CN111990962A - Instant-destroyed four-wing vaginal dilator - Google Patents

Abstract

The utility model provides an instant four wings vaginal dilator, including one go up the expansion piece and one expand the piece down, go up the expansion piece and include an upper wing, and one with the upper wing is integrative, become the handle that the obtuse angle direction downwardly extending along upper wing one side with it, lower expansion piece includes a lower wing, and one with the lower wing is integrative, become along lower wing one side with it and be close to the grab handle of right angle direction downwardly extending, the both sides of upper wing and lower wing rear end are connected through pivot and shaft hole, press handle and grab handle accessible expansion positioner location, its characterized in that: the device also comprises a first expansion positioning device consisting of a spiral expansion positioning instant destruction device and a second expansion positioning device consisting of a positioning connecting piece and a side expansion sheet which are engaged. The invention has simple structure, simple and convenient operation, easy manufacture, economy, practicality, safe and effective use.

Description

Instant-destroyed four-wing vaginal dilator

Technical Field

The invention relates to a vaginal dilator of a medical instrument of an obstetrics and gynecology department, in particular to an instant-destroyed four-wing vaginal dilator.

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 people in China, such as stars and forest silence, the Chinese patent of invention is granted with the authorization number of ZL201010227012.X, the upper attached wing and the lower attached wing which are composed of channels and channel covers 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 rapidly removed at the position nearest to the operation in the LEEP operation is solved, the aim of protecting the health of medical staff and patients and relieving the pollution of an operating room is achieved, and the functions of illumination, camera shooting and the like can.

Both patents we have filed for US patents and european patents together and have been granted by the US patent office, US 8,876,711B 2EP 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 distance of the left wing and the right wing is more than 88mm, and the vaginal dilator can be folded between the upper wing and the lower wing, which is a long-standing difficult problem and is finally solved by the Chinese, so that the perfect structure is realized.

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 four-wing vaginal dilator which can overcome the defects of the prior art and has a novel structure.

In order to achieve the above object, the present invention provides an instant four-wing vaginal dilator, comprising an upper dilator and a lower dilator, wherein the upper dilator comprises an upper wing and a pressing handle integrated with the upper wing and extending downward along a side of the upper wing at an obtuse angle, the lower dilator comprises a lower wing and a handle integrated with the lower wing and extending downward along a side of the lower wing at 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, and the pressing handle and the handle can be engaged with each other through a first dilating positioning device, the instant four-wing vaginal dilator is characterized in that: the device also comprises a first expansion positioning device consisting of a spiral expansion positioning instant destruction device and a second expansion positioning device consisting of a positioning connecting piece gear and a side expansion piece gear which are meshed.

The inner side of the lower part of at least one positioning connecting piece is provided with a positioning connecting piece shaft pin which extends 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 which can receive the side expansion piece corner shaft pin and is rotatably and detachably connected, and the top of the positioning connecting piece is also provided with a positioning connecting piece gear which is meshed with the side expansion piece gear;

the side expansion piece is provided with at least one channel consisting of a channel main body and a channel cover on the channel main body, the inner side of the front end of the side expansion piece is provided with an opening communicated with the channel, the rear end of the side expansion piece is provided with a pipe joint, the inner side in front of the pipe joint is provided with a side expansion piece gear which extends inwards in the radial direction and is provided with a second handle, the inner side in front 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.

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 pipe joint and the second handle are kneaded in opposite directions to drive the free end of the side expansion piece gear to tilt up and move above the positioning connecting piece gear, so that the two side wings are expanded to a required visual field to be meshed.

Preferably, the inner diameter distance of the maximum gear of the left and right side wings which are horizontally expanded outwards can reach more than 88mm and are folded inwards between the upper wing and the lower wing.

Preferably, the edge of the channel main body is provided with a groove edge for embedding the channel cover, the groove edge is provided with a plurality of small convex protrusions which are matched with the small concave holes on the inner surface of the channel cover in a matching way, and the positions of the small convex protrusions and the small concave holes can be interchanged.

Preferably, the corner shaft pin of the side expansion piece is connected with the shaft hole of the positioning connecting piece, the shaft pin of the positioning connecting piece positioned on the inner side of the shaft hole of the positioning connecting piece is connected with the second shaft hole at the rear end of the upper wing, and the pipe joint is pulled so as to drive the side expansion piece and the positioning connecting piece to rotate in the second shaft hole of the upper wing, thereby adjusting the upper and lower placement of the side wing.

Preferably, the upper expansion piece 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 pressing handle hole is arranged on the pressing handle, a shaft pin is arranged between the upper wing and the pressing handle, and a second shaft hole capable of receiving a second shaft pin is arranged in front of the shaft pin;

preferably, the lower expansion piece comprises: the lower wing and a grab handle which is integrated with the lower wing and extends downwards from the rear end of the lower wing, a shaft hole is arranged between the lower wing and the pressing handle, a grab handle side hole and an inclined pad are arranged on the grab handle, and the inclined pad is arranged at the tail end of the grab handle side hole.

Preferably, the axle pin on the upper expansion piece and the axle hole on the lower expansion piece can be interchanged.

Preferably, the side hole of the grab handle is designed in a double-layer mode, the bottom layer is larger than the upper layer, the shape of the bottom layer is consistent with that of the positioning seat, and the shape of the upper layer is not limited.

Preferably, the first expansion positioning device is a spiral positioning and instant destroying device and comprises a positioning seat arranged on a side hole of the grab handle and an inclined pad, the self-destroying strip and the screw rod are arranged on the positioning seat in front and back, the lower part of the screw rod is provided with a screw rod front dome capable of placing the self-destroying strip, the screw rod is provided with a handle pressing hole and is screwed with the screw cap for positioning, and at least one of the self-destroying strip and the screw rod has elasticity.

Preferably, the top end of the self-destruction strip extends forwards to form a crown, the crown is shaped like a 7 in the transverse direction, and the crown is buckled with a convex protrusion positioned in front of the side hole of the handle.

Preferably, when the screw rod and the screw cap of the first expansion positioning and instant destruction device are screwed and expanded to the maximum gear, the opening angle of the upper wing and the lower wing reaches more than 40 degrees, and the positions of the positioning hook and the positioning buckle can be interchanged.

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, and the edge diameter of the split is larger than that of the split, so that the whole structure is similar to a dumbbell shape.

When the vaginal dilator adopting the scheme is used, the left wing and the right wing are closed between the upper wing and the lower wing, the vaginal dilator is put 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 by the spiral expansion positioning instant destroying device, then the pipe joints and the second handle at the rear ends of the left wing and the right wing are controlled oppositely, the free end of the side expansion 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 meshed, and at the moment, the vagina, the cervix and/or an operation can be observed and checked through the expanded visual fields of the upper wing, the lower wing, the left wing and the right wing.

After the examination, treatment or operation is finished, the pipe joint and the second handle are kneaded in opposite directions, the second expansion positioning device of the meshing side expansion sheet 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 spiral expansion positioning device is loosened, the self-destruction strip is broken at the moment, the positioning seat is slipped off, the screw rod is dislocated, the upper wing and the lower wing are automatically closed and folded, and the doctor can take out the dilator from the vagina.

The side wings can be arranged into a left side wing and a right side wing, and a left side wing or a right side wing or a left side wing and a right side wing can be installed simultaneously according to clinical needs.

The vaginal dilator according to the invention provides channels on the side wings, which makes it possible to achieve different requirements of use.

When the vagina or cervix is required to be subjected to ultrahigh frequency electric wave knife operation, the generated smoke passes through the openings at the inner sides of the left and/or right side wings, passes through the pipeline of the channel and is discharged by connecting a negative pressure device at the rear end.

The prior art vaginal dilator illuminating devices are far from the operation site, and therefore, the illuminating device does not well illuminate the examination site and the operation site with deep vagina. According to the vaginal dilator, on one hand, the channel is designed on the side wings, so that the whole channel is fully exposed only by opening the channel cover, so that the installation of the lighting device, such as an LED, at the opening at the inner side of the left and/or right side wing can be very conveniently and accurately implemented, the power supply wire of the vaginal dilator can pass through the channel of the fully exposed side wings under the direct vision of an operator to pass through a power supply, and the channel cover is closed after the vaginal dilator is installed; on the other hand, the length of the side wings is similar to that of the upper and lower wings and reaches the heads of the upper and lower wings of the vaginal dilator, so that the deeper part of the vagina can be illuminated better, 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 present invention can install the camera at the front end of the fully exposed left and/or right side wings or the inner channel opening, and no matter wired or wireless transmission is adopted, it is possible to provide the image of the examination part or the operation part in real time. 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 meet the requirement of providing smoke exhaust simultaneously after sealing the channel cover and the channel, thereby achieving multiple purposes.

The ingenious design of the channel cover enables the long and bent side wing to be made of common plastics or degradable materials to realize demoulding, so that the side wing can be used for one-time use and can be destroyed after use, and the channel cover has great significance for preventing cross infection of iatrogenic diseases when being applied to vaginal dilators such as cervical cancer LEEP operation and the like.

The positioning connecting piece is detachably connected with the rear end of the upper wing through the positioning connecting piece shaft pin and is detachably connected with the side expansion piece, so that the tool is very convenient to assemble, a left expansion piece or a right expansion piece or a left expansion piece and a right expansion piece can be completely installed according to clinical needs, and the positioning connecting piece has great elasticity and adaptability.

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, creates a second expansion positioning device with a brand new structure formed by a positioning connecting piece gear and a side expansion piece gear and a four-wing vaginal dilator with a first expansion positioning device with a brand new structure formed by a spiral instant destruction device at home and abroad, and has the advantages of ingenious design, very simple structure, low price and high practicability.

2. The invention has no positioning sleeve component, and the newly designed positioning connecting piece is smaller and more exquisite than the positioning sleeve of the prior art, the mould of the positioning connecting piece structure is simpler, core pulling is not needed during production, the manufacturing cost is low, the installation of workers is simpler and faster, the clinical use operation is simpler, and the positioning connecting piece is more convenient and practical.

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

4. The first expansion positioning device is designed into a spiral expansion positioning and instant destruction device, the whole clinical operation process is completely consistent with that of a non-instant destruction dilator, when the dilator is taken out after the operation is finished, the push handle or the screw cap is pushed forward slightly, instant destruction and non-restorability are realized simultaneously, and cross infection of iatrogenic diseases is avoided. And when the upper wing and the lower wing are expanded, the opening angles of the two wings reach more than 40 degrees, which is an important clinical technical index of the vaginal dilator and relates to the safety and effective functions of medical instruments.

5. 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 great benefits, in terms of production, firstly, after the parts are detached, the parts become simple, the production is very convenient, the cost of a die is greatly saved, and the equipment investment is also reduced; secondly, after the side expansion piece and the positioning connecting piece are disassembled, the complete double-wing vaginal dilator with the upper wing and the lower wing can be independently applied to clinic and mold sharing, so that the early investment of the mold is greatly saved.

6. The device has few parts and low cost, can be used for operation and inspection, does not need to change a mould, only needs to be connected with the negative pressure pipe on the pipe joint when the operation needs smoke exhaust, drainage and other purposes, and can be used for operation and inspection if the negative pressure pipe does not need to be connected without smoke exhaust and drainage.

7. Besides the purposes, the multifunctional LED lamp can also be used for installing devices such as illumination, camera shooting and the like, and has multiple functions and high practical value.

The above and other objects and advantages of the instant four-wing vaginal dilator according to the present invention will be further illustrated by the following description taken in conjunction with the accompanying drawings and examples, which are not to be construed as limiting the invention.

Drawings

FIG. 1 is a schematic view of the present dilator in a closed state, when not in use and entering the vagina;

FIG. 2 is an enlarged schematic view of the circle in FIG. 1;

FIG. 3 is a schematic view showing the angle of the upper and lower wings of the dilator in the expanded state being greater than 40 °;

FIG. 4 is a schematic view of the expanded state of FIG. 3 showing a left and right wing span of >88 mm;

FIG. 5 is an enlarged schematic view of the circle in FIGS. 3-4;

FIG. 6 is a schematic view of the present stent in a closed position after use and destruction;

FIG. 7 is an enlarged schematic view of the circle in FIG. 6;

FIG. 8 is a schematic view of the structure of the upper blade of the present stent;

FIG. 9 is a schematic view of the structure of the lower blade of the present stent;

FIG. 10 is a schematic view of the left and right positioning connectors of the present dilator;

FIG. 11 is a schematic view of the left and right stent pieces of the stent;

fig. 12 is a structural schematic view of the spiral positioning instant-destroying device of the dilator.

Detailed Description

An embodiment of the instant four-wing vaginal dilator of the present invention is described below with reference to the drawings. Referring first to fig. 1-9, the ruined four-wing vaginal dilator comprises: an upper expansion piece 01, the upper expansion piece 01 comprises an upper wing 01-1 and a pressing handle 01-2 which is integrated with the upper wing 01-1 and extends downwards along the rear end of one side of the upper wing, shaft pins 01-3 are arranged on the left and right sides of the inner surface of the rear end of the upper wing, a second shaft hole 01-4 is further arranged in front of the shaft pins 01-3, the second shaft hole 01-4 is used for rotatably connecting a positioning connecting piece shaft pin 03-21, and a pressing handle hole 01-8 is further arranged on the pressing handle 01-2.

The lower expansion piece 02 comprises a lower wing 02-1 and a handle 02-2 which is integrated with the lower wing 02-1 and extends downwards along the direction which is approximately perpendicular to the lower wing 02-1, a handle side hole 02-8, a convex protrusion 02-7 and an inclined pad 02-9 are arranged on the handle, the inclined pad 02-9 is arranged at the rear end of the bottom layer of the handle side hole 02-8, a shaft hole 02-3 is arranged between the lower wing and the handle, the convex protrusion 02-7 is arranged in front of the side handle hole 02-8, and two sides of the rear end of the upper wing 01-1 and the rear end of the lower wing 02-1 are respectively connected by a pin shaft, so that the upper wing 01-1 and the lower wing 02-1 can be opened and closed by controlling the handle 01-2.

Referring to fig. 1-5 and 12, a first expansion positioning device for fixing the opened state of the upper wing 01-1 and the lower wing 02-1 is a spiral expansion positioning destroying device 09 which skillfully combines the positioning function during use and the destroying function after use, the device further comprises a positioning seat 09-12 which is arranged in a side hole 02-8 of the grab handle and an inclined pad 02-9, the positioning seat 09-12 extends upwards to form a screw 09-14 and a self-destruction strip 09-16 which is arranged in front of the screw 09-14, and the self-destruction strip 09-16 is arranged at the front dome 09-13 of the screw, the screw 09-14 with threads passes through the handle hole 01-8 and the screw cap 09-15 to be screwed together, and the doctor can expand, adjust and fix according to the size of the inspected field or the operation range.

Referring to fig. 1-7 and 12, the self-destructive strip 09-16 is a short, small and slightly forward inclined strip, the front surface of the strip is tightly attached to the front wall of the handle side hole 02-8, the rear surface of the strip is provided with a screw front dome 09-13, and the positioning seat 09-12 is more firmly fixed in the handle side hole 02-8 and the inclined pad 02-9 due to the front-back tension of the self-destructive strip 09-16 and the screw 09-14. When a doctor pushes the push handle 09-18 or the screw cap 09-15 down after use, the self-destruction strip 09-16 is subjected to the force of the push handle 09-18 or the screw cap 09-15 and the screw 09-14, the abdomen of the self-destruction strip 09-16 is instantly broken due to the extrusion of the front wall of the side hole 02-8 of the handle, and the self-destruction strip 09-16 is instantly broken due to the impact force generated when the positioning seat 09-12 slips through the lever action of the positioning seat 09-12 and the inclined cushion 02-9 of the screw 09-14, so that the fracture of the self-destruction strip 09-16 is almost performed simultaneously with the slipping of the positioning seat 09-12 from the side hole 02-8 of the handle and the inclined cushion 02-9, and due to the slipping of the positioning seat 09-12 and the dislocation of the screw 09-14, the screw 09-14 cannot be screwed, expanded and positioned with the screw cap 09-15, all this happens and is done in a moment, and the broken part of the self-destructive strip 09-16 is almost at the root, and is shaped like a 'fracture', so that even if the self-destructive strip 09-16 is broken, the self-destructive strip still is connected with the positioning seat 09-12 and cannot fall down independently; after the screw rods 09-14 are out of position, the screw rods 09-14 are still connected with the positioning seats 09-12 and cannot fall down independently, so that the dilator is an integral dilator when a doctor takes out the dilator, just like a disposable vaginal dilator without an instant destroying device, and therefore, the operation is simple, labor-saving, convenient, practical, safe and effective.

With continuing reference to fig. 1-7 and 12, according to another preferred embodiment of the present invention, the head end of the self-destructive strip 09-16 extends forward to form a crown 09-17, so that the self-destructive strip 09-16 with the crown 09-17 is shaped like a "7" and is correspondingly engaged with the protrusion 02-7 located in front of the handle side hole 02-8, the self-destructive strip 09-16 with the crown 09-17 is easily broken and self-destructed when being pressed by the front wall of the handle side hole 02-8, and when the self-destructive strip 09-16 with the crown 09-17 is broken by pressing, the "broken" is still at the root, so that the operation is also time-saving, labor-saving, simple, convenient, safe and effective.

Referring to fig. 8-9 and 12, the spiral expansion positioning and instant destruction device is designed on one side of the press handle 01-2 and the holding handle 02-2, so that the visual field and the space of the whole dilator are enlarged, the upper wing and the lower wing are expanded to the clinically required positions for positioning, when the clinical requirement is continued to be expanded, the expansion angle of the upper wing and the lower wing can reach more than 40 degrees, various operations and various examinations of obstetrics and gynecology are completely met, because the vagina can be fully expanded by more than 40 degrees, the cervix is exposed, the vaginal orifice is effectively protected from being excessively expanded, the clinical diagnosis and treatment and the operation are facilitated, and the operation is safe and effective.

With continued reference to fig. 1-2, when the upper wing 01-1 and the lower wing 02-1 and the left and right wings 04-10 are in the closed state before clinical use, the doctor puts the dilator into the vagina when the clinical use starts, and the upper wing 01-1 and the lower wing 02-1 and the left and right wings 04-10 are still in the closed state, and at this time, the self-destruction strip 09-16 and the crown 09-17 are all seen to be intact.

With continued reference to fig. 3-5, 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, the screw cap 09-15 rotates to enter the screw 09-14 to be fixed, the left wing 04-10 and the right wing 04-10 are also expanded to a required position, and the doctor starts to examine, diagnose or perform an operation, wherein the self-destruction strip 09-16 and the crown 09-17 are still intact.

Referring to fig. 6-7, when the clinical operation is finished, the doctor can knead the pipe joints 04-17 and the second wrenches 04-16, the side expansion piece gears 04-15 can be separated from the positioning connecting piece gears 03-23, and the side wings 04-10 can be retracted to the space between the upper wings and the lower wings; the doctor moves the screw cap 09-15 back to the upper wing and the lower wing to be closed, then pushes the push handle 09-18 or the screw cap 09-15 down, and the self-destruction strip 09-16 or the crown 09-17 is extruded by the front wall which is slightly protruded backwards from the middle part of the upper layer of the side hole 02-8 of the handle due to the push force and the elastic acting force of the screw 09-14 along with the push handle 09-18 or the screw cap 09-15, and then the self-destruction strip 09-16 or the crown 09-17 can be immediately fractured and can not be restored.

Referring to fig. 9, according to a preferred embodiment of the present invention, a double-layer handle side hole 02-8 is formed at the outer side of the middle portion of the handle 02-2 corresponding to the handle hole 01-8, the bottom layer is larger than the upper layer, and the rear end of the hole bottom layer is provided with a slanted pad 02-9, which is designed with great attention to the details, so that the bottom layer has a larger space than the upper layer and the positioning seat 09-12 is more stably installed therein.

With continued reference to fig. 9, according to another embodiment of the present invention, the bottom layer of the handle side hole 02-8 is designed to be a jewel shape, and the positioning seat 09-12 of the jewel shape matching with the bottom layer is more firmly installed in the bottom layer of the handle side hole 02-8, which is beautiful and practical, and also ensures safe and reliable clinical use, the design of the upper and lower layers can reduce the overall thickness of the positioning seat 09-12, and the design of the positioning seat 09-12 being thick at the front and thin at the back, so that the positioning seat 09-12 can more easily slip from the handle side hole 02-8 and the inclined pad 02-9 and the screw 09-13 can not be screwed with the positioning buckle 01-9 in a tight fit manner under the action of the screw 09-13 transmitted by the screw 09-13 and the lever of the inclined pad 02-9 under the action of the forward pushing force of the pushing handle 09-18, therefore, the expansion and positioning functions are lost, the three components are self-destroyed and cannot be recovered at the same time, so that the purpose of avoiding cross infection of iatrogenic diseases by using the medical disposable medical.

According to one embodiment of the invention, at least one positioning connection 03 is provided. In the present embodiment, the positioning members are arranged in two left and right directions, and referring to fig. 10, the left and right positioning members are a pair of members having the same structure but are symmetrically arranged. The positioning connecting piece 03 is arranged on the outer side of the rear end of the upper wing 01-1 and is rotatably and detachably connected with a second shaft hole 01-4 at the rear end of the upper wing 01-1 through positioning connecting piece pin shafts 03-21 at two ends, a positioning connecting piece shaft hole 03-22 which can receive a side expansion piece corner shaft pin 04-18 and can be rotatably and detachably arranged on the outer side of the positioning connecting piece pin shaft 03-21, and a positioning connecting piece gear 03-23 which is meshed with the side expansion piece gear is arranged at the top of the positioning connecting piece.

According to an embodiment of the present invention, the present invention at least comprises one side expansion piece 04 (also called left and right expansion pieces or left and right expansion pieces), in this embodiment, the side expansion piece is configured as a left and right expansion piece, please refer to fig. 11, the left and right expansion pieces are a pair of expansion pieces with the same structure but arranged symmetrically; the side expansion piece 04 is provided with a left wing 04-10 and a right wing 04-10 (also called as a left wing or a right wing) with the front part far longer than the rear part, the side expansion piece 04 is provided with at least one channel 04-12 consisting of a channel main body 04-11 and a channel cover 04-13 thereon, the inner side of the front end of the side expansion piece 04 is provided with an opening 04-14 communicated with the channel 04-12, the rear end of the side expansion piece 04 is provided with a pipe joint 04-17, the inner side of the front part of the pipe joint 04-17 is provided with a side expansion piece gear 04-15 which extends radially inwards and is provided with a second handle 04-16, the inner side of the front part of the gear is provided with a side expansion piece corner shaft pin 04-18 which extends radially inwards and has a corner backwards.

Referring to fig. 3-4, when the invention is expanded, the upper wing 01-1 and the lower wing 02-1 are expanded to the maximum gear by the positioning hook 09-14 and the positioning buckle 01-9, the opening angle of the upper wing and the lower wing is more than 40 degrees, the left wing 04-10 and the right wing 04-10 are kneaded oppositely by the pipe joint 04-17 and the second handle 04-16 to drive the side expansion piece gear 04-15 to be upwarped above the positioning connecting piece gear 03-23 to move to the maximum gear, the left wing 01-1 and the right wing 02-1 are engaged to enable the distance between the horizontal opening of the left wing 01-1 and the horizontal opening of the right wing 02-1 to be more than 88mm, and the expansion size of the upper wing 01-1 and the lower wing 02-1 or the left wing 04-10 and the right wing 04-10 can be adjusted according to clinical requirements, which is suitable for cervical cancer examination and vaginal examination of patients with prolapse of mucosa, the cervical dilator is also suitable for cervical surgeries such as cervical cancer, precancerous lesions and the like, the ingenious and scientific design ensures the clinical requirements to the maximum extent, expands the visual field and the surgical range of doctors to the maximum extent, avoids the pain of patients to the maximum extent, and has simple structure, convenient operation, safety and effectiveness.

According to another embodiment of the present invention, the edge of the channel body 04-11 has a groove edge (not shown) for inserting the channel cover 04-13, the groove edge is provided with a plurality of small protrusions (not shown) matching with the small concave holes (not shown) on the inner surface of the channel cover 04-13, and the positions of the small protrusions and the small concave holes can be interchanged.

With continued reference to fig. 10-11, in this 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 located inside the shaft holes 03-22 of the positioning connecting pieces are connected with the second shaft holes 01-4 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 01-4 of the upper wings, so as to adjust the upper and lower habitation of the side wings 04-10.

With reference to fig. 11, the lateral expansion sheet 04 with the channels 04-12 is particularly suitable for patients with cervical cancer and cervical cancer pre-lesion and other transvaginal operations, such as ultra-high frequency electric wave knife operation (LEEP knife operation), which not only has a wide operation space, a large and clear operation field and complete exposure, but also can immediately remove toxic smoke in the operation and protect the physical and mental 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 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 invention, the split design of the side expansion piece 04 through the channel main body 04-11 and the channel cover 04-13 is very beneficial to production and assembly, production and demolding of a mold, reduction of mold cost and capability of enabling workers to open the left and right expansion piece channel covers 04-13 under direct vision to accurately mount required objects in place, and the split design of the side expansion piece 04 is very ingenious, scientific, reasonable and advanced, because the split design is very ingenious and practical, for example, the split design is used for mounting lighting fixtures, cameras, smoke exhaust filtering devices and laying power lines and the like.

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 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 front opening 04-14 of the channel, and the rear opening of the channel. When the channels 04-12 are used for smoke evacuation, smoke enters from the front 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 front 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.

The product of the invention is just provided with the first expansion positioning device and the second expansion positioning device, so that a doctor can adjust the expansion angles of the upper wing, the lower wing, the left wing and the right wing according to the size of clinical needs, thereby being beneficial to examination, diagnosis, sampling, flushing, illumination, smoke exhaust, drainage, physical therapy and operation.

After the examination or operation, the left and right wings 04-10 are first retracted inward into the upper and lower wings 01-1 and 02-1, and then the upper and lower wings (01-1 and 02-1) are retracted, closed and taken out.

With continued reference to fig. 8-11, according to a preferred embodiment, the shaft pins 01-3, the corner shaft pins 04-18 of the side expansion pieces and the shaft pins 03-21 of the positioning connecting pieces of the present invention have large ends, small middle part, solid middle and lower parts, and elastic middle and upper parts, and the edge diameter of the split piece is larger than the split piece diameter, so that the whole structure is similar to a dumbbell-shaped shaft pin.

Having now described the concept and embodiments of the present invention in detail, it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit of the invention and the scope of the invention as defined in the appended claims.

Claims (10)

1. An instant four-wing vaginal dilator 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 shaft pins, the pressing handle and the holding handle can be positioned through a dilating positioning device,

the method is characterized in that: also comprises a first expansion positioning device consisting of a spiral expansion positioning instant destruction device and a second expansion positioning device consisting of a positioning connecting piece and a side expansion sheet which are engaged with each other,

the inner side of the lower part of at least one positioning connecting piece is provided with a positioning connecting piece shaft pin which extends 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 which can receive the side expansion piece corner shaft pin and is rotatably and detachably connected, and the top of the positioning connecting piece is also provided with a positioning connecting piece gear which is meshed with the side expansion piece gear;

the side expansion piece is provided with at least one channel consisting of a channel main body and a channel cover on the channel main body, the inner side of the front end of the side expansion piece is provided with an opening communicated with the channel, the rear end of the side expansion piece is provided with a pipe joint, the inner side in front of the pipe joint is provided with a side expansion piece gear which extends inwards in the radial direction and is provided with a second handle, the inner side in front 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.

2. The self-destruct four-wing vaginal dilator of claim 1, wherein one end of the side dilator gear is fixedly connected to the side wing, and the other end is a free end, the second handle being disposed at the free end.

3. The self-destructing four-wing vaginal dilator of claim 1, wherein the engagement of the tube connector and the second handle in opposite directions drives the free end of the side dilator piece gear to tilt up above the positioning connector gear, so that the left and right side wings open horizontally outward and close inward between the upper and lower wings.

4. The self-destruct four-wing vaginal dilator of claim 1, wherein the edge of the channel body has a groove edge for inserting the channel cover, the groove edge is provided with a plurality of small protrusions matching with the small concave holes on the inner surface of the channel cover, and the positions of the small protrusions and the small concave holes can be interchanged.

5. The self-destructive four-wing vaginal dilator of claim 1, wherein the side dilator pieces are pivotally connected to the positioning connecting members by pivot pins, and the positioning connecting members are pivotally connected to the second shaft holes at the rear ends of the upper wings, and the tube connector is rotated to move the side dilator pieces together with the positioning connecting members to pivot in the second shaft holes of the upper wings, thereby adjusting the upper and lower positions of the side wings.

6. The instant four-winged speculum 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 pressing handle hole is formed in the pressing handle, 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 formed in front of the shaft pin;

the lower expansion sheet comprises: the lower wing and with the integrative grab handle that extends downwards of lower wing rear end, be equipped with grab handle side hole and tilted pad on the grab handle, the tilted pad is established at the end of grab handle side hole, is equipped with the shaft hole between lower wing and grab handle, just the position in pivot and shaft hole can be displaced each other.

7. The instant four-wing vaginal dilator of claim 6 wherein the handle side holes are of a double layer design, the bottom layer is larger than the upper layer, the shape of the bottom layer is consistent with the positioning seat, and the shape of the upper layer is unlimited.

8. The instantaneously destroyed four wings vaginal dilator as claimed in claim 1, wherein said first dilating and positioning means is a spiral positioning and destroying means, comprising a positioning seat installed on the side hole of the handle and the cushion, a self-destroyed strip and a screw rod are arranged on the positioning seat in front and back, the lower part of the screw rod has a front dome of the screw rod for placing the self-destroyed strip, the screw rod is threaded through the handle hole to be screwed with the nut for positioning, at least one of the self-destroyed strip and the screw rod should have elasticity.

9. The instant four-wing vaginal dilator, as claimed in claims 1 and 7, wherein the screw and nut of the first dilating and positioning instant device, when screwed together and dilated to the maximum gear, can make the angle of the upper and lower wings open >40 °.

10. The instant four-wing vaginal dilator of claim 1, wherein the axle pins, the positioning connecting piece axle pins and the side dilating piece corner axle pins are big 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-like.

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