Vaginal speculum convenient to operate
By introducing multiple support components and side wing panels into the vaginal speculum, combined with the cooperation of telescopic columns and positioning sleeves, the problem of insufficient vaginal exposure in obese patients is solved, achieving all-round vaginal expansion and stable support, and improving the ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FIRST AFFILIATED HOSPITAL OF CHONGQING MEDICAL UNIVERSITY
- Filing Date
- 2025-01-09
- Publication Date
- 2026-04-14
AI Technical Summary
When existing vaginal speculum is used on obese patients, the degree of vaginal exposure is insufficient, making it difficult for doctors to examine the cervix and perform surgical procedures.
Design a vaginal speculum that includes a support mechanism and an expansion mechanism. Multiple support members are evenly distributed on the mounting ring. The vagina is expanded in all directions through the cooperation of threaded rods and movable parts. Side wing plates are set on the support members to increase the contact area. Telescopic columns and positioning sleeves are used to provide positioning effect.
It enables full dilation of the vagina in obese patients, enhances the convenience of examination and surgical procedures, and avoids operational obstacles caused by vaginal wall accumulation.
Smart Images

Figure CN224112642U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of vaginal speculum technology, specifically relating to a vaginal speculum that is easy to operate. Background Technology
[0002] A vaginal speculum, also known as a vaginal dilator, consists of two blades and a handle. It is mainly used for routine gynecological examinations and surgical procedures. When used, it can dilate the patient's affected area to facilitate examination and treatment by the doctor.
[0003] A vaginal dilator, as disclosed in utility model patent CN 116763374, includes two relatively displaceable outer expansion plates and an outer frame. Each outer expansion plate has an installation end and an arc-shaped end. The installation end is fixedly connected to two sliding strips. The inner wall of the outer frame is fixedly connected to two symmetrically distributed guide rods. The sliding strips are slidably sleeved on the guide rods. Two symmetrically distributed base strips are also movably sleeved on the two guide rods. An elastic element is provided between the base strips and the sliding strips. In this invention, the expansion degree is adjusted by translation of the two outer expansion plates. The front and rear movement of the outer expansion plates is consistent, which ensures that the expansion force on both sides is consistent. On the one hand, the buffer expansion method of the first spring can avoid damage caused by excessive force on the vagina. On the other hand, there is no hinge between the two outer expansion plates, which provides observation and operation space and facilitates the doctor's operation. However, the device only has two blades, upper and lower. When applied to obese patients, since the structure can only expand in two directions, and the vaginal wall of obese patients is more severely congested, the degree of vaginal exposure is insufficient, which makes it difficult for the doctor to perform treatment on the cervix smoothly.
[0004] To address these issues, those skilled in the art have proposed an easy-to-use vaginal speculum to resolve the problems raised in the background art. Utility Model Content
[0005] The purpose of this invention is to provide an easy-to-operate vaginal speculum to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A user-friendly vaginal speculum, comprising:
[0008] The bearing mechanism includes a mounting ring and a pad, the pad being fixedly mounted on the lower surface of the mounting ring, and a plurality of fixing seats being fixedly provided on the circumferential side of the mounting ring;
[0009] An expansion mechanism includes a bearing mounted on a fixed seat. A movable part is mounted on one surface of the bearing and rotates with the bearing. A threaded hole is formed on one surface of the movable part, which passes through the fixed seat and the mounting ring. A threaded rod is threadedly connected inside the threaded hole, and a support is fixedly connected to one end of the threaded rod.
[0010] Preferably, the support member is an arc-shaped plate structure, and side wing fan plates are fixedly installed on both sides of the support member.
[0011] Preferably, an extension rod is fixedly installed on the peripheral side of the movable part.
[0012] Preferably, a positioning sleeve is fixedly installed on the upper surface of the mounting ring, and a positioning hole is opened inside the positioning sleeve, and a telescopic column is slidably connected inside the positioning hole.
[0013] Preferably, a column is fixedly connected to the upper surface of the support member, and the upper end of the column is connected to a telescopic column.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] (1) By setting up a support mechanism and an expansion mechanism, this utility model can insert the support into the patient's vagina during use, and make the pad abut against the patient's vulva. At this time, rotating the movable part will cause the threaded hole inside the movable part to engage with the threaded rod, which will allow the support to move along the direction of the threaded rod, thereby achieving the effect of expansion or contraction. Since this device has multiple support parts set on the mounting ring, and the multiple support parts are evenly distributed in a circle on the mounting ring, compared with the traditional vaginal speculum which only has an expansion structure of upper and lower two leaves, this device can fully expand the vagina, making it convenient for doctors to perform examinations and surgical operations.
[0016] (2) By installing side wing fan plates on both sides of the support, this utility model can increase the contact area between the support and the vaginal wall, thereby avoiding the problem of the doctor's examination and surgical operation being affected by the accumulation of vaginal wall in obese patients. By setting a telescopic column above the support and setting a corresponding positioning sleeve on the mounting ring, when the support moves, the sliding cooperation between the telescopic column and the positioning sleeve can provide a positioning effect for the support, thereby preventing the support from rotating when the movable part is rotated. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a front view of the present invention;
[0019] Figure 3This is a bottom-view three-dimensional structural diagram of the present invention;
[0020] Figure 4 This is an enlarged schematic diagram of a portion of the movable component of this utility model.
[0021] In the diagram: 1. Mounting ring; 2. Pad; 3. Support component; 4. Side wing fan plate; 5. Movable component; 6. Threaded rod; 7. Fixed seat; 8. Threaded hole; 9. Extension rod; 10. Bearing; 11. Column; 12. Telescopic column; 13. Positioning sleeve. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example 1:
[0024] Please see Figures 1-4 As shown, a vaginal speculum that is easy to operate includes:
[0025] The bearing mechanism includes a mounting ring 1 and a pad 2. The pad 2 is fixedly installed on the lower surface of the mounting ring 1, and several fixing seats 7 are fixedly provided on the periphery of the mounting ring 1.
[0026] The expansion mechanism includes a bearing 10 mounted on a fixed seat 7. A movable part 5 is mounted on one surface of the bearing 10. The movable part 5 is rotatably engaged with the bearing 10. A threaded hole 8 is opened on one surface of the movable part 5. The threaded hole 8 passes through the fixed seat 7 and the mounting ring 1. A threaded rod 6 is threadedly connected inside the threaded hole 8. A support member 3 is fixedly connected to one end of the threaded rod 6.
[0027] As can be seen from the above, this device, by setting up a support mechanism and an expansion mechanism, allows the support member 3 to be inserted into the patient's vagina during use, so that the pad 2 abuts against the patient's vulva. At this time, rotating the movable member 5 causes the threaded hole 8 inside the movable member 5 to engage with the threaded rod 6, allowing the support member 3 to move along the direction of the threaded rod 6, thereby achieving the effect of expansion and contraction. Since this device has four support members 3 set on the mounting ring 1, and the four support members 3 are evenly distributed in a circle on the mounting ring 1, compared with the traditional vaginal speculum which only has an expansion structure of upper and lower two leaves, this device can fully expand the vagina, making it convenient for doctors to perform examinations and surgical operations.
[0028] The support component 3 is an arc-shaped plate structure, and side wing fan plates 4 are fixedly installed on both sides of the support component 3.
[0029] Specifically, an extension rod 9 is fixedly installed on the periphery of the movable part 5.
[0030] As can be seen from the above, by installing side wing fan plates 4 on both sides of the support member 3, this device can increase the contact area between the support member 3 and the vaginal wall, thereby avoiding the problem of obese patients' vaginal wall accumulation affecting doctors' examination and surgical operations.
[0031] Example 2:
[0032] refer to Figures 1 to 4 As shown, a positioning sleeve 13 is fixedly installed on the upper surface of the mounting ring 1. A positioning hole is opened inside the positioning sleeve 13, and a telescopic column 12 is slidably connected inside the positioning hole.
[0033] Specifically, a column 11 is fixedly connected to the upper surface of the support member 3, and the upper end of the column 11 is connected to the telescopic column 12.
[0034] As can be seen from the above, by setting a telescopic column 12 above the support member 3 and setting a corresponding positioning sleeve 13 on the mounting ring 1, when the support member 3 moves, the sliding cooperation between the telescopic column 12 and the positioning sleeve 13 can provide a positioning effect for the support member 3, thereby preventing the support member 3 from rotating when the movable part 5 is rotated.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A vaginal speculum that is easy to operate, characterized in that, include: The bearing mechanism includes a mounting ring (1) and a pad (2). The pad (2) is fixedly installed on the lower surface of the mounting ring (1). Several fixing seats (7) are fixedly provided on the circumferential side of the mounting ring (1). An expansion mechanism is provided, comprising a bearing (10) mounted on a fixed seat (7), a movable part (5) mounted on one surface of the bearing (10), the movable part (5) being rotatably engaged with the bearing (10), a threaded hole (8) being provided on one surface of the movable part (5), the threaded hole (8) penetrating the fixed seat (7) and the mounting ring (1), a threaded rod (6) being threadedly connected inside the threaded hole (8), and a support member (3) being fixedly connected to one end of the threaded rod (6).
2. The vaginal speculum that is easy to operate according to claim 1, characterized in that: The support member (3) is an arc-shaped plate structure, and side wing fan plates (4) are fixedly installed on both sides of the support member (3).
3. The vaginal speculum that is easy to operate according to claim 1, characterized in that: An extension rod (9) is fixedly installed on the peripheral side of the movable part (5).
4. The vaginal speculum that is easy to operate according to claim 1, characterized in that: A positioning sleeve (13) is fixedly installed on the upper surface of the mounting ring (1). A positioning hole is provided inside the positioning sleeve (13), and a telescopic column (12) is slidably connected inside the positioning hole.
5. The vaginal speculum that is easy to operate according to claim 4, characterized in that: The upper surface of the support member (3) is fixedly connected to a column (11), and the upper end of the column (11) is connected to a telescopic column (12).