CN112107287A - Instant-destroying four-wing speculum - Google Patents

Abstract

The invention provides an instant four-wing speculum, which comprises an upper expansion sheet, a lower expansion sheet, at least one side expansion sheet and a positioning sleeve, wherein the upper expansion sheet and the lower expansion sheet are rotatably connected and positioned through an expansion positioning device, and the positioning sleeve is respectively rotatably connected with the upper expansion sheet and the side expansion sheet.

Description

Instant-destroying four-wing speculum

Technical Field

The invention relates to a vaginal dilator of a medical instrument of an obstetrics and gynecology department, in particular to an instant-destroyed four-wing 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, examination and operation are facilitated, the number of parts is large, operation is complicated and time-consuming, 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 America people 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 in clinic, and patients who are particularly obese and have lax vagina and patients who need to perform cervical surgery in clinic, namely ultrahigh frequency electric wave knife (LEEP) surgery, 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 high cost, a lateral wall supporting four-wing speculum includes an upper expansion sheet including an upper wing, a pressing handle and an upper handle, the upper handle is connected with the upper wing through a pin shaft, the upper wing is also provided with a smoke exhaust setting device for placing a smoke exhaust pipe, and a lower expansion sheet including a lower wing and a second handle, the handles are fixed with the second handle through screw nuts, a left expansion sheet and a right expansion sheet are arranged between the upper wing and the lower wing, the rear parts of the left expansion sheet and the right expansion sheet extend leftwards and rightwards to be a left winglet and a right winglet respectively, pins respectively extend forwards and backwards above the winglets, the pins pass through a front positioning groove and a rear groove which are arranged at the rear end of the lower wing, in addition, a left screw hole and a right screw hole which are arranged above the handles are provided for installing spring pressing sheets to press the rear axons, for maintaining the vertical position of the left and right expansion pieces, the complex structure cannot expand the left and right expansion pieces outwards, nor can the left and right expansion pieces be retracted inwards! But only the left and right expansion pieces can be 'horizontal' and 'vertical' 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, 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 an oblique hinge axis 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" originally invented by the state of forest, zhangxingxing, etc. of our country, the Patent of chinese invention is granted with Number 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, this excellent and very practical structure is the invention of our china, comparing with the four-wing speculum invented by the american, the left and right wings both cannot be outward expandable 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 the upper and lower expansion pieces can be effectively expanded to the required position from the upper and lower walls of the vagina according to the size of clinical requirement, the left and right expansion pieces can be effectively expanded to the required position from the side wall of the vagina according to the size of clinical requirement, after the examination or operation is finished, the left and right expansion pieces can be folded inwards to the space between the upper and lower wings, the upper and lower wings can be recovered and closed, the four-wing speculum is put into the vagina and taken out from the vagina just like a double-wing speculum with only the upper and lower wings, and is safe and effective in use.

The four-wing speculum invented by Americans has the advantages that the number of parts is up to 20, the four-wing speculum is complex and heavy, the operation is inconvenient, the manufacturing cost is high, and the defects are many, however, the four-wing speculum invented by Americans, namely the vaginal dilator with double side wings, is only provided with 4 parts (comprising an upper dilating sheet, a lower dilating sheet, a positioning sleeve and a side dilating sheet) in total, the number of the parts is small, the four-wing speculum is easy to operate, economical and practical, and the functions of the four-wing speculum far exceed those of the Americans.

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, toxic smoke can be rapidly eliminated at the position nearest to the operation during the LEEP operation, 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 defect of the above inventions at home and abroad is that the pipe joint actually becomes a handle for controlling the operation of the left and right expansion sheets because only one handle (or pipe joint) is arranged at the rear end of the left and right expansion sheets but no second handle is arranged, and the pipe joint can not raise the second positioning hook only by the pipe joint or the pipe joint in clinical operation, so that the pipe joint is difficult to enter the second positioning buckle, even if the second positioning hook is forced to enter the second positioning buckle, the second positioning hook is difficult to be easily separated from the positioning buckle and lose practical value, the invention adds the second handle above the second positioning hook, the result is completely different, a doctor can raise the second positioning hook to be easily separated from or enter the second positioning buckle by kneading the pipe joint and the second handle, the operation is convenient and the adjustment is free, which has substantial significance for fundamental change and progress of the original defects of the known technology, thereby having practicability.

In addition, the side expansion piece insert of the prior art is of a solid structure, the installation and the rotation are quite inconvenient, if the insert is designed into an open joint shaft structure at present, the insert is rich in elasticity, can be lightly and quickly installed in a joint cavity, and the edge parts of two sides of the front end of the joint cavity are made into reverse buckles, so that the joint shaft can be effectively prevented from slipping off during use, and the rotation is light, convenient and practical during clinical use.

The other defect of the prior art is that the second positioning buckle is arranged on the positioning seat, and the arrangement results in that when the left and right side wings are expanded to the maximum gear, the expanding distance of the left and right side wings is 58mm, the invention arranges the position of the second positioning buckle on the positioning sleeve, so that when the left and right side wings are expanded to the maximum gear, the expanding distance of the left and right side wings is more than 88mm, which is increased by 1.52 times compared with the prior art, which is of extraordinary clinical significance, greatly increases the surgical field and the surgical space, can meet the surgical requirements of other patients with cervical diseases such as ultrahigh frequency electric wave knife (LEEP knife) surgery, achieves the effect of fundamental improvement, and proves that the positioning buckle has obvious technical effects.

On the other hand, media reports that lawless persons are recycled and reused, so that the invention was invented by mr. Zhang Xingxing in 2004 in China as an 'instant disposable aseptic vaginal dilator' (the patent name is an instant painless and noiseless disposable vaginal dilator, the patent authorization number is 200420116743.7), the principle is that an 'instant belt' is arranged at the non-stressed part of a dilator handle or a press handle, the 'instant belt' is broken after use to realize destruction, and the aim of non-reuse is achieved.

Disclosure of Invention

The invention aims to provide an instant four-wing speculum which can overcome the defects of the prior art.

In order to achieve the purpose, the invention provides an instant four-wing speculum which comprises an upper expansion sheet, a lower expansion sheet, at least one side expansion sheet and a positioning sleeve, wherein the upper expansion sheet and the lower expansion sheet are rotatably connected and positioned through an expansion positioning device, and the positioning sleeve is respectively rotatably connected with the upper expansion sheet and the side expansion sheet.

Preferably, 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.

Preferably, the side expansion piece comprises a hollow structure with a channel and a solid structure without a channel, the rear end of the hollow structure is a pipe joint, the rear end of the solid structure is a first handle, and a second positioning hook which is radially inward, a second handle which integrally extends upwards with the second positioning hook, an opening joint shaft and a side wing are sequentially arranged in front of the pipe joint or the first handle.

Preferably, the channel is composed of a channel body and a channel cover thereon, the edge of the channel body can be provided with a groove for inserting the channel cover, the groove is provided with a positioning projection for receiving the inner side of the front end of the channel cover, and the front end of the channel body is provided with at least more than one channel opening.

Preferably, the first handle or the pipe joint and the second handle are pinched in opposite directions to enable the second positioning hook to be tilted upwards to move and fix on the second positioning buckle, so that the left and right side wings are horizontally opened outwards and retracted inwards to be between the upper and lower wings.

Preferably, the positioning sleeve is provided with a convex protrusion in the middle of the outer side thereof, and the positioning sleeve and the side wings can be adjusted to stay at the upper and lower positions by shifting the convex protrusion upwards or downwards. The inner sides of two ends of the 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, a second positioning buckle corresponding to the second positioning hook is arranged above the sleeve, the outer sides of two ends of the sleeve are respectively provided with a mounting seat, and the outer side of the seat is provided with a joint cavity capable of receiving and folding a side expansion piece opening joint shaft between the upper wings and the lower wings so as to enable the side wings to pivot relative to the mounting seats.

Preferably, the second positioning hook and the open joint shaft should have elasticity.

Preferably, the expansion distance between the left expansion piece and the right expansion piece in the maximum gear expansion state is larger than 88 mm.

Preferably, the hollow side expansion piece is a channel formed by a channel main body and a channel cover on the channel main body, the edge of the channel main body can be provided with a groove for being embedded into the channel cover, and the front end of the channel main body is provided with at least more than one channel opening.

Preferably, the first expansion positioning device is a spiral expansion positioning and destroying device, the spiral expansion positioning and destroying device comprises a positioning seat arranged on a side hole of the grab handle, self-destroying strips and a screw rod are arranged on the positioning seat in front and back, a screw rod front dome capable of accommodating the self-destroying strips is arranged at the lower part of the screw rod, and a handle hole is penetrated on the screw rod and is screwed and positioned with the screw cap.

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 grab handle.

Preferably, at least one of the self-destructing strip and the screw should be resilient.

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

preferably, the lower expansion panel comprises: the lower wing and the grab handle which is integrated with the lower wing and extends downwards from the rear end of the lower wing, 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 side hole of the grab handle is arranged to be a single layer or a double layer, the double layer is that the bottom layer is larger than the upper layer, the shape of the bottom layer is consistent with that of the positioning seat, and a convex protrusion for buckling the head crown is arranged in front of the bottom layer.

Preferably, when the nut and the screw rod of the spiral expanding positioning destruction device are matched and rotated to the limit, the opening angle of the upper wing and the lower wing can reach more than 40 degrees.

Preferably, the side expansion piece and the positioning sleeve are detachably and rotatably connected with the upper wing.

Preferably, the two side edge parts of the front end of the joint cavity are made into reverse buckles.

Preferably, the two ends of the shaft pin are slightly larger, the middle of the shaft pin is slightly smaller, the middle lower part of the shaft pin is solid, the middle upper part of the shaft pin is provided with a split piece, the diameter of the edge of the split piece is slightly larger than that of the split piece, and the whole shaft pin is dumbbell-shaped.

The side expansion sheet with the solid structure is particularly suitable for manufacturing examination type, and is particularly suitable for non-operative precancerous lesion screening or examination and sampling of patients with vaginal wall mucosa prolapse, microwave, laser and other physical treatments.

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 cervical carcinoma and precancerous lesion patients, and the smoke generated by the ultrahigh frequency electric wave knife operation can be directly discharged out of the body by connecting the pipe joint with the negative pressure device, so that the side expansion sheet 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 kneaded with the second handle, the second positioning hook can be enabled to be tilted upwards to move on the second positioning buckle above the positioning sleeve, so that the distance between the outward horizontal opening of the left side wing and the outward horizontal opening of the right side wing can reach more than 88mm or the inward folding can be realized between the upper wing and the lower wing; secondly, when the pipe joint is not externally connected with a negative pressure device, the expander can be used for inspection; 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.

When the instant four-wing speculum is used, the left wing and the right wing are folded between the upper wing and the lower wing and are placed into a vagina in a closed state, the grab handle and the press handle are controlled to open the upper wing and the lower wing to a required visual field, the visual field range is kept through the first expansion fixing structure, then the pipe joints at the rear ends of the left wing and the right wing or the first handle and the second handle are controlled oppositely, the second positioning hook is upwards tilted along with the traction of the second handle, the instant four-wing speculum is very convenient to suspend above and move and mesh with the second positioning hook, the left wing and the right wing are expanded and fixed according to clinical requirements, and at the moment, the vagina and the cervix can be observed and checked through the expanded visual fields of the upper wing, the lower wing, the left wing and the right wing, or the operation, the microwave treatment and the like can be carried out.

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 inner side or front end of the left and/or right wing, the power supply wires can be LED out through the channels in the wings to the power supply, so that the examination or operation site can be performed under the illumination condition.

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 pipe joint or the first handle and the second handle are kneaded oppositely, the second expansion positioning device on the meshing side expansion sheet and the positioning sleeve can be released, the left wing and the right wing are contained in the upper wing and the lower wing, the first expansion positioning device is removed, 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 invention has the following beneficial effects:

1. the second positioning buckle is arranged on the positioning sleeve, the distance between the inner diameters of the left wing and the right wing which are opened can reach more than 88mm through the change of the design, and is increased by 1.52 times compared with the 58mm of the second positioning buckle arranged on the mounting seat in the prior art, so that the obvious progress is proved, and the effectiveness of medical equipment is greatly improved clinically in seeing a doctor, sampling, operation, physical therapy and the like.

2. The second handle is arranged on the second positioning hook, so that the serious defects that the rear end of the four-wing side expansion piece in the prior art is only provided with one handle and cannot be adjusted and separated are overcome, the ingenious design of the second handle is added above the second positioning hook, and when a doctor clinically uses the medical wing, the second handle above the second positioning hook can drive the second positioning hook to upwarp as long as the first handle or a pipe joint and the second handle are kneaded in opposite directions, so that the second positioning hook is suspended above the second positioning buckle to move, fix or separate, and then the left and right wings can be horizontally opened outwards and retracted inwards between the upper wing and the lower wing.

3. The first expansion positioning device is designed into a hook expansion positioning self-destruction device, the operation process is completely consistent with that of a non-self-destruction expander, but the self-destruction is realized at the same time, and the opening angles of the two wings reach more than 40 degrees when the upper wing and the lower wing are expanded, so that the visual field is sufficient, the cross infection of iatrogenic diseases is avoided, and the functions of protecting the health of people and protecting the safety and effectiveness of medical instruments are achieved.

4. The invention also makes the side expansion piece opening joint shaft into the opening joint shaft with elasticity, thus being very beneficial to installing the side expansion piece opening joint shaft in the joint cavity, having good practicability in clinical use and being easy and flexible to rotate.

5. The invention makes the edge parts of the two sides of the front end of the joint cavity on the positioning seat into reverse buckles, so that the open joint shaft cannot slip off when in use, thereby being safe and reliable.

Drawings

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

FIG. 2 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. 3 is a schematic view of the closed configuration of FIG. 1 in use and after destruction;

FIG. 4 is a schematic view of the structure of the expanding sheet of the instant four-wing speculum;

FIG. 5 is a schematic view of the structure of the lower expansion plate of the instant four-wing speculum;

FIG. 6 is a top view of the positioning sleeve of the instant four-wing speculum;

FIG. 7 is a rear view of the positioning sleeve of the instant four-wing speculum;

FIG. 8 is a schematic view of the solid structure of the right and left side expansion plates of the instant four-wing speculum;

FIG. 9 is a schematic view of the hollow structure of the right and left side expansion pieces of the instant four-wing speculum;

FIG. 10 is a schematic view showing the expanded state of the instant four-wing speculum with the distance between the left and right wings being larger than 88 mm;

FIG. 11 is a schematic view of the self-destruction device with spiral expansion positioning of the instant four-wing speculum.

Detailed Description

Referring to the attached drawings 1-5, the destroyed 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, 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 also arranged in front of the shaft pins 01-3, the second shaft hole 01-4 is used for rotatably connecting a second shaft pin 03-2, and a pressing handle hole 01-8 is also arranged on the pressing handle 01-2; 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 convex protrusion 02-7 is arranged in front of the grab handle side hole 02-8, 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, and the two sides of the rear ends of the upper wing 01-1 and the lower wing 02-1 are respectively connected by a 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 fig. 1-3 and 11, a first expansion positioning device for fixing the opened state of the upper wing 01-1 and the lower wing 02-1 is a spiral expansion positioning destroying device 09, which skillfully combines the positioning function during use and the destroying function after use, and 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 a screw 09-14 and a self-destroying strip 09-16 arranged in front of the screw 09-14, the self-destroying strip 09-16 is arranged at the front dome 09-13 of the screw, the screw 09-14 with threads passes through a handle hole 01-8 and a screw cap 09-15 to be screwed, and a doctor can expand according to the size of the inspected field or the operation range, And (4) adjusting and fixing.

With continued reference to fig. 11, the destruct strip 09-16 is a shorter, smaller, overall slightly forward sloping strip with the front abutting the front wall of the handle bypass hole 02-8 and the rear being the screw forward dome 09-13, with the positioning socket 09-12 being more securely retained in the handle bypass hole 02-8 and the angled cushion 02-9 due to the forward and rearward tension of the destruct strip 09-16 and the screw 09-14. When a doctor pushes the push handle 09-18 or the screw cap 09-15 down after use, the self-destruction strip 09-16 is subjected to the force of the push handle 09-18 or the screw cap 09-15 and the screw 09-14, the abdomen of the self-destruction strip 09-16 is instantly broken due to the extrusion of the front wall of the side hole 02-8 of the handle, and the self-destruction strip 09-16 is instantly broken due to the impact force generated when the positioning seat 09-12 slips through the lever action of the positioning seat 09-12 and the inclined cushion 02-9 of the screw 09-14, so that the fracture of the self-destruction strip 09-16 is almost performed simultaneously with the slipping of the positioning seat 09-12 from the side hole 02-8 of the handle and the inclined cushion 02-9, and due to the slipping of the positioning seat 09-12 and the dislocation of the screw 09-14, the screw 09-14 cannot be screwed, expanded and positioned with the screw cap 09-15, all this happens and is done in a moment, and the broken part of the self-destructive strip 09-16 is almost at the root, shaped like a "fracture", so that even if the self-destructive strip 09-16 is broken, it still connects with the positioning seat 09-12 and does not fall down separately; after the screw rods 09-14 are out of position, the screw rods 09-14 are still connected with the positioning seats 09-12 and cannot fall down independently, so that the dilator is an integral dilator when a doctor takes out the dilator, just like a disposable vaginal dilator without an instant destroying device, and therefore, the operation is simple, labor-saving, convenient, practical, safe and effective.

With continuing reference to fig. 1-3 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 located in front of the handle side hole 02-8, the self-destructive strip 09-16 with the crown 09-17 is more 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 "fracture" 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. 1-5, 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 advantages that the visual field and the space of the whole dilator are enlarged, the opening angle of the upper wing and the lower wing can reach more than 40 degrees, and the dilator 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, the vaginal orifice can be effectively protected from being excessively dilated, and the clinical use is more beneficial to diagnosis and operation, and is safer and more effective.

With continued reference to FIG. 1, when the upper wing 01-1 and lower wing 02-1 and left and right wings 04-10 are in the closed position before clinical use, and when clinical use is initiated, the physician places the dilator into the vagina with the upper wing 01-1 and lower wing 02-1 and left and right wings 04-10 still in the closed position, it can be seen that the self-destructive strip 09-16 and crown 09-17 are intact.

With continued reference to FIG. 2, when in clinical use, the doctor presses down the press handle 01-2, the upper wing 01-1 and the lower wing 02-1 are expanded to the required visual field, the screw cap 09-15 is rotated to enter the screw 09-14 to be fixed, the left wing 04-10 and the right wing 04-10 are also expanded to the required positions, and the doctor starts to examine, diagnose or perform an operation, wherein the self-destruction strip 09-16 and the crown 09-17 are still intact.

Referring to fig. 3, according to a preferred embodiment, when the clinical operation is finished, the doctor pinches the operation type pipe joint 04-8 and the second handle 04-5, and according to another preferred embodiment, the doctor pinches the examination type first wrench 04-8 and the second handle 04-5, and the second handle 04-5 pulls the positioning hook and lightly disengages from the second positioning buckle 03-5 by using the elastic action of the positioning hook, and easily retracts the lateral wing 04-10 between the upper wing and the lower wing; the doctor withdraws the screw cap 09-15 backwards, closes the upper wing and the lower wing, pushes the push handle 09-18 or the screw cap 09-15 downwards at the moment, and the self-destruction strip 09-16 or the crown 09-17 is extruded by the front wall which is slightly protruded backwards from the middle part of the upper layer of the hole 02-8 beside the handle due to the push force and the elastic acting force of the screw 09-14 along with the push handle 09-18 or along with the screw cap 09-15, so that the self-destruction strip 09-16 or the crown 09-17 can be broken and can not be restored immediately, and the doctor takes out the speculum.

Referring to fig. 4-5, 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 cushion 02-9.

According to another embodiment of the invention, 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 which is 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, thereby not only being beautiful and practical, but also ensuring safe and effective 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 which is thick at the front and thin at the 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 09-14 can be out of position under the action of the inclined pad 02-9 by the transmission of the screw 09-14 under the action of the forward pushing force of the pushing handle 09-18 or the screw cap 09-15, and can, 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. 6-7, according to a preferred embodiment of the present invention, the positioning sleeve 03 is connected to the second shaft hole 01-4 at the rear end of the upper wing by the second shaft pin 03-2 at the inner side of the two ends of the sleeve 03-1 and can rotate up and down, the middle of the inner side of the positioning sleeve is provided with the 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 joint cavity 03-6 capable of receiving the open joint shaft 04-3 folded between the upper wing and the lower wing, and the two side edges or parts of the front end of the joint cavity 03-6 are made into the back-off 03-9 to ensure that the open joint shaft cannot slip off and is safe; 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.

Referring to fig. 6-7, preferably, a sleeve protrusion 03-8 is disposed at the center of the front of the positioning sleeve 03, and a sleeve groove 03-7 is disposed at the upper and lower portions thereof, so that the positioning sleeve 03-1 can drive the side expansion piece 04 to move up and down by holding the sleeve groove 03-7 or the sleeve protrusion 03-8.

Referring to fig. 8, in accordance with an embodiment of the present invention, there is no channel in the side expansion sheet, and the side expansion sheet 04 in 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 thereon 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. 9, according to another embodiment of the present invention, the side expansion piece 04 has a channel, the side expansion piece 04 of this hollow structure has a channel 04-6 formed by a main body 04-1 and a channel cover 04-2 thereon, the channel cover 04-2 has a positioning protrusion 04-9 on the inner side of the front end, 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, and the following steps are performed 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 precancerous lesions requiring ultrahigh frequency electric wave knife surgery (also called LEEP knife surgery and the like), has a wide surgical space, is comprehensively exposed, has large and clear surgical fields, can simultaneously eliminate toxic smoke in the surgery, and is also used for washing the vagina and the like.

Continuing to refer to fig. 9, the other side expansion piece 04 is advantageous for production and assembly by the split design of the main body 04-1 and the channel cover 04-2, and is also advantageous for reducing the volume and cost of the mold, and moreover, the channel cover 04-2 can be opened by an installer, so that the required objects can be accurately installed in place under direct vision, and the design is ingenious and practical, such as the need for installing a lighting lamp, a camera and a smoke exhaust filter device, laying a power line, and the like; moreover, the side expansion sheet 04 with the hollow structure can be used for examination such as cervical cancer pre-screening without an external smoke exhaust negative pressure device; therefore, the side expansion piece 04 is skillfully and scientifically designed, reasonable and advanced.

With continued reference to fig. 8-9, the joint shaft 04-3 is designed to be open-ended and resilient, allowing it to be easily installed into the joint cavity, and to be flexible in rotation, convenient and practical in operation when in use. 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. 2 and 10-11, the present invention has the first and second positioning devices, so that the doctor can adjust the upper, lower, left and right wings to effectively expand the upper, lower, left and right walls of the vagina to the desired positions according to the needs of the clinical patient, when the maximum gear is reached, the opening angle between the upper and lower wings can reach >40 °, the distance between the left and right wings can reach >88mm, after the examination or operation, the left and right wings 04-10 are first retracted inwards into the upper and lower wings (01-1, 02-1), and finally the upper and lower wings (01-1, 02-1) are retracted and closed, and the dilator is destroyed in the operation process, thereby achieving two purposes.

According to a preferred embodiment, the shaft pins are large at two ends, small in the middle, solid in the middle lower part, elastic in the middle upper part due to the fact that the middle upper part is provided with the open piece, the diameter of the edge of the open piece is slightly larger than that of the open piece, the whole shaft pin structure is similar to a dumbbell-shaped shaft pin structure, assembly is easy, rotation is easy and convenient during clinical use, flexibility and freedom are achieved, and working efficiency of doctors is improved.

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 teachings of this invention without undue experimentation. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims (10)

1. The utility model provides a four wings specula of formula of ruining promptly, includes one and expands 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 spiral 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 of position sleeve both ends top detain mutually the meshing and constitute second expansion positioner.

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

3. The four-wing instant speculum according to claim 1, wherein the lateral expansion blade comprises a hollow structure with a channel and a solid structure without a channel, the rear end of the hollow structure is a pipe joint, the rear end of the solid structure is a first handle, and a second positioning hook which is radially inward and a second handle which integrally extends upward with the second positioning hook, an open joint shaft and a lateral wing are sequentially arranged in front of the pipe joint or the first handle.

4. The four-wing instant speculum of claim 3, wherein the channel is comprised of a channel body and a channel cover thereon, the channel body having a groove at its edge for receiving the channel cover, the groove having a locating projection for receiving the inside of the front end of the channel cover, the front end of the channel body having at least one channel opening.

5. The instant four-wing speculum as in claim 1, wherein the positioning sleeve has a protrusion in the center of its outer side, and the positioning sleeve and the wings can be adjusted to stay in the upper and lower positions by shifting the protrusion upward or downward. The inner sides of two ends of the sleeve are provided with a second shaft pin which is rotatably and detachably connected with a second shaft hole at the rear end of the upper wing, a second positioning buckle corresponding to the second positioning hook is arranged above the sleeve, the outer sides of two ends of the sleeve are respectively provided with a mounting seat, the outer side of the seat is provided with a joint cavity capable of receiving and folding a side expansion piece opening joint shaft between the upper wing and the lower wing so as to enable the side wing to pivot relative to the mounting seat, the second positioning hook and the opening joint shaft have elasticity, and the edge parts of two sides of the front end of the joint cavity are made into reverse buckles.

6. The four-wing instant speculum of claim 1, wherein the first expansion positioning means is a spiral expansion positioning instant speculum, and the spiral expansion positioning instant speculum comprises a positioning seat mounted on the side hole of the handle, a self-destruction strip and a screw rod are arranged on the positioning seat in front of and behind the positioning seat, the lower part of the screw rod is provided with a screw rod front dome for placing the self-destruction strip, the screw rod is provided with a handle hole for screwing and positioning with a screw cap, and at least one of the self-destruction strip and the screw rod should have elasticity.

7. The four-wing instant speculum according to claim 3, wherein the self-destruction strip has a crown extending forward from the top thereof and shaped like a 7-letter transverse head, and the crown is engaged with the protrusion located in front of the side hole of the handle.

8. The instant 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 pressing handle hole is arranged on the pressing handle, a limiting groove is arranged in the center of the rear part of the upper wing and used for limiting the limiting position of the positioning sleeve and the side wing in downward rotation, 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.

9. The four-wing instant speculum of claim 8, wherein the handle side hole is formed as a single layer or double layers, the double layers are such that the bottom layer is larger than the upper layer, the shape of the bottom layer is consistent with that of the positioning seat, and a protrusion for buckling the crown is arranged in front of the bottom layer.

10. The instant four-wing speculum according to claim 1, wherein the shaft pins are large at both ends, small in the middle, solid at the middle-lower part, and elastic 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 speculum looks like a dumbbell.

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