Cleaning and medicine feeding device for gynecology

文档序号:1896754 发布日期:2021-11-30 浏览:14次 中文

阅读说明:本技术 一种妇科用的清洗给药器 (Cleaning and medicine feeding device for gynecology ) 是由 任珊 于 2021-09-14 设计创作,主要内容包括:本发明公开了一种妇科用的清洗给药器,属于医疗器械领域。一种妇科用的清洗给药器,包括竖直放置的长杆,还包括:套管,滑动连接在所述长杆的下端外壁,其中,所述套管的上端外壁固定连接有限位板,所述长杆的上端设有第一存储槽与第二存储槽,所述长杆的上端螺纹连接有端盖;多个圆周分布的喷管,均固定连接在所述套管的内壁内,其中,多个所述喷管的侧壁均固定安装有延伸至套管外壁的喷嘴,所述喷管与第一存储槽以及第二存储槽之间通过连通机构连接;固定杆,设置在所述套管内,并与所述长杆的下端固定连接;本发明可以更加方便高效的对阴道进行清洗与上药,且不易造成交叉感染,间接提升治疗效果。(The invention discloses a cleaning and dosing device for gynecology, and belongs to the field of medical instruments. A cleaning and drug delivery device for gynecology comprises a vertically placed long rod and further comprises: the sleeve is connected to the outer wall of the lower end of the long rod in a sliding mode, a limiting plate is fixedly connected to the outer wall of the upper end of the sleeve, a first storage groove and a second storage groove are formed in the upper end of the long rod, and an end cover is connected to the upper end of the long rod in a threaded mode; the spray pipes are distributed circumferentially and are fixedly connected into the inner wall of the sleeve, nozzles extending to the outer wall of the sleeve are fixedly mounted on the side walls of the spray pipes, and the spray pipes are connected with the first storage tank and the second storage tank through a communicating mechanism; the fixing rod is arranged in the sleeve and is fixedly connected with the lower end of the long rod; the vagina cleaning and medicine applying device can clean and apply medicine to the vagina more conveniently and efficiently, cross infection is not easy to cause, and the treatment effect is improved indirectly.)

1. The utility model provides a washing ware of dosing of gynaecology usefulness, includes vertical stock (1) of placing, its characterized in that still includes:

a sleeve (2) which is connected with the outer wall of the lower end of the long rod (1) in a sliding way,

the outer wall of the upper end of the sleeve (2) is fixedly connected with a limiting plate (3), the upper end of the long rod (1) is provided with a first storage groove (7) and a second storage groove (8), and the upper end of the long rod (1) is in threaded connection with an end cover (5);

a plurality of circumferentially distributed spray pipes (13) which are all fixedly connected in the inner wall of the sleeve (2),

the side walls of the plurality of spray pipes (13) are fixedly provided with nozzles (14) extending to the outer wall of the sleeve (2), and the spray pipes (13) are connected with the first storage tank (7) and the second storage tank (8) through a communicating mechanism;

a fixing rod (31) which is arranged in the sleeve (2) and is fixedly connected with the lower end of the long rod (1),

the outer wall of the fixing rod (31) is provided with a water-absorbing sponge (32), the lower end of the sleeve (2) is provided with an outlet (33) matched with the water-absorbing sponge (32), and a sealing block (34) fixedly connected with the lower end of the fixing rod (31) is sleeved in the outlet (33);

a cylindrical box (4) which is rotatably connected with the upper end of the end cover (5),

the upper end of the end cover (5) is fixedly provided with a handle (9), a cavity (16) is arranged in the handle (9), a driving mechanism connected with the end cover (5) is arranged in the cavity (16), and an inflating mechanism connected with the first storage tank (7) and the second storage tank (8) is arranged on the outer wall of the end cover (5).

2. The gynecological washing and administration device according to claim 1, wherein the communication mechanism comprises two liquid outlet pipes (10) fixedly connected to the outer wall of the long rod (1), two liquid outlet pipes (10) are respectively communicated with the inner bottom of the first storage tank (7) and the inner bottom of the second storage tank (8), two liquid outlet pipes (10) are internally and fixedly provided with a first valve (11), the limiting plate (3) is internally and fixedly connected with a ring pipe (12), the ring pipe (12) and the two liquid outlet pipes (10) are fixedly connected through a hose (15), and the plurality of spray pipes (13) are fixedly connected with the ring pipe (12).

3. A gynecological cleaning applicator according to claim 1, wherein the drive mechanism comprises a drive motor (17) fixedly mounted in the cavity (16), an output shaft of the drive motor (17) extends into the cylindrical box (4) and is fixedly connected with a drive gear (18), and the upper end of the end cap (5) is fixedly connected with a reduction gear (19) engaged with the drive gear (18).

4. The gynecological cleaning applicator according to claim 3, wherein the inflation mechanism comprises sliding grooves (20) disposed on the left and right sides of the end cap (5), two sliding blocks (22) extending to the outer wall of the end cap (5) are slidably connected in the two sliding grooves (20), the two sliding blocks (22) are respectively and elastically connected with the inner walls of the two sliding grooves (20) through elastic air bags (21), a plurality of cambered surface convex blocks (23) are fixedly connected with the inner wall of the cylindrical box (4), the side walls of the two elastic air bags (21) are respectively and fixedly connected with an air suction pipe (25) and an air inflation pipe (24) communicated with the elastic air bags, one-way valves are respectively and fixedly mounted in the air suction pipe (25) and the air inflation pipe (24), and the tail ends of the two air inflation pipes (24) respectively extend into the first storage groove (7) and the second storage groove (8), equal fixedly connected with piston (29) in first holding tank (7) and second holding tank (8), have in the outer wall of end cover (5) fixed with first holding tank (7) and second holding tank (8) complex gas release pipe (26), two equal fixed mounting has second valve (27) in gas release pipe (26).

5. A gynecological cleaning applicator according to claim 4, characterized in that a pull cord (30) is fixedly connected between both pistons (29) and the end cap (5).

6. A gynecological cleaning applicator according to claim 4, characterized in that the ends of the two sliders (22) are each fixedly provided with a pulley (28) engaging the inner wall of the cylindrical case (4).

7. A gynecological cleaning applicator according to claim 4, characterized in that a return spring is fixedly mounted in the inner wall of both elastic balloons (21).

8. A gynecological cleaning applicator according to claim 1, wherein a heating rod (6) extending into the long rod (1) is fixedly installed in the fixing rod (31), and an electric heating wire is fixedly installed in the heating rod (6).

9. A gynecological cleaning applicator according to claim 1, characterized in that the outer wall of the cannula (2) is provided with hemispherical anti-slip threads.

10. A gynecological cleaning applicator according to claim 3, characterized in that an accumulator (35) is fixedly mounted in the cavity (16).

Technical Field

The invention relates to the technical field of medical instruments, in particular to a cleaning and drug delivery device for gynecology.

Background

Gynecological diseases are diseases which are difficult to treat at present, diseases suffered by female reproductive systems are mostly vulvar diseases, vaginal diseases, uterine diseases, fallopian tube diseases, ovarian diseases and the like, and the common diseases are as follows: hysteromyoma, ovarian cyst, vaginitis, cervicitis, cervical erosion, pelvic inflammation, abnormal leucorrhea and other diseases.

When treating gynecological diseases, the vagina is often cleaned to remove foreign bodies or focus, and then the medicine is applied to the focus. When the cleaning operation is carried out, the basin is mostly used for receiving water or diluting liquid medicine to carry out external cleaning and dressing, and the cleaning effect of the cleaning mode is poor, the medicine is not convenient enough, and the poor infection of hands is easily caused.

Disclosure of Invention

The invention aims to solve the problem that in the prior art, the cleaning and medicine application are inconvenient when gynecological diseases are treated, and provides a cleaning and medicine applying device for gynecology.

In order to achieve the purpose, the invention adopts the following technical scheme:

a cleaning and drug delivery device for gynecology comprises a vertically placed long rod and further comprises: the sleeve is connected to the outer wall of the lower end of the long rod in a sliding mode, a limiting plate is fixedly connected to the outer wall of the upper end of the sleeve, a first storage groove and a second storage groove are formed in the upper end of the long rod, and an end cover is connected to the upper end of the long rod in a threaded mode; the spray pipes are distributed circumferentially and are fixedly connected into the inner wall of the sleeve, nozzles extending to the outer wall of the sleeve are fixedly mounted on the side walls of the spray pipes, and the spray pipes are connected with the first storage tank and the second storage tank through a communicating mechanism; the fixing rod is arranged in the sleeve and is fixedly connected with the lower end of the long rod, wherein the outer wall of the fixing rod is provided with a water absorption sponge, the lower end of the sleeve is provided with an outlet matched with the water absorption sponge, and a sealing block fixedly connected with the lower end of the fixing rod is sleeved in the outlet; the cylindrical box rotates to be connected the upper end of end cover, wherein, the upper end fixed mounting of end cover has the handle, be equipped with the cavity in the handle, be equipped with the actuating mechanism who is connected with the end cover in the cavity, the outer wall of end cover is equipped with the mechanism of aerifing of being connected with first holding tank and second holding tank.

In order to carry the spray tube with the liquid in first holding tank and the second holding tank, preferably, the feed mechanism includes two drain pipes of fixed connection at the outer wall of stock pipe, two the drain pipe is linked together, two with the interior bottom of first holding tank and second holding tank respectively equal fixed mounting has first valve in the drain pipe, fixedly connected with ring pipe in the limiting plate, all through hose fixed connection, it is a plurality of between ring pipe and two drain pipes the spray tube all with ring pipe fixed connection.

In order to drive the end cover and the sleeve to rotate, preferably, the driving mechanism comprises a driving motor fixedly installed in the cavity, an output shaft of the driving motor extends to a driving gear fixedly connected in the cylindrical box, and a reduction gear in meshed connection with the driving gear is fixedly connected to the upper end of the end cover.

In order to make the whole device more convenient to use, further, the inflating mechanism comprises sliding chutes arranged at the left side and the right side of the end cover, sliding blocks extending to the outer wall of the end cover are connected in the two sliding chutes in a sliding manner, the two sliding blocks are respectively and elastically connected with the inner walls of the two sliding chutes through elastic air bags, the inner wall of the columnar box is fixedly connected with a plurality of cambered surface convex blocks, the side walls of the two elastic air bags are fixedly connected with an air suction pipe and an air inflation pipe which are communicated with the elastic air bags, the air suction pipe and the air charging pipes are both fixedly provided with one-way valves, the tail ends of the two air charging pipes respectively extend into the first storage groove and the second storage groove, equal fixedly connected with piston in first holding tank and the second holding tank, have in the outer wall of end cover fixed with first holding tank and second holding tank complex gas release pipe, two equal fixed mounting has the second valve in the gas release pipe.

In order to conveniently reset the pistons, furthermore, pull ropes are fixedly connected between the two pistons and the end covers.

In order to reduce the frictional resistance between the sliding blocks and the cylindrical box, furthermore, the tail ends of the two sliding blocks are fixedly provided with pulleys matched with the inner wall of the cylindrical box.

In order to facilitate the elastic air bags to reset faster, furthermore, reset springs are fixedly arranged in the inner walls of the two elastic air bags.

In order to improve the use comfort of the user during cleaning and drug administration, preferably, a heating rod extending into the long rod is fixedly installed in the fixing rod, and a heating wire is fixedly installed in the heating rod.

In order to improve the cleaning efficiency of the sleeve, the outer wall of the sleeve is preferably provided with hemispherical anti-slip grains.

In order to make the whole device more convenient, furthermore, a storage battery is fixedly arranged in the cavity.

Compared with the prior art, the invention provides a gynecological cleaning drug delivery device, which has the following beneficial effects:

1. according to the gynecological cleaning and medicine feeding device, the reduction gear is driven to rotate through the matching of the driving motor and the driving gear, the reduction gear can drive the end cover sleeve to rotate, and the nozzle on the outer wall of the sleeve sprays cleaning liquid and medicine liquid into a vagina respectively, so that the vagina is cleaned and sprayed with medicine in a rotary mode, the cleaning and medicine spraying are more convenient, and the cleaning and medicine spraying efficiency is greatly improved;

2. according to the gynecological cleaning drug delivery device, the rotating end cover drives the sliding block on the outer wall to sweep at the inner circumference of the cylindrical box, the arc-shaped convex block can indirectly extrude the sliding block, and the elastic air bag can convey the internal air into the first storage tank and the second storage tank, so that the piston can automatically push the cleaning fluid and the liquid medicine into the spray pipe, and the whole device is more convenient and labor-saving to use;

3. this ware of dosing washs of gynaecology's usefulness upwards impels the sleeve pipe through the limiting plate to make the intraductal sponge that absorbs water of sleeve pass the export and enter into the vagina, absorb the remaining washing liquid of washing back in the pivoted in the sponge that absorbs water, thereby make the difficult easy washing liquid dilution of medicine liquid, thereby indirectness promotes treatment.

Drawings

FIG. 1 is a schematic axial view of a gynecological cleaning applicator according to the present invention;

FIG. 2 is a front view of a sectional structure of the gynecological cleaning applicator of the present invention;

FIG. 3 is a schematic view of the structure A in FIG. 2 of a gynecological cleaning applicator according to the present invention;

FIG. 4 is a schematic structural view of the cleaning and administration device for gynecology in the position B in FIG. 2;

FIG. 5 is a schematic structural view at C in FIG. 2 of a gynecological cleaning applicator of the present invention;

fig. 6 is a sectional plan view of the cylindrical box of the gynecological cleaning and administration device.

In the figure: 1. a long rod; 2. a sleeve; 3. a limiting plate; 4. a cylindrical box; 5. an end cap; 6. a heating rod; 7. a first storage tank; 8. a second storage tank; 9. a handle; 10. a liquid outlet pipe; 11. a first valve; 12. an annular tube; 13. a nozzle; 14. a nozzle; 15. a hose; 16. a cavity; 17. a drive motor; 18. a driving gear; 19. a reduction gear; 20. a chute; 21. an elastic air bag; 22. a slider; 23. a cambered surface bump; 24. an inflation tube; 25. an air intake duct; 26. discharging the air pipe; 27. a second valve; 28. a pulley; 29. a piston; 30. pulling a rope; 31. fixing the rod; 32. a water-absorbing sponge; 33. an outlet; 34. a sealing block; 35. and (4) a storage battery.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1:

referring to fig. 1-6, a gynecological cleaning and administration device comprises a vertically arranged long rod 1, and further comprises: the sleeve 2 is connected to the outer wall of the lower end of the long rod 1 in a sliding mode, wherein the outer wall of the upper end of the sleeve 2 is fixedly connected with a limiting plate 3, a first storage groove 7 and a second storage groove 8 are formed in the upper end of the long rod 1, and an end cover 5 is connected to the upper end of the long rod 1 in a threaded mode; a plurality of circumferentially distributed spray pipes 13 are fixedly connected in the inner wall of the casing 2, wherein the side walls of the plurality of spray pipes 13 are fixedly provided with nozzles 14 extending to the outer wall of the casing 2, and the spray pipes 13 are connected with the first storage tank 7 and the second storage tank 8 through a communicating mechanism; the fixing rod 31 is arranged in the sleeve 2 and is fixedly connected with the lower end of the long rod 1, wherein the outer wall of the fixing rod 31 is provided with a water absorption sponge 32, the lower end of the sleeve 2 is provided with an outlet 33 matched with the water absorption sponge 32, and a sealing block 34 fixedly connected with the lower end of the fixing rod 31 is sleeved in the outlet 33; the cylindrical box 4 is rotatably connected to the upper end of the end cover 5, wherein the upper end of the end cover 5 is fixedly provided with a handle 9, a cavity 16 is arranged in the handle 9, a driving mechanism connected with the end cover 5 is arranged in the cavity 16, the outer wall of the end cover 5 is provided with an inflating mechanism connected with the first storage tank 7 and the second storage tank 8, when in use, the end cover 5 is detached from the long rod 1, then cleaning liquid and liquid medicine are respectively infused in the first storage tank 7 and the second storage tank 8, then the end cover 5 is reset and fixed on the long rod 1, then the sleeve 2 is slowly inserted into the vagina, then the long rod 1 and the sleeve 2 at the end cover 5 and the lower end can be driven to rotate through the driving mechanism, the inflating mechanism can automatically convey the cleaning liquid and the liquid medicine in the first storage tank 7 and the second storage tank 8 into the spray pipe 13 through the communicating mechanism, and then the cleaning liquid medicine is uniformly sprayed to the inner wall of the vagina from the nozzle 14 on the outer wall of the sleeve 2, the washing and spraying effects during rotation are greatly improved, and cross infection is not easy to occur.

Furthermore, a heating rod 6 extending into the long rod 1 is fixedly installed in the fixing rod 31, a heating wire is fixedly installed in the heating rod 6, and the heating wire can heat the cleaning liquid and the liquid medicine in the first storage tank 7 and the second storage tank 8, so that the use comfort of the whole device is improved.

Furthermore, the outer wall of the sleeve 2 is provided with hemispherical anti-slip lines, so that the cleaning efficiency of the vagina when the sleeve 2 rotates can be greatly improved.

Example 2:

referring to fig. 2-4, substantially the same as in example 1, further: two drain pipes 10 of intercommunication mechanism including fixed connection at the outer wall of stock pole 1, two drain pipes 10 are linked together with the interior bottom of first holding tank 7 and second holding tank 8 respectively, equal fixed mounting has first valve 11 in two drain pipes 10, fixedly connected with annular pipe 12 in the limiting plate 3, all through hose 15 fixed connection between annular pipe 12 and two drain pipes 10, a plurality of spray tubes 13 all with annular pipe 12 fixed connection, washing liquid in first holding tank 7 and the second holding tank 8 can enter into hose 15 through drain pipe 10 with the liquid medicine, then in hose 15 enters into annular pipe 12, at last in annular pipe 12 enters into spray tube 13.

Example 3:

referring to fig. 2 and 4, basically the same as embodiment 1, further: the driving mechanism comprises a driving motor 17 fixedly installed in the cavity 16, an output shaft of the driving motor 17 extends to a driving gear 18 fixedly connected in the cylindrical box 4, the upper end of the end cover 5 is fixedly connected with a reduction gear 19 meshed with the driving gear 18, the driving motor 17 can drive the reduction gear 19 to rotate through the driving gear 18, and the reduction gear 19 can drive the long rod 1 and the sleeve 2 at the lower end to rotate through the end cover 5.

Furthermore, a storage battery 35 is fixedly installed in the cavity 16, and the storage battery 35 can supply power to the driving motor 17.

Example 4:

referring to fig. 2 and 4, basically the same as embodiment 1, further: the inflation mechanism comprises sliding chutes 20 arranged at the left side and the right side of the end cover 5, sliding blocks 22 extending to the outer wall of the end cover 5 are connected in the two sliding chutes 20 in a sliding manner, the two sliding blocks 22 are respectively connected with the inner walls of the two sliding chutes 20 in an elastic manner through elastic air bags 21, a plurality of cambered surface convex blocks 23 are fixedly connected with the inner wall of the cylindrical box 4, the side walls of the two elastic air bags 21 are respectively and fixedly connected with an air suction pipe 25 and an air inflation pipe 24 communicated with the two elastic air bags 21, one-way valves are fixedly arranged in the air suction pipe 25 and the air inflation pipe 24, the tail ends of the two air inflation pipes 24 respectively extend into the first storage tank 7 and the second storage tank 8, pistons 29 are fixedly connected in the first storage tank 7 and the second storage tank 8, air release pipes 26 matched with the first storage tank 7 and the second storage tank 8 are fixed in the outer wall of the end cover 5, second valves 27 are fixedly arranged in the two air release pipes 26, when the end cover 5 rotates, the end cover 5 can drive the sliding block 22 of the outer wall to sweep in the inner circumference of the cylindrical box 4, when the sliding block 22 contacts the cambered surface bump 23, the sliding block 22 can extrude the elastic air bag 21, the elastic air bag 21 can convey the internal air into the first storage tank 7 and the second storage tank 8 through the inflation tube 24, in the first storage tank 7 and the second storage tank 8, the piston 29 can extrude the cleaning liquid and the liquid medicine into the annular tube 12 through the liquid outlet tube 10 under the action of air pressure, and then convey the cleaning liquid and the liquid medicine into the plurality of spray tubes 13 which are circumferentially distributed from the annular tube 12, so that the whole device is more convenient and labor-saving to use, when the sliding block 22 does not contact the cambered surface bump 23, the elastic air bag 21 can elastically reset, and air is sucked through the air suction tube 25.

Furthermore, a pull rope 30 is fixedly connected between the two pistons 29 and the end cover 5, after the piston 29 is used, the end cover 5 is opened, and then the piston 29 can be reset to the top of the first storage groove 7 and the second storage groove 8 through the pull rope 30.

Furthermore, the end of each of the two sliding blocks 22 is fixedly provided with a pulley 28 which is matched with the inner wall of the cylindrical box 4, and the friction resistance between the sliding blocks 22 and the inner wall of the cylindrical box 4 can be greatly reduced by the pulleys 28.

Furthermore, the inner walls of the two elastic air bags 21 are fixedly provided with return springs, and the return springs can enable the elastic air bags 21 to be quickly reset.

The working principle is as follows: in the invention, when in use, the end cover 5 is detached from the long rod 1, then the first storage tank 7 and the second storage tank 8 are respectively filled with cleaning liquid and liquid medicine, then the end cover 5 is reset and fixed on the long rod 1, then the sleeve 2 is slowly inserted into the vagina, then the first valve 11 in the liquid outlet pipe 10 on the side wall of the first storage tank 7 is opened, the second valve 27 corresponding to the first storage tank 7 is closed, then the first valve 11 on the side wall of the second storage tank 8 is closed, the second valve 27 is opened, then the driving motor 17 is started, the driving motor 17 drives the reducing gear 19 to rotate through the driving gear 18, the reducing gear 19 drives the long rod 1 and the sleeve 2 at the lower end to rotate through the end cover 5, when the end cover 5 rotates, the end cover 5 drives the slide block 22 on the outer wall to sweep in the cylindrical box 4, when the slide block 22 contacts the cambered surface lug 23, the slide block 22 can extrude the elastic air bag 21, the elastic air bag 21 can convey the internal air into the first storage tank 7 and the second storage tank 8 through the inflation tube 24, the piston 29 can convey the cleaning liquid into the annular tube 12 through the extrusion of the liquid outlet tube 10 under the action of air pressure in the first storage tank 7, then convey the cleaning liquid into the plurality of circumferentially distributed spray tubes 13 from the annular tube 12, and finally spray the cleaning liquid into the vagina from the plurality of nozzles 14 on the outer wall of the sleeve 2, so that the vagina is washed in a rotary manner, the washing is more convenient, the washing efficiency is greatly improved, the air entering the second storage tank 8 can be discharged from the air release tube 26, then the sleeve 2 is pushed upwards through the limiting plate 3, so that the water-absorbing sponge 32 in the sleeve 2 passes through the outlet 33 to enter the vagina, the water-absorbing sponge 32 can absorb the cleaning liquid remained after the cleaning while rotating, then the sleeve 2 is slid downwards to reset, the water absorption sponge 32 is stored in the sleeve 2 again, then the driving motor 17 and the first valve 11 corresponding to the first storage tank 7 are closed, the second valve 27 corresponding to the first storage tank 7 is opened, then the first valve 11 corresponding to the second storage tank 8 is opened, the second valve 27 corresponding to the second storage tank 8 is closed, at the moment, the driving motor 17 is opened again, the piston 29 can extrude the liquid medicine into the spray pipe 13 by the air pressure input into the second storage tank 8 by the elastic air bag 21, then the liquid medicine is uniformly sprayed on the inner wall of the vagina from the nozzle 14, the spraying effect is more uniform, both hands are not easily infected, and after the liquid medicine is absorbed by the water absorption sponge 32, the effect of the liquid medicine is not easily diluted by the liquid medicine, so that the treatment effect is indirectly improved, when the slide block 22 is not contacted with the cambered surface bump 23, the elastic air bag 21 is elastically reset, and sucks air through the air suction pipe 25.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

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