Cervical scraping and brushing sampling device for obstetrics and gynecology department

Abstract

The invention relates to the technical field of cervix uteri sampling in the obstetrics and gynecology department, in particular to a cervix uteri scraping and brushing sampling device for the obstetrics and gynecology department, which comprises a fixed tube and a handle fixedly connected to the fixed tube, and further comprises an internal thread frame placed on the inner side of a cylinder body, a driving assembly is arranged between the internal thread frame and the cylinder body, and the handle is fixedly connected to the fixed tube. The internal thread frame is driven to move. Firstly, the limiting frame supports and limits the inside of the cervix uteri, the movable column drives the brush plate to move to make contact with the inside of the cervix uteri through the driving base and the connecting rod, then the brush plate rotates to brush down tissue cells in the cervix uteri to complete sampling, the brush plate moves inwards to be reset and retracted, and the brush plate drives the brushed-down tissue cells to move into the limiting frame; the device can be taken out from the cervix uteri and the vagina of the patient by taking out the tissue cells, the brushed tissue cells are located in the limiting frame, the limiting frame can block other parts in the body of the patient, independence of the brushed tissue cells is guaranteed, it is guaranteed that the tissue cells do not interfere with other parts, and therefore the sampling effect is improved.

Description

Technical Field

[0001] This invention relates to the field of cervical sampling technology in obstetrics and gynecology, and more particularly to a cervical scraping sampling device for obstetrics and gynecology. Background Technology

[0002] In obstetric and gynecological clinical examinations, cervical curettage is a common diagnostic procedure used to collect cervical cell or tissue samples for cytological examination, pathological analysis, or other relevant tests. These examinations are crucial for the early detection of cervical diseases such as cervical cancer and cervicitis, providing doctors with accurate diagnostic information to develop effective treatment plans.

[0003] Chinese Patent Publication No. CN108567450B discloses a cervical sampling brush, including a sampling head and a handle. The sampling head is equipped with a brush, and both the sampling head and the handle have internal chambers. The sampling head has several blood-guiding grooves on its outer wall, which are aligned with the head's axis and separate the brush into several large sections. On the outer surface of the sampling head where the large sections are located, there is a layer of bristle-removing material that can be torn off from the base of the brush and stroked along the bristles from root to tip. Corresponding to the blood-guiding grooves, the handle is filled with sponge. The internal chambers of the handle and the sampling head are connected. The sponge is inserted into the inner cavity of the sampling head and does not come into contact with the wall of the inner cavity. Although the above patent can complete the sampling by brushing down the tissue cells in the cervix, in actual application, when the sampling brush completes the internal scraping and withdraws, the sample it carries is very likely to come into contact with other tissues in the cervix. During the withdrawal process, the sampling brush comes into contact with the cervical wall and other tissues, resulting in the mixing of tissue cells from different parts, affecting the specificity of the sample, making it difficult to ensure that the collected sample comes entirely from the target site, and affecting the sampling effect.

[0004] The present invention aims to solve the problems existing in the above-mentioned patents. To this end, a cervical scraping sampling device for obstetrics and gynecology is proposed, which can ensure the independence of the scraped tissue cells, prevent them from interacting with other parts of the body, and improve the sampling effect. Summary of the Invention

[0005] To overcome the shortcomings of the sampling brush, which easily comes into contact with other tissues of the cervix during the internal scraping and withdrawal process, and causes mixing of tissue cells from different sites, affecting sample specificity and making it difficult to ensure that the collected sample is entirely from the target site, thus affecting the sampling effect, this invention provides a gynecological cervical scraping sampling device that can ensure the independence of the scraped tissue cells, guarantee that there is no interaction with other sites, and improve the sampling effect.

[0006] This invention is achieved through the following technical solution:

[0007] A cervical scraping and sampling device for obstetrics and gynecology includes a fixed tube and a handle fixed to the fixed tube. A cylindrical body is fixedly connected to the fixed tube. The device also includes an internally threaded frame placed inside the cylindrical body. A driving assembly is provided between the internally threaded frame and the cylindrical body for moving the internally threaded frame. A limit frame is engaged with the internally threaded frame for supporting and limiting the cervix. A hollow cylinder is rotatably connected to the inner side of the internally threaded frame. A movable column is slidably connected to the inner side of the hollow cylinder. A hexagonal groove is opened on the left side of the movable column to cooperate with the driving assembly. A connecting spring connects the movable column and the hollow cylinder. Drive seats are fixedly attached to the column at even intervals along the circumference. The drive seats slide through the hollow cylinder. Both the drive seats and the hollow cylinder are rotatably connected to connecting rods. The ends of the corresponding connecting rods are rotatably connected to brush plates located inside the limiting frame. The brush plates move outward to contact the inner wall of the cervix. The brush plates rotate to brush off the tissue cells of the inner wall of the cervix to complete the sampling. Then the brush plates stop rotating and move inward to retract and reset, so that the tissue cells brushed off by the brush plates are retracted without interfering with other parts. The cylinder is provided with protective components to protect the tissue cells on the brush plates.

[0008] Further explanation: The drive assembly includes a guide cylinder fixed to the inside of the cylinder body. A hollow tube is slidably connected between the center positions of the two sides of the guide cylinder. The end of the hollow tube is threaded to the inside of the internal threaded bracket. A drive rod is rotatably connected to the inside of the hollow tube. The right end of the drive rod is hexagonal and is located in the hexagonal groove of the movable column, which is used to drive the movable column to move and rotate. A locking assembly is provided between the drive rod and the fixed tube to lock the drive rod.

[0009] Further explanation: the locking assembly includes a lock head rotatably connected to the end of the hollow tube, and a slotted ring corresponding to the lock head is fixed to the end of the fixed tube.

[0010] Further explanation: The protection component includes a drive tube slidably connected to the inside of the cylinder, a return spring connected between the drive tube and the cylinder, and spring plates symmetrically connected to the outer side of the drive tube. An arc-shaped plate is fixed to the spring plate, and the arc-shaped plates on the front and rear sides contact each other to form a sealed space. A trigger component is provided between the drive tube and the fixed tube to drive the drive tube to move.

[0011] Further explanation: The opening and closing assembly includes a U-shaped plate fixed to the end of the cylinder. The top and bottom of the U-shaped plate are symmetrically provided with guide grooves. The guide grooves are composed of straight sections and inclined sections. Contact rods located in the guide grooves are symmetrically fixed to the outer side of the arc-shaped plate.

[0012] Further explanation: The triggering component includes a fixed rod symmetrically fixed to the outer side of the drive tube. The fixed rod slides through the fixed tube and the cylinder. A swing plate is rotatably connected to the fixed tube. A slotted plate is symmetrically fixed to the swing plate. The slotted plate is slidably connected to the fixed rod and is used to drive the fixed rod to move. A hanging ring is rotatably connected to the handle and is used to lock the swing plate.

[0013] Further explanation: The cervical scraping sampling device for obstetrics and gynecology also includes a positioning component. The positioning component includes an external splined cylinder fixedly fitted around the outer side of the cylinder. An external threaded tube is slidably fitted around the outer side of the external splined cylinder. A connecting plate is rotatably connected to the outer side of the external threaded tube and the outer side of the external splined cylinder at even intervals. A positioning plate is rotatably connected between the tail ends of the corresponding connecting plates for positioning the external splined cylinder. An internal threaded cylinder is rotatably connected around the outer side of the cylinder, and the inner side of the internal threaded cylinder is threadedly connected to the external threaded tube.

[0014] To further explain, the cervical scraping sampling device for obstetrics and gynecology also includes a lighting lamp fixedly mounted on the outer side of the tube. The lighting lamp is located on the left side of the U-shaped plate and is used to illuminate the inside of the cervix.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. First, the limiting frame supports and limits the cervix. The movable column drives the brush plate to move outward and contact the cervix through the drive seat and connecting rod. Then, the brush plate rotates to brush off the tissue cells in the cervix to complete the sampling. Afterward, the brush plate moves inward to reset and retracts. The brush plate carries the brushed tissue cells into the limiting frame, and the device can then be removed from the patient's cervix and vagina. Because the brushed tissue cells are in the limiting frame, the limiting frame can block other parts of the patient's body, ensuring the independence of the brushed tissue cells and preventing the tissue cells from interacting with other parts, thereby improving the sampling effect.

[0017] 2. Under the action of the arc-shaped plates, whenever the limiting frame moves to the outside of the cervix, the two arc-shaped plates swing inward to reset and form a closed space to cover the brush plate, thus covering and protecting the tissue cells on the brush plate. In this way, it can further prevent the brushed tissue cells from interacting with other parts of the patient's body, thereby further ensuring the independence of the tissue cells.

[0018] 3. Under the action of the positioning plate, whenever the cylinder is inserted into the patient's vagina, the positioning plate moves outward to contact the patient's vagina and position the outer spline cylinder, thus positioning the cylinder itself. This makes the device more stable during the sampling process, thereby ensuring the safety of the sampling. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a cross-sectional structural diagram of the cylindrical body of the present invention.

[0021] Figure 3 This is a three-dimensional structural diagram of the internal threaded bracket and the limiting bracket of the present invention.

[0022] Figure 4 This is a three-dimensional structural diagram of the drive seat, connecting rod, and brush plate of the present invention.

[0023] Figure 5 This is a three-dimensional structural diagram of the protective component of the present invention.

[0024] Figure 6 This is a three-dimensional structural diagram of the positioning component of the present invention.

[0025] Figure 7 This is a cross-sectional view of the internally threaded cylinder of the present invention.

[0026] Figure 8 This is a three-dimensional structural diagram of the lighting lamp of the present invention.

[0027] Reference numerals: 1-Fixed tube, 2-Handle, 3-Cylinder body, 4-Guide tube, 41-Hollow tube, 42-Slotted ring, 43-Lock head, 44-Drive rod, 5-Internal threaded bracket, 6-Limit bracket, 7-Hollow tube, 8-Moving column, 9-Connecting spring, 10-Drive seat, 11-Connecting rod, 12-Brush plate, 13-Drive tube, 131-Arc plate, 132-Spring, 133-U-shaped plate, 134-Guide groove, 135-Contact rod, 136-Reset spring, 137-Fixed rod, 138-Swing plate, 139-Straight hole plate, 1310-Hanging ring, 14-External splined cylinder, 141-External threaded tube, 142-Connecting plate, 143-Positioning plate, 144-Internal threaded cylinder, 15-Lighting lamp. Detailed Implementation

[0028] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0029] Example: A cervical scraping sampling device for obstetrics and gynecology, please refer to [link / reference]. Figures 1-5As shown, the device includes a fixed tube 1 and a handle 2 fixed to the bottom of the fixed tube 1. A cylindrical body 3 is fixedly connected to the left side of the fixed tube 1. It also includes a drive assembly, an internal threaded bracket 5, a limiting bracket 6, a hollow cylinder 7, a movable column 8, a connecting spring 9, a drive seat 10, a connecting rod 11, a brush plate 12, and a protective assembly. The internal threaded bracket 5 is placed inside the cylindrical body 3, and a drive assembly is located between the internal threaded bracket 5 and the cylindrical body 3. When the drive assembly operates, it can move the internal threaded bracket 5. The limiting bracket 6 is engaged on the right side of the internal threaded bracket 5, providing internal support and limiting for the cervix. The hollow cylinder 7 is rotatably connected to the inside of the internal threaded bracket 5, and the movable column 8 is slidably connected to the inside of the hollow cylinder 7. The left side of the movable column 8 has a hexagonal groove that mates with the drive assembly. The right end of the movable column 8 is connected to the right inner side of the hollow cylinder 7. Three drive seats 10 are fixedly connected to the left side of the movable column 8 along the circumferential direction, with the connecting spring 9 and the movable column 8. The drive seats 10 slide through the hollow cylinder 7. The drive seats 10 and the right side of the outer side of the hollow cylinder 7 are rotatably connected to the connecting rods 11. The tops of the corresponding connecting rods 11 on the left and right sides are rotatably connected to the brush plates 12. The bristles on the brush plates 12 are evenly spaced into three groups. The brush plates 12 are located in the limiting frame 6. The brush plates 12 move outward to contact the inner wall of the cervix. The brush plates 12 rotate to brush off the tissue cells of the inner wall of the cervix to complete the sampling. Then the brush plates 12 stop rotating and move inward to retract and reset, so that the tissue cells brushed off by the brush plates 12 are retracted without interfering with other parts. A protective component is provided on the cylinder 3. When the protective component is in operation, the protective component can protect the tissue cells on the brush plates 12.

[0030] Please see Figure 2 and Figure 3 As shown, the driving assembly includes a guide cylinder 4, a hollow tube 41, a locking assembly, and a driving rod 44. The guide cylinder 4 is fixedly connected to the inner side of the cylinder 3. The hollow tube 41 is slidably connected between the center positions of the left and right sides of the guide cylinder 4. The right end of the hollow tube 41 is threaded to the inner side of the internal threaded bracket 5. The driving rod 44 is rotatably connected to the inner side of the hollow tube 41. The right end of the driving rod 44 is hexagonal and is located in the hexagonal groove of the movable column 8. The driving rod 44 can drive the movable column 8 to move and rotate. A locking assembly is provided between the driving rod 44 and the fixed tube 1. When the locking assembly is in operation, the locking assembly can lock the driving rod 44. The locking assembly includes a slotted ring 42 and a lock head 43. The lock head 43 is rotatably connected to the left end of the hollow tube 41. The slotted ring 42 is fixedly connected to the left end of the fixed tube 1. The slotted ring 42 corresponds to the lock head 43. The slotted ring 42 and the lock head 43 cooperate to lock the driving rod 44.

[0031] Please see Figure 5As shown, the protection assembly includes a drive tube 13, an arc-shaped plate 131, a spring 132, an opening and closing assembly, a return spring 136, and a trigger assembly. The drive tube 13 is slidably connected to the inner side of the cylinder 3. A return spring 136 is connected between the inner side of the drive tube 13 and the inner side of the cylinder 3. Springs 132 are symmetrically connected to the right side of the outer side of the drive tube 13. Arc-shaped plates 131 are fixed to the right side of the springs 132 on both sides. The arc-shaped plates 131 on both sides contact each other to form a sealed space to protect the tissue cells on the brush plate 12. A trigger assembly is provided between the drive tube 13 and the fixed tube 1. When the trigger assembly operates, it can drive the drive tube 13 to move. The opening and closing assembly includes a U-shaped plate 133 and a contact rod 135. A U-shaped plate 133 is fixed to the right end of the cylinder 3. Guide grooves 134 are symmetrically opened at the top and bottom of the U-shaped plate 133. The guide grooves 134 are composed of straight sections. Composed of an inclined section, the arc plate 131 has contact rods 135 symmetrically fixed to the left side of its outer side, and the contact rods 135 are located in the guide groove 134; the triggering component includes a fixed rod 137, a swing plate 138, a straight hole plate 139 and a hanging ring 1310. The drive tube 13 has a fixed rod 137 symmetrically fixed to the left side of its outer side, and the fixed rod 137 slides through the fixed tube 1 and the cylinder 3. The swing plate 138 is rotatably connected to the right side of the bottom of the fixed tube 1. The upper part of the swing plate 138 has a straight hole plate 139 symmetrically fixed to its upper part, and the straight hole plates 139 on the front and rear sides are slidably connected to the fixed rods 137 on the front and rear sides respectively. When the straight hole plate 139 swings, it can drive the fixed rod 137 to move. The lower part of the handle 2 is rotatably connected to the hanging ring 1310. When the hanging ring 1310 swings and contacts the swing plate 138, it can lock the swing plate 138.

[0032] First, the medical staff grasps handle 2 to move the fixing tube 1. The fixing tube 1 moves the cylinder 3. The cylinder 3 moves the hollow tube 41 through the guide tube 4. The hollow tube 41 moves the internal thread frame 5, which in turn moves all the components on the internal thread frame 5. The cylinder 3 also moves the drive tube 13 through the return spring 136. The drive tube 13 moves the arc plate 131 through the spring 132. First, the arc plate 131 is aligned with the patient's vagina. Then, the handle 2 is moved so that the cylinder 3 and the arc plate 131 move to the right and are inserted into the patient's vagina. At this time, the swing plate 138 is pulled to the left. The swing plate 138 swings to the left, which moves the slotted plate 139 to the right. The slotted plate 139 moves the fixing rod 137 to the right. The drive tube 13 moves to the right, compressing the return spring 136. The rightward movement of the drive tube 13, via the spring 132, causes the arc plate 131 to move to the right. The arc plate 131 then moves the contact rod 135 to the right, sliding within the guide groove 134. When the contact rod 135 reaches the inclined section of the guide groove 134, the guide groove 134 causes the contact rods 135 on both sides to swing outwards. The contact rods 135 then cause the arc plates 131 on both sides to swing outwards and open. The spring 132 is compressed and deformed by the force of the swinging arc plate 131. Consequently, the swing plate 138 swings to the left and contacts the handle 2. Pulling the swing plate 138 to swing to the left stops the movement of the handle 2. Then, the hanging ring 1310 is pulled upwards and swings onto the swing plate 138. The hanging ring 1310 locks the swing plate 138 onto the handle 2, pushing the lock head 43 to move to the right. The movement of the lock head 43 to the right causes the hollow tube 41 to move to the right, which in turn causes the internal thread frame 5 to move to the right. The internal thread frame 5 then causes the limiting frame 6 and the hollow cylinder 7 to move to the right. The limiting frame 6 moves to the right into the cervix, supporting the cervix so that the cervical tissue cells do not contact the brush plate 12. When the lock head 43 moves to the right and is within the slotted ring 42, the movement of the lock head 43 to the right is stopped. The internal thread frame 5 stops moving the limiting frame 6 to the right. The lock head 43 is then turned 90 degrees to engage in the slot. The lock head 43 and the slotted ring 42 work together to lock the hollow tube 41, which in turn causes the internal thread frame 5 and the limiting frame 6 to also engage. When locked, the drive rod 44 is pushed to the right, causing the movable column 8 to move to the right. The connecting spring 9 is compressed, and the movable column 8 moves to the right, causing the drive seat 10 to move to the right. The drive seat 10 moves to the right, which in turn drives the three brush plates 12 to move outward through the connecting rods 11 on both sides. The brush plates 12 move outward and contact the cervix. Since the bristles of the brush plates 12 are divided into three groups, the three groups of bristles of the brush plates 12 contact the internal os, external os, and middle of the cervix, respectively. The drive rod 44 is then stopped moving to the right, and the movable column 8 stops driving the brush plates 12 outward through the drive seat 10 and connecting rods 11. Then, the drive rod 44 is twisted to rotate, which in turn drives the movable column 8 to rotate. The movable column 8 rotates, which in turn drives the drive seat 10 to rotate. The drive seat 10 rotates, which in turn drives the hollow cylinder 7 to rotate.Simultaneously, the drive seat 10 also drives the brush plate 12 to rotate via the connecting rod 11. The rotation of the brush plate 12 brushes off tissue cells from the internal os, external os, and middle part of the cervix to complete the sampling. When there are appropriate tissue cells on the three sets of bristles of the brush plate 12, the drive rod 44 stops rotating, and the drive rod 44 stops driving the movable column 8 to rotate. The brush plate 12 also stops rotating. Pulling the drive rod 44 to move to the left to reset, the drive rod 44 resets and stops limiting the movable column 8. Due to the action of the connecting spring 9, the movable column 8 moves to the left to reset, driving the brush plate 12 to move inward and retract via the drive seat 10 and the connecting rod 11. The brush plate 12 then moves the brushed tissue cells into the limiting frame 6. At this time, the brushed tissue cells will not interact with other parts of the patient's body. Then, the lock head 43 is turned. After a 90-degree repositioning and disengagement, the locking head 43 stops locking the hollow tube 41. Then, pulling the locking head 43 to the left moves the hollow tube 41 to the left, which in turn moves the internal thread frame 5 to the left. The internal thread frame 5 then moves the limiting frame 6 and the hollow tube 7 to the left. The hollow tube 7, via the connecting rod 11, moves the brush plate 12 to the left, which in turn moves the brushed tissue cells to the left. Because the brushed tissue cells are within the limiting frame 6, the limiting frame 6 can block other parts of the patient's body, ensuring the independence of the brushed tissue cells and preventing them from interacting with other parts, thereby improving the sampling effect. When the limiting frame 6 moves forward to the outside of the cervix, stopping the pulling of the locking head 43 and moving the limiting frame 6 and the... When brush plate 12 stops moving forward, the hanging ring 1310 is pulled downwards and disengages from the swing plate 138. Due to the action of the return spring 136, the drive tube 13 moves to the left to reset, causing the fixed rod 137 to move to the left to reset. The fixed rod 137 causes the slotted plate 139 to swing to the left to reset, and the slotted plate 139 causes the swing plate 138 to swing to the right to reset. At the same time, the drive tube 13 moves to the left, which in turn causes the arc plate 131 to move to the left via the spring 132. The arc plate 131 moves to the left, causing the contact rod 135 to move to the left. The guide groove 134 then causes the leftward-moving contact rod 135 to move inwards to reset. The contact rod 135 causes the arc plates 131 on both sides to swing inwards to reset, the spring 132 deforms to reset, and the arc plates 131 on both sides reset. A sealed space is formed to cover the brush plate 12, thus protecting the tissue cells on the brush plate 12. This further prevents the brushed tissue cells from interacting with other parts of the patient's body, thereby further ensuring the independence of the tissue cells. Finally, pulling the handle 2 to the left moves the fixing tube 1 to the left, causing the cylinder 3 and the arc-shaped plate 131 to move to the left outside the patient's vagina. Then, the above operation is repeated to make the arc-shaped plate 131 swing outward and open. The internal threaded frame 5 is twisted in reverse and moves to the right through the thread to disengage from the hollow tube 41. Then, the tissue cells brushed off the brush plate 12 can be scraped off for subsequent testing. Finally, the new internal threaded frame 5 is screwed onto the hollow tube 41 through the thread, causing the arc-shaped plate 131 to swing inward and close.

[0033] Please see Figure 6 and Figure 7 As shown, the cervical scraping sampling device for obstetrics and gynecology also includes a positioning component installed on the cylinder 3. The positioning component includes an outer splined cylinder 14, an external threaded tube 141, a connecting plate 142, a positioning plate 143, and an internal threaded cylinder 144. The outer splined cylinder 14 is fixedly mounted on the outer side of the cylinder 3 along the circumferential direction. The external threaded tube 141 is slidably mounted on the outer side of the outer splined cylinder 14. The connecting plate 142 is rotatably connected to the right side of the outer side of the outer splined tube 141 and the right side of the outer splined cylinder 14 at even intervals along the circumferential direction. The positioning plate 143 is rotatably connected between the tail ends of the corresponding connecting plates 142 on the left and right sides. When the positioning plate 143 moves and contacts the inner wall of the patient's vagina, the positioning plate 143 can position the outer splined cylinder 14, thus completing the positioning of the cylinder 3. The internal threaded cylinder 144 is rotatably connected to the left side of the outer side of the cylinder 3 along the circumferential direction. The inner side of the internal threaded cylinder 144 is threadedly connected to the external threaded tube 141.

[0034] When the cylinder 3 and the arc-shaped plate 131 are inserted into the appropriate position in the patient's vagina, the cylinder 3 also drives the outer spline cylinder 14 to move to the right. The outer spline cylinder 14 drives the outer threaded tube 141 to move to the right. The outer threaded tube 141 and the outer spline cylinder 14 drive the positioning plate 143 to move to the right into the patient's vagina through the connecting plate 142. Then, the medical staff twists the inner threaded cylinder 144 clockwise. The clockwise rotation of the inner threaded cylinder 144 drives the outer threaded tube 141 to move to the right. The movement of the outer threaded tube 141 to the right drives the positioning plate 143 to move outward through the connecting plates 142 on both sides and contact the inner wall of the patient's vagina. When the twisting of the inner threaded cylinder 144 is stopped, the movement of the outer threaded tube 141 to the right stops, and the movement of the positioning plate 143 to the outward stops. At this time, the positioning plate 143 positions the outer spline cylinder 14 through the connecting plate 142, which also positions the cylinder 3. Then, the subsequent operation is carried out to brush and sample the cervical tissue cells. After the cervical tissue cells are brushed off and the sample is collected, the inner threaded cylinder 144 is twisted in reverse. This reverse rotation of the inner threaded cylinder 144, through its threads, moves the outer threaded tube 141 to the left, resetting it. The leftward movement of the outer threaded tube 141, through the connecting plate 142, moves the positioning plate 143 inward, resetting it. The positioning plate 143 then disengages from the patient's vaginal wall. This ensures greater stability during the sampling process, thereby guaranteeing the safety of the sampling.

[0035] Please see Figure 8 As shown, the cervical scraping sampling device for obstetrics and gynecology also includes a lighting lamp 15. The lighting lamp 15 is fixedly mounted on the right side of the outer side of the cylinder 3. The lighting lamp 15 is located on the left side of the U-shaped plate 133. When the lighting lamp 15 is turned on, the lighting lamp 15 can illuminate the inside of the cervix.

[0036] When using this device, turn on the illumination lamp 15 to illuminate the cervix. When the device is no longer needed, turn off the illumination lamp 15. Illuminating the cervix in this way makes sampling easier.

[0037] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A cervical scraping sampling device for obstetrics and gynecology, comprising a fixed tube (1) and a handle (2) fixedly connected to the fixed tube (1), wherein a cylindrical body (3) is fixedly connected to the fixed tube (1), characterized in that, It also includes an internal threaded frame (5) placed inside the cylinder (3), a drive assembly is provided between the internal threaded frame (5) and the cylinder (3) for moving the internal threaded frame (5), a limit frame (6) is snapped onto the internal threaded frame (5) for limiting the internal support of the cervix, a hollow cylinder (7) is rotatably connected to the inside of the internal threaded frame (5), a movable column (8) is slidably connected to the inside of the hollow cylinder (7), a hexagonal groove that mates with the drive assembly is opened on the left side of the movable column (8), a connecting spring (9) is connected between the movable column (8) and the hollow cylinder (7), and drive seats (10) are fixedly connected at even intervals along the circumference of the movable column (8). 0) A sliding through hollow cylinder (7) is provided. A connecting rod (11) is rotatably connected to both the drive seat (10) and the hollow cylinder (7). A brush plate (12) located in the limit frame (6) is rotatably connected between the ends of the corresponding connecting rod (11). The brush plate (12) moves outward to contact the inner wall of the cervix. The brush plate (12) rotates to brush off the tissue cells of the inner wall of the cervix to complete the sampling. Then the brush plate (12) stops rotating and moves inward to retract and reset, so that the tissue cells brushed off by the brush plate (12) are retracted without interfering with other parts. A protective component is provided on the cylinder (3) to protect the tissue cells on the brush plate (12).

2. The cervical scraping and sampling device for obstetrics and gynecology according to claim 1, characterized in that, The drive assembly includes a guide tube (4) fixed to the inside of the cylinder (3). A hollow tube (41) is slidably connected between the center positions on both sides of the guide tube (4). The end of the hollow tube (41) is threaded to the inside of the internal threaded frame (5). A drive rod (44) is rotatably connected to the inside of the hollow tube (41). The right end of the drive rod (44) is hexagonal. The right end of the drive rod (44) is located in the hexagonal groove of the movable column (8) and is used to drive the movable column (8) to move and rotate. A locking assembly is provided between the drive rod (44) and the fixed tube (1) to lock the drive rod (44).

3. The cervical scraping and sampling device for obstetrics and gynecology according to claim 2, characterized in that, The locking assembly includes a lock head (43) rotatably connected to the end of the hollow tube (41), and a slotted ring (42) corresponding to the lock head (43) is fixed to the end of the fixed tube (1).

4. The cervical scraping and sampling device for obstetrics and gynecology according to claim 1, characterized in that, The protective assembly includes a drive tube (13) that is slidably connected to the inside of the cylinder (3). A reset spring (136) is connected between the drive tube (13) and the cylinder (3). A spring plate (132) is symmetrically connected to the outer side of the drive tube (13). An arc plate (131) is fixed on the spring plate (132). The arc plates (131) on the front and rear sides contact each other to form a sealed space. A trigger assembly is provided between the drive tube (13) and the fixed tube (1) to drive the drive tube (13) to move.

5. A cervical scraping and sampling device for obstetrics and gynecology according to claim 4, characterized in that, The opening and closing assembly includes a U-shaped plate (133) fixed to the end of the cylinder (3). The top and bottom of the U-shaped plate (133) are symmetrically provided with guide grooves (134). The guide grooves (134) are composed of straight sections and inclined sections. The outer side of the arc plate (131) is symmetrically fixed with contact rods (135) located in the guide grooves (134).

6. A cervical scraping and sampling device for obstetrics and gynecology according to claim 5, characterized in that, The triggering component includes a fixed rod (137) symmetrically fixed to the outer side of the drive tube (13). The fixed rod (137) slides through the fixed tube (1) and the cylinder (3). A swing plate (138) is rotatably connected to the fixed tube (1). A slotted plate (139) is symmetrically fixed to the swing plate (138). The slotted plate (139) is slidably connected to the fixed rod (137) to drive the fixed rod (137) to move. A hanging ring (1310) is rotatably connected to the handle (2) to lock the swing plate (138).

7. The cervical scraping and sampling device for obstetrics and gynecology according to claim 1, characterized in that, The cervical scraping sampling device for obstetrics and gynecology also includes a positioning component. The positioning component includes an external splined cylinder (14) fixedly fitted on the outer side of the cylinder (3). An external threaded tube (141) is slidably fitted on the outer side of the external splined cylinder (14). A connecting plate (142) is rotatably connected to the outer side of the external threaded tube (141) and the outer side of the external splined cylinder (14) at even intervals. A positioning plate (143) is rotatably connected between the tail ends of the corresponding connecting plates (142) for positioning the external splined cylinder (14). An internal threaded cylinder (144) is rotatably connected to the outer side of the cylinder (3) along the circumferential direction. The inner side of the internal threaded cylinder (144) is threadedly connected to the external threaded tube (141).

8. A cervical scraping and sampling device for obstetrics and gynecology according to claim 5, characterized in that, The cervical scraping sampling device for obstetrics and gynecology also includes a lighting lamp (15) fixedly mounted on the outer side of the cylinder (3). The lighting lamp (15) is located on the left side of the U-shaped plate (133) and is used to illuminate the inside of the cervix.

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