Fumigating device for treating vaginitis

Abstract

The invention relates to the technical field of medical instruments, in particular to a fumigation device for treating vaginitis. Comprising a fumigating body and a fumigating rod communicated with the fumigating body through a guide pipe. The fumigating main body can generate steam with medicine components, and the steam is guided to the fumigating rod through the guide pipe; one end, far away from the guide pipe, of the fumigation rod is arc-shaped; expansion strips are uniformly arranged on the outer wall of the fumigation rod around a central shaft; the length direction of the expansion strip is consistent with the axial direction of the fumigation rod; the end part of the expansion strip extends towards the corresponding end part of the fumigation rod; steam is discharged from one end, far away from the guide pipe, of the fumigating rod; the length of the fumigation bar is greater than the depth of the fumigation bar inserted into the vagina; the portion between the inner wall of the vagina and the outer wall of the fumigation rod is expanded through the expansion strip to form the backflow gap, so that steam inflated from the arc-shaped end of the fumigation rod can be discharged along the backflow gap to achieve replacement, steam with medicinal components is in smooth contact with the inner wall of the vagina, and the better vagina fumigation effect is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical appliances, and specifically relates to a fumigation device for treating vaginitis. Background Art

[0002] Fumigation is a common method for treating vaginitis. The principle is to dissolve the volatile components of drugs or herbs in water, and then generate steam through heating, which is introduced into the vagina to achieve the purpose of sterilization, anti - inflammation, and symptom relief. These drugs usually have antibacterial, anti - inflammatory, antiviral and other effects, and can effectively remove pathogens and inflammation in the vagina. The fumigation device is the carrier used in the fumigation method for treating vaginitis.

[0003] Before using the fumigation device, a disinfected fumigation rod needs to be inserted into the vagina. Subsequently, the fumigation main body in the fumigation device is started, and the drug steam generated by the fumigation main body is guided through a catheter into the fumigation rod. The steam discharged from the fumigation rod is used to fumigate the inside of the vagina. Since the contractile vagina wraps the rod - shaped outer wall of the fumigation rod, when the inner wall of the vagina is in sealed contact with the outer wall of the fumigation rod, the steam discharged into the vagina from the fumigation rod cannot be discharged in time. As a result, new drug steam cannot enter the vagina in time, and the drug steam inside the vagina cannot be effectively replaced, affecting the fumigation treatment effect.

[0004] In view of this, in order to overcome the above - mentioned technical problems, the present invention proposes a fumigation device for treating vaginitis, which solves the above - mentioned technical problems. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art, the present invention proposes a fumigation device for treating vaginitis. The present invention forms a reflux gap between the inner wall of the vagina and the outer wall of the fumigation rod through an expansion strip, so that the steam charged from the arc - shaped end of the fumigation rod can be discharged along the reflux gap for replacement, and the steam with medicinal components can smoothly contact the inner wall of the vagina, achieving a better vaginal fumigation effect.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: A fumigation device for treating vaginitis according to the present invention includes a fumigation main body and a fumigation rod connected to the fumigation main body through a catheter; the fumigation main body can generate steam with drug components and guide it to the fumigation rod through the catheter; one end of the fumigation rod away from the catheter is arc - shaped; the outer wall of the fumigation rod is evenly provided with expansion strips around the central axis; the length direction of the expansion strips is consistent with the axial direction of the fumigation rod; the end of the expansion strip extends towards the corresponding end of the fumigation rod; the steam is discharged from one end of the fumigation rod away from the catheter; the length of the fumigation rod is greater than the depth of insertion into the vagina; adjacent expansion strips form a reflux gap in the circumferential direction of the fumigation rod; the steam discharged from one end of the fumigation rod is discharged towards the outside along the reflux gap.

[0007] Preferably, a rod cavity is provided on the inner wall of the fumigation rod; an expansion groove is provided through the inner wall of the rod cavity and the outer wall of the fumigation rod; one end of the expansion groove extends toward the arc-shaped end of the fumigation rod; the position of the expansion groove corresponds to the position of the expansion bar; the expansion bar can slide radially along the fumigation rod and be sealed in the expansion groove; one end of the expansion groove can be opened during the process of the expansion bar expanding and sliding outward; the outer edge of the expansion bar can adapt to the outer wall of the fumigation rod after retracting into the expansion groove.

[0008] Preferably, the fumigation rod is connected to the catheter through an adapter; the catheter is eccentrically connected to the other end of the rod cavity through a first through groove inside the adapter; one end of the rod cavity is arranged close to the arc-shaped end of the fumigation rod; the center positions of one end and the other end of the rod cavity are connected through a central capsule; the outer wall of the middle section of the central capsule is connected to the inner edge of the expansion strip; a second through groove is arranged inside the adapter; the shape of the second through groove is cylindrical; the central axis of the second through groove is parallel to the central axis of the fumigation rod; a threaded hole is arranged on the side of the adapter away from the fumigation rod; the inner thread of the threaded hole is connected to a screw rod; the second through groove is movably sealed and connected to a piston; the center of the piston is fixedly connected to the screw rod; the piston divides the second through groove into a near capsule cavity and a far capsule cavity; the far capsule cavity is connected to the outside; the near capsule cavity is connected to the inside of the central capsule.

[0009] Preferably, the wall thickness of the central capsule decreases as it approaches the middle section; and the middle section of the central capsule expands first compared to the end sections during the process of filling the internal medium.

[0010] Preferably, the central capsule is in a spiral twist shape after expansion; and the outer surface of the central capsule forms a spiral flow channel after the central capsule is expanded.

[0011] Preferably, the expansion strip is composed of a base strip and two expansion strips; the middle section of the base strip is connected to the middle section of the central capsule; the side of the base strip facing away from the central capsule is fixedly connected to the two expansion strips; the outer edges of the two expansion strips adapt to the outer wall of the fumigation rod after the expansion strips are retracted into the expansion groove; the two expansion strips have elastic force, and after the expansion strips extend out of the expansion groove, the outer edges of the two expansion strips can bend away from each other under the action of their own elastic force.

[0012] Preferably, the two expansion strips on the same base strip have a pressure relief gap during the process of retracting the expansion groove; the gas in the vagina can be discharged along the pressure relief gap during the insertion of the fumigation rod.

[0013] Preferably, the expansion slot is provided with an arc chamfer at an opening away from the central capsule; and the two expansion strips are in an outwardly expanded state at the inner side of the opening of the expansion slot.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The present invention forms a reflux gap between the vaginal inner wall and the outer wall of the fumigation rod through an expansion strip, so that the steam filled from the arc-shaped end of the fumigation rod can be discharged along the reflux gap for replacement, and the steam with medicinal components can smoothly contact the vaginal inner wall, achieving a better vaginal fumigation effect.

[0016] 2. The present invention retracts the expansion strip into the expansion groove during the insertion of the fumigation rod into the vagina, thereby avoiding damage to the vagina caused by the insertion of the expansion strip to the fumigation rod. In addition, after the fumigation rod is inserted into the vagina, the expansion strip extends out of the expansion groove, realizing the expansion of the gap between the outer wall of the fumigation rod and the vaginal inner wall, facilitating fumigation. The expanded expansion strip also makes the fumigation rod stuck in the vagina, preventing the fumigation rod from moving out of the vagina during fumigation and improving the fumigation stability.

[0017] 3. The present invention sets the expanded central capsule into a spiral twist shape, so that a spiral flow channel is formed on the outer wall of the central capsule. On the one hand, it meets the requirement of ejecting the expansion strip out of the expansion groove, and on the other hand, it expands the gap between the outer wall of the central capsule and the inner wall of the rod cavity, increasing the flow rate of steam between the outer wall of the central capsule and the inner wall of the rod cavity, and improving the fumigation effect.

[0018] 4. The present invention makes the two expansion strips bend in the direction away from each other during the process of extending out of the expansion groove, so that on the one hand, the damage to the vaginal inner wall caused by pushing it open is reduced, and on the other hand, the gap between the vaginal inner wall and the outer wall of the fumigation rod is expanded, further improving the fumigation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the drawings and embodiments.

[0020] Figure 1 is a perspective view of the fumigation rod and the adapter seat in the present invention;

[0021] Figure 2 is Figure 1 a perspective view from another angle;

[0022] Figure 3 is a perspective view of the expansion strip moving out of the expansion groove;

[0023] Figure 4 is Figure 3 a perspective view from another angle;

[0024] Figure 5 is a position diagram of the rod cavity in the present invention;

[0025] Figure 6 is a schematic diagram of the expansion strip opening in the present invention;

[0026] Figure 7 is a schematic diagram of the expansion strip not opening in the present invention;

[0027] Figure 8 is a three-dimensional view of the central capsule in the present invention;

[0028] Figure 9 is Figure 1 a plane cross-sectional view of

[0029] Figure 10 is a cross-sectional view of the unactivated fumigation rod of the present invention;

[0030] Figure 11 is a cross-sectional view of the activated fumigation rod of the present invention.

[0031] In the figure: conduit 1, fumigation rod 2, return gap 21, rod cavity 22, expansion groove 23, arc chamfer 24, expansion strip 3, base strip 31, extension strip 32, pressure relief gap 33, adapter seat 4, first through groove 41, second through groove 42, near capsule cavity 421, far capsule cavity 422, threaded hole 43, screw rod 44, piston 45, central capsule 5, spiral flow channel 51. Detailed implementation manners

[0032] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0033] As Figures 1 to 11 shown, a fumigation device for treating vaginitis according to the present invention includes a fumigation main body and a fumigation rod 2 connected to the fumigation main body through a conduit 1; the fumigation main body can generate steam with drug components and guide it into the fumigation rod 2 through the conduit 1; one end of the fumigation rod 2 away from the conduit 1 is arc-shaped; the outer wall of the fumigation rod 2 is evenly provided with expansion strips 3 around the central axis; the length direction of the expansion strips 3 is consistent with the axial direction of the fumigation rod 2; the end of the expansion strip 3 extends towards the corresponding end of the fumigation rod 2; steam is discharged from one end of the fumigation rod 2 away from the conduit 1; the length of the fumigation rod 2 is greater than the depth inserted into the vagina; adjacent expansion strips 3 form a return gap 21 in the circumferential direction of the fumigation rod 2; the steam discharged from one end of the fumigation rod 2 discharges towards the outside along the return gap 21.

[0034] As an implementation manner of the present invention, a rod cavity 22 is provided on the inner wall of the fumigation rod 2; an expansion groove 23 is provided through the inner wall of the rod cavity 22 and the outer wall of the fumigation rod 2; one end of the expansion groove 23 extends towards the arc-shaped end of the fumigation rod 2; the position of the expansion groove 23 corresponds to the position of the expansion strip 3; the expansion strip 3 can slide along the radial direction of the fumigation rod 2 and is hermetically connected in the expansion groove 23; one end of the expansion groove 23 can be opened during the outward expansion and sliding process of the expansion strip 3; the outer edge of the expansion strip 3 can adapt to the outer wall of the fumigation rod 2 after retracting into the expansion groove 23.

[0035] As an embodiment of the present invention, the fumigation rod 2 is connected to the catheter 1 through the adapter 4; the catheter 1 is eccentrically connected to the other end of the rod cavity 22 through the first through groove 41 inside the adapter 4; one end of the rod cavity 22 is arranged near the arc-shaped end of the fumigation rod 2; the center position of one end of the rod cavity 22 and the other end is connected through the central capsule 5; the outer wall of the middle section of the central capsule 5 is connected to the inner edge of the expansion strip 3; a second through groove 42 is arranged inside the adapter 4; the shape of the second through groove 42 is cylindrical shape; the central axis of the second through groove 42 is parallel to the central axis of the fumigation rod 2; the adapter 4 is provided with a threaded hole 43 on the side away from the fumigation rod 2; the threaded hole 43 is threadedly connected to a screw rod 44; the second through groove 42 is movably sealed and connected to a piston 45; the center of the piston 45 is fixedly connected to the screw rod 44; the piston 45 divides the second through groove 42 into a near capsule cavity 421 and a far capsule cavity 422; the far capsule cavity 422 is connected to the outside; the near capsule cavity 421 is connected to the inside of the central capsule 5.

[0036] As an embodiment of the present invention, the wall thickness of the central capsule 5 decreases as it approaches the middle section; the middle section of the central capsule 5 expands first compared to the end section during the filling process of the internal medium.

[0037] As an embodiment of the present invention, the central capsule 5 is in a spiral twist shape after expansion; the outer surface of the central capsule 5 forms a spiral flow channel 51 after the central capsule 5 is expanded.

[0038] As an embodiment of the present invention, the expansion strip 3 is composed of a base strip 31 and two expansion strips 32; the middle section of the base strip 31 is connected to the middle section of the central capsule 5; the side of the base strip 31 facing away from the central capsule 5 is fixedly connected to the two expansion strips 32; the outer edges of the two expansion strips 32 adapt to the outer wall of the fumigation rod 2 after the expansion strip 3 retracts into the expansion groove 23; the two expansion strips 32 have elastic force, and after the expansion strip 3 extends out of the expansion groove 23, the outer edges of the two expansion strips 32 can bend away from each other under the action of their own elastic force.

[0039] As an embodiment of the present invention, the two expansion strips 32 on the same base strip 31 have a pressure relief gap 33 during the process of retracting the expansion groove 23; the gas in the vagina can be discharged along the pressure relief gap 33 during the insertion of the fumigation rod 2.

[0040] As an embodiment of the present invention, the expansion slot 23 is provided with an arc chamfer 24 at the opening away from the central capsule 5 ; the two expansion strips 32 are in an outward expansion state at the inner side of the opening of the expansion slot 23 .

[0041] The specific workflow is as follows:

[0042] Before medical staff use the fumigation device to fumigate a patient's vagina, they need to connect the disinfected fumigation rod 2 and the adapter 4 to the catheter 1, and connect the other end of the catheter 1 to the fumigation main body. Then, move the assembled fumigation device to the vicinity of the patient with vaginitis. Subsequently, put the medicine or herbs into the feeding box inside the fumigation main body. The feeding box contains water and can be heated by the heating component. Then, while holding the adapter 4, insert the arc-shaped end of the fumigation rod 2 into the vagina along the vaginal orifice. Due to the constricting nature of the vagina, the inner wall of the vagina contacts the outer wall of the fumigation rod 2. The gas inside the vagina will be discharged along the pressure relief gap 33 during the insertion of the fumigation rod 2, enabling the gas inside the vagina to complete pressure relief smoothly, reducing the resistance to inserting the fumigation rod 2 into the vagina, and allowing the fumigation rod 2 to smoothly enter the vagina. The length of the fumigation rod 2 is greater than the depth of insertion into the vagina. Additionally, the expansion strip 3 retracts into the expansion groove 23 during the insertion of one end of the fumigation rod 2 into the vagina. Therefore, the expansion strip 3 does not contact the inner wall of the vagina during the insertion of the fumigation rod 2, avoiding damage to the inner wall of the vagina and enabling one end of the fumigation rod 2 to smoothly insert into the vagina;

[0043] Then the medical staff twists the screw rod 44, and the handle at the end of the screw rod 44 away from the piston 45 makes it easier to twist the screw rod 44. After being twisted, the screw rod 44 will rotate in the threaded hole 43. The positive rotation of the screw rod 44 will drive the piston 45 to rotate in the second through groove 42 and move closer to the fumigation rod 2, so that the space of the near capsule cavity 421 becomes smaller and the space of the far capsule cavity 422 becomes larger. The far capsule cavity 422 is connected with the external gas, so that the piston 45 can move smoothly along the second through groove 42, and the space in the near capsule cavity 421 becomes larger. The medium is squeezed by the piston 45 and enters the center capsule 5. The thickness of the center capsule 5 decreases as it approaches the middle section, so that the middle section of the center capsule 5 expands first. After expansion, the middle section of the center capsule 5 will squeeze the inner edge of the expansion strip 3 first. The middle section of the center capsule 5 begins to expand, making the force on both ends of the expansion strip 3 more uniform. In this way, the expansion strip 3 will move along its respective expansion groove 23 when squeezed. After the expansion of the center capsule 5, it will be in the shape of a spiral twist, so that the spiral flow channel 51 on the surface of the center capsule 5 prepares for the subsequent flow of steam. After the expansion strip 3 is squeezed by the center capsule 5, it will expand toward the outside, so that the outer edge of the expansion strip 3 extends out of the corresponding expansion groove 23. Since the expansion strip 3 is composed of a single base strip 31 and two expansion strips 32, the base strip 31 will drive the two expansion strips 32 to move toward the outside of the expansion groove 23 during the squeezing process of the center capsule 5. Before the two expansion strips 32 move out of the expansion groove 23, the outer notch of the expansion groove 23 is provided with an arc chamfer 24, so that the expansion strip 32 is at the inner side of the outer notch of the expansion groove 23. In the outward expansion state, as the base strip 31 pushes, the two expansion strips 32 will expand again in the opposite direction during the process of extending from the outer notch of the expansion slot 23. The two expansion strips 32 extending from the expansion slot 23 form a reflux gap 21 with the outer wall of the fumigation rod 2 after bending, so that on the one hand, the gap between the outer wall of the fumigation rod 2 and the inner wall of the vagina is stretched open, and on the other hand, the outer edge of the expansion strip 32 under bending reduces the damage to the inner wall of the vagina; one end of the expansion slot 23 close to the arc-shaped end of the fumigation rod 2 opens as the expansion strip 3 moves radially outward;

[0044] Next, the start controller controls the fumigation main body to work. The fumigation main body heats the medicine or herbal medicine and water in the feeding box together, so that the effective components in the medicine or herbal medicine enter the conduit 1 along with the heated water vapor, and enter the first through groove 41 along the conduit 1, and enter the other end of the rod cavity 22 along the first through groove 41. The steam will flow along the rod cavity 22. Since the spiral flow channel 51 is formed on the surface of the central bladder 5 after expansion, the gap between the outer wall of the central bladder 5 and the inner wall of the rod cavity 22 is increased. In this way, the steam can flow along the spiral flow channel 51 and the gap between the outer wall of the central bladder 5 and the rod cavity 22, so that the steam can move smoothly to one end of the rod cavity 22 and finally be discharged along one end of the expansion groove 23. One end of the expansion groove 23 is arranged at the arc-shaped end of the fumigation rod 2. Therefore, the steam discharged from one end of the expansion groove 23 fills the deepest position of the vagina. Since the return gap 21 is formed between the outer wall of the fumigation rod 2 and the expansion strip 32 extending out of the expansion groove 23, the steam discharged from one end of the expansion groove 23 will flow towards the outside of the vagina along the return gap 21. The steam in the return gap 21 will contact the inner wall of the vagina during the flow process, so that the inner wall of the vagina is fumigated by the effective components in the steam, ensuring the fumigation effect. The outer edges of the two expansion strips 32 expand away from each other, so that the expansion strip 32 that bends and extends out of the expansion groove 23 reduces the damage to the inner wall of the vagina caused by pushing. During the process that the two expansion strips 32 on the adjacent base strips 31 approach and bend towards each other, the return gap 21 is further opened, so that the return gap 21 can be further expanded, and the steam discharged from the arc-shaped end of the fumigation rod 2 can be discharged to the outside of the vagina more smoothly and stably along the return gap 21; after the expansion strip 3 extends out of the expansion groove 23, the fumigation rod 2 can also be supported in the vagina, realizing the fixation of the fumigation rod 2, avoiding the fumigation rod 2 slipping out of the vagina during the fumigation process, and improving the fumigation stability of the fumigation rod 2 in the vagina. The effective components in the steam sterilize and anti-inflammatory the vagina, achieving the purpose of treating vaginitis;

[0045] After the fumigation of the inner side of the vagina is completed, the fumigation body is stopped, so that the fumigation body stops generating steam, and then the screw rod 44 is turned in the opposite direction, and the screw rod 44 drives the piston 45 away from the fumigation rod 2, so that the space of the far capsule cavity 422 becomes larger, and the space of the near capsule cavity 421 becomes smaller, so that the medium inside the central capsule 5 is drawn into the near capsule cavity 421, so that the central capsule 5 is shrunk, and the middle part of the central capsule 5 is shrunk during the shrinking process, which pulls the base strip 31 toward the central axis of the rod cavity 22, so that the base strip 31 drives the corresponding connected expansion strip 31 to move in the pulling process. The strip 32 moves toward the inside of the expansion groove 23, so that the expansion strip 32 retracts to the inside of the expansion groove 23 as the base strip 31 moves, thereby releasing the fixation of the fumigation rod 2 and stretching the vagina. In addition, after the expansion strip 3 retracts to the expansion groove 23, the expansion groove 23 is blocked, and one end of the expansion groove 23 is also closed. After the steam is closed, it cannot be discharged from the arc-shaped end of the fumigation rod 2. Then, the medical staff directly pulls the fumigation rod 2 out of the vagina while holding the adapter 4, and replaces and disinfects the fumigation rod 2 and the adapter 4 to complete the fumigation treatment process of the vagina.

[0046] The present invention uses the expansion strip 3 to expand the space between the inner wall of the vagina and the outer wall of the fumigation rod 2 to form a reflux gap 21, so that the steam filled from one arc-shaped end of the fumigation rod 2 can be discharged along the reflux gap 21 to achieve replacement, and the steam with medicinal ingredients can smoothly contact the inner wall of the vagina to achieve a better vaginal fumigation effect.

[0047] The present invention avoids the damage to the vagina caused by the expansion strip 3 during the insertion of the fumigation rod 2 into the vagina by retracting the expansion strip 3 into the expansion groove 23. In addition, after the fumigation rod 2 is inserted into the vagina, the expansion strip 3 extends from the expansion groove 23 to expand the gap between the outer wall of the fumigation rod 2 and the inner wall of the vagina, which is convenient for fumigation. The expanded expansion strip 3 also makes the fumigation rod 2 stuck in the vagina, which avoids the fumigation rod 2 from moving out of the vagina during the fumigation process, thereby improving the fumigation stability.

[0048] The present invention arranges the expanded central capsule 5 into a spiral twist shape, so that a spiral flow channel 51 is formed on the outer wall of the central capsule 5, thereby satisfying the requirement of pushing the expansion strip out of the expansion groove 23 on the one hand, and on the other hand, the gap between the outer wall of the central capsule 5 and the inner wall of the rod cavity 22 is enlarged, thereby increasing the flow rate of steam between the outer wall of the central capsule 5 and the inner wall of the rod cavity 22, thereby improving the fumigation effect.

[0049] The present invention has two expansion strips 32 that bend in the divergent direction when extending out of the expansion slot 23, thereby reducing damage to the vaginal inner wall and expanding the gap between the vaginal inner wall and the outer wall of the fumigation rod 2, further improving the fumigation effect.

[0050] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the appended Figure 1 drawing, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the protection scope of the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A fumigation device for treating vaginitis, comprising a fumigation body and a fumigation rod (2) connected to the fumigation body through a conduit (1); the fumigation body can generate steam with drug components and guide the steam into the fumigation rod (2) through the conduit (1); the characteristics are: The end of the fumigation rod (2) away from the catheter (1) is arranged in an arc shape; the outer wall of the fumigation rod (2) is evenly provided with expansion strips (3) around the central axis; the length direction of the expansion strips (3) is consistent with the axial direction of the fumigation rod (2); the end of the expansion strip (3) extends toward the corresponding end of the fumigation rod (2); the end of the fumigation rod (2) away from the catheter (1) discharges steam; the length of the fumigation rod (2) is greater than the depth of insertion into the vagina; adjacent expansion strips (3) form a reflux gap (21) in the circumferential direction of the fumigation rod (2); the steam discharged from one end of the fumigation rod (2) is discharged toward the outside along the reflux gap (21).

2. A fumigation device for treating vaginitis according to claim 1, characterized in that: The inner wall of the fumigation rod (2) is provided with a rod cavity (22); the inner wall of the rod cavity (22) and the outer wall of the fumigation rod (2) are penetrated by an expansion groove (23); the position of the expansion groove (23) corresponds to the position of the expansion strip (3); the expansion strip (3) can be radially slidably connected to the expansion groove (23) along the fumigation rod (2); the outer edge of the expansion strip (3) can be adapted to the outer wall of the fumigation rod (2) after being retracted into the expansion groove (23).

3. A fumigation device for treating vaginitis according to claim 2, characterized in that: One end of the expansion groove (23) extends toward the arc-shaped end of the fumigation rod (2); and one end of the expansion groove (23) can be opened during the process of the expansion strip (3) expanding and sliding outward.

4. A fumigation device for treating vaginitis according to claim 2, characterized in that: The fumigation rod (2) is connected to the catheter (1) through the adapter (4); the catheter (1) is eccentrically connected to the other end of the rod cavity (22) through the first through groove (41) inside the adapter (4); one end of the rod cavity (22) is arranged close to the arc-shaped end of the fumigation rod (2); the center position of one end of the rod cavity (22) and the other end is connected through the central capsule (5); a second through groove (42) is arranged inside the adapter (4); the shape of the second through groove (42) is cylindrical; the central axis of the second through groove (42) is parallel to the central axis of the fumigation rod (2); the piston (45) is movably sealed inside the second through groove (42); the piston (45) divides the second through groove (42) into a near capsule cavity (421) and a far capsule cavity (422); the far capsule cavity (422) is connected to the outside; the near capsule cavity (421) is connected to the inside of the central capsule (5).

5. A fumigation device for treating vaginitis according to claim 4, characterized in that: The outer wall of the middle section of the central capsule (5) is connected to the inner edge of the expansion strip (3); a threaded hole (43) is provided on the side of the adapter (4) away from the fumigation rod (2); the inner thread of the threaded hole (43) is connected to the screw rod (44); and the center of the piston (45) is fixedly connected to the screw rod (44).

6. A fumigation device for treating vaginitis according to claim 4, characterized in that: The wall thickness of the central capsule (5) decreases as it approaches the middle section; and the central capsule (5) expands first at the middle section compared to the end section during the process of filling the internal medium.

7. A fumigation device for treating vaginitis according to claim 4, characterized in that: The central capsule (5) is in a spiral twist shape after expansion; and the outer surface of the central capsule (5) forms a spiral flow channel (51) after the central capsule (5) is expanded.

8. A fumigation device for treating vaginitis according to claim 4, characterized in that: The expansion strip (3) is composed of a base strip (31) and two expansion strips (32); the middle section of the base strip (31) is connected to the middle section of the central capsule (5); the side of the base strip (31) facing away from the central capsule (5) is fixedly connected to the two expansion strips (32); the outer edges of the two expansion strips (32) are adapted to the outer wall of the fumigation rod (2) after the expansion strip (3) is retracted into the expansion groove (23); the two expansion strips (32) have elastic force, and after the expansion strip (3) extends out of the expansion groove (23), the outer edges of the two expansion strips (32) can be bent away from each other under the action of their own elastic force.

9. A fumigation device for treating vaginitis according to claim 8, characterized in that: The two expansion strips (32) on the same base strip (31) have a pressure relief gap (33) when the expansion groove (23) is retracted; the gas in the vagina can be discharged along the pressure relief gap (33) when the fumigation stick (2) is inserted.

10. A fumigation device for treating vaginitis according to claim 8, characterized in that: The expansion groove (23) is provided with an arc chamfer (24) at an opening away from the central capsule (5); the two expansion strips (32) are in an outward expansion state at the inner side of the opening of the expansion groove (23).

Images