CN111990958A - Vaginal dilator for cervix examination and operation - Google Patents

Abstract

A vaginal dilator for cervix examination and operation comprises an upper dilating plate and a lower dilating plate, wherein the upper dilating plate comprises an upper wing and a pressing handle which is integrated with the upper wing and extends downwards along one side of the upper wing in an obtuse angle direction, the lower dilating plate comprises a lower wing and a holding handle which is integrated with the lower wing and extends downwards along one side of the lower wing in a direction close to a right angle, two sides of the rear ends of the upper wing and the lower wing are connected with a shaft hole through shaft pins, the pressing handle and the holding handle are positioned through a first dilating positioning device and an upper auxiliary wing and a lower auxiliary wing which are respectively accommodated on the inner side surfaces of the upper wing and the lower wing, the vaginal dilator is characterized by further comprising a second dilating positioning device which is meshed with the positioning connecting piece and the side dilating plate, and one of the holding handle is provided with an instant strip at a position corresponding to a buckle of the lower auxiliary wing. The invention has simple structure, simple and convenient operation, easy manufacture, economy, practicality, safe and effective use.

Description

Vaginal dilator for cervix examination and operation

Technical Field

The invention relates to a vaginal dilator of a medical instrument of an obstetrics and gynecology department, in particular to a vaginal dilator for cervical examination and operation.

Background

The vaginal dilator, also called vaginal speculum, etc., is a common examination and operation instrument for gynecology. For exposing the examination or surgical site. Through domestic and foreign literature retrieval, the U.S. patent office records that the vaginal dilator with the spiral pair fixing structure invented by Americans John L.Marco in 1949, one double-wing vaginal dilator needs twelve parts at least for examination, and eight parts at least for operation, and has the advantages that the opening angle of the upper wing and the lower wing is more than 40 degrees during expansion, the vagina can be effectively expanded, the cervix and the posterior fornix are exposed, the examination and the operation are facilitated, the number of parts is large, the operation is complicated and time-consuming, the manufacturing cost is high, and the defect that the vaginal dilator is not suitable for being manufactured and used once is overcome; according to the record of the Chinese patent office, the vaginal dilator with patent authorization number 891083928 (which is a short name for a double-wing vaginal dilator) invented by the Linjing teacher of Wenzhou medical university in China in 1989 only has two parts to form one vaginal dilator no matter in an examination type or an operation type, and has all the advantages invented by Americans in terms of function, and the advantages of few parts, convenient operation, high speed, low manufacturing cost, suitability for manufacturing and one-time use and the like.

The double-wing vaginal dilator comprises an upper wing and a lower wing which can be opened and closed and are in a duckbill shape, the upper wing and the lower wing are kept to be opened at a certain angle through a positioning device on the dilator, and a doctor observes, inspects and performs an operation through the opened visual field range of the upper wing and the lower wing. With the appearance and increase of new diseases, patients with obesity and loose vagina and patients needing ultrahigh frequency electric wave knife operation (also called LEEP knife) are clinically used, the double-wing vaginal dilator with only the upper wing and the lower wing is used, after the upper wing and the lower wing are opened, the vaginal wall between the two sides of the upper wing and the lower wing is backfilled into the opened area, so that the exposure range is reduced, and the difficulty is brought to examination or operation. If the opening height of the upper wing and the lower wing is increased, the backfill is increased besides the pain of the patient, so that the method is not a good countermeasure. On the other hand, in the field of obstetrics and gynecology, as more and more cervical cancer patients are in recent years, the use of the ultrahigh frequency electric wave knife can generate the scorching and smelly harmful smoke in the throat during operation, which affects the health of doctors and patients, so the vaginal dilator with the smoke exhaust device is clinically needed.

With the continuous improvement of science and technology, more and more electronic products are applied to medical instruments, and the vaginal dilator is also required to have the functions of illumination, camera shooting and the like.

For example, U.S. Patent Number: 6,024,696 discloses a lateral wall supporting speculum, namely a four-wing vaginal dilator, with twenty or more parts, complex structure, complex operation and labor-consuming, high cost, a lateral wall supporting four-wing speculum including an upper wing, a pressing handle and an upper handle, the upper handle connected with the upper wing by a pin, the upper wing also provided with a smoke exhaust setting device for placing smoke exhaust pipe, and a lower expansion piece including a lower wing and a second handle, the handles fixed with the second handle by screw nuts, the upper and lower wings arranged with a left and a right expansion piece, the rear parts of the left and right expansion pieces extending left and right to a left and a right winglet, the upper and the lower winglets extending front and back pins, the pins passing through the front and back locating slots on the rear end of the lower wing, and the left and right mounting screw holes on the handles for mounting spring pressing sheets to press the rear axons of the left and right expansion pieces to keep the vertical position of the left and right expansion pieces, the defect is that the complicated structure can not cause the left and right expansion pieces to expand outwards and can not cause the left and right expansion pieces to recover inwards! But only the left and right expansion pieces can be laid down and erected to support the vaginal side wall, which inevitably results in small operation space, insufficient operation field and lack of practical value.

In addition, international application PCT/AU98/00737 discloses a "speculum", which proposes a solution: a speculum comprises a body having two spreading fingers 14A, 14B connected at their proximal ends to the body, between which fingers another spreading finger 28 extends and is fixed, an actuator being pivotally connected to the body, the actuator being formed with a spreading finger 70 opposite the fixed finger 28 between the fingers 14A, 14B, which finger starts to rotate away from the remaining fingers as soon as the actuator is pivoted, after the actuator has been turned through a certain angle, comes into contact with the inside of the fingers 14 near their proximal ends, moving the distal ends of those fingers apart from each other, the fingers 14A, 14B being hinged about oblique hinge axes so that when the actuator abuts them they move in a combined motion upwards and sideways. The defect is that the structure is too complex, the parts are too many and are difficult to operate, and the side expansion pieces are arranged outside the upper wing and the lower wing and cannot be recovered into the upper wing and the lower wing, so that the side expansion pieces can bring pains to patients when entering the vagina.

The four-wing speculum invented by Americans has many parts, even more than 20 parts, is tedious and heavy, is inconvenient to operate, has high manufacturing cost and many defects, and the four-wing speculum invented by Chinese people's quiet forest, Zhangxing star and the like (the patent name is ' vaginal dilator with double side wings '), the patent authorization number of the Chinese invention is ZL201010227014.9, one four-wing speculum has only 4 parts (comprising an upper dilating plate, a lower dilating plate, a positioning sleeve and a pair of side dilating plates) in total, the number of the parts is extremely small, the operation is simple, the four-wing speculum is economical and practical, and the four-wing speculum has excellent functions, and the four-wing speculum invented by Americans is far superior to the four-wing speculum invented by Americans in any aspect. In addition, a large amount of smoke is generated in the ultrahigh frequency electric wave knife operation and needs functions of smoke exhaust, illumination and the like, the ultrahigh frequency electric wave knife operation is also the 'vaginal dilator with attached wings on the upper wing and the lower wing' which is originally invented by Zhang Xingxing and forest silence in China, the Chinese patent of invention is granted with the authorization number of ZL201010227012.X, the upper attached wing and the lower attached wing are originally arranged on the inner surfaces of the upper wing and the lower wing at home and abroad, the problem that toxic smoke can be quickly removed at the position nearest to the operation in the LEEP operation is solved, the aim is to protect the body health of medical staff and patients and relieve the pollution of an operating room, and the functions of illumination, camera shooting and the like.

Both patents we have filed for US patents and european patents together and have been granted by the US patent office, US 8,876,711B2EP and european patent office, EP 2586486B 1.

When the upper wing and the lower wing are expanded, the opening angle of the upper wing and the lower wing is more than 40 degrees, the upper wing and the lower wing can be recovered and closed, the safe and effective index of the vaginal dilator is provided, how to expand the left wing and the right wing is arranged in front of a user, the opening angle of the left wing and the right wing can also be more than 40 degrees, and the vaginal dilator can also be recovered and closed, which is a long-standing difficult problem and is finally solved by Chinese people. Compared with the four-wing vaginal dilator invented by foreigners, the advantages of all aspects are obvious.

So far, the four-wing vaginal dilator at home and abroad has a common defect that only one handle (or a pipe joint) is arranged at the rear end of a left dilating slice and a right dilating slice without a second handle, in clinical operation, the first handle can not easily raise the second positioning hook, so that the second positioning buckle can not be easily accessed, even if the second positioning hook is forced to enter the second positioning buckle, the second positioning hook can not be separated from the positioning buckle and loses the practical value, so the invention adds the second handle during the design, the results are completely different, the doctor can cause the inner side end of the side expansion piece gear below the second handle to be upwarped and easily engaged with or disengaged from the positioning connecting gear by kneading the first handle and the second handle, and the operation is convenient and the adjustment is free, which has substantial significance for the fundamental change and progress of the prior defects of the known technology and makes the technology practical.

On the other hand, the media reports that lawless persons are recycled, so that the inventor of China, forest silence and Zhangxing, first invented in 2004 "instant disposable aseptic vaginal dilator" (the patent name is instant painless noiseless disposable vaginal dilator, the patent authorization is 200420116743.7), the principle is that an "instant zone" is arranged at the non-stressed part of the dilator handle or the pressing handle, the "instant zone" is broken after use to realize destruction, the purpose of non-reuse is achieved, however, in practical application, the "instant zone" is easy to break during transportation, and the "instant zone" is shallow to be difficult to break and other defects.

Therefore, the vaginal dilator needs to be further researched, the defects are overcome, and a new product rule is created, so that the vaginal dilator is better and more perfect.

Disclosure of Invention

The invention aims to provide a vaginal dilator which can overcome the defects of the prior art and has a novel structure for cervical examination and operation.

In order to achieve the above object, the vaginal dilator for cervical examination and operation provided by the technical scheme of the invention comprises an upper dilating blade and a lower dilating blade, wherein the upper dilating blade comprises an upper wing and a pressing handle which is integrated with the upper wing and extends downwards along one side of the upper wing in an obtuse angle direction, the lower dilating blade comprises a lower wing and a holding handle which is integrated with the lower wing and extends downwards along one side of the lower wing in a direction close to a right angle, two sides of the rear ends of the upper wing and the lower wing are connected with a shaft hole through a shaft pin, the pressing handle and the holding handle are positioned through a first dilating positioning device and are respectively accommodated in an upper attached wing and a lower attached wing on the inner side surfaces of the upper wing and the lower wing, and the vaginal dilator further comprises a second dilating positioning device which is engaged with the side dilating blade, and one of the holding handle is provided with an instant strip;

the inner side of the lower part of the positioning connecting piece is provided with a positioning connecting piece shaft pin extending inwards in the radial direction and is rotatably and detachably connected with a second shaft hole at the rear end of the upper wing, the outer side of the positioning connecting piece shaft pin is also provided with a positioning connecting piece shaft hole capable of receiving the side expansion piece corner shaft pin and rotatably and detachably connected, and the top of the positioning connecting piece is also provided with a positioning connecting piece gear meshed with the side expansion piece gear;

the front inner side of the gear is provided with a side expansion piece corner shaft pin which extends inwards in the radial direction and turns backwards, and the front part of the corner shaft pin is a side wing;

the pipe joint or the first handle and the second handle are kneaded oppositely to drive the free end of the side expansion piece gear to tilt upwards above the positioning connecting piece gear so that the inner diameter distance between the outwards horizontally opened left and right side wings reaches more than 88mm and the inwards opened left and right side wings are folded between the upper and lower wings.

Preferably, the side expansion piece can be provided with a left expansion piece or a right expansion piece according to clinical needs, or can be provided with a left expansion piece and a right expansion piece simultaneously; and the left and right expansion pieces can be additionally provided with an upper attaching wing according to clinical requirements, or additionally provided with a lower attaching wing, or additionally provided with the upper attaching wing and the lower attaching wing at the same time.

Preferably, one end of the side expansion piece gear is fixedly connected with the side wing, the other end of the side expansion piece gear is a free end, and the second handle is arranged at the free end.

Preferably, the expansion angle of the upper and lower wings in the maximum gear expanded state is greater than 40 °.

Preferably, the corner shaft pin of the side expansion piece is connected through the shaft hole of the positioning connecting piece, the shaft pin of the positioning connecting piece is connected with the second shaft hole at the rear end of the upper wing to rotate, the pipe joint is pulled, and the side expansion piece and the positioning connecting piece are driven to rotate in the second shaft hole of the upper wing, so that the upper and lower dwelling positions of the side wing are adjusted.

Preferably, the upper expansion piece includes: the upper wing and the pressing handle are integrated with the upper wing and extend backwards along the rear end of one side of the upper wing, a shaft pin is arranged between the upper wing and the pressing handle, and a second shaft hole capable of receiving the shaft pin of the positioning connecting piece is arranged in front of the shaft pin;

preferably, the lower expansion panel comprises: the lower wing and the grab handle which is integrated with the lower wing and extends downwards from the rear end of the lower wing, and a shaft hole is arranged between the lower wing and the grab handle.

Preferably, the front end of the instant strip is connected with the grab handle through a lace and the rear end of the instant strip is connected with the grab handle through a material reducing groove respectively, the left side and the right side of the instant strip are hollow windows, and a small protrusion higher than the plane of the grab handle is arranged above the center of the instant strip.

Preferably, the position and the size of the instant destroying strip are matched with the lower attached wing buckle, the lower attached wing buckle is pressed into the instant destroying strip, the instant destroying strip is immediately broken into an instant destroying hole, and the instant destroying hole is fixed with the lower attached wing buckle in a matching mode.

Preferably, the lower attached wing is provided with a channel, the channel consists of a channel main body and a channel cover which is closely matched with the channel main body, the edge of the channel main body is provided with a groove which is used for being embedded into the channel cover, the lower surface and the left and right sides of the front end of the channel main body are respectively provided with at least more than one opening, the channel cover is provided with at least one opening facing to a vagina, a lower attached wing buckle is arranged below the lower attached wing close to the tail part, the lower attached wing buckle is pressed into the instant-destroying hole on the grab handle to be fixed, and the rear end of the lower attached wing is a lower attached wing pipe joint.

Preferably, the upper attached wing is provided with a channel, the channel consists of a channel main body and a channel cover which is matched with the channel main body in a matching way, the edge of the channel main body is provided with a groove which is embedded into the channel cover, the channel cover is at least provided with an opening facing to the vagina, the rear end of the channel is provided with an upper attached wing pipe joint, the front surface of the rear part of the upper attached wing, which is close to the top end, is provided with an upper attached wing hook, the upper attached wing hook is buckled into a limit groove in the middle part of the rear end of the upper wing to be detachable and rotatably fixed, and the upper attached wing pipe joint is pulled to enable the upper attached wing to rotate to the left edge of the upper wing or rotate.

Preferably, the first expansion positioning device consists of a positioning hook and a positioning buckle, the positioning hook at least has one or more than one, the positions of the positioning hook and the positioning buckle can be interchanged, and the opening angle of the upper wing and the lower wing can be larger than 40 degrees when the positioning hook and the positioning buckle are meshed and expanded to the maximum gear.

Preferably, the first expansion positioning device comprises a positioning plate provided with an arc-shaped groove on the pressing handle, wherein the arc-shaped groove takes a pin shaft connected with the upper wing and the lower wing as a rotation center, a screw rod with a screw cap and penetrating through the arc-shaped groove on the positioning plate is arranged on the holding handle, and when the screw cap and the screw rod are screwed and expanded to a maximum gear, the opening angle of the upper wing and the lower wing is larger than 40 degrees.

Preferably, the shaft pin, the positioning connecting piece shaft pin and the side expansion piece corner shaft pin are large at two ends, small in the middle, solid at the middle lower part, and split at the middle upper part, the edge diameter of the split is larger than that of the split, and the whole body is dumbbell-shaped.

Preferably, the upper and lower appendage is also suitable for use with other double, triple, quad or multi-winged vaginal dilators.

When the vaginal dilator adopting the scheme is used, the left wing and the right wing are folded between the upper wing and the lower wing and are placed into a vagina in a closed state, the grab handle and the press handle are controlled to open the upper wing and the lower wing to a required visual field, the visual field range is kept through the first dilation positioning device, then the pipe joints at the rear ends of the left wing and the right wing or the first handle and the second handle are controlled oppositely, the side dilation piece gear can be driven to upwarp above the positioning connecting piece gear to move, the two side wings are opened until the required visual field is reached and meshed, and at the moment, the vagina, the cervix and/or an operation can be observed and checked through the visual fields expanded by the upper wing, the lower wing, the left wing and the right wing.

When the ultrahigh frequency electric wave knife operation is needed to be carried out on the vagina or cervix, the generated smoke passes through the openings of the left and/or right side expansion sheets and the upper and/or lower attaching wings, passes through the pipeline of the channel and is discharged by connecting a negative pressure device at the rear end.

After the examination, treatment or operation is finished, the pipe joint and the second handle are kneaded oppositely, the second expansion positioning device meshed with the side expansion piece gear and the positioning sleeve gear can be loosened, the left wing and the right wing are contained in the upper wing and the lower wing, the first expansion positioning device is unlocked, the upper wing and the lower wing are automatically closed and folded, and a doctor can take out the dilator from the vagina.

According to the vaginal dilator, on one hand, because the channels are arranged on the side dilating blades, the upper attaching wings and the lower attaching wings, the whole channel is completely exposed only by opening the channel cover, so that the installation of a lighting device, such as an LED, at the opening of the left and/or right side wing and/or the upper attaching wings and/or the lower attaching wings can be very conveniently and accurately implemented, a power supply line of the lighting device can penetrate through the channel of the whole exposed side wings under the direct vision of an operator, and the channel cover closes the channel after the installation; on the other hand, the length of the side wings, the upper and the lower auxiliary wings is similar to that of the upper and the lower wings and reaches the head parts of the upper and the lower wings of the vaginal dilator, so that the deeper parts of the vagina can be performed under better illumination conditions, and all power supplies, power lines and equipment are arranged in the channel, thereby not only improving the examination and operation conditions, but also being safe and reliable. According to the same principle as the above, due to the design of the channel cover, the vaginal dilator of the invention can be provided with the camera at the channel opening at the front end or the inner side of the fully exposed left and/or right side wing and/or the upper attached wing and/or the lower attached wing, and no matter wired or wireless transmission is adopted, the real-time image of the examination part or the operation part can be provided. The system can meet the requirements of providing real-time images and providing conditions for clinical diagnosis, even remote consultation and teaching in the current medicine.

Due to the ingenious design of the channel cover, on one hand, the channel cover can be opened, and the requirements of operators on accurately, conveniently and quickly installing illumination or shooting under direct vision can be met; and can satisfy the demand of providing simultaneously smoke evacuation, drainage after sealing channel lid and passageway, on the other hand can make this kind of long and crooked flank can realize the drawing of patterns with environmental protection material, degradation material or ordinary plastics preparation, plays a plurality of purposes.

Just because of the arrangement of the instant strip, the disposable vaginal dilator can be destroyed after use and can not be recovered to realize disposable use, which has great significance for the operation vaginal dilator applied to the cervical cancer of the ring electrode and the ring excision of precancerous Lesion (LEEP) and preventing the cross infection of iatrogenic diseases.

The positioning connecting piece is detachably connected with the rear end of the upper wing through a positioning connecting piece shaft pin and is detachably connected with the side expansion piece, so that the tool is very convenient, and a left expansion piece or a right expansion piece can be completely installed according to clinical needs, or a left auxiliary wing and a right auxiliary wing are installed at the same time, or an upper auxiliary wing is additionally installed, or a lower auxiliary wing is additionally installed, or an upper auxiliary wing and a lower auxiliary wing are additionally installed at the same time; in the same way, the four-wing vaginal dilator with the side dilator pieces without the channels is additionally provided with an upper auxiliary wing, or is additionally provided with a lower auxiliary wing, or is additionally provided with the upper and the lower auxiliary wings, or on the contrary, if the positioning connecting piece and the side dilator pieces are disassembled, the vaginal dilator can become an operation type double-wing vaginal dilator, or an upper auxiliary wing type double-wing vaginal dilator, or a lower auxiliary wing type double-wing vaginal dilator, or a double-tube double-wing vaginal dilator, and the vaginal dilator has great elasticity and adaptability.

Obviously, the instant four-wing vaginal dilator overcomes the defects of the prior art, greatly increases and perfects the functions, and not only can the opening angle of the upper wing and the lower wing reach more than 40 DEG! The distance between the left wing and the right wing can reach more than 88 mm!

The instantly-destroyed four-wing vaginal dilator also has the advantages of simple structure, easy manufacture and low cost. Compared with the prior art, the invention has the following beneficial effects:

1. the invention adds a new product gauge for medical instruments of obstetrics and gynecology department, and creates a four-wing vaginal dilator with a brand-new structure by meshing a positioning connecting piece gear and a side dilating piece gear at home and abroad, wherein the four-wing vaginal dilator not only has an operation type but also has an inspection type, and not only has a four-wing double tube, but also has a four-wing three tube and a four-wing four tube, and has the advantages of common type or instant destruction type, complete specification and model, ingenious design, very simple structure, low cost and practicality.

2. Compared with the positioning sleeve in the prior art, the newly designed positioning connecting piece is small and exquisite, has a simple structure, does not need to loose core during production, is economical, is simpler and quicker for workers to install, and is convenient and practical for clinical use.

3. The second handle integrated with the side expansion piece gear is arranged above the side expansion piece gear, the pipe joint or the first handle is arranged at the rear end of the side expansion piece, and the defect that the prior art does not have the second handle is overcome.

4. The detachable connection between the positioning connecting piece and the upper wing and the detachable connection between the positioning connecting piece and the side expansion piece have ingenious design and bring remarkable advantages, and for producing the four-wing expander, firstly, the parts are simplified after being detached, the production is very convenient, the mold cost is greatly saved, and the equipment investment is also reduced; secondly, after the side expansion piece and the positioning connecting piece are disassembled, the single product of the least components is the operation type double-wing vaginal dilator with the upper wing and the lower wing, the four-wing vaginal dilator is formed by installing the positioning connecting piece and the side expansion piece, the disassembly or the assembly is very simple and convenient, different single products which can be independently applied to clinic can be freely assembled, and the molds can be shared between the side expansion piece and the positioning connecting piece from the production angle and the mold investment, so the mold investment is greatly saved.

5. The other structure of the invention only adds a self-destruction strip design on the grab handle, and can be made into an instant four-wing speculum, which is very simple, ingenious and practical, and after the use, the dilator can be destroyed by a doctor once and is clear at a glance, so that the dilator is known to be used by people, thereby playing the purpose of avoiding cross infection of iatrogenic diseases and protecting the health of people.

6. The device has few parts and low cost, can be used for operation and examination, and can be connected with a smoke exhaust pipe only on the pipe joint when smoke is exhausted in the operation, and the smoke exhaust pipe is not required to be connected if smoke is not exhausted, so the operation type can be used for clinical examination besides a special examination type.

The above and other objects and advantages of the vaginal dilator for cervical examination and surgery according to the present invention will be further explained by the following description taken in conjunction with the accompanying drawings and examples, wherein the following drawings take the side dilation piece with the channel as a basic example and are labeled whenever there is no channel.

Drawings

FIG. 1 is a schematic view of example 1 (side expansion panels without channels) in an initial or closed state after use;

FIG. 2 is a schematic view showing the expanded state of example 1 (side expansion piece without channel) with the opening angle of the upper and lower wings being more than 40 °;

FIG. 3 is a schematic view showing the expanded state of example 1 (side expansion piece without channel) with the distance between the left and right wings being larger than 88 mm;

FIG. 4 is a schematic view of the upper expansion plate;

FIG. 5 is a schematic view of the lower expansion plate;

FIG. 6 is a schematic view of a positioning connection;

FIG. 7 is a schematic view of a side expansion sheet (without channels);

FIG. 8 is a schematic side view of the stent;

FIG. 9 is a sectional view of the positioning connection piece connected to the upper wing and the side expansion piece

FIG. 10 is a schematic view of the embodiment 2 in an initial state or a closed state after use;

FIG. 11 is a schematic view showing the expanded state of the embodiment 2, wherein the opening angle of the upper wing and the lower wing is more than 40 degrees;

FIG. 12 is a schematic view showing the expanded state of the embodiment 2, wherein the opening distance between the left wing and the right wing is larger than 88 mm;

FIG. 13 is a schematic view of a lower expansion sheet with an instant strip;

FIG. 14 is a schematic view of the embodiment 3 in an initial state or a closed state after use;

FIG. 15 is a schematic view showing the expanded state of the embodiment 3, wherein the opening angle of the upper wing and the lower wing is more than 40 degrees;

FIG. 16 is a schematic view showing the expanded state of the embodiment 3, wherein the opening distance between the left wing and the right wing is larger than 88 mm;

FIG. 17 is a schematic view of the embodiment 4 in an initial state or a closed state after use;

FIG. 18 is a schematic view showing the expanded state of the embodiment 4, wherein the opening angle of the upper wing and the lower wing is more than 40 degrees;

FIG. 19 is a schematic view showing the expanded state of the embodiment 4, wherein the opening distance between the left wing and the right wing is larger than 88 mm;

FIG. 20 is a schematic view of the structure of the upper attached wing;

FIG. 21 is a schematic view showing the expanded state of the embodiment 5, wherein the opening angle of the upper wing and the lower wing is more than 40 degrees;

FIG. 22 is a schematic view of the embodiment 5 in an initial state or closed state after use;

FIG. 23 is a schematic view showing the expanded states of the left and right wings of example 5;

FIG. 24 is a schematic view of the lower appendage structure;

FIG. 25 is a schematic view of the embodiment 6 in an initial state or in a closed state after use;

FIG. 26 is a schematic view showing the expanded states of the left and right wings of example 6;

FIG. 27 is a schematic view showing the expanded state of the embodiment 6, wherein the opening angle of the upper wing and the lower wing is more than 40 degrees;

FIG. 28 is a schematic view of the embodiment 7 in an initial or closed state after use;

FIG. 29 is a schematic view showing the expanded states of the left and right wings of embodiment 7;

fig. 30 is a schematic view showing the expanded state of the embodiment 7, wherein the opening angle of the upper wing and the lower wing is more than 40 degrees.

Detailed Description

The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. In addition, any methods and materials similar or equivalent to those described herein can be used in the methods of the present invention. The preferred embodiments and materials described herein are intended to be exemplary only.

Example 1

Inspection type four-wing vaginal dilator

Referring first to fig. 1 and 4-5, an examination type four-winged vaginal dilator comprises: an upper expansion piece 01 including an upper wing 01-1, and a pressing handle 01-2 integrated with the upper wing 01-1 and extending downward along the rear end of one side of the upper wing, a lower expansion piece 02, the lower expansion piece 02 including a lower wing 02-1, a grip 02-2 integrated with the lower wing 02-1 and extending downward along the direction of the lower wing 02-1 at approximately right angle thereto, and both sides of the rear ends of the upper wing 01-1 and the lower wing 02-1 are respectively connected by a shaft pin 01-3 and a shaft hole 02-5, so that the upper wing 01-1 and the lower wing 02-1 can be opened and closed by controlling the pressing handle 01-2.

A first expansion fixing device for fixing the opened state of the upper wing 01-1 and the lower wing 02-1, which further comprises a positioning hook 01-7 with more than one shift position under the side pressing handle 01-3 and a positioning buckle 02-8 on the holding handle 02-4 corresponding to the positioning hook 01-7. According to another embodiment of the present invention, the first expansion fixing means comprises a positioning plate (not shown) having an arc-shaped groove with a pin as a rotation center on the pressing handle, and a positioning rod (not shown) having a nut and passing through the arc-shaped groove on the positioning plate on the pressing handle.

Referring to fig. 6, at least one positioning connecting piece 03 is provided in the invention, the positioning connecting piece in the embodiment is provided with a left positioning connecting piece and a right positioning connecting piece, has the same pair structure, is symmetrically arranged, is arranged at the outer side of the rear end of the upper wing 01-1, and is rotatably and detachably connected with a second shaft hole 01-9 at the rear end of the upper wing 01-1 through positioning connecting piece pin shafts 03-21 at two ends; the lower part of the positioning connecting piece is also provided with a positioning connecting piece shaft hole 03-22 capable of receiving the corner shaft pin 04-4 of the side expansion piece, and the top of the positioning connecting piece is also provided with a convex arc-shaped positioning connecting piece gear 03-23; the first handle 04-1 is pulled to drive the side expansion sheet 04 and the positioning connecting piece 03 to rotate in the upper wing second shaft hole 01-9, so that the upper and lower residence positions of the side wing 04-5 are adjusted.

Referring to fig. 7, the present invention at least has one side expansion piece 04, the side expansion piece in this embodiment is a pair of left and right side wings 04-5 with the same structure but arranged symmetrically, the front part is far longer than the rear part, the inner side of the rear part of the side wing has a side expansion piece corner shaft pin 04-4 with a radial inward and backward corner, a side expansion piece gear 04-3 with a radial inward concave arc shape is arranged behind the corner shaft pin 04-4, and is engaged with the convex arc positioning connecting piece gear 03-23 to form a second expansion positioning device, which is used to adjust the expansion size of the left and right wings 04-5 and fix the left and right wings 04-5 at the position where the expansion is needed.

The side expansion sheet 04 is a non-channel side expansion sheet, the structure is simpler, the number of parts is extremely small, the product cost is greatly saved, the function is excellent, one four-wing speculum is provided with only four parts in total (comprising the upper expansion sheet 01, the lower expansion sheet 02, the positioning connecting piece 03 and the side expansion sheet 04), when the clinical requirement is met, the upper, lower, left and/or right wings of the vagina can be effectively expanded, the cervix is completely exposed, and the side expansion sheet 04 is very suitable for non-operative precancerous lesion screening or vaginal wall mucosa prolapse patient examination, sampling, physical therapy and the like.

With continued reference to fig. 1, before clinical use, the upper wing 01-1, the lower wing 02-1, the left wing 04-10 and the right wing 04-10 are all in a closed state, when the clinical use is started, a doctor sends the dilator into the vagina, at the moment, the upper wing 01-1, the lower wing 02-1, the left wing 04-10 and the right wing 04-10 are still in the closed state, and the four-wing dilator enters the vagina of a patient just like a double-wing vaginal dilator, so that fear and pain of the patient are avoided, and safety is fully reflected.

Referring to fig. 2-3, when in clinical use, a doctor presses down the press handle 01-2, the upper wing 01-1 and the lower wing 02-1 are expanded to a required visual field through the matching adjustment of the hook buckle or the screw, the positioning hook 01-7 enters the positioning buckle 02-8 to be meshed and fixed, at the moment, the doctor can determine the most appropriate expansion degree of the left wing and the right wing according to the patient and the disease condition, the left wing 04-10 and the right wing 04-10 are expanded to a required position through the adjustment of the gear, and the doctor starts to check, diagnose and perform the operation, the invention not only can flexibly adjust and position the upper wing and the lower wing through the matching of the positioning hook and the positioning buckle or the matching of the screw and the nut, the upper wing and the lower wing are automatically closed and gradually expanded upwards and downwards, the opening angle can reach more than 40 degrees, but also the left wing and the right wing are meshed through the adjustment of the positioning connecting piece gear and the side expansion piece, the opening distance between the left wing and the right wing can reach more than 88mm, and the expansion size of the upper wing and the lower wing or the expansion size of the left wing and the expansion size of the right wing can be gradually adjusted according to clinical needs, so that the medical operation wing is particularly suitable for the requirements of the visual field and the surgical field required by clinical examination or operation.

With reference to fig. 1, after use, the left and right wings are folded inward between the upper and lower wings, and then the upper and lower wings are folded inward to wrap the left and right wings therein, and the vagina is taken out just like a double-wing vaginal dilator with only the upper and lower wings after closing, thereby avoiding pain of the patient caused by the unreasonable design of the wings exposed outside. Therefore, the invention has skillful and scientific design, furthest expands the visual field and the operative field of doctors and furthest ensures the clinical requirements. The vaginal dilator is characterized in that the upper wing, the lower wing, the left wing and the right wing of the vaginal dilator are expanded outwards, the expansion angle and the expansion distance are safest, effective and most ideal, and the opening distance between the vaginal dilator and the left wing is only 33mm compared with the opening distance between the left wing and the right wing of a four-wing speculum invented and imported by Americans, and the opening distance between the left wing and the right wing of the vaginal dilator is 2.67 times or more than that of products imported by America. The space and the visual field of the whole dilator are enlarged, and the upper wing, the lower wing, the left wing and the right wing are unfolded to the clinical required positions to be positioned, so that the optimum opening degree is satisfied with various examinations or operations of obstetrics and gynecology department.

With continued reference to fig. 1, after the clinical operation is completed, the doctor pinches the first handle 04-1 and the second handle 04-2, the side expansion piece gear 04-3 can be separated from the positioning connecting piece gear 03-23, the side wing 04-5 is folded between the upper wing 01-1 and the lower wing 02-2, then the doctor pushes the pressing handle outwards, the positioning hook slips off from the positioning buckle, the upper wing (01-1) and the lower wing (02-2) are closed, and the doctor takes out the expander.

Example 2

Four-wing vaginal dilator for cervical operation

The structure of the vaginal dilator of this embodiment is the same as the examination type four-wing vaginal dilator of embodiment 1 except that the structure of the vaginal dilator of embodiment 1 is different from the structure of the side dilating blades, so the same parts are not repeated, please refer to fig. 8, the side dilating blades 04 of the four-wing vaginal dilator for cervical operation have a hollow channel, the channel 04-12 is composed of a channel main body 04-11 and a channel cover 04-13 thereon, the inner side, the upper side or the lower side of the front end of the channel main body is provided with at least one opening communicated with the channel 18, and the rear end is a pipe joint.

Referring to fig. 6 and 8-10, in the embodiment, the corner shaft pins 04-18 of the side expansion pieces are connected with the shaft holes 03-22 of the positioning connecting pieces, the shaft pins 03-21 of the positioning connecting pieces, which are positioned inside the shaft holes 03-22 of the positioning connecting pieces, are connected with the second shaft holes 01-9 at the rear ends of the upper wings, and the pipe joints 04-17 are pulled to drive the side expansion pieces 04 and the positioning connecting pieces 03 to rotate in the second shaft holes 01-9 of the upper wings, so that the upper and lower habitation of the side wings 04-10 are adjusted.

According to a preferred embodiment of the invention, the side expansion sheet 04 with the channels 04-12 is particularly suitable for being applied to patients suffering from cervical cancer and cervical cancer pre-lesion and other transvaginal operations, such as ultrahigh frequency electric wave knife operation (also called LEEP knife operation), and has the advantages of wide operation space, large and clear operation field, complete exposure, and capability of immediately removing toxic smoke in the operation and protecting the physical and psychological health of medical staff and patients; on the other hand, the expansion sheet 04 with the channel 04-12 side can be used for inspection and use as long as the pipe joint 04-17 at the rear end is not connected with a negative pressure device, thereby achieving two purposes at one stroke and being very convenient and practical.

According to a preferred embodiment of the present invention, the axial front end of the channel body 04-11 may be closed or opened, and the rear end has an opening, which is adapted to be connected to any clinically necessary conduit (e.g., negative pressure device).

According to a preferred embodiment of the invention, the channel body 04-11 has a groove (not shown) on its periphery for receiving the channel cover 04-13. The channel cover 04-13 is elongated and conforms to the shape of the groove in the channel body 04-11, and when the channel cover 04-13 is inserted into the groove in the channel body 04-11, a conduit is formed, thereby forming a passage consisting of the channel body 04-11, the conduit between the channel cover 04-13 and the channel opening 04-14, and the channel rear end opening. When the channels 04-12 are used for smoke evacuation, smoke enters through the openings 04-14 and is exhausted through the above-mentioned passages and ducts to a negative pressure device (not shown). When the lighting device or the camera device needs to be installed, an operator can open the channel cover 04-13, the LED lamp or the camera and the like can be accurately, quickly and conveniently installed in the opening 04-14 of the channel main body 04-11 under direct vision, and the power supply line or the signal line can be externally connected from the opening at the rear end of the channel main body 04-11 through the channel 04-12.

Please refer to fig. 10 continuously, which is the closed state before clinical use, when entering the vagina and when taking out the vagina after use of the four-wing vaginal dilator for cervical operation, it can be seen that the four-wing dilator for operation enters the vagina of a patient and is taken out from the vagina just like a two-wing vaginal dilator, so that fear and pain of the patient are avoided, the design is very humanized, and the respect to the safety of the human body is fully reflected.

Please refer to fig. 11-12, which are the expansion states during the operation type clinical use, showing that the upper and lower wings are gradually expanded upwards from the closed state, the expansion angle can reach >40 °, the left and right wings are gradually expanded from the closed state to the left and right sides by a left and right distance of >88mm, and the expansion size of the upper and lower wings or the left and right wings can be gradually adjusted according to the clinical requirement, so the cervical operation is very suitable for the clinical cervical operation.

Example 3

Instant-destroyed examination type four-wing vaginal dilator

The structure of the vaginal dilator of this embodiment is the same as the structure of the examination type four-wing vaginal dilator of embodiment 1 except that the handle of the lower dilator of this embodiment has the instant-destroying strip, so the same parts are not repeated, please refer to fig. 13, the handle 02-4 of the lower dilator 02 is provided with the instant-destroying strip 02-10, the front end of the instant-destroying strip 02-10 is connected with the handle 02-4 through a tie 02-11 and the rear end thereof is connected with the handle 02-4 through a material-reducing groove 02-12, the left and right sides thereof are hollow windows 02-13, and a small protrusion 02-14 higher than the plane of the handle 02-4 is arranged right above the instant-destroying strip 02-10. The instant strip has three functions: firstly, after the dilator is used, a doctor only needs to slightly press the small convex protrusions 02-14, namely the tying belts 02-11 at the front ends of the destroying strips 02-10 are immediately broken and destroyed, and the doctor can achieve the purpose of breaking and destroying by applying light force, so the dilator is very practical and clear at a glance, and the dilator is already used by people, thereby achieving the purpose of preventing secondary use. Secondly, the size of the destroyed instantly-destroyed hole of the destroyed instantly-destroyed strip is completely consistent and closely matched with the buckle of the lower attached wing, thereby achieving two purposes; thirdly, the handle is provided with the instant strip 02-10, which does not occupy any space, does not hinder any operation of the expander at all, does not influence any function, has simple structure, practical function and convenient operation, does not increase the mould and the production cost, and can well solve the practical problem.

Referring to fig. 14, the four-wing vaginal dilator for examination of the destructive type is closed before clinical use, when entering the vagina and when taking out the vagina after use, so that the four-wing vaginal dilator can enter and take out of the vagina of a patient just like a two-wing vaginal dilator, and is very humanized in design.

Referring to fig. 15-16, the expansion state of the expansion sheet in clinical use shows that the upper and lower wings begin to expand upwards and downwards gradually at an angle of >40 °, the left and right wings begin to expand left and right gradually at a left-right distance of >88mm, and the expansion size of the upper and lower wings or the left and right wings can be adjusted gradually according to clinical needs, so the expansion sheet is very suitable for vaginal examination needs of cervical cancer precancerous lesions, special patients and the like. And the destroying mark can be destroyed after being used, the destroying mark is clear at a glance, the secondary use can be well prevented, the destroying mark is particularly used for precancerous lesion examination and the like, and the cross infection of iatrogenic diseases is particularly important to be avoided.

Example 4

Four-wing vaginal dilator for instantly-destroying cervical operation

The structure of the vaginal dilator of this embodiment is the same as the structure of the vaginal dilator of embodiment 2 except that the handle of the lower dilator sheet of this embodiment has the instant-destroying strip, and the rest of the structure is the same as the four-wing vaginal dilator of embodiment 2, and the content of the instant-destroying strip on the handle is the same as the instant-destroying strip of embodiment 3, so these two parts are not repeated, please refer to fig. 17, i.e., the closed state of the four-wing vaginal dilator for cervical operation before clinical use, when entering the vagina and when taking out the vagina after use, it can be seen that the volume of the four-wing dilator for operation is the same as that of the two-wing vaginal dilator for entering and taking out from the vagina of the patient, and the design is very humanized; fig. 18-19 show the expansion state of the expansion piece in clinical use, showing that the upper and lower wings begin to expand upwards and downwards gradually from the closed state, the opening angle can reach >40 degrees, the left and right wings begin to expand leftwards and rightwards gradually from the closed state by the left and right wings can reach >88mm, and the expansion size of the upper and lower wings or the left and right wings can be adjusted gradually according to clinical needs, so the expansion piece is very suitable for clinical cervical cancer LEEP operation and the like. And the cervical cancer therapeutic agent can be destroyed after being used, is simple, clear and practical to destroy, is particularly used for cervical cancer patients and the like, and particularly needs and is important for avoiding cross infection of iatrogenic diseases.

Example 5

Upper attached wing type three-tube four-wing vaginal dilator

Compared with the structure of the embodiment 2, except that the embodiment has the upper attaching wings, the structure of the vaginal dilator of the embodiment is completely the same as the four-wing vaginal dilator for cervical surgery of the embodiment 2, so the same parts are not repeated, please refer to fig. 20, wherein the upper attaching wings 05 are provided with a channel 05-2, the channel is composed of a main body 05-1 and a channel cover 05-3 thereon, and the edge of the main body can be provided with a groove 05-6 for embedding the channel cover and is closely matched with the channel cover; at least one opening 05-4 communicated with the channel 05-2 is arranged on two sides of the upper attached wing main body and/or the channel cover, the channel cover of the embodiment is provided with three openings 05-4, an upper attached wing hanging buckle 05-8 is arranged in the front of the rear part of the upper attached wing close to the top, the upper attached wing hanging buckle 05-8 is buckled into a limiting groove 01-10 in the middle of the rear end of the upper wing for detachable and rotatable fixation, and the rear end of the channel is an upper attached wing pipe joint.

Referring to fig. 21, in the closed state before clinical use, when entering the vagina and when taking out the vagina after use, the length of the front end of the upper attached wing does not exceed the front edge of the upper wing, the width is 10mm, and the thickness is 6mm, so that the small and exquisite upper attached wing type three-tube four-wing vaginal dilator enters the vagina of a patient and is taken out of the vagina like a double-wing vaginal dilator, and the vaginal dilator is very humanized in design; fig. 22-23 show the expansion state of the expansion piece in clinical use, showing that the upper and lower wings start to expand upwards and downwards gradually from the closed state, the opening angle can reach >40 degrees, the left and right wings start to expand leftwards and rightwards gradually from the closed state, the left and right spacing can reach >88mm (not shown), and the expansion size of the upper and lower wings or the left and right wings can be adjusted gradually according to clinical needs, so the expansion piece is very suitable for clinical cervical cancer LEEP and other surgeries.

The upper attached wing pipe joint is pulled to enable the upper attached wing to rotate to the left edge of the upper wing or rotate to the right edge of the upper wing, and when the upper attached wing is used for lighting, shooting or exhausting smoke, the head end of the upper attached wing can rotate to bring a great help effect to clinic. If the smoke exhaust device is used for smoke exhaust, the three pipes are arranged together, and the smoke exhaust is fast and good. Or the upper attached wing is used for lighting, the left and right side wings are used for smoke exhaust, and the like, which are good choices.

Example 6

Lower attached wing type three-tube four-wing vaginal dilator

Compared with the structure of the embodiment 2, except that the embodiment has the lower attaching wings, the structure of the vaginal dilator of the embodiment is completely the same as the four-wing vaginal dilator for cervical surgery of the embodiment 2, so the same parts are not repeated, please refer to fig. 24, wherein the lower attaching wings 06 are provided with channels 06-9, the channels 06-9 are formed by a main body 06-7 and grooves 06-3 at the edges thereof for closely matching covers 06-8 thereon and quickly butting the clamping holes on the main body through clamping nails 06-9 of the channel covers; at least one main body opening 06-6 or channel cover opening 06-7 communicated with the channel 06-9 is arranged on the two sides of the lower attached wing main body or the channel cover, in the embodiment, one opening 06-6 is respectively arranged on the two sides of the lower attached wing main body and five openings 06-7 are arranged on the channel cover, a lower attached wing buckle 06-11 is arranged below the lower attached wing close to the tail part, the lower attached wing buckle 05-8 is pressed into the instant-destroying hole on the grab handle to be fixed, and the rear end of the lower attached wing is a pipe joint 06-12.

Referring to fig. 25, in the closed state before clinical use, when the vagina is entered and after the vagina is taken out, the length of the front end of the lower attached wing does not exceed the front edge of the lower wing, the width is 8mm, the thickness is 5mm, and the smaller and exquisite lower attached wing type three-tube four-wing vaginal dilator enters and is taken out of the vagina of a patient just like a double-wing vaginal dilator, so the vaginal dilator is designed in a humanized manner; 26-27, it is the expansion state of this expansion piece when clinical use, show that upper and lower both wings are closed and begin to expand upwards, down gradually, its opening angle can reach >40 °, left and right both wings close and begin left and right both wings to expand left and right gradually left and right interval can reach >88mm (not shown), and no matter be upper and lower both wings or left and right both wings expansion size can be adjusted step by step according to the clinical needs, therefore is very suitable for operation use such as clinical cervical carcinoma LEEP, etc..

Example 7

Four-tube and four-wing operation type vaginal dilator

Compared with the structure of the embodiment 2, except that the embodiment has the upper and lower attached wings, the structure of the vaginal dilator of the embodiment is completely the same as the four-wing vaginal dilator for cervical surgery of the embodiment 2, the upper attached wings are the same as the embodiment 5, and the lower attached wings are the same as the embodiment 6, so the same parts are not repeated, please refer to fig. 28, the closed state before clinical use, when entering the vagina and when taking out the vagina after use, although the upper and lower attached wings are arranged on the inner surfaces of the upper and lower wings, the vaginal dilator still enters and is taken out of the vagina of a patient as if the volume of the two-wing vaginal dilator is the same, which needs a very humanized design; referring to fig. 29-30, the opening angle can reach >40 °, the left and right wings can gradually expand from left to right after self-closing, and the left and right spacing can reach >88mm (not shown), and the expansion size of the upper and lower wings or the left and right wings can be gradually adjusted according to clinical needs, so the cervical cancer LEEP surgical instrument is very suitable for clinical cervical cancer LEEP and other surgeries. The vaginal dilator with the four tubes and the four wings can simultaneously realize multiple functions of illumination, image pickup, water drainage, smoke exhaust and the like, the use function is expanded, conditions are created for freely matching the multiple functions of the vaginal dilator no matter the vaginal dilator is provided with the three tubes and the four wings or the four tubes and the four wings, the multiple functions are realized, and new varieties and new types are created.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims (10)

1. A kind of cervix uteri is examined and operated and used the dilator of vagina, including one expands slice and one and expands slice down, it includes a upper wing to expand slice, and one and upper wing are integrative, press the handle that the obtuse angle direction downwardly extends along one side of upper wing, expand slice include one lower wing down, and one and lower wing are integrative, become close to the downward grab handle of the right angle direction along one side of lower wing, the both sides of the rear end of upper wing and lower wing are connected with shaft hole through the pivot, press handle and grab handle and pass the first expansion locating device to position and hold in the upper, lower attached wing of the inside surface of upper, lower wing separately, characterized by that: the handle is provided with an instant-destroying strip, and the handle is provided with a first expansion positioning device which is meshed with the side expansion sheet;

the inner side of the lower part of the positioning connecting piece is provided with a positioning connecting piece shaft pin extending inwards in the radial direction and is rotatably and detachably connected with a second shaft hole at the rear end of the upper wing, the outer side of the positioning connecting piece shaft pin is also provided with a positioning connecting piece shaft hole capable of receiving the side expansion piece corner shaft pin and rotatably and detachably connected, and the top of the positioning connecting piece is also provided with a positioning connecting piece gear meshed with the side expansion piece gear;

the front inner side of the gear is provided with a side expansion piece corner shaft pin which extends inwards in the radial direction and turns backwards, and the front part of the corner shaft pin is a side wing;

the pipe joint or the first handle and the second handle are kneaded oppositely to drive the side expansion piece gear to upwarp above the positioning connecting piece gear so as to enable the left wing and the right wing to be horizontally opened outwards and retracted inwards between the upper wing and the lower wing.

2. The cervical examination and surgical vaginal dilator of claim 1, wherein the side expansion piece gear has one end fixedly connected to the side wing and the other end being a free end to which the second handle is attached.

3. The cervical dilator for examination and operation of claim 1, wherein the corner shaft pins of the side expansion pieces are connected through the shaft holes of the positioning connecting pieces, and the shaft pins of the positioning connecting pieces are connected with the second shaft holes at the rear ends of the upper wings to rotate, and the pipe joint or the first handle is pulled to drive the side expansion pieces together with the positioning connecting pieces to rotate in the second shaft holes of the upper wings, so as to adjust the upper and lower dwelling positions of the side wings.

4. The cervical examination and surgical vaginal dilator of claim 1, wherein the upper dilation sheet comprises: the upper wing and the pressing handle are integrated with the upper wing and extend backwards along the rear end of one side of the upper wing, a shaft pin is arranged between the upper wing and the pressing handle, and a second shaft hole capable of receiving the shaft pin of the positioning connecting piece is arranged in front of the shaft pin;

the lower expansion sheet comprises: the lower wing and the grab handle which is integrated with the lower wing and extends downwards from the rear end of the lower wing, and a shaft hole is arranged between the lower wing and the grab handle.

5. The vaginal dilator for cervix examination and operation according to claim 1, wherein the instant strip is connected with the handle through a lacing at the front end and a material reducing groove at the rear end respectively, the left and right sides of the instant strip are hollow windows, a small protrusion higher than the plane of the handle is arranged above the center of the instant strip, the position and the size of the instant strip are matched with the lower attached wing buckle, the lower attached wing buckle is pressed into the instant strip, the instant strip is immediately broken into an instant hole, and the instant hole is closely matched and fixed with the lower attached wing buckle.

6. The cervical dilator for examination and operation of claim 1 and 5, wherein the lower attachment wing has a channel, the channel is composed of a channel body and a channel cover closely matched with the channel body, the edge of the channel body has a groove for embedding the channel cover, the channel body is provided with at least more than one opening respectively under the front end and at the left and right sides of the channel body, the channel cover is provided with at least one opening facing the vagina, a lower attachment wing buckle is arranged under the lower attachment wing close to the tail part, the lower attachment wing buckle is pressed into the instant-destruction hole on the handle to be fixed, and the rear end of the lower attachment wing is a lower attachment wing pipe joint.

7. The cervical examination and surgical vaginal dilator of claim 1, wherein the upper appendage has a channel, the channel is composed of a channel body and a channel cover closely matched with the channel body, the edge of the channel body is provided with a groove for embedding the channel cover, the channel cover is provided with at least one opening facing the vagina, the rear end of the channel is provided with an upper appendage connector,

an upper attached wing hook is arranged in front of the rear part of the upper attached wing close to the top end, the upper attached wing hook is buckled into a limiting groove in the middle of the rear end of the upper wing to be detachable and rotatably fixed, and the upper attached wing can rotate to the left edge of the upper wing or rotate to the right edge of the upper wing by stirring the pipe joint of the upper attached wing.

8. The cervical dilator for examination and operation of claim 1, wherein the first dilation positioning means comprises a positioning hook and a positioning buckle, the positioning hook has at least one or more than one positioning hook, and the positioning hook and the positioning buckle are interchangeable in position, and when the positioning hook and the positioning buckle are engaged and expanded to the maximum gear, the upper and lower wings can be expanded by an angle >40 °.

9. The cervical dilator for examination and operation of claim 1, wherein the first dilating and positioning means includes a positioning plate having an arc-shaped groove on the handle with a pin shaft connecting the upper and lower wings as a rotation center, and a screw rod having a nut and passing through the arc-shaped groove on the positioning plate on the handle, so that the upper and lower wings can be expanded by an angle of >40 ° when the nut and the screw rod are screwed and dilated to a maximum position.

10. The cervical dilator for examination and operation of claim 1, wherein the shaft pins, the positioning connecting piece shaft pins and the side expansion piece corner shaft pins have two large ends, a small middle part, a solid middle and lower part and an open piece at the middle and upper part, the edge diameter of the open piece is larger than the diameter of the open piece, and the whole body is dumbbell-like.

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