Uterine cavity perfusion liquid medicine retention flushing device

Abstract

The invention discloses a uterine cavity perfusion liquid medicine retaining and flushing device, and relates to the technical field of lavage, the uterine cavity perfusion liquid medicine retaining and flushing device comprises a perfusion tube, a moving part, a distance adjusting part and a bag part, under the adjustment of the distance adjusting part and the control of the moving part, the bag part is inflated under the two conditions that the vagina is close to the cervical opening and the cervical canal position, and liquid medicine is prevented from overflowing; and the retention time is controlled by medical personnel according to the condition of the patient.

Description

Technical Field

[0001] This invention relates to the field of irrigation technology, specifically to a device for retaining and rinsing intrauterine irrigation solution. Background Technology

[0002] Intrauterine perfusion is a gynecological treatment performed in a sterile environment. It is widely used in the treatment of gynecological diseases such as chronic endometritis and intrauterine adhesions, and in assisted reproductive technologies such as endometrial preparation before embryo transfer. The procedure involves inserting a specialized catheter through the vaginal canal into the cervix. After the catheter passes through the internal cervical os, therapeutic medication is injected into the uterine cavity in stages. Different types of drugs have significantly different retention times in the intrauterine environment to achieve optimal efficacy; therefore, the appropriate dosing regimen must be tailored to the patient's endometrial condition, pathological characteristics, and drug metabolism. Intrauterine perfusion achieves targeted drug delivery through local mucosal absorption. The medication primarily acts on the surface of the endometrium without entering the systemic bloodstream. Compared to intravenous administration, this reduces the metabolic burden on organs such as the liver and kidneys, and lowers the risk of systemic adverse reactions.

[0003] In summary, the current intrauterine irrigation process has the following technical problems: Although the patient is required to be in the lithotomy position, the traditional irrigation catheter flows out directly after the drug is injected into the uterine cavity due to the intrauterine pressure or the injection operation, making it difficult for the drug to remain and resulting in a short effective drug contact time, which affects the treatment effect; In order to achieve the continuous effect of the drug and counteract the problem of direct drug outflow, continuous injection is usually performed in clinical practice, resulting in drug waste. Summary of the Invention

[0004] To address the aforementioned problems in the existing technology, the present invention provides a device for retaining and flushing intrauterine irrigation solution.

[0005] To achieve the above-mentioned technical objectives and effects, the present invention is implemented through the following technical solution:

[0006] A device for retaining and flushing intrauterine irrigation solution includes an irrigation tube, a moving part, an adjusting part, and a bladder. The irrigation tube is provided with a bladder. The moving part is provided between the bladder and the irrigation tube. The adjusting part is provided between the two ends of the bladder on the irrigation tube. The bladder is provided with an injection valve. The injection valve, the moving part, and the adjusting part cooperate with each other.

[0007] By coordinating the injection valve, the moving part, and the adjusting part, the same drug injection method as existing methods can be achieved at the injection valve. At the same time, the position of the bladder on the irrigation tube can be adjusted by the moving part based on the injection valve, and the distance between the two ends of the irrigation tube can be adjusted by the adjusting part, adapting to two different situations: the position of the bladder near the cervix in the vagina and the position of the cervical canal.

[0008] Furthermore, the capsule includes a capsule assembly, a cannula, a first control tube, and a second control tube. The capsule assembly includes a middle membrane, a pleural membrane, an outer membrane, and an inner membrane. The middle membrane is annular. There are two cannulas. The middle membrane is disposed between the two cannulas. The outer membrane is fixedly connected to both sides of the middle membrane. The end of the outer membrane away from the middle membrane is fixedly connected to the cannula located on the same side as the middle membrane. The outer membrane is located on the cannula at the end away from the middle membrane. The pleural membrane is fixedly connected to the middle membrane. Two inner membranes are fixedly connected to the inner side of the pleural membrane. The end of the inner membrane away from the pleural membrane is fixedly connected to the cannula located on the same side as the pleural membrane. The inner membrane is located on the cannula at the end near the pleural membrane.

[0009] The first control tube and the second control tube are located on both sides of the infusion tube. The first control tube is fixedly connected between the inner wall and the outer wall of the proximal sleeve. The first control tube is fixedly connected to a proximal air port at the middle position of the proximal sleeve. The proximal air port extends out of the outer wall of the proximal sleeve.

[0010] The second control tube is slidably connected between the inner and outer walls of the proximal sleeve, and is fixedly connected between the inner and outer walls of the distal sleeve. A distal air port is fixedly connected to the second control tube at the middle position of the distal sleeve, and the distal air port extends out of the outer wall of the second control tube.

[0011] The first control tube and the second control tube extend toward the pitch adjustment section.

[0012] Furthermore, the adjusting part includes a fixed frame, a connecting cylinder, an upper control rod, and a movable plate. Two fixed frames are provided, and the fixed frames are slidably connected to the infusion tube. The connecting cylinder is fixedly connected to the upper side of the two fixed frames. The first control tube is fixedly connected to the far fixed frame and extends into the connecting cylinder. The second control tube is slidably connected to the two fixed frames. The proximal end of the second control tube has an n-shaped structure. The end of the second control tube away from the bladder extends into the connecting cylinder. The end of the second control tube away from the bladder is slidably connected to the proximal fixed frame. The second control tube has a movement margin in the connecting cylinder and on both sides of the fixed frame.

[0013] A movable plate is fixedly connected to the n-shaped structure position near the second control tube. An upper control rod is provided on the movable plate. The upper control rod is provided with an upper thread. The upper thread is threadedly connected to the movable plate. The upper control rod is rotatably connected to the fixed frame on the near side. An upper limit ring is fixedly connected to the upper control rod at the fixed frame position. The upper limit ring is rotatably connected to the fixed frame.

[0014] Furthermore, the movable part includes a lower plate, a lower control rod, and a fixed plate. The lower plate is fixedly connected to the proximal side of the infusion tube. The lower control rod is rotatably connected to the lower plate. The lower control rod is provided with a lower thread, which is threadedly connected to the fixed frame. The lower control rod is rotatably connected to the lower plate. A lower limit ring is fixedly connected to the lower control rod at the position of the lower plate. The lower limit ring is rotatably connected to the lower plate.

[0015] Furthermore, a connecting block is fixedly connected to the lower side between the two fixing brackets, and the connecting block is threadedly connected to the lower thread;

[0016] This ensures that the two fixing brackets and the lower thread are stably engaged.

[0017] Furthermore, the distal end of the infusion tube is designed with a rounded blunt end, and a first side hole and a second side hole are opened near the distal end of the infusion tube. The distance between the first side hole and the distal end of the infusion tube is within 2 cm, and the axial directions of the first side hole and the second side hole are perpendicular to each other.

[0018] Furthermore, the infusion tube is 15-25cm long, the outer diameter of the infusion tube is 1-2mm, the distance between the first side hole and the distal end of the infusion tube is 0.5cm, the distance between the second side hole and the distal end of the infusion tube is 1-2cm, and the distance between the bladder and the distal end of the infusion tube is 5-12cm.

[0019] Furthermore, an injection valve port is fixedly connected to the connecting cylinder, and the injection valve port adopts the injection interface with pressure indication of an existing endotracheal intubation balloon.

[0020] Furthermore, side plates are fixedly connected to both sides of the fixing frame, and fixing blocks are fixedly connected between the side plates, with the injection valve port protruding from one side plate;

[0021] The internal components are shielded to prevent them from affecting operation.

[0022] Furthermore, an injection core is provided inside the injection tube.

[0023] The beneficial effects of this invention are:

[0024] A device for retaining and flushing intrauterine irrigation solution, which, under the adjustment of the adjustable part and the control of the moving part, inflates the bladder in two situations: near the cervix and in the cervical canal, to prevent the solution from leaking out. The retention time is controlled by medical staff according to the patient's condition.

[0025] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of the intrauterine irrigation solution retention and flushing device according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the structural connection between the injection pipe and the side plate according to an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of the infusion tube, lower control rod, first control tube, and second control tube according to an embodiment of the present invention;

[0030] Figure 4 This is a cross-sectional structural diagram of the connecting block and connecting cylinder according to an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the cross-section of the connecting block and the lower control rod according to an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the cross-section of the connecting cylinder and the structure of the first control tube according to an embodiment of the present invention;

[0033] Figure 7 This is a cross-sectional view of the connecting cylinder and a schematic diagram of the structure of the second control pipe according to an embodiment of the present invention;

[0034] Figure 8 This is a schematic diagram of the structure of the upper control rod and the second control tube according to an embodiment of the present invention;

[0035] Figure 9 This is a schematic diagram of the structure of the fixed frame and movable plate according to an embodiment of the present invention;

[0036] Figure 10 This is a schematic cross-sectional view of the infusion tube, the first control tube, the second control tube, and the outer membrane as described in an embodiment of the present invention.

[0037] Figure 11 This is a partial structural schematic diagram of the cross-section of the infusion tube, the first control tube, the second control tube, and the outer membrane according to an embodiment of the present invention;

[0038] Figure 12 This is a schematic diagram of the structure of the outer membrane, middle membrane, rib membrane, inner membrane, and sleeve as described in an embodiment of the present invention;

[0039] Figure 13 This is a cross-sectional view of the injection pipe and a schematic diagram of the structure of the second control pipe according to an embodiment of the present invention;

[0040] Figure 14 This is a schematic diagram of the cross-section of the injection pipe and the structure of the first control pipe according to an embodiment of the present invention;

[0041] Figure 15 This is a schematic diagram of the structure of the infusion tube according to an embodiment of the present invention;

[0042] Figure 16 This is a schematic diagram of the structure of the injection tube and injection core according to an embodiment of the present invention.

[0043] The attached diagram lists the components represented by each number as follows:

[0044] 1-Injection tube, 101-First side hole, 102-Second side hole, 2-Side plate, 201-Fixing block, 202-Lower plate, 203-Injection valve port, 210-Lower control rod, 211-Lower limit ring, 212-Lower thread, 213-Fixing bracket, 214-Connecting block, 215-Connecting cylinder, 220-First control tube, 221-Distant air port, 230-Second control tube, 231-Moving plate, 232-Upper control rod, 233-Upper thread, 234-Upper limit ring, 235-Proximal air port, 3-Outer membrane, 301-Middle membrane, 302-Flat membrane, 303-Inner membrane, 304-Sheath, 310-Injection core. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] Example 1

[0047] like Figure 1-16 As shown

[0048] The present invention provides a uterine cavity irrigation solution retention and flushing device, comprising an irrigation tube (1), a moving part, an adjusting part, and a bladder. The irrigation tube (1) is provided with a bladder, the bladder is provided between the irrigation tube (1), the bladder is provided between the two ends of the irrigation tube (1), and the bladder is provided with an injection valve (203). The injection valve (203), the moving part, and the adjusting part cooperate with each other.

[0049] By cooperating with the injection valve (203), the moving part and the adjusting part, the same drug injection method as the existing one can be achieved at the injection valve (203). At the same time, the position of the bladder on the irrigation tube (1) can be adjusted by the moving part based on the injection valve (203), and the distance between the two ends of the irrigation tube (1) can be adjusted by the adjusting part, so as to adapt to two different situations: the position of the bladder near the cervix and the position of the cervical canal.

[0050] The capsule includes a capsule assembly, a cannula (304), a first control tube (220), and a second control tube (230). The capsule assembly includes a middle membrane (301), a pleural membrane (302), an outer membrane (3), and an inner membrane (303). The middle membrane (301) is annular. Two cannulas (304) are provided, and the middle membrane (301) is disposed between the two cannulas (304). The outer membrane (3) is fixedly connected to both sides of the middle membrane (301). The end of the outer membrane (3) away from the middle membrane (301) is fixedly connected to a part located in the middle membrane. On the same side of the membrane (301) on the sleeve (304), the outer membrane (3) is located on the sleeve (304) at the end away from the middle membrane (301). The middle membrane (301) is fixedly connected to the middle membrane (302). Two inner membranes (303) are fixedly connected to the inner side of the rib membrane (302). The end of the inner membrane (303) away from the rib membrane (302) is fixedly connected to the sleeve (304) on the same side of the rib membrane (302). The inner membrane (303) is located on the sleeve (304) at the end close to the rib membrane (302).

[0051] The first control tube (220) and the second control tube (230) are located on both sides of the infusion tube (1). The first control tube (220) is fixedly connected between the inner wall and the outer wall of the proximal sleeve (304). The first control tube (220) has a proximal air port (235) fixedly connected in the middle of the proximal sleeve (304). The proximal air port (235) extends out of the outer wall of the proximal sleeve (304).

[0052] The second control tube (230) is slidably connected between the inner wall and the outer wall of the proximal sleeve (304), and the second control tube (230) is fixedly connected between the inner wall and the outer wall of the distal sleeve (304). The second control tube (230) has a distal air port (221) fixedly connected at the middle position of the distal sleeve (304), and the distal air port (221) protrudes through the outer wall of the second control tube (230).

[0053] The first control tube (220) and the second control tube (230) extend toward the adjustment section;

[0054] Example 2

[0055] like Figure 2-16 As shown

[0056] The adjusting unit includes a fixed frame (213), a connecting cylinder (215), an upper control rod (232), and a movable plate (231). Two fixed frames (213) are provided, each slidably connected to the injection pipe (1). Connecting cylinders (215) are fixedly connected to the upper sides of both fixed frames (213). The first control pipe (220) is fixedly connected to the distal fixed frame (213) and extends to the connecting cylinder (231). 15) Inside, the second control tube (230) is slidably connected to two fixed brackets (213). The proximal end of the second control tube (230) has an n-shaped structure. The end of the second control tube (230) away from the sac extends into the connecting tube (215). The end of the second control tube (230) away from the sac is slidably connected to the fixed bracket (213) on the proximal side. The second control tube (230) has a movement margin in the connecting tube (215) and on both sides of the fixed bracket (213).

[0057] A movable plate (231) is fixedly connected to the n-shaped structure position near the second control tube (230). An upper control rod (232) is provided on the movable plate (231). An upper thread (233) is provided on the upper control rod (232). The upper thread (233) is threadedly connected to the movable plate (231). The upper control rod (232) is rotatably connected to the fixed frame (213) on the near side. An upper limit ring (234) is fixedly connected to the upper control rod (232) at the fixed frame (213). The upper limit ring (234) is rotatably connected to the fixed frame (213).

[0058] The movable part includes a lower plate (202), a lower control rod (210), and a fixed plate. The lower plate (202) is fixedly connected to the proximal side of the infusion tube (1). The lower control rod (210) is rotatably connected to the lower plate (202). The lower control rod (210) is provided with a lower thread (212). The lower thread (212) is threadedly connected to the fixed frame (213). The lower control rod (210) is rotatably connected to the lower plate (202). The lower control rod (210) is fixedly connected to a lower limit ring (211) at the position of the lower plate (202). The lower limit ring (211) is rotatably connected to the lower plate (202).

[0059] A connecting block (214) is fixedly connected to the lower side between the two fixing brackets (213), and the connecting block (214) is threadedly connected to the lower thread (212);

[0060] This ensures a stable fit between the two fixing brackets (213) and the lower thread (212);

[0061] The distal end of the infusion tube (1) is designed with a rounded blunt end. The infusion tube (1) has a first side hole (101) and a second side hole (102) near the distal end. The distance between the first side hole (101) and the second side hole (102) and the distal end of the infusion tube (1) is within 2 cm. The axial directions of the first side hole (101) and the second side hole (102) are perpendicular to each other.

[0062] The infusion tube (1) is 15-25cm long and has an outer diameter of 1-2mm. The distance between the first side hole (101) and the distal end of the infusion tube (1) is 0.5cm. The distance between the second side hole (102) and the distal end of the infusion tube (1) is 1-2cm. The distance between the bladder and the distal end of the infusion tube (1) is 5-12cm.

[0063] An injection valve port (203) is fixedly connected to the connecting cylinder (215). The injection valve port (203) adopts the injection interface with pressure indication of the existing endotracheal intubation balloon.

[0064] The fixing frame (213) has side plates (2) fixedly connected on both sides, and a fixing block (201) is fixedly connected between the side plates (2). The injection valve port (203) protrudes through one side plate (2).

[0065] The internal components are shielded to prevent them from affecting operation.

[0066] The injection tube (1) is provided with an injection core (310).

[0067] During operation, rotating the lower control lever allows the fixing frame to move closer to or further away from the lower plate through the threaded connection between the lower thread and the connecting block. The lower plate is fixed in position with the irrigation tube, and the fixing frame pushes the sleeve at the position of the outer membrane on the irrigation tube through the rigid first and second control tubes, thereby changing the overall position of the outer membrane on the irrigation tube. In clinical practice, the control can be adapted to the differences in the uterine cavity of different patients according to the medical staff, so that the position of the outer membrane is in the ideal position of the medical staff after the irrigation tube enters the uterine cavity.

[0068] Based on the required retention time of the infusion fluid, the patient's tolerance, and the judgment of medical staff, the position of the outer membrane is divided into the uterine cavity os and the uterine canal. Finally, the infusion core that supports the infusion tube to prevent bending is pulled out, and the medication is infused through the infusion tube, while the outer membrane prevents liquid leakage.

[0069] The injection valve is connected to the syringe barrel to fill the liquid or gas fluid. The fluid is delivered simultaneously through the first control tube and the second control tube at both ends of the connecting tube and placed at the two outer membrane positions respectively. The outer membrane, the outer membrane, the rib membrane, and the inner membrane form an independent space in the sleeve. The fluid supports the outer membrane and will not cause leakage of the filled fluid in the middle due to the change of the two sleeves.

[0070] When placing irrigation fluid at the cervical os, rotating the upper control lever causes the threaded connection between the upper thread and the movable plate to move the movable plate closer to or away from the fixed frame. This causes the rigid second control tube, partially within the movable plate, to move relative to the fixed frame, while the rigid first control tube remains fixed to the fixed frame. In other words, the second control tube shifts relative to the first control tube. Both the first and second control tubes have sleeves connected to their ends, so these sleeves also move closer to or away from each other due to the rotation of the upper control lever. This movement of the sleeves causes changes in the endometrium. When the endometrium moves closer, the middle membrane in the middle of the outer membrane... The increased distance from the irrigation cannula allows the outer membrane to adapt to the cervical os sealing function, pushing aside the already closed vaginal wall and blocking the cervix. When expansion is needed within the cervical canal, to prevent excessive stretching of the outer membrane from causing discomfort to the patient in the narrow cervical canal, the upper control lever is rotated to move the movable plate away from the fixed frame, and the two cannulas also move away from each other, pulling the inner membrane apart so that the middle membrane is close to the irrigation cannula. The outer membrane becomes spindle-shaped, and the pleura keeps the outer membrane able to stretch. When the irrigation fluid has stayed for a sufficient time, the irrigation cannula is withdrawn, and the fluid is drawn back through the injection valve, causing the outer membrane, middle membrane, and pleura to contract onto the cannula. The irrigation cannula can then be pulled out.

[0071] In summary, the present invention provides a uterine cavity irrigation solution retention and flushing device. Under the adjustment of the adjustable part and the control of the moving part, the bladder is inflated in two situations: near the cervix and at the cervical canal, to prevent the solution from overflowing. The retention time can be controlled by medical staff according to the patient's condition.

[0072] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0073] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A device for retaining and flushing intrauterine irrigation solution, characterized in that: It includes an infusion tube, a moving part, an adjusting part, and a bladder. The infusion tube is provided with a bladder. The moving part is provided between the bladder and the infusion tube. The adjusting part is provided between the two ends of the bladder on the infusion tube. The bladder is provided with an injection valve port. The injection valve port, the moving part, and the adjusting part cooperate with each other.

2. The intrauterine irrigation solution retention and flushing device as described in claim 1, characterized in that: The capsule includes a capsule assembly, a cannula, a first control tube, and a second control tube. The capsule assembly includes a middle membrane, a pleural membrane, an outer membrane, and an inner membrane. The middle membrane is annular. There are two cannulas. The middle membrane is disposed between the two cannulas. The outer membrane is fixedly connected to both sides of the middle membrane. The end of the outer membrane away from the middle membrane is fixedly connected to the cannula located on the same side as the middle membrane. The outer membrane is located on the cannula at the end away from the middle membrane. The pleural membrane is fixedly connected to the middle membrane. Two inner membranes are fixedly connected to the inner side of the pleural membrane. The end of the inner membrane away from the pleural membrane is fixedly connected to the cannula located on the same side as the pleural membrane. The inner membrane is located on the cannula at the end near the pleural membrane. The first control tube and the second control tube are located on both sides of the infusion tube. The first control tube is fixedly connected between the inner wall and the outer wall of the proximal sleeve. The first control tube is fixedly connected to a proximal air port at the middle position of the proximal sleeve. The proximal air port extends out of the outer wall of the proximal sleeve. The second control tube is slidably connected between the inner and outer walls of the proximal sleeve, and is fixedly connected between the inner and outer walls of the distal sleeve. A distal air port is fixedly connected to the second control tube at the middle position of the distal sleeve, and the distal air port extends out of the outer wall of the second control tube. The first control tube and the second control tube extend toward the pitch adjustment section.

3. The intrauterine irrigation solution retention and flushing device as described in claim 2, characterized in that: The adjusting unit includes a fixed frame, a connecting cylinder, an upper control rod, and a movable plate. There are two fixed frames, which are slidably connected to the infusion tube. The connecting cylinder is fixedly connected to the upper side of the two fixed frames. The first control tube is fixedly connected to the far fixed frame and extends into the connecting cylinder. The second control tube is slidably connected to the two fixed frames. The proximal end of the second control tube has an n-shaped structure. The end of the second control tube away from the sac extends into the connecting cylinder. The end of the second control tube away from the sac is slidably connected to the proximal fixed frame. The second control tube has a movement margin in the connecting cylinder and on both sides of the fixed frame. A movable plate is fixedly connected to the n-shaped structure position near the second control tube. An upper control rod is provided on the movable plate. The upper control rod is provided with an upper thread. The upper thread is threadedly connected to the movable plate. The upper control rod is rotatably connected to the fixed frame on the near side. An upper limit ring is fixedly connected to the upper control rod at the fixed frame position. The upper limit ring is rotatably connected to the fixed frame.

4. The intrauterine irrigation solution retention and flushing device as described in claim 3, characterized in that: The movable part includes a lower plate, a lower control rod, and a fixed plate. The lower plate is fixedly connected to the proximal side of the infusion tube. The lower control rod is rotatably connected to the lower plate. The lower control rod is provided with a lower thread. The lower thread is threaded to the fixed frame. The lower control rod is rotatably connected to the lower plate. A lower limit ring is fixedly connected to the lower control rod at the position of the lower plate. The lower limit ring is rotatably connected to the lower plate.

5. The intrauterine irrigation solution retention and flushing device as described in claim 4, characterized in that: A connecting block is fixedly connected to the lower side between the two fixing frames, and the connecting block is threadedly connected to the lower thread.

6. The intrauterine irrigation solution retention and flushing device as described in claim 5, characterized in that: The distal end of the infusion tube is designed with a rounded blunt end. The infusion tube has a first side hole and a second side hole near the distal end. The distance between the first side hole and the distal end of the infusion tube is within 2 cm. The axial directions of the first side hole and the second side hole are perpendicular to each other.

7. The intrauterine irrigation solution retention and flushing device as described in claim 6, characterized in that: The infusion tube is 15-25cm long and has an outer diameter of 1-2mm. The distance between the first side hole and the distal end of the infusion tube is 0.5cm, the distance between the second side hole and the distal end of the infusion tube is 1-2cm, and the distance between the bladder and the distal end of the infusion tube is 5-12cm.

8. The intrauterine irrigation solution retention and flushing device as described in claim 7, characterized in that: An injection valve port is fixedly connected to the connecting cylinder. The injection valve port adopts the injection interface of an existing endotracheal intubation balloon with pressure indication.

9. The intrauterine irrigation solution retention and flushing device as described in claim 8, characterized in that: Side plates are fixedly connected to both sides of the fixed frame, and a fixing block is fixedly connected between the side plates. The injection valve port protrudes through one side plate.

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