Comfortable vaginal speculum for gynecological clinics

Abstract

The present invention discloses a comfortable vaginal dilator for gynecological outpatient clinic, which relates to the technical field of medical devices, including a fixed ring; an expansion mechanism, wherein the expansion mechanism includes a first rotating ring, the first rotating ring is concentrically arranged with the fixed ring, the first rotating ring is connected with a driving assembly, the output end of the driving assembly is connected with four threaded rods, the four threaded rods are all rotatably connected with the fixed ring at one end away from the driving assembly, the four threaded rods are all threadedly connected with a first fan blade, and the first rotating ring is coaxially rotatably connected with a second rotating ring. The present invention alternately supports the vaginal wall through the first fan blade and the second fan blade, and observes the inner wall of the vagina by rotating the fan blade, which is convenient for doctors to observe the inner wall of the vagina more comprehensively, and reduces the friction that may be generated by the traditional vaginal speculum during direct insertion and rotation, and does not directly rub the vaginal wall, thereby reducing the risk of damage to the vaginal wall.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a comfortable vaginal dilator for gynecological outpatient clinics. Background Art

[0002] In gynecological clinics, operations on some gynecological diseases such as the cervix, vaginal sidewalls and the inside of the uterus require dilation of the vagina using a dilator to ensure a clear surgical field of view, so that doctors can examine the condition of the patient's vaginal wall through the dilator. Traditional technology uses a hinged upper and lower duckbill dilator, which has a fixed structure and cannot provide comprehensive support for the vaginal wall, increasing the discomfort of the patient when the vaginal wall is dilated.

[0003] In the prior art, a cylindrical expansion net is used, and a cylindrical net-shaped support is formed for the vaginal wall by changing the diameter of the expansion net. In this way, the expansion net is easy to block the vaginal wall, which is not convenient for doctors to fully observe the patient's vagina; a movable support rod is used in combination with a fixed support rod, and the vagina is deeply inserted into the vagina in a folded state and then expanded. The pressure received by the vagina when it is expanded is concentrated, which increases the discomfort of the patient when the vagina is expanded. When the dilator needs to be rotated for a comprehensive examination of the vagina, it cannot be rotated directly. It needs to be rotated in the folded state before the vagina is expanded, which makes the patient need to endure the discomfort of secondary dilation. If the dilator is rotated directly, it will rub against the vagina, increasing the risk of damage to the vaginal wall; the support point of the expanded vagina is changed by alternating expansion components, which has a poor effect on the overall support of the vagina and increases the discomfort of the patient. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that when the vaginal dilator needs to be rotated for a comprehensive examination of the vagina, directly rotating the vaginal dilator will cause friction between the vagina and increase the risk of damage to the vaginal wall. A comfortable vaginal dilator for gynecological outpatient clinics is proposed to solve the problem that when the vaginal dilator needs to be rotated for a comprehensive examination of the vagina, the risk of damage to the vaginal wall will be increased if the vaginal dilator is directly rotated.

[0005] In order to achieve the above-mentioned object, the present invention adopts the following technical scheme: a comfortable vaginal dilator for gynecological outpatient clinics, comprising a fixing ring;

[0006] An expansion mechanism, wherein the expansion mechanism comprises a first rotating ring, the first rotating ring is arranged concentrically with a fixed ring, a driving assembly is connected to the first rotating ring, an output end of the driving assembly is connected to four threaded rods, one end of the four threaded rods away from the driving assembly is rotatably connected to the fixed ring, the four threaded rods are threadedly connected to first blades, the first rotating ring is coaxially rotatably connected to a second rotating ring, four first electric telescopic rods are mounted on the second rotating ring, the output end of the first electric telescopic rod is fixedly connected to a second blade, the four second blades slide against the inner sides of the four first blades in a one-to-one correspondence, and the first blade and the second blade are both arranged concentrically with the fixed ring;

[0007] An alternating movement mechanism comprises a third telescopic rod, wherein the third telescopic rod is mounted on the first fan blade, a sliding groove is provided on the outer side of one end of the first fan blade away from the first rotating ring, the output end of the third telescopic rod passes through the interior of the first fan blade and extends into the sliding groove, and is fixedly connected to the second electric telescopic rod, the output end of the second electric telescopic rod is fixedly connected to the support plate, and when the output end of the second electric telescopic rod is extended, the support plate is driven to extend out of the sliding groove.

[0008] In the above-mentioned comfortable vaginal dilator for gynecological outpatient clinics, the thickness of the support plate is smaller than the depth of the sliding groove.

[0009] In the above-mentioned comfortable vaginal dilator for gynecological outpatient clinics, the driving assembly includes a handle, the handle is coaxially fixedly connected to a first rotating rod, the first rotating ring is fixedly connected to a cross, the first rotating rod is rotatably connected to the cross, the first rotating rod is coaxially arranged with the first rotating ring, the first rotating rod extending into the first rotating ring One end is coaxially fixedly connected to a first bevel gear, the first bevel gear is meshed with four second bevel gears, the second bevel gear is coaxially fixedly connected to the second rotating rod, the four second rotating rods correspond one-to-one to the four threaded rods, the second rotating rod passes through the first rotating ring at one end away from the second bevel gear, and a fastener is installed between the threaded rod, four limit rods are fixedly connected between the first rotating ring and the fixed ring, the four limit rods correspond one-to-one to the four threaded rods, and the axial direction of the limit rod is parallel to the axial direction of the threaded rod, and the four first fan blades are slidably connected to the four limit rods in a one-to-one manner.

[0010] In the above-mentioned comfortable vaginal dilator for gynecological outpatient clinics, the fastener is used to control the linkage state of the second rotating rod and the threaded rod, and the threaded rod is fixedly connected with a knob at one end away from the second rotating rod.

[0011] In the above-mentioned comfortable vaginal dilator for gynecological outpatient clinics, the bottom of the first fan blade is coaxially fixedly connected to a slide rail, and the second fan blade is coaxially rotatably connected to the slide rail.

[0012] In the above-mentioned comfortable vaginal dilator for gynecological outpatient clinics, a curved rod is fixedly connected to the outer side of the second rotating ring.

[0013] In the above-mentioned comfortable vaginal dilator for gynecological outpatient clinics, an elastic band is fixedly connected between the first fan blade and the second fan blade.

[0014] In the above-mentioned comfortable vaginal dilator for gynecological outpatient clinics, a second telescopic rod is installed on the first fan blade, and a first telescopic rod is installed on the second fan blade. A sliding cavity is opened in the first fan blade and the second fan blade. The sliding cavity is open at one end away from the fixed ring. The open end of the sliding cavity is rotatably connected to a first rotating plate, and the first rotating plate is rotatably connected to one end away from the sliding cavity. The second rotating plate is chain-shaped, and the end away from the first rotating plate is slidably connected to the inner wall of the sliding groove, and the output ends of the second telescopic rod and the first telescopic rod abut against the connection between the first rotating plate and the second rotating plate in the corresponding sliding groove.

[0015] In the above-mentioned comfortable vaginal dilator for gynecological outpatient clinics, the first rotating plate and the second rotating plate are both made of medical rubber.

[0016] In the above-mentioned comfortable vaginal dilator for gynecological outpatient clinics, the second telescopic rod is rotationally coordinated with the first fan blade, the first telescopic rod is rotationally coordinated with the second fan blade, a plurality of cams are fixedly connected to the output ends of the first telescopic rod and the second telescopic rod, a plurality of lubrication bags are fixedly connected inside the first fan blade and the second fan blade, a plurality of the cams are pressed against the plurality of lubrication bags in a one-to-one correspondence, a liquid outlet is connected to the output end of the lubrication bag, the liquid outlet is opened on the first fan blade and the second fan blade, and is connected to the outside world at one end away from the lubrication bag.

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

[0018] 1. The present invention is provided with an expansion mechanism. When it is necessary to check the condition of the patient's vaginal wall, after the driving component drives the four first blades to expand outward to expand the vaginal wall, the output end of the first electric telescopic rod is controlled to extend, and the second blade is used as a support. The four first blades are then driven inward to fold by the driving component. At this time, the fixing ring is rotated to facilitate the rotation of the first blade to a suitable position, and the four first blades are then driven by the driving component to expand outward to prop up the vaginal wall. The vaginal wall is alternately supported by the first blade and the second blade, and the inner wall of the vagina is observed by rotating the blades, which is convenient for the doctor to observe the condition of the inner wall of the vagina more comprehensively, and reduces the friction that may be generated by the traditional speculum during direct insertion and rotation, and will not directly rub the vaginal wall, thereby reducing the risk of damage to the vaginal wall.

[0019] 2. The present invention sets an expansion mechanism. When the four first blades are driven to gradually expand outward by the driving assembly, the output end of the first electric telescopic rod is extended synchronously, so that the second blade maintains the contact effect with the first blade. After the first blade is unfolded, the second rotating ring is rotated. The second rotating ring drives the second blade to rotate out of the first blade through the first electric telescopic rod. With the cooperation of the elastic band between the two, the vaginal wall is avoided from being clamped. The purpose of propping up the entire vaginal wall is achieved by the first blade, the second blade and the elastic band. The inspection viewing angle will not be blocked due to the depression of the vaginal wall, thereby improving the inspection effect.

[0020] 3. The present invention sets an alternating moving mechanism, and the third telescopic rod and the second electric telescopic rod work alternately, so that the support plate and the first fan blade alternately support the vaginal wall, and when the first fan blade supports the vaginal wall, the support plate moves in the sliding groove, and when the support plate supports the vaginal wall, the first fan blade continues to penetrate into the vagina. Since the thickness of the support plate is less than the depth of the sliding groove, the friction of the support plate on the vaginal wall is reduced when the support plate moves. In this process, the support plate first opens a part of the vaginal wall and then pushes the vaginal dilator into it, effectively reducing the direct contact and friction between the vaginal dilator and the vaginal wall, thereby reducing the patient's discomfort. At the same time, when the patient's vaginal wall is damaged, the vaginal dilator can also be slightly moved outward, and then the support plate is raised and the vaginal dilator is pushed inward, thereby avoiding friction on the injured part and reducing damage to the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of a folded state of a comfortable vaginal dilator for gynecological clinics proposed by the present invention;

[0022] Figure 2 This is a schematic diagram of the unfolded state of a comfortable vaginal dilator for gynecological outpatient clinics proposed by the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the fixed ring portion of a comfortable vaginal dilator for gynecological outpatient clinics proposed by the present invention;

[0024] Figure 4 This is a schematic diagram of the second blade structure of a comfortable vaginal dilator for gynecological outpatient clinics proposed by the present invention;

[0025] Figure 5 This is a schematic diagram of the fan blade structure of a comfortable vaginal dilator for gynecological clinics proposed by the present invention;

[0026] Figure 6 A side view of the fan blade portion of a comfortable vaginal dilator for gynecological outpatient clinics proposed by the present invention;

[0027] Figure 7 A schematic diagram of the internal structure of the fan blades of a comfortable vaginal dilator for gynecological clinics proposed by the present invention;

[0028] Figure 8 This is a schematic diagram of the structure of the rotating plate portion of a comfortable vaginal dilator for gynecological clinics proposed by the present invention;

[0029] Fig. 9 A schematic diagram of an alternating movement mechanism of a comfortable vaginal dilator for gynecological clinics proposed by the present invention;

[0030] Fig.10 for Figure 3 A detailed enlarged picture of point A;

[0031] Fig.11 for Figure 3 A magnified view of the detail at B;

[0032] In the figure: 1 a fixing ring, 2 a knob, 3 a threaded rod, 4 a supporting plate, 5 a first fan blade, 6 a handle, 7 a first rotating ring, 8 a second rotating ring, 9 a first electric telescopic rod, 10 a second fan blade, 11 a bent rod, 12 a first telescopic rod, 13 a second telescopic rod, 14 a third telescopic rod, 15 an elastic band, 16 a first rotating plate, 17 a second electric telescopic rod, 18 a slide rail, 19 a second rotating plate, 20 a cam, 21 a first rotating rod, 22 a second rotating rod, 23 a first bevel gear, 24 a second bevel gear, 25 a fastener. DETAILED DESCRIPTION

[0033] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0034] Reference Figure 1 , a comfortable vaginal dilator for gynecological outpatient clinics, including a fixing ring 1.

[0035] Reference Figure 3 , Figure 4 , Fig.10 and Fig.11 , expansion mechanism, the expansion mechanism includes a first rotating ring 7, the first rotating ring 7 is concentrically arranged with the fixed ring 1, the first rotating ring 7 is connected with a driving assembly, the output end of the driving assembly is connected with four threaded rods 3, the four threaded rods 3 are rotatably connected to the fixed ring 1 at one end away from the driving assembly, the four threaded rods 3 are threadedly connected with first fan blades 5, the first rotating ring 7 is coaxially rotatably connected with a second rotating ring 8, four first electric telescopic rods 9 are installed on the second rotating ring 8, the output end of the first electric telescopic rod 9 is fixedly connected with a second fan blade 10, the four second fan blades 10 slide against the inner side of the four first fan blades 5 in a one-to-one correspondence, and the first fan blades 5 and the second fan blades 10 are both concentrically arranged with the fixed ring 1.

[0036] The driving assembly includes a handle 6, which is coaxially fixedly connected to a first rotating rod 21, and a cross is fixedly connected to the first rotating ring 7. The first rotating rod 21 is rotatably connected to the cross. The first rotating rod 21 is coaxially arranged with the first rotating ring 7, and one end of the first rotating rod 21 extending into the first rotating ring 7 is coaxially fixedly connected to a first bevel gear 23, the first bevel gear 23 is meshed with four second bevel gears 24, and the second bevel gear 24 is coaxially fixedly connected to a second rotating rod 22, the four second rotating rods 22 correspond one-to-one to the four threaded rods 3, the second rotating rod 22 passes through the first rotating ring 7 at one end away from the second bevel gear 24, and a fastener 25 is installed between the threaded rod 3, four limit rods are fixedly connected between the first rotating ring 7 and the fixed ring 1, the four limit rods correspond one-to-one to the four threaded rods 3, and the axial direction of the limit rod is parallel to the axial direction of the threaded rod 3, and the four first fan blades 5 are slidably connected to the four limit rods in a one-to-one manner.

[0037] The fastener 25 is used to control the linkage state between the second rotating rod 22 and the threaded rod 3 , and the end of the threaded rod 3 away from the second rotating rod 22 is fixedly connected with the knob 2 .

[0038] The fastener 25 adopts the existing technology, an annular cylinder, and a linkage block threadedly connected to the annular cylinder. When the linkage block is working, it synchronously clamps the second rotating rod 22 and the threaded rod 3 to form a linkage between the two. When not working, the two can freely maintain coaxial rotation cooperation with the annular cylinder.

[0039] Reference Figure 6 The bottom of the first fan blade 5 is coaxially fixedly connected with a slide rail 18, and the second fan blade 10 is coaxially rotatably connected to the slide rail 18.

[0040] Reference Figure 4 A bent rod 11 is fixedly connected to the outer side of the second rotating ring 8.

[0041] Reference Figure 6 An elastic band 15 is fixedly connected between the first fan blade 5 and the second fan blade 10.

[0042] Reference Figure 1 and Fig. 9 , an alternating moving mechanism, the alternating moving mechanism includes a third telescopic rod 14, the third telescopic rod 14 is installed on the first fan blade 5, and a sliding groove is opened on the outer side of the end of the first fan blade 5 away from the first rotating ring 7. The output end of the third telescopic rod 14 passes through the interior of the first fan blade 5 and extends into the sliding groove, and is fixedly connected to the second electric telescopic rod 17. The output end of the second electric telescopic rod 17 is fixedly connected to the support plate 4. When the output end of the second electric telescopic rod 17 is extended, the support plate 4 is driven to extend out of the sliding groove.

[0043] The thickness of the support plate 4 is smaller than the depth of the sliding groove.

[0044] Reference Figure 5-Figure 8A second telescopic rod 13 is installed on the first fan blade 5, and a first telescopic rod 12 is installed on the second fan blade 10. A sliding cavity is opened in the first fan blade 5 and the second fan blade 10. The sliding cavity is open at one end away from the fixing ring 1. The open end of the sliding cavity is rotatably connected with a first rotating plate 16. The first rotating plate 16 is rotatably connected with an end away from the sliding cavity. The second rotating plate 19 is chain-shaped, and the end away from the first rotating plate 16 is slidably connected to the inner wall of the sliding groove. The output ends of the second telescopic rod 13 and the first telescopic rod 12 abut against the connection between the first rotating plate 16 and the second rotating plate 19 in the corresponding sliding groove.

[0045] The first rotating plate 16 and the second rotating plate 19 are both made of medical rubber.

[0046] The second telescopic rod 13 is rotationally coordinated with the first fan blade 5, and the first telescopic rod 12 is rotationally coordinated with the second fan blade 10. A plurality of cams 20 are fixedly connected to the output ends of the first telescopic rod 12 and the second telescopic rod 13. A plurality of lubrication bags are fixedly connected inside the first fan blade 5 and the second fan blade 10. The plurality of cams 20 are pressed against the plurality of lubrication bags in a one-to-one correspondence. The output ends of the lubrication bags are connected with liquid outlets, which are arranged on the first fan blade 5 and the second fan blade 10, and are connected to the outside world at one end away from the lubrication bag.

[0047] Reference Figure 1 In the present invention, when in use, the user first gently separates the patient's labia with the thumb and index finger of one hand to expose the vaginal opening, and then holds the fixing ring 1 with the other hand to slowly insert the vaginal dilator, that is, the four first blades 5 and the second blades 10 in the folded state, into the vagina along the posterior wall of the vagina;

[0048] After the support plate 4 enters the patient's vagina, the second electric telescopic rod 17 is started, and the output end of the second electric telescopic rod 17 is extended, pushing the support plate 4 to move outward and protrude from the sliding groove, so as to stretch the vaginal wall. Then, the output end of the third telescopic rod 14 is controlled to contract, and at this time, the support plate 4 contacts the vaginal wall. Then, the fixed ring 1 is moved to slowly push a part of the four first fan blades 5 in the folded state into the vagina, and then the output end of the second electric telescopic rod 17 is controlled to contract, pulling the support plate 4 to move inward and retract to the other end in the sliding groove. At this time, the outer sides of the four first fan blades 5 in the folded state contact the vaginal wall, and then the output end of the third telescopic rod 14 is controlled to extend, pushing the support plate 4 back to its original position in the sliding groove;

[0049] Since the thickness of the support plate 4 is less than the depth of the sliding groove, when the output end of the third telescopic rod 14 extends to push the support plate 4 to reset, the friction caused by the support plate 4 on the vaginal wall is very small;

[0050] Repeat the above operation to gradually insert the four first blades 5 in the folded state into the patient's vagina. During this process, the lifting height of the support plate 4 can be gradually increased by controlling the extension degree of the output end of the second electric telescopic rod 17, so that the patient can first slightly adapt to the expansion of the vaginal dilator to avoid subsequent discomfort;

[0051] In this process, the support plate 4 first partially expands the vaginal wall and then pushes the speculum into the vagina, so as to create a more spacious and smooth passage before pushing the speculum into the vagina, which can reduce the direct contact and friction between the speculum and the vaginal wall, thereby reducing the patient's discomfort. At the same time, by gradually deepening and synchronously expanding the vagina, the vaginal wall can gradually adapt to the entry of the speculum, thereby reducing the pain and discomfort caused by sudden insertion or excessive expansion. This gradual approach helps patients relax their bodies better and reduce tension.

[0052] In addition, when encountering a damaged part of the patient's vaginal wall, the dilator can be slightly removed, and after raising the support plate 4, the dilator can be pushed inward to avoid friction on the injured part and reduce the damage to the patient;

[0053] Reference Figure 2 After the vaginal dilator reaches a suitable depth, slowly turn the handle 6 to rotate the first rotating rod 21. The rotation of the first rotating rod 21 drives the first bevel gear 23 to rotate. After the first bevel gear 23 rotates, it drives the four second bevel gears 24 to rotate synchronously, thereby driving the four threaded rods 3 to rotate synchronously through the four second rotating rods 22 and the fasteners 25. During the rotation of the threaded rod 3, the output end of the first electric telescopic rod 9 extends synchronously, so that the second fan blade 10 maintains the contact effect with the first fan blade 5. At the same time, the first fan blade 5 is limited by the limit rod. When the threaded rod 3 rotates, the first fan blade 5 will move axially along the threaded rod 3, so that the four first fan blades 5 in the folded state gradually expand outward to open the vaginal wall;

[0054] This gradual approach can reduce sudden impacts on the vaginal wall and help reduce patient discomfort. In addition, the four-blade design can provide a more uniform and smoother expansion of the vaginal wall, which means that during the examination, the pressure on the vaginal wall in all directions is more balanced, which helps reduce pain or discomfort caused by excessive local pressure.

[0055] After the vagina is expanded to a suitable position, the fastener 25 is unscrewed to release the linkage between the threaded rod 3 and the second rotating rod 22, and the threaded rod 3 is rotated by rotating the knob 2 to fine-tune the position of the first blade 5. This can further finely adjust the degree of vaginal expansion, allowing the doctor to more accurately expose the area to be examined and reduce the possibility of missed diagnosis or misdiagnosis.

[0056] When it is necessary to inspect the deep cervix, the second rotating ring 8 can be rotated by the bending rod 11, and the second rotating ring 8 rotates, and the second fan blade 10 is driven to rotate on the slide rail 18 by the first electric telescopic rod 9, so that the second fan blade 10 is turned to the side of the adjacent first fan blade 5, and then the output end of the first electric telescopic rod 9 is controlled to extend to expand the second fan blade 10 to the same height as the first fan blade 5. Since an elastic belt 15 is installed between the first fan blade 5 and the second fan blade 10, the first fan blade 5, the second fan blade 10 and the elastic belt 15 can support the entire vaginal wall, and the inspection angle will not be blocked due to the depression of the vaginal wall flesh, thereby affecting the inspection effect;

[0057] In addition, for patients with a deep cervix, the first telescopic rod 12 or the second telescopic rod 13 can be pushed to push the connection between the first rotating plate 16 and the second rotating plate 19, so that the second rotating plate 19 is extended from the sliding cavity through the first rotating plate 16, and the deep cervix is ​​expanded and supported under the support of the first telescopic rod 12 or the second telescopic rod 13;

[0058] Compared with directly extending the second rotating plate 19, rotating and extending the second rotating plate 19 can reduce the scratches and pressure on the vaginal wall, thereby reducing the risk of scratches. The first rotating plate 16 and the second rotating plate 19 are both made of medical rubber. The rubber material has good softness and elasticity, can better adapt to the physiological structure of the vagina, reduce the hard impact on the cervix, thereby reducing the risk of discomfort and injury. In addition, during the rotation process, the rubber plate can move smoothly, avoiding sudden pulling or scratching of sensitive tissues;

[0059] When it is necessary to check the condition of the patient's vaginal wall, after the first blade 5 is opened, the second blade 10 can be used to support the remaining part of the vaginal wall, so as to better observe the internal condition of the vaginal wall. When it is necessary to rotate the vaginal dilator for observation, the output end of the first electric telescopic rod 9 can be controlled to extend first, and the second blade 10 can be used as a support. Then the handle 6 can be rotated in the reverse direction to retract the first blade 5 to a certain length to avoid the first blade 5 from being squeezed and contacted with the vaginal wall. At this time, the fixed ring 1 is rotated again to make the first rotating ring 7 rotate relative to the second rotating ring 8, so as to rotate the first blade 5 to a suitable position. At this time, the handle 6 is rotated forward again to prop up the vaginal wall with the first blade 5.

[0060] In this way, by alternately supporting the first blade 5 and the second blade 10, the blades are rotated to observe the inner wall of the vagina, and the doctor can observe the inner wall of the vagina more comprehensively. This flexible field of view adjustment helps the doctor to find potential problems and make accurate diagnoses. In addition, this method also reduces the friction that may be generated by the traditional speculum during direct insertion and rotation, and will not directly rub the vaginal wall, thereby reducing the risk of damage to the vaginal wall.

[0061] Whether in the alternating support or expansion process, the first telescopic rod 12 or the second telescopic rod 13 can be rotated so that the cam 20 squeezes the lubrication bag, allowing the lubricating liquid to escape from the liquid outlet hole in the fan blade. Lubrication by the lubricating liquid helps to reduce the patient's discomfort with the dilator.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Comfortable vaginal dilator for gynecological clinics, characterized by: include: Fixing ring (1); An expansion mechanism, the expansion mechanism comprising a first rotating ring (7), the first rotating ring (7) being arranged concentrically with a fixed ring (1), the first rotating ring (7) being connected to a driving assembly, the output end of the driving assembly being connected to four threaded rods (3), the ends of the four threaded rods (3) being away from the driving assembly being rotatably connected to the fixed ring (1), the four threaded rods (3) being threadedly connected to first blades (5), the first rotating ring (7) being coaxially rotatably connected to a second rotating ring (8), the second rotating ring (8) being mounted with four first electric telescopic rods (9), the The output end of the first electric telescopic rod (9) is fixedly connected to a second fan blade (10), the four second fan blades (10) are slidably pressed against the inner sides of the four first fan blades (5) in a one-to-one correspondence, the first fan blade (5) and the second fan blade (10) are both arranged concentrically with the fixed ring (1), the bottom of the first fan blade (5) is coaxially fixedly connected to a slide rail (18), the second fan blade (10) and the slide rail (18) are coaxially rotatably matched, the outer side of the second rotating ring (8) is fixedly connected to a bent rod (11), and an elastic band (15) is fixedly connected between the first fan blade (5) and the second fan blade (10); An alternating movement mechanism, the alternating movement mechanism comprising a third telescopic rod (14), the third telescopic rod (14) being mounted on a first fan blade (5), a sliding groove being provided on the outer side of one end of the first fan blade (5) away from the first rotating ring (7), the output end of the third telescopic rod (14) passing through the interior of the first fan blade (5) and extending into the sliding groove, and being fixedly connected to a second electric telescopic rod (17), the output end of the second electric telescopic rod (17) being fixedly connected to a support plate (4), and when the output end of the second electric telescopic rod (17) is extended, the support plate (4) is driven to extend out of the sliding groove.

2. The comfortable vaginal dilator for gynecological outpatient clinic according to claim 1, characterized in that: The thickness of the support plate (4) is smaller than the depth of the sliding groove.

3. The comfortable vaginal dilator for gynecological outpatient clinic according to claim 1, characterized in that: The driving assembly comprises a handle (6), the handle (6) being coaxially fixedly connected to a first rotating rod (21), the first rotating ring (7) being fixedly connected to a cross, the first rotating rod (21) being rotatably connected to the cross, the first rotating rod (21) being coaxially arranged with the first rotating ring (7), one end of the first rotating rod (21) extending into the first rotating ring (7) being coaxially fixedly connected to a first bevel gear (23), the first bevel gear (23) being meshed with four second bevel gears (24), the second bevel gear (24) being coaxially fixedly connected to a first bevel gear (23), and the first bevel gear (23) being meshed with four second bevel gears (24). Two rotating rods (22), four of the second rotating rods (22) correspond one-to-one to the four threaded rods (3), one end of the second rotating rod (22) away from the second bevel gear (24) passes through the first rotating ring (7), and a fastener (25) is installed between the second rotating rod and the threaded rod (3), four limiting rods are fixedly connected between the first rotating ring (7) and the fixed ring (1), the four limiting rods correspond one-to-one to the four threaded rods (3), and the axial direction of the limiting rods is parallel to the axial direction of the threaded rod (3), and the four first fan blades (5) are slidably connected to the four limiting rods one-to-one.

4. The comfortable vaginal dilator for gynecological outpatient clinic according to claim 3, characterized in that: The fastener (25) is used to control the linkage state between the second rotating rod (22) and the threaded rod (3); one end of the threaded rod (3) away from the second rotating rod (22) is fixedly connected to a knob (2).

5. The comfortable vaginal dilator for gynecological outpatient clinic according to claim 1, characterized in that: A second telescopic rod (13) is mounted on the first fan blade (5), and a first telescopic rod (12) is mounted on the second fan blade (10). A sliding cavity is provided in both the first fan blade (5) and the second fan blade (10). The sliding cavity is open at one end away from the fixing ring (1). A first rotating plate (16) is rotatably connected to the open end of the sliding cavity. The first rotating plate (16) is rotatably connected to the second rotating plate (19) at one end away from the sliding cavity. The second rotating plate (19) is chain-shaped, and one end away from the first rotating plate (16) is slidably connected to the inner wall of the sliding groove. The output ends of the second telescopic rod (13) and the first telescopic rod (12) abut against the connection between the first rotating plate (16) and the second rotating plate (19) in the corresponding sliding groove.

6. The comfortable vaginal dilator for gynecological outpatient clinic according to claim 5, characterized in that: The first rotating plate (16) and the second rotating plate (19) are both made of medical rubber.

7. The comfortable vaginal dilator for gynecological outpatient clinic according to claim 5, characterized in that: The second telescopic rod (13) is rotationally matched with the first fan blade (5), and the first telescopic rod (12) is rotationally matched with the second fan blade (10). A plurality of cams (20) are fixedly connected to the output ends of the first telescopic rod (12) and the second telescopic rod (13). A plurality of lubrication bags are fixedly connected inside the first fan blade (5) and the second fan blade (10). The plurality of cams (20) are pressed against the plurality of lubrication bags in a one-to-one correspondence. The output ends of the lubrication bags are connected to liquid outlets. The liquid outlets are arranged on the first fan blade (5) and the second fan blade (10), and are connected to the outside at an end away from the lubrication bags.

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