CN111990957A - Self-destruction and instant-destruction disposable vaginal dilator - Google Patents

Abstract

The invention discloses a self-destruction and instant-destruction disposable vaginal dilator. The disposable vaginal dilator of the present invention comprises an upper dilator sheet and a lower dilator sheet, the upper dilator sheet comprising: the upper wing and a press handle connected with the upper wing; the vaginal dilator further comprises a dilation positioning destroying device which is a hook-and-loop positioning self-destroying device or a spiral positioning instant destroying device. The vaginal dilator of the invention realizes the same destruction and non-restorable disposable vaginal dilator in the whole operation process, flow and time consumption, and avoids secondary use, thereby avoiding the cross infection of iatrogenic diseases, and having simple and practical structure, easy and economic manufacture, safe and effective use.

Description

Self-destruction and instant-destruction disposable vaginal dilator

Technical Field

The invention relates to a vaginal speculum for obstetrics and gynecology department of medical apparatus, in particular to a self-destruction and instant-destruction disposable vaginal dilator.

Background

A vaginal speculum, also known as a vaginal dilator, is a common examination and surgical instrument used in obstetrics and gynecology and family planning. Used for dilating the vagina to expose the examination site or the operation site. Before the eighties of the twentieth century, our country has not used disposable vaginal dilator but used expensive spiral metal vaginal dilator, and through domestic and foreign literature search, the U.S. patent office recorded that in 1949, John l.marco invented a colposcope "vaginal speculum" (patent No. 2544932), that in that year said colposcope actually was a vaginal speculum, also called vaginal dilator, the dilation fixing device consisted of screw cap and positioning rod, etc., one vaginal dilator had more than ten parts, metal material, high cost, time consuming operation, after use, it was used for next patient after cleaning and high temperature disinfection, there was a hidden danger of cross infection of iatrogenic diseases, until 1989, the chinese national intellectual property office recorded that disposable aseptic vaginal dilator (patent name "vaginal dilator, -patent No. 891083928), a vaginal dilator not only simplified to only have two expansion pieces of upper and lower totally, and the fixed structure simplified to only have two parts totally, one is by the upper expansion piece that contains the hook, one is by the lower expansion piece that contains the buckle, can reach the examination type originally invented by the american people and need 11 parts, the operation type needs 9 parts can make the upper and lower both wings open the angle to reach >40 degrees function, >40 degrees have very big benefit clinically, relate to the safety and effectiveness of the medical instrument, it can expand the vagina effectively, expose the cervix uteri, the favorable examination, the favorable diagnosis and treatment, the favorable operation, the design is scientific and reasonable, and can single-hand operation, high-efficient and convenient, cheap and good, can make the disposable use, can also stop the cross infection of the endogenous medical disease.

Later, the inventor of Linjing and Zhang Xingxing originally invents an instant disposable sterile vaginal dilator (the patent name is 'instant painless and noiseless disposable vaginal dilator' and the patent number is 200420116743.7) in 2004 for preventing secondary use, and the principle is that an 'instant belt' is arranged at the non-stressed part of a dilator handle or a press handle, and the 'instant belt' is broken to realize destruction and achieve the purpose of being incapable of being used again.

There is therefore a need to develop further disposable vaginal dilators.

Disclosure of Invention

The invention aims to provide a self-destruction and instant-destruction disposable vaginal dilator.

The invention provides a self-destruction and instant-destruction disposable vaginal dilator, which comprises an upper dilation sheet and a lower dilation sheet, wherein the upper dilation sheet comprises: the upper wing and a press handle connected with the upper wing; the vaginal dilator is characterized in that the lower expansion piece comprises a lower wing and a grab handle connected with the lower wing, two sides of the rear end of the upper wing and the rear end of the lower wing are respectively connected through a pin shaft to form a visual field port between the upper wing and the lower wing, and the vaginal dilator further comprises an expansion positioning destroying device which is a hook buckle positioning self-destroying device or a spiral positioning instant destroying device.

In another preferred embodiment, the upper expansion piece includes: the upper wing and the pressing handle extend leftwards and rightwards from the rear end of the upper wing in a circular arc shape, are connected into a whole at the middle position and then continue to extend downwards; the lower expansion sheet comprises: a lower wing, and a grip integral with the lower wing and extending downwardly in a central position.

In another preferred embodiment, the upper expansion piece includes: the upper wing and the pressing handle are integrated with the upper wing and extend backwards along the tail end of one side of the upper wing; the lower expansion sheet comprises: the lower wing and a grab handle which is integrated with the lower wing and extends downwards from the rear end of the lower wing. In another preferred embodiment, the pressing handle is arranged on the right side or the left side of the dilator. When the pressing handle is arranged at the right side of the dilator, the dilator is used as an examination type vaginal dilator. The handle, when positioned on the left side of the dilator, serves as a surgical dilator.

In another preferred embodiment, the upper wing and the press handle are integral. In another preferred embodiment, the lower wing and the grip are integral.

In another preferred embodiment, a shaft pin is arranged between the upper wing and the pressing handle, and a shaft hole is arranged between the lower wing and the holding handle; or a shaft hole is arranged between the upper wing and the pressing handle, and a shaft pin is arranged between the lower wing and the grab handle.

In another preferred embodiment, the expanding, positioning and destroying device is a hook buckle positioning and self-destroying device, the hook buckle positioning and self-destroying device comprises a positioning seat fixed on a handle hole of the handle, self-destroying strips and positioning rods are arranged on the positioning seat in front and at the back, and the back of each positioning rod is provided with a positioning hook capable of being engaged with the positioning buckle at the tail end of the handle hole. The positioning rod is penetrated with a pressing handle hole on the pressing handle, and the positioning hook is meshed with the positioning buckle.

In another preferred embodiment, the expansion positioning destroying device is a spiral positioning destroying device, the spiral positioning destroying device comprises a positioning seat fixed on a handle hole of the handle, self-destroying strips and a screw rod are arranged on the positioning seat in the front and at the back, the lower part of the screw rod is provided with a screw rod front dome capable of accommodating the self-destroying strips, the top of the screw rod is a push handle, and the screw rod is threaded through a handle hole on the handle and is screwed and fixed with a screw cap.

In another preferred embodiment, the upper expansion piece includes: the upper wing and the pressing handle extend in a left and right circular arc shape from the rear end of the upper wing and continue to extend downwards after being connected into a whole at the middle position, a pressing handle hole and a positioning buckle are arranged on the pressing handle, and the positioning buckle is arranged at the tail end of the pressing handle hole; the lower expansion sheet comprises: the lower wing and the grab handle which is integrated with the lower wing and extends downwards in the middle position are arranged on the grab handle, a grab handle hole and an inclined pad are arranged on the grab handle, and the inclined pad is arranged at the tail end (or called as the rear end, the same applies below) of the grab handle hole; the expansion positioning destruction device is a hook buckle positioning self-destruction device, the hook buckle positioning self-destruction device comprises a positioning seat, self-destruction strips and a positioning rod are arranged on the positioning seat in the front and at the back, a positioning hook capable of being meshed with a positioning buckle at the tail end of a press handle hole is arranged on the back of the positioning rod, the positioning seat is arranged in a handle holding hole and an inclined pad, and the press handle hole on the press handle is penetrated on the positioning rod. In another preferred embodiment, at least one of the self-destruction strip and the positioning rod should have elasticity. In another preferred embodiment, the middle part of the grab handle is provided with a double-layer grab handle hole, the bottom layer is larger than the upper layer, and the shape of the bottom layer is consistent with that of the positioning seat. In another preferred embodiment, the slanted pad is disposed at the end of the bottom layer (or referred to as the back end, the same applies below). In another preferred example, the top end of the self-destruction strip extends forwards to form a crown. In another preferred embodiment, the handle is optionally provided with a protrusion arranged in front of the handle hole, and the crown is buckled with the protrusion arranged in front of the handle hole.

In another preferred embodiment, the upper expansion piece includes: the upper wing and the pressing handle are integrated with the upper wing and extend backwards along the tail end of one side of the upper wing, a pressing handle hole and a positioning buckle are arranged on the pressing handle, and the positioning buckle is arranged at the tail end of the pressing handle hole; the lower expansion sheet comprises: the lower wing and the grab handle are integrated with the lower wing and extend downwards from the rear end of the lower wing, the grab handle is provided with a grab handle hole and an inclined pad, and the inclined pad is arranged at the tail end of the grab handle hole; the expansion positioning destruction device is a hook buckle positioning self-destruction device, the hook buckle positioning self-destruction device comprises a positioning seat, self-destruction strips and a positioning rod are arranged in front of and behind the positioning seat, a positioning hook capable of being meshed with a positioning buckle at the tail end of a press handle hole is arranged on the back of the positioning rod, the positioning seat is arranged in a handle holding hole and an inclined pad, and the press handle hole in the press handle is penetrated on the positioning rod. In another preferred embodiment, the pressing handle is arranged on the right side or the left side of the dilator. In another preferred embodiment, at least one of the self-destruction strip and the positioning rod should have elasticity. In another preferred embodiment, the middle part of the grab handle is provided with a double-layer grab handle hole, the bottom layer is larger than the upper layer, and the shape of the bottom layer is consistent with that of the positioning seat. In another preferred embodiment, the slanted pad is disposed at the end of the bottom layer (or referred to as the back end). In another preferred example, the top end of the self-destruction strip extends forwards to form a crown. In another preferred embodiment, the handle is optionally provided with a protrusion arranged in front of the handle hole, and the crown is buckled with the protrusion arranged in front of the handle hole.

In another preferred embodiment, the upper expansion piece includes: the upper wing and the pressing handle extend leftwards and rightwards from the rear end of the upper wing in a circular arc shape, are connected into a whole at the middle position and then continue to extend downwards, and a pressing handle hole is formed in the pressing handle; the lower expansion sheet comprises: the lower wing and the grab handle which is integrated with the lower wing and extends downwards in the middle position are arranged on the grab handle, a grab handle hole and an inclined pad are arranged on the grab handle, and the inclined pad is arranged at the tail end of the grab handle hole; the expansion positioning destroying device is a spiral positioning destroying device, the spiral positioning destroying device comprises a positioning seat, self-destroying strips and a screw rod capable of being screwed with a screw cap for positioning are arranged on the positioning seat in the front and at the back, the lower part of the screw rod is provided with a screw rod front dome capable of accommodating the self-destroying strips, and the top of the screw rod is provided with a push handle; wherein, the positioning seat is arranged in the handle hole and the inclined pad, and the screw rod is penetrated with the handle hole on the handle. In another preferred embodiment, at least one of the self-destructive strip and the screw should be elastic. In another preferred embodiment, the middle part of the grab handle is provided with a double-layer grab handle hole, the bottom layer is larger than the upper layer, and the shape of the bottom layer is consistent with that of the positioning seat. In another preferred embodiment, the slanted pad is disposed at the end of the bottom layer (or referred to as the back end). In another preferred example, the top end of the self-destruction strip extends forwards to form a crown. In another preferred embodiment, the handle is optionally provided with a protrusion arranged in front of the handle hole, and the crown is buckled with the protrusion arranged in front of the handle hole.

In another preferred embodiment, the upper expansion piece includes: the upper wing and the pressing handle are integrated with the upper wing and extend backwards along the tail end of one side of the upper wing, and a pressing handle hole is formed in the pressing handle; the lower expansion sheet comprises: the lower wing and the grab handle are integrated with the lower wing and extend downwards from the rear end of the lower wing, the grab handle is provided with a grab handle hole and an inclined pad, and the inclined pad is arranged at the tail end of the grab handle hole; the expansion positioning destroying device is a spiral positioning destroying device, the spiral positioning destroying device comprises a positioning seat, self-destroying strips and a screw rod capable of being screwed with a screw cap for positioning are arranged on the positioning seat in the front and at the back, the lower part of the screw rod is provided with a screw rod front dome capable of accommodating the self-destroying strips, and the top of the screw rod is provided with a push handle; wherein, the positioning seat is arranged in the handle hole and the inclined pad, and the screw rod is penetrated with the handle hole on the handle. In another preferred embodiment, at least one of the self-destructive strip and the screw should be elastic. In another preferred embodiment, the pressing handle is arranged on the right side or the left side of the dilator. In another preferred embodiment, the middle part of the grab handle is provided with a double-layer grab handle hole, the bottom layer is larger than the upper layer, and the shape of the bottom layer is consistent with that of the positioning seat. In another preferred embodiment, the slanted pad is disposed at the end of the bottom layer (or referred to as the back end). In another preferred example, the top end of the self-destruction strip extends forwards to form a crown. In another preferred embodiment, the handle is optionally provided with a protrusion arranged in front of the handle hole, and the crown is buckled with the protrusion arranged in front of the handle hole.

In another preferred example, the vaginal dilator further comprises a self-destruction expanding device, and the self-destruction expanding device comprises a thin sheet arranged on the press handle and a poking strip arranged on the handle. In another preferred embodiment, the upper part of the press handle is provided with a sheet with at least one side fixed. In another preferred embodiment, the upper part of the handle is provided with a poking strip corresponding to the position of the sheet.

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

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

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

In another preferred embodiment, the middle part of the grab handle is provided with a nearly circular grab handle hole, the grab handle is designed in a double-layer mode, the bottom layer is larger than the upper layer, the shape of the bottom layer is consistent with that of the positioning seat, and the shape of the upper layer is not limited. In another preferred embodiment, the slanted pad is disposed at the end of the bottom layer (or referred to as the back end).

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

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

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

In another preferred embodiment, the pin shaft has two large ends, a small middle part, a solid middle lower part and an elastic middle upper part, the diameter of the edge of the split piece is slightly larger than that of the split piece, and the whole pin shaft is in a dumbbell shape.

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

When in use, the upper wing and the lower wing are in a closed state and put into the vagina, the pressing handle is pressed down to open the upper wing and the lower wing to the required visual field, the visual field range is kept through the engagement of the positioning hook and the positioning buckle, and at the moment, the vagina and the cervix uteri can be observed and checked through the visual field port or an operation can be carried out. When the examination or operation is finished, the doctor pushes the push handle forward slightly by hand, the self-destruction strip is extruded by the front wall of the handle hole, the root part of the self-destruction strip is broken immediately and self-destructed and cannot be recovered, meanwhile, the pushing force passes through the positioning rod to the positioning seat, the positioning seat slips from the handle hole and the inclined pad to self-destruct through the lever action of the inclined pad and the design of the front part of the positioning seat being thick and the rear part being thin, the positioning seat loses position, the positioning hook is disengaged from the positioning buckle immediately and self-destructed, the three are self-destructed at the same time, the upper wing and the lower wing are closed automatically, and the doctor can.

When the vaginal dilator comprising the spiral positioning and instant destroying device is used, the upper wing and the lower wing are in a closed state and are put into a vagina, the pressing handle is pressed down, the screw cap is rotated downwards on the screw rod, the upper wing and the lower wing are opened to a required visual field and are fixed, and at the moment, the vagina and the cervix uteri can be observed, examined or an operation can be carried out through the visual field. After the examination or operation is finished, the doctor takes out the expander from the vagina, the nut is screwed to the closed position of the upper wing and the lower wing, then the push handle or the nut is pushed forward gently, the self-destruction strip is extruded by the front wall of the handle hole, the root part of the self-destruction strip is broken immediately to self-destroy and cannot be restored, meanwhile, the pushing force passes through the lever action of the inclined pad and the design that the front part of the positioning seat is thick and the rear part of the positioning seat is thin through the screw to the positioning seat, so that the positioning seat slips from the handle hole and the inclined pad at once to self-destroy, the screw self-destroys along with the slipping and dislocation.

In addition, when the expansion positioning destroying device is arranged at one side of the expander, the maximum opening angle of the upper wing and the lower wing can reach more than 40 degrees, namely, when the positioning hook and the positioning buckle of the hook buckle expansion positioning destroying device are meshed and expanded to the maximum gear, the opening angle of the upper wing and the lower wing can reach more than 40 degrees, and the positions of the positioning hook and the positioning buckle can be interchanged; when a screw rod and a screw cap of the spiral expanding and positioning instant destroying device are screwed and expanded to the maximum gear, the opening angle of the upper wing and the lower wing can reach more than 40 degrees; namely, even if the dilator comprises the dilation positioning destroying device, the dilator still has wide visual field when in use, the maximum opening angle of the upper wing and the lower wing can reach more than 40 degrees, the vagina and the cervix can be fully exposed, and the dilator is very beneficial to various examinations and operations of obstetrics and gynecology. Therefore, the vaginal dilator can be produced into an operation type (the pressing handle is arranged on the left side of the dilator) for various clinical gynecological transvaginal operations, and can also be produced into an examination type (the pressing handle is arranged on the right side of the dilator) for various clinical gynecological transvaginal examinations.

Obviously, the invention overcomes the defects of the prior art, provides the self-destruction type and instant-destruction type disposable vaginal dilator which has simple structure and convenient operation, and when in use, all the processes, steps and time consumption are completely the same as those of the non-destruction type disposable vaginal speculum, does not need to add extra operation steps for doctors when in destruction, does not add extra force or extra time consumption, does not increase the pain of patients, and is safe and reliable to use. When the operation is finished, the pushing handle is pushed forward slightly (the screw cap can be pushed for the spiral positioning instant destroying device), the self-destroying strip is broken immediately and the positioning seat slips from the handle hole and the inclined pad to be self-destroyed, and the self-destroying strip cannot be restored and cannot be used for the second time after self-destroying, so that the aim of avoiding cross infection of iatrogenic diseases is fulfilled, and the clinical use and the safety of patients are improved. The disposable vaginal dilator also has the advantages of simple structure and easy manufacture.

In addition, the vaginal dilator further comprises a dilation self-destruction device, when in use, the vaginal dilator is placed in a vagina, the pressing handle is pressed down to open the upper wing and the lower wing to a required visual field, the visual field range is kept after positioning, and a doctor can observe and inspect the vagina and the cervix or perform an operation through the visual field port. In the process, the poking strip on the grab handle can puncture the sheet on the grab handle to be self-destroyed and can not be recovered, the dilator is clinically used, and people can be more intuitively and clearly indicated to avoid secondary use.

It is to be understood that within the scope of the present invention, the above-described features of the present invention and those specifically described below (e.g., in the examples) may be combined with each other to form new or preferred embodiments. Each feature disclosed in this specification may be replaced by an alternative feature serving the same, equivalent, or similar purpose. Not to be reiterated herein, but to the extent of space.

Drawings

Figure 1 is a view in a closed state and a cross-sectional view of the vaginal speculum of example 1 before use and when entering the vagina.

Fig. 2 is a view showing the vaginal speculum of example 1 in an expanded state and in a sectional view.

Fig. 3 is a sectional view showing a closed state after the vaginal speculum of example 1 is used.

Fig. 4 is a schematic structural view of the upper and lower dilation plates of the vaginal speculum of example 1.

FIG. 5 is a schematic view of the expanding, positioning and destroying device.

Fig. 6 is a schematic view and a sectional view of the vaginal dilator of example 2 in a closed state before use.

Fig. 7 is a schematic structural view and a sectional view of the vaginal dilator of example 2 in an expanded state in use.

Fig. 8 is a cross-sectional view of the closed state of the vaginal dilator of example 2 after use.

Fig. 9 is a schematic structural view of the upper and lower expansion pieces.

FIG. 10 is a schematic view of the expanding positioning and destroying device.

Fig. 11 is a view of the closed state of the vaginal dilator of example 3 when not in use and into the vagina, and the expanded state when in use.

Fig. 12 is a schematic view of the vaginal dilator of example 3 with the dilation state adjusted from step to step in use.

Figure 13 is a closed state view of the vaginal dilator of example 3 after use.

FIG. 14 is a schematic view of the expanding positioning and destroying device.

Fig. 15 is a view of the closed state of the vaginal dilator of example 4 when not in use and into the vagina, and the expanded state when in use.

Fig. 16 is a schematic view of the vaginal dilator of example 4 with the dilation state adjusted from step to step during use.

Figure 17 is a closed state view of the vaginal dilator of example 4 after use.

FIG. 18 is a schematic view of the expanding positioning and destroying device.

FIG. 19 is a closed state view and a cross-sectional view of the vaginal dilator of example 5 not in use.

Fig. 20 is a view showing the expanded state and a sectional view of the vaginal dilator of example 5 in use.

Fig. 21 is a cross-sectional view of the closed state of the vaginal dilator of example 5 after use.

FIG. 22 is a schematic view of the structure of the upper and lower dilation pieces.

FIG. 23 is a closed state view and a cross-sectional view of the vaginal dilator of example 6 not in use.

FIG. 24 is a view showing the expanded state and a sectional view of the vaginal dilator of example 6 in use.

Figure 25 is a closed state view of the vaginal dilator of example 6 after use.

FIG. 26 is a schematic view of the upper and lower expansion plates.

FIG. 27 is a view of the vaginal dilator of example 7 in a closed state when not in use and into the vagina, and in an expanded state when in use.

FIG. 28 is a schematic view showing the step-by-step adjustment of the expansion state of the vaginal dilator of example 7 in use.

FIG. 29 is a closed state view of the vaginal dilator of example 7 after use.

FIG. 30 is a view of the vaginal dilator of example 8 in a closed state when not in use and into the vagina, and in an expanded state when in use.

Fig. 31 is a schematic view of the vaginal dilator of example 8 in use with the dilation state adjusted step by step.

FIG. 32 is a view of the closed state of the vaginal dilator of example 8 after use.

Fig. 33 is a schematic view of a surgical dilator with a hook and loop positioned self-destruction device.

Fig. 34 is a schematic structural view of the upper and lower stent sections of the surgical stent.

FIG. 35 is a schematic view of a surgical dilator having a helically positioned self-destructing device.

Detailed Description

The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. In addition, any methods and materials similar or equivalent to those described herein can be used in the methods of the present invention. The preferred embodiments and materials described herein are intended to be exemplary only.

Herein, the vaginal speculum and the vaginal dilator have the same meaning. The buckle self-destruction type can also be called a hook self-destruction type.

Example 1

Middle buckle self-destruction disposable vaginal speculum

Referring to the attached drawings 1 and 4, the middle buckle self-destruction disposable vaginal speculum comprises an upper expansion sheet and a lower expansion sheet, wherein the upper expansion sheet comprises an upper wing 1 and a pressing handle 5 which is integrated with the upper wing 1, extends from the rear end of the upper wing in a left-right arc shape, and continues to extend downwards after being connected into a whole at the middle position; the lower expansion piece comprises a lower wing 2 and a grip 6 integral with the lower wing 2 and extending downward in the central position. The two sides of the rear ends of the upper wing 1 and the lower wing 2 are respectively connected with the shaft pin 4 through the shaft hole 3 and form a visual field opening 19 between the upper wing and the lower wing, so that the upper wing and the lower wing can be opened and closed through the control press handle 5. As shown in fig. 4, the handle 5 is provided with a handle hole 9 and a positioning buckle 18, and the positioning buckle 18 is arranged at the tail end of the handle hole 9. The handle 6 is provided with a handle hole 10 and an inclined pad 11, and the inclined pad 11 is arranged at the tail end of the handle hole 10.

Referring to fig. 2-3 and 5, the vaginal speculum of the present embodiment includes a dilation positioning destruction device, which is a hook-and-loop positioning self-destruction device, and skillfully combines the dilation positioning function of fixing the opened state of the upper wing 1 and the lower wing 2 with the self-destruction function of self-destruction immediately after use. The expansion positioning destroying device comprises an expansion positioning device which comprises a positioning seat 12 arranged in a handle hole 10 and an inclined pad 11 and an arc positioning rod 13 extending upwards, wherein the upper end of the rod is provided with a push handle 15, the back of the rod is provided with a positioning hook 14 which can be meshed with a positioning buckle 18 at the tail end of a handle hole 9, and a doctor can adjust and fix the expansion positioning destroying device according to the size of an observed field or an operation range. The expanding positioning destroying device further comprises a self-destroying strip 16 which is arranged on the positioning seat 12 and is positioned in front of the positioning rod 13. The locating rod 13 and the self-destruction strip 16 are penetrated through the handle hole 10, the locating seat 12 is arranged in the handle hole 10 and the cushion 11, and at least one of the self-destruction strip 16 and the locating rod 13 has elasticity.

When the doctor finishes using, the doctor pushes the push handle 15 down at the same time, the self-destruction strip 16 can be broken, the positioning seat 12 can be slipped off, the positioning rod 13 loses the function of being matched and fixed with the positioning buckle 18, and the vaginal speculum can be immediately self-destroyed.

According to a preferred embodiment, with continued reference to figures 1-3 and 5, self-destructive strip 16 is a short, small, overall slightly forward-inclined strip, located above positioning socket 12, which is also an extension of positioning socket 12, with the front face abutting against the front wall of grip hole 10 and with positioning rod 13 behind self-destructive strip 16. On one hand, the positioning seat 12 is more firmly fixed in the handle hole 10 due to the front and back tension of the self-destruction strip 16 and the positioning rod 13; on the other hand, when the self-destruction strip 16 is applied with force by the push handle 15 and the positioning rod 13, the belly of the self-destruction strip is extruded by the front wall of the handle hole 10, and the impact when the positioning rod 13 slides off the positioning seat 12 under the lever action of the positioning seat 12 and the inclined pad 11 causes the root of the self-destruction strip 16 to be immediately broken, so that the breakage of the self-destruction strip 16 is almost performed simultaneously with the sliding off of the positioning seat 12 from the handle hole 10 and the inclined pad 11, the positioning rod 13 is dislocated due to the sliding off of the positioning seat 12, the positioning rod 13 and the positioning buckle 18 cannot be meshed, expanded and positioned, all of which are generated and completed in a moment, and the root of the self-destruction strip is broken, so that the self-destruction strip is still connected with the; the positioning rod is always connected with the positioning seat after being out of position and cannot fall down independently, so that a doctor still can use the whole expander when taking out the positioning rod, and the operation is time-saving and labor-saving, simple, practical, safe and effective.

According to a preferred embodiment, the head end of the self-destructive strip 16 extends forward to form a crown 17, so that the self-destructive strip 16 with the crown 17 looks like a "7" in the transverse direction. According to a preferred embodiment, the handle 6 is optionally provided with a convex protrusion 20, the convex protrusion 20 is arranged in front of the handle hole 10, the crown 17 is buckled with the convex protrusion 20 in front of the handle hole 10 in the middle of the handle 6, and the self-destruction strip 16 with the crown 17 is more easily broken and self-destroyed when being pressed by the front wall of the handle hole 10. And when the self-destruction strip with the crown is extruded and broken, the self-destruction strip still breaks at the root, so that the operation is time-saving and labor-saving, simple and convenient, safe and effective.

With continued reference to FIG. 1, according to a preferred embodiment, prior to clinical use, the upper and lower wings 1, 2 are in a closed position; when the self-destruction strip 16 is used clinically, a doctor puts the vaginal speculum into the vagina, the upper wing 1 and the lower wing 2 are still in a closed state, and the self-destruction strip can be seen to be intact.

With continued reference to fig. 2, when the physician is in clinical use, the pressing handle 5 is pressed down by the physician, the upper wing 1 and the lower wing 2 are expanded to the required visual field, the positioning hook 14 enters the positioning buckle 18 to be engaged with each other to fix the upper wing 1 and the lower wing 2, the physician starts to examine, diagnose or perform an operation, and the self-destruction strip 16 is still intact.

With continued reference to FIG. 3, according to a preferred embodiment, when the clinical examination or surgery is completed, the physician pushes the push handle 15 forward slightly, and due to the pushing force and the elastic action of the positioning rod, the positioning rod advances to press the self-destruction strip 16 against the front wall of the handle hole 10, and the root thereof is immediately broken and cannot be restored.

According to a preferred embodiment, with continued reference to fig. 4, the grip 6 is provided with a double grip hole 10 in the middle, the bottom layer being larger than the upper layer, and with a cushion 11 at the rear end of the bottom of the hole, the design being emphasized in detail, on the one hand, allowing for a larger space for the bottom layer than for the upper layer. According to a preferred embodiment, the bottom layer of the handle hole is designed into a treasured gourd shape (two connected unequal-diameter round holes) and can also be designed into other polygonal shapes, the locating seat 12 in the treasured gourd shape or other shapes corresponding to the shape of the bottom layer of the handle hole is firmly installed in the handle hole 10, so that the clinical use safety and reliability are guaranteed, on the other hand, the overall thickness of the locating seat 12 can be reduced due to the design of the upper layer and the lower layer, and the locating seat 12 is enabled to be easily slipped from the handle hole 10 and the cushion 11 to be self-destroyed under the action of pushing force of the pushing handle by the aid of the thick front layer and the thin rear layer of the locating seat 12 and the lever action of the cushion 11, so that the locating seat cannot be used for the second time, and the purpose of avoiding cross infection of iatrogenic diseases is achieved.

With continued reference to fig. 4, according to a preferred embodiment, the shaft pin 4 has two large ends, a small middle part, a solid middle lower part, and a full elasticity in the middle upper part, and the diameter of the edge of the open piece is slightly larger than that of the open piece, and the whole body is dumbbell-like, so that the vaginal dilator with the dumbbell-like shaft pin 4 has the advantages of easy installation, easy and convenient rotation in clinical use, flexibility and freedom, and improved work efficiency of doctors.

Example 2

Middle spiral instantly-destroyed disposable vaginal dilator

Referring to fig. 6 and 9, the middle spiral disposable vaginal dilator comprises an upper dilator sheet and a lower dilator sheet, wherein the upper dilator sheet comprises an upper wing 31 and a press handle 35 which is integrated with the upper wing 31, extends from the rear end of the upper wing in a left-right arc shape, continues to extend downwards after being integrated at the middle position, and a press handle hole 39 is arranged on the press handle 35; the lower expansion piece comprises a lower wing 32 and a handle 36 which is integrated with the lower wing 32 and extends downwards in the middle, the handle 36 is provided with a handle hole 40 and an inclined pad 41, and the inclined pad 41 is arranged at the tail end of the handle hole 40. The two sides of the rear ends of the upper wing 31 and the lower wing 32 are respectively connected with the shaft pin 34 through the shaft hole 33 and form a visual field opening 49 between the upper wing and the lower wing, so that the upper wing and the lower wing can be opened and closed through the control press handle 35.

Referring to fig. 6-8 and 10, the vaginal dilator of this embodiment includes a dilation positioning and destroying device, which is a spiral positioning and destroying device, and skillfully combines the dilation positioning function for fixing the opened state of the upper wing 31 and the lower wing 32 and the destroying function of destroying after use. The expanding, positioning and destroying device comprises an expanding and positioning device which comprises a positioning seat 42 arranged in a handle hole 40 and an inclined pad 41 and an upward extending threaded screw rod 43, wherein the threaded screw rod 43 is matched with a nut 44, and a doctor can adjust and fix the expanding and positioning device according to the size of an observed field or an operation range. The expansion positioning destroying device further comprises a self-destroying strip 46, a screw rod front dome 48 for arranging the self-destroying strip 46 is arranged on the positioning seat 42 and is positioned in front of the screw rod 43, the root part of the screw rod 43 is provided with a screw rod front dome 48, the top part of the screw rod 43 is provided with a push handle 45, the screw rod 43 and the self-destroying strip 46 are penetrated through a handle hole 40, the screw rod 43 is continuously penetrated through a handle hole, the positioning seat 42 is arranged in the handle hole 40 and the inclined pad 41, and at least one of the self-destroying strip and the screw rod has elasticity.

Continuing to refer to fig. 8 and 10, the self-destruction strip 46 is a short, small and slightly forward inclined strip, is located above the positioning seat 42, is also an extension of the positioning seat 42, the front surface of the self-destruction strip clings to the front wall of the handle hole 40, the rear surface of the self-destruction strip is provided with a screw rod front dome 48, when the self-destruction strip is applied with the force of the push handle and the screw rod, the belly of the self-destruction strip is extruded by the front wall of the handle hole, and the screw rod is impacted when the positioning seat slips through the lever action of the positioning seat and the inclined pad, so that the root of the self-destruction strip is broken almost simultaneously with the slipping of the positioning seat from the handle hole and the inclined pad, and the self-destruction strip is broken simultaneously with the slipping of the positioning seat, the screw rod is dislocated, the screw rod and the screw cap cannot.

According to a preferred embodiment, the leading end of the self-destructing strip 46 extends forward to form a crown 47, such that the self-destructing strip 46 with the crown 47 looks like a "7" in the transverse direction. According to a preferred embodiment, the handle 36 is further provided with an optional protrusion 50, the protrusion 50 is arranged in front of the handle hole 40, the crown 47 is engaged with the protrusion 50 in front of the handle hole 40 in the middle of the handle 36, and the self-destruction strip 46 with the crown 47 is more easily broken and self-destroyed when being pressed by the front wall of the handle hole 40.

With continued reference to FIG. 6, according to a preferred embodiment, the upper and lower wings 31, 32 are in a closed position prior to clinical use, and when clinical use is initiated, the physician places the vaginal speculum in the vagina with the upper and lower wings 31, 32 still in the closed position, at which time the self-destructive strip 46 is seen intact.

With continued reference to fig. 7, when the doctor presses the pressing handle 35 in clinical use, the upper wing 31 and the lower wing 32 are expanded to the required visual field, the screw cap 44 is turned into the screw 43 for fixation, and the doctor starts to diagnose or perform an operation, wherein the self-destruction strip 46 is still intact.

With continued reference to fig. 8, and in accordance with a preferred embodiment, upon completion of the clinical examination or procedure, the physician removes the expander, withdraws the nut back to the closed position of the upper and lower wings and presses down (pushes it slightly forward) the push handle 45 or nut 44, whereupon the self-destruct strip 46 is pressed against the front wall of the handle aperture 40 by the pushing and resilient action of the screw 43 and its root is immediately broken and irreparable.

With reference to fig. 9, the middle of the handle 36 is provided with a double-layer handle hole 40, the bottom layer is larger than the upper layer, the rear end of the bottom of the hole is provided with a cushion 41, the design of the detail is emphasized, on one hand, the bottom layer has a larger space than the upper layer, according to a preferred embodiment, the bottom layer of the handle hole is designed into a treasured gourd shape, or other polygonal shapes, and the positioning seat 42 corresponding to the shape of the bottom layer of the handle hole is firmly installed in the handle hole 40, thereby ensuring the safety and reliability of clinical use. On the other hand, the design of the upper layer and the lower layer can reduce the whole thickness of the positioning seat 42, and the design of the positioning seat 42 with thick front and thin back enables the positioning seat 42 to be more easily slipped from the handle hole 40 and the inclined pad 41 to be self-destroyed under the action of forward pushing force of the pushing handle, the transmission of the screw rod 43 and the lever action of the inclined pad 41, so the positioning seat can be used only once, and the purpose of avoiding cross infection of iatrogenic diseases is achieved.

With continued reference to fig. 9, according to a preferred embodiment, the shaft pin 34 has two large ends, a small middle part, a solid middle lower part, and a full elasticity due to the split at the middle upper part, and the diameter of the edge of the split is slightly larger than that of the split, and the whole body is dumbbell-like, and the vaginal dilator with the dumbbell-like shaft pin 34 has the advantages of easy installation, easy and convenient rotation during clinical use, flexibility and freedom, and improved work efficiency of doctors.

Example 3

Operation type and examination type self-destruction vaginal dilator

Referring first to fig. 11, the vaginal dilator of this embodiment comprises an upper wing 51 and a handle 55 integrally formed with the upper wing 51 and extending rearward along one end of the upper wing, a lower wing 52 and a grip 56 integrally formed with the lower wing 52 and extending rearward, wherein both sides of the rear ends of the upper wing 51 and the lower wing 52 are respectively connected by a shaft hole (not shown) and a shaft pin 54 to form a viewing port 69 between the upper and lower wings, so that the upper wing 51 and the lower wing 52 can be opened and closed by controlling the handle 55. The handle 55 is provided with a handle hole 59 and a positioning buckle 68, and the positioning buckle 68 is arranged at the tail end of the handle hole 59. The handle 56 is provided with a handle hole 60 and an inclined pad 61, and is arranged at the same side position of the handle 55, and the inclined pad 61 is arranged at the tail end of the handle hole 60.

Referring to fig. 11-14, the vaginal dilator of this embodiment includes a dilation positioning and destroying device, which is a hook-and-loop positioning and self-destroying device, and combines the dilation fixing and positioning functions of the fixed upper wing 51 and the lower wing 52 in the open state and the self-destroying function of the self-destroying device immediately after use. The expansion positioning and destroying device comprises an expansion positioning device which comprises a positioning seat 62 arranged in a handle hole 60 and an inclined pad 61 and an arc-shaped positioning rod 63 extending upwards, wherein the upper end of the rod is provided with a push handle 65, the back of the rod is provided with a positioning hook 64 which is meshed with a positioning buckle 68 at the tail end of a handle hole 59, and a doctor can adjust and fix the expansion positioning and destroying device according to the size of an observed field or an operation range. Referring to fig. 13-14, the expanding positioning and destroying device further comprises a self-destroying strip 66 on the positioning seat 62 and in front of the positioning rod 63. The positioning rod 63 and the self-destruction strip 66 penetrate through the handle hole 60 beside the outer side of the middle of the handle, the positioning rod 63 continuously penetrates through the handle hole 59, the positioning seat 62 is installed in the handle hole 60 and the inclined pad 61, at least one of the self-destruction strip 66 and the positioning rod 63 has elasticity, a doctor pushes the push handle 65 down simultaneously after using, the self-destruction strip 66 can be broken, the positioning seat 62 can be slipped, and the positioning rod 63 loses the function of fixing with the positioning buckle 68.

Typically, the examination vaginal dilator, with the handle and dilation positioning and disrupting means disposed on the right, as shown in FIGS. 11-13; the operation type vaginal dilator, the pressing handle and the dilation positioning and destroying device are arranged on the left side (only the position difference of the left side and the right side exists between the structure shown in figures 11-13, and the structure is shown in figures 33-34). For the examination type and the operation type vaginal dilator, the upper wing and the lower wing with different shapes are designed according to the use requirement, for example, the examination type upper wing and the lower wing are long and narrow, the shape is like a duck bill, the operation type upper wing and the lower wing are short and wide, and the shape is like a bird's beak. Because the expansion positioning destroying device is designed on one side of the handle (the pressing handle 55 and the holding handle 56), the design ensures that the visual field and the space of the whole expander are enlarged, the opening angle of the upper wing and the lower wing can reach more than 40 degrees during expansion, thereby being very beneficial to various examinations and operations of obstetrics and gynecology, meeting the requirements of clinical examination and clinical operations, being beneficial to fully exposing the vagina and the cervix, simultaneously being beneficial to protecting the vaginal orifice from over-expansion, being more beneficial to diagnosis and treatment and operation in clinical use, and being safer and more effective.

According to a preferred embodiment, referring to fig. 14, the self-destructive strip 66 is a short, small, overall slightly forward-inclined strip, which, like the positioning rod 63, is an upward extension of the positioning seat 62, and is located above the positioning seat 62, with the front side abutting against the front wall of the handle hole 60 and the rear side being the positioning rod 63.

On one hand, the positioning seat 62 is more firmly fixed in the handle hole 60 due to the front and back tension of the self-destruction strip 66 and the positioning rod 63; on the other hand, when the self-destruction strip 66 is applied with force by the push handle 65 and the positioning rod 63, the belly of the self-destruction strip is extruded by the front wall of the handle hole 60, and the impact when the positioning rod 63 slides off due to the lever action of the positioning seat 62 and the inclined pad 61 causes the root of the self-destruction strip 66 to be immediately broken, so that the breakage of the self-destruction strip 66 is almost carried out simultaneously with the sliding of the positioning seat 62 from the handle hole 60 and the inclined pad 61, the positioning rod 63 is dislocated due to the sliding of the positioning seat 62, the positioning rod 63 and the positioning buckle 68 cannot be meshed, expanded and positioned, which all happen and completed in a moment, and the root of the self-destruction strip 66 is broken, so that the self-destruction strip 66 is still connected with the positioning seat 62 and cannot fall; the positioning rod 63 is always connected with the positioning seat 62 after being out of position and cannot fall down independently, so that the whole dilator is still used when a doctor takes out the dilator, and the operation is time-saving and labor-saving, simple, practical, safe and effective.

According to a preferred embodiment, the head end of the self-destructive strip 66 extends forward to form a crown 67, such that the self-destructive strip 66 with the crown 67 resembles a transverse "7". According to a preferred embodiment, the handle 56 is optionally provided with a protrusion 70, the protrusion 70 is arranged in front of the handle hole 60, the crown 67 is engaged with the protrusion 70 in front of the handle hole 60 in the middle of the side edge of the handle 56, and the self-destruction strip 66 with the crown 67 is more easily broken and self-destroyed by being pressed by the front wall of the handle hole 60. And when the self-destruction strip 66 with the crown 67 is extruded and broken, the self-destruction strip still breaks at the root, so that the operation is time-saving and labor-saving, simple and convenient, safe and effective.

Although the surgical dilator and the examination dilator are arranged at different positions (specifically, the surgical dilator is arranged at the left side, and the examination dilator is arranged at the right side), the operation process of the surgical dilator and the examination dilator is basically the same as that of the examination dilator, and the operation process is described below with reference to fig. 11-13. With continued reference to FIG. 11, according to a preferred embodiment, the upper and lower wings 51, 52 are in a closed position prior to clinical use, and when clinical use is initiated, the physician places the vaginal dilator into the vagina with the upper and lower wings 51, 52 still in a closed position, at which time the self-destructive strip 66 is seen intact. With continued reference to fig. 11-12, in clinical use, the physician presses down on the handle 55, the upper and lower wings 51, 52 are expanded to the desired field of view, the positioning fastener 68 is engaged and secured in the positioning hook 64, and the physician begins examination, diagnosis or operation while the self-destructive strip 66 is intact. Referring to fig. 13, according to a preferred embodiment, when the clinical examination or operation is completed, the doctor presses down the push handle 65, and the positioning rod advances to press the self-destruction strip 66 against the front wall of the handle hole 60 due to the pushing force and the elastic effect of the positioning rod, and the root of the self-destruction strip is immediately broken and cannot be restored.

In accordance with a preferred embodiment, and with continued reference to FIG. 11, the handle 56 has a double-layered handle aperture 60 in the side of the middle portion, the bottom layer being larger than the top layer, and a beveled pad 61 at the rear end of the bottom of the aperture, all of which are designed with particular emphasis on the design, so that the bottom layer has more space than the top layer. According to a preferred embodiment, the bottom layer of the handle hole 60 is designed to be in a treasured gourd shape, and the locating seat 62 in the treasured gourd shape corresponding to the shape of the bottom layer is firmly installed in the handle hole 60, so that the safety and the reliability of clinical use are guaranteed. On the other hand, the overall thickness of the positioning seat 62 can be reduced by the upper layer and the lower layer, and the positioning seat 62 is thick in the front and thin in the back, so that the positioning seat 62 is more easily slipped from the handle hole 60 and the inclined pad 61 under the action of pushing forward of the pushing handle, the positioning rod 63 is dislocated, the positioning rod 63 is separated from the positioning buckle 68 and cannot be tightly engaged with the positioning buckle, the expansion and positioning functions are lost, the three layers are self-destroyed and cannot be restored to realize one-time use, and the purpose of avoiding cross infection of iatrogenic diseases is achieved.

With continued reference to fig. 11-13, according to a preferred embodiment, the shaft pin 54 has two large ends, a small middle part, a solid middle lower part, and a split piece at the middle upper part to be elastic, and the edge diameter of the split piece is slightly larger than the split piece diameter, and the whole body is dumbbell-shaped.

Example 4

Operation type and examination type instant-destroyed vaginal dilator

Referring first to fig. 15 and 17, the vaginal dilator of this embodiment comprises an upper wing 71 and a handle 75 integrally formed with the upper wing 71 and extending rearward along one end of the upper wing, a lower wing 72 and a grip 76 integrally formed with the lower wing 72 and extending rearward, both sides of the rear ends of the upper wing 71 and the lower wing 72 are respectively connected to a shaft pin 74 through shaft holes (not shown) and form a viewing port 89 between the upper and lower wings, so that the upper and lower wings can be opened and closed by controlling the handle 75. The pressing handle 75 is provided with a pressing handle hole 79. The handle 76 is provided with a handle hole 80 and a tilting pad 81, the tilting pad 81 being at the end of the handle hole 80.

Referring to fig. 15-16 and 18, the vaginal dilator of this embodiment includes a dilation positioning and destroying device, which is a spiral positioning and destroying device, and combines the dilation positioning function for fixing the opened state of the upper wing 71 and the lower wing 72 and the destroying function that can be destroyed after use. The expanding, positioning and destroying device comprises an expanding and positioning device which comprises a positioning seat 82 arranged in a handle hole 80 and an inclined pad 81 and an upward extending threaded screw 83, wherein the threaded screw 83 is screwed with a nut 84, and a doctor can adjust and fix the expanding and positioning device according to the size of the inspected field or the operation range. Referring to fig. 17, the expanding, positioning and destroying device further includes a self-destroying strip 86, a screw front dome 88 for placing the self-destroying strip 86 is arranged on the positioning seat 82 in front of the screw 83, a push handle 85 is arranged on the top of the screw, the screw 83 and the self-destroying strip 86 are inserted into the handle hole 80, the screw 83 is further inserted into the handle hole 79, the positioning seat 82 is arranged in the handle hole 80 and the inclined pad 81, at least one of the self-destroying strip 86 and the screw 83 should have elasticity, after the dilator is taken out after use, the doctor pushes the push handle 85 or the nut 84, the self-destroying strip 86 can be broken, the positioning seat 82 can be slipped, the screw 83 loses the positioning function of the positioning seat 82 and loses the function of being tightly matched with the nut 84 and can not be fixed.

Typically, the examination vaginal dilator, with the handle and dilation positioning and disrupting means disposed on the right, as shown in FIGS. 15-17; the surgical vaginal dilator, the handle and the dilation positioning and destroying device are arranged on the left side (only the left and right positions are different from the structure shown in fig. 15-17, as shown in fig. 35). For the examination type and the operation type vaginal dilator, the upper wing and the lower wing with different shapes are designed according to the use requirement, for example, the examination type upper wing and the lower wing are long and narrow, the shape is like a duck bill, the operation type upper wing and the lower wing are short and wide, and the shape is like a bird's beak. Because the expansion fixing self-destruction device is designed on one side of the handle (the pressing handle 75 and the holding handle 76), the design ensures that the visual field and the space of the whole expander are enlarged, the expanding angle of the upper wing and the lower wing can reach more than 40 degrees during expansion, thereby being very beneficial to various examinations and operations of obstetrics and gynecology department, fully exposing the vagina and the cervix, simultaneously being beneficial to protecting the vaginal orifice from over-expansion, being more beneficial to diagnosis and treatment and operation in clinical use, and being safer and more effective.

According to a preferred embodiment, referring to fig. 18, the self-destruct strip 86 is a short, small, generally slightly forward-inclined strip, which, like the screw 83, is an upward extension of the positioning socket 82, above the positioning socket 82, with the front abutting the front wall of the handle bore 80 and the rear being a screw forward dome 88. When the self-destruction strip is broken, the self-destruction strip and the nut can not be twisted, expanded and positioned inevitably due to the slippage of the positioning seat and the dislocation of the screw rod, all the self-destruction strip and the nut are generated and completed in a moment, so the operation is very time-saving and labor-saving, simple, practical, safe and effective.

On one hand, the positioning seat 82 is more firmly fixed in the handle hole 80 due to the front and back tension of the self-destruction strip 86 and the screw 83; on the other hand, when the self-destruction strip 86 is applied with force by the push handle 85 and the screw rod 83, the belly of the self-destruction strip 86 is extruded by the front wall of the handle hole 80, and the impact when the screw rod 83 slides off the positioning seat 82 under the lever action of the positioning seat 82 and the inclined pad 81 causes the root of the self-destruction strip 86 to be immediately broken, so that the breakage of the self-destruction strip 86 is almost performed simultaneously with the sliding of the positioning seat 82 from the handle hole 80 and the inclined pad 81, and the screw rod 83 is dislocated due to the sliding of the positioning seat 82 and cannot be closely matched and screwed with the screw cap 84 for expansion and positioning, which are all generated and completed in a moment, and the root of the self-destruction strip 86 is broken, so that the self-destruction strip 86 is still connected with the positioning seat 82 and; the screw 83 is always connected with the positioning seat 82 after being out of position and cannot fall down independently, so that the operation is time-saving and labor-saving, simple and practical, safe and effective.

According to a preferred embodiment, the leading end of the self-destructing strip 86 extends forward to form a crown 87, such that the self-destructing strip 86 with the crown 87 resembles a transverse "7". According to a preferred embodiment, the handle 76 is further optionally provided with a convex protrusion 90, the convex protrusion 90 is arranged in front of the handle hole 80, the crown 87 is buckled with the convex protrusion 90 in front of the handle hole 80 in the middle of the side edge of the handle 76, the self-destruction strip 86 with the crown 87 is more easily broken and self-destroyed when being pressed by the front wall of the handle hole 80, and when the self-destruction strip 86 with the crown 87 is broken by pressing, the self-destruction strip is still broken at the root, so that the operation is also time-saving, labor-saving, simple, convenient, safe and effective.

Although the surgical dilator and the examination dilator are arranged at different positions (specifically, the surgical dilator is arranged at the left side, and the examination dilator is arranged at the right side), the operation process of the surgical dilator and the examination dilator is basically the same as that of the examination dilator, and the operation process is described below with reference to fig. 15-17. With continued reference to FIG. 15, according to a preferred embodiment, the upper and lower wings 71, 72 are in a closed position prior to clinical use, and when clinical use is initiated, the physician places the vaginal speculum into the vagina, with the upper and lower wings 71, 72 still in the closed position, with the self-destructive strip 86 visible intact. With continued reference to fig. 15-16, in clinical use, the physician presses down on the handle 75, the upper wing 71 and the lower wing 72 are expanded to the desired field of view, the nut 84 is screwed into the screw 83 and secured, and the physician begins an examination, diagnosis or operation while the self-destructive strip 86 is still intact. Referring to fig. 17, according to a preferred embodiment, when the clinical examination or operation is completed, the doctor takes out the dilator, withdraws the nut 84 backward, closes the upper and lower wings, and presses the push handle 85 or the nut 84, and the self-destruction strip 86 is pressed by the front wall of the handle hole 80 due to the pushing force and the elasticity of the screw 83, and the root thereof is immediately broken and cannot be restored.

According to a preferred embodiment, and with continued reference to FIG. 15, the handle 76 has a double-layered handle aperture 80 in the side of the middle, the bottom layer being larger than the top layer, and a tapered pad 81 at the rear end of the bottom of the aperture, with details being emphasized, on the one hand, to allow more space for the bottom layer than the top layer. According to an embodiment of the invention, the bottom layer of the handle hole 80 is designed to be in a treasured gourd shape, and the locating seat 82 in the treasured gourd shape corresponding to the shape of the bottom layer is firmly installed in the handle hole 80, so that the safety and the reliability of clinical use are guaranteed. On the other hand, the overall thickness of the positioning seat 82 can be reduced by the upper layer and the lower layer, and the positioning seat 82 is thick in the front and thin in the back, so that the positioning seat 82 can be more easily slipped from the handle hole 80 and the inclined pad 81 under the action of forward thrust of the push handle 85, the screw 83 is lost and cannot be tightly screwed with the screw cap 84, the expansion and positioning functions are lost, the three layers are self-destroyed and cannot be restored at the same time, the use is realized only once, and the purpose of avoiding cross infection of iatrogenic diseases is achieved.

With continued reference to fig. 15-17, according to a preferred embodiment, the shaft pin 74 has large ends, small middle part, solid middle and lower parts, and elastic middle and upper parts, and the diameter of the edge of the split piece is slightly larger than that of the split piece, and the whole body is dumbbell-shaped.

Example 5

Self-destruction disposable vaginal dilator

Referring to fig. 19 and 22, the self-destructive disposable vaginal dilator of the present embodiment has a structure substantially the same as the vaginal speculum of embodiment 1, and also includes an upper dilator plate and a lower dilator plate, the upper dilator plate includes an upper wing 1 and a handle 5 which is integrated with the upper wing 1, extends from the rear end of the upper wing in the left and right circular arc shapes, and continues to extend downward after being integrated at the midpoint; the lower expansion piece comprises a lower wing 2 and a grip 6 integral with the lower wing 2 and extending downward in the central position. The two sides of the rear ends of the upper wing 1 and the lower wing 2 are respectively connected with the shaft pin 4 through the shaft hole 3 and form a visual field opening 19 between the upper wing and the lower wing, so that the upper wing and the lower wing can be opened and closed through the control press handle 5. The press handle 5 is provided with a press handle hole 9 and a positioning buckle 18, and the positioning buckle 18 is arranged at the tail end of the press handle hole 9. The handle 6 is provided with a handle hole 10 and an inclined pad 11, and the inclined pad 11 is arranged at the tail end of the handle hole 10.

Referring to fig. 20-21 and 5, the vaginal dilator comprises a dilation positioning destroying device, which is a hook-and-loop positioning self-destroying device, and skillfully combines the dilation positioning function for fixing the open state of the upper wing 1 and the lower wing 2 and the self-destroying function which can be self-destroyed immediately after use. The expansion positioning destroying device comprises an expansion positioning device which comprises a positioning seat 12 arranged in a handle hole 10 and an inclined pad 11 and an arc positioning rod 13 extending upwards, wherein the upper end of the rod is provided with a push handle 15, the back of the rod is provided with a positioning hook 14 which can be meshed with a positioning buckle 18 at the tail end of a handle hole 9, and a doctor can quickly adjust and fix the expansion positioning destroying device according to the size of an observed field or an operation range. The expanding positioning destroying device further comprises a self-destroying strip 16 which is arranged on the positioning seat 12 and is positioned in front of the positioning rod 13. The locating rod 13 and the self-destruction strip 16 are penetrated through the handle hole 10, the locating seat 12 is arranged in the handle hole 10 and the cushion 11, and at least one of the self-destruction strip 16 and the locating rod 13 has elasticity.

The self-destruction disposable vaginal dilator of the embodiment has a structure different from that of the vaginal speculum of the embodiment 1 in that the vaginal dilator of the embodiment further comprises a self-destruction expansion device which comprises a sheet 7 arranged on the press handle 5 and a poking strip 8 arranged on the grab handle 6, has a self-destruction expansion function which can be destroyed during expansion, and can automatically puncture the sheet to achieve the self-destruction purpose in the operation process.

According to a preferred embodiment, with continued reference to figures 19-21 and 5, the self-destructive strip 16 is a short, small, overall slightly forward-inclined strip, located above the positioning socket 12, which is also an extension of the positioning socket 12, with the front face abutting against the front wall of the grip hole 10 and the rear face being the positioning stem 13. On one hand, the positioning seat 12 is more firmly fixed in the handle hole 10 due to the front and back tension of the self-destruction strip 16 and the positioning rod 13; on the other hand, when the self-destruction strip 16 is applied with force by the push handle 15 and the positioning rod 13, the belly of the self-destruction strip is extruded by the front wall of the handle hole 10, and the impact when the positioning rod 13 slides off due to the lever action of the positioning seat 12 and the inclined pad 11 causes the root of the self-destruction strip 16 to be immediately broken, so that the breakage of the self-destruction strip 16 is almost carried out simultaneously with the sliding off of the positioning seat 12 from the handle hole 10 and the inclined pad 11, the positioning rod 13 is dislocated due to the sliding off of the positioning seat 12, the positioning rod 13 and the positioning buckle 18 cannot be meshed, expanded and positioned, all of which are generated and completed in a moment, and the root of the self-destruction strip 16 is broken, so that the self-destruction strip 16 is still connected with the positioning seat; the positioning rod 13 is always connected with the positioning seat 12 after being out of position and cannot fall down independently, so that the whole dilator is still used when a doctor takes out the positioning rod, and the operation is time-saving, labor-saving, simple, practical, safe and effective.

According to a preferred embodiment, the head end of the self-destructive strip 16 extends forward to form a crown 17, so that the self-destructive strip 16 with the crown 17 looks like a "7" in the transverse direction. According to a preferred embodiment, the handle 6 is optionally provided with a convex protrusion 20, the convex protrusion 20 is arranged in front of the handle hole 10, the crown 17 is buckled with the convex protrusion 20 in front of the handle hole 10 in the middle of the handle 6, and the self-destruction strip 16 with the crown 17 is more easily broken and self-destroyed when being pressed by the front wall of the handle hole 10. And when the self-destruction strip 16 with the crown 17 is extruded and broken, the self-destruction strip still breaks at the root, so that the operation is time-saving and labor-saving, simple and convenient, safe and effective.

With continued reference to FIG. 19, according to a preferred embodiment, prior to clinical use, the upper and lower wings 1, 2 are in a closed position, and at the beginning of clinical use, the physician places the vaginal speculum into the vagina, with the upper and lower wings 1, 2 still in a closed position, where the self-destructive strip 16 is seen intact, and the sheet 7 of the expandable self-destructive device on the handle 5 is also intact, both in their normal position.

With continued reference to fig. 20, when in clinical use, the doctor presses down the press handle 5, the upper wing 1 and the lower wing 2 are expanded to the required visual field, the positioning hook 14 enters the positioning buckle 18 and is engaged with the positioning buckle to fix the upper wing 1 and the lower wing 2, the doctor starts to inspect, diagnose or perform an operation, and the self-destruction strip 16 is still intact; the poking strip 8 on the grab handle 6 can simultaneously puncture the sheet 7 on the press handle 5 corresponding to the position of the poking strip 8, and the self-destruction device is expanded to realize automatic destruction and can not be restored.

With continued reference to FIG. 21, in accordance with a preferred embodiment, when the clinical examination or surgery is completed, the physician pushes the push handle 15 forward slightly, and due to the pushing force and the elastic action of the positioning rod, the positioning rod advances to press the self-destruction strip 16 against the front wall of the handle hole 10, and the root thereof is immediately broken and cannot be restored.

According to a preferred embodiment, with continued reference to fig. 22, the grip 6 is provided with a double grip hole 10 in the middle, the bottom layer being larger than the upper layer, and with a cushion 11 at the rear end of the bottom of the hole, the design being emphasized in detail, on the one hand, allowing more space for the bottom layer than the upper layer.

According to a preferred embodiment, the bottom layer of the handle hole 10 is designed to be in a treasured gourd shape, the locating seat 12 in the treasured gourd shape corresponding to the bottom layer shape is firmly installed in the handle hole 10, so that the clinical use safety and reliability are guaranteed, on the other hand, the overall thickness of the locating seat 12 can be reduced due to the design of the upper layer and the lower layer, and the locating seat 12 is designed to be thick in the front and thin in the rear so that the locating seat 12 can be more easily slipped from the handle hole 10 and the cushion 11 to be self-destructed under the action of forward pushing force of the push handle through the transmission of the locating rod 13 and the lever action of the cushion 11, so that the locating seat 12 cannot be used for the second time, and the purpose of avoiding.

With reference to fig. 22, according to a preferred embodiment, the shaft pin 4 has two large ends, a small middle part, a solid middle lower part, and a flexible middle upper part, and the diameter of the edge of the split piece is slightly larger than that of the split piece, and the whole body is dumbbell-shaped.

Example 6

Disposable vaginal speculum

Referring to fig. 23 and 26, the instant disposable vaginal dilator of the present embodiment has a structure substantially the same as the vaginal speculum of embodiment 2, i.e., the instant disposable vaginal dilator also includes an upper dilator sheet and a lower dilator sheet, the upper dilator sheet includes an upper wing 31 and a pressing handle 35 which is integrated with the upper wing 31, extends from the rear end of the upper wing in the left and right circular arc shapes, and continues to extend downward after being integrated at the center; the lower expansion flap includes a lower wing 32 and a handle 36 integral with the lower wing 32 and extending downwardly in a central position. The two sides of the rear ends of the upper wing 31 and the lower wing 32 are respectively connected with the shaft pin 34 through the shaft hole 33 and form a visual field opening 49 between the upper wing and the lower wing, so that the upper wing and the lower wing can be opened and closed through the control press handle 35. As shown in fig. 26, the press handle 35 is provided with a press handle hole 39. The grip 36 has a grip hole 40 and a tapered pad 41, the tapered pad 41 being located at the end of the grip hole 40.

Referring to fig. 23-26 and 10, the vaginal dilator of this embodiment includes a dilation positioning destroying device, which is a spiral positioning instant destroying device, and skillfully combines the dilation positioning function for fixing the opened state of the upper wing 31 and the lower wing 32 and the destroying function that can be destroyed after use. The expanding, positioning and destroying device comprises an expanding and positioning device which comprises a positioning seat 42 arranged in a handle hole 40 and an inclined pad 41 and an upward extending threaded screw rod 43, wherein the threaded screw rod 43 is matched with a nut 44, and a doctor can adjust and fix the expanding and positioning device according to the size of the field to be inspected or the operation range. The expansion positioning destroying device further comprises a self-destroying strip 46, a screw rod front dome 48 for arranging the self-destroying strip 46 is arranged on the positioning seat 42 and is positioned in front of the screw rod 43, the root part of the screw rod 43 is provided with a screw rod front dome 48, the top part of the screw rod 43 is provided with a push handle 45, the screw rod 43 and the self-destroying strip 46 are penetrated through a handle hole 40, the screw rod 43 is continuously penetrated through a handle hole, the positioning seat 42 is arranged in the handle hole 40 and the inclined pad 41, and at least one of the self-destroying strip 46 and the screw rod 43 has elasticity.

The structure of the vaginal dilator of the present embodiment is different from that of the vaginal dilator of embodiment 2 in that the vaginal dilator of the present embodiment further includes a dilation self-destruction device, which includes a thin sheet 37 arranged on the press handle 35 and a poking strip 38 arranged on the grip 36, and has a dilation self-destruction function that can be destroyed when dilating, and in the operation process, the poking strip can automatically puncture the thin sheet to achieve the self-destruction purpose.

In accordance with a preferred embodiment, with continued reference to fig. 25 and 10, the self-destruct strip 46 is a short, small, generally slightly forward-leaning strip that is positioned above the positioning socket 42, which is also an extension of the positioning socket 42, with the front abutting the front wall of the handle bore 40 and the rear being the screw forward dome 48.

On one hand, the positioning seat 42 is more firmly fixed in the handle hole 40 due to the front and back tension of the self-destruction strip 46 and the screw 43; on the other hand, when the self-destruction strip 46 is forced by the push handle 45 and the screw 43, the belly of the self-destruction strip is extruded by the front wall of the handle hole 40, and the impact when the screw 43 slides off the positioning seat 42 under the lever action of the positioning seat 42 and the inclined pad 41 causes the root of the self-destruction strip 46 to be immediately broken, so that the self-destruction strip 46 is broken almost simultaneously with the sliding off of the positioning seat 42 from the handle hole 40 and the inclined pad 41, and the screw 43 is dislocated due to the sliding off of the positioning seat 42, and the screw 43 and the nut 44 cannot be twisted, expanded and positioned necessarily, which all happen and complete at one moment. And the self-destruction strip 46 is broken at the root part, so that the self-destruction strip 46 is still connected with the positioning seat 42 and cannot fall down independently even if the self-destruction strip is broken; the screw 43 is always connected with the positioning seat 42 after being out of position and cannot fall down independently, so that the operation is time-saving and labor-saving, simple and practical, safe and effective.

According to a preferred embodiment, the leading end of the self-destructing strip 46 extends forward to form a crown 47, such that the self-destructing strip 46 with the crown 47 looks like a "7" in the transverse direction. According to a preferred embodiment, the handle 36 is optionally further provided with a protrusion 50, the protrusion 50 is disposed in front of the handle hole 40, the crown 47 is engaged with the protrusion 50 disposed in front of the handle hole 40 in the middle of the handle 36, and the self-destruction strip 46 with the crown 47 is more easily broken and self-destroyed by being pressed by the front wall of the handle hole 40. And when the self-destruction strip 46 with the crown 47 is extruded and broken, the self-destruction strip is still broken at the root, so that the operation is time-saving and labor-saving, simple and convenient, safe and effective.

With continued reference to FIG. 23, according to a preferred embodiment, the upper and lower wings 31, 32 are in a closed position prior to clinical use, and when clinical use is initiated, the physician places the vaginal speculum in the vagina with the upper and lower wings 31, 32 still in the closed position, with all visible self-destructive strip 46 intact, and with all of the tabs 37 of the expandable self-destructive device on the handle 35 intact, in their normal position.

With continued reference to fig. 24, when the doctor presses the handle 35 in clinical use, the upper wing 31 and the lower wing 32 are expanded to the required visual field, the screw cap 44 is turned into the screw 43 for fixation, and the doctor starts to examine, diagnose or perform an operation, and the self-destruction strip 46 is still intact. The seal 38 on the handle 36 will simultaneously puncture the thin sheet 37 on the handle 35 corresponding to the position of the seal 38, and the self-destruction device will expand to achieve self-destruction and non-recovery.

With continued reference to FIG. 25, and in accordance with a preferred embodiment, upon completion of the clinical examination or procedure, the physician removes the expander, withdraws the nut back to the closed upper and lower wing positions and depresses the push handle 45 or nut 44, with the thrust and resiliency of the screw 43, the screw 43 and forward dome 48 causing the self-destruct strip 46 to be pressed against the forward wall of the handle aperture 40, with the root portion of the strip immediately broken and irreparable.

According to a preferred embodiment, and with continued reference to fig. 26, the handle 36 has a double-layered handle hole 40 in the middle, the bottom layer being larger than the top layer, and a tapered pad 41 at the rear end of the bottom of the hole, which is designed with particular emphasis on the space available on the bottom layer being larger than the top layer.

According to a preferred embodiment, the bottom layer of the handle hole 40 is designed to be in a treasured gourd shape, the locating seat 42 in the treasured gourd shape corresponding to the shape of the bottom layer is firmly installed in the handle hole 40, so that the clinical use safety and reliability are guaranteed, on the other hand, the overall thickness of the locating seat 42 can be reduced due to the design of the upper layer and the lower layer, and the locating seat 42 is thick in the front and thin in the rear so that the locating seat 42 can be more easily slipped from the handle hole 40 and the cushion 41 to be self-destroyed under the action of the forward pushing force of the push handle through the transmission of the screw 43 and the lever action of the cushion 41, so that the locating seat 42 can not be used for the second time, and the purpose of avoiding the.

With continued reference to fig. 26, according to a preferred embodiment, the shaft pin 34 has two large ends, a small middle part, a solid middle lower part, and a flexible middle upper part, and the diameter of the edge of the split piece is slightly larger than that of the split piece, and the whole body is dumbbell-shaped.

Example 7

Operation type and examination type self-destruction vaginal dilator

Referring first to fig. 27 to 29, the structure of the vaginal dilator of this embodiment is substantially the same as that of the vaginal dilator of embodiment 3, and the lateral hook-and-loop self-destruction disposable vaginal dilator also includes an upper wing 51 and a handle 55 integrally formed with the upper wing 51 and extending rearward, a lower wing 52 and a grip 56 integrally formed with the lower wing 52 and extending rearward along one end of the upper wing, and both sides of the rear ends of the upper wing 51 and the lower wing 52 are respectively connected by a shaft hole (not shown) and a shaft pin 54 to form a view port between the upper wing and the lower wing, so that the upper wing 51 and the lower wing 52 can be opened and closed by controlling the handle 55. The handle 55 is provided with a handle hole 59 and a positioning buckle 68, and the positioning buckle 68 is arranged at the tail end of the handle hole 59. The handle 56 is provided with a handle hole 60 and an inclined pad 61, and is arranged at the same side position of the handle 55, and the inclined pad 61 is arranged at the tail end of the handle hole 60.

Referring to fig. 27-29 and 14, the vaginal dilator of this embodiment includes a dilation positioning and destroying device, which is a hook-and-loop positioning and self-destroying device, and combines the dilation positioning function for fixing the opened state of the upper wing 51 and the lower wing 52 and the self-destroying function of self-destroying after use. The expansion positioning and destroying device comprises a positioning seat 62 arranged in a handle hole 60 and an inclined pad 61, and an arc positioning rod 63 extending upwards, wherein the upper end of the rod is provided with a push handle 65, the back of the rod is provided with a positioning hook 64 which is meshed with a positioning buckle 68 at the tail end of a handle hole 59, and a doctor can expand, adjust and fix according to the size of the examined field or the operation range.

The structure of the vaginal dilator of the present embodiment is different from that of the vaginal dilator of embodiment 3 in that the vaginal dilator of the present embodiment further includes a dilation self-destruction device, which includes a thin sheet 57 disposed on the handle 55 and a poking strip 58 disposed on the grip 56, and has a dilation self-destruction function that can be destroyed when dilating, and the poking strip 58 on the grip 56 punctures the thin sheet 57 on the handle 55 immediately to destroy itself during dilation.

Referring to fig. 29 and 14, the expanding positioning and destroying device further comprises a self-destroying strip 66 on the positioning seat 62 and in front of the positioning rod 63. The self-destruction strip 66 is a strip which is short, small and slightly inclined forwards as a whole, is also an upward extending body of the positioning seat 62 like the positioning rod 63, is positioned above the positioning seat 62, is close to the front wall of the handle hole 60 in front, is provided with the positioning rod 63 at the back, is provided with a positioning hook 64 which can be meshed with a positioning buckle 68 at the tail end of the handle hole 59 at the back, penetrates the handle hole 60 beside the middle part of the handle on the positioning rod 63 and the self-destruction strip 66, continuously penetrates the handle hole 59 on the positioning rod 63, and installs the positioning seat 62 in the handle hole 60 and the inclined pad 61, at least one of the self-destruction strip 66 and the positioning rod 63 has elasticity, and the positioning seat 62 is more firmly fixed in the bottom layer of the handle hole 60 due to the front and back tension of the self-destruction strip 66.

When the doctor pushes down the push handle 65 after using, the self-destruction strip 66 is applied with force by the push handle 65 and the positioning rod 63, the root of the abdomen is instantly fractured by the extrusion of the front wall of the handle hole 60, and the root of the self-destruction strip 66 is instantly fractured by the impact force when the positioning seat 62 slides off caused by the lever action of the positioning rod 63 through the positioning seat 62 and the inclined pad 61, the fracture of the self-destruction strip 66 is almost simultaneously performed with the sliding of the positioning seat 62 from the handle hole 60 and the inclined pad 61, due to the slipping of the positioning seat 62 and the dislocation of the positioning rod 63, the positioning hook 64 can not be engaged with the positioning buckle 68 to expand and be positioned any more, which all happen and finished in a moment, moreover, the first broken part of the self-destruction strip 66 is at the root part and is shaped like a 'fracture', so that even if the self-destruction strip 66 is broken, the self-destruction strip still is connected with the positioning seat 62 and cannot fall down independently; the positioning rod 63 is still connected with the positioning seat 62 after being out of position and cannot fall down independently, so that the dilator is still a whole dilator when a doctor takes out the dilator just like a disposable vaginal dilator without a dilation positioning and shape destroying device, and the dilator is simple and labor-saving in operation, convenient, practical, safe and effective.

Referring to fig. 27, 29 and 14, according to a preferred embodiment, the head end of the self-destructive strip 66 extends forward to form a crown 67, so that the self-destructive strip 66 with the crown 67 is shaped like a "7" in the transverse direction. According to a preferred embodiment, the handle 56 is optionally provided with a protrusion 70, the protrusion 70 is arranged in front of the handle hole 60, the crown 67 is just engaged with the protrusion 70 in front of the handle hole 60 at the middle of the side edge of the handle 56, and the self-destruction strip 66 with the crown 67 is more easily broken and self-destroyed by being pressed by the front wall of the handle hole 60. And when the self-destruction strip 66 with the crown 67 is extruded and broken, the fracture is still at the root, so the operation is time-saving and labor-saving, simple and convenient, safe and effective.

Generally, the examination type vaginal dilator is provided with a handle, a dilation self-destruction device and a dilation positioning destruction device on the right side, as shown in fig. 27-29; the operation type vaginal dilator is provided with a pressing handle, a dilation self-destruction device and a dilation positioning destruction device on the left side (not shown in the figure, only has left and right position difference compared with the structure shown in figures 27-29, and is similar to the structure shown in figures 33-34, except that the structure comprises a thin sheet and a poking strip). For the examination type and the operation type vaginal dilator, the upper wing and the lower wing with different shapes are designed according to the use requirement, for example, the examination type upper wing and the lower wing are long and narrow, the shape is like a duck bill, the operation type upper wing and the lower wing are short and wide, and the shape is like a bird's beak. Because the expansion positioning destroying device is designed on one side of the handle (the pressing handle 55 and the holding handle 56), as mentioned above, the operation type expansion positioning destroying device is designed on the left side of the handle, and the examination type is designed on the right side of the handle, the design enlarges the visual field and space of the whole dilator, and is more beneficial to the operation of doctors, the opening angle of the upper wing and the lower wing can reach more than 40 degrees during the expansion, thereby being very beneficial to various examinations and operations of obstetrics and gynecology department, fully exposing the vagina and the cervix, simultaneously being beneficial to protecting the vaginal orifice from over-expansion, being more beneficial to diagnosis and operation in clinical use, and being safer and more effective.

Although the surgical dilator and the examination dilator are arranged at different positions (specifically, the surgical dilator is arranged at the left side, and the examination dilator is arranged at the right side), the operation of the surgical dilator and the operation of the examination dilator are basically the same as the operation of the examination dilator, and the operation process is described below with reference to fig. 14, 27-29. With continued reference to fig. 27 and 14, according to a preferred embodiment, the upper and lower wings 51, 52 are in a closed position prior to clinical use, and when the physician places the vaginal dilator into the vagina at the beginning of clinical use, with the upper and lower wings 51, 52 still in a closed position, it can be seen that the self-destructive strip 66 is intact, and the tab 57 of the dilating self-destructive device on the handle 55 is also intact, and they are in their normal position. With continued reference to fig. 27-28 and 14, in clinical use, the physician presses down on the handle 55, the upper and lower wings 51, 52 are expanded to the desired field of view, the positioning fastener 68 is engaged and secured in the positioning hook 64, and the physician begins examination, diagnosis or operation with the self-destructive strip 66 intact. The seal 57 on the handle 55 is torn immediately by the seal 58 on the handle 56 during expansion and self-destructs. Referring to fig. 29, according to a preferred embodiment, when the clinical examination or operation is completed, the doctor presses down the push handle 65, and the positioning rod advances forward to press the self-destruction strip 66 against the front wall of the handle hole 60, which protrudes slightly backward from the middle of the upper layer thereof, and the root portion thereof is immediately broken and cannot be restored.

According to a preferred embodiment, a double-layer handle hole 60 is arranged at the position corresponding to the handle hole beside the outer side of the middle part of the handle 56, the bottom layer is larger than the upper layer, an inclined pad 61 is arranged at the rear end of the bottom of the hole, and the design emphasizes the connection details, so that on one hand, the bottom layer has larger space than the upper layer, according to one embodiment of the invention, the bottom layer of the handle hole 60 is designed into a jewel shape, and a positioning seat 62 of the jewel shape matched with the shape of the bottom layer can be firmly installed in the bottom layer of the handle hole 60, thereby being beautiful and practical, and ensuring safe and reliable clinical use.

On the other hand, the overall thickness of the positioning seat 62 can be reduced by the upper layer and the lower layer, and the positioning seat 62 is thick in the front and thin in the back, so that the positioning seat 62 is more easily slipped from the handle hole 60 and the inclined pad 61 under the action of pushing forward of the pushing handle, the positioning rod 63 is dislocated, the positioning rod 63 is separated from the positioning buckle 68 and cannot be tightly engaged with the positioning buckle, the expansion and positioning functions are lost, the three layers are self-destroyed and cannot be restored to realize one-time use, and the purpose of avoiding cross infection of iatrogenic diseases is achieved.

With continued reference to fig. 27-29, according to a preferred embodiment, the shaft pin 54 has two large ends, a small middle part, a solid middle lower part, and a split piece at the middle upper part to be elastic, and the diameter of the edge of the split piece is slightly larger than that of the split piece, and the whole body is dumbbell-shaped.

Example 8

Operation type and examination type instant-destroyed vaginal dilator

Referring first to fig. 30-32, the structure of the vaginal dilator of this embodiment is substantially the same as that of the vaginal dilator of embodiment 4, and the lateral spiral disposable vaginal dilator also comprises an upper wing 71 and a pressing handle 75 which is integrated with the upper wing 71 and extends backwards along one lateral end of the upper wing, a lower wing 72 and a holding handle 76 which is integrated with the lower wing 72 and extends backwards, and both sides of the rear end of the upper wing 71 and the lower wing 72 are respectively connected by a pin 74 and form a visual port 89 between the upper wing and the lower wing, so that the upper wing 71 and the lower wing 72 can be opened and closed by controlling the pressing handle 75. The pressing handle 75 is provided with a pressing handle hole 79. The handle 76 is provided with a handle hole 80 and a tilting pad 81, the tilting pad 81 being at the end of the handle hole 80.

The vaginal dilator of the embodiment comprises a dilation positioning destroying device which is a spiral positioning destroying device and completely and skillfully combines the dilation positioning function for fixing the opening state of the upper wing 71 and the lower wing 72 and the destroying function which can be destroyed after use. The expanding, positioning and destroying device comprises an expanding and positioning device which comprises a positioning seat 82 arranged in a handle hole 80 and an inclined pad 81, wherein the positioning seat 82 extends upwards to form a screw 83, the screw 83 with threads is matched with a nut 84, and a doctor can expand, adjust and fix according to the size of an observed field or an operation range. Referring to fig. 32, the expanding positioning destroying device further comprises a self-destroying strip 86, a screw front dome 88 for placing the self-destroying strip 86 is arranged at the lower part of the screw on the positioning seat 82 and in front of the screw 83, and a push handle 85 is arranged at the top of the screw.

The structure of the vaginal dilator of the present embodiment is different from that of the vaginal dilator of embodiment 4 in that the vaginal dilator of the present embodiment further includes a dilation self-destruction device, which includes a thin sheet 77 disposed on the handle 75 and a stamp strip 78 disposed on the grip 76, and has a dilation self-destruction function that can be destroyed when dilating. While the dilator is expanded, the poking strip 78 arranged on the holding handle 76 will inevitably puncture the sheet 77 on the pressing handle 75, the self-destruction device is self-destroyed, and the dilator is known to be used clinically and not to be used for a second time at a glance.

Referring to fig. 32 and 18, the self-destructive strip 86 is a relatively short, generally slightly forward-inclined strip, and is also an upward extension of the positioning socket 82, as is the screw 83, above the positioning socket 82, with the front abutting the front wall of the handle bore 80 and the rear being a screw front dome 88; the screw rod 83 and the self-destruction strip 86 penetrate through the handle hole 80, the screw rod 83 continuously penetrates through the handle hole 79, the positioning seat 82 is installed in the handle hole 80 and the inclined pad 81, at least one of the self-destruction strip 86 and the screw rod 83 has elasticity, and the positioning seat 82 is more firmly fixed in the bottom layer of the handle hole 80 and the inclined pad 81 due to the front and back tension of the self-destruction strip 86 and the screw rod 83. When the doctor takes out the dilator after use and pushes down the push handle 85, the self-destruction strip 86 is applied with force by the push handle 85 and the screw 83, the root of the self-destruction strip 86 is fractured immediately when the abdomen of the self-destruction strip is extruded by the front wall of the grab handle hole 80, and the root of the self-destruction strip 86 is fractured immediately when the screw 83 is subjected to the lever action of the positioning seat 82 and the inclined pad 81 to cause the impact force when the positioning seat 82 slips, the fracture of the self-destruction strip 86 is almost simultaneously performed with the sliding of the positioning socket 82 from the handle hole 80 and the inclined pad 81, due to the slipping of the positioning seat 82 and the dislocation of the screw 83, the screw 83 can not be screwed with the nut 84 to expand and position, which all happen and finished in a moment, moreover, the fracture part of the self-destruction strip 86 is almost at the root part and is similar to the shape of fracture, so that the self-destruction strip 86 is still connected with the positioning seat 82 and cannot fall down independently even though the self-destruction strip 86 is fractured; the screw 83 is still connected with the positioning seat 82 after being out of position and cannot fall down independently, so that the operation is simple and labor-saving, and the device is convenient, practical, safe and effective.

Referring to fig. 32 and 18, according to a preferred embodiment, the head end of the self-destructive strip 86 extends forward to form a crown 87, so that the self-destructive strip 86 with the crown 87 looks like a "7" shape in the transverse direction. According to a preferred embodiment, the handle 76 is also optionally provided with a convex protrusion 90, the convex protrusion 90 is arranged in front of the handle hole 80, the crown 87 is just overlapped with the convex protrusion 90 in front of the handle hole 80 in the middle of the side edge of the handle 76, the self-destruction strip 86 with the crown 87 is more easily broken and self-destroyed when being pressed by the front wall of the handle hole 80, and when the self-destruction strip 86 with the crown 87 is broken by pressing, the fracture is still at the root, so the operation is also time-saving, labor-saving, simple, convenient, safe and effective.

Generally, the examination type vaginal dilator is provided with a handle, a dilation self-destruction device and a dilation positioning destruction device on the right side, as shown in fig. 30-32; the operation type vaginal dilator is provided with a pressing handle, a dilation self-destruction device and a dilation positioning destruction device on the left side (not shown, only has left and right position difference compared with the structure shown in figures 30-32, and is similar to the structure shown in figure 35, but the difference is that the structure comprises a thin sheet and a poking strip). For the examination type and the operation type vaginal dilator, the upper wing and the lower wing with different shapes are designed according to the use requirement, for example, the examination type upper wing and the lower wing are long and narrow, the shape is like a duck bill, the operation type upper wing and the lower wing are short and wide, and the shape is like a bird's beak. Because the expansion positioning destroying device is designed on one side of the handle (namely the pressing handle 75 and the holding handle 76), the operation type expansion positioning destroying device is generally designed on the left side of the handle clinically, the examination type is designed on the right side of the handle, the design ensures that the visual field and the space of the whole dilator are enlarged, the expanding angle of the upper wing and the lower wing can reach more than 40 degrees during expansion, the dilator is very beneficial to various examinations and operations of obstetrics and gynecology, the vagina and the cervix are favorably and fully exposed, the vaginal orifice is favorably protected from over-expansion, the clinic use is more beneficial to diagnosis and treatment and operation, and the dilator is safer and more effective.

Although the surgical dilator and the examination dilator are arranged at different positions (specifically, the surgical dilator is arranged at the left side, and the examination dilator is arranged at the right side), the operation process of the surgical dilator and the examination dilator is basically the same as that of the examination dilator, and the operation process is described below with reference to fig. 18 and 30-32. With continued reference to fig. 30 and 18, according to a preferred embodiment, prior to clinical use, the upper and lower wings 71, 72 are in a closed position, and at the beginning of clinical use, the physician places the dilator in the vagina, with the upper and lower wings 71, 72 still in a closed position, with the self-destructive strip 86 visible intact, and the thin section 77 of the dilating self-destructive device on the handle 75 also intact, all in their normal position. With continued reference to fig. 30-31 and 18, in clinical use, the physician presses down on the handle 75, the upper wing 71 and the lower wing 72 are expanded to the desired field of view, the nut 84 is rotated into the screw 83 and secured, and the physician begins examination, diagnosis or surgery while the self-destruction strip 86 is still intact. The poke strip 78 on the handle 76 will simultaneously puncture the thin sheet 77 on the handle 75 corresponding to the position of the poke strip 78, and the self-destruction device will expand to realize automatic destruction and no recovery. Referring to fig. 32, according to a preferred embodiment, after the clinical examination or operation is completed, the doctor takes out the dilator, withdraws the nut 84 back to close the upper and lower wings, and pushes down the push handle 85, and the self-destruction strip 86 is pressed by the front wall slightly protruding backwards from the middle of the upper layer of the handle hole 80 due to the pushing force and the elastic force of the screw 83, and the root of the self-destruction strip is immediately fractured and can not be restored.

According to a preferred embodiment, please continue to refer to fig. 30, a double-layer handle hole 80 is formed at a position corresponding to the handle hole 79 near the outer side of the middle portion of the handle 76, the bottom layer is larger than the upper layer, and a cushion 81 is formed at the rear end of the bottom of the hole, which is a design of paying attention to the details, so that the bottom layer has a larger space than the upper layer.

On the other hand, the overall thickness of the positioning seat 82 can be reduced by the upper layer and the lower layer, and the positioning seat 82 is thick in the front and thin in the back, so that the positioning seat 82 is easy to slip from the handle hole 80 and the inclined pad 81 and lose the position of the screw 83 under the action of the forward pushing force of the pushing handle 85 through the transmission of the screw 83 and the lever action of the inclined pad 81, and cannot be closely matched and screwed with the screw cap 84, so that the expansion and positioning functions are lost, the three layers are self-destroyed and cannot be restored at the same time, the use is only once realized, and the purpose of avoiding cross infection of iatrogenic diseases is achieved.

With continued reference to fig. 30-32, according to a preferred embodiment, the shaft pin 74 has large ends, small middle part, solid middle and lower parts, and elastic middle and upper parts, and the diameter of the edge of the split piece is slightly larger than that of the split piece, and the whole body is dumbbell-shaped.

The dilation-positioning and/or dilation-self-destruct devices of examples 1-8 are also suitable for use with other double-, triple-, quad-and multi-winged vaginal specula. In addition, the disposable vaginal dilators of examples 1-8, can be made of degradable materials to reduce contamination, reduce harm to human health and protect the environment.

All documents referred to herein are incorporated by reference into this application as if each were individually incorporated by reference. Furthermore, it should be understood that various changes and modifications of the present invention can be made by those skilled in the art after reading the above teachings of the present invention, and these equivalents also fall within the scope of the present invention as defined by the appended claims.

Claims (10)

1. A disposable vaginal dilator comprising an upper dilator sheet and a lower dilator sheet, the upper dilator sheet comprising: the upper wing and a press handle connected with the upper wing; the vaginal dilator is characterized by further comprising a dilation, positioning and destroying device which is a hook-and-loop positioning self-destroying device or a spiral positioning instant-destroying device.

2. The disposable vaginal dilator of claim 1, wherein the dilation positioning and destruction means is a hook positioning and self-destruction means, the hook positioning and self-destruction means comprises a positioning seat fixed on the handle hole of the handle, the positioning seat is arranged with a self-destruction strip and a positioning rod in front and back, the positioning rod is provided with a positioning hook on the back side capable of engaging with the positioning button at the end of the handle hole.

3. The disposable vaginal dilator of claim 1, wherein the dilation, positioning and destruction device is a spiral positioning and destruction device, the spiral positioning and destruction device comprises a positioning seat fixed on a handle hole of the handle, the positioning seat is provided with a self-destruction strip and a screw rod in front and back arrangement, the lower part of the screw rod is provided with a screw rod front dome for placing the self-destruction strip, and the screw rod is threaded through a handle hole of the handle and is screwed and fixed with a screw cap.

4. The disposable vaginal dilator of claim 1, wherein the upper dilator sheet includes: the upper wing and the pressing handle extend in a left and right circular arc shape from the rear end of the upper wing and continue to extend downwards after being connected into a whole at the middle position, a pressing handle hole and a positioning buckle are arranged on the pressing handle, and the positioning buckle is arranged at the tail end of the pressing handle hole;

the lower expansion sheet comprises: the lower wing and the grab handle which is integrated with the lower wing and extends downwards in the middle position are arranged on the grab handle, a grab handle hole and an inclined pad are arranged on the grab handle, and the inclined pad is arranged at the tail end of the grab handle hole;

the expansion positioning destroying device is a hook buckle positioning self-destroying device, the hook buckle positioning self-destroying device comprises a positioning seat, self-destroying strips and a positioning rod are arranged on the positioning seat in the front and at the back, a positioning hook which can be engaged with the positioning buckle at the tail end of the press handle hole is arranged on the back of the positioning rod,

wherein, the positioning seat is arranged in the handle hole and the inclined pad, and the positioning rod is penetrated through the handle hole on the press handle.

5. The disposable vaginal dilator of claim 1, wherein the upper dilator sheet includes: the upper wing and the pressing handle are integrated with the upper wing and extend backwards along the tail end of one side of the upper wing, a pressing handle hole and a positioning buckle are arranged on the pressing handle, and the positioning buckle is arranged at the tail end of the pressing handle hole;

the lower expansion sheet comprises: the lower wing and the grab handle are integrated with the lower wing and extend downwards from the rear end of the lower wing, the grab handle is provided with a grab handle hole and an inclined pad, and the inclined pad is arranged at the tail end of the grab handle hole;

the expansion positioning destroying device is a hook buckle positioning self-destroying device, the hook buckle positioning self-destroying device comprises a positioning seat, self-destroying strips and a positioning rod are arranged in front and back above the positioning seat, a positioning hook capable of being meshed with the positioning buckle at the tail end of the press handle hole is arranged on the back of the positioning rod,

wherein, the positioning seat is arranged in the handle hole and the inclined pad, and the positioning rod is penetrated through the handle hole on the press handle.

6. The disposable vaginal dilator of claim 1, wherein the upper dilator sheet includes: the upper wing and the pressing handle extend leftwards and rightwards from the rear end of the upper wing in a circular arc shape, are connected into a whole at the middle position and then continue to extend downwards, and a pressing handle hole is formed in the pressing handle;

the lower expansion sheet comprises: the lower wing and the grab handle which is integrated with the lower wing and extends downwards in the middle position are arranged on the grab handle, a grab handle hole and an inclined pad are arranged on the grab handle, and the inclined pad is arranged at the tail end of the grab handle hole;

the expansion positioning destroying device is a spiral positioning destroying device, the spiral positioning destroying device comprises a positioning seat, self-destroying strips and a screw rod capable of being screwed with a screw cap for positioning are arranged on the positioning seat in the front and at the back, and the lower part of the screw rod is provided with a screw rod front dome capable of accommodating the self-destroying strips;

wherein, the positioning seat is arranged in the handle hole and the inclined pad, and the screw rod is penetrated with the handle hole on the handle.

7. The disposable vaginal dilator of claim 1, wherein the upper dilator sheet includes: the upper wing and the pressing handle are integrated with the upper wing and extend backwards along the tail end of one side of the upper wing, and a pressing handle hole is formed in the pressing handle;

the lower expansion sheet comprises: the lower wing and the grab handle are integrated with the lower wing and extend downwards from the rear end of the lower wing, the grab handle is provided with a grab handle hole and an inclined pad, and the inclined pad is arranged at the tail end of the grab handle hole;

the expansion positioning destroying device is a spiral positioning destroying device, the spiral positioning destroying device comprises a positioning seat, self-destroying strips and a screw rod capable of being screwed with a screw cap for positioning are arranged on the positioning seat in the front and at the back, and the lower part of the screw rod is provided with a screw rod front dome capable of accommodating the self-destroying strips;

wherein, the positioning seat is arranged in the handle hole and the inclined pad, and the screw rod is penetrated with the handle hole on the handle.

8. The disposable vaginal dilator of any one of claims 1 to 7 further comprising a dilating self-destructive device comprising a thin sheet on the handle and a poke strip on the handle.

9. The disposable vaginal dilator of any one of claims 1 to 7, wherein the shaft pins are large at both ends, small in the middle, solid at the middle-lower part, and elastic at the middle-upper part by being provided with a piece, and the edge diameter of the piece is slightly larger than the diameter of the piece, so that the whole vaginal dilator looks like a dumbbell.

10. The disposable vaginal dilator of claim 1, wherein the dilation positioning and disrupting means is further adapted for use with other double, triple, quadruple or multi-winged vaginal dilators.

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