difficult to ensure stable polyp removal operations. Integrated processing and stable and rapid transport and collection of polyps: Through the reciprocating alternating motion of the horizontal extrusion plate one and the vertical extrusion plate two, the crushing component ensures that the polyps are repeatedly cut and refined, breaking them into small pieces, which facilitates their entry into the transport pipe and avoids the problems of difficult polyp transport and easy blockage of the transport pipe in the prior art. Furthermore, the suction generated by the negative pressure pump allows the sample to directly enter the collection bucket connected to the lower thread along the delivery pipe, without the need for manual contact throughout the entire process. In addition, a gathering layer is set at the upper end of the collection bucket, and the part of the pull wire that moves is hidden in the through hole of the gathering layer, which avoids the pull wire coming into contact with the polyp sample and causing contamination, thus solving the problem of sample contamination caused by exposure during the collection process in existing equipment. Attached Figure Description

[0007] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0008] Figure 1 This is a schematic diagram of the overall structure of a gastrointestinal endoscopic polyp removal collector and control components; Figure 2 This is a cross-sectional schematic diagram of a gastrointestinal endoscopic polyp removal collector and control components. Figure 3 A is a partially enlarged structural diagram of a gastrointestinal endoscopic polyp removal collector and control components; Figure 4 This is a partially enlarged schematic diagram (B) of a gastrointestinal endoscopic polyp removal collector and control assembly. Figure 5 This is a compression plate one of a gastrointestinal endoscopic polyp collector and control assembly. A schematic diagram of the installation state of compression plate two is also shown. Figure 6 This is a schematic diagram of the crushing component of a gastrointestinal endoscopic polyp removal collector and control assembly; The attached diagram lists the components represented by each number as follows: 1-Handle, 2-Control component, 3-Negative pressure pump, 301-Conveying pipe, 302-Branch pipe, 303-Collection bucket, 4-Receiving bucket, 401-Mounting groove, 4011-Electromagnet pole, 402-Straight rod, 4021-Slide groove, 501-Extrusion plate one, 5011-Permanent magnet, 5012-Square groove, 502-Extrusion plate two, 5021-Rack, 503-Crushing component, 5031-Cutting blade, 5032-Gear, 504-Drive gear, 6-Rhomboid blade assembly, 601-Slider, 602-Pull wire, 603-Gathering wheel. Detailed Implementation

[0009] This invention discloses a gastrointestinal endoscopic polyp collector and control component 2, comprising: a handle 1, a control component 2, a negative pressure pump 3, a crushing mechanism, and a cutting mechanism; A control component 2 is embedded in the side wall of the handle 1. A gathering wheel 603 is rotatably connected to the upper rear part of the handle 1. A negative pressure pump 3 is integrally set at the front end of the handle 1. The negative pressure pump 3 has an integrally installed conveying pipe 301 at its front end; the conveying pipe 301 is fixedly connected to a crushing mechanism at its front end. The crushing mechanism includes a receiving bucket 4, a first extrusion plate 501, a second extrusion plate 502, a crushing component 503, and a drive gear 504. A conveying pipe 301 is fixedly connected to the lower end of the receiving bucket 4. A square cavity is formed in the middle of the receiving bucket 4, and square mounting grooves 401 are formed on the lower part of the four side walls of the square cavity to install the first extrusion plate 501 and the second extrusion plate 502. A straight rod 402 is provided on the upper end of the outer wall of the receiving bucket 4, and a cutting mechanism can be detachably installed on the upper end of the receiving bucket 4. Electromagnetic poles 4011 are provided on the wall of the square mounting grooves 401. A sliding groove 4021 is formed on the upper end of the straight rod 402. Permanent magnets 5011 are provided on the rear end walls of both extrusion plate 501 and extrusion plate 502. The front end of the extrusion plate 501 has a square groove 5012; a plurality of crushing components 503 are arranged in an array in the square groove 5012; a drive gear 504 is rotatably installed on one side of the top of the square groove 5012 and connected to the adjacent crushing component 503 gear 5032. A rack 5021 and a gear 5032 are provided on the upper end of the extrusion plate 502 on one side, which are connected to the drive gear 504.

[0010] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention; obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0011] Example 1

[0012] like Figure 1-6 The diagram shown is a schematic diagram of the device structure of the present invention. In the present invention, a handle 1, a control component 2, a negative pressure pump 3, a crushing mechanism, and a cutting mechanism are provided. The control component 2 is embedded in the side wall of the handle 1. The upper rear end of the handle 1 is rotatably connected to the retracting wheel 603, and the front end of the handle 1 is integrally equipped with a negative pressure pump 3. The handle 1 serves as the grip and operating carrier of the device, providing medical staff with stable hand support, making the force applied to the hand more even, and ensuring precise control of the device position under colonoscopy guidance, so that the receiving bucket 4 can be accurately aligned with the polyp. The integrated installation of the control component 2, negative pressure pump 3 and retracting wheel 603 concentrates the core functional components within the handhold area, allowing medical staff to naturally touch each operating component with their fingers, and complete the entire operation without additional hand posture adjustments. The negative pressure pump 3 has an integrally installed conveying pipe 301 at its front end; the conveying pipe 301 is fixedly connected to a crushing mechanism at its front end. The crushing mechanism includes a receiving bucket 4, a first extrusion plate 501, a second extrusion plate 502, a crushing component 503, and a drive gear 504. A conveying pipe 301 is fixedly connected to the lower end of the receiving bucket 4. A square cavity is formed in the middle of the receiving bucket 4, and square mounting grooves 401 are formed on the lower part of the four side walls of the square cavity to install the first extrusion plate 501 and the second extrusion plate 502. A straight rod 402 is provided on the upper end of the outer wall of the receiving bucket 4, and a cutting mechanism can be detachably installed on the upper end of the receiving bucket 4. Electromagnetic poles 4011 are provided on the wall of the square mounting grooves 401. A sliding groove 4021 is formed on the upper end of the straight rod 402. Permanent magnets 5011 are provided on the rear end walls of both extrusion plate 501 and extrusion plate 502. The front end of the extrusion plate 501 has a square groove 5012; a plurality of crushing components 503 are arranged in an array in the square groove 5012; a drive gear 504 is rotatably installed on one side of the top of the square groove 5012 and connected to the adjacent crushing component 503 gear 5032. A rack 5021 and a gear 5032 are provided on the upper end of the extrusion plate 502 on one side, which are connected to the drive gear 504. In this embodiment, a branch pipe 302 is provided on the lower rear end of the delivery pipe 301; the lower end of the branch pipe 302 is threadedly connected to the collection bucket 303; a gathering layer is provided on the upper end of the collection bucket 303; a through hole is provided in the gathering layer; the receiving bucket 4, delivery pipe 301, insertion tube, and collection bucket 303 form a complete delivery path for the polyp, ensuring aseptic delivery of the polyp; In this embodiment, the square cavity inside the receiving bucket 4 provides space for the polyp to be contained, ensuring that the polyp can fall accurately into the cavity after cutting and avoid displacement; In this embodiment, a negative pressure suction is generated by a negative pressure pump 3, and the suction is transmitted to the inside of the receiving bucket 4 through the delivery pipe 301. During the cutting and crushing process, the polyps and fragments are continuously adsorbed to prevent the polyps from falling off due to intestinal peristalsis or device movement, and to ensure that the polyps are always in the square cavity.

[0013] In this example, the extrusion plate 501 is slidably installed inside the transverse mounting groove 401; The extrusion plate 502 is slidably installed inside the vertical mounting groove 401; The width of the first extrusion plate 501 and the second extrusion plate 502 is the same as the width of the square mounting groove 401. When the first extrusion plate 501 and the second extrusion plate 502 are installed inside the mounting groove 401, the front end face of the first extrusion plate 501 and the second extrusion plate 502 is flush with the wall of the square cavity on the corresponding side. This ensures that when the first extrusion plate 501 or the second extrusion plate 502 slides in the square cavity, the second extrusion plate 502 or the first extrusion plate 501 can abut against both ends of the first extrusion plate or the second extrusion plate 502, ensuring smooth sliding. In this example, the electromagnet pole 4011 is made of a metal that can be attracted by the permanent magnet 5011, such as pure iron or silicon steel sheets with soft magnetic material. The permanent magnet 5011 and the electromagnet pole 4011 are not obstructed on opposite sides, so as to avoid weakening the magnetic attraction or repulsion between the permanent magnet 5011 and the electromagnet pole 4011. A magnetic isolation layer is provided on the opposite side of the permanent magnet 5011 and the electromagnet pole 4011 to prevent the permanent magnets 5011 from attracting each other when the extrusion plate 1 501 or extrusion plate 2 502 is attached, which would prevent the permanent magnets 5011 from being unable to drive the extrusion plate 1 501 or extrusion plate 2 502 back into the mounting groove 401. In this example, the crushing component 503 is a round rod rotatably mounted in the square groove 5012. Several circular smooth cutting blades 5031 are arranged in an array at the lower part of the round rod, and a gear 5032 is provided at the top of the round rod to connect the crushing components 503 on both sides. The gear 5032 at the upper end of the outermost crushing component 503 is connected to the drive gear 504, and the rotation of the crushing component 503 is controlled by the rotation of the drive gear 504. The cutting blades 5031 at the lower part of the adjacent crushing components 503 are staggered; In this example, the cutting assembly includes four blades, a slider 601, a pull wire 602, and a gathering wheel 603; The four blades are connected end to end to form a rhombus blade group 6; the rhombus blade group 6 is rotatably connected to the upper end of the receiving barrel 4 and the slider 601 at opposite angles; the slider 601 is slidably installed in the slide groove 4021, and the rear end of the slider 601 is provided with an elastic element connected to the slide groove 4021, and the rhombus blade group 6 is kept in shape as a square blade group covering the outer side of the upper end of the square cavity by the elastic element. One end of the pull wire 602 is fixed to the slider 601, and the other end is wound and gathered on the gathering wheel 603. The moving parts of the pull wire 602 are located inside the groove 4021 and in the through hole of the gathering layer. The pull wire 602 is wound and unwound by rotation: clockwise rotation winds the pull wire 602, dragging the slider 601 along the groove 4021; counterclockwise rotation or unwinding, in conjunction with the elastic element, resets the pull wire 602. Through the torque amplification effect of the rotation of the gathering wheel 603, the slider 601 can be moved with relatively little hand force, and the shape change of the diamond blade group 6 can be precisely controlled to cut polyps. In this example, the control component 2 is electrically connected to the negative pressure pump 3 and the electromagnet pole 4011; the negative pressure pump 3 is controlled by the control component 2 to remove polyps from inside the receiving bucket 4. The control component 2 controls the horizontal and vertical electromagnet poles 4011 and permanent magnet 5011 to reciprocate alternately. The reciprocating alternate motion control process is as follows: the horizontal electromagnet pole 4011 is controlled to work for t seconds, and the two extrusion plates 501 on both sides are controlled to move closer quickly. During the process of the extrusion plates 501 moving closer, the drive gear 504 is affected by the rack 5021 to rotate and control several crushing components 503 to rotate, and cut and crush the polyps in contact with the front end of the extrusion plates 501. After t seconds, the two extrusion plates 501 on both sides are close together. When the horizontal electromagnet pole 4011 is de-energized, the extrusion plate 501 returns to the mounting groove 401 and resets under the action of the permanent magnet. Control the vertical electromagnet poles 4011 for t seconds, and control the two extrusion plates 502 on both sides to quickly approach each other, extruding and adjusting the state and shape of the polyps after cutting and crushing, so that the extrusion plates 501 can further refine and crush the polyps. The vertical electromagnet pole 4011 is de-energized, and under the action of the permanent magnet, the extrusion plate 502 returns to the mounting groove 401 to reset; the above process is repeated 3-5 times to completely crush and refine the polyps, making it easier for the delivery pipe 301 to pick up and deliver the polyps. Detailed usage instructions Medical staff hold the handle 1, and their fingers can naturally operate the control component 2 and the condenser wheel 603. Under the guidance of a colonoscope, the receiving bucket 4 is positioned directly above the polyp, and the polyp falls into the square cavity; By turning the retractor wheel 603, the pull cable 602 is driven, and the pull cable 602 drags the slider 601 to move within the groove 4021. The slider 601 moves to change the shape of the diamond-shaped blade assembly 6, thereby cutting and processing the polyp. After the retractor 603 is released, the slider 601 resets under the action of the elastic element, and the rhomboid blade assembly 6 returns to its initial state. Operation control component 2 starts negative pressure pump 3, which generates suction on the cut polyp through receiving bucket 4. Control component 2 automatically controls the horizontal and vertical electromagnet poles 4011 and permanent magnet 5011 to reciprocate alternately: The horizontal electromagnet pole 4011 operates for t seconds, during which the two side extrusion plates 501 rapidly approach each other. During this approach, the drive gear 504 rotates under the action of the rack 5021, driving the crushing component 503 to operate. The cutting blades 5031 of the crushing component 503 rotate alternately, cutting and crushing the polyps. After t seconds, the horizontal electromagnet is de-energized, and the extrusion plate 501 resets under the action of the permanent magnet. The vertical electromagnet pole 4011 operates for t seconds, during which the two side extrusion plates 502 rapidly approach each other, squeezing and adjusting the polyp's state. The vertical electromagnet is de-energized, and the extrusion plate 502 resets under the action of the permanent magnet. This crushing process is repeated 3-5 times until the polyps are completely crushed and refined. The crushed polyps are transported to the branch pipe 302 through the delivery pipe 301 under the action of the negative pressure pump 3. Finally, the polyp fragments are collected into the collection bucket 303. After collection is complete, the collection bucket 303 can be unscrewed for processing.

[0014] In summary, this invention discloses a gastrointestinal endoscopic polyp collector and control component 2, aiming to provide an integrated instrument with a reasonable structure, convenient operation, and the ability to achieve mechanized cutting, crushing, transport, and aseptic collection of polyps. This device, through the synergistic action of the cutting and crushing mechanisms, combined with negative pressure suction and electromagnetic drive control, effectively solves the problems of poor contact of electrical leads, structural fragility, and poor operational stability caused by polyp collapse in traditional high-frequency electrocoagulation resection methods. Simultaneously, the combination of mechanical crushing and negative pressure transport avoids polyp blockage of the pipeline during transport, and the closed collection design significantly reduces the risk of sample contamination, improving surgical safety and the integrity of the polyp sample.

[0015] This invention has the advantages of simple operation, high cutting efficiency, thorough crushing, smooth conveying, and sterile collection. It is suitable for the removal and recovery of polyps of various sizes and has good clinical application prospects.

[0016] The preferred embodiments of the present invention disclosed above are only for the purpose of illustrating the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation described.

Claims

1. A polyp collector and control assembly for gastrointestinal endoscopic polyp removal, characterized in that, include: Handle, control components, negative pressure pump, crushing mechanism, cutting mechanism; A control component is embedded in the side wall of the handle, a retracting wheel is rotatably connected to the upper rear of the handle, and a negative pressure pump is integrally set at the front end of the handle. The negative pressure pump has an integrally formed conveying pipe at its front end; the front end of the conveying pipe is fixedly connected to a crushing mechanism; The crushing mechanism includes a receiving bucket, an extrusion plate one, an extrusion plate two, a crushing component, and a drive gear; the lower end of the receiving bucket is fixedly connected to a conveying pipe, a square cavity is opened in the middle of the receiving bucket, and square mounting grooves are opened on the lower part of the four side walls of the square cavity to install extrusion plate one and extrusion plate two; a straight rod is provided on the upper end of the outer wall of the receiving bucket, and a cutting mechanism is detachably installed on the upper end of the receiving bucket; an electromagnet pole is provided on the wall of the square mounting groove; a sliding groove is opened on the upper end of the straight rod; Permanent magnets are provided on the rear end walls of both extrusion plate one and extrusion plate two. A square groove is formed at one front end of the extrusion plate; a plurality of crushing components are arranged in an array inside the square groove, and a drive gear is rotatably installed on one side of the top of the square groove and connected to the gear of the adjacent crushing component. A rack and pinion gear is provided on the upper end of the extrusion plate on one side to connect with the drive gear.

2. The gastrointestinal endoscopic polyp collector and control assembly according to claim 1, characterized in that, A branch pipe is provided on the lower rear end of the conveying pipe; the lower end of the branch pipe is threaded to a collection bucket; a gathering layer is provided on the upper end of the collection bucket; and a through hole is provided in the gathering layer.

3. The gastrointestinal endoscopic polyp collector and control assembly according to claim 1, characterized in that, A compression plate is slidably installed inside the horizontal mounting groove; The second extrusion plate is slidably installed inside the vertical mounting groove; The width of the first extrusion plate and the second extrusion plate is the same as the width of the square mounting groove. When the first extrusion plate and the second extrusion plate are installed inside the mounting groove, the front end face of the first extrusion plate and the second extrusion plate are flush with the wall of the square cavity on the corresponding side. This ensures that when the first extrusion plate or the second extrusion plate slides in the square cavity, the first extrusion plate or the second extrusion plate can abut against both ends of the first extrusion plate or the second extrusion plate, ensuring smooth sliding.

4. The endoscopic polyp collector and control assembly for gastrointestinal resection according to claim 1, characterized in that, The electromagnet poles are made of metal that can be attracted by permanent magnets, such as pure iron or silicon steel sheets with soft magnetic properties. The permanent magnet and the electromagnet poles are not obstructed on opposite sides to avoid weakening the magnetic attraction or repulsion between the permanent magnet and the electromagnet poles. A magnetic isolation layer is provided on the opposite side of the permanent magnet and the electromagnet poles to prevent the permanent magnets from attracting each other when the extrusion plate one or extrusion plate two is attached, which would prevent the permanent magnets from driving the extrusion plate one or extrusion plate two back into the mounting groove.

5. The endoscopic polyp collector and control assembly for gastrointestinal resection according to claim 4, characterized in that, The crushing component is a round rod rotatably installed in a square groove. Several smooth circular cutting blades are arranged in an array at the lower part of the round rod, and a gear is provided at the top of the round rod to connect the crushing components on both sides. The gear at the upper end of the outermost crushing component is connected to the drive gear, and the rotation of the crushing component is controlled by the rotation of the drive gear. The cutting blades at the bottom of adjacent crushing components are arranged alternately.

6. The endoscopic polyp collector and control assembly for gastrointestinal resection according to claim 4, characterized in that, The cutting assembly includes four blades, a slider, a pull wire, and a take-up wheel; The four blades are connected end to end to form a rhombus blade group; the rhombus blade group is rotatably connected to the upper end of the receiving barrel and the slider at opposite angles; the slider is slidably installed in the slide groove, and an elastic element is provided at the rear end of the slider to connect to the slide groove, so that the rhombus blade group is formed into a square blade group covering the outer side of the upper end of the square cavity through the elastic element; One end of the pull wire is fixed to the slider, and the other end is wound and gathered on the gathering wheel. The moving part of the pull wire is located inside the groove and in the through hole of the gathering layer. By moving the gathering wheel, the pull wire drives the slider to move in the groove, changing the shape of the diamond blade group to achieve the cutting of polyps.

7. The endoscopic polyp collector and control assembly for gastrointestinal resection according to claim 4, characterized in that, The control component is electrically connected to the negative pressure pump and the electromagnet; the negative pressure pump is controlled by the control component to remove polyps from inside the receiving tank.

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