CN112107287B

CN112107287B - Quick-destroying four-wing speculum

Info

Publication number: CN112107287B
Application number: CN202011021641.7A
Authority: CN
Inventors: 林静
Original assignee: Jiangsu Aobojin Pharmaceutical Technology Co ltd
Current assignee: Jiangsu Aobojin Pharmaceutical Technology Co ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2024-08-27
Anticipated expiration: 2040-09-25
Also published as: CN112107287A

Abstract

The invention provides a disposable four wing speculum, comprising an upper expansion piece, a lower expansion piece, at least one side expansion piece, and a positioning sleeve. The upper expansion piece and the lower expansion piece are rotatably connected and positioned by an expansion positioning device. The positioning sleeve is rotatably connected to the upper expansion piece and the side expansion piece, respectively. The invention is characterized in that it further comprises a first expansion positioning device composed of a spiral expansion positioning self destruct device, and a second positioning hook with a second handle on the side expansion piece is engaged with the second positioning buckle above both ends of the positioning sleeve to form a second expansion positioning device. The structure of the invention is simple, the operation is convenient, the manufacturing is easy, the economy is practical, and the use is safe and effective.

Description

Quick-destroying four-wing speculum

Technical Field

The invention relates to a vaginal dilator of medical equipment for obstetrics and gynecology, in particular to a disposable four-wing speculum.

Background

The vaginal dilator, also called vaginal speculum, etc. is a common examination and operation instrument for gynaecology. For exposing an examination site or operative site. Through domestic and foreign literature retrieval, the U.S. patent office records that the vaginal dilator with the spiral fixing structure invented by U.S. John L.Marco in 1949 has the advantages that the vaginal dilator with two wings has at least 12 parts and 8 parts for operation, the opening angle of the upper wing and the lower wing is larger than 40 degrees during expansion, the vagina can be effectively expanded, the cervix and the rear fornix are exposed, the examination and the operation are facilitated, the parts are more, the operation is complicated and time-consuming, the manufacturing cost is high, and the vaginal dilator is unsuitable for manufacturing disposable use, and the defect is overcome; according to the records of Chinese patent office, the patent grant number 891083928 of China by the teacher of Wenzhou medical science university Lin Jing (which is short for double-wing vaginal dilator) forms a vaginal dilator with only 2 parts no matter examination or operation, and the vaginal dilator has all the advantages of American invention in function, and has the advantages of few parts, convenient operation, high speed, low cost, and being particularly suitable for manufacturing disposable use.

The double-wing vaginal dilator comprises an upper wing and a lower wing which can be opened and closed to form 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, checks and operates through the opened visual field of the upper wing and the lower wing. With the advent and proliferation of new diseases clinically, and with patients suffering from particular obesity and vaginal relaxation, and with patients who are required to perform cervical surgery, namely, ultrahigh frequency electric wave knife (also called LEEP knife) surgery clinically, double-wing vaginal dilators with only upper and lower wings are used, and when the upper and lower wings are opened, the vaginal wall between the upper and lower wings is backfilled into the opened area, thereby reducing the exposure range and causing difficulty in examination or operation. If the opening height of the upper wing and the lower wing is increased, the backfilling will be increased in addition to the pain to the patient, so that it is not a good countermeasure. On the other hand, in the gynaecology and obstetrics field, as cervical cancer patients get more and more in recent years, the use of ultra-high frequency electric wave knife generates bad and bad smoke which stings on the throat belt during operation, and affects the health of doctor and patient, so the vaginal dilator with smoke discharging device is needed clinically.

Along with the continuous progress of technology, more and more electronic products are applied to medical instruments, and the vaginal dilator is required to have the functions of illumination, image pickup and the like.

For example, U.S. Patent Number:6,024,696 discloses a side wall supporting speculum, namely a four-wing vaginal dilator, which has more than twenty parts in total, complex structure, complex operation and high cost, wherein the four-wing vaginal speculum supported by one side wall comprises an upper expansion piece comprising an upper wing, a pressing handle and an upper grab handle, the upper grab handle is connected with the upper wing through a pin shaft, the upper wing is also provided with a smoke discharging setting device for placing a smoke discharging pipe, and a lower expansion piece comprising a lower wing and a second grab handle, the grab handle and the second grab handle are fixed by screw nuts, a left expansion piece and a right expansion piece are arranged between the upper wing and the lower wing, the rear part of the left expansion piece and the right expansion piece extend leftwards and rightwards to be a winglet respectively, pins extend forwards and backwards above the winglet, the pins penetrate through a front positioning groove and a rear positioning groove arranged at the rear end of the lower wing, and a left shaft and a right shaft projection above the grab handle are additionally provided with screw holes for installing spring pressing the left and right expansion piece, so that the left expansion piece and the right expansion piece can be kept at the position when the left expansion piece and right expansion piece are erected, the defect is that the structure can not lead the left expansion piece and right expansion piece to be outwards or can not lead the expansion piece to be recycled inwards or inwards! But only the left and right expansion pieces can be used for 'lying down' and 'standing up' to support the lateral wall of the vagina, so that the result is that the operation space is small, the operation field is insufficient, and the practical value is lacking.

In addition, international application PCT/AU98/00737 discloses a "speculum", which proposes a solution of: a speculum includes a body having two expansion fingers 14A,14B connected at their proximal ends to the body, another expansion finger 28 extending between the fingers and secured to the body, an actuator pivotally connected to the body, the actuator being formed with an opposite expansion finger 70 of the securing finger 28 between the fingers 14A,14B, which upon pivoting of the actuator, begins to pivot away from the remaining fingers, upon rotation of the actuator through an angle, begins to contact the interior of the fingers 14 near their proximal ends, causing the distal ends of those fingers to move apart from one another, the fingers 14A,14B articulating about the tilt hinge axis such that when the actuator abuts them, they move in a combined upward and sideways motion. The utility model has the defects that the structure is too complex, the parts are too many, the operation is difficult, and the side expansion piece is arranged outside the upper wing and the lower wing and can not be recovered into the upper wing and the lower wing, so that the pain is brought to the patient when the utility model enters the vagina.

In 2010, the China's intellectual property office records the ' vaginal dilator with double wings ' of the first invention of China Lin Jing, zhang Xingxing, etc., chinese Patent application Number ZL201010227014.9, it is first proposed and solved at home and abroad that the upper, lower, left and right wings of the dilator can be outwards expanded and can be inwards folded, and the left and right wings can be folded into the upper and lower wings, the excellent and very practical structure is that our China first invention, compared with the American four-wing speculum, the left and right wings cannot be outwards expanded or inwards folded, for example, the American four-wing speculum Patent Number:6,024,696 the left and right wings can only be "standing" and "lying down" but cannot expand outwards and retract inwards-! The four-wing speculum of our Chinese invention has simple structure and convenient operation, especially the upper and lower expansion pieces can be effectively expanded to the required positions to the upper and lower walls of the vagina according to the size of clinical requirements, the left and right expansion pieces can be effectively expanded to the required positions to the side walls of the vagina according to the size of clinical requirements, after the examination or operation is finished, the left and right expansion pieces can be inwards retracted between the upper and lower wings, the upper and lower wings are also retracted and closed, and the four-wing speculum is just like a double-wing speculum with the upper and lower wings, which is put into and taken out from the vagina, and is safe and effective to use.

The four-wing speculum invented by Americans has the advantages of 20 parts, complexity, heaviness, inconvenient operation, high manufacturing cost and many defects, and the four-wing speculum invented by us, namely the vaginal dilator with double wings, has 4 parts (comprising an upper expansion piece, a lower expansion piece, a positioning sleeve and a side expansion piece) in total, has fewer parts, is simple to operate, is economical and practical, and has functions far exceeding those of the four-wing speculum invented by Americans.

In 2010, china's intellectual property office records ' vaginal dilator with upper and lower wings with additional wings ' of the first inventions of China Zhang Xingxing, lin Jing, etc., chinese patent application number ZL201010227012.X is first proposed at home and abroad and solves the problem that both upper and lower additional wings can be arranged on the inner surfaces of the upper and lower wings, thereby rapidly removing toxic smoke at the nearest part to the operation in LEEP operation, being beneficial to protecting the health of medical staff and patients and relieving the pollution of operating rooms, and simultaneously realizing the functions of illumination, shooting, etc.

The two inventions also apply for international patents such as the United states and Europe, and are granted by the U.S. patent office, the patent number of which is U.S. Pat. No.8,876,711B 2EP and the European patent office, and the patent number of which is EP 2586 481B 1.

However, the common defect of the invention is that the rear ends of the left and right expansion pieces are provided with one handle (or pipe joint) and no second handle, the pipe joint is actually a handle for controlling the left and right expansion pieces to work, and the fact that the second positioning hooks cannot be tilted up only by the pipe joint or the pipe joint is found in clinical operation, so that the second positioning hooks are difficult to enter the second positioning buckles, and even if the second positioning hooks are forced to enter the second positioning buckles, the second positioning hooks are difficult to be easily pulled out from the positioning buckles to lose practical value, the invention adds the second handle above the second positioning hooks, the result is completely different, and doctors can easily detach or enter the second positioning buckles by twisting the pipe joint and the second handle, and the invention is convenient to operate and free to adjust, and has practical significance for the fundamental change and progress of the original defects of the prior art, so that the invention has practicability.

In addition, the side expansion piece insert of the known technology is of a solid structure, the installation and rotation are quite inconvenient, the insert is designed into an open joint shaft structure and is rich in elasticity, the insert can be installed in a joint cavity lightly and rapidly, the edge parts of the two sides of the front end of the joint cavity are made into inverted buckles, the joint shaft can be effectively prevented from slipping when the insert is used, and the insert is light, convenient and practical to rotate when in clinical use.

Another disadvantage of the known art is that the second positioning buckle is arranged on the positioning seat, and as a result of the arrangement, when the left and right side wings are expanded to the maximum level, the spacing between the left and right side wings is 58mm, and the position of the second positioning buckle is arranged on the positioning sleeve, so that when the left and right side wings are expanded to the maximum level, the spacing between the left wing and the right wing is more than 88mm, which is increased by 1.52 times compared with the prior art, which is remarkable in clinical significance, greatly increases the operation field and the operation space, can meet the operation requirements of patients with other cervical diseases such as ultra-high frequency electric wave knife (LEEP knife) operation, achieves the effect of fundamental progress, and proves that the device has remarkable technical effect.

On the other hand, there is a media report that the lawless persons are recycled, so that the invention of a disposable sterile vaginal dilator for immediate destruction (patent name is a disposable sterile vaginal dilator for immediate destruction without pain and noise, patent authorization number is 200420116743.7) is initiated in 2004 by Lin Jing and Zhang Xingxing of China, the principle is that the shape is destroyed by setting an immediate destruction belt at the non-stress part of a dilator handle or a pressing handle after use, and the purpose of incapacity of reuse is achieved, however, in practical application, the defect that the immediate destruction belt is easily broken during transportation when the immediate destruction belt is deep, and the defect that the immediate destruction belt is difficult to break when the immediate destruction belt is shallow is provided, so that the vaginal dilator needs to be further researched, and the defect is overcome, so that the vaginal dilator is better and more perfect.

Disclosure of Invention

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

In order to achieve the above purpose, the technical scheme of the invention provides the quick-destruction four-wing speculum which comprises an upper expansion piece, a lower expansion piece, at least one side expansion piece and a positioning sleeve, wherein the upper expansion piece and the lower expansion piece are rotatably connected and positioned through an expansion positioning device, and the positioning sleeve is rotatably connected with the upper expansion piece and the side expansion piece respectively; the positioning sleeve is provided with a convex protrusion in the middle of the outer side of the positioning sleeve, the convex protrusion is shifted upwards or downwards, the positioning sleeve can be adjusted to be positioned along with the upper and lower sides of the wing wings, the inner sides of the two ends of the sleeve are provided with second shaft pins which are rotatably and detachably connected with the 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 the two ends of the sleeve are respectively provided with a mounting seat, the outer sides of the seats are provided with a joint cavity which can receive the open joint shaft of the side expansion piece which is folded between the upper wing and the lower wing, so that the wing wings pivot relative to the mounting seats, the second positioning hook and the open joint shaft have elasticity, and the edge parts of the two sides of the front end of the joint cavity are made into inverted buckles; 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 a handle, self-destroying strips and a screw rod are arranged in front of and behind the positioning seat, a front dome of the screw rod capable of being provided with the self-destroying strips is arranged at the lower part of the screw rod, a pressing handle hole is penetrated on the screw rod and is screwed with a screw cap for positioning, and at least one of the self-destroying strips and the screw rod has elasticity.

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 sheet 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 inwards, a second handle which is integrally and upwards extended 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 consists of a channel body and a channel cover thereon, the edge of the channel body may have a slot for embedding the channel cover, the slot 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.

Preferably, the first handle or the pipe joint is mutually clamped with the second handle, so that the second positioning hook can be tilted upwards to move and fix on the second positioning buckle, and the left side wing and the right side wing can be horizontally opened outwards and folded inwards between the upper wing and the lower wing.

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

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

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

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

Preferably, the lower expansion sheet comprises: the lower wing and with lower wing an organic whole and from the grab handle of lower wing rear end downwardly extending, be equipped with the shaft hole between lower wing and pressing the handle, be equipped with grab handle side hole and sloping pad on the grab handle, the sloping pad is established at the end in grab handle side hole.

Preferably, the side hole of the grab handle is arranged as 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 the front of the side hole is provided with a convex protrusion for buckling the head crown.

Preferably, when the screw expansion positioning is realized and the matching rotation of the screw cap and the screw rod of the destroying device reaches the limit, the opening angle of the upper wing and the lower wing can reach more than 40 degrees.

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

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

Preferably, the shaft pins are slightly larger at two ends and slightly smaller in the middle, the middle and the lower parts are solid, the middle and the upper parts are split, the diameter of the edge of each split is slightly larger than that of each split, and the whole dumbbell-like structure is formed.

The side expansion sheet with the solid structure is particularly suitable for manufacturing inspection, and is particularly suitable for non-operative precancerous lesion screening or physical treatment such as inspection and sampling of patients with vaginal wall mucosa prolapse, microwaves, laser and the like.

The side expansion piece with the channel hollow structure is particularly suitable for manufacturing operations, is used for operations of ultra-high frequency electric wave knives and the like for cervical cancer and precancerous lesion patients, and is convenient and practical, and smoke generated by the ultra-high frequency electric wave knife operations can be directly connected with a negative pressure device through a pipe joint to be discharged outside.

The pipe joint has at least three functions, namely, the pipe joint plays a role of a first handle: when the pipe joint is pinched with the second handle, the second positioning hook can be tilted upwards to move on the second positioning buckle above the positioning sleeve, so that the distance between the left and right side wings which are horizontally opened outwards can reach more than 88mm or can be folded inwards between the upper and lower wings; 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 pipe joint can be used for operation smoke discharging and the like.

When the disposable four-wing speculum is used, the left wing and the right wing are put into the vagina in a closed state between the upper wing and the lower wing, the grab handle and the pressing handle are controlled, the upper wing and the lower wing are opened to the required vision, the vision range is kept through the first expansion fixing structure, then the pipe joint at the rear ends of the left wing and the right wing or the first handle and the second handle are controlled in opposite directions, the second positioning hook is lifted up along with the traction of the second handle, so that the left wing and the right wing can be expanded and fixed according to clinical requirements, and the vagina and the cervix can be inspected or the operation, the microwave treatment and the like can be performed through the vision observation of the expansion of the upper wing, the lower wing and the left wing and the right wing.

When the ultra-high frequency electric wave knife operation is needed to be carried out on the vagina or cervix, the generated smoke can be discharged through the opening at the inner side or the front end of the left wing and/or the right wing, and the smoke can be discharged through the channel under the condition that the rear end is connected with the negative pressure device.

When it is desired to install illumination means, such as LEDs, at the opening at the inner side or front end of the left and/or right wings, the supply lines thereof can be LED out to the power supply through the channels in the wings, so that the examined or operated site can be carried out under illumination.

When the camera is required to be installed at the opening of the inner side or the front end of the left wing and/or the right wing, the image of the checking 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 oppositely kneaded, the second expansion positioning device on the meshing 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 the speculum can be taken out from the vagina at the moment.

Compared with the prior art, the invention has the following beneficial effects:

1. The second locating buckle is arranged on the locating sleeve, the design change can enable the inner diameter spacing between the left wing and the right wing to be opened to be more than 88mm, which is 1.52 times greater than that of the second locating buckle arranged on the mounting seat in the prior art, and the invention proves that the second locating buckle has remarkable progress, and the invention greatly improves the effectiveness of medical equipment in clinic no matter seeing a doctor, sampling, operating, physiotherapy and the like.

2. The invention has the advantages that the second handle is arranged on the second positioning hook, the serious defects that the rear end of the four-wing side expansion sheet in the prior art is only provided with one handle, the adjustment and the separation cannot be realized, and the like are overcome, the invention adds the ingenious design of the second handle above the second positioning hook, so that a doctor can use the device clinically, the second handle above the second positioning hook can drive the second positioning hook to tilt upwards so that the second positioning hook can move in a suspended manner, be fixed or deviate from the position above the second positioning buckle, and the left side wing and the right side wing can be opened horizontally outwards and folded between the upper wing and the lower wing inwards only by oppositely kneading the first handle or the pipe joint with the second handle.

3. The first expansion positioning device is designed as the hook expansion positioning self-destruction device, the operation process is completely consistent with that of the non-self-destruction expander, the self-destruction is realized at the same time, and when the upper wing and the lower wing are expanded, the opening angle of the two wings reaches more than 40 degrees, so that the first expansion positioning device has enough visual field, and the second expansion positioning device has the effects of avoiding cross infection of iatrogenic diseases, protecting the health of people and protecting the safety and effectiveness of medical appliances.

4. The invention also makes the side expansion piece open joint shaft into an elastic open joint shaft, thus being very beneficial to being arranged in the joint cavity, and has good practicability in clinical use and easy and flexible rotation.

5. The invention makes the two side edge parts of the front end of the joint cavity on the positioning seat into the back-off, so that the open joint shaft can not slip off and is safe and reliable when in use.

Drawings

FIG. 1 is a schematic view of the structure of the instant destruct four-wing speculum in a state of not being used and entering the vagina closed (operation type);

FIG. 2 is a schematic view of the expanded state of FIG. 1 with the upper and lower wings open at an angle >40 degrees;

FIG. 3 is a schematic view of the closed configuration of FIG. 1 after use and after being destroyed;

FIG. 4 is a schematic view of the structure of the expansion piece of the instant destroying four-wing speculum;

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

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

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

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

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

FIG. 10 is a schematic view of the instant destruct four-winged speculum in its expanded state with a left and right wing deployment spacing of >88 mm;

Fig. 11 is a schematic structural view of the spiral expansion positioning self-destroying device of the instant destroying four-wing speculum.

Detailed Description

Referring to fig. 1-5, the destruct four-wing speculum comprises an upper expansion piece 01, wherein the upper expansion piece 01 comprises an upper wing 01-1 and a pressing handle 01-2 which is integrated with the upper wing 01-1 and extends downwards along the rear end of one side of the upper wing, shaft pins 01-3 are arranged on the left 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 shaft pins 01-3, the second shaft hole 01-4 is used for rotatably connecting the second shaft pin 03-2, and the pressing handle 01-2 is further provided with a pressing handle hole 01-8; 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 of the lower wing 02-1 close to a right angle, a grab handle side hole 02-8, a convex protrusion 02-7 and an inclined pad 02-9 are arranged on the grab handle, 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 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, so that the upper wing 01-1 and the lower wing 02-1 can be opened and closed by controlling the push 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 and destroying device 09, which combines the positioning function in use and the destroying function after use, the device further comprises a positioning seat 09-12 arranged in a grab handle side hole 02-8 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 a position of a front dome 09-13 of the screw, the screw 09-14 with threads is screwed through the push hole 01-8 and the screw cap 09-15, and a doctor can expand, adjust and fix according to the size of an inspection field or an operation range.

With continued reference to FIG. 11, the self-destructing strip 09-16 is a short, relatively small strip with a slight overall forward incline, with the front side abutting against the front wall of the handle side hole 02-8 and the rear side being the screw front dome 09-13, with the positioning seat 09-12 being more firmly secured in the handle side hole 02-8 and the inclined pad 02-9 due to the front-to-back tension of the self-destructing 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 using, the self-destroying strip 09-16 is forced by the push handle 09-18 or the screw cap 09-15 together with the screw rod 09-14, the abdomen of the self-destroying strip 09-16 is extruded by the front wall of the side hole 02-8 of the handle to instantly fracture and position the self-destroying strip 09-16 by the extrusion of the front wall of the side hole 02-8 of the handle, and the impact force of the screw rod 09-14 caused by the leverage of the positioning seat 09-12 and the inclined pad 02-9 causes the self-destroying strip 09-12 to instantly fracture, so that the self-destroying strip 09-16 fracture almost simultaneously slides from the side hole 02-8 of the handle and the inclined pad 02-9 of the positioning seat 09-12, and the screw rod 09-14 cannot be unscrewed and expanded and positioned with the screw cap 09-15 due to the dislocation of the positioning seat 09-12, and the fracture of the self-destroying strip 09-16 almost occurs and is completed at the root part, and almost appears to be "fracture", even if the self-destroying strip 09-16 fracture is still separated from the side hole 09-12 and the positioning seat 09-9 is still not separated; the screw 09-14 is also connected with the positioning seat 09-12 after being out of position and can not fall down singly, so that a doctor is an integral expander just like a disposable vaginal expander without a destroying device when taking out, and the operation is simple and labor-saving, convenient and practical, safe and effective.

With continued reference to fig. 1-3 and 11, according to another preferred embodiment of the present invention, the head end of the self-destroying strip 09-16 extends forward to form a crown 09-17, so that the self-destroying strip 09-16 with the crown 09-17 is shaped like a 7 in a transverse direction, and correspondingly, is just buckled with the protrusion 02-7 positioned in front of the side hole 02-8 of the grab handle, the self-destroying strip 09-16 designed by the crown 09-17 is more easily broken and self-destroyed by being extruded by the front wall of the side hole 02-8 of the grab handle, and when the self-destroying strip 09-16 with the crown 09-17 is extruded and broken, the fracture is still usually at the root, so that the operation is time-saving, labor-saving, simple, safe and effective.

With continued reference to fig. 1-5, designing the first expansion positioning device 09 at one side of the press handle 01-2 and the grip 02-2 brings the advantages that the visual field and space of the whole expander are enlarged, the opening angle of the upper wing and the lower wing can reach >40 degrees, various operations and various examinations of obstetrics and gynecology are very beneficial, as >40 degrees can fully expose the vagina and the cervix uteri, the vaginal orifice can be effectively protected from being excessively expanded, the clinical use is more beneficial to diagnosis and operation, and the safety and the effectiveness are higher.

With continued reference to FIG. 1, prior to clinical use, the upper and lower wings 01-1 and 02-1 and the left and right wings 04-10 are both in a closed state, and when clinical use is initiated, the physician places the dilator into the vagina with the upper and lower wings 01-1 and 02-1 and 04-10 still in a closed state, at which time the self-destructing strip 09-16 and crown 09-17 are seen intact.

With continued reference to FIG. 2, when in clinical use, the doctor presses the push handle 01-2, the upper wing 01-1 and the lower wing 02-1 are expanded to the required field of view, the nut 09-15 is rotated into the screw 09-14 to fix, 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 the operation, at this time, the self-destructing 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 completed, the doctor kneads the surgical tube joint 04-8 and the second handle 04-5, and according to another preferred embodiment, the doctor kneads the first handle 04-8 and the second handle 04-5 of the inspection type, at this time, the second handle 04-5 pulls the positioning hook and lightly breaks away from the second positioning buckle 03-5 by using the elastic action thereof, and easily withdraws the side wing 04-10 between the upper and lower wings; the doctor withdraws the screw cap 09-15 backward, the upper wing and the lower wing are closed, at this time, the pushing handle 09-18 or the screw cap 09-15 is pushed down, and the screw rod 09-14 is pushed along with the pushing handle 09-18 or the pushing force and elastic acting force of the screw cap 09-15, so that the self-destroying strip 09-16 or the head crown 09-17 is extruded by the front wall protruding slightly backward from the middle part of the upper layer of the side hole 02-8 of the grab handle, at this time, the self-destroying strip 09-16 or the head crown 09-17 can be broken by 'fracture' immediately and cannot be restored, 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 provided at a position corresponding to the handle hole 01-8 on the outer side of the middle portion of the handle 02-2, the bottom layer is larger than the upper layer, and an inclined pad 02-9 is provided at the rear end of the bottom layer of the hole.

According to another embodiment of the invention, the bottom layer of the grab handle side hole 02-8 is designed into a treasured gourd shape, and the locating seat 09-12 of the treasured gourd shape which is matched with the bottom layer shape is firmly arranged in the bottom layer of the grab handle side hole 02-8, so that the grab handle side hole 02-8 is attractive and practical, the clinical use safety and effectiveness are guaranteed, the overall thickness of the locating seat 09-12 can be reduced due to the design of the upper layer and the lower layer, and the front thickness and the back thickness of the locating seat 09-12 are designed, so that the locating seat 09-12 can be used only once under the forward thrust force of the push handle 09-18 or the screw cap 09-15, and the locating seat 09-12 can be more easily slipped from the grab handle side hole 02-8 and the inclined pad 02-9 under the lever action of the inclined pad 02-9, and can not be unscrewed with the screw cap 09-15, so that the expanding and locating functions can be lost, and the purposes of preventing the cross infection of the hospital diseases can be achieved.

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 through the second shaft pins 03-2 at the inner sides 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 the mounting seat 03-3, the outer side of the seat is provided with the joint cavity 03-6 capable of receiving the open joint shaft 04-3 folded between the upper wing and the lower wing, and the edges or parts at the two sides of the front end of the joint cavity 03-6 are made into the inverted buckles 03-9 so as to ensure that the open joint shaft cannot slip in clinical use and is safe and reliable; a second locating buckle 03-5 is arranged above the two ends of the locating sleeve, and the second locating buckle 03-5 is meshed with the second locating hook 04-4 to form a second expansion locating 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. 6-7, preferably, a sleeve protrusion 03-8 may be disposed at the front center of the positioning sleeve 03, and a sleeve groove 03-7 may be disposed on the upper and lower sides of the positioning sleeve 03, so that the positioning sleeve 03-1 drives 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, according to an embodiment of the present invention, there is no channel in the side expansion piece, and the side expansion piece 04 with a solid structure has a very simple structure, and is sequentially from front to 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-operative precancerous lesion screening or examination and sampling of patients with vaginal wall mucosa prolapse, and physical treatments such as microwaves, laser and the like.

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 with a hollow structure is a channel 04-6 formed by a main body 04-1 and a channel cover 04-2 thereon, a positioning protrusion 04-9 is provided on the inner side of the front end of the channel cover 04-2, the channel cover 04-2 can be quickly and accurately installed on a positioning recess (not shown) of the main body, at least more than one channel opening 04-7 is provided on the front end of the channel, and the following steps are performed from back to front: the inner side of the front of the pipe joint 04-8 is provided with a second positioning hook 04-4 which is radially inwards and a second handle 04-5 thereon, the front of the second positioning hook is provided with an open joint shaft 04-3, the middle front part is provided with a side wing 04-10, the hollow side expansion piece is particularly suitable for cervical surgery and other patients who are subjected to vaginal surgery, for example, the patients suffering from cervical cancer or lesions before cervical cancer need ultrahigh frequency electric wave knife surgery (also called LEEP knife surgery and the like), the wide surgery space is provided, the exposure is comprehensive, the surgery field is large and clear, toxic smoke in the surgery can be simultaneously discharged, and the hollow side expansion piece is also used for washing the vagina and the like.

With continued reference to fig. 9, on the other hand, the split design of the side expansion piece 04 through the main body 04-1 and the channel cover 04-2 is very beneficial to production and assembly, and is beneficial to reducing the volume of the mold and reducing the cost of the mold, furthermore, the installer can open the channel cover 04-2 to accurately install the required objects in place under direct view, and the design is very ingenious and practical, such as the installation of an illuminating lamp, a camera, a smoke exhaust filter device, the requirement of laying a power line, and the like; the side expansion piece 04 with the hollow structure can be used for examination and use such as pre-cervical cancer screening when an external smoke discharging negative pressure device is not needed; so that the various designs of the side expansion piece 04 are very ingenious, scientific, reasonable and advanced.

With continued reference to fig. 8-9, the joint shaft 04-3 is designed to be of an open shape and is elastic, so that the joint shaft is easy to install into the joint cavity, and the joint shaft is flexible to rotate and convenient and practical to operate when in use. Also because the second positioning hook 04-4 is positioned at the free end and has elasticity, the second handle is also biased to the free end, and can enter or exit the second positioning buckle 03-5 along with the upward tilting of the second handle 04-5 thereon during use, thereby being convenient for adjustment and fixation.

Referring to fig. 2 and 10-11, the first expansion positioning device and the second expansion positioning device are provided, a doctor can adjust four directions of an upper wing, a lower wing, a left wing and a right wing to the upper wall, the lower wall, the left wall and the right wall of a vagina according to the needs of clinical patients to effectively expand to required positions, when the vaginal dilator expands to the maximum grade, the opening angle between the upper wing and the lower wing can reach 40 degrees, the spacing between the left wing and the right wing which are horizontally opened outwards can reach 88mm, after the examination or operation is finished, the left wing 04-10 and the right wing 04-10 are firstly recycled into the upper wing (01-1) and the lower wing (02-1), finally the upper wing (01-1) and the lower wing (02-1) are recycled to be closed, and simultaneously the dilator is destroyed in the operation process, thereby achieving two purposes.

According to a preferred embodiment, the shaft pin is large at two ends, small in middle, solid at the middle and lower parts, and elastic in the middle and upper parts, the diameter of the edge of the split is slightly larger than that of the split, and the whole shaft pin is similar to a dumbbell-shaped shaft pin structure, so that the shaft pin is easy to assemble, easy and convenient to rotate in clinical use, flexible and free, and the working efficiency of doctors is improved.

The foregoing describes in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the invention by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims

1. The quick-destroying four-wing speculum comprises an upper expansion piece, a lower expansion piece, at least one side expansion piece and a positioning sleeve, wherein the upper expansion piece and the lower expansion piece are rotatably connected and positioned through an expansion positioning device, and the positioning sleeve is rotatably connected with the upper expansion piece and the side expansion piece respectively;

The positioning sleeve is provided with a convex protrusion in the middle of the outer side of the positioning sleeve, the convex protrusion is shifted upwards or downwards, the positioning sleeve can be adjusted to be positioned along with the upper and lower sides of the wing wings, the inner sides of the two ends of the sleeve are provided with second shaft pins which are rotatably and detachably connected with the 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 the two ends of the sleeve are respectively provided with a mounting seat, the outer sides of the seats are provided with a joint cavity which can receive the open joint shaft of the side expansion piece which is folded between the upper wing and the lower wing, so that the wing wings pivot relative to the mounting seats, the second positioning hook and the open joint shaft have elasticity, and the edge parts of the two sides of the front end of the joint cavity are made into inverted buckles;

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 a handle, self-destroying strips and a screw rod are arranged in front of and behind the positioning seat, a front dome of the screw rod capable of being provided with the self-destroying strips is arranged at the lower part of the screw rod, a pressing handle hole is penetrated on the screw rod and is screwed with a screw cap for positioning, and at least one of the self-destroying strips and the screw rod has elasticity.

2. The disposable four-wing speculum according to claim 1, wherein one end of the second positioning hook is fixedly connected with the side expansion piece, the other end is a free end, and the second handle is arranged at the free end.

3. The disposable four-wing speculum according to claim 1, wherein 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 inwards, a second handle which is integrally and upwards extended 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.

4. A disposable four-wing speculum according to claim 3, wherein the channel comprises a channel body and a channel cover thereon, the edge of the channel body having a slot for receiving the channel cover therein, the slot having a locating projection on the inside of the front end of the channel cover, the front end of the channel body having at least one channel opening.

5. A disposable four-wing speculum according to claim 3, wherein the self-destructing strip extends forward from the top end thereof to form a crown which is shaped like a 7 in the transverse direction and is engaged with a protrusion located in front of the side hole of the handle.

6. The disposable four-wing speculum of claim 1, wherein the upper expansion plate 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 limit groove is formed in the middle of the rear part of the upper wing and used for limiting the limiting position of the positioning sleeve and the side wings 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 formed in front of the shaft pin;

The lower expansion sheet comprises: the lower wing and with lower wing an organic whole and from the grab handle of lower wing rear end downwardly extending, be equipped with the shaft hole between lower wing and pressing the handle, be equipped with grab handle side hole and sloping pad on the grab handle, the sloping pad is established at the end in grab handle side hole.

7. The disposable four-wing speculum according to claim 6, wherein the handle side hole is formed as a single layer or a double layer, the double layer is larger than the upper layer, the bottom layer is in the same shape as the positioning seat, and the front of the handle side hole is provided with a convex protrusion for buckling the crown.

8. The disposable four-wing speculum according to claim 6, wherein the shaft pin is large at two ends, small in the middle, solid at the middle and lower parts, and the middle and upper parts are split and elastic, and the diameter of the edge of the split is slightly larger than that of the split, so that the whole speculum is dumbbell-shaped.