Uterine curettage device with adjustable length and bending angle

Abstract

The invention discloses a length and bending angle adjustable uterine curettage device, and relates to the technical field of medical instruments, the length and bending angle adjustable uterine curettage device comprises a handle, a sleeve rod is mounted at the front end of the handle, a cavity is formed in the sleeve rod, a mounting seat is fixedly mounted at the front end of the sleeve rod, and a bearing is rotatably mounted on the inner wall of the mounting seat; a bending device is arranged, a rack rotates forwards and anticlockwise, meanwhile, the rack drives a front tooth column to rotate anticlockwise, the front tooth column drives the bearing to rotate, the bearing drives the connecting base to rotate downwards, and the connecting base drives the curette body to rotate downwards. The angle of the curette body is adjusted to a proper angle, flexible adjustment can be carried out according to the shape and the size of the uterus of each patient, the flexibility enables the curette body to be better attached to the uterus wall in the operation process, and therefore the safety and the effectiveness of the operation are improved.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a curettage device with adjustable length and bending angle. Background Art

[0002] The uterine curette is a medical device that is mainly used to clean the contents of the uterus during gynecological surgery. With the increasing attention paid to women's health and the advancement of medical technology around the world, the market demand for uterine curettes is expected to continue to grow. With the improvement of medical infrastructure and the popularization of medical services, this market is expected to expand further.

[0003] Patent announcement number CN220588336U discloses a uterine curettage spoon, which provides a uterine curettage spoon and relates to the technical field of gynecological tools, including: a spoon, including a main body, a metal rod fixedly connected to the rear end, used to probe into the inside of the uterus and perform uterine curettage; a handle that can slide on the outside of the metal rod is mounted on the outer side of the end of the metal rod, and the sliding handle can increase the depth of the main body probing into the uterus during operation, and the maximum increased depth is equal to the length of the handle, which is used to adjust in time when the length of the curettage is not enough to ensure that the main body probes into the fundus of the uterus; a locking structure, which is mounted on the outside of the handle and is used to firmly fix the handle on the outside of the metal rod, solving the problem that if the curettage is not long enough and cannot directly reach the fundus of the uterus during use, it will cause difficulty in operation, increased bleeding, increased discomfort of the parturient, and may require another uterine curettage, increasing the number of uterine cavity operations, and increasing the risks of bleeding, infection and uterine cavity adhesions.

[0004] In the above patent, the current uterine curettage spoon has the following problems: when the uterine curettage spoon is used, the patient's uterus is extremely anteverted and anteflexed or the uterus is extremely retroverted and retroflexed, which hinders the spoon from entering the uterine cavity. Generally, the curettage spoon made of metal has a fixed bending amplitude, which affects the scraping of the uterine fundus and bilateral uterine horns. That is, it is difficult for the curette to enter the anteverted and anteflexed or retroverted and retroflexed uterine fundus and uterine horns, which is easy to miss the diagnosis. Therefore, we propose a new uterine curettage device. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a curettage device with adjustable length and bending angle, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: The camshaft is an angularly-shaped member which is adapted to move relative to the camshaft when the handle is touched.

[0007] According to the above technical solution, a scale for marking the rotation angle is provided on the right torsion block.

[0008] According to the above technical solution, the right torsion block is fixedly connected to the end of the rotating rod away from the handle, the rear tooth column is fixedly connected to the outer wall of the rotating rod, the front tooth column is fixedly connected to the outer wall of the center end of the bearing, and the inner wall of the rack is respectively meshed with the outer walls of the rear tooth column and the front tooth column.

[0009] According to the above technical solution, a sliding rod is slidably arranged inside the rotating rod 1, and the pressing block is installed at an end of the sliding rod away from the rotating rod 1.

[0010] According to the above technical solution, the bending device also includes: a pressing block axially slidably arranged at one end of the rotating rod, and a locking mechanism arranged between the right torsion block and the pressing block for locking the rotation angle of the right torsion block.

[0011] According to the above technical solution, the locking mechanism includes an L-shaped connecting rod, a card block, a slide groove, a card plate and a card groove, the pressing block is installed on the end of the slide rod away from the rotating rod, the L-shaped connecting rod is installed on the outer wall of the pressing block, the card block is installed on the outer wall of the L-shaped connecting rod, the slide groove is opened on the outer wall of the handle, the card plate is installed on the outer wall of the L-shaped connecting rod close to the right torsion block, and the card groove is opened on the outer wall of the right torsion block.

[0012] According to the above technical solution, the L-shaped connecting rod includes a first rod body parallel to the rotating rod one, and a second rod body vertically connected to the first rod body, and the connecting end of the second rod body is fixedly connected to the pressing block; and the clamping block is fixedly set on the first rod body; the clamping plate is fixedly set on the second rod body.

[0013] According to the above technical solution, there are several card slots, and the card plate is located on the movement track of the card slots.

[0014] According to the above technical scheme, an adjustment device for adjusting the size of the scraper is provided on the outer wall of the sleeve rod, and the adjustment device includes a fixed block, a connecting rod, a square, an adjustment rope, a second rotating rod, a winding disk and a left torsion block. The fixed block is installed on the outer wall of the front end of the scraper body, the connecting rod is installed on the inner wall of the fixed block, one end of the scraper plate is rotatably installed on the outer wall of the connecting rod, and the other end of the flexible scraper plate is slidably installed on the inner wall of the slide rail in the scraper body, the square is fixedly installed on the outer wall of the end of the scraper body, the adjustment rope is installed on the end of the flexible scraper plate away from the connecting rod, the second rotating rod is rotatably installed on the outer wall of the handle, and the winding disk and the left torsion block are coaxially installed on the second rotating rod.

[0015] According to the above technical solution, the adjustment device also includes a plurality of guide mechanisms arranged in the sleeve rod and spaced apart along the axial direction of the sleeve rod, the guide mechanisms including: two outer wrapped rollers arranged upper and lower, gears coaxially rotatably connected to the outer wrapped rollers, and a long transmission strip and a short transmission strip, wherein the two ends of the long transmission strip are respectively rotatably mounted on the rotating shafts of the rotating rod 2 and the outer wrapped rollers close to the left torsion block, and the two ends of the short transmission strip are respectively rotatably mounted on the rotating shafts of the outer wrapped rollers in two adjacent guide mechanisms.

[0016] According to the above technical solution, the number of the guide mechanisms is three, and the outer wall of the outer covering roller is in contact with the outer wall of the adjusting rope.

[0017] The present invention provides a curettage device having the following beneficial effects: (1) The invention sets a bending device so that the rack rotates forward counterclockwise, and at the same time, the rack drives the front tooth column to rotate counterclockwise, the front tooth column drives the bearing to rotate, the bearing drives the connecting seat to rotate downward, and the connecting seat drives the scraper body to rotate downward. The scraper body is adjusted to a suitable angle. By designing a bendable scraper body, it can be flexibly adjusted according to the shape and size of the uterus of each patient. This flexibility enables the scraper body to better fit the uterine wall during surgery, thereby improving the safety and effectiveness of the surgery. The L-shaped connecting rod drives the card block and the card plate to move inward, the card block will slide into the inner wall of the slide groove of the handle, and the card plate will be stuck in the card groove on the right twist block, thereby fixing the right twist block, effectively preventing the right twist block from being accidentally touched during use, thereby avoiding the accidental rotation of the scraper body in the patient's uterus, and significantly improving the safety and stability of the surgery.

[0018] (2) The invention provides an adjustment device so that the flexible scraper plate slides forward on the inner wall of the slide rail of the scraper body, and the flexible scraper plate extends forward. The length of the flexible scraper plate extending becomes longer and longer, and the circular range of the flexible scraper plate becomes larger in cooperation with the connecting rod on the fixed block, thereby achieving the effect of adjusting the flexible scraper plate to different sizes. The continuously adjustable design reduces the need for scrapers of various specifications, simplifies the surgical preparation process, and makes the surgical operation more convenient and precise, thereby reducing the surgical time and reducing the patient's discomfort and anxiety. The bottom outer roller and the top outer roller rotate in opposite directions, and at the same time, the rotating rod drives the transmission short bar to rotate. The transmission short bar is connected to the other A-frame to rotate the outer roller on its inner wall. The outer roller contacts the outer wall of the adjustment rope, so that the outer roller provides a forward thrust for the adjustment rope. After the adjustment rope is thrusted, it ensures that the adjustment rope can move forward smoothly even when the scraper body is bent, thereby adjusting the size of the flexible scraper plate to meet different needs during the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale. Obviously, the drawings described below are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without paying creative labor.

[0020] Figure 1a A stereoscopic diagram of a first embodiment of a curettage device according to the present invention; Figure 1b A perspective view of a second embodiment of the curettage device of the present invention; Figure 1c A perspective view of a third embodiment of the curettage device of the present invention; Figure 2a for Figure 1a A stereoscopic view of the curettage device from another perspective; Figure 2b for Figure 1b A stereoscopic view of the curettage device from another perspective; Figure 2c for Figure 1c A stereoscopic view of the curettage device from another perspective; Figure 3 For the present invention Figure 1c A partial cross-sectional schematic diagram of the curettage device shown; Figure 4 For the present invention Figure 1c A schematic cross-sectional view of a bending device in the curettage device shown; Figure 5 For the present invention Figure 4 The enlarged schematic diagram of point A in the middle; Figure 6a for Figure 1a A schematic cross-sectional view of an adjusting device in the curettage device shown; Figure 6b for Figure 6a A schematic diagram of a curette plate in the curettage device shown; Figure 7 For the present invention Figure 6a The enlarged schematic diagram of point B in the middle; Figure 8 A perspective view of a fourth embodiment of a curettage device according to the present invention; Fig. 9 for Figure 8 A schematic diagram showing that the curette body and the sleeve rod in the curettage device are connected by a threaded connection to achieve adjustable length; Fig.10 for Figure 8 A cross-sectional view of the joint between the curette body and the sleeve rod in the curettage device shown.

[0021] In the figure: 1. handle; 11. sleeve rod; 12. mounting seat; 121. bearing; 13. connecting seat; 14. scraper body; 15. sealing sleeve; 16. cover; 2. bending device; 21. turning rod one; 22. right torsion block; 23. rear tooth column; 24. front tooth column; 25. rack; 26. slide rod; 27. pressing block; 28. L-shaped connecting rod; 29. ​​clamping block; 210. slide groove; 211. clamping plate; 212. clamping groove; 3. adjusting device; 31. fixing block; 32. connecting rod; 33. flexible scraper plate; 34. block; 35. adjusting rope; 36. turning rod two; 37. winding disk; 38. left torsion block; 39. type A frame; 310. turning rod three; 311. outer roller; 312. gear; 313. transmission long strip; 314. transmission short strip. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Herein, suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of the present invention, and have no specific meanings by themselves. Therefore, "module", "component" or "unit" can be used mixedly.

[0024] In this document, the terms "upper", "lower", "inner", "outer", "front", "back", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In this document, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Herein "and / or" includes any and all combinations of one or more of the associated listed items.

[0027] Herein, "plurality" means two or more than two, ie, it includes two, three, four, five, etc.

[0028] The present invention provides a curettage device, which adjusts the rotation angle of the front end curette body 14 by providing a bending device (such as the bending device 2 in the following embodiment 1), so that according to actual needs, for example, under the guidance of a visual device (such as an ultrasonic device, etc.), the angle of the curette body 14 can be adjusted in the body by directly rotating a twist block (i.e., a knob) externally, and there is no need to adjust the angle in vitro before entering the body. Moreover, by adjusting the angle of the curette body, the surgical area can be adjusted, which greatly improves the surgical efficiency.

[0029] The curettage device of the present invention is provided with an adjustment device (such as the adjustment device in the following embodiment 2) that can adjust the size of the curette body, so that its size can be adjusted according to actual needs, or its size can be adjusted in real time during the operation to adapt to areas of different sizes, and it has higher flexibility. Of course, in order to improve the user's comfort, it can be adjusted to the minimum size when entering the body, and then the size can be adjusted after entering the body (for example, a scale indicating the corresponding size can be set on the adjustable twist block, and the size can be adjusted with the assistance of a visual device). Of course, in other embodiments, the curette body can also be detachable in a threaded connection or other manner, so that the curette body with a flexible curette plate of different sizes can be directly replaced, see Figure 8-Figure 10 .

[0030] The curettage device of the present invention is provided with a telescopic handle so that the length of the curettage device can be adjusted according to actual needs, or the handle and the sleeve rod are provided with a threaded connection, and / or the curette body and the connecting seat are provided with a threaded connection, so that the length of the curettage device can be adjusted by adjusting the length of the threaded connection between the two.

[0031] The curettage device of the present invention may be provided with only the bending device 2, or only the adjusting device and the flexible scraper plate, or may be provided with both the bending device 2 and the adjusting device 3, and most of the components of the two are provided in the same sleeve rod.

[0032] Example 1: Please refer to Figure 1a-Figure 5 The present invention provides a curettage device, including a handle 1, a sleeve rod 11 is installed at the front end of the handle 1, a cavity is opened inside the sleeve rod 11, and a scraper body 14 is rotatably connected to the front end of the sleeve rod 11; specifically, a mounting seat 12 is provided at the front end of the sleeve rod 11, a bearing 121 is rotatably installed on the inner wall of the mounting seat 12, a connecting seat 13 is fixedly installed on the outer wall of the bearing 121, a scraper body 14 is provided at the front end of the connecting seat 13, a slide rail is opened inside the scraper body 14, a sealing sleeve 15 is provided at the joint between the connecting seat 13 and the scraper body 14, and a bending device 2 is provided on the handle 1 for facilitating the adjustment of the rotation angle (or bending angle) of the scraper body 14.

[0033] In some embodiments, the bending device 2 includes a rotating rod 21, a right torsion block 22, a rear tooth column 23, a front tooth column 24 and a rack 25. The rotating rod 21 passes through and is rotatably installed on the outer wall of the handle 1. The right torsion block 22 is installed on the end of the rotating rod 21 away from the handle 1. The right torsion block 22 is fixedly connected to the end of the rotating rod 21 away from the handle 1.

[0034] The existing scraper is made of metal and is made by a molding process, that is, the bending amplitude of the scraping part of the front end of the scraper is fixed, while in this embodiment, the right torsion block 22 can be rotated, and the right torsion block 22 drives the rotating rod 21 to rotate, and the rear tooth column 23 is installed on the outer wall of the rotating rod 21, and the rear tooth column 23 and the outer wall of the rotating rod 21 are fixedly connected, and the rotating rod 21 drives the rear tooth column 23 to rotate (that is, the rotating rod 21 serves as the rotating shaft of the rear tooth column 23), and the front tooth column 24 is installed on the outer wall of the center end of the bearing 121, and the front tooth column 24 and the outer wall of the center end of the bearing 121 are fixedly connected, and the two ends of the rack 25 are rotatably installed on the outer walls of the rear tooth column 23 and the front tooth column 24, respectively, and the inner walls of the rack 25 are respectively meshed with the outer walls of the rear tooth column 23 and the front tooth column 24. The rear tooth column 23 meshes with the inner wall of the rack 25, so that the rack 25 rotates forward counterclockwise, and at the same time, the rack 25 drives the front tooth column 24 to rotate counterclockwise, and the front tooth column 24 drives the bearing 121 to rotate, and the bearing 121 drives the connecting seat 13 to rotate downward, and the connecting seat 13 drives the scraper body 14 to rotate downward, and the scraper body 14 is adjusted to a suitable angle (preferably, a scale mark marking the rotation angle of the scraper body 14 can also be set on the right torsion block 22), that is, by designing a flexible scraper body 14, it can be flexibly adjusted according to the uterine shape and size of each patient. This flexibility enables the scraper body 14 to better fit the uterine wall during the operation, thereby improving the safety and effectiveness of the operation.

[0035] Furthermore, in some embodiments, the bending device 2 also includes a slide bar 26, a pressing block 27, an L-shaped connecting rod 28, a clamping block 29, a slide groove 210, a clamping plate 211 and a clamping groove 212. The slide bar 26 is slidably mounted on the inner wall of the rotating rod 21, and the slide bar 26 is fixedly connected to the inner wall of the rotating rod 21. The pressing block 27 is mounted on the end of the slide bar 26 away from the rotating rod 21, and the pressing block 27 is fixedly connected to the end of the slide bar 26 away from the rotating rod 21. When the doctor is operating the scraper body 14, he may accidentally touch the right twisting block 22, causing the scraper body 14 to rotate slightly in the patient's uterus, thereby accidentally injuring the patient. After adjusting the appropriate angle, the pressing block 27 is pushed inward, and the L-shaped connecting rod 28 is mounted on the outer wall of the pressing block 27, and the L-shaped connecting rod 28 is fixedly connected to the outer wall of the pressing block 27. The pressing block 27 drives the slide bar 26 and the L-shaped connecting rod 28 to move inward. The clamping block 29 is installed on the outer wall of the L-shaped connecting rod 28, and the clamping block 29 is fixedly connected with the outer wall of the L-shaped connecting rod 28. The sliding groove 210 is opened on the outer wall of the handle 1, and the clamping block 29 is slidably installed on the inner wall of the sliding groove 210 for fixed connection. The clamping plate 211 is installed on the outer wall of the L-shaped connecting rod 28 close to the right torsion block 22, and the clamping groove 212 is opened on the outer wall of the right torsion block 22. The number of the clamping grooves 212 is several, and the clamping plate 211 is located on the movement trajectory of the clamping groove 212. The L-shaped connecting rod 28 drives the clamping block 29 and the clamping plate 211 to move inward, and the clamping block 29 will slide into the inner wall of the sliding groove 210 of the handle 1, and the clamping plate 211 will be stuck in the clamping groove 212 on the right torsion block 22, thereby fixing the right torsion block 22, effectively preventing the right torsion block 22 from being accidentally touched during use, thereby avoiding the accidental rotation of the scraper body 14 in the patient's uterus, and significantly improving the safety and stability of the operation. That is, by sliding the pressing block 27 at one end of the rotating rod 21 along the axial direction, and setting a locking mechanism for locking the rotation angle of the right twisting block 22 between the right twisting block 22 and the pressing block 27, the right twisting block 22 is prevented from being accidentally touched during use, thereby avoiding the accidental rotation of the scraper body 14 in the patient's uterus, significantly improving the safety and stability of the operation; in addition, due to the setting of the locking mechanism, the rotation angle of the scraper body can be limited, and the stability of the back and forth scraping process of the operation is also guaranteed. Preferably, on the outer wall of the scraper body 14, the multiple slots 212 arranged along the circumferential direction are only distributed on 3 / 4 of the circumferential outer wall, which can lock the scraper body while limiting the rotation angle.

[0036] When the present embodiment is working, since the shape and size of each person's uterus are different, the right torsion block 22 can be rotated to make the right torsion block 22 drive the rotating rod 21 to rotate, and the rotating rod 21 drives the rear tooth column 23 to rotate, and the rear tooth column 23 engages with the inner wall of the rack 25, so that the rack 25 rotates forward counterclockwise, and at the same time the rack 25 drives the front tooth column 24 to rotate counterclockwise, and the front tooth column 24 drives the bearing 121 to rotate, and the bearing 121 drives the connecting seat 13 to rotate downward, and the connecting seat 13 drives the scraper body 14 to rotate downward, and the scraper body 14 is adjusted to a suitable angle. By designing a flexible scraper body 14, it can be flexibly adjusted according to the shape and size of the uterus of each patient. This flexibility enables the scraper body 14 to better fit the uterine wall during the operation, thereby improving the safety and effectiveness of the operation.

[0037] Furthermore, the rotation angle of the scraper body 14 can be mapped to the rotation angle of the right twist block 22 in advance, and then a scale mark marking the rotation angle of the scraper body 14 is set on the right twist block 22, so that the angle of the scraper body 14 can be accurately controlled by the rotation angle of the right twist block 22.

[0038] Of course, the scale mark may not be provided, and the rotation angle may be observed in real time through visual equipment such as ultrasound or CT.

[0039] On the other hand, when the doctor is operating the scraper body 14, he may accidentally touch the right twist block 22, causing the scraper body 14 to rotate slightly in the patient's uterus, thereby accidentally injuring the patient. After adjusting the appropriate angle, the pressing block 27 is pushed inward, and the pressing block 27 drives the slide bar 26 and the L-shaped connecting rod 28 to move inward, and the L-shaped connecting rod 28 drives the clamping block 29 and the clamping plate 211 to move inward, and the clamping block 29 will slide into the inner wall of the slide groove 210 of the handle 1, and the clamping plate 211 will be clamped into the clamping groove 212 on the right twisting block 22, thereby fixing the right twisting block 22, effectively preventing the right twisting block 22 from being accidentally touched during use, thereby avoiding the accidental rotation of the scraper body 14 in the patient's uterus, and significantly improving the safety and stability of the operation.

[0040] In other embodiments, on the one hand, in order to adapt to the shapes of uteri of different sizes, on the other hand, considering that when the curette body is bent at a larger angle, the overall length of the device (i.e., the length along the axial direction) becomes shorter, therefore, in addition to adjusting the angle of the curette body, the length of the entire device may also need to be adjusted. Specifically, the handle may adopt a handle with a retractable structure, for example, the handle in the prior art CN220588336U. In other embodiments, in order to ensure stability during the operation, the handle 1 and the sleeve rod 11 are threadedly connected. Specifically, the handle 1 includes a first main body that is connected to the sleeve rod 11 (e.g., threaded or fixedly connected), and a second main body threadedly connected to the first main body, so that the length of the threaded connection between the first main body and the second main body can be adjusted. In other embodiments, see Fig. 9 , a threaded connection is adopted between the scraper body 14 and the connecting seat 13. Specifically, a threaded rod with a certain length is provided on the connecting seat 13, and an internal thread that can cooperate with the threaded rod is provided in the scraper body 14, so that the length of the whole device can be adjusted by the length of the threaded cooperation between the two. Further, in order to prevent the intrauterine secretion from affecting the gap or clearance between the two, the sealing sleeve 15 is made of elastic material, so that when the distance between the scraper body and the connecting seat 13 becomes larger (making the length of the device longer), the sealing sleeve 15 can be stretched to seal the distance.

[0041] Example 2: Please refer to Figure 6a-Figure 7 On the basis of the above embodiment, in another embodiment of the present invention, the scraper plate 33 is made of a flexible material (of course, although the scraper plate 33 is bendable, in order to ensure a certain force during the scraping process, the scraper plate 33 still has a certain hardness, such as a curlable steel belt, similar to the steel belt used for a tape measure; further, in order to ensure flexibility and hardness at the same time, the width of the steel belt gradually decreases from the middle to both sides, so that the two sides are scraper-shaped; of course, in order to further increase the force, a plurality of reinforcing ribs are arranged at intervals along the length direction on the side used for scraping), and also includes an adjustment device 3 for adjusting the size of the scraper plate, the adjustment device 3 includes a driving module installed on the sleeve rod 11, an adjustment rope 35 connected to the driving module at one end, and the other end of the adjustment rope 35 is connected to one end of the scraper plate 33 after passing through a plurality of guide mechanisms arranged at intervals along the length direction of the sleeve rod 11 in sequence, and the other end of the scraper plate 33 is rotatably connected to the scraper body 14.

[0042] In some specific embodiments, the adjusting device 3 includes a fixed block 31, a connecting rod 32, a block 34, an adjusting rope 35, a rotating rod 36, a winding disk 37 and a left twisting block 38. The fixed block 31 is mounted on the outer wall of the front end of the scraper body 14, and the fixed block 31 is fixedly connected to the outer wall of the front end of the scraper body 14. The connecting rod 32 is mounted on the inner wall of the fixed block 31, and the connecting rod 32 is fixedly connected to the inner wall of the fixed block 31. One end of the flexible scraper plate 33 is rotatably mounted on the outer wall of the connecting rod 32, and the other end of the scraper plate 33 is slidably mounted on the inner wall of the slide rail of the scraper body 14. The block 34 is fixedly mounted on the outer wall of the end of the scraper body 14, the adjusting rope 35 is mounted on the end of the flexible scraper plate 33 away from the connecting rod 32, the adjusting rope 35 is slidably mounted on the inner wall of the block 34, the rotating rod 36 is rotatably mounted on the outer wall of the handle 1, the winding disk 37 is fixedly mounted on the outer wall of the rotating rod 36, and the adjusting rope 35 is mounted on the inner wall of the rotating rod 36. The other end is rotatably mounted on the outer wall of the winding disc 37, and the left twist block 38 is fixedly mounted on the outer wall of the winding disc 37 away from the handle 1. When meeting the different needs of different patients, it is necessary to constantly replace the curettage device, which will prolong the operation time and increase the patient's discomfort and anxiety. When the size of the curette needs to be adjusted, the left twist block 38 is rotated clockwise, and the left twist block 38 drives the winding disc 37 to rotate, and the winding disc 37 drives the rotating rod 2 36 to rotate on the outer wall of the handle 1. At the same time, the winding disc 37 moves the adjustment rope 35 forward, and the adjustment rope 35 drives the scraper plate 33 to slide forward on the inner wall of the block 34. The scraper plate 33 slides forward on the inner wall of the slide rail of the scraper body 14, and the scraper plate 33 extends forward. The length of the scraper plate 33 extending out is getting longer and longer, and the connecting rod 32 on the fixed block 31 makes its circular range larger (for example, the setting of the fixed block 31 makes the tangent at the fixed end of the scraper plate 33 (such as Figure 6b The dotted line in the middle shows the direction of movement of the scraper plate 33 (as shown in FIG. Figure 6b The curette plate 33 is adjusted to different sizes by changing the angle (as shown by the double-headed arrow in the figure), so that the curette plate 33 is adjusted to different sizes. The continuously adjustable design reduces the need for curettes of various specifications, simplifies the surgical preparation process, and makes the surgical operation more convenient and accurate, thereby reducing the surgical time and reducing the patient's discomfort and anxiety.

[0043] In some embodiments, see Figure 7The adjusting device 3 also includes a type A frame 39, a rotating rod 310, upper and lower outer rollers 311, upper and lower gears 312, a transmission strip 313 and a transmission strip 314. The type A frame 39 is fixedly mounted on the outer wall of the sleeve rod 11 (preferably, arranged on the inner wall of the inner cavity of the sleeve rod 11). The number of type A frames 39 is three. The rotating rod 310 passes through and is rotatably mounted on the outer wall of the type A frame 39. The outer roller 311 is fixedly mounted on the outer wall of the center end of the rotating rod 310. The outer wall of the outer roller 311 contacts the outer wall of the adjusting rope 35. The gear 312 is fixedly mounted on the outer wall of the rotating rod 310 away from the sleeve rod 11. The two gears 312 form a group, and each group of gears 312 meshes with each other. The two ends of the transmission strip 313 are respectively rotatably mounted on the outer walls of the rotating rod 2 36 and the rotating rod 310. The two ends of the transmission strip 314 are respectively rotatably mounted on the outer wall of the rotating rod 310 close to the sleeve rod 11. When the connecting seat 13 is connected to the scraper body 1 After being bent, the adjusting rope 35 will encounter resistance and will not be convenient to extend forward. When the second rotating rod 36 is rotated, the second rotating rod 36 drives the transmission strip 313 to rotate, and the other end of the transmission strip 313 drives the third rotating rod 310 to rotate. The third rotating rod 310 drives the outer roller 311 and the gear 312 to rotate clockwise. Each set of gears 312 meshes with each other, so that the outer roller 311 at the bottom and the outer roller 311 at the top rotate in opposite directions. At the same time, the third rotating rod 310 drives the transmission strip 314 to rotate. The transmission strip 314 is connected to the other A-frame 39, and the outer roller 311 on its inner wall rotates. The outer roller 311 contacts the outer wall of the adjusting rope 35, so that the outer roller 311 provides a forward thrust for the adjusting rope 35. After the adjusting rope 35 is thrusted, it is ensured that even when the scraper body 14 is bent, the adjusting rope 35 can move forward smoothly, thereby adjusting the size of the flexible scraper plate 33 to meet different needs during surgery.

[0044] When the present embodiment is working, it is necessary to constantly replace the curettage device to meet the different needs of different patients, which will extend the operation time and increase the patient's discomfort and anxiety. When the size of the curette needs to be adjusted, the left torsion block 38 is rotated clockwise, and the left torsion block 38 drives the winding disc 37 to rotate, and the winding disc 37 drives the rotating rod 2 36 to rotate on the outer wall of the handle 1. At the same time, the winding disc 37 moves the adjustment rope 35 forward, and the adjustment rope 35 drives the curette plate 33 to slide forward on the inner wall of the block 34. The curette plate 33 slides forward on the inner wall of the slide rail of the curette body 14, and the curette plate 33 extends forward. The length of the curette plate 33 extending is getting longer and longer, and the connecting rod 32 on the fixed block 31 makes its circular range larger, thereby achieving the effect of adjusting the different sizes of the curette plate 33. The continuously adjustable design reduces the demand for curettes of various specifications, simplifies the surgical preparation process, and makes the surgical operation more convenient and accurate, thereby reducing the operation time and reducing the patient's discomfort and anxiety.

[0045] When the connecting seat 13 and the scraper body 14 are bent, the adjusting rope 35 will encounter resistance and will not be convenient to extend forward. When the rotating rod 2 36 is rotated, the rotating rod 2 36 drives the transmission strip 313 to rotate, and the other end of the transmission strip 313 drives the rotating rod 310 to rotate. The rotating rod 310 drives the outer roller 311 and the gear 312 to rotate clockwise, and each set of gears 312 are meshed with each other, so that the outer roller 311 at the bottom and the outer roller 311 at the top rotate towards each other. At the same time, the rotating rod 310 drives the transmission short strip 314 to rotate, and the transmission short strip 314 is connected to the other A-frame 39, and the outer roller 311 on its inner wall rotates, and the outer roller 311 contacts the outer wall of the adjusting rope 35, so that the outer roller 311 provides a forward thrust for the adjusting rope 35. After the adjusting rope 35 is thrusted, it is ensured that the adjusting rope 35 can move forward smoothly even when the scraper body 14 is bent, thereby adjusting the size of the flexible scraper plate 33 to meet different needs during surgery.

[0046] Of course, in other embodiments, see Figure 1b and Figure 2b In order to avoid discomfort or secondary injury to the patient caused by the guide mechanism during the operation, a cover 16 for covering the plurality of guide mechanisms is provided on the sleeve rod 11. More preferably, see Figure 1c and Figure 2c , the guide mechanism is arranged in the cavity of the sleeve rod 11. Preferably, the outer roller 311 and the gear 312 are arranged on the inner wall of the sleeve rod 11 through the above-mentioned A-frame 39. Furthermore, in order to avoid mutual interference between the guide mechanism and the above-mentioned rack 15, etc., a partition is arranged between the two to divide the inner cavity of the sleeve rod 11 into two independent chambers.

[0047] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0048] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A curettage device with adjustable length and bending angle, comprising a handle (1), characterized in that: The front end of the handle (1) is provided with a sleeve rod (11), the front end of the sleeve rod (11) is installed with a mounting seat (12), the inner wall of the mounting seat (12) is rotatably installed with a bearing (121), the outer wall of the bearing (121) is fixedly installed with a connecting seat (13), the front end of the connecting seat (13) is provided with a scraper body (14), the front end of the scraper body (14) is provided with a scraper plate (33), a sealing sleeve (15) is provided at the joint between the connecting seat (13) and the sleeve rod (11), and the handle (1) and the sleeve rod (11) are provided with a tool for adjusting the scraper body (14). The bending device (2) comprises a rotating rod (21), a right torsion block (22), a rear tooth column (23), a front tooth column (24) and a rack (25); the rotating rod (21) penetrates and is rotatably mounted on the outer wall of the handle (1); the right torsion block (22) is mounted on an end of the rotating rod (21) away from the handle (1); the rear tooth column (23) is coaxially mounted on the rotating rod (21); the front tooth column (24) is coaxially mounted on the bearing (121); and the two ends of the rack (25) are respectively meshed with the rear tooth column (23) and the front tooth column (24).

2. A curettage device with adjustable length and bending angle according to claim 1, characterized in that: The right twist block (22) is provided with a scale for marking the rotation angle.

3. A curettage device with adjustable length and bending angle according to claim 1, characterized in that: The bending device (2) further comprises: a pressing block (27) slidably arranged along the axial direction at one end of the rotating rod (21), and a locking mechanism arranged between the right torsion block (22) and the pressing block (27) and used to lock the rotation angle of the right torsion block (22).

4. A curettage device with adjustable length and bending angle according to claim 3, characterized in that: A sliding rod (26) is slidably disposed inside the rotating rod one (21), and the pressing block (27) is mounted on an end of the sliding rod (26) away from the rotating rod one (21).

5. The curettage device with adjustable length and bending angle according to claim 3, characterized in that: The locking mechanism comprises: an L-shaped connecting rod (28), a clamping block (29), a sliding groove (210), a clamping plate (211) and a clamping groove (212); the L-shaped connecting rod (28) is mounted on the outer wall of the pressing block (27); the clamping block (29) is mounted on the outer wall of the L-shaped connecting rod (28); the sliding groove (210) is formed on the outer wall of the handle (1); the clamping plate (211) is mounted on the outer wall of the L-shaped connecting rod (28) close to the right twisting block (22); and the clamping groove (212) is formed on the outer wall of the right twisting block (22).

6. The curettage device with adjustable length and bending angle according to claim 5, characterized in that: The L-shaped connecting rod (28) comprises a first rod body parallel to the rotating rod 1 (21), and a second rod body vertically connected to the first rod body, the connecting end of the second rod body is fixedly connected to the pressing block (27); the clamping block (29) is fixedly arranged on the first rod body; and the clamping plate (211) is fixedly arranged on the second rod body.

7. The curettage device with adjustable length and bending angle according to claim 5, characterized in that: The number of the card slots (212) is several, and the card plate (211) is located on the movement track of the card slots (212).

8. A curettage device with adjustable length and bending angle according to any one of claims 1 to 7, characterized in that: The sleeve rod (11) is provided with an adjusting device (3) capable of adjusting the size of the scraper plate (33), the adjusting device (3) comprising a fixed block (31), a connecting rod (32), a block (34), an adjusting rope (35), a second rotating rod (36), a winding disc (37) and a left twisting block (38), the fixed block (31) being mounted on the outer wall of the front end of the scraper body (14), the connecting rod (32) being mounted on the inner wall of the fixed block (31), and one end of the flexible scraper plate (33) being The first end of the scraper plate (33) is rotatably mounted on the outer wall of the connecting rod (32), and the other end of the scraper plate (33) is slidably mounted on the inner wall of the inner slide rail of the scraper body (14). The block (34) is fixedly mounted on the outer wall of the end of the scraper body (14). The adjustment rope (35) is mounted on the end of the flexible scraper plate (33) away from the connecting rod (32). The second rotating rod (36) is rotatably mounted on the outer wall of the handle (1). The winding disk (37) and the left torsion block (38) are coaxially mounted on the second rotating rod (36).

9. The curettage device with adjustable length and bending angle according to claim 8, characterized in that: The adjustment device (3) further comprises a plurality of guide mechanisms arranged in the sleeve rod (11) and spaced apart along the axial direction of the sleeve rod (11), the guide mechanisms comprising: two outer rollers (311) arranged one above the other, a gear (312) coaxially rotatably connected to the outer rollers (311), and a long transmission strip (313) and a short transmission strip (314), wherein two ends of the long transmission strip (313) are respectively rotatably mounted on the second rotating rod (36) and the outer roller (311) close to the left torsion block (38), and two ends of the short transmission strip (314) are respectively rotatably mounted on the outer rollers (311) in two adjacent guide mechanisms.

10. The curettage device with adjustable length and bending angle according to claim 9, characterized in that: The number of the guide mechanisms is three, and the outer wall of the outer covering roller (311) is in contact with the outer wall of the adjustment rope (35).

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