Cervical canal polypus resecter

Abstract

The present application relates to the technical field of medical devices, in particular to a cervical canal polypus resecter, comprising a handle, a mirror body fixedly connected to the handle, a base detachably connected to the end of the mirror body away from the handle, and a cutting mechanism for resecting polypus arranged on the base; a fixing mechanism for adsorbing and fixing polypus and a flushing mechanism for providing flushing liquid to the surgical area are arranged in the handle. When the cutting mechanism is unfolded, the fixing mechanism generates negative pressure to fix the polypus, and the flushing mechanism transmits the flushing liquid to the surgical area; when the cutting mechanism is closed, the fixing mechanism continuously fixes the polypus, and the flushing mechanism sucks the flushing liquid into the transmission area. The present application is used for simplifying the surgical operation and improving the fluency and safety of the operation.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a cervical polyp removal device. Background Technology

[0002] Cervical polyps are common benign lesions in gynecological clinics, mainly formed by localized hyperplasia of the cervical canal mucosa and outward protrusion. Due to their delicate texture and rich blood supply, they are highly susceptible to bleeding or infection upon contact, thus usually requiring surgical removal. Currently, the mainstream methods for treating cervical polyps in clinical practice include traditional forceps removal, electrocautery, and hysteroscopic resection; however, these traditional instruments and methods still have some shortcomings in practical application.

[0003] First, when using ordinary polyp forceps for clamping and torsion, the narrow field of vision in the cervical canal and the deep location of the polyp root make it difficult for the surgeon to accurately determine the clamping site, easily leading to polyp residue or damage to the normal cervical canal mucosa. Second, the surface of polyps is often smooth and elastic, and traditional clamping instruments are prone to slipping during traction, requiring repeated clamping, which not only prolongs the operation time but may also induce pain and bleeding in the patient. Third, during the operation, blood and cervical secretions often quickly obscure the surgical field, especially in cases of multiple polyps or severe local inflammation, making it difficult for the surgeon to clearly identify the polyp boundaries, thus increasing the risk of incomplete removal or accidental damage to surrounding tissues.

[0004] Although hysteroscopes with suction channels or special polyp removal instruments have been available in recent years, their structures are complex and their operation is cumbersome. Some suction removal instruments also require an external negative pressure source, which is costly. During operation, they need to be operated by an assistant or foot-controlled switch, which requires a high degree of coordination. This increases the difficulty of cooperation and communication costs for medical staff. If the cooperation is not proper, it may affect the progress of the operation.

[0005] Therefore, this invention proposes a cervical canal polyp removal device to simplify surgical procedures and improve the smoothness and safety of the surgery. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides a cervical canal polyp removal device, which simplifies surgical procedures and improves the smoothness and safety of the procedure.

[0007] To achieve the above objectives, the technical solution of the present invention is as follows: a cervical polyp removal device includes a handle, an endoscope fixedly connected to the handle, a base detachably connected to the end of the endoscope away from the handle, and a cutting mechanism for removing polyps provided on the base; the handle contains a fixing mechanism for adsorbing and fixing polyps and a flushing mechanism for providing flushing fluid to the surgical area.

[0008] When the cutting mechanism unfolds, the fixing mechanism generates negative pressure to fix the polyp, and the flushing mechanism transfers the flushing fluid to the surgical area; when the cutting mechanism closes, the fixing mechanism continues to fix the polyp, and the flushing mechanism draws the flushing fluid into the area to be transferred.

[0009] The technical principles of the above solution are as follows:

[0010] The integrated handle enables coordinated cutting, suction, and flushing. When the cutting mechanism unfolds, the fixing mechanism simultaneously generates negative pressure to suction the polyp and stabilize the lesion, while the flushing mechanism outputs fluid to clean the surgical field. When the cutting mechanism closes and resets, the fixing mechanism maintains the suction state to prevent tissue retraction. This sequential coordination of incision and injection, and closed incision and suction, achieves cleanliness of the surgical area and stability of the lesion, reduces obstruction of the surgical field and tissue damage, and improves surgical precision and safety.

[0011] The above approach has the following beneficial effects:

[0012] 1. This solution integrates cutting, suction fixation, and irrigation / aspiration functions into a single handle. The opening and closing motions of the cutting mechanism synchronously link the fixation and irrigation mechanisms, simplifying the surgical procedure. Even when the cutting mechanism is closed, the fixation mechanism maintains continuous negative pressure suction, ensuring that the removed polyp does not accidentally dislodge or shift, facilitating specimen retrieval and improving the smoothness and safety of the surgery.

[0013] 2. This procedure activates the irrigation mechanism simultaneously with the cutting mechanism, continuously delivering irrigation fluid to the surgical area. This effectively washes away obstructions such as blood and mucus, maintaining a clear surgical field. During the cutting process, the surgeon can observe the boundary between the polyp root and normal tissue, thereby reducing the risk of excessively deep cuts or residual tissue.

[0014] 3. This solution achieves multiple functions simultaneously through a single linkage mechanism, featuring a compact structure that eliminates the need for complex external negative pressure generators and solenoid valves, thus reducing manufacturing costs and failure rates. Furthermore, the base and mirror body are detachably connected, allowing the base and cutting blade to be replaced together after use, ensuring the sterility of the device.

[0015] Furthermore, the cutting mechanism includes a cutter symmetrically hinged to the base at the end away from the mirror body, and a transmission rod slidably fitted on the inner wall of the mirror body; a first button is fixedly connected to one end of the transmission rod, and the first button is slidably fitted with the handle; a slider is fixedly connected to the other end of the transmission rod, and connecting rods are symmetrically hinged on the slider, with the ends of the connecting rods away from the transmission rod all hinged to the cutter.

[0016] Beneficial effects: The transmission rod is driven by the first button, and the linkage mechanism between the slider and the connecting rod converts the axial thrust into the opening and closing action of the cutting blade. This structure provides stable transmission and intuitive operation, allowing control of the cutting range with just one hand, reducing the problems of jamming or slippage of traditional instruments, and improving the safety and efficiency of surgery.

[0017] Furthermore, the fixing mechanism includes a first cavity embedded in the handle, a piston plate that slides on the inner wall of the first cavity, and the piston plate that is fixedly connected to the transmission rod; an adsorption tube and an output tube are connected to the first cavity, and a first one-way valve is provided on the communication path between the adsorption tube and the output tube and the first cavity; an adsorption port is provided on the side of the base away from the mirror body, the end of the adsorption tube away from the first cavity is connected to the adsorption port, and the end of the output tube away from the first cavity is connected to the outside.

[0018] Beneficial effects: By utilizing a transmission rod to link a piston plate, a one-way valve cleverly switches between negative pressure adsorption and air pressure balance. During cutting and unfolding, suction generates negative pressure to stabilize the polyp; during closure, continuous adsorption occurs. This structure requires no independent power source, responds quickly, and provides a reliable seal, effectively preventing polyp slippage or retraction during surgery, thereby improving surgical precision and safety.

[0019] Furthermore, the rinsing mechanism includes a second cavity embedded in the handle, which is used to store rinsing fluid; the side of the first cavity away from the adsorption tube is connected to a suction tube and a delivery tube, and a second one-way valve is provided on the communication path between the suction tube and the delivery tube and the first cavity; the end of the suction tube away from the first cavity is connected to the second cavity, and a rinsing hole is also opened at the end of the scope away from the handle, and the end of the delivery tube away from the first cavity is connected to the rinsing hole.

[0020] Beneficial effects: The flushing mechanism is driven by the negative pressure change of the first chamber: when the cutting unfolds, the piston suction generates negative pressure, which sprays the flushing fluid in the second chamber out of the flushing hole through the delivery pipe to clean the surgical field; when the chamber is closed, the flushing fluid is drawn into the first chamber and waits for the next trigger, thereby maintaining a clear field of vision and preventing fluid waste.

[0021] Furthermore, it also includes an adjustment mechanism for adjusting the orientation of the base. The adjustment mechanism includes a rotating shaft fixedly connected to the base, which rotates in coordination with the mirror body. A gear is coaxially fixedly connected to the rotating shaft, and the gear meshes with a rack. A second button is fixedly connected to the end of the rack away from the gear, and the second button slides in coordination with the handle. A connecting component is also provided between the transmission rod and the slider.

[0022] Beneficial effects: The second button drives the rack and pinion, which in turn adjusts the base and the angle of the cutting blade. This design allows the instrument to adapt to the curvature of the cervical canal, thus aligning it with the lesion and solving the problems of limited field of vision and numerous blind spots in traditional instruments; combined with the optimized transmission of the connecting components, it improves the flexibility of surgical operations.

[0023] Furthermore, the connecting assembly includes a slide rod hinged to the transmission rod, with one end of the slide rod away from the transmission rod fixedly connected to the slider; limit blocks are symmetrically fixedly connected to the base, and the slide rod and the limit blocks are in sliding engagement.

[0024] Beneficial effects: By utilizing the cooperation of the slide bar and the limiting block, the linear motion of the transmission rod is converted into the stable displacement of the slider. This structure prevents the connecting rod from deviating or jamming during movement, improves the smoothness and synchronization of the mechanism's transmission, ensures smooth and reliable opening and closing of the cutting blade, extends the instrument's service life, and guarantees surgical safety.

[0025] Furthermore, the lens body is also provided with a locking assembly for locking the gear. The locking assembly includes a spring fixedly connected to the lens body, and a locking block fixedly connected to the end of the spring away from the lens body. A pull wire is fixedly connected to the locking block, and a third button is fixedly connected to the end of the pull wire away from the locking block. The third button slides in cooperation with the side wall of the handle.

[0026] Beneficial effects: The third button controls the cable to disengage the locking block from the gear, allowing for free switching and precise locking of the adjustable angle. Mechanical self-locking reduces the risk of angle drift, improves operational convenience, ensures instrument stability during surgery, and prevents accidental loosening that could damage healthy tissue.

[0027] Furthermore, the side wall of the endoscope is also equipped with optical components for observing the surgical area. The optical components include a front-viewing objective and a side-viewing objective. The handle is equipped with a switching component for switching the viewing angles of the front-viewing objective and the side-viewing objective.

[0028] Beneficial effects: The viewpoint can be switched by switching the handle, which reduces the blind spots in the field of vision of traditional single-view instruments; at the same time, it avoids the cumbersome operation of frequently adjusting the patient's position or changing instruments during the operation, and improves the efficiency and completeness of the resection in complex anatomical structures.

[0029] Furthermore, the switching component includes an optical prism that slides against the inner wall of the mirror body, and a lever inside the handle, with the end of the lever away from the handle being fixedly connected to the optical prism.

[0030] Beneficial effects: The optical prism inside the endoscope is directly driven by the lever inside the handle, enabling rapid switching between forward and side views. This ensures a clear and stable field of vision in surgical irrigation environments, improving the surgeon's operational fluency and diagnostic accuracy in complex anatomical areas.

[0031] Furthermore, depth markings are also engraved on the outer wall of the endoscope.

[0032] Beneficial effects: By directly setting depth markers on the outer wall of the endoscope, doctors are provided with intuitive and real-time references for the incision depth. At the same time, clear markings improve the standardization and safety of the surgery, helping to achieve minimally invasive and precise treatment and reducing the incidence of postoperative complications. Attached Figure Description

[0033] Figure 1 This is an isometric view of the cervical polyp removal device of the present invention.

[0034] Figure 2 For the present invention Figure 1 The top sectional view in the image.

[0035] Figure 3 This is an isometric view of the adjustment mechanism in the cervical polyp removal device of the present invention.

[0036] Figure 4 For the present invention Figure 3 The top sectional view in the image.

[0037] Figure 5 For the present invention Figure 2 Enlarged view of section A.

[0038] Figure 6 For the present invention Figure 4 Enlarged view of section B.

[0039] The reference numerals in the accompanying drawings include: 1. Handle; 2. Mirror body; 3. Base; 4. Cutting knife; 5. Transmission rod; 6. Slider; 7. Connecting rod; 8. First cavity; 9. Piston plate; 10. Second cavity; 11. Gear; 12. Rack; 13. Slide rod; 14. Limiting block; 15. Spring; 16. Locking block; 17. First button. Detailed Implementation

[0040] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] The following detailed description illustrates the specific implementation method:

[0044] Example 1:

[0045] As attached Figure 1 As shown: A cervical canal polyp removal device includes a handle 1, a scope 2 fixedly connected to the handle 1 by screws, a base 3 detachably connected to the end of the scope 2 away from the handle 1, and a cutting mechanism for removing polyps provided on the base 3; the handle 1 is provided with a fixing mechanism for adsorbing and fixing polyps and a flushing mechanism for providing flushing fluid to the surgical area.

[0046] When the cutting mechanism unfolds, the fixing mechanism generates negative pressure to fix the polyp, and the flushing mechanism transfers the flushing fluid to the surgical area; when the cutting mechanism closes, the fixing mechanism continues to fix the polyp, and the flushing mechanism draws the flushing fluid into the area to be transferred.

[0047] Combination Figure 2 and Figure 5 As shown, the cutting mechanism includes cutters 4 symmetrically hinged to the base 3 at the end away from the mirror body 2. A transmission rod 5 is slidably fitted onto the inner wall of the mirror body 2. A first button 17 is screwed to one end of the transmission rod 5, and the first button 17 is slidably fitted onto the handle 1. A slider 6 is screwed to the other end of the transmission rod 5. Connecting rods 7 are symmetrically hinged to the slider 6, and the ends of the connecting rods 7 away from the transmission rod 5 are all hinged to the cutters 4. In this embodiment, the front ends of the cutters 4 are all designed with rounded heads to facilitate the insertion of the device.

[0048] The fixing mechanism includes a first cavity 8 embedded in the handle 1, a piston plate 9 slidingly fitted on the inner wall of the first cavity 8, and the piston plate 9 being fixedly connected to the transmission rod 5 with screws; an adsorption tube and an output tube are connected to the first cavity 8, and a first one-way valve is provided on the communication path between the adsorption tube and the output tube and the first cavity 8; an adsorption port is provided on the side of the base 3 away from the mirror body 2, the end of the adsorption tube away from the first cavity 8 is connected to the adsorption port, and the end of the output tube away from the first cavity 8 is connected to the outside.

[0049] In this embodiment, the first one-way valve is used to provide one-way flow, allowing the fluid to flow in from the adsorption tube and then out through the outlet tube; and through this design, the adsorption tube generates negative pressure, and when the piston plate 9 reverses its stroke, the negative pressure at the adsorption port is maintained, so as to stably adsorb and fix the polyp.

[0050] The rinsing mechanism includes a second cavity 10 embedded in the handle 1, which is used to store rinsing fluid; a suction tube and a delivery tube are connected to the side of the first cavity 8 away from the suction tube, and a second one-way valve is provided on the communication path between the suction tube and the delivery tube and the first cavity 8; the end of the suction tube away from the first cavity 8 is connected to the second cavity 10, and a rinsing hole is also opened at the end of the mirror body 2 away from the handle 1, and the end of the delivery tube away from the first cavity 8 is connected to the rinsing hole.

[0051] In this embodiment, an injection port is also provided on the second cavity 10, which can be replaced with different flushing fluids according to actual needs; the second one-way valve is used to provide one-way flow, so that the fluid flows from the suction tube through the delivery tube.

[0052] The specific implementation process is as follows:

[0053] The operator holds handle 1 and inserts the distal end of base 3 through the cervical canal into the location of the polyp. At this time, the cutting blade 4 is closed and retracted under the pull of connecting rod 7, facilitating insertion. After insertion into the predetermined position, the operator pushes the first button 17, causing the transmission rod 5 to slide distally. The slider 6 fixed at the distal end of the transmission rod 5 moves forward synchronously, and the slider 6 pushes the two cutting blades 4 to open outward around the hinge point through the symmetrically hinged connecting rod 7.

[0054] At this time, the piston plate 9 fixed on the transmission rod 5 moves forward synchronously within the first cavity 8; the piston plate 9 divides the first cavity 8 into a front cavity (closer to the mirror body 2) and a rear cavity (away from the mirror body 2). Both the adsorption tube and the outlet tube are connected to the rear cavity. The movement of the piston plate 9 increases the volume of the rear cavity, generating negative pressure. Since the first one-way valve only allows fluid to flow in from the adsorption tube, the gas in the adsorption tube is drawn into the rear cavity, forming a negative pressure at the adsorption port, adsorbing and fixing the polyp. The negative pressure continues to act on the adsorption port.

[0055] As the piston plate 9 moves forward, it compresses the volume of the anterior chamber, increasing the pressure inside the anterior chamber. The anterior chamber is connected to a suction tube (from the second chamber 10) and a delivery tube (to the irrigation hole). Both tubes are equipped with a second one-way valve. The positive pressure in the anterior chamber causes the irrigation fluid to be sprayed out from the irrigation hole through the delivery tube, cleaning the surgical area, dispersing blood and mucus, and making the surgical field clear.

[0056] After the polyp is adsorbed and fixed, the operator slides the first button 17 backward, causing the transmission rod 5 to slide proximally. The slider 6 moves backward, pulling the cutter 4 around the hinge point via the connecting rod 7, thereby cutting off the base of the polyp.

[0057] During this process, the transmission rod 5 drives the piston plate 9 to move backward, reducing the volume of the rear chamber and increasing the pressure. Since the first one-way valve at the adsorption tube is closed at this time (to prevent gas backflow), the gas in the rear chamber can only be discharged to the outside through the outlet pipe, while the negative pressure in the adsorption tube is maintained (the first one-way valve locks the negative pressure). Therefore, the adsorption port continues to hold the removed polyps, preventing them from falling off or shifting. The backward movement of the piston plate 9 increases the volume of the front chamber, generating negative pressure. Under the action of the negative pressure in the front chamber, the suction tube draws the flushing fluid from the second chamber 10 into the front chamber.

[0058] After the polyp is removed, it is adhered and fixed at the suction port and withdrawn from the cervical canal along with the instrument, thus completely removing the polyp. In some preferred embodiments, the first button 17 can be repeatedly operated to increase the negative pressure generated at the suction port, further fixing the polyp and generating more irrigation fluid to keep the surgical field clear, thereby removing the polyp.

[0059] This embodiment allows for a multi-functional polyp removal process by simply pushing and pulling the first button 17. The first one-way valve ensures that the suction tube maintains negative pressure as the piston moves backward, preventing the polyp from falling off during the removal process. The piston plate 9 has separate controls for fixing and flushing on both sides, ensuring they do not interfere with each other. The compact structure allows for one-handed operation and coordinated movement.

[0060] Example 2:

[0061] As attached Figure 3 , Figure 4 and Figure 6 As shown, the difference from Embodiment 1 is that this embodiment also includes an adjustment mechanism for adjusting the direction of the base 3. The adjustment mechanism includes a rotating shaft that is fixedly connected to the base 3 with screws. The rotating shaft is rotatably engaged with the mirror body 2. A gear 11 is coaxially keyed on the rotating shaft. The gear 11 meshes with a rack 12. A second button is fixedly connected to the end of the rack 12 away from the gear 11 with screws. The second button is slidably engaged with the handle 1 (not shown in the figure). A connecting component is also provided between the transmission rod 5 and the slider 6.

[0062] The connecting assembly includes a slide rod 13 hinged to the transmission rod 5, with one end of the slide rod 13 away from the transmission rod 5 fixedly connected to the slider 6 by screws; limit blocks 14 are symmetrically fixedly connected to the base 3 by screws, and the slide rod 13 and the limit blocks 14 are in sliding engagement. In this embodiment, the connecting assembly is used to transmit power from the transmission rod 5 to the slider 6 after the adjustment mechanism is turned, so that the power transmission can be maintained after the direction is adjusted.

[0063] The specific implementation process is as follows:

[0064] When it is necessary to change the angle of the cutting blade 4 to accommodate the slanted growth of the polyp root within the cervical canal, the operator pushes or pulls the second button axially along the handle 1. The second button is connected to the rack 12, which moves axially accordingly; the rack 12 meshes with the gear 11, which rotates synchronously with the rotating shaft via a key connection. Since the rotating shaft is fixed to the base 3 with screws, the base 3 will rotate a certain angle relative to the endoscope 2 around the axis of rotation (e.g., deflecting to the left or right); this rotation allows the distal end of the base 3 to change its orientation, facilitating alignment with the polyp root.

[0065] When the base 3 rotates, the hinge point between the transmission rod 5 and the slide rod 13 deflects at an angle. Since the slide rod 13 is in sliding engagement with the limiting block 14 (the limiting block 14 provides radial support but allows sliding), and the slide rod 13 and the transmission rod 5 are hinged, the slide rod 13 moves within the limiting block 14 as the base 3 rotates. Therefore, the axial movement of the transmission rod 5 always pushes the slide rod 13 through the hinge point. The slide rod 13 then pushes the slider 6 axially along the limiting block 14, and the slider 6, in turn, drives the cutting blade 4 to open and close via the connecting rod 7. The power transmission is unaffected by the direction adjustment of the base 3, achieving a linkage effect that is directionally adjustable and provides uninterrupted power.

[0066] After the base 3 is adjusted to the correct orientation, the operator can press the first button 17, causing the transmission rod 5 to move axially. The transmission rod 5 pushes the hinged slide rod 13, which, guided by the limiting block 14, drives the slider 6 to move. The slider 6, through the connecting rod 7, causes the cutting blade 4 to open or close. Simultaneously, the piston plate 9 on the transmission rod 5 continues to synchronously drive the fixing mechanism and the flushing mechanism, completing the auxiliary function of polyp removal. Throughout the process, the base 3 maintains its deflection angle, and all other functions operate normally. After the surgery, the second button can be pushed in the opposite direction, causing the rack 12 to drive the gear 11 in reverse, restoring the base 3 to its initial coaxial position with the endoscope 2, facilitating the removal of instruments from the cervical canal.

[0067] Example 3:

[0068] As attached Figure 6 As shown, the difference from Embodiment 2 is that the mirror body 2 is also provided with a locking assembly for locking the gear 11. The locking assembly includes a spring 15 fixedly connected to the mirror body 2 by a screw, and a locking block 16 fixedly connected to the end of the spring 15 away from the mirror body 2 by a screw. A pull wire is fixedly sleeved on the locking block 16, and a third button is fixedly sleeved on the end of the pull wire away from the locking block 16. The third button slides with the side wall of the handle 1.

[0069] The specific implementation process is as follows:

[0070] Before adjusting the orientation of the base 3, the locking assembly is in a locked state: the spring 15 is in a naturally extended or compressed state (depending on the installation method), pushing the locking block 16 to contact the tooth groove or tooth surface of the gear 11, restricting the rotation of the gear 11, thereby preventing the orientation of the base 3 from changing accidentally.

[0071] When the orientation of base 3 needs to be adjusted, the operator slides the third button along the side wall of handle 1. The third button pulls the locking block 16 via a cable, overcoming the spring force of spring 15, causing the locking block 16 to disengage from gear 11 and release the lock. At this time, the second button can be freely pushed or pulled, driving gear 11 and the rotating shaft to rotate via rack 12, causing base 3 to deflect to the required angle. After the orientation of base 3 is adjusted to the correct position, the third button is released. Spring 15 pushes the locking block 16 to re-engage with gear 11 and lock it in place, ensuring the stability of base 3's angle during surgery. This locking assembly achieves controllable orientation adjustment and intraoperative stability, preventing base 3 from shifting due to accidental activation or tissue reaction force.

[0072] Example 4:

[0073] The difference from Embodiment 3 is that the side wall of the endoscope 2 is also provided with an optical component for observing the surgical area. The optical component includes a front-viewing objective and a side-viewing objective. In this embodiment, the optical axis of the front-viewing objective is at an angle of 0°-30° to the axis of the endoscope 2, and the optical axis of the side-viewing objective is at an angle of 60°-90° to the axis of the endoscope 2, which is used for lateral observation of the cervical canal wall. The handle 1 is provided with a switching component for switching the viewing angle of the front-viewing objective and the side-viewing objective.

[0074] The switching assembly includes an optical prism that slides and fits into the inner wall of the mirror body 2, and a lever is provided in the handle 1. The end of the lever away from the handle 1 is fixedly bonded to the optical prism.

[0075] The specific implementation process is as follows:

[0076] During the procedure, the operator can switch between the front and side viewing objectives by moving a lever on handle 1 as needed. The lever is fixedly bonded to the optical prism inside the lens body 2. When the lever slides along the side wall of handle 1, the optical prism moves to the corresponding optical path position.

[0077] To observe polyps and the surgical area directly in front of the cervical canal, push the lever to the first position, aligning the optical prism with the front objective lens. The optical axis of the front objective lens forms a 0°-30° angle with the axis of the scope 2, providing a clear frontal view. To observe the polyp root or the condition of the cervical canal wall on the side wall, push the lever to the second position. The optical prism switches to the side objective lens path, with its optical axis forming a 60°-90° angle with the axis of the scope 2, facilitating lateral observation of the canal wall. The switching process does not require replacing the scope 2 or re-inserting instruments; simply by moving the lever, different viewing angles can be quickly switched, allowing for a comprehensive assessment of the polyp's location, morphology, and surrounding tissue, improving surgical accuracy and safety.

[0078] Example 5:

[0079] The difference from Example 4 is that the outer wall of the mirror body 2 is also engraved with depth markings.

[0080] The specific implementation process is as follows:

[0081] Depth marking provides doctors with an intuitive reference for incision. During the operation, doctors can directly observe the changes in the scale as the endoscope 2 enters the cervical canal, without relying on external measuring tools or subjective estimation to grasp the cutting depth of the cutting mechanism. This design not only simplifies the operation process, allowing doctors to focus on lesion removal and field of vision adjustment, but also effectively avoids the risk of over-cutting tissue or damaging deep blood vessels and nerves due to blind advancement, thus improving the standardization, safety, and minimally invasive treatment effect of the operation.

[0082] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A cervical polyp removal device, comprising a handle (1), an endoscope (2) fixedly connected to the handle (1), and a base (3) detachably connected to one end of the endoscope (2) away from the handle (1), characterized in that, The base (3) is provided with a cutting mechanism for removing polyps; the handle (1) is provided with a fixing mechanism for adsorbing and fixing polyps and a rinsing mechanism for providing rinsing fluid to the surgical area; When the cutting mechanism unfolds, the fixing mechanism generates negative pressure to fix the polyp, and the flushing mechanism transfers the flushing fluid to the surgical area; when the cutting mechanism closes, the fixing mechanism continues to fix the polyp, and the flushing mechanism draws the flushing fluid into the area to be transferred.

2. The cervical polyp removal device according to claim 1, characterized in that, The cutting mechanism includes a cutter (4) symmetrically hinged to the base (3) at the end away from the mirror body (2), and a transmission rod (5) slidingly fitted on the inner wall of the mirror body (2); a first button (17) is fixedly connected to one end of the transmission rod (5), and the first button (17) is slidably fitted with the handle (1); a slider (6) is fixedly connected to the other end of the transmission rod (5), and a connecting rod (7) is symmetrically hinged on the slider (6), with the end of the connecting rod (7) away from the transmission rod (5) hinged to the cutter (4).

3. The cervical polyp removal device according to claim 2, characterized in that, The fixing mechanism includes a first cavity (8) embedded in the handle (1), a piston plate (9) slidingly fitted on the inner wall of the first cavity (8), and the piston plate (9) fixedly connected to the transmission rod (5); an adsorption tube and an output tube are connected to the first cavity (8), and a first one-way valve is provided on the communication path between the adsorption tube and the output tube and the first cavity (8); an adsorption port is provided on the side of the base (3) away from the mirror body (2), the end of the adsorption tube away from the first cavity (8) is connected to the adsorption port, and the end of the output tube away from the first cavity (8) is connected to the outside.

4. The cervical polyp removal device according to claim 3, characterized in that, The rinsing mechanism includes a second cavity (10) embedded in the handle (1), which is used to store rinsing fluid; the side of the first cavity (8) away from the adsorption tube is connected to a suction tube and a delivery tube, and a second one-way valve is provided on the communication path between the suction tube and the delivery tube and the first cavity (8); the end of the suction tube away from the first cavity (8) is connected to the second cavity (10), and the end of the mirror body (2) away from the handle (1) is also provided with a rinsing hole, and the end of the delivery tube away from the first cavity (8) is connected to the rinsing hole.

5. The cervical polyp removal device according to claim 4, characterized in that, It also includes an adjustment mechanism for adjusting the direction of the base (3). The adjustment mechanism includes a rotating shaft fixedly connected to the base (3), which rotates in cooperation with the mirror body (2). A gear (11) is fixedly connected to the rotating shaft on the same axis. The gear (11) meshes with a rack (12). A second button is fixedly connected to the end of the rack (12) away from the gear (11). The second button slides in cooperation with the handle (1). A connecting component is also provided between the transmission rod (5) and the slider (6).

6. The cervical polyp removal device according to claim 5, characterized in that, The connecting assembly includes a slide rod (13) hinged to the transmission rod (5), with one end of the slide rod (13) away from the transmission rod (5) fixedly connected to the slider (6); and limit blocks (14) symmetrically fixedly connected to the base (3), with the slide rod (13) and the limit blocks (14) slidingly engaged.

7. The cervical polyp removal device according to claim 6, characterized in that, The mirror body (2) is also provided with a locking assembly for locking the gear (11). The locking assembly includes a spring (15) fixedly connected to the mirror body (2). A locking block (16) is fixedly connected to one end of the spring (15) away from the mirror body (2). A pull wire is fixedly connected to the locking block (16). A third button is fixedly connected to one end of the pull wire away from the locking block (16). The third button slides with the side wall of the handle (1).

8. The cervical polyp removal device according to claim 7, characterized in that, The side wall of the endoscope (2) is also provided with an optical component for observing the surgical area. The optical component includes a front view objective and a side view objective. The handle (1) is provided with a switching component for switching the viewing angles of the front view objective and the side view objective.

9. The cervical polyp removal device according to claim 8, characterized in that, The switching assembly includes an optical prism that slides into the inner wall of the mirror body (2), and a lever is provided in the handle (1). The end of the lever away from the handle (1) is fixedly connected to the optical prism.

10. The cervical polyp removal device according to claim 9, characterized in that, The outer wall of the mirror body (2) is also engraved with depth markings.

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