A uterine curettage device

Abstract

The application belongs to the technical field of medical devices, and specifically provides a uterine curettage device for gynaecology and obstetrics, which comprises a supporting pipe, one end of the supporting pipe is provided with a flexible plug, the end of the supporting pipe away from the flexible plug is provided with a handle type operating mechanism, an adjustable scraping mechanism is slidably arranged in the supporting pipe, the adjustable scraping mechanism is installed on the upper part of the handle type operating mechanism, and the end of the adjustable scraping mechanism away from the supporting pipe is installed with a collecting mechanism; the uterine curettage device for gynaecology and obstetrics can conveniently adjust the penetration depth of the operating pipe and effectively avoid repeated and excessive scraping, a hidden cutting knife is adopted, the endometrial state is protected, the uterus is prevented from being perforated, and the pain of the patient is reduced; in addition, the uterine cavity tissue is collected in a negative pressure adsorption mode, the collecting chamber is divided into multiple convertible chambers, the uterine cavity samples at different positions can be conveniently sampled, and the accuracy of pathological diagnosis is improved.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically referring to a curettage device for obstetrics and gynecology. Background Technology

[0002] In obstetrics and gynecology clinical practice, curettage is a common minimally invasive procedure. Its core applications include the removal of residual tissue after incomplete abortion, removal of endometrial polyps, and diagnostic curettage and pathological examination of endometrial hyperplasia or cancer. The core of this procedure is to use a curette to scrape abnormal tissue or residual material from the uterine cavity to achieve the effects of disease diagnosis, symptom relief, or treatment cure.

[0003] Existing curettage devices still have the following shortcomings in practical use:

[0004] 1. Some curettage devices are relatively simple, lacking precision and safety. When used, they need to be repeatedly inserted and removed from the uterus to scrape away the residue, which can easily cause uterine damage or even uterine perforation.

[0005] 2. Although some curettage devices are equipped with visualization devices, the operation process is cumbersome, it is difficult to adjust the insertion depth of the curettage head, and sampling is difficult. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides a gynecological curettage device that allows for convenient adjustment of the insertion depth of the operating tube and effectively avoids repeated and excessive scraping. It employs an elastic buffer sleeve and a concealed excision blade to protect the endometrium, prevent uterine perforation, and reduce patient discomfort. The operating tube is advanced and tissue is removed via a handle-type mechanism, making operation convenient and controllable. Furthermore, it uses negative pressure adsorption to collect uterine cavity tissue, and the collection chamber is divided into multiple convertible compartments to facilitate sampling from different locations within the uterine cavity, improving the accuracy of pathological diagnosis.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: The present invention provides a gynecological curettage device, including a support tube, one end of which is provided with a flexible plug, the flexible plug being made of silicone rubber and having a cross groove, the support tube being provided with a dilation bladder, the end of the support tube away from the flexible plug being provided with a handle-type operating mechanism, an adjustable curettage mechanism being slidably provided inside the support tube, the adjustable curettage mechanism being installed on the upper part of the handle-type operating mechanism, and a collection mechanism being installed at the end of the adjustable curettage mechanism away from the support tube.

[0008] Furthermore, the adjustable scraping mechanism includes an operating tube, a clamp-type cutting component, a winding component, and a material collection block. The operating tube is slidably inserted into the support tube. The clamp-type cutting component is located at one end of the operating tube near the flexible plug. The material collection block is connected to the other end of the operating tube. The channel of the operating tube passes through the material collection block. A suction tube is connected through the material collection block. The suction tube is not connected to the operating tube. The winding component is located at the lower part of the end of the operating tube near the material collection block.

[0009] Furthermore, the handle-type operating mechanism includes a grip, an operating disc, and a mounting bracket. The grip is connected to the end of the support tube away from the flexible plug. The upper end of the grip is provided with a bearing groove, which is connected to the channel of the support tube. The operating tube is movably installed in the bearing groove. The operating disc is rotatably mounted on the side wall of the grip. The other side wall of the grip is provided with an injection port, which is connected to the dilator. The side of the grip away from the support tube is provided with a cutting groove. The mounting bracket is slidably mounted in the cutting groove. A return spring is connected between the mounting bracket and the grip.

[0010] Preferably, a miniature camera and a light are embedded in the end of the operating tube, with the light located below the miniature camera. Adjustment grooves are evenly distributed on the outer wall of the operating tube near the operating panel. The structure and location of excess tissue inside the patient's uterine cavity can be clearly seen through the light and the miniature camera.

[0011] Furthermore, the clamp-type cutting assembly includes a support rod, clamping blocks, and a pull rod. The support rod is located at the end of the operating tube and below the lighting lamp. Two sets of clamping blocks are symmetrically rotated and located at the lower end of the support rod. An expanding torsion spring is connected between the symmetrical clamping blocks and is sleeved on the support rod. The expanding torsion spring causes the symmetrical clamping blocks to move away from each other. A cutting blade is slidably embedded in the opposite sidewall of the symmetrical clamping blocks. The pull rod is slidably embedded in the end of the clamping block away from the support rod. A pull rope is connected to the pull rod and passes through the inside of the operating tube and is wound around the winding assembly.

[0012] Preferably, a buffer sleeve is fitted on the outer side of the support rod and the clamping block. The buffer sleeve is made of silicone. The resection blade passes through the buffer sleeve. A silicone connecting cover is connected between the buffer sleeve and the operating tube. Two sets of silicone connecting covers are symmetrically arranged on both sides of the support rod. When the symmetrical clamping blocks open under the elastic action of the expansion torsion spring, the silicone connecting cover unfolds and covers the area between the symmetrical clamping blocks with the upper part of the operating tube. The silicone buffer sleeve and the silicone connecting cover contact the inner wall of the uterine cavity, preventing the sharp resection blade from damaging the uterus during the movement of the operating tube.

[0013] Furthermore, the symmetrical clamping blocks have blade-retracting grooves on their opposite sidewalls, and the cutting blade is slidably disposed within the blade-retracting grooves. The cutting blade has an inclined control groove that slopes outwards along the direction from the support rod to the pull rod. A pull-out slide groove is connected above the blade-retracting groove, and the pull rod is slidably disposed within the pull-out slide groove. A pulling spring connects the pull rod to the clamping block, and a control rod is provided at the lower part of the pull rod. The control rod slides within the control groove. In the initial state, the pull rod slides completely into the pull-out slide groove under the pull of the pulling spring. At this time, the control rod is located at the end of the control groove near the support rod, and the cutting blade slides completely into the blade-retracting groove. When the pull rope pulls the pull rod, the pull rod partially slides out of the pull-out slide groove, and the control rod slides to the end away from the support rod within the control groove along the inclined trajectory, thereby causing the cutting blade's edge to slide out of the blade-retracting groove.

[0014] Furthermore, the winding assembly includes a winding frame, a winding drum, and a toothed disc. The winding frame is installed inside the mounting frame and is arranged in an inverted U-shape. The winding drum is rotatably located inside the winding frame. The toothed discs are symmetrically arranged at both ends of the winding drum. A first torsion spring connects the toothed discs to the winding frame. Sharp teeth are evenly distributed on the circumference of the toothed discs. The pull rope is wound on the winding drum. Under the elastic action of the first torsion spring, the winding drum always winds up the redundant pull rope, keeping the pull rope in a taut state.

[0015] Furthermore, the mounting frame has an insertion groove on its inner side, and the winding frame is engaged in the insertion groove. Magnetic blocks are provided on the bottom of the winding frame and the bottom wall of the insertion groove. A pressing plate is slidably provided on the side of the mounting frame away from the bearing groove. A spring is connected between the pressing plate and the mounting frame. A stop block is provided on the side of the pressing plate near the mounting frame. When the pressing plate is pressed close to the mounting frame, the stop block is inserted between the sharp teeth on the circumference of the toothed disc, preventing the winding drum from rotating.

[0016] Furthermore, a toggle gear is rotatably provided on the upper wall of the bearing groove near the operation panel, and the toggle gear meshes with evenly distributed adjustment tooth grooves. A transition gear is rotatably provided on the side wall of the handle near the operation panel, and the transition gear meshes with the toggle gear. A transmission belt is wound between the rotating shaft of the transition gear and the rotating shaft of the operation panel. Arc-shaped protrusions are evenly distributed around the circumference of the outer side wall of the operation panel. A limiting plate is rotatably provided on the side wall of the handle. A second torsion spring is connected between the limiting plate and the handle. Under the elastic action of the second torsion spring, the movable end of the limiting plate is movably engaged with the arc-shaped protrusions of the operation panel.

[0017] In use, rotating the control disc clockwise drives the transition gear to rotate clockwise via the transmission belt, which in turn causes the control gear to rotate counterclockwise. The control gear meshes with the adjusting groove, allowing the operating tube to enter the patient's uterine cavity. The insertion depth of the operating tube is controlled by rotating the control disc. Under the elastic action of the second torsion spring, the movable end of the limiting plate engages with the arc-shaped protrusion of the control disc, positioning the control disc and preventing its rotation from affecting the position of the clamp-type resection component at the end of the operating tube. If it is necessary to withdraw the operating tube, simply twist the limiting plate to release it from engagement with the arc-shaped protrusion of the control disc, allowing the control disc to rotate and the operating tube to retract. The operation is convenient.

[0018] Furthermore, the collection mechanism includes a collection frame, a fixed column, a collection box, and a plug-in column. The collection frame is inserted into the lower part of the material collection block. The collection frame is cylindrical. A sealing ring is provided between the collection frame and the material collection block. The collection frame is connected to the operating pipe and the suction pipe through the material collection block. The fixed column is located at the inner center of the collection frame. The collection box is rotatably located inside the collection frame. The plug-in column is slidably located at the center of the collection box and slides along the central axis of the collection box. The plug-in column is movably sleeved on the fixed column.

[0019] Furthermore, the fixed post has evenly distributed fixed slots around its circumference at one end near the bottom wall of the collection frame, and a movable groove in the middle of the fixed post, which communicates with the evenly distributed fixed slots; the inner circumference of the plug-in post has evenly distributed conversion blocks, which slide within the fixed slots. When the plug-in post slides out of the collection box, the conversion blocks slide out of the fixed slots and move within the movable groove; the outer wall of the plug-in post has evenly distributed limiting blocks; the collection box is hollow inside, and the inner circumference of the collection box has evenly distributed... The collection box has a partition plate that divides the internal space into four chambers. The partition plate has a follower groove at one end near the center of the collection box. The limiting block is slidably disposed in the follower groove and slides along the central axis of the collection box. When the insertion and removal column is rotated, the collection box can be rotated within the collection frame. The outer wall of the collection box has feed ports evenly distributed around its circumference. The feed ports penetrate the outer wall of the collection box and are located at the center of the adjacent partition plate. In the initial state, the feed ports are connected to the operating pipe and the suction pipe through the material collection block.

[0020] When excess tissue to be removed is distributed in different locations within the patient's uterine cavity, it is necessary to collect the excess tissue separately to facilitate medical staff in distinguishing the location of the lesion tissue and improving the accuracy of pathological diagnosis. Specifically, medical staff pull the insertion and extraction column outward, causing the conversion block to slide out of the fixed slot. At this time, the conversion block can rotate in the movable slot, and then rotate 90 degrees. Under the action of the limiting block, the collection box as a whole rotates 90 degrees within the collection frame, so that the inlet of the next chamber is aligned with the collection block. Then, the insertion and extraction column is pushed back to its original position, and the conversion block slides back into the fixed slot for positioning, thereby collecting the removed excess tissue into a new chamber to distinguish it from the previously removed tissue. The multiple independent chambers in the collection box can correspond to different parts within the uterine cavity.

[0021] The beneficial effects achieved by the present invention using the above structure are as follows:

[0022] 1. This invention provides a gynecological curettage device with an assembled structure. The cervix is ​​dilated by a dilator on a support tube, and then the curettage operation is performed by an adjustable curettage mechanism. During the curettage operation, there is no need for the operating tube to be repeatedly inserted and removed from the uterine cavity, which prevents cervical tearing. The insertion depth of the operating tube is controlled by a gear transmission structure. At the same time, an elastic buffer sleeve and a hidden excision blade are used to remove excess tissue by cutting rather than scraping, which protects the endometrial condition, prevents uterine perforation, and reduces patient pain.

[0023] 2. The operating tube is advanced via a handle-type operating mechanism, and the resection blade is controlled by pulling a rope to remove tissue, making the operation convenient and controllable;

[0024] 3. The uterine cavity tissue is collected using negative pressure adsorption. The collection mechanism is easy to install and divides the collection room into multiple convertible chambers, which facilitates the sampling of uterine cavity samples from different locations and improves the accuracy of pathological diagnosis. Attached Figure Description

[0025] Figure 1 This invention provides a schematic diagram of the structure of a curettage device for obstetrics and gynecology.

[0026] Figure 2 This invention provides an exploded structural diagram of a curettage device for obstetrics and gynecology.

[0027] Figure 3 This is a schematic diagram of the handle-type operating mechanism;

[0028] Figure 4 A schematic diagram of the rear structure of the collection mechanism of a gynecological curettage device provided by the present invention;

[0029] Figure 5 This is a schematic diagram of the adjustable scraping mechanism;

[0030] Figure 6 for Figure 4 A magnified schematic diagram of the local structure at point A;

[0031] Figure 7 A schematic diagram of the structure of the operating tube end and the clamp-type cutting assembly;

[0032] Figure 8 The front view of the clamp-type cutting component when the clamp block is closed;

[0033] Figure 9 for Figure 8 Schematic diagram of the cross-sectional structure at point BB;

[0034] Figure 10 A schematic diagram of the exploded structure of the collection mechanism;

[0035] Figure 11 The main view of the collection box;

[0036] Figure 12 This is a schematic diagram of the plug-in / plug-out post structure;

[0037] Figure 13 for Figure 11 A schematic diagram of the cross-sectional structure at point CC.

[0038] Among them, 1. Support tube, 2. Handle-type operating mechanism, 3. Adjustable scraping mechanism, 4. Collection mechanism, 5. Flexible plug, 6. Expansion bladder, 7. Operating tube, 8. Adjustable toothed groove, 9. Clamp-type cutting assembly, 10. Rewinding assembly, 11. Material collection block, 12. Suction tube, 13. Miniature camera, 14. Lighting lamp, 15. Handle, 16. Bearing groove, 17. Actuating gear, 18. Transition gear, 19. Operating panel, 20. Transmission belt, 21. Limiting plate, 22. Injection port, 23. Cutting chute, 24. Mounting bracket, 25. Insertion groove, 26. Pressing plate, 27. Return spring, 2 8. Spring, 29. Cut-off block, 30. Buffer sleeve, 31. Silicone cover, 32. Support rod, 33. Clamping block, 34. Expansion torsion spring, 35. Pull rod, 36. Pull rope, 37. Knife return groove, 38. Pull-out slide, 39. Pull spring, 40. Insertion control rod, 41. Cutting knife, 42. Control groove, 43. Rewinding frame, 44. Winding drum, 45. Gear plate, 46. Collection frame, 47. Fixed post, 48. Fixed slot, 49. Movable groove, 50. Collection box, 51. Insertion and removal post, 52. Divider plate, 53. Follower groove, 54. Conversion block, 55. Restriction block, 56. Feed port. Detailed Implementation

[0039] The technical solution of this patent will be further described in detail below with reference to specific implementations. Any technical features or connection relationships not described in detail in this invention are all existing technologies.

[0040] The present invention will be further described in detail below with reference to the accompanying drawings.

[0041] like Figures 1-13 As shown, the present invention provides a gynecological curettage device, including a support tube 1, one end of which is provided with a flexible plug 5. The flexible plug 5 is made of silicone rubber and has a cross groove. An expansion bladder 6 is provided on the outer wall of the support tube 1. A handle-type operating mechanism 2 is provided at the end of the support tube 1 away from the flexible plug 5. An adjustable curettage mechanism 3 is slidably provided inside the support tube 1. The adjustable curettage mechanism 3 is installed on the upper part of the handle-type operating mechanism 2. A collection mechanism 4 is installed at the end of the adjustable curettage mechanism 3 away from the support tube 1.

[0042] The handle-type operating mechanism 2 includes a handle 15, which is connected to the end of the support tube 1 away from the flexible plug 5. The upper end of the handle 15 has a support groove 16 connected to the channel of the support tube 1. An operating disc 19 is rotatably mounted on the side wall of the handle 15, and an injection port 22 is located on the other side wall of the handle 15, connected to the dilator 6. A toggle gear 17 is rotatably mounted on the upper wall of the support groove 16 near the operating disc 19, and a transition gear 18 is rotatably mounted on the side wall of the handle 15 near the operating disc 19. The transition gear 18 meshes with the toggle gear 17, and a transmission belt 20 is wound between the shaft of the transition gear 18 and the shaft of the operating disc 19. Arc-shaped protrusions are evenly distributed around the outer circumference of the outer wall of the operating disc 19, and the side wall of the handle 15... A limiting plate 21 is also provided for rotation. A second torsion spring is connected between the limiting plate 21 and the handle 15. Under the elastic action of the second torsion spring, the movable end of the limiting plate 21 is engaged with the arc-shaped protrusion of the operating disc 19. When the medical staff moves the operating disc 19, the rotating operating disc 19 drives the transition gear 18 to rotate through the transmission belt 20, which in turn drives the actuating gear 17 to rotate. During this period, the limiting plate 21 is engaged with the arc-shaped protrusion of the operating disc 19, which does not affect the clockwise rotation of the operating disc 19, and at the same time prevents the operating disc 19 from rotating counterclockwise. A cutting groove 23 is provided on the side of the handle 15 away from the support tube 1. A mounting bracket 24 is slidably provided in the cutting groove 23. A return spring 27 is connected between the mounting bracket 24 and the bottom wall of the cutting groove 23.

[0043] The adjustable scraping mechanism 3 includes an operating tube 7, which is slidably inserted into the support tube 1 and movably installed in the bearing groove 16. A miniature camera 13 and a lighting lamp 14 are embedded in the end of the operating tube 7. The lighting lamp 14 is located below the miniature camera 13. Adjusting grooves 8 are evenly distributed on the outer wall of the operating tube 7 near the operating disc 19. The evenly distributed adjusting grooves 8 mesh with the actuating gear 17. When the actuating gear 17 rotates, the insertion of the operating tube 7 is controlled by adjusting the grooves 8. Depth; The operating tube 7 is provided with a clamping and cutting component at one end near the flexible plug 5, and the other end of the operating tube 7 is connected to a material collection block 11. The channel of the operating tube 7 passes through the material collection block 11, and a suction tube 12 is connected through the material collection block 11. The suction tube 12 is not directly connected to the operating tube 7, and the suction tube 12 is connected to an external extraction mechanism. The lower part of the operating tube 7 near the material collection block 11 is provided with a winding component 10, and the operating tube 7 near the flexible plug 5 is provided with a clamping and cutting component 9.

[0044] The clamp-type cutting assembly 9 includes a support rod 32, which is located at the end of the operating tube 7 and below the lighting lamp 14. A clamping block 33 is symmetrically rotated at the lower end of the support rod 32. An expanding torsion spring 34 connects the symmetrical clamping blocks 33 and is sleeved on the support rod 32, causing the symmetrical clamping blocks 33 to move away from each other. A cutting blade 41 is slidably embedded in the opposite sidewall of each symmetrical clamping block 33. A pull rod 35 is slidably embedded in the end of each clamping block 33 away from the support rod 32, and a pull rope is connected to the pull rod 35. 36. The pull rope 36 passes through the inside of the operating tube 7 and is wound around the winding assembly 10; a buffer sleeve 30 is sleeved on the outside of the support rod 32 and the clamping block 33. The buffer sleeve 30 is made of silicone. The cutting blade 41 passes through the buffer sleeve 30. A silicone connecting cover 31 is connected between the buffer sleeve 30 and the operating tube 7. Two sets of silicone connecting covers 31 are symmetrically arranged on both sides of the support rod 32. When the symmetrical clamping block 33 is opened under the elastic action of the expansion torsion spring 34, the silicone connecting cover 31 unfolds and covers the area between the symmetrical clamping block 33 with the upper part of the operating tube 7.

[0045] The symmetrical clamping blocks 33 have blade-retracting grooves 37 on their opposite sidewalls. The cutting blade 41 is slidably disposed within the blade-retracting grooves 37. The cutting blade 41 has an inclined control groove 42, which is inclined outward along the direction from the support rod 32 to the pull rod 35. A pull-out slide groove 38 is connected above the blade-retracting grooves 37. The pull rod 35 is slidably disposed within the pull-out slide groove 38. A pulling spring 39 is connected between the pull rod 35 and the inner wall of the pull-out slide groove 38. A control rod 40 is provided at the lower part of the pull rod 35, and the control rod 40 slides within the control groove 42. In the initial state... Pull rod 35 slides completely into the pull-out groove 38 under the pull of spring 39. At this time, insert control rod 40 is at the end of control groove 42 near support rod 32, and cutting blade 41 slides completely into the retracting groove 37. When pull rope 36 pulls pull rod 35, pull rod 35 partially slides out of pull-out groove 38, insert control rod 40 slides to the end away from support rod 32 in control groove 42 of inclined track, and then the cutting edge of cutting blade 41 slides out of retracting groove 37. The symmetrical cutting blade 41 can be completely closed to complete the cutting operation under the pull of pull rope 36.

[0046] The winding assembly 10 includes a winding frame 43, which is installed within a mounting frame 24. The winding frame 43 is arranged in an inverted U-shape. A winding drum 44 is rotatably mounted on the inner side of the winding frame 43. Gear discs 45 are symmetrically arranged at both ends of the winding drum 44. A first torsion spring connects the gear discs 45 to the winding frame 43. Sharp teeth are evenly distributed on the circumference of the gear discs 45. A pull rope 36 is wound around the winding drum 44. An insertion slot 25 is provided on the inner side of the mounting frame 24, and the winding frame 43 is engaged within the insertion slot 25. Magnetic blocks are provided on the bottom of the winding frame 43 and the bottom wall of the insertion groove 25, so that the winding frame 43 and the mounting frame 24 are attracted to each other. A pressing plate 26 is slidably provided on the side of the mounting frame 24 away from the bearing groove 16. A spring spring 28 is connected between the pressing plate 26 and the mounting frame 24. A stop block 29 is provided on the side of the pressing plate 26 near the mounting frame 24. When the pressing plate 26 is pressed close to the mounting frame 24, the stop block 29 is inserted between the sharp teeth on the circumference of the toothed disc 45, preventing the winding drum 44 from rotating.

[0047] The collection mechanism 4 includes a collection frame 46, which is inserted into the lower part of the collecting block 11. The collection frame 46 is cylindrical and has a sealing ring between it and the collecting block 11. The collection frame 46 is connected to the operating pipe 7 and the suction pipe 12 through the collecting block 11. A fixed post 47 is provided at the center of the inner side of the collection frame 46. Fixed slots 48 are evenly distributed around the circumference of the fixed post 47 near the bottom wall of the collection frame 46. A movable groove 49 is provided in the middle of the fixed post 47, and the movable groove 49 communicates with the evenly distributed fixed slots 48. A collection box 50 is rotatably provided inside the collection frame 46. The collection box 50 is hollow inside and has partition plates 52 evenly distributed around its inner circumference. The partition plates 52 divide the internal space of the collection box 50 into four chambers. A follow-up groove 53 is provided at the end of the partition plate 52 near the center of the collection box 50. A plug-in post 5 is slidably provided at the center of the collection box 50. 1. The insertion post 51 slides along the central axis of the collection box 50. The insertion post 51 is movably sleeved on the fixed post 47. The inner circumference of the insertion post 51 is evenly distributed with conversion blocks 54. The conversion blocks 54 are slidably disposed in the fixed slot 48. When the insertion post 51 slides out of the collection box 50, the conversion blocks 54 slide out of the fixed slot 48 and move in the movable slot 49. The outer wall of the insertion post 51 is evenly distributed with limiting blocks 55. The limiting blocks 55 are slidably disposed in the follower slot 53. The limiting blocks 55 slide along the central axis of the collection box 50. When the insertion post 51 is rotated, the collection box 50 can be driven to rotate in the collection frame 46. The outer wall of the collection box 50 is evenly distributed with feed inlets 56. The feed inlets 56 penetrate the outer wall of the collection box 50 and are located at the center of the adjacent partition plate 52. In the initial state, the feed inlets 56 are connected to the operating pipe 7 and the suction pipe 12 through the collecting block 11.

[0048] Working principle and workflow:

[0049] In practical use, a syringe is used to draw warm saline solution and connect it to the injection port 22; the collection mechanism 4 is inserted and installed into the collection block 11, and the suction tube 12 is connected to the external extraction mechanism. At this time, the inlet 56 of one of the chambers in the collection box 50 is connected to the operating tube 7 and the suction tube 12; the power supply of the miniature camera 13 and the lighting lamp 14 is connected, and the operating tube 7 is inserted into the support tube 1. Under the pressure of the inner wall of the support tube 1, the symmetrical clamps 33 move closer to each other and expand. The torsion spring 34 is compressed, and the silicone cover 31 is retracted until the adjusting tooth groove 8 meshes with the actuating gear 17. At this time, the clamp-type cutting component 9 is in the flexible plug 5 at the end of the support tube 1. Then, the winding component 10 is installed in the mounting frame 24, and the winding frame 43 is inserted into the insertion slot 25. Under the attraction of the magnetic block, the mounting frame 24 and the winding frame 43 are fixed relative to each other. The redundant pull rope 36 is wound onto the winding drum 44 under the elastic action of the first torsion spring. After installation, the curettage operation is performed.

[0050] First, use a speculum to open the patient's vagina and fully expose the cervix. Then, holding the handle 15, slowly insert the end of the flexible plug 5 of the support tube 1 into the cervix, so that the dilator 6 is at the cervical os. Then, slowly inject physiological saline into the dilator 6 through a syringe, so that the dilator 6 dilates the cervix to the required size, which facilitates the overall movement and operation of the device. After dilating the cervix, withdraw the physiological saline through the syringe to completely contract the dilator 6. At this time, the support tube 1 can move inside the cervix.

[0051] Medical staff operate the control panel 19, which rotates clockwise. This rotation, via the transmission belt 20, drives the transition gear 18 to rotate clockwise, which in turn causes the actuating gear 17 to rotate counterclockwise. The actuating gear 17 meshes with the adjusting groove 8, allowing the operating tube 7 to push open the flexible plug 5 and enter the patient's uterine cavity. The insertion depth of the operating tube 7 is controlled by rotating the control panel 19. Under the elastic action of the second torsion spring, the movable end of the limiting plate 21 engages with the arc-shaped protrusion of the control panel 19, positioning the control panel 19 and preventing its rotation from affecting the clamping resection component at the end of the operating tube 7. Position 9; if it is necessary to retract the operating tube 7, twist the limit plate 21 so that it is no longer engaged with the arc-shaped protrusion of the operating plate 19, so that the operating plate 19 can be rotated and the operating tube 7 can be retracted, which is convenient to operate; during the process of the operating tube 7 penetrating the uterine cavity, the distance between the winding frame 43 and the material collection block 11 decreases, and the loose part of the pull rope 36 increases; similarly, when the operating tube 7 retracts, the distance between the winding frame 43 and the material collection block 11 increases, the winding drum releases the line, and under the elastic action of the first torsion spring, the winding drum 44 always winds up the redundant pull rope 36, so that the pull rope 36 is in a taut state;

[0052] The structure and location of excess tissue within the uterine cavity can be clearly seen through the illumination lamp 14 and the miniature camera 13. When the clamp-type resection component 9 pushes open the flexible plug 5 and is placed inside the uterine cavity, under the elastic action of the expansion torsion spring 34, the symmetrical clamp blocks 33 open up to each other, the silicone cover 31 unfolds, and covers the area between the symmetrical clamp blocks 33 with the upper part of the operating tube 7. The pull rod 35 slides completely into the pull-out groove 38 under the pull of the pull spring 39. At this time, the insertion control rod 40 is at the end of the control groove 42 near the support rod 32, and the resection blade 41 slides completely into the receiving groove 37. The silicone buffer sleeve 30 and the silicone cover 31 contact the inner wall of the uterine cavity to prevent the sharp resection blade 41 from damaging the uterus during the movement of the operating tube 7. The location of excess tissue is located through the miniature camera 13, and the clamp-type resection component 9 is moved above it. The external extraction mechanism is opened, and a negative pressure space is formed in a chamber inside the collection box 50 through the suction tube 12, allowing the operating tube to... 7. Excess tissue is aspirated. At this time, medical staff press the actuating plate 26, compressing the spring 28. The stop block 29 on the actuating plate 26 is inserted between the sharp teeth of the toothed disc 45, stopping the winding drum 44 from rotating. The actuating plate 26 causes the mounting frame 24 to move the winding assembly 10 downward, pulling the pull rope 36. This causes the taut pull rope 36 to overcome the elasticity of the pull spring 39 and pull the pull rod 35. The pull rod 35 partially slides out of the pull groove 38, and the insertion control rod 40 is controlled on the inclined trajectory. The blade 41 slides out of the retractable groove 37 and cuts the excess tissue. Under the further pull of the pull rope 36, the elastic force of the expansion torsion spring 34 is overcome, causing the symmetrical clamping block 33 to close. Then, the symmetrical cutting blade 41 can be completely closed under the pull of the pull rope 36 to complete the removal of excess tissue. The cut tissue is sucked into a chamber of the collection box 50 through the operating tube 7. Finally, the external extraction mechanism is closed.

[0053] After removing excess tissue at one location, the pressure plate 26 is released. Under the elastic action of the spring 28, the stop block 29 leaves the toothed disc 45, no longer restricting the winding drum 44 from winding and unwinding the pull rope 36. The mounting bracket 24 resets under the elastic action of the return spring 27. At this time, the pull rope 36 no longer pulls the pull rod 35. Under the combined action of the expansion torsion spring 34 and the pull spring 39, the cutting blade 41 retracts into the blade groove 37, and the clamping block 33 opens again. Then, the operating tube 7 is controlled by the operating panel 19 to move the clamp-type cutting assembly 9 to the next position to be treated for cutting.

[0054] When the clamp-type resection component 9 moves to the next treatment position, the medical staff pulls the insertion and extraction column 51 outward, causing the conversion block 54 to slide out of the fixed slot 48. At this time, the conversion block 54 can rotate in the movable slot 49, and then rotates 90 degrees. Driven by the limiting block 55, the collection box 50 rotates 90 degrees in the collection frame 46, so that the inlet 56 of the next chamber is aligned with the collection block 11. Then, the insertion and extraction column 51 is pushed back to reset, and the conversion block 54 slides back into the fixed slot 48 for positioning. This allows the excess tissue removed in this resection to be collected into a new chamber to distinguish it from the previously removed tissue. The multiple independent chambers in the collection box 50 can correspond to different parts of the uterine cavity, making it easier for medical staff to distinguish the location of the lesion tissue and improve the accuracy of pathological diagnosis.

[0055] After the curettage procedure is completed, press the pressure plate 26 again and pull down the mounting bracket 24 to bring the clamp 33 closer, retract the silicone cover 31, and use the rotating operating plate 19 to retract the operating tube 7 into the support tube 1. Then, the support tube 1 can be removed directly. After that, the collection mechanism 4 is removed for testing, and the adjustable curettage mechanism 3 is removed for cleaning and disinfection.

[0056] It is worth noting that the elastic force of the expansion torsion spring 34 is greater than that of the pull spring 39, and the elastic force of the pull spring 39 is greater than that of the first torsion spring. Therefore, the elastic force of the first torsion spring alone is insufficient to overcome the elastic force of the pull spring 39 to make the pull rod 35 slide out of the clamping block 33, and it is also insufficient to overcome the elastic force of the expansion torsion spring 34 to make the clamping blocks 33 move closer to each other. The external extraction mechanism uses an electric negative pressure suction device, which is existing technology and will not be described in detail here.

[0057] The above is the overall workflow of this invention. Simply repeat this process the next time you use it.

[0058] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0059] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0060] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A gynecological curettage device, comprising a support tube (1), one end of which is provided with a flexible plug (5), and a dilation bladder (6) is provided on the support tube (1), characterized in that: The support tube (1) is provided with a handle-type operating mechanism (2) at one end away from the flexible plug (5). An adjustable scraping mechanism (3) is slidably provided inside the support tube (1). The adjustable scraping mechanism (3) is installed on the upper part of the handle-type operating mechanism (2). A collection mechanism (4) is installed at the end of the adjustable scraping mechanism (3) away from the support tube (1). The adjustable scraping mechanism (3) includes an operating tube (7), a clamp-type cutting component (9), a winding component (10), and a material collection block (11). The operating tube (7) is slidably inserted into the support tube (1). The clamp-type cutting component (9) is located at one end of the operating tube (7) near the flexible plug (5). The material collection block (11) is connected to the other end of the operating tube (7). A suction tube (12) is connected through the material collection block (11). The winding component (10) is movably located at the lower part of one end of the operating tube (7) near the material collection block (11). The handle-type operating mechanism (2) includes a handle (15), an operating plate (19), and a mounting bracket (24). The handle (15) is connected to the end of the support tube (1) away from the flexible plug (5). The upper end of the handle (15) is provided with a bearing groove (16), which is connected to the channel of the support tube (1). The operating tube (7) is movably installed in the bearing groove (16). The operating plate (19) is rotatably mounted on the side wall of the handle (15). The other side wall of the handle (15) is provided with an injection port (22), which is connected to the dilator (6). The side of the handle (15) away from the support tube (1) is provided with a cutting groove (23). The mounting bracket (24) is slidably mounted in the cutting groove (23). A return spring (27) is connected between the mounting bracket (24) and the handle (15). The end of the operating tube (7) is embedded with a miniature camera (13) and a lighting lamp (14). The lighting lamp (14) is located below the miniature camera (13). Adjustment grooves (8) are evenly distributed on the outer side wall of the operating tube (7) near the operating panel (19). The clamp-type cutting assembly (9) includes a support rod (32), clamping blocks (33) and a pull rod (35). The support rod (32) is located at the end of the operating tube (7) and below the lighting lamp (14). Two sets of clamping blocks (33) are symmetrically rotated and located at the lower end of the support rod (32). A torsion spring (34) is connected between the symmetrical clamping blocks (33). The torsion spring (34) is sleeved on the support rod (32). A cutting blade (41) is embedded and slidably provided on the opposite side wall of the symmetrical clamping blocks (33). The pull rod (35) is embedded and slidably provided at the end of the clamping block (33) away from the support rod (32). A pull rope (36) is connected to the pull rod (35). The pull rope (36) passes through the inside of the operating tube (7) and is wound around the winding assembly (10). The support rod (32) and the clamping block (33) are fitted with a buffer sleeve (30), and the cutting blade (41) passes through the buffer sleeve (30). A silicone sleeve (31) is connected between the buffer sleeve (30) and the operating tube (7). Two sets of silicone sleeves (31) are symmetrically arranged on both sides of the support rod (32).

2. The obstetric and gynecological curettage device according to claim 1, characterized in that: The symmetrical clamping blocks (33) have a retractable groove (37) on their opposite sidewalls. The cutting blade (41) is slidably disposed in the retractable groove (37). The cutting blade (41) is inclinedly provided with a control groove (42). A pull-out slide groove (38) is connected above the retractable groove (37). The pull rod (35) is slidably disposed in the pull-out slide groove (38). A pull spring (39) is connected between the pull rod (35) and the clamping block (33). A control rod (40) is provided at the lower part of the pull rod (35). The control rod (40) slides in the control groove (42).

3. The obstetric and gynecological curettage device according to claim 2, characterized in that: The winding assembly (10) includes a winding frame (43), a winding drum (44), and a toothed disc (45). The winding frame (43) is installed in the mounting frame (24) and is arranged in an inverted U-shape. The winding drum (44) is rotatably located on the inner side of the winding frame (43). The toothed disc (45) is symmetrically arranged at both ends of the winding drum (44). A first torsion spring is connected between the toothed disc (45) and the winding frame (43). The toothed disc (45) has sharp teeth evenly distributed on its circumference. The pull rope (36) is wound on the winding drum (44).

4. The obstetric and gynecological curettage device according to claim 3, characterized in that: The mounting bracket (24) has an insertion slot (25) on its inner side. The winding frame (43) is engaged in the insertion slot (25). A pressing plate (26) is slidably provided on the side of the mounting bracket (24) away from the bearing groove (16). A spring spring (28) is connected between the pressing plate (26) and the mounting bracket (24). A stop block (29) is provided on the side of the pressing plate (26) close to the mounting bracket (24). When the pressing plate (26) is pressed close to the mounting bracket (24), the stop block (29) is inserted between the sharp teeth on the circumference of the toothed disc (45).

5. The obstetric curettage device according to claim 4, characterized in that: The bearing groove (16) is provided with a rotating gear (17) on the upper wall of the side near the operating disk (19). The rotating gear (17) meshes with the evenly distributed adjustment grooves (8). The handle (15) is provided with a rotating transition gear (18) on the side wall near the operating disk (19). The transition gear (18) meshes with the rotating gear (17). A transmission belt (20) is wound between the shaft of the transition gear (18) and the shaft of the operating disk (19). The outer side wall of the operation disc (19) is evenly distributed with arc-shaped protrusions, and the side wall of the handle (15) is provided with a limiting plate (21). A second torsion spring is connected between the limiting plate (21) and the handle (15), and the movable end of the limiting plate (21) is engaged with the arc-shaped protrusions of the operation disc (19).

6. The obstetric and gynecological curettage device according to claim 5, characterized in that: The collection mechanism (4) includes a collection frame (46), a fixed column (47), a collection box (50), and a plug-in column (51). The collection frame (46) is inserted into the lower part of the collection block (11). The collection frame (46) is cylindrical. The fixed column (47) is located at the center of the inner side of the collection frame (46). The collection box (50) is rotatably located inside the collection frame (46). The plug-in column (51) is slidably located at the center of the collection box (50). The plug-in column (51) slides along the central axis of the collection box (50). The plug-in column (51) is movably sleeved on the fixed column (47).

7. A gynecological curettage device according to claim 6, characterized in that: The fixed post (47) has a fixed slot (48) evenly distributed around one end near the bottom wall of the collection frame (46), and the fixed post (47) has a movable groove (49) in the middle, which is connected to the evenly distributed fixed slot (48). The inner circumference of the plug-in post (51) is evenly distributed with conversion plugs (54). The conversion plugs (54) are slidably disposed in the fixed slot (48). When the plug-in post (51) slides out of the collection box (50), the conversion plugs (54) slide out of the fixed slot (48) and move in the movable slot (49). The outer wall of the plug-in post (51) is evenly distributed with limiting plugs (55).

8. A gynecological curettage device according to claim 7, characterized in that: The collection box (50) is hollow inside. The internal circumference of the collection box (50) is evenly distributed with partition plates (52). The partition plates (52) divide the internal space of the collection box (50) into four chambers. The partition plate (52) is provided with a follower groove (53) at one end near the center of the collection box (50). The limiting block (55) is slidably disposed in the follower groove (53) and slides along the central axis of the collection box (50). The outer wall of the collection box (50) is evenly distributed with feed inlets (56). The feed inlets (56) penetrate the outer wall of the collection box (50) and are located at the center of the adjacent partition plate (52).

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