CN212546899U

CN212546899U - Gynecological vaginal dilator

Info

Publication number: CN212546899U
Application number: CN202020421693.2U
Authority: CN
Inventors: 王梅兰; 杨庆军
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-28
Filing date: 2020-03-28
Publication date: 2021-02-19
Anticipated expiration: 2030-03-28

Abstract

The utility model relates to the field of medical appliances, in particular to a gynecological vaginal dilator, which comprises an upper dilator sheet, a lower dilator sheet and an arch part connecting the rear corner parts of the upper dilator sheet and the lower dilator sheet; a threading ring is fixed on the inner side of the front end of the upper expansion piece, and a threading hole and a threading pipe are arranged on the arch part; the lower expansion piece is connected with a traction wire, and the tail end of the traction wire sequentially passes through the threading ring, the threading hole and the threading pipe; the upper expansion piece and the lower expansion piece of the traction line are pulled backwards to be capable of being closed to a buckling state; the upper expansion piece and the lower expansion piece can be reset to an open state after the traction wire is loosened; the traction wire is provided with a wire clamping device for preventing the traction wire from moving forwards. The vaginal dilator has simple structure and low cost, and is extremely suitable for one-time use; it can obtain a wide surgical field in clinical use, and can reduce the obstruction to diagnosis and treatment operations; the gynecological vaginal dilator has the advantages of balanced and adjustable expansion tension, good applicability, convenient and quick adjustment, time and labor saving, and wide clinical application prospect.

Description

Gynecological vaginal dilator

Technical Field

The utility model relates to a medical appliance, in particular to a medical vaginal dilator suitable for disposable use.

Background

The vaginal dilator is commonly used in routine examination and operation treatment of gynecological diseases, and is one of the medical instruments commonly used in gynecological clinical practice to dilate the vagina to obtain the necessary examination field or operation field. The currently commonly used vaginal dilator generally comprises an upper dilator, a lower dilator, a handle, a locking mechanism and other components, wherein the rear ends of the upper dilator and the lower dilator are hinged, the handle is respectively arranged at the tail ends of the upper dilator and the lower dilator for adjusting the opening angles of the upper dilator and the lower dilator, and the locking mechanism is used for locking the relative positions of the upper dilator and the lower dilator to maintain the expected dilatation. The conventional vaginal dilator is complex in structure and high in processing difficulty, is usually made of high-quality medical plastic with high strength, is high in manufacturing cost, can greatly increase the diagnosis and treatment cost of diseases when used as a disposable medical instrument, and is also seriously wasted after being discarded. In addition, because last expansion piece and lower expansion piece rear end both sides are articulated for the opening of vaginal dilator rear end is closed annular, influences the open nature of art field, and articulated position often can cause certain hindrance to the instrument operation and doctor's sight, influences diagnosis and treatment effect and efficiency.

SUMMERY OF THE UTILITY MODEL

The technical purpose of the utility model is to provide a simple structure, low cost, the art field is wider in clinical use, reducible hindrance to the operation of diagnosing and treating, and convenient to use swift gynaecology's vaginal dilator.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

the utility model provides a gynaecology's vaginal dilator, its includes last expansion piece and the lower expansion piece that is used for carrying out the expansion to the vagina, goes up expansion piece and lower expansion piece shape unanimity, all is curved surface form and by preceding back width crescent, its characterized in that: two corners of the rear ends of the upper expansion piece and the lower expansion piece, which are positioned on the same side, are connected through an arch part, so that the upper expansion piece and the lower expansion piece are distributed in a duckbill shape under the support of the arch part and are in an open state, and the arch part is positioned at the lateral rear parts of the upper expansion piece and the lower expansion piece and is of an integrated structure; a threading ring is fixed on the inner side of the front end of the upper expansion piece, a threading hole is formed in one end of the arch part connected with the upper expansion piece, and a threading pipe positioned on the rear side of the threading hole is fixed outside the arch part; the inner side of the front end of the lower expansion sheet is fixedly connected with the front end of a traction wire; the tail end of the traction wire penetrates through the threading ring and extends backwards along the inner side of the upper expansion piece, then extends to the outer part of the arch part through the threading hole and finally penetrates through the threading pipe; the traction line is drawn to move backwards along the threading pipe, the front ends of the upper expansion piece and the lower expansion piece are drawn by the traction line and are drawn close based on the elastic bending of the arch part, and finally the traction line can be drawn close to a buckling state; if the traction wire is loosened, the bow part drives the front ends of the upper expansion piece and the lower expansion piece to be gradually far away by utilizing elastic potential energy, and finally the bow part is reset to an opening state; the traction line is provided with a line clamping device which can clamp the traction line and can adjust the clamping position, and the line clamping device is used for being matched with the threading pipe to prevent the traction line from moving forwards.

The working principle and the using method of the gynecological vaginal dilator are as follows:

when the medical suture is clinically used, the tail end of the traction wire is pulled to enable the traction wire to move backwards along the threading tube, under the traction action of the traction wire, the front ends of the upper expansion piece and the lower expansion piece draw close the elastic bending based on the arch part, when the buckling state is reached, the wire clamping device clamps the traction wire at the rear end of the threading tube, and then the traction wire cannot move forwards, so that the upper expansion piece and the lower expansion piece are kept in the buckling state, and therefore the upper expansion piece and the lower expansion piece can be safely and smoothly placed into a patient; after the upper expansion piece and the lower expansion piece are placed in proper positions in a patient body, the clamping effect of the thread clamping device on the traction thread is relieved, the pulling force of the traction thread caused by people is properly reduced, the arch part drives the upper expansion piece and the lower expansion piece to gradually open by utilizing the elastic potential energy accumulated by the arch part, the vagina is expanded, after the vaginal expansion degree is proper, the thread clamping device clamps the traction thread at the rear end of the threading tube again, and then the upper expansion piece and the lower expansion piece maintain the constant expansion degree, so that the ideal vaginal expansion effect is realized, and the corresponding clinical diagnosis and treatment operation can be carried out; after the clinical diagnosis and treatment operation is finished, the front ends of the upper expansion sheet and the lower expansion sheet are closed to a buckling state in a traction line pulling mode, so that the upper expansion sheet and the lower expansion sheet can be safely and smoothly taken out of the body of the patient.

Furthermore, when the gynecological vaginal dilator is in an initial state, the thread clamping device is abutted against the rear end of the threading tube and clamps the traction thread, and the traction thread is in a tightening state to enable the upper dilating piece and the lower dilating piece to be kept in a buckling state.

Further, in the gynecological vaginal dilator, the traction wire is a nylon wire.

Furthermore, in the gynecological vaginal dilator, the inner side wall of the upper dilator sheet is provided with a plurality of lead rings for guiding the trend of the traction line.

Furthermore, in the gynecological vaginal dilator, the upper dilating sheet, the lower dilating sheet and the bow part are made of transparent plastic materials.

Furthermore, in the gynecological vaginal dilator, the arch part and the threading tube are of an integral structure.

Furthermore, in the gynecological vaginal dilator, the upper dilating sheet, the lower dilating sheet and the bow part are formed by cutting and shaping a same plane plate.

Furthermore, in the gynecological vaginal dilator, the upper dilating sheet, the lower dilating sheet and the bow part are formed by shaping a same plane plate and then cutting.

Furthermore, in the gynecological vaginal dilator, the upper dilating plate, the lower dilating plate and the bow part are made of the same elastic material.

Furthermore, in the gynecological vaginal dilator, the tail end of the traction line is provided with an annular rope buckle convenient for fingers to pull.

Further, in the gynecological vaginal dilator, the thread clamping device is a common clamp.

Compared with the prior art, the gynecological vaginal dilator has the following beneficial effects:

the gynecological vaginal dilator has a very simple structure, the main body part can be integrally formed, the manufacturing is easy, the required manufacturing materials are less, the cost is lower than that of the conventional vaginal dilator, and the gynecological vaginal dilator is very suitable for disposable use and is beneficial to ensuring the sterility and sanitation of clinical operation; because the rear ends of the upper expansion piece and the lower expansion piece are not provided with hinged parts, and the bow part is not positioned right behind the upper expansion piece and the lower expansion piece, the gynecological vaginal dilator can obtain a wider operative field in clinical use, thereby improving the operation or examination effect; the upper expansion sheet and the lower expansion sheet in the gynecological vaginal dilator are consistent in structure and do not have real upper and lower parts, the upper and lower positions of the upper expansion sheet and the lower expansion sheet can be flexibly changed according to clinical practical requirements in clinical use, so that the arch part is positioned on one side which does not obstruct clinical operation, particularly in local operations such as wart body and polyp removal, after the arch part is reasonably adjusted, the focus part positioned on one side of the vaginal wall is more fully exposed, and the gynecological vaginal dilator is more beneficial to observation or operation; when the gynecological vaginal dilator is used clinically, the bow part provides expansion power, the expansion force tends to be balanced, and the upper expansion piece and the lower expansion piece cannot be expanded continuously after being expanded to a certain angle; this vaginal dilator of gynaecology possesses expansion degree regulatory function, can be applicable to the great different patients of individual difference, can satisfy different clinical operation demands, because the regulation of expansion degree is realized through the mode of tractive pull wire and regulation trapping mechanism, operates very convenient and fast, labour saving and time saving.

Drawings

Fig. 1 is one of the structural schematic diagrams of the gynecological vaginal dilator.

Fig. 2 is a second schematic structural view of the gynecological vaginal dilator.

Fig. 3 is a schematic view illustrating the principle of adjusting the opened state of the upper and lower expansion pieces by pulling a traction wire.

Fig. 4 is a schematic view of the front end of the gynecological vaginal dilator in a buckled state.

Fig. 5 is a schematic view of the gynecological vaginal dilator in a state of vaginal dilation.

Fig. 6 is a schematic view of the gynecological vaginal dilator after a guide wire ring is added.

In the figure, 1, an upper expansion piece, 2, a lower expansion piece, 3, a traction line, 4, a threading hole, 5, a threading pipe, 6, a thread clamping device, 7, an annular rope buckle, 8, an arch part, 9, a threading ring, 10 and a thread guide ring.

Detailed Description

Referring to fig. 1-5, the utility model discloses a gynecological vaginal dilator, which comprises an upper dilator sheet 1 and a lower dilator sheet 2, wherein the upper dilator sheet 1 and the lower dilator sheet 2 are identical in shape, both are curved and gradually increase in width from front to back, and the upper dilator sheet 1 and the lower dilator sheet 2 are matched to expand the vagina; two corner parts of the rear ends of the upper expansion piece 1 and the lower expansion piece 2, which are positioned on the same side, are connected through an arch part 8, the upper expansion piece 1 and the lower expansion piece 2 are distributed in a duckbill shape under the support of the arch part 8, and the upper expansion piece 1 and the lower expansion piece 2 are in an open state when the upper expansion piece 1, the lower expansion piece 2 and the arch part 8 are not subjected to external force; the arch part 8 is positioned at the side rear part of the upper expansion piece 1 and the lower expansion piece 2 and is of an integrated structure, namely the arch part 8, the upper expansion piece 1 and the lower expansion piece 2 can be integrally formed during manufacturing; an annular threading ring 9 is fixed on the inner side of the front end of the upper expansion piece 1, namely the side opposite to the lower expansion piece 2, a threading hole 4 for threading the inner side and the outer side is formed in one end of the arch part 8 connected with the upper expansion piece 1, a threading pipe 5 is fixed outside the arch part 8, and the threading pipe 5 is positioned on the rear side of the threading hole 4; the inner side of the front end of the lower expansion sheet 2 is fixedly connected with the front end of a traction wire 3; the tail end, namely the rear end, of the traction wire 3 passes through the threading ring 9 from front to back and extends backwards along the inner side of the upper expansion piece 1, then extends to the outside of the arch part 8 through the threading hole 4, and finally passes through the threading pipe 5 to continue to extend backwards; in the process of drawing the traction line 3 to move backwards along the threading pipe 5, under the traction of the traction line 3, the front ends of the upper expansion piece 1 and the lower expansion piece 2 are drawn towards the middle based on the elastic bending (elastic deformation) of the arch part 8, and finally can be drawn to a buckling state, because the upper expansion piece 1 and the lower expansion piece 2 adopt a curved surface structure, the upper expansion piece 1 and the lower expansion piece 2 have higher strength and are not easy to deform, so that the front ends of the upper expansion piece 1 and the lower expansion piece 2 are ensured to be drawn together based on the elastic bending of the arch part 8; when the traction wire 3 is loosened, the bow-shaped part 8 drives the front ends of the upper expansion piece 1 and the lower expansion piece 2 to be gradually far away by utilizing the elastic potential energy accumulated by the bow-shaped part, and finally the upper expansion piece 1 and the lower expansion piece 2 are reset to be in a fully opened state; the traction line 3 is provided with a line clamping device 6, the line clamping device 6 can clamp the traction line 3, the clamping position can be adjusted, and the line clamping device 6 is used for being matched with the rear end of the threading tube 5 to prevent the traction line 3 from moving forwards, so that the upper expansion piece 1 and the lower expansion piece 2 are kept in a constant state.

referring to fig. 3 and 4, in clinical use, the tail end of the traction wire 3 is pulled, the traction wire 3 moves backwards along the threading tube 5, under the traction action of the traction wire 3, the front ends of the upper expansion piece 1 and the lower expansion piece 2 draw close based on the elastic bending of the arch part 8, when the buckling state is reached, the wire clamping device 6 clamps the traction wire 3 at the rear end of the threading tube 5, and then the traction wire 3 cannot move forwards under the constraint of the wire clamping device 6, so that the upper expansion piece 1 and the lower expansion piece 2 maintain the buckling state, and therefore the upper expansion piece 1 and the lower expansion piece 2 can be safely and smoothly placed into a patient; referring to fig. 3 and 5, after the upper and

lower dilation pieces

1 and 2 are placed in the proper position of the patient, the clamping action of the thread clamping device 6 on the traction thread 3 is released, the pulling force of the traction thread 3 is properly reduced, the arch part 8 drives the upper and

lower dilation pieces

1 and 2 to gradually open by using the elastic potential energy accumulated by the arch part, so as to dilate the vagina, when the vaginal dilation degree can meet the requirement of clinical operation, the thread clamping device 6 clamps the traction thread 3 at the rear end of the threading tube 5 again, and then the upper and

lower dilation pieces

1 and 2 maintain the constant dilation degree under the traction of the traction thread 3, namely maintain the ideal constant vaginal dilation effect, thereby carrying out the corresponding clinical diagnosis and treatment operation; referring to fig. 3 and 4, after the clinical diagnosis and treatment operation is completed, the front ends of the upper expansion piece 1 and the lower expansion piece 2 are closed again to a locked state by pulling the traction wire 3, so that the upper expansion piece 1 and the lower expansion piece 2 can be safely and smoothly taken out of the patient.

Referring to fig. 1 and 2, the gynecological vaginal dilator has a very simple structure, a main body part consisting of the upper dilating tablet 1, the lower dilating tablet 2 and the bow part 8 can be integrally formed, the process is simple, the manufacturing is easy, the required manufacturing materials are less, the cost is lower than that of the conventional vaginal dilator, and the gynecological vaginal dilator is very suitable for disposable use and is beneficial to ensuring the sterility and sanitation in clinical operation.

Referring to fig. 5, in clinical use of the gynecological vaginal dilator, since there is no hinge part at the rear ends of the upper dilator blade 1 and the lower dilator blade 2, and the bow part 8 is not located right behind the upper dilator blade 1 and the lower dilator blade 2, a wider surgical field can be obtained, thereby improving the surgical or examination effect.

Referring to fig. 1 and 5, the upper dilator sheet 1 and the lower dilator sheet 2 of the gynecological vaginal dilator are identical in structure and do not have real upper and lower parts, and the upper and lower positions of the upper dilator sheet 1 and the lower dilator sheet 2 can be flexibly changed according to clinical practical requirements in clinical use, so that the arch part 8 is positioned on one side which does not obstruct clinical operation, and particularly in local operations such as wart body and polyp removal, after the position of the arch part 8 is reasonably adjusted, a focus part positioned on one side of a vaginal wall can be more fully exposed, and observation or operation is more facilitated.

Referring to fig. 3 and 5, when the gynecological vaginal dilator is used clinically, the bow-shaped part 8 provides expansion power, the expansion force tends to be balanced, when the upper expansion piece 1 and the lower expansion piece 2 are expanded to a certain angle, the vaginal dilator cannot be expanded continuously, compared with the conventional vaginal dilator which provides expansion force manually, the vaginal dilator is safer, and injury to patients due to over-expansion can be avoided.

Referring to fig. 3 and 5, the gynecological vaginal dilator has the function of adjusting the dilation degree, can be suitable for different patients with large individual difference, and can meet different clinical operation requirements.

Referring to fig. 1, 2 and 3, in the gynecological vaginal dilator, the upper dilating plate 1, the lower dilating plate 2 and the bow part 8 are made of the same elastic material; therefore, the processing and the manufacturing are more facilitated, although the upper expansion piece 1 and the lower expansion piece 2 are both made of elastic materials, the upper expansion piece 1 and the lower expansion piece 2 are of curved surface structures, the whole body has higher strength and is not easy to deform, so that the change of the opening state of the upper expansion piece 1 and the lower expansion piece 2 is completely from the elastic deformation of the arch part 8, and therefore, in the process of expanding the vagina, the upper expansion piece 1 and the lower expansion piece 2 can keep constant shapes to be matched with the physiological structure of the vagina, and the uniform and balanced expansion force applied to the inner wall of the vagina is ensured; in addition, in order to ensure that the bow-shaped part 8 has larger elasticity, when the gynecological vaginal dilator is implemented, the bow-shaped part 8 can adopt a thickened design, and a reinforcing rib can also be arranged on the bow-shaped part 8, so that the elasticity performance of the bow-shaped part 8 can ensure that the upper expansion piece 1 and the lower expansion piece 2 can realize the expected expansion effect.

Referring to fig. 1 and 2, in the vaginal dilator for gynecology, the upper dilator blade 1, the lower dilator blade 2 and the arch portion 8 are integrated, i.e. integrally formed, and the three have various processing methods, preferably the following methods:

firstly, the upper expansion piece 1, the lower expansion piece 2 and the arch part 8 are formed by cutting a same plane plate and shaping; specifically, a plane blank is cut on a plane plate, the plane blank comprises plane parts respectively corresponding to the upper expansion piece 1, the lower expansion piece 2 and the arch part 8, and each plane part is shaped by adopting conventional processes such as mould pressing, hot bending and the like, so that the upper expansion piece 1, the lower expansion piece 2 and the arch part 8 are finally formed and keep the expected position relation;

the second is that the upper expanding sheet 1, the lower expanding sheet 2 and the arch part 8 are formed by shaping a same plane plate and then cutting; specifically, a planar plate is selected and subjected to shaping treatment by conventional processes such as die pressing, hot bending and the like to form a curved blank, the curved blank comprises curved parts corresponding to the upper expansion piece 1, the lower expansion piece 2 and the arch part 8 respectively, redundant leftover materials are cut off, and the upper expansion piece 1, the lower expansion piece 2 and the arch part 8 are finally formed and keep the specific position relation.

Referring to fig. 5, in clinical use of the gynecological vaginal dilator, although the part of the traction wire 3 located in front of the threading ring 9 extends between the front ends of the upper dilator piece 1 and the lower dilator piece 2, the traction wire 3 located in front of the threading ring 9 is located forward, and the traction wire 3 can be a thin rope, so the traction wire 3 located in front of the threading ring 9 generally does not interfere with the conventional clinical operation; meanwhile, when the gynecological vaginal dilator is implemented, the relative positions of the threading ring 9 and the threading hole 4 are reasonably adjusted, so that the traction wire 3 positioned between the threading ring 9 and the threading hole 4 and the inner wall of the upper dilation sheet 1 tend to be attached closely, and the clinical operation is prevented from being hindered; in addition, because the traction line 3 is always positioned at the inner side of the upper expansion sheet 1 before being led out from the threading hole 4, the traction line 3 can not be contacted with a patient in the process of implementing vaginal expansion, thereby avoiding scratching the patient in the process of drawing the traction line 3; in conclusion, the arrangement of the traction wire 3 does not have adverse effect on the actual clinical use effect of the gynecological vaginal dilator, and the gynecological vaginal dilator can be suitable for various clinical operations such as cervical examination, conventional vaginal examination, vaginal administration and sampling, and has wide clinical application prospect;

further, referring to fig. 6, in order to make a part of the pulling wire 3 between the threading ring 9 and the threading hole 4 more closely contact with the inner wall of the upper expansion piece 1, a plurality of wire guiding rings 10 for guiding the pulling wire 3 are arranged on the inner side wall of the upper expansion piece 1.

Referring to fig. 4, when the gynecological vaginal dilator is clinically used, the front ends of the upper dilator sheet 1 and the lower dilator sheet 2 need to be adjusted to be in a buckling state before being placed into the vagina of a patient, in order to ensure that the gynecological vaginal dilator is more efficient and convenient to use and operate clinically, the state of a product after the gynecological vaginal dilator is processed is that, in an initial state, the thread clamping device 6 abuts against the rear end of the threading tube 5 and clamps the traction thread 3, and the traction thread 3 is in a tightening state so that the upper dilator sheet 1 and the lower dilator sheet 2 are kept in the buckling state; therefore, in clinical use, the state of the gynecological vaginal dilator does not need to be adjusted by a user in advance before the gynecological vaginal dilator is placed into a vagina of a patient.

Referring to fig. 5, in the gynecological vaginal dilator, the smaller the diameter of the traction wire 3, the less it will interfere with clinical diagnosis and treatment, so the traction wire 3 should be a thin wire with high strength, preferably a nylon wire.

In the gynecological vaginal dilator, the upper dilating tablet 1, the lower dilating tablet 2 and the bow part 8 are preferably made of transparent plastic materials, so that the operation field is more sufficient in clinical use.

Referring to fig. 4 and 5, in the gynecological vaginal dilator, the matching mode of the threading tube 5 and the thread clamping device 6 is ingenious, on one hand, the two are matched to provide a stable supporting function for the tail end of the traction thread 3, on the other hand, the two are simple in structure, small in implementation difficulty and low in cost, and in addition, the operation is simple, easy, convenient and quick when the position of the traction thread 3 is adjusted based on the matching mode of the threading tube 5, the thread clamping device 6 and the traction thread 3; in summary, the above design can be an extremely simple way to solve the especially important technical task; when the gynecological vaginal dilator is implemented, the arch part 8 and the threading tube 5 are preferably of an integral structure, and the thread clamping device 6 can be a common clamp.

Referring to fig. 2 and 3, in the gynecological vaginal dilator, the tail end of the traction wire 3 is provided with an annular rope buckle 7 convenient for fingers to pull; therefore, when the gynecological vaginal dilator is adjusted in the using process, the tail end of the traction wire 3 can be pulled more conveniently by means of the annular rope buckle 7.

Claims

1. The utility model provides a gynaecology's vaginal dilator, its includes last expansion piece and the lower expansion piece that is used for carrying out the expansion to the vagina, goes up expansion piece and lower expansion piece shape unanimity, all is curved surface form and by preceding back width crescent, its characterized in that: two corners of the rear ends of the upper expansion piece and the lower expansion piece, which are positioned on the same side, are connected through an arch part, so that the upper expansion piece and the lower expansion piece are distributed in a duckbill shape under the support of the arch part and are in an open state, and the arch part is positioned at the lateral rear parts of the upper expansion piece and the lower expansion piece and is of an integrated structure; a threading ring is fixed on the inner side of the front end of the upper expansion piece, a threading hole is formed in one end of the arch part connected with the upper expansion piece, and a threading pipe positioned on the rear side of the threading hole is fixed outside the arch part; the inner side of the front end of the lower expansion sheet is fixedly connected with the front end of a traction wire; the tail end of the traction wire penetrates through the threading ring and extends backwards along the inner side of the upper expansion piece, then extends to the outer part of the arch part through the threading hole and finally penetrates through the threading pipe; the traction line is drawn to move backwards along the threading pipe, the front ends of the upper expansion piece and the lower expansion piece are drawn by the traction line and are drawn close based on the elastic bending of the arch part, and finally the traction line can be drawn close to a buckling state; if the traction wire is loosened, the bow part drives the front ends of the upper expansion piece and the lower expansion piece to be gradually far away by utilizing elastic potential energy, and finally the bow part is reset to an opening state; the traction line is provided with a line clamping device which can clamp the traction line and can adjust the clamping position, and the line clamping device is used for being matched with the threading pipe to prevent the traction line from moving forwards.

2. A gynecological vaginal dilator, as claimed in claim 1, characterised in that: in the initial state, the thread clamping device is abutted against the rear end of the threading tube and clamps the traction thread, and the traction thread is in a tightening state to enable the upper expansion piece and the lower expansion piece to be kept in a buckling state.

3. A gynecological vaginal dilator, as claimed in claim 1, characterised in that: the traction line is a nylon line.

4. A gynecological vaginal dilator, as claimed in claim 1, characterised in that: the bow-shaped part and the threading pipe are of an integral structure.

5. A gynecological vaginal dilator, as claimed in claim 1, characterised in that: the upper expanding piece, the lower expanding piece and the arch part are formed by cutting and shaping a plate material with the same plane.

6. A gynecological vaginal dilator, as claimed in claim 1, characterised in that: the upper expansion piece, the lower expansion piece and the arch part are formed by shaping a plate material on the same plane and then cutting the plate material.

7. A gynecological vaginal dilator, as claimed in claim 1, characterised in that: the upper expansion sheet, the lower expansion sheet and the arch part are made of the same elastic material.

8. A gynecological vaginal dilator, as claimed in claim 1, characterised in that: the wire clamping device is a common clamp.