A gynecological vaginal examination administration device

Abstract

The application discloses a gynecological vaginal examination dosing device, and relates to the technical field of dosing devices, comprising a positioning mechanism, a swing mechanism and a clamping mechanism, wherein the swing mechanism comprises a syringe, a circular frame, an annular lifting platform and a group of rollers one. In the application, the device has a linear propulsion and wave fluctuation movement mode, which has significant advantages compared with a traditional straight-in type applicator. The dynamic up-and-down swing design of the device forms a gradual propulsion track at the front end of the syringe, which conforms to the physiological curvature of the vagina, and more accurately conforms to the longitudinal wrinkles and elastic changes of the vagina, thereby avoiding persistent compression on the lateral wall. The wave-shaped lifting platform converts the vertical force into a gradual contact, and the curved surface design makes the force value change present a transition feature of slow enhancement to maintenance and then weakening, thereby effectively reducing the mucosa traction injury caused by sudden force, reducing the pain and discomfort of the patient, and improving the comfort of medicine application.

Description

Technical Field

[0001] This invention relates to the field of drug delivery device technology, specifically to a drug delivery device for gynecological vaginal examination. Background Technology

[0002] A drug delivery device is a medical device or equipment used to precisely deliver drugs to specific parts of the human body in a specific manner and at a specific dosage. Different types of drug delivery devices differ in structure, principle and usage to meet the needs of different drug types, treatment purposes and drug delivery scenarios.

[0003] During the insertion of vaginal medication devices, due to the small cross-sectional area of ​​the device's tip and its relatively simple structure, the insertion is mainly accomplished by manual operation. However, the vagina has physiological folds and may also have adhesions or be in a tight state. These physiological characteristics make it difficult to achieve stable and accurate insertion by simply inserting the device directly. Direct insertion can easily force open the vaginal folds and cause deviations in insertion depth and angle, thereby scratching the vaginal wall and affecting the final medication effect. Summary of the Invention

[0004] The purpose of this invention is to provide a drug delivery device for gynecological vaginal examination, so as to solve the problems mentioned in the background art, which are easy to damage the vagina and affect the drug delivery effect due to difficulty in insertion.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a drug delivery device for gynecological vaginal examination, comprising: a positioning mechanism, a swinging mechanism, and a locking mechanism;

[0006] The swing mechanism includes:

[0007] The device comprises a syringe, a circular frame, an annular lifting platform, and a set of rollers. A swing ring is fixedly fitted onto the outer wall of the syringe. A support roller is fixedly installed at the bottom of the swing ring. A turntable is movably fitted onto the outer wall of the support roller. A movable column is movably fitted onto the outer wall of the turntable. The annular lifting platform is fixedly inserted inside the movable column. A rotating shaft is movably inserted inside the annular lifting platform. A set of positioning clamps is fixedly installed on the outer wall of the rotating shaft. Lifting rollers are movably inserted inside each of the positioning clamps. A set of lifting rollers is movably inserted inside each of the turntable. A rotating roller is movably inserted inside each of the lifting rollers. The set of rollers is fixedly fitted onto the surface of the rotating roller.

[0008] Preferably, a compression spring is fixedly installed at the bottom of each of the positioning hoops, a positioning ring is fixedly installed at the bottom of each of the compression springs, and the positioning rings are fixedly sleeved on the outer wall of the lifting roller. A drive shaft is movably inserted inside the moving column, and two gears and a longitudinal bevel gear are fixedly sleeved on the outer wall of the drive shaft.

[0009] Preferably, the outer wall of the longitudinal bevel tooth is meshed with a transverse bevel tooth, the outer wall of the rotating shaft is fixedly inserted into the transverse bevel tooth, a set of electric telescopic rods is fixedly installed at the bottom of the inner wall of the rotating shaft, a lifting rod is fixedly installed between the telescopic ends of the set of electric telescopic rods, and two sliders are fixedly installed at the bottom of the moving column.

[0010] Preferably, the outer wall of the swing mechanism is fitted with a positioning mechanism, the positioning mechanism includes an arc plate, the outer wall of the arc plate is fixedly mounted with an installation frame, the outer wall of the installation frame has two through holes, a drive shaft is movably inserted between the inner walls of the two through holes, and a resistance rod is fixedly mounted on the outer wall of the installation frame.

[0011] Preferably, two cylinders are fixedly installed on the top of the mounting frame, and elastic plates are fixedly installed on the bottom of the inner walls of the two cylinders. A circular frame is fixedly installed between the tops of the two elastic plates, and a syringe is movably inserted into the inner surface of the circular frame. Two transverse sliding grooves are opened on the bottom of the inner wall of the mounting frame.

[0012] Preferably, the inner walls of both transverse sliding grooves are movably fitted with sliders, and two racks are fixedly installed on the bottom of the inner wall of the mounting frame, with gears meshing on the outer walls of both racks.

[0013] Preferably, the outer wall of the positioning mechanism is movably fitted with a clamping mechanism, the clamping mechanism including a housing, a resistance rod and a drive shaft are movably inserted inside the housing, two clamping arms are movably fitted on the outer wall of the resistance rod, a fixing rod is fixedly installed on one side of the inner wall of the housing, the outer wall of the fixing rod is movably inserted between the inner walls of the two clamping arms, and a movable seat is movably inserted inside each of the two clamping arms.

[0014] Preferably, guide rods are movably inserted inside both of the movable seats, and return springs are fixedly installed on one side of the outer wall of each of the two guide rods. Two rollers are movably sleeved on the outer wall of each of the two guide rods. Two longitudinal grooves are formed on the inner wall of the outer shell, and two rollers are slidably embedded inside each of the two longitudinal grooves.

[0015] Preferably, a driving arm is movably sleeved on the outer wall of each of the two guide rods, the bottom of each of the two driving arms is fixedly connected to the top of the movable seat, a rolling seat is movably inserted into the inner wall of each of the two driving arms, a rotating rod is movably inserted between the inner walls of the two driving arms, and a push plate is movably inserted into the interior of the housing.

[0016] Preferably, two sets of compression springs are fixedly installed on one side of the outer wall of the push plate, and a fixed crossbeam is fixedly installed between the outer walls of the two sets of compression springs. The outer walls of the two fixed crossbeams are fixedly connected to the inner wall of the outer shell.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. In this invention, the linear propulsion combined with wave-like undulation motion of the device has significant advantages over traditional direct-entry medication applicators. Its dynamic up-and-down swing design allows the syringe tip to form a progressive propulsion trajectory that conforms to the physiological curvature of the vagina, more accurately conforming to the longitudinal folds and elastic changes of the vagina, avoiding continuous pressure on the side walls. The wave-shaped lifting platform transforms vertical force into gradual contact, and its curved surface design makes the force value change present a transitional characteristic of slowly increasing, maintaining, and then decreasing, effectively reducing mucosal traction damage caused by sudden force application, thereby reducing patient pain and discomfort and improving medication application comfort.

[0019] 2. In this invention, the device achieves automatic coordination of advancement and locking through the precise linkage of the push plate, spring, and lever arm system during operation, preventing accidental advancement or leakage of the drug. The locking mechanism, with its rationally designed contact surface and clamping force, effectively avoids excessive drug injection or leakage due to accidental contact or device displacement, ensuring accurate drug release to the target site. This not only guarantees the therapeutic effect but also reduces drug waste. At the same time, the automatic locking can also suppress excessive contact and friction between the front end of the device and the vaginal wall in the non-advancement state, significantly reducing tissue irritation and discomfort, and improving the overall safety and comfort of the operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main body of a drug delivery device for gynecological vaginal examination according to the present invention;

[0021] Figure 2 This is a cross-sectional plan view of the positioning mechanism in a gynecological vaginal examination drug delivery device of the present invention;

[0022] Figure 3 This is a cross-sectional schematic diagram of the positioning mechanism and the swinging mechanism in a gynecological vaginal examination drug delivery device of the present invention;

[0023] Figure 4 This is a schematic diagram of the internal structure of the swing mechanism in a gynecological vaginal examination drug delivery device of the present invention;

[0024] Figure 5 This invention relates to a drug delivery device for gynecological vaginal examination. Figure 4 Enlarged image;

[0025] Figure 6 This is a three-dimensional schematic diagram of the swing mechanism in a gynecological vaginal examination drug delivery device of the present invention;

[0026] Figure 7 This is a diagram showing the internal structure of the locking mechanism in a gynecological vaginal examination drug delivery device according to the present invention.

[0027] Figure 8 This is a perspective view of the locking mechanism in a gynecological vaginal examination drug delivery device according to the present invention.

[0028] In the diagram: 1. Positioning mechanism; 11. Arc plate; 12. Mounting frame; 13. Through hole; 14. Resistance rod; 15. Cylinder; 16. Elastic sheet; 17. Circular frame; 18. Transverse slide groove; 19. Rack; 2. Swinging mechanism; 21. Injector; 22. Swinging ring; 23. Support roller; 24. Turntable; 25. Moving column; 26. Circular lifting platform; 27. Rotating shaft; 28. Positioning hoop; 29. ​​Lifting roller; 210. Compression spring 1; 211. Positioning ring; 212. Rotating roller; 213. Roller 1. Drive shaft; 214. Gear; 215. Longitudinal bevel gear; 216. Transverse bevel gear; 217. Electric telescopic rod; 218. Lifting rod; 219. Sliding block; 220. Clamping mechanism; 31. Housing; 32. Clamping arm; 33. Fixed rod; 34. Moving seat; 35. Guide rod; 36. Return spring; 37. Roller II; 38. Longitudinal slide groove; 39. Drive arm; 310. Rolling seat; 311. Rotating rod; 312. Push plate; 313. Compression spring II; 314. Fixed crossbeam. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Reference Figures 1-3 as well as Figure 7 As shown, the present invention provides a drug delivery device for gynecological vaginal examination, comprising: a positioning mechanism 1, a swinging mechanism 2, and a clamping mechanism 3.

[0031] When using the device, the user first aligns the positioning mechanism 1 with the patient's lower body to ensure the device is stably fixed in the appropriate position, providing a reliable foundation for subsequent operations. Then, the user simply pushes the locking mechanism 3 by hand, allowing it to move smoothly across the surface of the positioning mechanism 1. This action naturally drives the swing mechanism 2 to begin coordinated movement. During this movement, the swing mechanism 2, guided by the positioning mechanism 1 and the internal annular lifting platform 26... Figure 4 The supporting effect drives the top syringe 21 as follows. Figure 3 The device advances gradually through a dynamic up-and-down swinging motion, which simulates a more natural physiological movement trajectory. This avoids the sudden pressure and scraping of the vaginal wall caused by abrupt insertion. Through this gentle and continuous expansion process, the device can effectively reduce the risk of damaging the vaginal mucosa and reduce the pain and discomfort caused by instrument stimulation, thereby significantly improving the comfort of medication application.

[0032] In some instances, refer to Figures 1-6 As shown, the swing mechanism 2 includes:

[0033] The syringe 21, circular frame 17, annular lifting platform 26, and a set of rollers 213 are included. A swing ring 22 is fixedly fitted onto the outer wall of the syringe 21. A support roller 23 is fixedly installed at the bottom of the swing ring 22. A turntable 24 is movably fitted onto the outer wall of the support roller 23. A movable column 25 is movably fitted onto the outer wall of the turntable 24. The annular lifting platform 26 is fixedly inserted inside the movable column 25. A rotating shaft 27 is movably inserted inside the annular lifting platform 26. A set of positioning clamps 28 is fixedly installed on the outer wall of the rotating shaft 27. Lifting rollers 29 are movably inserted inside each of the positioning clamps 28. All of the lifting rollers 29 are movable. Inside the turntable 24, a set of lifting rollers 29 each has a rotating roller 212 movably inserted inside. A set of rollers 213 are fixedly sleeved on the surface of the rotating rollers 212. A set of positioning clamps 28 each has a compression spring 210 fixedly installed at the bottom. A set of compression springs 210 each has a positioning ring 211 fixedly installed at the bottom. A set of positioning rings 211 are fixedly sleeved on the outer wall of the lifting rollers 29. Inside the moving column 25, a drive shaft 214 is movably inserted. The outer wall of the drive shaft 214 is fixedly sleeved with two gears 215 and a longitudinal bevel gear 216. The outer wall of the longitudinal bevel gear 216 is meshed with a transverse gear. The outer wall of the rotating shaft 27 is fixedly inserted into the transverse bevel gear 217. A set of electric telescopic rods 218 are fixedly installed at the bottom of the inner wall of the rotating shaft 27. A lifting rod 219 is fixedly installed between the telescopic ends of the set of electric telescopic rods 218. Two sliders 220 are fixedly installed at the bottom of the moving column 25. A positioning mechanism 1 is sleeved on the outer wall of the swing mechanism 2. The positioning mechanism 1 includes an arc plate 11. An installation frame 12 is fixedly installed on the outer wall of the arc plate 11. Two through holes 13 are opened on the outer wall of the installation frame 12. A drive shaft 214 is movably inserted between the inner walls of the two through holes 13. A resistance rod 14 is fixedly installed on the outer wall of the mounting frame 12. Two cylinders 15 are fixedly installed on the top of the mounting frame 12. Elastic plates 16 are fixedly installed on the bottom of the inner walls of the two cylinders 15. A circular frame 17 is fixedly installed between the tops of the two elastic plates 16. A syringe 21 is movably inserted into the inner wall of the circular frame 17. Two transverse sliding grooves 18 are opened on the bottom of the inner wall of the mounting frame 12. A slider 220 is movably embedded in the inner wall of the two transverse sliding grooves 18. Two racks 19 are fixedly installed on the bottom of the inner wall of the mounting frame 12. Gears 215 are meshed and connected to the outer walls of the two racks 19.

[0034] During vaginal medication administration, the user first fully aligns the flexible contact surface of the arc-shaped plate 11 with the patient's perineal skin. Its arc design conforms to the physiological curve of the human buttocks, ensuring overall device stability. At this point, the tip of the syringe 21 lightly touches the vaginal opening. Next, the user pushes the drive shaft 214 forward linearly within the through-hole 13. The moving column 25 on the outer wall of the drive shaft 214 forms a sliding pair with the transverse slide groove 18 via the bottom slider 220, ensuring that the moving column 25 always moves along a predetermined trajectory, preventing the syringe 21 from deviating and damaging the vaginal sidewall. As the drive shaft 214 advances, its outer surface... The gear 215 on the outer wall meshes with the fixed rack 19, converting linear motion into rotational motion. Simultaneously, the longitudinal bevel teeth 216 on the outer wall rotate synchronously with the drive shaft 214, transmitting power to the transverse bevel teeth 217 via a 90-degree bevel gear transmission. The rotating shaft 27 inside the transverse bevel teeth 217 rotates within the annular lifting platform 26, driving three equidistantly distributed positioning hoops 28 to perform circular motion. The lifting rollers 29 embedded in each positioning hoop 28 drive the rotating roller 212 to rotate through friction. The roller 213 at the end of the rotating roller 212 slides on the surface of the annular lifting platform 26, which is corrugated. The design incorporates a biomimetic principle. When roller 213 passes a crest, compression spring 210 is compressed and stores energy; when it passes a trough, the elastic force is released, creating a periodic up-and-down undulating motion. This undulation is transmitted to syringe 21 via support roller 23 and swing ring 22, causing it to swing and mimic the physiological action of a finger gently probing. During the swinging and advancing process of syringe 21, the circular frame 17 at the other end compresses the bottom elastic plate 16. Utilizing the elastic potential energy of the elastic plate 16 during deformation, the swing amplitude at both ends is consistent, avoiding sudden compression and scraping of the vaginal wall due to abrupt insertion, effectively reducing damage. This reduces the risk of damaging the vaginal mucosa and minimizes pain and discomfort caused by instrument stimulation, improving the comfort of medication application. When the swing amplitude needs to be adjusted, the user can activate the electric telescopic rod 218 via the touch panel. Its lifting rod 219 pushes the support roller 23 to move vertically, changing the contact point height between the rotating roller 212 and the annular lifting platform 26, thereby adjusting the effective stroke of the wavy surface. It is suitable for the general population as well as patients with high vaginal laxity or those with tight vaginas during postpartum recovery. Finally, simply squeeze the piston to inject the medication inside the syringe 21 into the vagina.

[0035] In some instances, refer to Figures 1-4 as well as Figures 6-8As shown, the outer wall of the positioning mechanism 1 is movably fitted with a clamping mechanism 3. The clamping mechanism 3 includes a housing 31. A resistance rod 14 and a drive shaft 214 are movably inserted inside the housing 31. Two clamping arms 32 are movably fitted on the outer wall of the resistance rod 14. A fixing rod 33 is fixedly installed on one side of the inner wall of the housing 31. The outer wall of the fixing rod 33 is movably inserted between the inner walls of the two clamping arms 32. A movable seat 34 is movably inserted inside each of the two clamping arms 32. A guide rod 35 is movably inserted inside each of the two movable seats 34. A return spring 36 is fixedly installed on one side of the outer wall of each of the two guide rods 35. Two rollers 37 are movably fitted on the outer wall of each of the two guide rods 35. The inner wall of the housing 31 has an opening... Two longitudinal slide grooves 38 are provided, and two rollers 37 are slidably embedded inside each of the two longitudinal slide grooves 38. Driving arms 39 are movably sleeved on the outer walls of the two guide rods 35. The bottom of the two driving arms 39 is fixedly connected to the top of the movable seat 34. Rolling seats 310 are movably inserted into the inner walls of the two driving arms 39. A rotating rod 311 is movably inserted between the inner walls of the two driving arms 39. A push plate 312 is movably inserted inside the outer shell 31. Two sets of compression springs 313 are fixedly installed on one side of the outer wall of the push plate 312. A fixed crossbeam 314 is fixedly installed between the outer walls of the two sets of compression springs 313. The outer walls of the two fixed crossbeams 314 are fixedly connected to the inner wall of the outer shell 31.

[0036] When the syringe 21 needs to be pushed forward to complete the vaginal medication application, the user first pushes the push plate 312 with a steady force. After being subjected to force, the push plate 312 begins to move forward along a predetermined track. During its forward movement, it gradually approaches the stationary fixed crossbeam 314 and together compresses the second compression spring 313. At this time, the second compression spring 313 is compressed and stores energy, providing power reserves for the subsequent reset action. When the push plate 312 continues to move forward and contacts the two symmetrically distributed rolling seats 310, the rolling seats 310 begin to rotate backward inside the driving arm 39 under the driving force of the push plate 312. This rotational backward movement causes the two driving arms 39 to rotate relative to each other with the rotating rod 311 as the center. This is manifested by the ends of the two driving arms 39 that are closer to the rolling seats 310 moving closer to each other, while the ends that are farther away from the rolling seats 310 moving further away from each other. The movement of the other end of the driving arm 39 away from each other causes the bottom movable seat 34 and guide rod 35 to move synchronously. During the movement, the roller 37 sleeved on the outer wall of the guide rod 35 slides precisely inside the longitudinal groove 38. This sliding cooperation ensures that the three movable seats 34 always maintain a horizontal linear movement, avoiding deviation of the movement trajectory. At the same time, when the movable seat 34 moves laterally, it is squeezed by the return spring 36 set inside the outer shell 31, so that the return spring 36 is also in a compressed and stored state. As the movable seat 34 continues to move, the distance between the two movable seats 34 gradually increases, which in turn causes the clamping arm 32 on the outer wall to rotate around the fixed rod 33 as the axis. During the rotation, the tops of the clamping arms 32 move away from each other, and the tight clamping state originally formed on the resistance rod 14 is released. At this time, the syringe 21 loses the constraint of the clamping arm 32, and can move forward quickly and smoothly and be inserted into the vagina under the action of the user continuously pushing the push plate 312. During this process, the movable seat 34 located at the bottom of the clamping arm 32 slides upward on the surface of the guide rod 35, ensuring the coordination and stability of the entire movement. When the syringe 21 is inserted to the appropriate depth and needs to be stopped, the user only needs to release the push plate 312. At this time, the compressed compression spring 313 and the return spring 36 begin to extend simultaneously, causing the top of the clamping arm 32 to clamp the resistance rod 14 again. With the reasonable clamping force between the two and the friction generated by the specially designed contact surface, the device can automatically lock when no further advancement is needed. This automatic locking function can effectively prevent the drug from accidentally entering the vagina or leaking out due to accidental contact with the push plate 312 or the movement of the device itself, preventing the drug from being released in the wrong position, affecting the treatment effect or causing drug waste. At the same time, it can also reduce unnecessary friction and collision between the front end of the device and the vaginal wall, comprehensively improving the treatment experience. Moreover, activating the locking function does not require the user to perform any additional operation steps, greatly improving the convenience and safety of the device.

[0037] The wiring diagram of the electric telescopic pole 218 in this invention is common knowledge in the field, and its working principle is a well-known technology. The appropriate model is selected according to actual use. Therefore, the control method and wiring layout of the electric telescopic pole 218 will not be explained in detail.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 drug delivery device for gynecological vaginal examination, characterized in that, include: Positioning mechanism (1), swing mechanism (2) and clamping mechanism (3); The swing mechanism (2) includes: The syringe (21), circular frame (17), annular lifting platform (26), and a set of rollers (213) are provided. A swing ring (22) is fixedly fitted onto the outer wall of the syringe (21). A support roller (23) is fixedly installed at the bottom of the swing ring (22). A turntable (24) is movably fitted onto the outer wall of the support roller (23). A movable column (25) is movably fitted onto the outer wall of the turntable (24). The annular lifting platform (26) is fixedly inserted inside the movable column (25). The surface of the annular lifting platform (26) is... The surface adopts a wave-shaped biomimetic design. The annular lifting platform (26) is movably inserted with a rotating shaft (27). A set of positioning hoops (28) is fixedly installed on the outer wall of the rotating shaft (27). A set of positioning hoops (28) is movably inserted with lifting rollers (29). A set of lifting rollers (29) is movably inserted with the inside of the turntable (24). A set of lifting rollers (29) is movably inserted with rotating rollers (212). A set of rollers (213) is fixedly sleeved on the surface of the rotating rollers (212). A compression spring (210) is fixedly installed at the bottom of each of the positioning hoops (28), and a positioning ring (211) is fixedly installed at the bottom of each of the compression springs (210). The positioning ring (211) is fixedly sleeved on the outer wall of the lifting roller (29). A drive shaft (214) is movably inserted inside the moving column (25). Two gears (215) and a longitudinal bevel tooth (216) are fixedly sleeved on the outer wall of the drive shaft (214). The positioning mechanism (1) is movably fitted with a clamping mechanism (3). The clamping mechanism (3) includes a housing (31). A resistance rod (14) and a drive shaft (214) are movably inserted inside the housing (31). Two clamping arms (32) are movably fitted on the outer wall of the resistance rod (14). A fixing rod (33) is fixedly installed on one side of the inner wall of the housing (31). The outer wall of the fixing rod (33) is movably inserted between the inner walls of the two clamping arms (32). A movable seat (34) is movably inserted inside the two clamping arms (32).

2. The gynecological vaginal examination drug delivery device according to claim 1, characterized in that: The outer wall of the longitudinal bevel tooth (216) is meshed with the transverse bevel tooth (217). The outer wall of the rotating shaft (27) is fixedly inserted into the transverse bevel tooth (217). A set of electric telescopic rods (218) is fixedly installed at the bottom of the inner wall of the rotating shaft (27). A lifting rod (219) is fixedly installed between the telescopic ends of the set of electric telescopic rods (218). Two sliders (220) are fixedly installed at the bottom of the moving column (25).

3. The gynecological vaginal examination drug delivery device according to claim 1, characterized in that: The outer wall of the swing mechanism (2) is fitted with a positioning mechanism (1). The positioning mechanism (1) includes an arc plate (11). An installation frame (12) is fixedly installed on the outer wall of the arc plate (11). Two through holes (13) are opened on the outer wall of the installation frame (12). A drive shaft (214) is movably inserted between the inner walls of the two through holes (13). A resistance rod (14) is fixedly installed on the outer wall of the installation frame (12).

4. A drug delivery device for gynecological vaginal examination according to claim 3, characterized in that: Two cylinders (15) are fixedly installed on the top of the mounting frame (12). Elastic plates (16) are fixedly installed on the bottom of the inner walls of the two cylinders (15). A circular frame (17) is fixedly installed between the tops of the two elastic plates (16). A syringe (21) is movably inserted into the inner surface of the circular frame (17). Two transverse grooves (18) are opened on the bottom of the inner wall of the mounting frame (12).

5. A drug delivery device for gynecological vaginal examination according to claim 4, characterized in that: The inner walls of the two transverse sliding grooves (18) are movably fitted with sliders (220), and the bottom of the inner wall of the mounting frame (12) is fixedly installed with two racks (19), and the outer walls of the two racks (19) are meshed with gears (215).

6. A drug delivery device for gynecological vaginal examination according to claim 5, characterized in that: Guide rods (35) are movably inserted inside the two movable seats (34). A return spring (36) is fixedly installed on one side of the outer wall of the two guide rods (35). Two rollers (37) are movably sleeved on the outer wall of the two guide rods (35). Two longitudinal grooves (38) are opened on the inner surface of the outer shell (31). Two rollers (37) are slidably embedded inside the two longitudinal grooves (38).

7. A drug delivery device for gynecological vaginal examination according to claim 6, characterized in that: The outer walls of the two guide rods (35) are movably fitted with driving arms (39), the bottom of the two driving arms (39) are fixedly connected to the top of the moving seat (34), the inner walls of the two driving arms (39) are movably inserted with rolling seats (310), the inner walls of the two driving arms (39) are movably inserted with rotating rods (311), and the interior of the outer shell (31) is movably inserted with push plates (312).

8. A drug delivery device for gynecological vaginal examination according to claim 7, characterized in that: Two sets of compression springs (313) are fixedly installed on one side of the outer wall of the push plate (312). A fixed crossbeam (314) is fixedly installed between the outer walls of the two sets of compression springs (313). The outer walls of the two fixed crossbeams (314) are fixedly connected to the inner wall of the outer shell (31).

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