Adjustable soft cervical dilation device

Abstract

The invention discloses an adjustable soft cervical dilation device, relates to the field of medical devices, and provides the adjustable soft cervical dilation device which comprises a handheld part and a distraction part connected with the handheld part, and is characterized in that the handheld part is a double-layer handheld plate, a pushing structure for distraction of the distraction part is arranged on the double-layer handheld plate, and the double-layer handheld plate is connected with the distraction part. The limiting structures are symmetrically arranged on the two sides of the pushing structure, and the pushing structure is connected with the limiting structures; and the double-layer handheld plate comprises an upper-layer handheld plate and a lower-layer handheld plate. Linkage of the limiting structure and the pushing structure is achieved by arranging the pressing button, so that rapid opening and fixing of the upper nozzle plate and the lower nozzle plate are achieved, and use is convenient.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to an adjustable soft cervical dilation device. Background Art

[0002] At present, vaginal speculum is often used for gynecological examination in clinic. The vaginal speculum includes two duckbill-shaped upper and lower leaves. However, when examining patients, the upper and lower leaves expand to different sizes, and medical staff need to keep their hands still to fix the device at a suitable angle, which is not only not conducive to medical staff's observation, but also brings certain pain to patients during the expansion process. In addition, the size of the observation port cannot be changed, which affects the observation field of view.

[0003] A cervical dilation device with a publication (announcement) number of (CN 221450589 U) comprises a handle, an observation slot is provided at the top of the handle, a fixed vaginal dilation plate is provided on the top wall of the observation slot, sliding slots are provided on the inner walls on both sides of the observation slot, a movable vaginal dilation plate is provided at the bottom end of the observation slot, sliders are fixedly provided on both sides of one end of the movable vaginal dilation plate, a sawtooth bar is fixedly provided at the bottom of the slider, a toggle wheel is provided on one side of the bottom end of the handle, driving gears are sleeved on the outer ends of the connecting shafts at both ends of the toggle wheel, and a driven gear is provided obliquely above the driving gear. By utilizing the sawtooth bar, the driven gear, the driving gear and the toggle wheel, the expansion spacing between the movable vaginal dilation plate and the fixed vaginal dilation plate can be adjusted according to demand, and in conjunction with the telescopic rod, the sliding sleeve, the reset spring and the toggle plate, the device can remain stable after adjustment to avoid the situation where the movable vaginal dilation plate is reset under the action of resistance, so that wireless medical personnel can hold the handle for easy operation by both hands.

[0004] However, the application uses a toggle wheel to adjust the vaginal dilator plates, which is rather laborious to use; the stability of the toggle plates is ensured by the mutual adsorption of the metal plate and the magnetic plate, resulting in poor stability of the adjusted vaginal dilator plates. Summary of the invention

[0005] In view of the above-mentioned problems, the present invention aims to provide an adjustable soft cervical dilation device, which realizes the linkage between the limiting structure and the pushing structure by setting a press button, thereby realizing the rapid opening and fixing of the upper mouth plate and the lower mouth plate, and the position of the upper mouth plate and the lower mouth plate after opening is more stable, which is convenient for use.

[0006] The main idea of ​​the technical solution adopted by the present invention is: the upper hand-held plate is connected to the upper mouth plate at 90 degrees, and the lower hand-held plate is connected to the lower mouth plate at 90 degrees. Unlike the existing duckbill pliers with upper and lower mouth plates in an outward-opening figure-eight shape, the present application arranges the upper mouth plate and the lower mouth plate into a parallel opening structure, so that the vagina can be opened more completely, and the cervical canal can be better exposed to facilitate observation by medical staff. In the process of opening the vagina, only the smooth curved surfaces of the upper mouth plate and the lower mouth plate are in contact with the inner wall of the cervix, which greatly reduces the pain and discomfort caused to the patient.

[0007] The linkage between the limit structure and the push structure is realized by pressing the button. When the button is pressed, the driven gear will also move downward, and then the driven gear will mesh with the gear belt. Since the driving motor drives the No. 1 driving gear to rotate, and the No. 1 driving gear is connected to the No. 2 driving gear through the gear belt, the gear belt will rotate accordingly due to the linkage effect. When the gear belt moves, it will drive the driven gear meshed with it to move, and then drive the button to slide in the slide. When the button slides in the slide, it will drive the limit structure to move, thereby realizing the rapid expansion and fixation of the upper and lower nozzle plates, which is convenient for use.

[0008] In order to achieve the above object, the technical solution adopted by the present invention is as follows: An adjustable soft cervical dilatation device comprises a handheld portion and an opening portion connected to the handheld portion, characterized in that: the handheld portion is a double-layer handheld plate, the double-layer handheld plate is provided with a pushing structure for opening the opening portion, and a limiting structure symmetrically arranged on both sides of the pushing structure, and the pushing structure is connected to the limiting structure; The double-layer handheld board comprises an upper handheld board and a lower handheld board.

[0009] Furthermore, the pushing structure includes a slot opened in the middle of the upper hand-held plate, a pressing and pushing component is sleeved in the slot, a driving component is provided below the pressing and pushing component, and the driving component is located on the lower hand-held plate.

[0010] Furthermore, the pressing and pushing component includes a button sleeved in the slot, and a driven gear located below the button and connected to the button, and a driving component is provided below the driven gear.

[0011] Furthermore, the driving component includes a fixing groove located on the lower hand-held plate, and a driving gear assembly sleeved in the fixing groove.

[0012] Furthermore, the driving gear assembly includes a No. 1 driving gear located at one end of the slot, a No. 2 driving gear located at the other end of the slot, and a gear belt sleeved between the No. 1 driving gear and the No. 2 driving gear, and the No. 1 driving gear is connected to the drive motor.

[0013] Furthermore, the limiting structure includes limiting components symmetrically arranged on both sides of the lower hand-held board, and an arc-shaped connecting piece is provided between each limiting component and the button.

[0014] Furthermore, each of the limiting components includes a limiting track laid on the lower handheld board, a sliding component sleeved in the limiting track, and an arc-shaped connecting piece is provided between the sliding component and the button.

[0015] Furthermore, a plurality of limiting blocks are evenly arranged on the limiting track, and a limiting groove is formed between every two limiting blocks.

[0016] Furthermore, the sliding assembly includes a sliding block sleeved in the track, and an elastic moving part located inside the sliding block.

[0017] Furthermore, the elastic moving member includes a movable block positioned in the limiting groove, an elastic block located above the movable block, and a push rod inserted in the elastic block, wherein the push rod is connected to the arc-shaped connecting piece.

[0018] The beneficial effects of the present invention are as follows: compared with the prior art, the present invention has the following improvements: By setting the upper mouth plate and the lower mouth plate in a parallel opening structure, the vagina can be opened more completely, the cervical opening can be fully exposed, the field of vision can be clearer, and it is convenient for medical staff to observe. In addition, during the process of opening the vagina, only the smooth curved surfaces of the upper mouth plate and the lower mouth plate are in contact with the inner wall of the vagina, which causes less pain to the patient. Through the cooperation of the limiting rail, the fixing groove, the pressure plate, the arc-shaped sheet, the button, the push rod, the slider, the slide groove, the No. 1 spring, the movable block, the limiting card block, the limiting groove, the No. 2 spring, the driven gear, the No. 1 driving gear, the No. 2 driving gear and the gear belt, the limiting structure and the pushing structure can be linked by pressing the button, thereby realizing the rapid expansion and fixation of the upper and lower nozzle plates, and the expanded upper and lower nozzle plates are fixed by the limiting groove and the limiting card block, so that the positions of the upper and lower nozzle plates are more stable and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a side view of the adjustable soft cervical dilation device of the present invention.

[0020] Figure 2 It is a front view of the adjustable soft cervical dilation device of the present invention.

[0021] Figure 3 It is a rear view of the adjustable soft cervical dilation device of the present invention.

[0022] Figure 4It is a schematic diagram of the three-dimensional structure of the adjustable soft cervical dilation device of the present invention.

[0023] Figure 5 It is a bottom view of the adjustable soft cervical dilation device of the present invention.

[0024] Figure 6 It is an enlarged schematic diagram of part A of the adjustable soft cervical dilation device of the present invention.

[0025] Figure 7 It is a schematic diagram of the limit track structure of the adjustable soft cervical dilation device of the present invention.

[0026] Figure 8 It is a top view of the slider of the adjustable soft cervical dilation device of the present invention.

[0027] Fig. 9 It is a three-dimensional schematic diagram of a slider of the adjustable soft cervical dilation device of the present invention.

[0028] Fig.10 It is a side view of the slider of the adjustable soft cervical dilation device of the present invention.

[0029] Fig.11 It is a schematic diagram of the structure of the driving gear assembly of the adjustable soft cervical dilation device of the present invention.

[0030] Fig.12 It is a vertical cross-sectional view of the sliding assembly of the adjustable soft cervical dilation device of the present invention.

[0031] Among them: 1. upper mouth plate, 2. lower mouth plate, 3. upper hand-held plate, 4. lower hand-held plate, 5. upper semicircular ring, 6. lower semicircular ring, 7. slot, 8. limit track, 9. fixed slot, 10. pressure plate, 11. arc-shaped connecting piece, 12. button, 13. sleeve, 14. push rod, 15. slider, 16. slide groove, 17. No. 1 spring, 18. movable block, 19. limit card block, 20. limit groove, 21. No. 2 spring, 22. driven gear, 23. No. 1 driving gear, 24. No. 2 driving gear, 25. gear belt, 26. No. 1 pleated silicone sheet, 27. No. 2 pleated silicone sheet. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0036] In the description of this application, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0037] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0038] In the description of the present application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two elements.

[0039] For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] Because the vagina is relatively deep and the labia majora and minora are closed, the vagina and cervix cannot be exposed, and lesions of the vagina and cervix cannot be identified. Therefore, a vaginal speculum is used during routine gynecological examinations. It is slowly inserted into the vagina along the posterior wall of the vagina and then pushed upward and backward. At the same time, the vaginal speculum is turned flat and the two leaves are opened. This can fully expose the cervix and vaginal wall, which can help the doctor diagnose the disease.

[0041] At present, vaginal speculum is often used for gynecological examination in clinic. The vaginal speculum includes two duckbill-shaped upper and lower leaves. However, when examining patients, the upper and lower leaves expand to different sizes, and medical staff need to keep their hands still to fix the device at a suitable angle, which is not only not conducive to medical staff's observation, but also brings certain pain to patients during the expansion process. In addition, the size of the observation port cannot be changed, which affects the observation field of view.

[0042] In order to solve the above problems, the present application discloses an adjustable soft cervical dilation device, see Figure 1-Figure 12 The adjustable soft cervical dilation device comprises a hand-held part and an opening part connected to the hand-held part, wherein the hand-held part is a double-layer hand-held plate, and the double-layer hand-held plate is provided with a pushing structure for opening the opening part, and a limiting structure symmetrically arranged on both sides of the pushing structure, and the pushing structure is connected to the limiting structure; Among them, the double-layer hand-held plate includes an upper hand-held plate 3 and a lower hand-held plate 4, and the opening part includes an upper mouth plate 1 and a lower mouth plate 2. The two sides of the upper mouth plate 1 and the lower mouth plate 2 are connected by a No. 1 pleated silicone sheet 26. The No. 1 pleated silicone 26 film serves as an elastic connecting piece and can connect the upper mouth plate 1 and the lower mouth plate 2. It should be noted that the upper hand-held plate 3 is connected to the upper mouth plate 1 at 90°, and the lower hand-held plate 4 is connected to the lower mouth plate 2 at 90°. Unlike the existing duckbill pliers with an outward-opening upper mouth plate 1 and a lower mouth plate 2 in an eight-shaped shape, the present application can make the vagina more completely opened and the cervical canal better exposed by arranging the upper mouth plate 1 and the lower mouth plate 2 into a parallel opening structure, which is convenient for medical staff to observe. It can also make it possible for only the smooth curved surfaces of the upper mouth plate 1 and the lower mouth plate 2 to contact the inner wall of the vagina during the process of the vagina being opened, which greatly reduces the pain and discomfort caused to the patient by the upper mouth plate 1 and the lower mouth plate 2.

[0043] It should be noted that an observation port is also connected to one end of the upper mouth plate 1 and the lower mouth plate 2 near the handheld portion. The observation port is a circular ring composed of two semicircular rings, wherein the upper semicircular ring 5 is fixedly connected to the upper mouth plate 1, and the lower semicircular ring 6 is fixedly connected to the lower mouth plate 2. The upper and lower semicircular rings 5 ​​and 6 are connected on both sides by a No. 2 pleated silicone sheet 27, so that the upper and lower semicircular rings 5 ​​and 6 can be opened and closed synchronously with the upper and lower mouth plates 1 and 2 at the corresponding positions, so that the observation port can be enlarged as the upper and lower mouth plates 1 and 2 are stretched, so that medical staff can observe the cervical morphology through the observation port. In addition, the adjustable soft cervical dilation device of the present application can also be set in different sizes to facilitate the use of patients with different needs. Here, an adjustable soft cervical dilation device of normal size (the same size as the duckbill pliers used in the general market) is used as an example for explanation.

[0044] Specifically, the lower nozzle plate 2 is connected to the lower semicircular ring 6 through a pressure plate 10, that is, a pressure plate 10 extends from the end of the lower nozzle plate 2, and the lower outer wall of the pressure plate 10 contacts the inner wall of the lower semicircular ring 6. When the upper nozzle plate 1 and the lower nozzle plate 2 are stretched open, the upper semicircular ring 5 moves with the upper nozzle plate 1, and the lower semicircular ring 6 is pressed by the pressure plate 10 and moves with the lower nozzle plate 2, so that the upper semicircular ring 5 and the lower semicircular ring 6 are opened and closed synchronously with the upper nozzle plate 1 and the lower nozzle plate 2 at the corresponding positions.

[0045] The double-layer hand-held plate is provided with a pushing structure for opening the opening part, and the pushing structure includes a slot 7 opened in the middle of the upper hand-held plate 3, a pressing and pushing component is sleeved in the slot 7, and a driving component is provided below the pressing and pushing component, and the driving component is located on the lower hand-held plate 4.

[0046] The push-pushing component includes a button 12 sleeved in the slot 7 , and a driven gear 22 located below the button 12 and connected to the button 12 , and a driving component is provided below the driven gear 22 .

[0047] More specifically, the outer movable sleeve of the button 12 is provided with a shell, and the two sides of the shell are fixedly clamped in the slot 7. When the button 12 is pressed, the shell remains stationary, and the button 12 slides inside the shell, thereby compressing the No. 2 spring 21 and squeezing the sleeve 13 to move downward, so that the driven gear 22 also moves downward.

[0048] A sleeve 13 is provided below the button 12, and the sleeve 13 is sleeved on the lower part of the button 12. The driven gear 22 is fixedly connected to the bottom of the sleeve 13, and a No. 2 spring 21 is provided inside the button 12. One end of the No. 2 spring 21 contacts the inner bottom of the sleeve 13. When the button 12 is pressed, the No. 2 spring 21 is compressed, and the sleeve 13 is squeezed to move downward, so that the driven gear 22 also moves downward, and then let go, and the driven gear 22 is fixed in this position. The specific structure and use method of the button 12 refer to the pressing pen. Press it once to make the driven gear 22 located below and connected to the button 12 move downward. Press it again to make the driven gear 22 move upward, so as to control whether the driven gear 22 is in contact with the driving component. Since the internal structure and use method of the pressing pen are prior art, they will not be elaborated here.

[0049] The driving component includes a fixed groove 9 located on the lower handheld plate 4, and a driving gear assembly sleeved in the fixed groove 9. The driving gear assembly includes a No. 1 driving gear 23 located at one end of the fixed groove 9, a No. 2 driving gear 24 located at the other end of the fixed groove 9, and a gear belt 25 sleeved between the No. 1 driving gear 23 and the No. 2 driving gear 24. The No. 1 driving gear 23 is connected to a driving motor (not shown), and the switch of the driving motor is located on the back of the lower handheld plate 4, which is convenient for medical staff to operate. It should be noted that when it is necessary to drive the driven gear 22 to move, the driving motor must be turned on first, so that the driving motor drives the No. 1 driving gear 23 to rotate, and then drives the gear belt 25 meshing with the No. 1 driving gear 23 to rotate, and then the gear belt 25 drives the No. 2 driving gear 24 to rotate. After the gear belt 25 rotates, press the button again, and the driven gear 22 can be driven to rotate through the gear belt 25.

[0050] When the button 12 is pressed, the driven gear 22 will also move downward, and then the driven gear 22 will mesh with the gear belt 25. Since the driving motor drives the No. 1 driving gear 23 to rotate, and since the No. 1 driving gear 23 is connected to the No. 2 driving gear 24 through the gear belt 25, due to the linkage effect, the gear belt 25 will rotate accordingly. When the gear belt 25 moves, it will drive the driven gear 22 meshing therewith to move, thereby driving the button 12 to move. Since the button 12 is slidably connected to the shell, and the shell is fixedly connected to the slide groove 16, therefore, when the button 12 moves, it drives the shell and the slide groove 16 to move, and then driven by the shell, the upper hand-held plate 3 moves upward. Since the upper hand-held plate 3 is fixedly connected to the upper mouth plate 1, the upper mouth plate 1 will also move upward. Therefore, when the button 12 is pressed, the upper mouth plate 1 and the lower mouth plate 2 will separate, thereby achieving the purpose of adjusting the size of the cervix.

[0051] Specifically, the limiting structure includes limiting components symmetrically arranged on both sides of the lower hand-held board 4 , and each limiting component is connected to the button 12 via an arc-shaped connecting piece 11 .

[0052] Each limiting component includes a limiting track 8 laid on the lower hand-held board 4 , a sliding component sleeved in the limiting track 8 , and an arc-shaped connecting piece 11 is provided between the sliding component and the button 12 .

[0053] A plurality of limiting blocks 19 are evenly arranged on the limiting track 8 , and a limiting groove 20 is formed between every two limiting blocks 19 .

[0054] The sliding assembly includes a slider 15 sleeved in the limiting track 8, and an elastic moving member located inside the slider 15. The slider 15 can slide on the limiting track 8. The elastic moving member includes a movable block 18 positioned in the limiting groove 20, an elastic block located above the movable block 18, and a push rod 15 inserted in the elastic block, and the push rod 15 is fixedly connected to the arc-shaped connecting piece 11.

[0055] The arc-shaped connecting piece 11 is an arc-shaped elastic spring piece. When the button 12 is pressed, the button 12 moves downward, thereby driving the arc-shaped connecting pieces 11 symmetrically connected to the two sides of the button 12 and one end connected to the button 12 to move downward. Since the arc-shaped connecting piece 11 is elastic, the push rod 14 connected to the other end of the arc-shaped connecting piece 11 will be pushed outward by the arc-shaped connecting piece 11, thereby causing the elastic block connected to the push rod 14 to move outward. Since the push rod 14 is inserted into the elastic block, Fig.12 As shown, a spring No. 17 is provided between the push rod 14 located inside the elastic block and the inner wall of the elastic block, so that when the push rod 14 pushes the elastic block to move outward, the spring No. 17 will be compressed. In order to reset, the spring No. 17 will also drive the elastic block to move outward, and the elastic block is fixedly connected to the movable block 18. Therefore, under the action of the arc-shaped connecting piece 11 and the push rod 14, the movable block 18 will be pushed out of the limiting groove 20, so that the limiting groove 20 loses its limiting effect on the movable block 18.

[0056] When the movable block 18 is pushed out of the limiting groove 20, the button 12 will drive the limiting structure to move when it slides in the slide groove 16. When the movement needs to be stopped, the button 12 can be pressed again to make the driven gear 22 move upward, and the button 12 also moves upward. Then the driven gear 22 will separate from the gear belt 25, thereby driving the button 12 to stop sliding in the slide groove 16. And the arc-shaped connecting piece 11 symmetrically connected to the two sides of the button 12 moves upward at one end connected to the button 12. Since the arc-shaped connecting piece 11 is elastic, the push rod 14 connected to the other end of the arc-shaped connecting piece 11 will be pulled inward by the arc-shaped connecting piece 11, thereby causing the elastic block connected to the push rod 14 to move inward. Since the push rod 14 is inserted into the interior of the elastic block, a No. 1 spring 17 is provided between the push rod 14 located inside the elastic block and the inner wall of the elastic block, so that when the push rod 14 pushes the elastic block to move inward, the No. 1 spring 17 will be stretched. In order to reset, the No. 1 spring 17 will also drive the elastic block to move inward, and the elastic block is fixedly connected to the movable block 18. Therefore, under the action of the arc-shaped connecting piece 11 and the push rod 14, the movable block 18 will be pulled into the limiting groove 20, so that the limiting groove 20 will limit the movable block 18 again, and the upper mouth plate 1 and the lower mouth plate 2 that have been stretched to the required position will be fixed, which is convenient for medical staff to operate. Example

[0057] Since the expansion of traditional duckbill forceps may cause physical discomfort or psychological fear in patients, the device should have the function of gently adjusting the size of the expanded vagina, and the material of the main plate and the reasonable layout of the adjustment components. The second is the size of the observation port: in order to clearly observe the patient's condition, the size of the device's observation port should change with the expansion of the main plate. There is also fixation: after the device is adjusted to the appropriate position, it should be able to stably limit the adjusted expansion degree to ensure comfort and safety during the observation and treatment process.

[0058] Therefore, the use of the adjustable soft cervical dilation device of the present application can effectively avoid this problem. When using it, the patient should take off the lower body clothing under the guidance of medical staff and lie on the examination bed so that medical staff can conveniently perform examination operations.

[0059] Medical staff should wear gloves or ensure that their hands are disinfected to maintain aseptic operation and reduce the risk of infection. Then choose an adjustable soft cervical dilator of appropriate size according to the patient's condition to ensure the comfort and safety of the examination. The adjustable soft cervical dilator needs to be disinfected before use.

[0060] The following is the operation process of the adjustable soft cervical dilation device of this application: The medical staff will gently insert the upper mouth plate 1 and the lower mouth plate 2 of the adjustable soft cervical dilation device in a closed state into the patient's vagina, and then gently rotate them until they are fully inserted.

[0061] Next, the medical staff presses the button 12 to move the button 12 downward, which in turn drives the arc-shaped connecting piece 11 symmetrically connected to the two sides of the button 12 and one end connected to the button 12 to move downward. Since the arc-shaped connecting piece 11 is elastic, the push rod 14 connected to the other end of the arc-shaped connecting piece 11 will be pushed outward by the arc-shaped connecting piece 11, thereby causing the elastic block connected to the push rod 14 to move outward. Since the push rod 14 is inserted into the interior of the elastic block, a No. 1 spring 17 is provided between the push rod 14 located inside the elastic block and the inner wall of the elastic block, so that when the push rod 14 pushes the elastic block to move outward, the No. 1 spring 17 will compress the No. 1 spring 17. In order to reset, the No. 1 spring 17 will also drive the elastic block to move outward, and the elastic block is fixedly connected to the movable block 18. Therefore, under the action of the arc-shaped connecting piece 11 and the push rod 14, the movable block 18 will be pushed out of the limiting groove 20, so that the limiting groove 20 loses its limiting effect on the movable block 18.

[0062] When the movable block 18 is pushed out of the limiting groove 20, the button 12 will slide in the slide groove 16, which will drive the limiting structure to move to the required position. When the movement needs to be stopped, the button 12 can be pressed again to make the driven gear 22 move upward, and the button 12 also moves upward. Then the driven gear 22 will separate from the gear belt 25, and then drive the button 12 to stop sliding in the slide groove 16. And the arc-shaped connecting piece 11 symmetrically connected to both sides of the button 12 moves upward at one end connected to the button 12. Since the arc-shaped connecting piece 11 is elastic, the push rod 14 connected to the other end of the arc-shaped connecting piece 11 will be pulled inward by the arc-shaped connecting piece 11, so that the elastic block connected to the push rod 14 will move inward. Since the push rod 14 is inserted into the inside of the elastic block, a No. 1 spring 17 is provided between the push rod 14 and the inner wall of the elastic block, so that the push rod 14 pushes the elastic block inward. When moving, spring No. 17 will be stretched. In order to reset, spring No. 17 will also drive the elastic block to move inward, and the elastic block is fixedly connected to the movable block 18. Therefore, under the action of the arc-shaped connecting piece 11 and the push rod 14, the movable block 18 will be pulled into the limiting groove 20, so that the limiting groove 20 will limit the movable block 18 again, and the upper mouth plate 1 and the lower mouth plate 2 that have been stretched to the required position will be fixed. Then the medical staff can perform specialized observation or treatment on the fully exposed cervical canal through the observation port.

[0063] During the entire examination process, medical staff should ask the patient about his or her comfort level so as to adjust the positions of the upper mouth plate 1 and the lower mouth plate 2 in a timely manner to reduce the patient's discomfort.

[0064] After the examination is completed, the medical staff should slowly retract the adjustable soft cervical dilator, and the patient should remain relaxed to reduce discomfort.

[0065] Through the above-mentioned preparation and operation process, the safety of using the adjustable soft cervical dilation device in gynecological examination and the comfort of the patient can be ensured, and unnecessary pain and fear can be reduced.

[0066] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An adjustable soft cervical dilation device, comprising a hand-held portion and a dilating portion connected to the hand-held portion, characterized in that: The hand-held part is a double-layer hand-held board, and the double-layer hand-held board is provided with a pushing structure for opening the opening part, and a limiting structure symmetrically arranged on both sides of the pushing structure, and the pushing structure is connected to the limiting structure; The double-layer handheld board comprises an upper handheld board (3) and a lower handheld board (4).

2. The adjustable soft cervical dilation device according to claim 1, characterized in that: The pushing structure comprises a slot (7) formed in the middle of the upper hand-held plate (3), a pressing and pushing component is sleeved in the slot (7), a driving component is provided below the pressing and pushing component, and the driving component is located on the lower hand-held plate (4).

3. The adjustable soft cervical dilation device according to claim 2, characterized in that: The pressing and pushing component comprises a button (12) sleeved in the slot (7), and a driven gear (22) located below the button (12) and connected to the button (12), and a driving component is provided below the driven gear (22).

4. The adjustable soft cervical dilation device according to claim 3, characterized in that: The driving component comprises a fixing groove (9) located on the lower handheld plate (4), and a driving gear assembly sleeved in the fixing groove (9).

5. The adjustable soft cervical dilation device according to claim 4, characterized in that: The driving gear assembly comprises a first driving gear (23) located at one end of the slot (7), a second driving gear (24) located at the other end of the slot (7), and a gear belt (25) sleeved between the first driving gear (23) and the second driving gear (24); the first driving gear (23) is connected to a driving motor.

6. The adjustable soft cervical dilation device according to claim 5, characterized in that: The limiting structure comprises limiting components symmetrically arranged on both sides of the lower handheld plate (4), and an arc-shaped connecting piece (11) is arranged between each limiting component and the button (12).

7. The adjustable soft cervical dilation device according to claim 6, characterized in that: Each of the limiting components comprises a limiting track (8) laid on the lower handheld board (4), a sliding component sleeved in the limiting track (8), and an arc-shaped connecting piece (11) is provided between the sliding component and the button (12).

8. The adjustable soft cervical dilation device according to claim 7, characterized in that: A plurality of limit clamping blocks (19) are evenly arranged on the limit track (8), and a limit groove (20) is formed between every two limit clamping blocks (19).

9. The adjustable soft cervical dilation device according to claim 8, characterized in that: The sliding assembly comprises a sliding block (15) sleeved in a limiting track (8), and an elastic moving part located inside the sliding block (15).

10. The adjustable soft cervical dilation device according to claim 9, characterized in that: The elastic movable member comprises a movable block (18) positioned in a limiting groove (20), an elastic block located above the movable block (18), and a push rod (14) inserted into the elastic block, wherein the push rod (14) is connected to the arc-shaped connecting piece (11).

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