CN213345588U - Self-destruction four-wing speculum - Google Patents

Abstract

The utility model provides a four wing specula of self-destruction formula, including one on expand piece, one expand piece down, at least one side expansion piece and position sleeve, go up expansion piece and expand piece rotatable coupling down and fix a position through expanding positioner, the position sleeve respectively with last expansion piece and side expansion piece rotatable coupling, its characterized in that still includes the first expansion positioner who comprises hook buckle expansion location self-destruction device, and the second positioning hook that has the second handle on the side expansion piece detains the meshing with the second of position sleeve both ends top and constitutes second expansion positioner, the utility model discloses simple structure, convenient operation makes easily, economical and practical, and it is safe effective to use.

Description

Self-destruction four-wing speculum

Technical Field

The utility model relates to a vaginal dilator of medical instruments in obstetrics and gynecology department, in particular to a self-destruction four-wing speculum.

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 fixed structure invented by Americans John L.Marco in 1949, one double-wing vaginal dilator needs 12 parts at least for examination and 8 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 vagina dilator with the patent authorization number of 891083928 (which is the abbreviation of double-wing vagina dilator) invented by the Linjing teacher of the Wenzhou medical university in 1989 in China, only 2 parts are used to form one vagina dilator no matter the examination type or the operation type, and the vagina dilator has all the advantages invented by Americans in function, and has the advantages of few parts, convenient operation, high speed, low manufacturing cost, particular suitability for manufacturing disposable 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 vaginal relaxation and patients needing cervical surgery, namely ultrahigh frequency electric wave knife (LEEP) surgery, in clinic, 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, thereby reducing the exposure range and bringing difficulty to examination or surgery. 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 scorched 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.

In 2010, the chinese intellectual property office records a vaginal dilator with double side wings, which was originally invented by the national forest, Zhang Xingxing research team, the Patent of the chinese invention is granted as ZL201010227014.9, which was originally proposed and solved at home and abroad to make the upper, lower, left and right four wings of the dilator both outward expandable and inward foldable, and to fold the left and right wings into the upper and lower wings, the excellent and very practical structure was originally invented by our china, but the four-wing speculum invented by the inventor of other countries internationally, the left and right wings both cannot outward expand or inward foldable, for example, the four-wing speculum Patent Number invented by the american: 6,024,696, the left and right wings can only be "upright" and "lying down", but cannot be expanded outward and collapsed inward! The four-wing speculum of our Chinese invention is not only simple in structure and convenient in operation, but also is safe and effective in use, especially, the upper and lower dilation pieces can effectively expand to the upper and lower walls of the vagina to the required positions according to the clinical requirements, the left and right dilation pieces can also effectively expand to the required positions to the side walls of the vagina according to the clinical requirements, after the examination or operation is finished, the left and right dilation pieces can be folded inwards to the space between the upper and lower wings, and the upper and lower wings are also recovered and closed.

The four-wing speculum invented by the American people has the advantages of more than 20 parts, complexity, heaviness, inconvenience in operation, high manufacturing cost and more defects, and the four-wing speculum invented by the Chinese people, namely the vaginal dilator with double side wings, has only 4 parts (including an upper dilating plate, a lower dilating plate, a positioning sleeve and a side dilating plate) in total, has few parts, is simple to operate, is economical and practical, and has functions far exceeding those of the four-wing speculum invented by the American people.

In 2010, the Chinese intellectual property office records a vaginal dilator with attached wings at the upper and lower wings, which is originally invented by ZL201010227012.X in Zhang Xingxing, forest and the like in China, and the Chinese patent authorization number is ZL201010227012.X, the invention is originally provided and solved at home and abroad, the upper and lower attached wings can be arranged on the inner surfaces of the upper and lower wings, so that the problem that toxic smoke can be quickly eliminated at the position nearest to the operation during an 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, camera shooting and the like can be simultaneously realized.

The two inventions also apply for international patents of the United states, Europe and the like, and are authorized by the United states patent office, namely the patent number US 8,876,711B 2EP and the European patent office, and the patent number EP 2586486B 1.

However, a common drawback of the above inventions at home and abroad is that, since only one handle (or pipe joint) is provided at the rear end of the left and right expansion pieces, and there is no second handle, the pipe joint actually becomes a handle for controlling the left and right expansion pieces to work, and it is found in clinical practice that the second positioning hook cannot be lifted up only by the pipe joint or the pipe joint, so that it is difficult to enter the second positioning hook, and even if the second positioning hook is forced to enter the second positioning hook, it is difficult to easily release the second positioning hook from the positioning hook, so that it loses practical value, the utility model adds the second handle above the second positioning hook, and the result is completely different, so that the doctor can lift up the second positioning hook to easily release or enter the second positioning hook by kneading the pipe joint and the second handle, and the operation is convenient and the adjustment is free, which has a substantial significance to the fundamental change and progress of the defects of the known technology, thereby having utility.

In addition, the side expansion piece insertion piece in the prior art is of a solid structure, the installation and the rotation are quite inconvenient, the insertion piece is designed into a second shaft pin structure at present and is rich in elasticity, the insertion piece can be lightly and rapidly installed in the shaft sleeve, the edge parts of two sides of the front end of the shaft sleeve are made into reverse buckles, the second shaft pin can be effectively prevented from slipping during use, and the rotation is light, convenient and practical during clinical use.

Another defect of the prior art is to set the second positioning buckle on the positioning seat, and the result of the setting is that when the left and right side wings expand to the maximum gear, the open interval of the left and right side wings is 58mm, the utility model discloses the position setting of second positioning buckle is on the positioning sleeve, so that when the left and right side wings expand to the maximum gear, the open interval of the left and right side wings is >88mm, which is increased by 1.52 times compared with the prior art, which is of extraordinary significance to the clinic, greatly increases the operative field and the operative space, can satisfy the operative requirements of other patients with cervical diseases such as ultrahigh frequency electric wave knife (LEEP knife) operation, achieves the effect of fundamental progress, and proves that it has significant technical effect.

On the other hand, media report that lawbreakers are recycled and reused, for the first creation of self-destruction disposable aseptic vaginal dilator (the patent name is an instant-destruction painless and noiseless disposable vaginal dilator, the patent authorization number is 200420116743.7) in China, forest silence and Zhangxing, since 2004, the principle is that an 'instant-destruction belt' is arranged at the non-stressed part of a dilator handle or a press handle, and the 'instant-destruction belt' is broken after use to realize destruction, so that the aim of non-reuse is achieved.

Disclosure of Invention

The utility model aims at providing a self-destruction four-wing speculum which can overcome the defects of the prior art.

In order to achieve the above object, the technical scheme of the utility model provide a four wing specula of self-destruction formula, including one on expand piece, one expand piece down, at least one side expansion piece and position sleeve, on expand piece and expand piece rotatable coupling down and fix a position through expanding positioner, the position sleeve respectively with last expansion piece and side expansion piece rotatable coupling, still include the first expansion positioner who comprises hook buckle expansion location self-destruction device, and the second location knot meshing that has the second handle on the side expansion piece constitutes second expansion positioner with the second location knot of position sleeve both ends top.

In a preferred embodiment, one end of the second positioning hook is fixedly connected with the side expansion piece, the other end of the second positioning hook is a free end, and the second handle is arranged at the free end.

In another preferred embodiment, the side expansion piece is a solid structure, the rear end of the side expansion piece is provided with a first handle, and a second positioning hook which is radially inward and a second handle, a second shaft pin and a side wing which are integrally and upwardly extended with the second positioning hook are sequentially arranged in front of the first handle.

In another preferred embodiment, the first handle or the pipe joint and the second handle are kneaded in opposite directions to drive the free end of the second positioning hook of the side expansion piece to tilt upwards above the second positioning buckle, so that the distance between the inner diameters of the outwards horizontally opened left and right side wings reaches more than 88mm and the inwards folded upper and lower side wings are folded inwards.

In another preferred example, the side expansion piece is a hollow structure with a channel, the rear end of the side expansion piece is a pipe joint, and a second positioning hook which is radially inward and a second handle, a second shaft pin and a side wing which are integrally and upwardly extended with the second positioning hook are sequentially arranged in front of the pipe joint.

In another preferred embodiment, the side expansion piece of the hollow structure is a channel consisting of a channel main body and a channel cover thereon, the inner side of the front end of the channel cover is provided with a positioning protrusion so that the channel cover can be quickly and accurately installed on the positioning recess of the main body, and the front end of the channel is provided with at least more than one channel opening.

In another preferred embodiment, the first handle or the pipe joint and the second handle are pinched together to make the second positioning hook tilt up and move and fix on the second positioning buckle, so that the left and right side wings open outwards and open horizontally and close inwards between the upper and lower wings.

In another preferred embodiment, the positioning sleeve is provided with a convex protrusion in the middle of the outer side thereof, and the positioning sleeve and the upper and lower centering positions of the side wings can be adjusted by shifting the convex protrusion upwards or downwards.

In another preferred embodiment, the inner sides of two ends of the positioning sleeve are provided with second shaft pins which are rotatably and detachably connected with second shaft holes at the rear ends of the upper wings, two sides of the rear end above the sleeve are provided with second positioning buckles, the outer sides of two ends of the sleeve are provided with mounting seats, the outer sides of the seats are respectively provided with a shaft sleeve capable of receiving the second shaft pins of the side expansion pieces, and the shaft sleeves are open-type shaft sleeves so as to enable the side wings to pivot relative to the mounting seats.

In another preferred embodiment, the two side edge portions of the front end of the split axle sleeve are made into reverse buckles, so that the second axle pin can rotate flexibly and cannot slip off when in use. In another preferred embodiment, the second positioning hook and the second shaft pin should have elasticity. In another preferred example, the expansion distance of the left expansion piece and the right expansion piece in the maximum gear expansion state is larger than 88 mm.

In another preferred embodiment, 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 (or called tail end) of one side of the upper wing, a first 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 first shaft pin; the pressing handle is also provided with a pressing handle side hole, and the tail end of the pressing handle side hole is provided with a positioning buckle for the engagement of the positioning hook; the lower expansion sheet comprises: the lower wing and the grab handle are integrated with the lower wing and extend downwards from the rear end of the lower wing, and a shaft hole is formed between the lower wing and the grab handle; the grab handle is provided with a grab handle side hole and an inclined pad, and the inclined pad is arranged at the tail end of the grab handle side hole; in another preferred embodiment, a shaft hole is arranged between the upper wing and the pressing handle, and a shaft pin is arranged between the lower wing and the holding handle.

In another preferred embodiment, a limit groove for placing a limit block at the inner side of the positioning sleeve is arranged in the middle of the rear part of the upper wing, so as to limit the limit range of the downward rotation of the positioning sleeve and the side wing.

In another preferred embodiment, the first expansion positioning device is a hook buckle expansion positioning self-destruction device, the hook buckle 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 which are integrally formed with the positioning seat are arranged on the positioning seat in the front and at the back, the side hole of the handle is penetrated on the positioning rod, a positioning hook which can be engaged with the positioning buckle at the tail end of the side hole of the handle is arranged on the back of the rod, and at least one of the self-destruction strip and the positioning rod has elasticity.

In another preferred embodiment, when the positioning hook of the hook buckle expanding positioning self-destruction device is meshed with the positioning buckle to expand to the maximum gear, the opening angle of the upper wing and the lower wing can reach more than 40 degrees.

In another preferred embodiment, the four-wing speculum further comprises an expansion self-destruction device, and the expansion self-destruction device comprises a sheet arranged on the press handle and a poking strip arranged on the grab handle. In another preferred embodiment, the upper part of the press handle is provided with a sheet with at least one side fixed; the upper part of the grab handle is provided with a poking strip corresponding to the position of the thin sheet.

In another preferred embodiment, the middle part of the grab handle is provided with a double-layer grab handle side hole, the bottom layer is larger than the upper layer, and the shape of the bottom layer is consistent with that of the positioning seat. In another preferred embodiment, the inclined pad is arranged at the end of the bottom layer. In another preferred example, the top end of the self-destruction strip extends forwards to form a crown. In another preferred embodiment, the handle is optionally provided with a protrusion arranged in front of the hole beside the handle, and the crown is buckled with the protrusion arranged in front of the hole beside the handle.

In another preferred embodiment, the end of the side hole of the pressing handle is provided with a wedge-shaped positioning buckle.

In another preferred embodiment, a rectangular pressing handle side hole is formed in the middle of the pressing handle, and a wedge-shaped positioning buckle is arranged at the tail end of the pressing handle side hole.

In another preferred embodiment, the hole beside the handle is provided with an inclined pad at the rear end of the bottom of the hole.

In another preferred embodiment, the middle part of the grab handle is provided with a round grab handle side hole, 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.

In another preferred embodiment, the positioning seat is polygonal, thick in front and thin in back. Optimally, the shape is similar to a treasured gourd, and the front part is thick and the rear part is thin.

In another preferred example, the self-destruction strip is in a strip shape, the head end of the self-destruction strip is provided with a crown, and the whole self-destruction strip is slightly inclined forwards. The front surface is the front wall of the side hole of the grab handle, and the rear surface is a positioning rod. In another preferred embodiment, the self-destruction strip is shaped like a 7 in the transverse direction.

In another preferred embodiment, the positioning rod is integrally arc-shaped, the top part is a push handle, the middle part of the back surface is a positioning hook arranged in a zigzag manner, and the lower part is relatively flat and inclines forwards.

In another preferred embodiment, the first shaft pin and/or the second shaft pin has two ends slightly larger, a middle part slightly smaller, a solid middle lower part and a split piece at the middle upper part, and the diameter of the edge of the split piece is slightly larger than that of the split piece, so that the whole dumbbell-shaped structure is formed.

The expanding, positioning and destroying device and/or the expanding and self-destroying device of the utility model are also suitable for other double-wing, three-wing, four-wing or multi-wing vaginal dilators. The upper expansion piece, the lower expansion piece, the expansion positioning destroying device and/or the expansion self-destroying device can be made of degradable materials.

The side expansion sheet with the solid structure without the channel is particularly suitable for manufacturing examination type, is used for vaginal screening of precancerous lesion, vaginal examination of patients with vaginal side wall prolapse, vaginal relaxation, particularly obesity and the like, and is used for physical treatment of laser, microwave and the like.

The side expansion sheet with the channel hollow structure is particularly suitable for manufacturing operation types, is used for operations such as ultrahigh frequency electric wave knives for patients with cervical cancer and precancerous lesions, and the like, smoke generated by the ultrahigh frequency electric wave knife operations can be directly discharged out of the body by connecting the smoke with a negative pressure device through a pipe joint, and is very convenient and practical.

The pipe joint has at least three functions, one is that the pipe joint plays the role of a first handle: when the pipe joint is pinched with the second handle, the second positioning hook can be enabled to be tilted upwards on the second positioning buckle above the positioning sleeve to move; secondly, when the pipe joint is not externally connected with a negative pressure device, the dilator can be used for examination; thirdly, when the pipe joint is externally connected with a negative pressure pipe, the device can be used for smoke exhaust in operation and the like.

According to the utility model discloses a four wings specula of self-destruction formula, during the use, with a left side, the right wing is closed on, go down the closed state between the wing and put into the vagina, control grab handle and press the handle, make on, the lower wing opens to required field of vision, it keeps the field of vision scope to make it through first expansion fixed knot structure, then control a left side in opposite directions, the first handle or coupling and the second handle of right wing rear end, second location hook tip upwarps along with pulling of second handle, it is very convenient to buckle the unsettled removal in top and rather than the meshing in the second location, make a left side, the right wing expands and fixes according to clinical needs, alright this moment accessible, the field of vision observation of lower wing and left and right wing expansion, inspect the vagina, the cervix or carry out operation and microwave therapy etc..

When the vagina or cervix is required to be subjected to ultrahigh frequency electric wave knife operation, the generated smoke can pass through the opening at the inner side or the front end of the left wing and/or the right wing, pass through the channel and be discharged under the condition that the rear end is connected with the negative pressure device.

When it is desired to install an illumination device, such as an LED, at the opening on the inside or front end of the left and/or right wing, the electrical supply lines to the wing can be routed through the channels in the wing to the power source so that the examination or surgical site can be illuminated.

When a camera is required to be installed at the opening at the inner side or the front end of the left wing and/or the right wing, an image of the inspection part can be provided in real time.

After the examination and the operation are finished, the first handle and the second handle are kneaded in opposite directions, the second expansion positioning device on the engagement side expansion sheet and the positioning sleeve can be loosened, the left wing and the right wing are contained in the upper wing and the lower wing, the first expansion positioning device is released, the upper wing and the lower wing are closed and folded, and at the moment, the speculum can be taken out from the vagina.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses detain the setting with the second location and sheathe in the position fixing, the change of this design can make the open internal diameter interval of left and right wing reach >88mm, detain the 58mm that sets up on the mount pad with the second location than the well-known technique and increased 1.52 times, prove that it has the significance progress, and this to clinical, no matter see a doctor, sample, operation, physiotherapy etc. has all greatly improved medical instrument's validity.

2. The utility model discloses be equipped with the second handle on second location hook, overcome the four wings side expansion piece rear end of well-known technique only one handle and can't realize adjusting and deviating from etc. serious drawback, the utility model discloses the ingenious design of second handle has been increased above second location hook, just can make the doctor when clinical use, as long as mediate first handle or coupling and second handle in opposite directions, the second handle that is located second location hook top will drive second location hook tip upwarp, makes second location hook buckle the unsettled removal in top in the second location, fixes or deviate from, just can make a left side, the outside level of right side wing open and inwards receive close supreme, lower wing within a definite time.

3. The utility model discloses be the hasp expansion location self-destruction device with first expansion positioner design, the purpose of self-destruction is realized simultaneously to the operation process and the non-self-destruction expander complete conformity, and during the expansion of upper and lower wing, its both wings open the angle and reach >40 degrees, have sufficient field of vision firstly, have secondly stopped the cross infection of iatrogenic disease, have played the effectual effect of protection health and medical instrument safety.

4. The utility model discloses still make into the second axle round pin of utensil elasticity with side expansion piece second axle round pin, just so very favourable install it in the axle sleeve, and the practicality is good when clinical use, light, nimble during the rotation.

5. The utility model discloses make the back-off with the front end both sides edge part of the axle sleeve on the positioning seat to make the second axle round pin can not the slippage when using and safe and reliable.

Drawings

FIG. 1 is a schematic structural view (operation type) of the speculum in a closed state before use and entering the vagina;

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

FIG. 3 is a schematic view (surgical type) showing the expanded state of FIG. 1 with the angle of the upper and lower wings being greater than 40 °;

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

FIG. 5 is a schematic view of the closed state of the device shown in FIG. 1 after use and destruction (surgical type);

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 expansion plate of the speculum;

FIG. 8 is a schematic view of the structure of the lower expansion plate of the speculum;

FIG. 9 is a top view of the positioning sleeve of the speculum;

FIG. 10 is a rear view of the positioning sleeve of the speculum;

FIG. 11 is a schematic view of the solid structure of the left and right expansion plates of the speculum;

FIG. 12 is a schematic view of the hollow structure of the left and right expansion plates of the speculum;

FIG. 13 is a schematic view (inspection type) showing the expanded state of the speculum with the left and right wings having an opening distance of more than 88 mm;

FIG. 14 is a schematic structural view of the self-destruction device with hook and buckle expansion positioning of the speculum;

FIG. 15 is a schematic view of the structure of the thin section of the upper expansion plate of the speculum;

FIG. 16 is a schematic view of the structure of the lower expansion plate poking strip of the speculum;

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

Referring to the attached drawings 1-8, the self-destructive four-wing speculum comprises an upper expansion sheet 01, wherein the upper expansion sheet 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, first shaft pins 01-3 are arranged on the left side and the right side 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 first shaft pin 01-3, the second shaft hole 01-4 is rotatably connected with a second shaft pin 03-21, a pressing handle bypass hole 01-8 is further arranged on the pressing handle 01-2, and a positioning buckle 01-9 for a positioning hook to be engaged is arranged at the tail end of the pressing handle bypass hole; a lower expansion piece 02, the lower expansion piece 02 comprises a lower wing 02-1, a grab handle 02-2 which is integrated with the lower wing 02-1 and extends downwards along the direction which is close to the right angle of the lower wing 02-1, the grab handle is provided with a grab handle side hole 02-8, a convex protrusion 02-7 and an inclined pad 02-9, the inclined pad 02-9 is arranged at the rear end of the bottom layer of the grab handle side hole 02-8, a shaft hole 02-3 is arranged between the lower wing and the grab handle, the convex protrusion 02-7 is arranged in front of the side handle side hole 02-8, 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 first pin shaft, therefore, the upper wing 01-1 and the lower wing 02-1 can be opened and closed by controlling the press handle 01-2;

referring to the attached drawings 1-6 and 14, 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 buckle expansion positioning self-destruction device 09 which ingeniously combines the positioning function during use and the automatic destruction function before taking out the expander after use, the device further comprises a positioning seat 09-12 arranged in a side hole 02-8 of a grab 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 the side hole 01-8 of the handle to be engaged and positioned with a positioning buckle 01-9 at the tail end of the positioning hook 09-13, the doctor can carry out quick fixation, regulation and fixing according to the size of operation scope.

With continued reference to FIG. 14, destruct strip 09-16 is a shorter, smaller strip that is slightly forward tilted overall, with the front side abutting the front wall of handle bypass hole 02-8, and positioning socket 09-12 is more securely held in handle bypass hole 02-8 and angled pad 02-9 due to the forward and rearward tension of destruct strip 09-16 and 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.

Referring to fig. 1-6 and 14, 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, and 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.

With continued reference to fig. 1-8, the first dilation positioning device 09 is arranged on one side of the pressing handle 01-2 and the holding handle 02-2, which brings about the advantage that the visual field and the space of the whole dilator are enlarged, when the upper and lower wings are dilated, the opening angle of the upper and lower wings can reach more than 40 degrees, which is very beneficial to various operations and examinations of obstetrics and gynecology department, because the vagina and the cervix can be fully exposed by more than 40 degrees, and the vaginal orifice can be effectively protected from being excessively dilated, so that the clinical use is more beneficial to diagnosis and treatment and operation, and is safer and more effective.

Referring to fig. 15-16, according to another preferred embodiment of the present invention, the self-destructive device comprises a thin sheet 01-6 on the handle 01-2 and a poking strip 02-6 on the handle 02-2, and has a self-destructive function of synchronous and immediate self-destruction during expansion, wherein the poking strip 02-6 on the handle 02-2 can pierce the thin sheet 01-6 on the handle 01-2 to achieve self-destruction during expansion, which is clinically practical, and the user can see that the dilator has been clinically used without further use at a glance.

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, 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, at this time, the self-destruction strip 09-16 and the crown 09-17 are seen to be intact, and the thin sheet 01-6 of the dilating self-destruction device on the press handle 01-2 is also intact, and the thin sheets are still in the normal position.

With continuing reference to fig. 3-4 and 15-16, 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 meshed and fixed, the left wing 04-10 and the right wing 04-10 are also expanded to a required position, the doctor starts to inspect, diagnose and perform an operation, at the moment, the self-destruction strip 09-16 is also intact, and the poking strip 02-6 on the grab handle 02-2 punctures the thin sheet 01-6 on the press handle 01-2 immediately in the expansion process to realize self-destruction, so that the cost is not increased, and the operation is simple, practical and clear at a glance.

Referring to fig. 5-6, according to a preferred embodiment, when the clinical examination or operation is finished, the doctor pinches the operation type pipe joint 04-8 and the second handle 04-5, and the second handle 04-5 pulls the second positioning hook 04-4 and lightly disengages from the second positioning buckle 03-5 by its elastic action, and easily retracts the lateral wing 04-10 between the upper and lower wings; at the moment, the doctor pushes the push handle 09-15 forwards, due to the pushing force and the elastic action of the positioning rod 09-13, the positioning rod forwards enables the self-destruction strip 09-16 to be extruded by the front wall which is slightly protruded backwards in the middle of the upper layer of the side hole 02-8 of the handle, the root part of the self-destruction strip is fractured and cannot be restored immediately, the positioning hook 09-14 naturally breaks away from the positioning buckle 01-9, the upper wing and the lower wing are closed automatically, and the doctor takes out the speculum.

Referring to fig. 7-8, 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 side hole 01-8, the bottom layer is larger than the upper layer, and a cushion 02-9 is formed at the rear end of the bottom layer of the hole.

According to another embodiment of the utility model, the bottom layer of the side hole 02-8 of the handle is designed into a shape of a treasured gourd, and the locating seat 09-12 of the shape of the treasured gourd matched with the shape of the bottom layer can be more firmly arranged in the bottom layer of the side hole 02-8 of the handle, which is not only beautiful and practical, but also ensures safe and reliable clinical use, the design of the upper layer and the lower layer can reduce the whole thickness of the locating seat 09-12 and the design of the locating seat 09-12 with thick front and thin back, so that the locating seat 09-12 can be more easily slipped from the side hole 02-8 of the handle and the inclined pad 02-9 and the locating seat 09-13 can not be tightly screwed with the locating buckle 01-9 under the action of the lever of the inclined pad 02-9 through the transmission of the locating rod 09-13 under the action of the forward pushing force of the pushing handle 09-, 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.

Referring to fig. 9-10, according to a preferred embodiment of the present invention, the positioning sleeve 03 is rotatably and detachably connected to the second shaft holes 01-4 at the rear ends of the upper wings via the second shaft pins 03-2 at the inner sides of the two ends of the sleeve 03-1, so as to be rotatable up and down, the center of the inner side of the positioning sleeve is provided with a limiting block 03-4, the two ends of the outer side of the sleeve are respectively provided with a mounting seat 03-3, the outer side of the seat is provided with a shaft sleeve 03-6 capable of receiving the second shaft pins 04-3 folded between the upper and lower wings, and the edges or parts of the two sides of the front end of the shaft sleeve 03-6 are made into an inverted buckle 03-9, so as to ensure that the second; a second positioning buckle 03-5 is further arranged above the two ends of the positioning sleeve, and the second positioning buckle 03-5 is meshed with a second positioning hook 04-4 to form a second expansion positioning device; the limiting block 03-4 can enable the side wing 04-10 to be positioned when moving downwards to the optimal position.

With continued reference to fig. 9-10, preferably, the central position in front of the positioning sleeve 03 may be provided with a sleeve protrusion 03-8, the upper and lower portions thereof may be provided with a sleeve groove 03-7, and the sleeve groove 03-7 or the sleeve protrusion 03-8 is held by a hand, so that the positioning sleeve 03-1 can drive the side expansion sheet 04 to move up and down.

Referring to fig. 11, according to an embodiment of the present invention, there is no channel in the side expansion sheet, and the side expansion sheet 04 with a solid structure has a very simple structure, which is sequentially from the front to the back: the side wing 04-10, the second shaft pin 04-3, the second positioning hook 04-4, the second handle 04-5 on the second positioning hook and the first handle 04-8 at the rear end are particularly suitable for non-surgical precancerous lesion screening or examination and sampling of patients with vaginal wall mucosa prolapse, microwave, laser and other physical treatments.

Referring to fig. 12, according to another embodiment of the present invention, the side expansion piece 04 has a channel, the side expansion piece 04 of the hollow structure has a channel 04-6 composed of a main body 04-1 and a channel cover 04-2 thereon, the inner side of the front end of the channel cover 04-2 has a positioning protrusion 04-9, the channel cover 04-2 can be quickly and accurately mounted on a main body positioning recess (not shown), the front end of the channel has at least one channel opening 04-7, which sequentially follows from back to front: the hollow side expansion piece is particularly suitable for cervical surgery and other patients who undergo vaginal surgery, such as cervical cancer or cervical cancer-preceded lesion requiring ultrahigh frequency electric wave knife surgery (also called LEEP knife surgery and the like), has a wide operation space, is exposed comprehensively, has a large and clear operation field, can simultaneously remove toxic smoke in the operation, and is also used for washing the vagina and the like.

With continuing reference to fig. 12, on the other hand, the side expansion piece 04 is quite favorable for production and assembly due to the split design of the main body 04-1 and the channel cover 04-2, which is favorable for injection molding and demolding and fast product realization, and is favorable for reducing the mold volume and the mold cost, moreover, an installer can open the channel cover 04-2 to accurately install the required objects in place, and the design is quite ingenious and practical, for example, the requirement for installing a lighting lamp, a camera and a smoke exhaust filtering device and laying a power line, and the like, and the side expansion piece 04 with the hollow structure can be used for inspection and use before cervical cancer general investigation and the like when an external smoke exhaust negative pressure device is not needed; therefore, the side expansion piece 04 is skillfully, scientifically, reasonably and advanced in various designs.

With continued reference to fig. 11-12, the second axle pin 04-3 of the side expansion piece is designed to be open-ended and resilient, so that it can be easily installed into the axle sleeve 03-6, and when in use, it is flexible to rotate, and convenient and practical to operate. And because the second positioning hook 04-4 is positioned at the free end and has elasticity, the second handle is also arranged to be biased to the free end, and the second positioning hook can enter or exit the second positioning buckle 03-5 along with the upward tilting of the second handle 04-5 on the second positioning hook in use, so that the adjustment and the fixation are convenient.

Referring to fig. 3 and 13-14, the utility model has the first and second positioning devices, the doctor can adjust the upper, lower, left and right wings to effectively expand the upper and lower walls and the left and right side walls of the vagina to the required positions according to the needs of the clinical patient, when the maximum gear is expanded, the opening angle between the upper and lower wings can reach more than 40 degrees, the outward horizontal opening distance between the left and right wings can reach more than 88mm, after the examination or operation is finished, the left and right wings 04-10 are firstly recovered inwards to the upper and lower wings (01-1, 02-1), finally the upper and lower wings (01-1, 02-1) are recovered and closed, and the dilator can be self-destructed in the operation process, thereby achieving two purposes.

According to a preferred embodiment, first pivot and/or second pivot be that two are big, the centre is little, the middle lower part is solid, well upper portion is opened the piece and is rich in elasticity, the marginal diameter of opening the piece slightly is greater than and opens the piece diameter, wholly resembles dumbbell shape pivot, not only the assembly is easy, rotates light convenience during clinical use moreover, and is nimble freely, has improved doctor's work efficiency.

The expansion positioning self-destruction device and/or the expansion self-destruction device of the utility model is also suitable for other double-wing, three-wing, four-wing and multi-wing vaginal specula.

The four-wing speculum of the utility model can be made of degradable materials, thereby being beneficial to reducing pollution, reducing harm to human health and protecting environment.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims (10)

1. The utility model provides a four wing specula of self-destruction formula, includes one and goes up expansion piece, one expansion piece down, at least one side expansion piece and position sleeve, go up expansion piece and expansion piece rotatable coupling down and fix a position through expanding positioner, the position sleeve respectively with last expansion piece and side expansion piece rotatable coupling, its characterized in that still includes the first expansion positioner who comprises hook buckle expansion location self-destruction device, and the second location hook that has the second handle on the expansion piece of side and the second location knot meshing of position sleeve both ends top constitute second expansion positioner.

2. The self-destructive four-winged speculum according to claim 1, wherein the second positioning hook has one end fixedly connected to the side-expanding sheet and the other end being a free end at which the second handle is disposed.

3. The self-destructive four-wing speculum according to claim 1, wherein the lateral expansion blade comprises a solid structure without a channel and a hollow structure with a channel, the solid structure has a first handle at the rear end, the hollow structure has a pipe joint at the rear end, and a second handle, a second shaft pin and a lateral wing are sequentially arranged in front of the first handle or the pipe joint, the second handle and the second shaft pin are radially inward, and the second handle and the second shaft pin and the lateral wing integrally extend upwards from the second positioning hook;

the first handle or the pipe joint and the second handle are kneaded in opposite directions to drive the free end of the second positioning hook of the side expansion piece to upwarp above the second positioning buckle so as to enable the left and right side wings to be outwards horizontally opened and inwards folded to be between the upper and lower wings.

4. The self-destructive four-wing speculum according to claim 3, wherein the lateral expansion plate of the hollow structure comprises a channel formed by a channel main body and a channel cover thereon, the inner side of the front end of the channel cover is provided with a positioning protrusion matching with a positioning recess provided on the main body, and the front end of the channel has at least one channel opening.

5. The self-destructive four-wing speculum according to claim 1, wherein the positioning sleeve is provided with a convex protrusion in the center of the outer side thereof, and the positioning sleeve and the upper and lower centering positions of the side wings can be adjusted by shifting the convex protrusion upwards or downwards;

the inboard second shaft round pin that is equipped with in position sleeve both ends is rotatable, can dismantle the connection with the second shaft hole of upper limb rear end, and cover top rear end both sides are equipped with the second location and detain, and the cover both ends outside is equipped with the mount pad, and the seat outside is equipped with one respectively and can receives the axle sleeve of side expansion piece second shaft round pin, and the axle sleeve is open type axle sleeve, the back-off is made to the front end both sides edge part of open type axle sleeve.

6. The self-destructing four-winged speculum 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 first 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 first shaft pin; the pressing handle is also provided with a pressing handle side hole, the tail end of the pressing handle side hole is provided with a positioning buckle for being engaged by the positioning hook, and the center of the rear part of the upper wing is provided with a limiting groove; the lower expansion sheet comprises: the lower wing and the grab handle are integrated with the lower wing and extend downwards from the rear end of the lower wing, and a shaft hole is formed between the lower wing and the grab handle; the grab handle is provided with a grab handle side hole and an inclined pad, and the inclined pad is arranged at the tail end of the grab handle side hole; and the positions of the first shaft pin and the shaft hole can be interchanged.

7. The self-destructive four-wing speculum according to claim 1, wherein the first expansion positioning means is a hook expansion positioning self-destructive means, the hook expansion positioning self-destructive means comprises a positioning seat mounted on a side hole of the handle and a cushion, a self-destructive strip and a positioning rod integrally formed with the positioning seat are arranged in front and at the back of the positioning seat, the positioning rod is provided with a side hole of the handle, a positioning hook capable of engaging with the positioning button at the end of the side hole of the handle is provided on the back of the rod, and at least one of the self-destructive strip and the positioning rod should have elasticity.

8. The self-destructive four-wing speculum of claim 1, further comprising an expandable self-destructive device comprising a tab on the handle and a poke strip on the handle.

9. The self-destructive four-wing speculum according to claim 6, wherein the first shaft pin and/or the second shaft pin has large ends, small middle part, solid middle lower part, and elastic middle upper part with a split piece, and the split piece has an edge diameter slightly larger than that of the split piece, and is generally dumbbell-shaped.

10. The self-destructive four-winged speculum according to claim 1, wherein the said dilating position-destroying device and dilating self-destroying device are also suitable for other double-winged, triple-winged, four-winged or multi-winged vaginal dilators.

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