A self-destructive surgical speculum with attached wings

Abstract

The invention discloses an upper wing-attached self-destructive surgical speculum, comprising an upper expansion piece with an upper wing and a handle and a lower expansion piece with a lower wing and a gripping handle, wherein the upper wing is provided with an upper wing with a channel on the inner side surface, and the upper and lower expansion pieces are rotatably connected and fixed by an expansion positioning device; the invention also comprises an upper wing with a channel, wherein the channel is composed of a channel body and a cover plate, wherein a cover plate groove is provided at the edge of the channel body, and the cover plate is provided with a cover plate clamp, and the cover plate can be quickly and accurately docked and fixed with the cover plate groove of the channel body through the cover plate clamp, and N openings facing the vagina are also provided at the middle front part of the cover plate, the rear end of the channel is a pipe joint, and a buckle is provided at the front above the channel body, and the buckle disassembles the upper wing on the upper wing positioning groove, and the upper wing can rotate to the left or right at an angle of >25 degrees on the inner surface of the upper wing, and the upper and lower expansion pieces are fixed by a hook expansion positioning self-destructive device, and the purpose of preventing medical-induced disease cross infection can be achieved at the same time.

Description

Technical Field

[0001] The invention relates to a vaginal speculum for gynecology and obstetrics of a medical device, in particular to a self-destructive surgical speculum with wings attached thereto. 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. The colposcope in that era was actually a vaginal speculum. The expansion and fixation device consisted of a nut, a positioning rod and other accessories. A vaginal speculum had more than a dozen parts made of metal, which was expensive and time-consuming to operate. It had 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 10 parts including the expansion and fixation device. It consists 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 benefits in clinical practice, involving the safety and effectiveness of medical devices. It can effectively expand the vagina, expose the cervix, facilitate inspection, diagnosis and treatment, and surgery. The design is scientific and reasonable, 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, thereby achieving 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 use the ring electrode circumcision procedure for cervical precancerous lesions (LEEP). During the operation, harmful smoke with a stinging throat and a burnt odor will be 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. There is no channel cover, so there is no way to open the channel cover. 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 channel cover 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 channel cover to allow the operator to quickly and accurately install equipment such as PLE lights, cameras, etc. under direct vision to increase many clinical practical functions of the vaginal dilator, and there is only one smoke exhaust pipe, which is not conducive to the rapid discharge of toxic smoke, and does not play the role and effect of multi-pipeline coordinated discharge.

[0007] On the other hand, with the development of clinical medicine, there is a requirement for clearer and more precise observation of the examination and surgical sites, as well as provision of real-time images of the examination and surgical sites, in order to meet the needs of clinical diagnosis and teaching. To this end, it is required to provide a channel and a channel cover for installing lighting or video devices as well as front and rear openings in the vaginal dilator. In other words, only when the three major elements of the channel, the channel cover and the front and rear openings are available can lighting, video devices and other devices be installed accurately, reliably, quickly and conveniently, and safe and effective clinical use be achieved.

[0008] In 2010, the patent authorization number ZL201010227012.X, "Vaginal Dilator with Upper and Lower Wings with Attached Wings", invented by Chinese inventors Zhang Xingxing and Lin Jing's team, was first proposed at home and abroad to set upper and lower attached wings on the inner surface of the upper and lower wings. The problem is that the upper and lower attached wings are provided with multiple protrusions on the outer side and installed in the corresponding grooves on the inner side of the upper and lower wings for receiving the protrusions, or by providing multiple snaps on the outer side of the upper and lower attached wings and installing them in the corresponding snap seats on the inner side of the upper and lower wings for receiving the snaps. In this way, the upper and lower attached wings occupy the entire arc space of the upper and lower wings. This design also makes it difficult to connect the upper and lower attached wings with the rear end pipeline as a whole, and its installation is also inconvenient.

[0009] 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

[0010] The object of the present invention is to provide a self-destructive surgical speculum with attached wings which can overcome the defects of the prior art.

[0011] In order to achieve the above-mentioned purpose, the technical solution of the present invention provides an upper wing-type self-destructive surgical speculum, comprising an upper expansion piece and a lower expansion piece, wherein the upper expansion piece comprises an upper wing and a handle, an upper wing is provided on the inner surface of the upper wing, and the lower expansion piece comprises a lower wing and a handle, and the two sides of the rear ends of the upper wing and the lower wing are respectively connected by pins, characterized in that: it also includes an upper wing with a channel, the channel consists of a channel body and a cover plate, the edge of the channel body is provided with a cover plate groove, the cover plate groove cooperates with the staples on the cover plate, the middle front part of the cover plate is also provided with N openings facing the vagina, the rear end of the channel is a pipe joint, and a buckle is provided on the front above the channel body, and the buckle removably places the upper wing on the upper wing positioning groove, and the upper wing can be rotated to the left or right on the inner surface of the upper wing at an angle of >25°, and the upper and lower expansion pieces are fixed by a hook expansion positioning self-destruct device;

[0012] The hook-and-buckle expansion positioning self-destruct device comprises a positioning seat fixed on the side hole of the handle, and a self-destruct strip and a positioning rod are arranged in front and back above the positioning seat. The positioning rod passes through the side hole of the handle, and a positioning hook is provided on the back of the rod, which can engage with the positioning buckle at the end of the handle hole, and at least one of the self-destruct strip and the positioning rod should be elastic.

[0013] Preferably, the upper expansion piece comprises: an upper wing, and a handle integral with the upper wing and extending backward along the left end of the upper wing, the handle is provided with a handle hole and a positioning buckle, the positioning buckle is arranged at the end of the handle hole, and a positioning groove is arranged in the middle above the upper wing;

[0014] 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 is provided with a handle side hole, an inclined pad and a convex protrusion. The inclined pad is at the end of the handle side hole, and the convex protrusion is arranged in front of the handle side 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" horizontally. 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 rear is the positioning rod.

[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 vaginal dilator further comprises an expansion self-destruction device, which comprises a thin sheet with at least one side fixed on the handle and a stamp strip corresponding to the position of the thin sheet on the handle.

[0019] Preferably, 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.

[0020] Preferably, the front end of the upper wing is closed or open, the rear end is open, and the cross section thereof is U-shaped, inverted mouth-shaped or truncated circular.

[0021] Preferably, the rear end of the upper wing also has a pipeline connected to the pipe joint, including single-way, double-way, three-way and multi-purpose pipelines.

[0022] 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.

[0023] 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.

[0024] When using the upper-wing self-destructive surgical speculum of the present invention, the upper and lower wings are placed in a closed state and inserted into the vagina, and the handle is pressed to open the upper and lower wings to the desired field of view, and the field of view is maintained by engaging the positioning hook and the positioning buckle. While the handle is pressed, the punch strip on the handle can automatically pierce the thin sheet on the handle to self-destruct and cannot be restored, indicating that the dilator has been clinically used, and more intuitively reminds people to avoid secondary use. It is very simple and practical, and does not affect the doctor's observation and inspection of the vagina and cervix through the field of view and the operation. At the end of the operation, the doctor gently pushes the push handle forward with his hand. The self-destruct strip is squeezed by the front wall of the hole next to the handle, and its root breaks immediately and self-destructs, and cannot be restored. At the same time, the thrust is transmitted from the positioning rod to the positioning seat through the lever action of the inclined pad and the design of the positioning seat that is thick in front and thin in the back, so that the positioning seat immediately slips out of the hole next to the handle and the inclined pad and self-destructs. The positioning rod is out of place, and the positioning hook immediately disengages from the positioning buckle and self-destructs. The three self-destruct almost at the same time, and the upper and lower wings close automatically. The doctor can then remove the vaginal dilator from the vagina.

[0025] Because good dilation is necessary for gynecological and obstetric transvaginal examinations and surgeries so that doctors can have a full field of vision, it is necessary to set the dilator on one side of the dilator to facilitate doctors to perform right-handed surgeries (because there are very few left-handed doctors, and even if there are left-handed doctors, they will change their habits and hold the dilator with their left hand and perform surgery with their 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 gynecological and obstetric transvaginal surgeries. Therefore, the vaginal dilator can be manufactured into a surgical type for various clinical gynecological and obstetric transvaginal surgeries.

[0026] 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 disposable vaginal speculum without deformation. When the deformation is implemented, no additional operation steps are required for the doctor, no additional effort is required, no additional time is required, and no additional pain is caused to the patient. It is safe and reliable to use. When the operation is finished, just push the push handle forward gently, and the self-destruct strip will immediately break and self-destruct, and the positioning seat will slip out of the side hole of the handle and the inclined pad and self-destruct. After self-destruction, it cannot be restored and cannot be used again, so as to achieve the purpose of eliminating cross infection of medical-induced diseases and improve the safety of clinical use and patients. The disposable vaginal speculum of the present invention also has the advantages of simple structure and easy manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A cross-sectional view of a self-destructive surgical speculum with attached wings according to the present invention;

[0028] Figure 2 for Figure 1 A sectional view of the upper wing;

[0029] Figure 3 for Figure 2 A partial enlarged view of the cover plate staples;

[0030] Figure 4 This is a schematic diagram of the expansion piece on the vaginal dilator;

[0031] Figure 5 This is a schematic diagram of the lower expansion piece of the vaginal dilator;

[0032] Figure 6 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 upper wing self-destructive surgical speculum of this embodiment 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, a handle hole 01-8 is provided on the handle 01-2, a positioning buckle 01-9 is provided at the end of the handle hole 01-8, and a thin sheet 01-6 is provided in front of the handle hole 01-8; a lower wing 02-1 and a handle 02-2 which is integral with the lower wing 02-1 and extends downward, and the handle 02-2 A handle side hole 02-8, a stamp bar 02-6 and an inclined pad 02-9 are provided on the upper side, and preferably a convex protrusion 02-7 is also provided; the convex protrusion 02-7 is provided in front of the handle side hole 02-8, the stamp bar is provided in front of the handle side hole 02-8 and the convex protrusion 02-7, and the inclined pad 02-9 is provided 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 opening between the upper and lower wings, so that 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 hook expansion positioning self-destruct device 09, please refer to the attached Figure 1 , 6 The device combines the expansion fixing and positioning function for fixing the upper wing 01-1 and the lower wing 02-1 in the open state and the function of self-destruction immediately after use. The expansion positioning and 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 arc-shaped positioning rod 09-13 extending upward, and a self-destruction strip 09-16 located in front of the positioning rod 09-13. The upper end of the positioning rod 09-13 is a push handle 09-15. The back of the positioning rod 09-13 is provided with a positioning hook 09-14. The positioning hook 09-14 is engaged with the positioning buckle 01-9 at the end of the handle hole 01-8. The doctor can quickly fix, adjust and fix according to the size of the surgical scope.

[0036] In another 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, which is located on the positioning seat 09-12 and in front of the positioning rod 09-13. 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 02-2. The self-destruction strip 09-16 is also an upward extension of the positioning seat 09-12 like the positioning rod 09-13. It is located above the positioning seat 09-12, with the front close to the front wall of the handle side hole 02-8, and the back is the positioning rod 09-13. The surface is provided with a positioning hook 09-14 which can mesh with the positioning buckle 01-9 at the end of the handle hole 01-8. The positioning rod 09-13 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 positioning rod 09-13 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 positioning rod 09-13 should be elastic. Due to the front and rear tension of the self-destruct strip 09-16 and the positioning rod 09-13, 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, the push handle 09-15 and the positioning rod 09-13 exert a force on the self-destruct strip 09-16, and the abdomen is squeezed by the front wall of the handle side hole 02-8, causing the root to "fracture" and break immediately. In addition, the positioning rod 09-13 is leveraged through the positioning seat 09-12 and the inclined pad 02-9, causing the positioning seat 09-12 to slip out of the impact force, causing the root of the self-destruct strip 09-16 to "fracture" and break immediately. Therefore, the "fracture" of the self-destruct strip 09-16 is almost simultaneous with the positioning seat 09-12 slipping out of the handle side hole 02-8 and the inclined pad 02-9. After the positioning rod 09-13 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.

[0037] 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 02-2), 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.

[0038] Please refer to the attached Figure 1-3 According to a preferred embodiment of the present invention, an upper wing 05 is provided on the inner surface of the upper wing. The channel 05-2 in the upper wing 05 is composed of a channel body 05-1 and a cover plate 05-3. A channel body cover plate groove 05-7 is provided on the edge of the channel body 05-1. The cover plate 05-3 is provided with a cover plate clamp 05-6. The cover plate 05-3 can be quickly and accurately docked and fixed with the channel body cover plate groove 05-7 through the cover plate clamp 05-6. Because the cover plate 05-3 and the channel body 05-1 are separated before installation, it is very convenient to install LEDs and lay power lines. After sealing, smoke can be discharged at the same time. This embodiment (such as Figure 2 (As shown) the cover plate is provided with five openings 05-4 facing the vagina, the purpose of which is to quickly remove smoke when the upper wing is used for smoke removal during LEEP surgery.

[0039] According to a preferred embodiment of the present invention, a buckle 05-8 is provided on the front above the channel body 05-1, and the buckle detachably places the upper wing 05 on the upper wing positioning groove 01-5. The upper wing 05 can be rotated to the left or right at an angle of >25° on the inner surface of the upper wing 01-1, which is very beneficial for lighting, photographing and smoke discharge of various parts of the vagina.

[0040] The channel body 05-1 is much longer in the longitudinal direction than in the transverse direction, and its cross-sectional shape can be U-shaped, inverted П-shaped or truncated circular. There is at least one opening 05-4 (five are shown in the figure) on the cover plate 05-3 on the upper wing 05, that is, on the side facing the vagina. The axial front end of the channel body 05-1 can be closed or open, and the rear end is a pipe joint 05-5, so as to facilitate connection with the negative pressure device 21 through a hose (including a single-way, double-way, three-way or multi-functional hose).

[0041] In another preferred embodiment, please refer to the attached Figure 1 , 4-5, the expansion self-destruction device comprises a thin sheet 01-6 provided on the push handle 01-2 and a stamping strip 02-6 provided on the grip 02-2, and has an expansion self-destruction function of automatically and synchronously destroying the shape during expansion. During the expansion process, the stamping strip 02-6 on the grip 02-2 will immediately pierce the thin sheet 01-6 on the push handle 01-2 to achieve self-destruction, which is very practical clinically. It can be clearly seen with the naked eye that the expander has been used clinically and will not be used again.

[0042] In another preferred embodiment, please continue to see Figure 5 A double-layer handle side hole 02-8 is provided on the outside of the middle part of the handle 02-2, the bottom layer is larger than the upper layer, and an inclined pad 02-9 is provided at the bottom of the hole. This design, which pays attention to even the details, makes the bottom layer 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 a treasure gourd shape, and the positioning seat 09-12 of the treasure gourd shape corresponding to the bottom layer shape is firmly installed in the handle side hole 02-8, ensuring 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, through the transmission of the positioning rod 09-13 and under the leverage of the inclined pad 02-9, causing the positioning rod 09-13 to be out of position, and the positioning rod 09-13 to be separated from the positioning buckle 01-9 and can no longer be tightly engaged with the positioning buckle 01-9, thereby losing the expansion and positioning functions. The three self-destruct at the same time and cannot be restored, so that they can only be used once, thereby achieving the purpose of eliminating cross-infection of medical diseases.

[0043] It should be understood that as long as the vaginal dilator has the basic element of the upper wing 01-1 (the buckle of the upper wing can be directly hung on the upper wing) or the upper wing positioning groove 01-5, then the upper wing 05 with the buckle 05-8 can be removably installed on the vaginal dilator with the upper wing 01-1 or the upper wing positioning groove 01-5.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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. An upper wing-attached self-destructive surgical speculum, comprising an upper expansion piece and a lower expansion piece, wherein the upper expansion piece comprises an upper wing and a handle, an upper wing is provided on the inner surface of the upper wing, and the lower expansion piece comprises a lower wing and a handle, and the two sides of the rear ends of the upper wing and the lower wing are connected by pins respectively, characterized in that: It also includes an upper attached wing with a channel, the channel is composed of a channel body and a cover plate, the edge of the channel body is provided with a cover plate groove, the cover plate groove is matched with the clamp on the cover plate, the middle front part of the cover plate is also provided with N openings facing the vagina, the rear end of the channel is a pipe joint, and the front of the upper part of the channel body is provided with a buckle, the buckle can detachably place the upper attached wing on the upper wing positioning groove, the upper attached wing can be rotated to the left or right at an angle of >25° on the inner surface of the upper wing, and the upper and lower expansion plates are fixed by a hook expansion positioning self-destruction device; The hook-and-buckle expansion positioning self-destruction device comprises a positioning seat fixed on the side hole of the handle, and a self-destruction strip and a positioning rod are arranged in front and back above the positioning seat. The positioning rod passes through the side hole of the handle, and a positioning hook is provided on the back of the rod, which can be engaged with the positioning buckle at the end of the handle hole, and at least one of the self-destruction strip and the positioning rod should be elastic; The upper expansion piece includes: an upper wing, and a handle integral with the upper wing and extending backward along the left end of the upper wing, the handle is provided with a handle hole and a positioning buckle, the positioning buckle is arranged at the end of the handle hole, and a positioning groove is arranged in the middle of the upper part of the upper wing; 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 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.

2. The self-destructive surgical speculum with upper wings 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 rear is the positioning rod.

3. The self-destructive surgical speculum with attached wings 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.

4. The self-destructive surgical speculum with upper wings according to any one of claims 1 to 2, characterized in that: The self-destructive surgical speculum with upper wings also includes an expansion self-destruct device, which includes a thin sheet with at least one side fixed on the handle and a stamp bar corresponding to the position of the thin sheet on the handle.

5. The self-destructive surgical speculum with upper wings according to any one of claims 1 to 2, characterized in that: The pin shaft 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 self-destructive surgical speculum with upper wings according to claim 1, characterized in that: The front end of the upper attached 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 self-destructive surgical speculum with upper wings according to claim 1, characterized in that: The rear end of the upper attached wing is also provided with a pipeline connected with the pipe joint, including single-way, double-way, three-way and multi-purpose pipelines.

8. The self-destructive surgical speculum with upper wings according to claim 1, characterized in that: The upper attached wings 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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