A wing-attached instant-destructive vaginal dilator for surgery

Abstract

The invention discloses a lower-attached-wing type instant-destructive surgical vaginal dilator, comprising an upper dilating piece including an upper wing and a handle and a lower dilating piece including a lower wing and a gripping handle, wherein the inner surface of the lower wing is provided with a lower attached wing, the upper and lower dilating pieces are fixed by an expansion positioning device, and further comprising a lower attached wing arranged on the lower dilating piece, the lower attached wing dividing a main body into a front section and a rear section, the front section comprising a main body 06-1A, a concave joint, a pipe joint, a buckle and a main body 06-1A channel, the rear section comprising a main body 06-1B, an edge of which is provided with a cover plate groove with a staple hole, the cover plate is installed on the cover plate groove, the staples on the cover plate are closely matched with the staple holes on the cover plate groove, the channel of the main body 06-1B is inside, N openings are provided at the front of the cover plate, a convex joint is provided at the rear end of the main body 06-1B to connect the front and rear sections into one; an instant-destructive device is provided on the gripping handle for the buckle to be installed in the instant-destructive hole, and the upper and lower dilating pieces are fixed by a spiral expansion positioning instant-destructive device.

Description

Technical Field

[0001] The invention relates to a vaginal speculum for gynecology and obstetrics, and in particular to a vaginal dilator with lower wings for instant destruction in surgery. Background Art

[0002] Vaginal speculum, also known as vaginal dilator or speculum, is a commonly used examination and surgical instrument in obstetrics and gynecology and family planning departments. It is used to dilate the vagina to expose the examination site or surgical site. Before the 1980s, my country did not have disposable vaginal speculum and had been using expensive spiral metal vaginal speculum. After searching domestic and foreign literature, the U.S. Patent Office recorded a vaginoscope invented by John L. Marco in 1949. speculum", (patent number 2544932). The colposcope described in that era was actually a vaginal speculum. The expansion and fixing device was composed of accessories such as nuts and screws. A vaginal speculum had more than a dozen parts and was made of metal. It was expensive and time-consuming to operate. It needed to be cleaned and sterilized at high temperature before being used for the next patient. There was a risk of cross-infection of iatrogenic diseases. It was not until 1989 that the State Intellectual Property Office of China recorded that Lin Jing of Wenzhou Medical University invented the "Disposable Sterile Vaginal Dilator" (patent name "Vaginal Dilator" patent number 891083928) for the first time in my country, simplifying the entire vaginal speculum to only a total of 100 parts including the expansion and fixing device. The invention is composed of two parts: an upper expansion piece with a hook and a lower expansion piece with a buckle to form a complete vaginal speculum, which can achieve the function that an inspection speculum originally invented by Americans requires 11 parts and a surgical speculum requires 9 parts to make the upper and lower wings open at an angle of >40°. >40° has great clinical benefits and involves the safety and effectiveness of medical devices. It can effectively expand the vagina, expose the cervix, facilitate inspection, diagnosis and treatment, and surgery. It has a scientific and reasonable design and can be operated with one hand. It is efficient, convenient, inexpensive and of good quality. Due to the small number of parts, the cost is greatly reduced, and it can be made for disposable use, so as to achieve the purpose of eliminating cross infection of medical diseases.

[0003] In recent years, with the rapid popularization of electronic colposcopes, a considerable number of women with cervical diseases need to undergo loop electrosurgical excision procedure (LEEP). During the operation, harmful smoke with a stinging throat and a burnt odor is produced, affecting the health of doctors and patients, and also blurring the doctor's vision.

[0004] Chinese patent application 200810107219.6 discloses "disposable smoke exhaust type double-wing vaginal dilator and its manufacturing method", which includes an upper leaf and a lower leaf. A smoking pipe connected to a smoking device is provided on the inner side of the upper leaf, and elastic silicone sleeve wings or elastic wing-shaped wings or accordion-type folding wings are installed on the upper leaf and the lower leaf. The wings are used to prevent the exposed vaginal wall between the upper and lower wings from being blocked by the danger of burning during LEEP knife surgery and thus cannot play the role of dilating the vaginal wall. A smoking pipe is installed on the upper wing. Except for the two ends of the smoking pipe, the surroundings are sealed and there is no cover plate, so there is no way to open the cover plate. The operator cannot install micro-instruments such as LEDs and cameras under direct vision.

[0005] Chinese patent application 00232603.5 discloses a "snap-on disposable vaginal speculum", wherein an electric light source with lead wires and a connector is provided on the inner side of the upper peep leaf near the root, and the electric light source and the lamp holder can be connected by a spiral, and a smoke removal tube is provided on the lower peep leaf and the hand handle, and the lower end of the smoke removal tube is connected to the negative pressure suction tube through a hose, wherein the smoke removal tube can be made into one piece with the lower peep leaf, or a hard curved tube can be fixed on the lower peep leaf. Its defect is that the lead wire and the electric light source of the connector, even if part of it is not in the sealed pipe, are unsafe risks for medical equipment and are not clinically useful. If all are placed in the pipe, and the pipe and smoke removal pipe described in the patent are sealed on all sides instead of being a close fit of the pipe cover and the pipe that can be opened, such a long and curved lower wing smoke removal pipe has not been made with a plastic mold so far, and there is difficulty in demoulding, and its practicality is limited.

[0006] Chinese patent application 200720038815.4 discloses a "vaginal dilator with smoke exhaust", in which a smoke exhaust pipe is installed on the inner side of the upper wing of the duckbill, and a plurality of through holes are opened on the smoke exhaust pipe body, the through holes are arranged at the bottom of the front end of the smoke exhaust pipe body, and the end of the smoke exhaust pipe extends to the tail of the duckbill. Although this patent is a little more advanced than the above two tubes sealed on all sides, multiple through holes are opened on the smoke exhaust pipe body, that is, a through hole is opened at a certain distance in the smoke exhaust pipe, rather than a cover plate that can be opened as a whole, so the "multiple through holes" of this vaginal dilator with smoke exhaust can only be used for smoke exhaust, and it does not have the function of opening the entire cover plate to allow the operator to quickly and accurately install equipment such as PLE lights and cameras under direct vision to increase the many clinical practical functions of the vaginal dilator.

[0007] In 2010, Chinese inventors Zhang Xingxing and Lin Jing's team invented the "Vaginal Dilator with Upper and Lower Wings" with patent authorization number ZL201010227012.X, which was the first in China and abroad to propose setting upper and lower wings composed of a channel body and a cover plate on the inner surface of the upper and lower wings. This invention, together with the "Vaginal Dilator with Double Side Wings", has a Chinese invention patent authorization number of ZL201010227014.9. We have also applied for US and European international patents, and have been authorized by the US Patent Office with patent number US 8,876,711 B2EP and the European Patent Office with patent number EP 2 586 486 B1. One of the implementation schemes of this patent is to provide a plurality of protrusions on the outer sides of the upper and lower wings, and install them in a plurality of grooves on the inner sides of the corresponding upper and lower wings for receiving the protrusions, or to provide a plurality of snap buttons on the outer sides of the upper and lower wings, and install them in a plurality of snap button seats on the inner sides of the corresponding upper and lower wings for receiving the snap buttons. In this way, there is a defect that the upper and lower wings occupy the entire arc-shaped space of the upper and lower wings. Another scheme of this patent was found in the implementation process that the lower wing was too long and too curved (the curvature of the front and rear ends reached 90 degrees), the mold was too large during manufacturing, the cost was too high, and the assembly was slow.

[0008] With the clinical application of disposable vaginal dilators, it was later reported that some lawless elements recycled and reused them. In order to prevent secondary use, Chinese inventors Lin Jing and Zhang Xingxing upgraded it and invented the "Instant Destruction Type Disposable Sterile Vaginal Dilator" in 2004 (patent name: Instant Destruction Painless and Noiseless Disposable Vaginal Dilator, patent number 200420116743.7). The principle is to set an "instant destruction belt" on the non-stressed part of the dilator handle or handle, and break the "instant destruction belt" after use to achieve the purpose of not being able to use it again. However, in actual application, if the "instant destruction belt" is too deep, it is easy to break during transportation, and if the "instant destruction belt" is too shallow, it is difficult to break. Therefore, it is necessary to further develop disposable vaginal dilators. Summary of the invention

[0009] The purpose of the present invention is to provide a wing-attached, instant-destructive vaginal dilator for surgery that can overcome the defects of the prior art.

[0010] In order to achieve the above-mentioned purpose, the technical solution of the present invention provides a lower-attached-wing type instant-destructive surgical vaginal dilator, comprising an upper dilating piece and a lower dilating piece, wherein the upper dilating piece comprises an upper wing and a handle, and the lower dilating piece comprises a lower wing and a grip, and the two sides of the rear ends of the upper wing and the lower wing are respectively connected by a pin shaft, and the inner side surface of the lower wing is provided with a lower attached wing of a channel, characterized in that it also includes a lower attached wing arranged on the lower dilating piece, and the lower attached wing divides the main body into two sections, front and rear, and the front section includes the main body 06-1A, a concave joint, a pipe joint and a buckle and The main body 06-1A channel, the rear section includes the main body 06-1B, the edge of which is provided with a cover plate groove with a staple hole, the cover plate is installed on the cover plate groove, the staples on the cover plate are tightly matched with the staple holes on the cover plate groove, and the inside is the channel of the main body 06-1B, the front part of the cover plate is provided with N openings, the rear end of the main body 06-1B is provided with a convex joint which is connected with the front end concave joint of 06-1A to connect the front and rear sections into one; the lower wing buckle is just installed in the instant-destruction hole of the instant-destruction device, and the upper and lower expansion plates are fixed by the spiral expansion positioning instant-destruction device.

[0011] The spiral expansion positioning and instant destruction device includes a positioning seat installed in the hole beside the handle and the inclined pad, and a self-destruct strip and a screw are arranged in front and back on the positioning seat. The lower part of the screw has a screw front dome for accommodating the self-destruct strip. The screw passes through the handle hole on the handle and is screwed and fixed with a nut. The top of the screw is a push handle or a nut. At least one of the self-destruct strip and the screw should be elastic.

[0012] Preferably, the upper expansion piece comprises: an upper wing, and a handle which is integral with the upper wing and extends downward along the end of one side of the upper wing, and the handle is provided with a handle hole;

[0013] Preferably, the lower expansion piece comprises: a lower wing, and a handle integral with the lower wing and extending downward from the rear end of the lower wing, the handle being provided with a handle side hole, an inclined pad and a convex protrusion, the inclined pad being at the end of the handle side hole, and the convex protrusion being arranged in front of the handle side hole.

[0014] Preferably, the instant-destruction device comprises: a base protrusion, a lace is provided above the base protrusion, a rubber-reducing belt is provided below, and left and right hollow belts are between the lace and the rubber-reducing belt. After the instant-destruction device is destroyed, it becomes a destructible hole.

[0015] Preferably, the positioning seat is arranged in the hole beside the handle and in the inclined pad, and is polygonal in shape, thick in the front and thin in the back.

[0016] Preferably, the self-destruct strip is in the shape of an elongated strip and is slightly tilted forward as a whole. Its top end extends forward to form a crown, which is shaped like a "7" laterally. The crown is engaged with a protrusion located in front of the handle side hole. The front of the self-destruct strip is the front wall of the handle side hole, and the back is a screw.

[0017] Preferably, the handle side hole is designed with a single layer or a double layer, the bottom layer is larger than the upper layer, the shape of the upper layer is not limited, and the shape of the bottom layer is consistent with the positioning seat.

[0018] Preferably, the axle pin is large at both ends and small in the middle, the lower middle portion is solid, and the upper middle portion is open and elastic, the edge diameter of the open portion is slightly larger than the diameter of the open portion, and the overall shape is like a dumbbell.

[0019] Preferably, the front end of the lower wing is closed or has a hole, and the rear end has a hole, and its cross section is U-shaped, inverted mouth-shaped or truncated circular.

[0020] Preferably, the rear end of the lower wing also has a pipeline connected to the pipe joint, including single-way, double-way, three-way and multi-purpose pipelines.

[0021] Preferably, the expansion positioning self-destruction device and / or the expansion self-destruction device are also suitable for use in other double-wing, three-wing, four-wing or multi-wing vaginal speculum.

[0022] Preferably, the upper expansion piece, the lower expansion piece, the expansion positioning self-destruction device and / or the expansion self-destruction device can all be made of degradable materials.

[0023] The lower wing-attached instant-destructive surgical vaginal dilator of the present invention is put into the vagina in a closed state, and the push handle is pressed to open the upper and lower wings to the desired field of view, and the field of view is maintained by the engagement of the screw and the nut. At the end of the operation, the doctor gently pushes the push handle or the nut or the nut forward by hand, and the self-destructive strip is squeezed by the front wall of the handle side hole, and its root is immediately broken and self-destructed, and cannot be restored. At the same time, the thrust is transmitted through the screw to the positioning seat through the lever effect of the inclined pad and the design of the positioning seat that is thick at the front and thin at the back, so that the positioning seat immediately slips out of the handle side hole and the inclined pad and self-destructs, and the screw loses its position and cannot be positioned. The three self-destruct almost simultaneously, and the upper and lower wings are automatically closed, and the doctor can take out the vaginal dilator from the vagina.

[0024] Vaginal surgery must have good dilation so that the doctor can have a full field of vision. The present invention sets the dilation positioning self-destruction device on one side of the dilator, which is beneficial for doctors to perform right-handed surgery (because there are very few left-handed doctors, even if there are left-handed doctors, they will change their habits and use the left hand to hold the dilator and perform the surgery with the right hand). Due to this design, the maximum opening angle of the upper and lower wings can reach >40° during dilation, which has a wide field of vision and can fully expose the vagina and cervix, which is very beneficial for various transvaginal surgeries in obstetrics and gynecology. Therefore, the vaginal dilator can be manufactured into a surgical type for various clinical transvaginal surgeries in obstetrics and gynecology.

[0025] Obviously, the present invention overcomes the shortcomings of the prior art and provides a device with a simple structure and convenient operation. When in use, all processes, steps and time are exactly the same as those of a non-destructive disposable spiral vaginal dilator; it does not increase the pain of the patient and is safe and reliable to use. When the operation is finished, just push the push handle or the nut forward gently, the self-destruct strip will immediately break and self-destruct, and the positioning seat will slip out of the handle side hole and the inclined pad and self-destruct, and after self-destruction, it cannot be restored and cannot be used again, so as to achieve the purpose of eliminating cross infection of medical diseases and improve the safety of clinical use and patients. The vaginal dilator of the present invention also has the advantages of simple structure and easy manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A cross-sectional view of a lower wing-attached instant-destructive surgical vaginal dilator according to the present invention;

[0027] Figure 2 for Figure 1 A cross-sectional view of the lower wing;

[0028] Figure 3 for Figure 2 A partial enlarged view of the female joint of the main body 06-1A and the male joint of the main body 06-1B;

[0029] Figure 4 This is a schematic diagram of the expansion piece on the vaginal dilator;

[0030] Figure 5 This is a schematic diagram of the lower expansion piece of the instant-destruction device of the vaginal expansion device;

[0031] Figure 6 This is a schematic diagram of the structure of the disfigured hole of the vaginal dilator.

[0032] Figure 7 This is a schematic diagram of the structure of the expansion positioning self-destruction device of the vaginal dilator. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with specific embodiments. In this document, vaginal speculum and vaginal dilator have the same meaning.

[0034] First refer to the attached Figure 4-5The present embodiment of the present invention comprises an upper wing 01-1, a positioning groove 01-5 is provided in the middle of the upper part of the upper wing 01-1, and a handle 01-2 which is integral with the upper wing 01-1 and extends backward along one side of the upper wing, and a handle hole 01-8 is provided on the handle 01-2 and a thin sheet 01-6 is provided in front of the handle hole 01-8; a lower wing 02-1 and a grip 02-4 which is integral with the lower wing 02-1 and extends downward, and a grip hole 01-8 is provided on the grip 02-4. 2-8, a stamp bar 02-6 and an inclined pad 02-9, and preferably also provided with a convex protrusion 02-7; the convex protrusion 02-7 is arranged in front of the handle side hole 02-8, the stamp bar is arranged in front of the handle side hole 02-8 and the convex protrusion 02-7, and the inclined pad 02-9 is arranged at the rear end of the bottom layer of the handle side hole 02-8; the two sides of the rear ends of the upper wing 01-1 and the lower wing 02-1 are respectively connected by pins and form a viewing port between the upper and lower wings, so the upper wing 01-1 and the lower wing 02-1 can be opened and closed by controlling the handle 01-2.

[0035] An expansion fixing device for fixing the upper wing 01-1 and the lower wing 02-1 in the open state, the device further includes a spiral expansion positioning self-destruction device 09, please refer to the attached Figure 1 , 6 The device combines the expansion and fixing positioning function for fixing the upper wing 01-1 and the lower wing 02-1 in the open state with the function of immediate destruction after use. The expansion and positioning self-destruction device 09 includes a positioning seat 09-12 installed in the handle side hole 02-8 and the inclined pad 02-9, an upwardly extending screw rod 09-14 and a self-destruction strip 09-16 located in front of the screw rod 09-14. The upper end of the screw rod 09-14 is a push handle 09-18 or a nut 09-15.

[0036] The threaded screw 09-14 and the nut 09-15 cooperate with each other, and the doctor can expand, adjust and fix according to the size of the inspected visual field or the surgical scope. Figure 6 The expansion positioning and destruction device is further expanded to include a self-destruction strip 09-16, which is located above the positioning seat 09-12 and in front of the screw 09-14. The lower part of the screw is provided with a screw front dome 09-13 for accommodating the self-destruction strip 09-16.

[0037] In a preferred embodiment, please continue to refer to the attached Figure 1 , 6The expansion positioning self-destruction device 09 further includes a self-destruction strip 09-16 on the positioning seat 09-12 and in front of the screw rod 09-14. The self-destruction strip 09-16 is a relatively short and small strip that is slightly tilted forward as a whole. Its head end extends forward to form a crown 09-17, so that the self-destruction strip 09-16 with the crown 09-17 is horizontally shaped like a "7". Correspondingly, the crown 09-17 is matched with the protrusion 02-7 in front of the handle side hole 02-8 located in the middle of the side of the handle 02-4. The self-destruction strip 09-16 is also an upward extension of the positioning seat 09-12 like the screw rod 09-14, and is located above the positioning seat 09-12. The front is close to the front wall of the handle side hole 02-8, and the back is the screw rod 09-14. A positioning hook 09-14 is provided on the back side which can mesh with the positioning buckle 01-9 at the end of the handle hole 01-8. The screw rod 09-14 and the self-destruct strip 09-16 are passed through the handle side hole 02-8 next to the outer side of the middle part of the handle. The screw rod 09-14 is further passed through the handle hole 01-8. The positioning seat 09-12 is installed in the handle side hole 02-8 and the inclined pad 02-9. At least one of the self-destruct strip 09-16 and the screw rod 09-14 should be elastic. Due to the front and rear tension of the self-destruct strip 09-16 and the screw rod 09-14, the positioning seat 09-12 is more firmly fixed in the bottom layer of the handle side hole 02-8. When the doctor has finished using the self-destruct strip 09-16, he pushes the push handle 09-18 or the nut 09-15, and the self-destruct strip 09-16 is subjected to the force of the push handle 09-18 or the nut 09-15 together with the screw 09-14, and its belly is squeezed by the front wall of the handle side hole 02-8, so that the root is immediately "fractured" and broken, and the screw 09-14 is leveraged by the positioning seat 09-12 and the inclined pad 02-9, which causes the impact force when the positioning seat 09-12 slips off, causing the self-destruct strip 09-16 root to "fracture" and break immediately. Therefore, the "fracture" of the self-destruct strip 09-16 is almost simultaneous with the slipping of the positioning seat 09-12 from the handle side hole 02-8 and the inclined pad 02-9. If the seat 09-12 slips and the screw rod 09-14 is out of position, the positioning hook 09-14 can no longer engage with the positioning buckle 01-9 for expansion and positioning. All of this happens and is completed in an instant, and the first part where the self-destruct strip 09-16 breaks is at the root, which looks like a "fracture". Therefore, even if the self-destruct strip 09-16 breaks, it is still connected to the positioning seat 09-12 and will not fall off alone; after the screw rod 09-14 is out of position, it is still connected to the positioning seat 09-12 and will not fall off alone. Therefore, when the doctor takes it out, it is still an integral dilator, just like a disposable vaginal speculum without a destructive device. Therefore, the operation is simple and labor-saving, convenient and practical, safe and effective.

[0038] In a preferred embodiment, please refer to the attached Figure 1 , 4-5. Since the expansion positioning self-destruction device is designed on the left side of the handle (push handle 01-2 and grip handle 02-4), this design expands the field of view and space of the entire expander. When expanding, the opening angle of the upper and lower wings can reach >40°, which has a good surgical field and is very beneficial for various gynecological and obstetric surgeries. It can fully expose the vagina and cervix, and at the same time protect the vaginal opening from excessive expansion. Clinical use is more conducive to diagnosis and treatment and surgery, and is safer and more effective.

[0039] Please refer to the attached Figure 1-3 According to a preferred embodiment of the present invention, a lower attachment 06 is provided on the lower expansion piece 02 (lower wing 02-1 and handle 02-4), and the lower attachment 06 divides the main body into two sections, the front section includes the main body 06-1A and a concave joint 06-4 at its front end, a pipe joint 06-12 at the rear end, and a buckle 06-11 below and a channel 06-2 therein, and the rear section includes the main body 06-1B and a convex joint 06-5 at its rear end, and the edge of the main body 06-1B is provided with a cover plate groove 06-3 with a nail hole 06-10, and the left and right sides of the front end of the main body 06-1B or together with part of the bottom are provided with openings 06-6 (in this embodiment, the left The cover plate 06-8 is also provided, and the cover plate 06-8 is installed on the cover plate groove 06-3. The staple 06-9 on the cover plate 06-8 is tightly matched with the staple hole 06-10 on the cover plate groove 06-3, and the passage of the main body 06-1B is provided therein. The cover plate 06-8 is provided with N openings 06-7 (five openings in this embodiment); the convex joint 06-5 at the front end of the main body 06-1B is connected with the concave joint 06-4 at the rear end of the main body 06-1A to connect the main body 06-1A and the main body 06-1B as a whole; the handle 02-4 is provided with an instant-destruct hole 02-B for installing the lower wing buckle 06-11 therein.

[0040] The original lower wing 06 is a long and curved pipe with an angle of approximately 90 degrees. If it were not for the split design of the channel body and the cover plate, it would be difficult to achieve injection molding demolding according to the existing technology. However, since the total length plus the total curvature is still too long and too curved, the mold needs to be very large, the cost is also very high, and the molding speed is relatively slow. Therefore, it is specially designed into two sections, the upper and lower sections, so that the mold becomes smaller, the cost is greatly reduced, the installation is easier, and the molding speed is faster, which has many advantages: On the other hand, because the main body 06-1A and the main body 06-1B of the lower wing are separated, and the main body 06-1B is split from the cover plate, it is very convenient to install, for example, LEDs and lay power lines.

[0041] The vaginal dilator of the prior art is used for observation and operation with the help of high-power external lighting, so the illumination of the deeper inspection part and the operation position of the vagina is not very good. According to the vaginal dilator of the present invention, since the lower wing 06 is designed with a main body 06-1B and a cover plate 06-8, as long as the cover plate 06-3 is opened, the channel is fully exposed, so that it is very convenient and very accurate to install a lighting device, such as an LED, at the opening 06-7 of the lower wing, and its power supply line can pass through the channel in the fully exposed lower wing under the direct sight of the operator. After the installation is completed, the cover plate is closed, so that the deeper part of the vagina can be operated under better lighting conditions, because all power supplies, power lines and equipment are placed in the channel, which not only improves the inspection and operation conditions, but also is safe and reliable.

[0042] The same principle as above, because of the design of the cover plate 06-8, the vaginal dilator of the present invention can be fully exposed to install a camera at the front end or inner channel opening 06-7 of the lower wing, whether using wired or wireless transmission, it is possible to provide real-time images of the inspection site or the surgical site. This can meet the current medical needs of providing real-time images, providing conditions for clinical diagnosis, and even remote consultation and teaching.

[0043] This embodiment (such as Figure 2 (As shown) the front part of the cover plate 06-3 of the main body 06-1B is provided with five openings 06-7 facing the vagina, the purpose of which is to quickly remove smoke when the lower wing is used for LEEP surgery; two openings 06-6 are provided at the bottom of the front end of the main body 06-1B together with the left and right sides, the bottom part faces the inner surface of the lower wing, and the holes 06-6 on the left and right sides face the side walls of the vagina, which are used to remove a large amount of blood and water generated during LEEP and other surgeries.

[0044] Please see attached Figure 5 In a preferred embodiment, an instant-destruction device 02-A is provided on the lower wing handle 02-4, including an instant-destruction device base and a base protrusion 02-13 integrated therewith. A lace 02-11 is provided above the base protrusion 02-13, and a rubber-reducing belt 02-12 is provided below. Between the lace 02-11 and the rubber-reducing belt 02-12 are left and right hollow belts 02-10. When usually used in clinical practice, this position does not affect any operation, but adds a good function. After use, the doctor presses the base protrusion 02-13 with his thumb, and the upper lace 02-11 is immediately destroyed and broken, and cannot be restored. Therefore, it can be known at a glance that the expander has been used clinically. It is easy to identify and very practical. It warns people to avoid secondary use and achieves the purpose of eliminating cross-infection of medical-induced diseases. Now the destroyed hole 02-B after the instant destruction device 02-A is destroyed is used to install the lower wing 06, which is particularly practical and has a particularly good effect. The lower wing buckle 06-11 is just stuck on this destroyed hole 02-B.

[0045] In a preferred example, the axial front end of the main body 06-1B can be closed or open, and the rear end is a pipe connector 06-12, so as to facilitate connection with the negative pressure device through a hose (including a single-way, double-way, three-way or multi-functional hose).

[0046] In another preferred embodiment, please continue to see Figure 5-6 A double-layer handle side hole 02-8 is provided on the outside of the middle of the handle 02-4. The bottom layer is larger than the upper layer. An inclined pad 02-9 is provided at the bottom of the hole. This design, which pays attention to even the details, allows the bottom layer to have a larger space than the upper layer. According to a preferred embodiment, the bottom layer of the handle side hole 02-8 is designed to be in the shape of a treasure gourd, and the positioning seat 09-12 in the shape of a treasure gourd corresponding to the bottom layer is firmly installed in the handle side hole 02-8 to ensure safe and reliable clinical use. On the other hand, the design of the upper and lower layers can reduce the overall thickness of the positioning seat 09-12, and the design of the positioning seat 09-12 being thick in the front and thin in the back makes it easier for the positioning seat 09-12 to slip out of the handle side hole 02-8 and the inclined pad 02-9 under the action of the forward thrust of the push handle 09-18 or the nut 09-15, through the transmission of the screw 09-14 and the leverage of the inclined pad 02-9, causing the screw 09-14 to be out of position and unable to be tightly screwed with the nut 09-15, thereby losing the expansion and positioning functions. The three "self-destruct" at the same time and cannot be restored, so it can only be used once, thereby achieving the purpose of eliminating cross-infection of medical diseases.

[0047] In another preferred embodiment, continue to refer to Figure 1 , 4 The shaft pin is large at both ends and small in the middle, the lower middle part is solid, and the upper middle part is open and elastic. The edge diameter of the open piece is slightly larger than the diameter of the open piece, and the whole is dumbbell-shaped. The vaginal dilator with such a dumbbell-shaped shaft pin is not only easy to assemble, but also easy and convenient to rotate during clinical use, and flexible, thereby improving the doctor's work efficiency.

[0048] The expansion positioning self-destructing device and / or the expansion self-destructing device described in the present invention are also suitable for use in other double-wing, three-wing, four-wing and multi-wing vaginal dilators.

[0049] The vaginal dilator of the present invention can be made of degradable materials to reduce pollution, reduce damage to human health and protect the environment.

[0050] The applicant has made detailed descriptions of the concepts and embodiments of the present invention. Those skilled in the art may make various changes and improvements on this basis. However, if these changes and improvements do not deviate from the spirit of the present invention, they are all within the scope of protection defined by the claims.

Claims

1. A vaginal dilator with a lower attached wing for instant destruction surgery, comprising an upper dilating piece and a lower dilating piece, wherein the upper dilating piece comprises an upper wing and a handle, and the lower dilating piece comprises a lower wing and a handle, wherein the two sides of the rear ends of the upper wing and the lower wing are respectively connected by a shaft pin, and the inner side of the lower wing is provided with a lower attached wing with a channel, characterized in that: It also includes a lower wing provided on the lower expansion piece, the lower wing divides the main body into two sections, the front section includes the main body 06-1A, the concave joint, the pipe joint and the buckle and the main body 06-1A channel, and the rear section includes the main body 06-1B, the edge of which is provided with a cover plate groove with a staple hole; by installing the cover plate on the cover plate groove, the staples on the cover plate are closely matched with the staple holes on the cover plate groove, and the channel of the main body 06-1B is formed inside, and the front part of the cover plate is provided with N openings, and the rear end of the main body 06-1B is provided with a convex joint connected with the front concave joint of 06-1A to connect the front and rear sections into one; an instant-destruction device is provided on the handle, and the buckle of the lower wing is just installed in the instant-destruction hole of the instant-destruction device, and the upper and lower expansion plates are fixed by the spiral expansion positioning instant-destruction device; The spiral expansion positioning and instant destruction device comprises a positioning seat installed in the handle side hole and the inclined pad, and a self-destruct strip and a screw are arranged in front and back on the positioning seat, and the lower part of the screw has a screw front dome for accommodating the self-destruct strip, and the screw passes through the handle hole on the handle and is screwed and fixed with the nut, and the top of the screw is a push handle or a nut, and at least one of the self-destruct strip and the screw should be elastic; The upper expansion piece includes: an upper wing, and a handle which is integral with the upper wing and extends downward along the end of one side of the upper wing, and a handle hole is provided on the handle; The lower expansion piece comprises: a lower wing, and a handle which is integral with the lower wing and extends downward from the rear end of the lower wing, the handle being provided with a handle side hole, an inclined pad and a convex protrusion, the inclined pad being at the end of the handle side hole, and the convex protrusion being arranged in front of the handle side hole; The instant-destruction device comprises: a base protrusion, a lace is arranged above the base protrusion, a rubber-reducing belt is arranged below, and left and right hollow belts are arranged between the lace and the rubber-reducing belt. After the instant-destruction device is destroyed, it becomes a destruction hole.

2. The wing-attached, destructive-type vaginal dilator for surgery according to claim 1, characterized in that: The positioning seat is arranged in the hole beside the handle and in the inclined pad, and is polygonal in shape, thick in the front and thin in the back.

3. The wing-attached, destructive-type vaginal dilator for surgery according to claim 1, characterized in that: The self-destruct strip is in the shape of a long strip and is slightly tilted forward as a whole. Its top extends forward to form a crown, which is shaped like a "7" horizontally. The crown is engaged with the protrusion located in front of the handle side hole. The front of the self-destruct strip is the front wall of the handle side hole, and the back is a screw.

4. The wing-attached, destructive-type vaginal dilator for surgery according to any one of claims 1 to 2, characterized in that: The handle side hole is designed in a single layer or double layer, the bottom layer is larger than the upper layer, the shape of the upper layer is not limited, and the shape of the bottom layer is consistent with the positioning seat.

5. The wing-attached, destructive-type vaginal dilator for surgery according to any one of claims 1 to 3, characterized in that: The axle pin is large at both ends and small in the middle, the lower middle part is solid, and the upper middle part is open and elastic, the edge diameter of the open piece is slightly larger than the diameter of the open piece, and the whole is dumbbell-shaped.

6. The wing-attached, destructive-type vaginal dilator for surgery according to claim 1, characterized in that: The front end of the lower wing is closed or open, and the rear end is open, and the cross section thereof is U-shaped, inverted mouth-shaped or truncated circular.

7. The wing-attached, destructive-type vaginal dilator for surgery according to claim 1, characterized in that: The lower attached wing and / or the expansion positioning self-destruction device and / or the expansion self-destruction device are also suitable for other double-wing, three-wing, four-wing or multi-wing vaginal speculum.

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