CN111990961A

CN111990961A - Self-destruction type four-wing vaginal dilator

Info

Publication number: CN111990961A
Application number: CN202011021243.5A
Authority: CN
Inventors: 林静
Original assignee: Jiangsu Aobojin Pharmaceutical Technology Co ltd
Current assignee: Jiangsu Aobojin Pharmaceutical Technology Co ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2020-11-27

Abstract

A self-destruction type four-wing vaginal dilator comprises an upper dilating piece and a lower dilating piece, wherein the upper dilating piece 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 piece 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 can be positioned through a dilating positioning device, the self-destruction type four-wing vaginal dilator further comprises a first dilating positioning device consisting of a hook-buckle dilating positioning self-destruction device and a second dilating positioning device consisting of a positioning connecting piece and a side dilating piece which are meshed. The self-destruction type four-wing vaginal dilator has the advantages of simple structure, simple and convenient operation, easy manufacture, economy, practicality, safe and effective use.

Description

Self-destruction type 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 a self-destruction type 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 vaginal dilator with attached wings on the upper wing and the lower wing is also the pioneering invention of star opening and forest and the like by Chinese people, the Chinese patent is granted with the number ZL201010227012.X, the upper attached wing and the lower attached wing are 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 aims of protecting the body health of medical staff and patients and relieving the pollution of an operating room are fulfilled, and the functions of illumination, image pickup and the like can be realized simultaneously.

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.

How to expand the left wing and the right wing outwards can be expanded to an ideal size according to clinical requirements, the vaginal dilator has long been difficult and is finally solved by independent innovation of Chinese people, the four-wing dilator of the invention not only can expand the left and right wings outwards, the outward expansion refers to gradual outward expansion in a closed state, the distance between the outward expansion of the left wing and the outward expansion of the right wing can reach more than 88mm, and the left wing and the right wing can be folded between the upper wing and the lower wing, this has been a long-standing problem, which has been solved by our chinese, so that a perfect structure, when in use, the four-wing vaginal dilator is put into the vagina and taken out from the vagina just like a double-wing vaginal dilator with only an upper wing and a lower wing, has a humanized design, reduces the pain of a patient to the minimum, and has obvious advantages in all aspects compared with the four-wing vaginal dilator invented by foreigners.

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 self-destruction type 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 self-destruction type four-wing vaginal dilator provided by the technical scheme of the invention comprises an upper dilator piece and a lower dilator piece, wherein the upper dilator piece 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 dilator piece 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, and the pressing handle and the holding handle can be meshed through a first dilation positioning device, and the self-destruction type four-wing vaginal dilator is characterized in that: also comprises a first expansion positioning device consisting of a hook buckle expansion positioning self-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.

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 upwards above the positioning connecting piece gear, so that the two side wings are opened until the required visual field is meshed, and at the moment, the vagina and the cervix can be observed, inspected and/or an operation can be performed through the expanded visual fields of the upper wing, the lower wing, the left wing and the right wing. When the clinical needs continue to expand, the inner diameter distance between the left and right side wings which are horizontally expanded outwards can reach more than 88mm and the left and right side wings are folded inwards between the upper and lower wings.

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 positioning buckle for being engaged by the positioning hook is arranged at the tail end of the pressing handle hole, 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 hook expansion positioning self-destruction device, the hook expansion positioning self-destruction device comprises a positioning seat arranged on a side hole of the handle and an inclined pad, a self-destruction strip and a positioning rod are arranged on the positioning seat in front of and behind, a handle hole on the handle is penetrated on the positioning rod, a positioning hook capable of being meshed with the positioning buckle at the tail end of the handle hole is arranged on the back of the rod, and at least one of the self-destruction strip and the positioning 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 positioning hook and the positioning buckle of the first expansion positioning self-destruction device expand to the maximum gear, the engagement can enable the opening angle of the upper wing and the lower wing to reach 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 in the middle lower part, and provided with pieces at the middle upper part, the edge diameter of each piece is larger than that of each piece, and the whole structure is similar to a dumbbell shape, so that the rotary assembly and disassembly are light, convenient and practical.

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 positioning self-destruction device is expanded through the hook buckle to keep the visual field range, 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 upwards tilt 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 expanded visual fields of the upper wing, the lower wing, the left.

After the examination, treatment or operation is finished, the pipe joint and the second handle are kneaded in opposite directions, then 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 hook buckle is unfastened, the self-destruction device is expanded and positioned, the self-destruction strip is broken at the moment, the positioning seat is slipped, 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 channel cover is used for disposable use and self-destruction after use, and has great significance for being applied to vaginal dilators such as cervical cancer LEEP operation and the like to avoid cross infection of iatrogenic diseases.

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 hook self-destruction device at home and abroad, and has the advantages of ingenious design, very simple structure, low price and high practicability.

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, is simple to use and operate clinically, and is 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 hook-and-loop expansion positioning self-destruction device, the whole clinical operation process is completely consistent with that of a non-self-destruction dilator, and the purpose of self-destruction is realized at the same time, so that 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 safe and effective functions of medical appliances.

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 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 left is a complete double-wing vaginal dilator with upper and lower wings, and the vaginal dilator can be widely and independently applied to clinic, so that the investment of the mold is greatly saved.

6. The device has few parts and low cost, can be used for operation and examination, and can be used for clinical examination as long as the pipe joint is connected with the negative pressure pipe when smoke exhaust, drainage and other purposes are needed in the operation, and the negative pressure pipe is not needed to be connected if smoke exhaust and drainage are not needed.

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 self-destructive four-wing vaginal dilator according to the present invention will be further illustrated by the following description and examples, without limiting the invention thereto.

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 of the expanded state of FIG. 1 with the upper and lower wings open at an angle greater than 40 °;

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

FIG. 5 is a schematic view of the dilator of FIG. 1 in a closed position after use and destruction;

FIG. 6 is an enlarged schematic view of the circle in FIG. 5;

FIG. 7 is a schematic view of the structure of the upper blade of the present stent;

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

FIG. 9 is a schematic view of the left and right positioning connectors of the present dilator;

FIG. 10 is a schematic view of the left and right stent pieces of the stent;

FIG. 11 is a schematic structural view of the self-destructive device for hook and buckle expansion positioning of the present dilator;

fig. 12 is a schematic view showing the expansion interval of the left wing and the right wing of the expander in an expanded state being larger than 88 mm.

Detailed Description

An embodiment of the self-destructive four-wing vaginal dilator of the present invention is described below with reference to the accompanying drawings. Referring first to fig. 1-8, a self-destructive four-winged vaginal dilator comprises: an upper expansion piece 01, the upper expansion piece 01 includes an upper wing 01-1, and a press 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, the left and right sides of the inner surface of the rear end of the upper wing are provided with shaft pins 01-3, a second shaft hole 01-4 is also arranged in front of the shaft pin 01-3, the second shaft hole 01-4 is used for the rotatable connection of a positioning connecting piece shaft pin 03-21, the press handle 01-2 is also provided with a press handle hole 01-8, and the tail end of the press handle hole 01-8 is provided with a positioning buckle 01-9 for the engagement of an elastic positioning hook.

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 the attached drawings 1-6 and 11, a first expansion positioning device for fixing the open state of the upper wing 01-1 and the lower wing 02-1 is a hook expansion positioning self-destruction device 09, which ingeniously combines the positioning function during use with the function of automatic destruction after use, the device further comprises a positioning seat 09-12 arranged in a side hole 02-8 of the handle and an inclined pad 02-9, the positioning seat 09-12 extends upwards to form an arc positioning rod 09-13 and a self-destruction strip 09-16 arranged in front of the positioning rod 09-13, the upper end of the positioning rod 09-13 is a push handle 09-15, the back of the positioning rod 09-13 is provided with a positioning hook 09-14, the positioning hook 09-14 passes through a handle hole 01-8 to be engaged and positioned with a positioning buckle 01-9 at the tail end of the positioning rod 09-13, the doctor can carry out quick fixation, regulation and fixing according to the size of operation scope.

The self-destruction strip 09-16 is a strip which is shorter, smaller and slightly inclined forwards as a whole, the front surface of the strip is tightly attached to the front wall of the side hole 02-8 of the handle, and the positioning seat 09-12 is more firmly fixed in the side hole 02-8 of the handle and the inclined pad 02-9 due to the front and back tension of the self-destruction strip 09-16 and the positioning rod 09-13. When a doctor pushes the push handle 09-18 once after use, the self-destruction strip 09-16 is applied with force by the push handle 09-18 and the positioning rod 09-13, the abdomen of the self-destruction strip is immediately fractured by the extrusion of the side hole 02-8 of the handle, and the self-destruction strip 09-16 is immediately fractured by the impact force when the positioning seat 09-12 slips under the lever action of the positioning seat 09-12 and the inclined pad 02-9 of the positioning rod 09-13, so the fracture of the self-destruction strip 09-16 is almost simultaneously performed with the slipping of the positioning seat 09-12 from the side hole 02-8 of the handle and the inclined pad 02-9, and the positioning rod 09-13 can not be buckled, expanded and positioned with the positioning buckle 01-9 any more due to the slipping of the positioning seat 09-12, the positioning rod 09-13 is out of position, 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 positioning rod 09-13 is out of position, the positioning rod is still connected with the positioning seat 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 device, and therefore, the operation is simple, labor-saving, convenient, practical, safe and effective.

With continuing reference to fig. 1-6 and 11, 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 positioned 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. 7-8, the self-destruction device for positioning and expanding the clasp is designed at 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 self-destruction device 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. 3-4, 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 positioning hooks 09-14 enter the positioning buckles 01-9 to be engaged and 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 and perform an operation, wherein the self-destruction strip 09-16 is also intact.

Referring to fig. 5-6, when the clinical operation is finished, the doctor pinches the pipe joints 04-17 and the second handles 04-16, the side expansion piece gears 04-15 can be separated from the positioning connecting piece gears 03-23, the side wings 04-10 are retracted to the space between the upper wings and the lower wings, the doctor pushes the push handles 09-15 forward, the self-destruction strip 09-16 or the crown 09-17 is pressed by the front wall which slightly protrudes backwards from the middle part of the upper layer of the side hole 02-8 of the handles due to the pushing force and the elastic action of the positioning rod 09-13, the self-destruction strip 09-16 or the crown 09-17 is broken and cannot be restored immediately, the positioning hooks 09-14 naturally separate from the positioning buckles 01-9, and the upper wings and the lower wings (01-1 and 02-1) are closed automatically.

Referring to fig. 7 and 11, according to a preferred embodiment of the present invention, a positioning buckle 01-9 for engaging with a flexible positioning hook 09-14 is provided at the end of a pressing handle hole 01-8, the positioning hook 09-14 is provided with at least one hook or a plurality of hooks, and the positioning hook 09-14 is engaged with the positioning buckle 01-9, so that the present invention is convenient to operate, reliable in fixation and very practical.

Referring to fig. 8, 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 slant 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 seats 09-12

More stable installation therein.

With continued reference to fig. 8, 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 positioning seat 09-13 can not be screwed with the positioning buckle 01-9 in a tight fit manner under the action of the positioning seat 09-13 transmitted by the positioning rod 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. 9, the left and right positioning members are a pair of members having the same structure but arranged symmetrically. The positioning connecting piece 03 is arranged on the outer side of the rear end of the upper wing 01-1 and is rotatably 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 capable of receiving a side expansion piece corner pin shaft 04-18 is further arranged on the outer side of the positioning connecting piece pin shaft 03-21, and a positioning connecting piece gear 03-23 meshed with the side expansion piece gear is further 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. 10, 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 and 12, 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 and 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. 9-10, in this embodiment, the corner shaft pins 04-18 of the side expansion pieces are connected with the positioning connecting piece shaft holes 03-22, the positioning connecting piece shaft pins 03-21 positioned inside the positioning connecting piece shaft holes 03-22 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. 10, 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, thereby protecting 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 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.

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 continuing reference to fig. 7 and 9-10, 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 are large at two ends, small in the middle, solid at the middle and lower parts, elastic in the middle and upper part, and the edge diameter of the split piece is larger than that of the split piece, and the whole body is similar to a dumbbell-shaped shaft pin.

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

1. A self-destruction type four-wing vaginal dilator comprises an upper dilating piece and a lower dilating piece, wherein the upper dilating piece 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 piece 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 hook buckle expansion positioning self-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,

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 self-destructing four-wing vaginal dilator of claim 1, wherein the upper dilator 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 arranged on the pressing handle, a positioning buckle for being engaged by the positioning hook is arranged at the tail end of the pressing handle hole, 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;

the lower expansion sheet 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.

7. The self-destructive 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 that of the positioning seat, and the shape of the upper layer is unlimited.

8. The self-destructing four-wing vaginal dilator according to claim 1, wherein the first dilator positioning device is a hook buckle dilator positioning self-destructing device, the hook buckle dilator positioning self-destructing device comprises a positioning seat arranged on a side hole of the handle and a cushion, a self-destructing strip and a positioning rod are arranged on the positioning seat in front and back, a handle hole on the handle is penetrated on the positioning rod, a positioning hook capable of being engaged with a positioning buckle at the tail end of the handle hole is arranged on the back of the rod, and at least one of the self-destructing strip and the positioning rod should have elasticity.

9. The self-destructing four-wing vaginal dilator according to claims 1 and 7, wherein the positioning hook and the positioning buckle of the first dilating positioning self-destructing device are engaged when dilating to the maximum gear, so that the opening angle of the upper and lower wings is greater than 40 degrees, and the positions of the positioning hook and the positioning buckle can be interchanged.

10. The self-destructive four-wing vaginal dilator of claim 1, wherein the shaft pins, the positioning connecting piece shaft pins and the side dilation piece corner shaft pins 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 vaginal dilator looks like a dumbbell.