A gynecological examination and sampling device that can replace a speculum

Abstract

The application provides a gynecological examination and sampling device which can replace a vaginal speculum, comprising a vaginal dilator, an endoscope mechanism and a sampling mechanism; the vaginal dilator is convenient to fix and operate, ensuring the stability of the examination; the sampling mechanism can move up and down and rotate around the shaft diameter, which can accurately sample the sampling site and improve the sampling accuracy; the sampling head can adjust the angle, which is suitable for sampling requirements of different parts, especially the areas such as the lateral wall of the vagina; the device uses a rotary button combined with a spring reset mechanism, which makes the sampling operation more smooth and can quickly restore to the original position; the connecting mechanism uses a limiting clamping design of a bayonet lock and a clamping plate, which makes the sampling head easy to disassemble and reduces the risk of pollution; the optical fiber endoscope can shoot and transmit images in real time, which assists the doctor in accurate positioning and improves the examination efficiency and accuracy; the application solves the problems of inconvenient operation and low sampling accuracy of the traditional vaginal speculum, realizes the integration of examination and sampling, is suitable for various gynecological examination scenes, and improves the patient comfort and medical efficiency.

Description

Technical Field

[0001] This invention relates to the field of gynecological examination and sampling equipment, and in particular to a gynecological examination and sampling device that can replace a vaginal speculum. Background Technology

[0002] Gynecological examinations are a crucial part of women's reproductive health management. Speculum specula are widely used to dilate the vaginal walls for doctors to observe and collect samples. Clinically, the prevention and treatment of vaginal and cervical diseases necessitates appropriate gynecological examinations, including obtaining vaginal discharge samples from the vagina and fornix using a speculum for testing, and regular cervical cancer screening. Currently, the speculum is an indispensable diagnostic tool in gynecological examinations. While doctors wearing medical gloves can get a general sense of the vagina using only one or two fingers, they cannot fully understand the condition of the vagina and cervix. The speculum must be inserted into the vagina, gradually dilating and gently rotating it to visualize the vaginal walls. However, traditional speculum has several shortcomings in its use. For example, patients often experience fear, tension, and pain during speculum examinations, especially nulliparous or postmenopausal women; furthermore, its relatively fixed structure makes it difficult to adjust flexibly, potentially causing discomfort. In addition, traditional methods for vaginal sampling usually rely on manual sampling with cotton swabs or scrapers, which is not only complicated to operate, but also makes it difficult to ensure the accuracy and sufficiency of the sampling, affecting the pathological analysis results.

[0003] In recent years, with the development of medical technology, gynecological examination equipment has gradually moved towards intelligence and precision. Fiber optic endoscopes have been applied in the field of medical imaging, but how to combine them with sampling mechanisms to achieve integrated examination and sampling remains a key research focus. Furthermore, existing sampling equipment mostly uses fixed-angle sampling, which cannot flexibly adjust the sampling head angle, leading to difficulties in sampling specific areas such as the lateral wall and affecting the comprehensiveness of clinical diagnosis.

[0004] Therefore, we have provided a device that can replace the traditional vaginal speculum and integrate endoscopic examination and efficient sampling functions, making it a gynecological examination and sampling device that can replace the vaginal speculum to improve the efficiency and accuracy of gynecological examinations. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a gynecological examination and sampling device that can replace the vaginal speculum.

[0006] The objective of this invention is achieved as follows: a gynecological examination and sampling device that can replace a vaginal speculum, comprising a dilator and an endoscope mechanism, wherein earrings are provided on both the left and right sides of the upper end of the dilator; a sampling mechanism is provided inside the dilator that can be moved up and down and pulled out, the sampling mechanism comprising a sampling head and a lifting rod mechanism, the sampling head being located inside the dilator that can be moved up and down, and the sampling head being able to rotate around the axis of the dilator inside the dilator; the upper end of the sampling head is detachably connected to the lifting rod mechanism.

[0007] Furthermore, the lifting rod mechanism includes a lifting rod that can move up and down inside the vaginal dilator. The lower end of the lifting rod is connected to the sampling head. A baffle is provided on the lifting rod. A retaining ring is fixedly provided inside the vaginal dilator. The baffle is located inside the vaginal dilator above the retaining ring and can move up and down. The lifting rod can move up and down through the baffle. A top rod is provided at the upper end of the lifting rod. A spring is fitted on the lifting rod. The upper and lower ends of the spring are respectively connected to the baffle and the lower end face of the top rod.

[0008] Furthermore, a connecting mechanism is provided between the sampling head and the lifting rod mechanism to connect the sampling head and the lifting rod mechanism. The connecting mechanism includes a connecting seat, the upper end of which is connected to the lifting rod mechanism. The connecting seat contains two symmetrically distributed and movable left and right locking pins. The outer end of the rear side of the locking pin is a sloped structure that slopes downward towards the middle. The upper end of the sampling head is connected to a connecting plate. Two locking plates are symmetrically arranged on the left and right sides of the upper part of the front side of the connecting plate. The upper part of the inner side of the locking plate is a sloped structure that slopes downward towards the middle. The locking pins are used to lock and limit the locking plates.

[0009] Furthermore, two limiting plates are symmetrically arranged on the connecting plate between the two card plates, and the gap between the two limiting plates is a snap-fit ​​groove. A movable plate is provided in the connecting seat between the two card pins, which can move left and right. The length of the movable plate is equal to the length of the snap-fit ​​groove.

[0010] Furthermore, a connecting rod 1 is connected to the upper part of the middle of the connecting seat. The upper end of the connecting rod 1 is rotatably connected to the lower end of the lifting rod mechanism. Connecting rods 2 are symmetrically and fixedly arranged on the left and right sides of the upper surface of the connecting seat. A pressure rod is connected to the upper part of the connecting rod 2. The lower end of the pressure rod is connected to the connecting rod 2. A sliding groove is opened in the middle of the connecting rod 2. A pressure rod groove is opened laterally in the middle of the connecting rod 2. The lower end of the pressure rod is located in the pressure rod groove, which can move up and down and rotate. A rotating shaft is provided at the lower end of the pressure rod. The rotating shaft is located in the sliding groove, which can move up and down and rotate. The upper part of the pressure rod can move up and down through the baffle and the button. The sliding groove of the connecting rod 2 on the left side extends outward through the left side of the connecting rod 2. The lower part of the lifting rod is a bent structure. The rotating connecting shaft between the connecting rod 1 and the lifting rod mechanism is parallel to the rotating connecting shaft at the bottom of the connecting rod 2 and the pressure rod, and the distance from the sampling head is the same.

[0011] Furthermore, a pressing rod is provided in the lower part of the connecting rod two, which can move up and down. The lower end of the pressing rod can move up and down through the interior of the connecting seat. The inner side of the lower end of the pressing rod is a beveled structure, and the upper part of the outer side of the locking pin is a beveled structure. The beveled structure of the lower end of the pressing rod and the beveled structure of the outer side of the locking pin are mutually matched. A guide rod is fixedly provided at the upper end of the pressing rod. The guide rod can move up and down through the bottom of the pressing rod groove of the connecting rod two. A pressure plate is provided at the upper end of the guide rod. A spring three is fitted on the outer side of the guide rod. The upper and lower ends of the spring three are respectively attached to the pressure plate and the bottom of the pressing rod groove.

[0012] The endoscope mechanism includes a fiber optic endoscope main rod, a fiber optic endoscope body, and a data cable. The fiber optic endoscope main rod is connected to the fiber optic endoscope body, and the data cable is connected to the rear end of the fiber optic endoscope body. The data cable transmits the data obtained by the endoscope mechanism to the rear end for processing and identification. An illumination mechanism is set at the front end of the fiber optic endoscope main rod to illuminate the inside of the human body. The camera mechanism at the front end of the fiber optic endoscope main rod works in conjunction with the fiber optic endoscope body to take pictures of the inside of the human body. The captured data is transmitted to the rear end for processing and identification via the data cable. The fiber optic endoscope main rod and the fiber optic endoscope body are existing technologies and will not be described in detail. As long as they can achieve the above functions, they are sufficient.

[0013] In use, the present invention involves placing a vaginal dilator inside the vagina, then using an endoscope to take pictures of the inside, identifying the area to be sampled by the rear end, and moving the inner end of the dilator to the area to be sampled. The endoscope is then removed, and the sampling mechanism is inserted into the dilator to take a sample from the sampling area.

[0014] During sampling, the sampling mechanism is placed inside the vaginal dilator. At this time, the sampling head is located at the lower end of the dilator. The outer side of the baffle moves in contact with the inner side of the dilator, and the lower outer side of the button moves up and down in contact with the inner side of the dilator. The baffle is then stopped by the retaining ring, preventing the sampling mechanism from moving further down the dilator. The sampling head can move up and down through the retaining ring. At this point, the lower end of the sampling head is located at the lower end of the dilator. When sampling from inside the vagina is required, the button is pressed down. The button moves the push rod downwards, simultaneously moving the lifting rod downwards, thus moving the sampling head downwards. To ensure accurate sampling, the sampling head needs to be rotated to achieve proper contact and contact with the sampling site. This rotation ensures successful sampling and avoids sampling errors caused by the limited contact area of ​​the sampling head. When rotating the sampling head, a button with raised bumps increases friction with the hand, facilitating rotation. The fixed connection between the button, top rod, and lifting rod, along with the connection between the lifting rod and the sampling head, causes the sampling head to rotate, resulting in precise sampling.

[0015] In addition, when sampling the vaginal sidewall, a simply downward-facing sampling head may cause sampling inconvenience or poor sampling results. Therefore, this application is equipped with a rotatable sampling head. When it is necessary to tilt the sampling head to sample the vaginal sidewall, the right end of the pressure rod is pressed down. The lower end of the pressure rod presses down on the connecting rod two, causing the connecting seat to rotate downward. To avoid rotational interference, a groove is provided to ensure that the rotating shaft can move up and down. At the same time, the groove of the connecting rod two on the left side extends outward through the left side of the connecting rod two. When the connecting seat rotates, the pressure rod on the left side will disengage from the groove of the connecting rod two, realizing the tilting of the connecting seat, thereby adjusting the tilt angle of the sampling head. After the sampling head is tilted, the sampling operation of the vaginal sidewall can be performed.

[0016] After sampling, reset the tilt angle of the sampling head. Releasing the button will cause the sampling head to retract into the diffuser tube under the reset action of spring one. Then, remove the entire sampling mechanism and remove the sampling head from the sampling mechanism. To avoid sample contamination caused by direct hand contact with the sampling head and to increase the convenience of use, a connecting mechanism is provided to facilitate the disassembly of the sampling head and avoid direct hand contact. When removing the sampling head, the sampling head resets, meaning that the lower ends of both pressure rods are located in the slide groove. Pressing the pressure rods down simultaneously causes the lower ends of both pressure rods to squeeze the corresponding pressure plates. At this time, the guide rod moves downward, and spring three is compressed. When the guide rod moves downward, it drives the squeezing rod downward. The inclined structure at the lower end of the squeezing rod squeezes the inclined structure on the outer side of the locking pin. During the squeezing process, the locking pin is squeezed. The pin moves to the middle position of the connecting seat. When the pressing rod moves to the lowest point, the outer end of the inclined surface of the rear side of the pin disengages from the limiting effect of the lower surface of the locking plate. The length of the rear part of the pin is below the release groove. The pin disengages from the limiting effect on the connecting plate through the release groove. At this time, the inner end of the pin cooperates with the moving plate to press the second spring. At this time, the second spring is completely located in the spring groove. The inner end of the pin is in contact with the end face of the moving plate, ensuring that the moving plate is directly below the locking groove and releases the limiting effect on the limiting plate. At this time, the sampling head can naturally disengage from the connecting structure by its own weight. Alternatively, the sampling head can be removed by pulling it down with external force. Or, a spring mechanism can be set at the upper end of the connecting plate to disengage the sampling head from the connecting structure by using the elastic force of the spring structure. The specific structure or method is not technically limited, as long as it can achieve the disengagement of the sampling head from the connecting mechanism.

[0017] When installing the sampling head, the above-mentioned connecting mechanism only requires holding the sampling head and aligning the connecting plate at the upper end of the sampling head with the connecting groove at the lower end of the connecting seat (the connecting groove and the connecting plate fit together). When the connecting plate is pushed into the connecting groove, the inclined structure at the outer end of the rear side of the locking pin is subjected to the force of the inclined structure of the locking plate, causing the locking pin to move outward. When the connecting plate is completely located in the connecting groove, the inclined surface of the locking pin disengages from the limiting effect of the inclined surface of the locking plate, and the locking pin resets, thereby limiting and locking the lower end face of the locking plate, and thus limiting the connecting plate and connecting the sampling head.

[0018] During the sampling process of the sampling head, one of the pressure rods may exert a squeezing effect on the connecting rod 2 (causing the guide rod to move downwards, the pressure rod to move downwards, and consequently the locking pin to move inwards, causing one of the locking pins to disengage from the limiting effect on the connecting plate, thus causing the sampling head to disengage from the sampling mechanism). For example, when adjusting the tilt angle of the sampling head, to prevent the locking pin on one side from disengaging from the limiting effect on the locking plate when the pressure rod on one side moves downwards, resulting in only one locking pin having a limiting effect and posing a certain risk of sampling head disengagement, a movable plate that can move left and right is provided in conjunction with springs on both sides. Second, (that is, when the card plate on one side moves towards the middle, because) and when both the locking pins on both sides move downwards to the lowest point, the moving plate will be located directly below the release groove. Therefore, no matter which side's locking pin moves downwards to the lowest point, the moving plate will limit the limiting plate on one side. Combined with the limiting effect of the locking pin and the card plate on the other side, the limiting effect of two positions is formed, which can ensure that the sampling head will not detach from the sampling mechanism and ensure the service life of the connecting mechanism (a single point connection to the sampling head will cause instability after long-term use, and is prone to wear, sampling head detachment and other problems).

[0019] Beneficial effects:

[0020] Convenient dilation and fixation: Earrings are set on both sides of the dilator tube for easy gripping and operation, improving stability during use and enhancing the doctor's control, making the examination smoother.

[0021] Precision sampling mechanism: The sampling mechanism can move up and down and rotate around the diameter of the expansion tube, so that the sampling head can be accurately aligned with the target area, improving sampling accuracy and reducing errors.

[0022] Automatic reset function: The sampling head is connected to the lifting rod mechanism and equipped with a spring, which can realize automatic reset, avoid errors caused by manual adjustment, and improve sampling efficiency.

[0023] Easy-to-use rotation: The button has a raised structure on the outside to enhance friction and make rotation easier, which facilitates the adjustment of the sampling head angle and improves the convenience and accuracy of operation.

[0024] Multi-angle sampling: The sampling head can be adjusted in angle through the pressure bar mechanism to adapt to different sampling needs, especially for areas that are difficult to sample directly, such as the vaginal sidewall, thus improving the comprehensiveness of sampling.

[0025] Interference-free structural design: Through the reasonable layout of connecting rod one and connecting rod two, structural interference is avoided when the sampling head rotates, thereby improving the stability and durability of the equipment.

[0026] Efficient sampling head disassembly method: The sampling head can be quickly disassembled by using a locking and clamping structure with pins and plates, which reduces direct contact with medical personnel, lowers the risk of contamination, and improves the reusability of the equipment.

[0027] Stable connection mechanism: The moving plate cooperates with the double-sided locking pins to ensure that the sampling head is stable and does not fall off during the sampling process, while avoiding loosening of the connecting parts due to long-term use, thus improving the reliability and service life of the equipment.

[0028] Integrated endoscopic examination function: The fiber optic endoscope can capture and transmit data in real time, assisting doctors in accurately locating the sampling site, improving examination efficiency, reducing unnecessary sampling, and improving patient comfort.

[0029] This invention achieves integrated examination and sampling through precise structural design, avoiding the discomfort of traditional vaginal speculum, improving the accuracy and convenience of sampling, and is suitable for various gynecological examination scenarios. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the invention.

[0031] Figure 2 This is a cross-sectional view of the structure of the vaginal dilator of the invention.

[0032] Figure 3 This is a partial structural cross-sectional view of the vaginal dilator of the invention.

[0033] Figure 4 This is a partial structural diagram of the connector of the invention.

[0034] Figure 5 This is a partial structural cross-sectional view of the connector of the invention.

[0035] Figure 6 This is a schematic diagram of the sampling head structure of the invention.

[0036] Figure 7 This is a schematic diagram of the internal structure of the connector of the invention.

[0037] Figure 8 This is a schematic diagram of the upper structure of the sampling mechanism of the invention.

[0038] Figure 9 This is a schematic diagram of the endoscope mechanism of the invention.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Diffuser tube, 2. Earring, 3. Button, 4. Protrusion, 5. Pressure rod, 6. Top rod, 7. Spring 1, 8. Baffle, 9. Retaining ring, 10. Lifting rod, 11. Sampling head, 12. Connecting seat, 13. Squeezing rod, 14. Connecting rod 2, 15. Connecting rod 1, 16. Rotating shaft, 17. Limiting plate, 18. Moving plate, 19. Spring 2, 20. Locking pin, 21. Locking plate, 22. Spring 3, 23. Guide rod, 24. Connecting plate, 25. Lighting mechanism, 26. Fiber optic endoscope main rod, 27. Fiber optic endoscope body, 28. Data cable, 29. Eyepiece. Detailed Implementation

[0041] Example 1, such as Figure 1-9 As shown, the objective of this invention is achieved as follows: a gynecological examination and sampling device that can replace a vaginal speculum, comprising a vaginal dilator 1 and an endoscope mechanism. Earrings 2 are provided on both the left and right sides of the upper end of the vaginal dilator 1, allowing for easy gripping of the dilator 1. A sampling mechanism is movable up and down inside the vaginal dilator 1, which samples from the vaginal area. The sampling mechanism includes a sampling head 11 and a lifting rod 10 mechanism. The sampling head 11 is movable up and down inside the vaginal dilator 1 and can rotate around the axis of the dilator 1. The upper end of the sampling head 11 is detachably connected to the lifting rod 10 mechanism.

[0042] The lifting rod 10 mechanism includes a lifting rod 10, which is movable up and down and located inside the vaginal dilator tube 1. The lower end of the lifting rod 10 is connected to the sampling head 11. A baffle 8 is provided on the lifting rod 10. A retaining ring 9 is fixedly provided inside the vaginal dilator tube 1. The baffle 8 is movable up and down and located inside the vaginal dilator tube 1 above the retaining ring 9. The lifting rod 10 can move up and down through the baffle 8. A top rod 6 is provided at the upper end of the lifting rod 10. A spring 7 is fitted on the lifting rod 10. The upper and lower ends of the spring 7 are respectively connected to the baffle 8 and the lower end face of the top rod 6.

[0043] A button 3 is connected to the upper end of the push rod 6; a ring of protrusions 4 is evenly arranged on the upper outer side of the button 3 to facilitate rotation and other operations. The lower outer side of the button 3 has a chamfered structure to facilitate the insertion of the button 3 and other structures into the vaginal dilator tube 1, with the lower outer side of the button 3 fitting against the inner side of the vaginal dilator tube 1.

[0044] A connecting mechanism is provided between the sampling head 11 and the lifting rod 10 mechanism to connect the sampling head 11 and the lifting rod 10 mechanism. The connecting mechanism includes a connecting seat 12, the upper end of which is connected to the lifting rod 10 mechanism. Two symmetrically distributed and movable locking pins 20 are provided inside the connecting seat 12. The outer end of the rear side of the locking pin 20 is a sloped structure that slopes downward towards the middle. The upper end of the sampling head 11 is connected to a connecting plate 24. Two locking plates 21 are symmetrically arranged on the upper left and right sides of the front side of the connecting plate 24. The upper part of the inner side of the locking plate 21 is a sloped structure that slopes downward towards the middle. The locking pins 20 are used to lock and limit the locking plates 21.

[0045] Two limiting plates 17 are symmetrically arranged on the connecting plate 24 between the two card plates 21. The gap between the two limiting plates 17 is a snap-fit ​​groove. A movable plate 18 is provided in the connecting seat 12 between the two card pins 20, which can move left and right. The length of the movable plate 18 is the same as the length of the snap-fit ​​groove.

[0046] Springs 19 are symmetrically arranged at both ends of the movable plate 18, with each end of spring 19 connected to the movable plate 18 and the locking pin 20, respectively. Spring grooves are provided on both sides of the movable plate 18, with one end of each spring 19 located within one of these grooves. The gap between the locking plate 21 and the limiting plate 17 forms a release groove. The length of the rear portion of the locking pin 20 is equal to the length of the release groove, facilitating the release of the locking pin 20 from its limiting position on the connecting plate 24.

[0047] A guide rod is installed inside the movable plate 18, passing through both ends of the movable plate 18. Two springs 19 are fitted onto the guide rod, and both ends of the guide rod are located within the locking pins 20, allowing them to move left and right respectively. A connecting rod 15 is connected to the upper part of the middle of the connecting seat 12. The upper end of the connecting rod 15 is rotatably connected to the lower end of the lifting rod 10 mechanism. Connecting rods 14 are symmetrically and fixedly installed on the left and right sides of the upper surface of the connecting seat 12. A pressure rod 5 is connected to the upper part of the connecting rod 14, and the lower end of the pressure rod 5 is connected to the connecting rod 14. A sliding groove is opened in the middle of the connecting rod 14, and a groove for the pressure rod 5 is opened laterally in the middle of the connecting rod 14. The lower end of the pressure rod 5 is located at the pressure rod 5, allowing it to move up and down and rotate. Inside the groove, a rotating shaft 16 is provided at the lower end of the pressure rod 5. The rotating shaft 16 is located in the sliding groove and can move up and down. The upper part of the pressure rod 5 passes through the baffle 8 and the button 3, and the sliding groove of the connecting rod 2 14 on the left side extends outward through the left side of the connecting rod 2 14. The lower part of the lifting rod 10 has a bent structure, and the rotating connecting shaft between the connecting rod 1 15 and the lifting rod 10 mechanism is parallel to the rotating connecting shaft at the lowermost end of the connecting rod 2 14 and the pressure rod 5, and is equidistant from the sampling head 11. The structure of connecting rod 1 15 and connecting rod 2 14 ensures that when the sampling head 11 rotates, the outer end of its limited length can contact the guide side wall, or the length of the sampling head 11 can be set as needed. The upper end of the connecting rod 15 is rotatably connected to the lifting rod 10. The lifting rod 10 has a parallel structure at both ends. The connecting rod 15 is fixed to the rear side of the connecting plate 24, which can avoid structural movement interference when the sampling head 11 rotates.

[0048] A pressing rod 13 is installed in the lower part of the connecting rod 14, which can move up and down. The lower end of the pressing rod 13 can move up and down and penetrates the interior of the connecting seat 12. The inner side of the lower end of the pressing rod 13 is a beveled structure, and the upper part of the outer side of the locking pin 20 is a beveled structure. The beveled structure of the lower end of the pressing rod 13 and the beveled structure of the outer side of the locking pin 20 are mutually matched. A guide rod 23 is fixedly installed at the upper end of the pressing rod 13. The guide rod 23 can move up and down and penetrates the bottom of the pressure rod 5 groove of the connecting rod 14. A pressure plate is installed at the upper end of the guide rod 23. A spring 22 is fitted on the outer side of the guide rod 23. The upper and lower ends of the spring 22 are respectively attached to the pressure plate and the bottom of the pressure rod 5 groove.

[0049] The endoscope mechanism includes a fiber optic endoscope main rod 26, a fiber optic endoscope body 27, and a data cable 28. The fiber optic endoscope main rod 26 is connected to the fiber optic endoscope body 27. The data cable 28 is connected to the rear end of the fiber optic endoscope body 27. The data cable 28 transmits the data obtained by the endoscope mechanism to the back end for processing and identification. An illumination mechanism 25 is set at the front end of the fiber optic endoscope main rod to illuminate the inside of the human body. The eyepiece 29 at the front end of the fiber optic endoscope main rod 26 works in conjunction with the fiber optic endoscope body 27 to take pictures of the inside of the human body. The captured data is transmitted to the back end for processing and identification via the data cable 28. The illumination mechanism 25, the fiber optic endoscope main rod 26, the fiber optic endoscope body 27, and the eyepiece 29 are existing technologies and will not be described in detail. As long as they can achieve the above functions, they are sufficient.

[0050] When using this invention, the vaginal dilator 1 is placed inside the vagina, and then the inside is photographed by the endoscope mechanism. The sampling site is identified by the rear end, and the inner end of the vaginal dilator 1 is moved to the sampling site in conjunction with the vaginal dilator 1. The endoscope mechanism is removed, and the sampling mechanism is inserted into the vaginal dilator 1 to take a sample from the sampling site.

[0051] When the sampling mechanism is in operation, it is placed inside the vaginal dilator 1. At this time, the sampling head 11 is located at the lower end of the vaginal dilator 1. The outer side of the baffle 8 moves in contact with the inner side of the vaginal dilator 1, and the lower outer side of the button 3 moves up and down in contact with the inner side of the vaginal dilator 1. The baffle 8 is then stopped by the retaining ring 9, preventing the entire sampling mechanism from moving downwards along the vaginal dilator 1. The sampling head 11 can move up and down through the retaining ring 9. At this time, the lower end of the sampling head 11 is located at the lower end of the vaginal dilator 1. When sampling from inside the vagina is required, the button 3 is pressed down. The button 3 moves the top rod 6 downwards, simultaneously moving the lifting rod 10 downwards, thereby moving the sampling head 11 downwards. To ensure accurate sampling, the sampling head 11 needs to be rotated to make contact with the sampling area. This ensures successful sampling and avoids sampling errors caused by the limited contact area of ​​the sampling head 11. When rotating the sampling head 11 for sampling, the button 3 is rotated. The button 3 has a protrusion 4, which increases the friction between the button and the hand, making it easier to rotate the button 3 and rotate the sampling head 11. When the button 3 is rotated, the button 3, the top rod 6, and the lifting rod 10 are fixedly connected, and the lifting rod 10 is connected to the sampling head 11. Therefore, the rotation will drive the sampling head 11 to rotate, achieving precise sampling operation.

[0052] In addition, when sampling the vaginal sidewall is required, simply pointing the sampling head 11 downwards may cause sampling inconvenience or poor sampling effect. Therefore, this application is provided with a rotatable sampling head 11. When it is necessary to tilt the sampling head 11 to sample the vaginal sidewall, the right end of the pressure rod 5 is pressed down. The lower end of the pressure rod 5 presses down on the connecting rod 14, causing the connecting seat 12 to rotate downwards. In order to avoid rotational interference, a groove is provided to ensure that the rotating shaft 16 can move up and down. At the same time, the groove of the connecting rod 14 on the left side extends outward through the left side of the connecting rod 14. When the connecting seat 12 rotates, the pressure rod 5 on the left side will disengage from the groove of the connecting rod 14, realizing the tilting of the connecting seat 12, thereby driving the adjustment of the tilt angle of the sampling head 11. After the sampling head 11 is tilted, the sampling operation of the vaginal sidewall can be realized.

[0053] After sampling, the sampling head 11 is tilted back to its original angle. Releasing button 3 allows the sampling head 11 to retract into the diffuser tube 1 under the reset action of spring 7. Then, the entire sampling mechanism is removed. To prevent sample contamination from direct hand contact with the sampling head 11 and to increase the ease of use, a connecting mechanism is provided to facilitate disassembly of the sampling head 11 and prevent direct hand contact. When removing the sampling head 11, it resets, meaning the lower ends of both pressure rods 5 are located within the groove. Pressing the pressure rods 5 downwards causes them to simultaneously press against the corresponding pressure plates. At this time, the guide rod 23 moves downwards, and spring 3 22 is compressed. As the guide rod 23 moves downwards, it drives the compression rod 13 downwards. The inclined structure at the lower end of the compression rod 13 presses against the inclined structure on the outer side of the locking pin 20. During the pressing process, the locking pin 20 is moved towards... The connecting seat 12 moves to the middle position. When the pressing rod 13 moves to the lowest point, the outer end of the inclined surface of the rear side of the locking pin 20 disengages from the limiting effect of the lower surface of the locking plate 21. The length of the rear part of the locking pin 20 is below the release groove. The locking pin 20 disengages from the limiting effect of the connecting plate 24 through the release groove. At this time, the inner end of the locking pin 20 cooperates with the moving plate 18 to press the second spring 19. At this time, the second spring 19 is completely located in the spring groove. The inner end of the locking pin 20 is in contact with the end face of the moving plate 18, ensuring that the moving plate 18 is located directly below the locking groove and releases the limiting effect of the limiting plate 17. At this time, the sampling head 11 can naturally disengage from the connecting structure by its own weight. Alternatively, the sampling head 11 can be removed by pulling it down with external force. Alternatively, a spring mechanism can be provided at the upper end of the connecting plate 24 to disengage the sampling head 11 from the connecting structure by means of the elastic force of the spring structure. The specific structure or method is not technically limited, as long as it can achieve the disengagement of the sampling head 11 from the connecting structure.

[0054] When installing the sampling head 11, the above-mentioned connecting mechanism only requires holding the sampling head 11 and aligning the connecting plate 24 at the upper end of the sampling head 11 with the connecting groove at the lower end of the connecting seat 12 (the connecting groove and the connecting plate 24 fit together). When pushing the connecting plate 24 into the connecting groove, the inclined structure at the outer end of the rear side of the locking pin 20 is subjected to the force of the inclined structure of the locking plate 21, causing the locking pin 20 to move outward. When the connecting plate 24 is completely located in the connecting groove, the inclined surface of the locking pin 20 disengages from the limiting effect of the inclined surface of the locking plate 21, and the locking pin 20 resets, thereby limiting and locking the lower end face of the locking plate 21, and thus limiting the connecting plate 24 and connecting the sampling head 11.

[0055] During the sampling process of sampling head 11, the pressure rod 5 on one side may exert a squeezing effect on connecting rod 14 (causing guide rod 23 to move downward, squeezing rod 13 to move downward, which in turn causes locking pin 20 to move inward, causing locking pin 20 on one side to disengage from the limiting effect on connecting plate 24, and causing sampling head 11 to disengage from sampling mechanism). For example, when adjusting the tilt angle of sampling head 11, in order to avoid locking pin 20 on one side disengaging from the limiting effect on locking plate 21 when pressure rod 5 on one side moves downward, resulting in only locking pin 20 on one side having a limiting effect and posing a certain risk of sampling head 11 disengaging, a movable plate 18 that can move left and right is provided to cooperate with the left and right sides. Spring 19 (i.e., when the locking plate 21 on one side moves towards the middle) and when both locking pins 20 on both sides move downwards to the lowest point, the moving plate 18 will be located directly below the release groove. Therefore, no matter which locking pin 20 on one side moves downwards to the lowest point, the moving plate 18 will limit the limiting plate 17 on one side. Combined with the limiting effect of the locking pin 20 and the locking plate 21 on the other side, the limiting effect of two positions is formed to ensure that the sampling head 11 will not detach from the sampling mechanism and to ensure the service life of the connecting mechanism (a single point connection to the sampling head 11 will cause instability after long-term use, and is prone to wear, sampling head 11 falling off and other problems).

[0056] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0057] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A gynecological examination and sampling device that can replace a vaginal speculum, comprising a dilator and an endoscope mechanism, characterized in that: Earrings are provided on both the left and right sides of the upper end of the vaginal dilator tube; a sampling mechanism is provided inside the vaginal dilator tube that can be moved up and down and pulled out. The sampling mechanism includes a sampling head and a lifting rod mechanism. The sampling head is located inside the vaginal dilator tube and can be moved up and down. The sampling head can rotate around the axis of the vaginal dilator tube inside the vaginal dilator tube; the upper end of the sampling head is detachably connected to the lifting rod mechanism. The lifting rod mechanism includes a lifting rod that can move up and down inside the vaginal dilator. The lower end of the lifting rod is connected to the sampling head. A baffle is provided on the lifting rod. A retaining ring is fixedly provided inside the vaginal dilator. The baffle is located inside the vaginal dilator above the retaining ring and can move up and down. The lifting rod can move up and down through the baffle. A top rod is provided at the upper end of the lifting rod. A spring is fitted on the lifting rod. The upper and lower ends of the spring are respectively connected to the baffle and the lower end face of the top rod. A connecting mechanism is provided between the sampling head and the lifting rod mechanism to connect the sampling head and the lifting rod mechanism. The connecting mechanism includes a connecting seat, the upper end of which is connected to the lifting rod mechanism. The connecting seat has two symmetrically distributed and movable left and right locking pins. The outer end of the rear side of the locking pin is a slope structure that slopes downward towards the middle. The upper end of the sampling head is connected to a connecting plate. Two locking plates are symmetrically arranged on the left and right sides of the upper part of the front side of the connecting plate. The upper part of the inner side of the locking plate is a slope structure that slopes downward towards the middle. The locking pins are used to lock and limit the locking plates. The upper part of the connecting seat is connected to a connecting rod 1. The upper end of the connecting rod 1 is rotatably connected to the lower end of the lifting rod mechanism. The upper surface of the connecting seat is symmetrically and fixedly provided with connecting rods 2 on the left and right sides respectively. The upper part of the connecting rod 2 is connected to a pressure rod. The lower end of the pressure rod is connected to the connecting rod 2. A sliding groove is opened in the middle of the connecting rod 2. A pressure rod groove is opened laterally in the middle of the connecting rod 2. The lower end of the pressure rod is located in the pressure rod groove, which can move up and down and rotate. A rotating shaft is provided at the lower end of the pressure rod. The rotating shaft is located in the sliding groove, which can move up and down and rotate. The upper part of the pressure rod can move up and down through a baffle and a button. The sliding groove of the connecting rod 2 on the left side extends outward through the left side of the connecting rod 2. A pressing rod is installed in the lower part of the connecting rod 2, which can move up and down. The lower end of the pressing rod can move up and down through the interior of the connecting seat. The inner side of the lower end of the pressing rod is a sloping structure, and the upper part of the outer side of the locking pin is a sloping structure. The sloping structure of the lower end of the pressing rod and the sloping structure of the outer side of the locking pin are matched with each other. The connecting seat and sampling head are tilted by pressing down the right pressure rod, and the sampling head is disengaged by pressing down the pressure rods on both sides at the same time.

2. The gynecological examination and sampling device that can replace a vaginal speculum according to claim 1, characterized in that: A button is connected to the upper end of the top rod; a ring of protrusions is evenly arranged on the upper outer side of the button.

3. The gynecological examination and sampling device that can replace a vaginal speculum according to claim 2, characterized in that: The lower outer side of the button has a chamfered structure, and the lower outer side of the button fits against the inner side of the vaginal dilator.

4. The gynecological examination and sampling device that can replace a vaginal speculum according to claim 1, characterized in that: Two limiting plates are symmetrically arranged on the connecting plate between the two card plates. The gap between the two limiting plates is a snap-fit ​​groove. A movable plate is provided in the connecting seat between the two card pins, which can move left and right. The length of the movable plate is the same as the length of the snap-fit ​​groove.

5. A gynecological examination and sampling device that can replace a vaginal speculum according to claim 4, characterized in that: Springs are symmetrically arranged at both ends of the movable plate, and the two ends of the springs are connected to the movable plate and the locking pin, respectively.

6. The gynecological examination and sampling device that can replace a vaginal speculum according to claim 5, characterized in that: The movable plate is provided with spring grooves on both the left and right sides, and one end of the second spring is located in the spring groove.

7. A gynecological examination and sampling device that can replace a vaginal speculum according to claim 6, characterized in that: The gap between the locking plate and the limiting plate is a release groove. The length of the rear part of the locking pin is equal to the length of the release groove, which facilitates the locking pin to release from the limiting position on the connecting plate through the release groove.

8. The gynecological examination and sampling device that can replace a vaginal speculum according to claim 7, characterized in that: The movable plate is equipped with a guide rod that passes through both the left and right ends of the movable plate. Two springs are mounted on the guide rod, and both ends of the guide rod are located in locking pins that can move left and right respectively.

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