Anti-adhesion uterine cavity support

Abstract

The invention relates to an anti-adhesion uterine cavity support, belongs to the technical field of uterine cavity supports, and provides an anti-adhesion uterine cavity support in order to solve the problems that the size of an existing uterine cavity support cannot be adjusted, pain is caused to a patient when the existing uterine cavity support is used, and a wound in a uterine cavity cannot be wiped and cleaned due to the fact that a wiping device is not arranged. Comprising a balloon, a connecting rod, a multidirectional supporting frame and a wiping device, the balloon and the connecting rod are communicated with each other, the multidirectional supporting frame is arranged in the balloon and the connecting rod, so that the balloon is small in size when placed into the body of a patient, and after placed into the body of the patient, the balloon is expanded to prevent intrauterine adhesion; therefore, wounds on the wall of the uterine cavity are wiped and cleaned, and inflammation and adhesion are further reduced.

Description

Technical Field

[0001] This invention belongs to the field of intrauterine stent technology, and specifically relates to an anti-adhesion intrauterine stent. Background Technology

[0002] Intrauterine adhesions are a pathological phenomenon caused by partial or complete adhesion of the uterine lining after damage. These adhesions can occur after procedures such as induced abortion, medical abortion followed by curettage, mid-term induced labor or curettage after full-term delivery, diagnostic curettage of the non-pregnant uterus, myomectomy, submucosal myomectomy, and hysteroscopic endometrial resection. They often lead to menstrual abnormalities such as oligomenorrhea or amenorrhea. Patients are prone to miscarriage, premature birth, ectopic pregnancy, intrauterine fetal death, placenta accreta, placental adhesion, and even infertility or hematometra. Currently, the treatment of intrauterine adhesions generally involves four stages: ① Surgical treatment: standard hysteroscopic surgery in an operating room; ② Prevention of recurrent intrauterine adhesions: placement of intrauterine devices, intrauterine balloons, intrauterine spherical stents, sodium hyaluronate for adhesion prevention, etc.; ③ Endometrial regeneration therapy: hormone therapy, stem cell therapy, etc.; ④ Postoperative reassessment of treatment effectiveness: repeat hysteroscopic surgery, hysteroscopy, and ultrasound evaluation of treatment effectiveness. Hysteroscopic surgery is the most common method for treating intrauterine adhesions. However, severe intrauterine adhesions are highly prone to recurrence after surgery. To address the issue of recurrence after surgery for moderate to severe intrauterine adhesions, it is necessary to place an intrauterine device (IUD) in conjunction with sodium hyaluronate, estrogen, a balloon catheter, and amniocentesis to prevent recurrence. Over many years of clinical practice, various shapes of intrauterine stents have been developed, including round, T-shaped, and uterine-shaped. Among these, the uterine-shaped stent has received more clinical attention due to its contour more closely resembling the shape of the uterine cavity and its better effect in preventing intrauterine adhesions.

[0003] A uterine cavity stent, disclosed in CN108186089A, includes a uterine-shaped ring whose upper end can extend into the uterine cavity and is shaped to conform to the inner wall of the uterine cavity. The lower end of the uterine-shaped ring is provided with a connecting ring shaped to the periphery of the lower segment of the uterus. In use, the uterine-shaped ring passes through the cervix and reaches the uterine cavity, fitting snugly against the periphery of the uterine wall, providing excellent support for the uterine cavity.

[0004] However, the above-mentioned intrauterine stents still have the following problems during use: (1) The volume of the above-mentioned uterine ring is fixed and cannot be adjusted. When using it, it needs to be inserted into the patient's uterine cavity, which results in the ring being too large and causing pain to the patient.

[0005] (2) The lack of a wiping device makes it impossible to effectively clean the wounds in the uterine cavity, which is not conducive to reducing the occurrence of inflammation and adhesions.

[0006] Therefore, there is an urgent need to design an anti-adhesion intrauterine stent to solve the above problems. Summary of the Invention

[0007] To address the problems of existing intrauterine stents, such as their inability to adjust volume, causing pain to patients during use, and the lack of a wiping device to clean wounds within the uterine cavity, this invention provides an anti-adhesion intrauterine stent. This stent includes an interconnected balloon and connecting rod, a multi-directional support frame, and a wiping device. The multi-directional support frame is housed within the balloon and connecting rod, ensuring that the balloon is small when inserted into the patient's body and expands after insertion to prevent intrauterine adhesions. The wiping device can adjust its size according to the balloon's volume, thereby cleaning wounds on the uterine cavity wall and further reducing inflammation and adhesions.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An anti-adhesion intrauterine stent includes a balloon and connecting rods that are interconnected, and further includes: A multi-directional support frame is installed inside the balloon and connected to the connecting rod. The connecting rod allows the multi-directional support frame to unfold and change from supporting in one direction to supporting in multiple directions, thereby adjusting the inflation volume of the balloon. The wiping device is inserted into the balloon, enters the connecting rod from the balloon, and is fitted onto the connecting rod for wiping intrauterine wounds.

[0009] Preferably, the connecting rod has a double-layer structure, comprising: Connecting rod one, the upper end of which is connected to the multi-directional support frame, is used to drive the multi-directional support frame to extend and retract; Connecting rod two is sleeved on the outside of connecting rod one and connected to the balloon; A limiting mechanism is installed between connecting rod one and connecting rod two to limit the upward movement of connecting rod two relative to connecting rod one.

[0010] Preferably, the limiting mechanism includes: The toothed plate is installed on the inner wall of the second connecting rod. The positioning component is mounted on the first connecting rod and is used in conjunction with the toothed plate. The drive component is located at one end of the connecting rod and the other end is connected to the positioning component, and is used to drive the positioning component to extend and retract.

[0011] Preferably, the positioning component includes: Telescopic component one is embedded in the outer wall of connecting rod one and is connected to the drive assembly; A limiting element is located at one end of the telescopic component and is used to insert into the toothed plate.

[0012] Preferably, the multi-directional support frame includes: Two sets of horizontal support rods are set on both sides of connecting rod one and connected to connecting rod one and connecting rod two respectively; The rotating support rod assembly is positioned between the two horizontal support rod assemblies. It uses the horizontal support rod assemblies to drive the rotating support rod assemblies to rotate relative to each other, and works in conjunction with the horizontal support rod assemblies to support the balloon from four directions.

[0013] Preferably, the rotating support rod assembly includes: Two folding rod sets; The rotating rod is connected to one end of the folding rod assembly on each side; The rotating assembly is connected to the other end of the folding rod assembly and to the end of the horizontal support rod assembly.

[0014] Preferably, the rotating assembly includes: The rotating housing is rotatably connected at one end to the end of the horizontal support rod assembly; The drive unit is rotatably connected to the other end of the rotating housing; The drive component is located inside the rotating housing. One end of it is connected to the extrusion ball located at the end of the horizontal support rod assembly, and the other end is connected to the drive seat to drive the drive seat to rotate.

[0015] Preferably, the driving component includes: The second telescopic component is located inside the rotating housing and is connected to the extrusion ball; The drive rod assembly has one end connected to the telescopic end of the telescopic component two, and the other end connected to the drive seat; Elastic element one is located at the lower end of the drive rod assembly and is used to reset the drive rod assembly.

[0016] Preferably, the wiping device includes: Several wiping cotton components are inserted inside the balloon; The rotating box is mounted on the second connecting rod and connected to the wiping cotton assembly; The driving component is sleeved on the lower end of the connecting rod and connected to the wiping cotton assembly via a pull rope, and is used to drive the wiping cotton assembly to rotate; The reset mechanism, located inside the rotating box and rotatably connected to several wiping cotton assemblies, is used to reset the pull cord.

[0017] Preferably, the balloon has a double-layer structure, and a release port is provided on the outer layer of the balloon. The release port cooperates with the multi-directional support frame to release drugs.

[0018] The beneficial effects of this invention are: This invention discloses an anti-adhesion intrauterine stent, and compared with the prior art, the improvement of this invention lies in: (1) The present invention designs a multi-directional support frame, which is placed inside the balloon and connected to the connecting rod. When in use, the multi-directional support frame can be driven to expand and retract through the connecting rod, so that when the support of the present invention is inserted, it is in its smallest volume state, which is convenient to be inserted into the patient's body and reduces the patient's pain during insertion. After being inserted into the body, it can be expanded to the maximum volume of the balloon to avoid intrauterine adhesion.

[0019] (2) The multi-directional support frame designed in this invention consists of a horizontal support rod group and a rotating support rod group. By coordinating with the balloon ratio during the deployment of the horizontal support rod group, the rotating support rod group can be driven to rotate relative to the horizontal support rod group, thereby supporting the balloon from multiple directions and ensuring the stability of the balloon after support.

[0020] (3) The present invention has designed a wiping device that can wipe and clean wounds on the inner wall of the cervix, thereby reducing the occurrence of inflammation and adhesions. After wiping, the wiping device can be put into the balloon to avoid it from being in constant contact with the inner wall of the cervix. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the bracket of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the bracket of the present invention. Figure 2 ; Figure 3 A cross-sectional view of the bracket of the present invention. Figure 1 ; Figure 4 This is a cross-sectional view of the connecting rod of the present invention; Figure 5 This is an enlarged view of part A of the present invention; Figure 6 Cross-section of the balloon of the present invention Figure 1 ; Figure 7 This is a schematic diagram of the multi-directional support frame structure of the present invention; Figure 8 This is a top view of the multi-directional support frame of the present invention; Figure 9 This is an enlarged view of part B of the present invention; Figure 10 This is a cross-sectional view of the rotating component of the present invention; Figure 11 This is a schematic diagram of the drive seat structure of the present invention; Figure 12 Cross-section of the balloon of the present invention Figure 2 ; Figure 13 Cross-section of the balloon of the present invention Figure 3 ; Figure 14 This is an enlarged view of part C of the present invention; The components include: 1. Balloon; 101. Release port; 2. Connecting rod; 201. Connecting rod one; 2011. Connecting column; 202. Connecting rod two; 203. Limiting mechanism; 2031. Toothed plate; 2032. Positioning assembly; 2032A. Telescopic component one; 2032B. Limiting component; 2033. Drive assembly; 3. Horizontal support rod assembly; 301. Support rod; 3011. Arc-shaped support body; 3012. Synchronous telescopic rod; 4. Rotation Support rod assembly; 401, folding rod assembly; 402, rotating rod; 403, rotating assembly; 4031, housing; 4032, drive seat; 4032A, drive end; 4033, telescopic component two; 4034, drive rod assembly; 4035, elastic component one; 4036, squeeze ball; 5, wiping cotton assembly; 501, rotating box; 6, drive component; 7, reset mechanism; 701, movable plate; 702, elastic component two; 703, connecting rod. Detailed Implementation

[0022] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] When describing positional relationships, unless otherwise specified, when an element, such as a layer, film, or substrate, is referred to as being "on" another element, it may be directly on the other element or there may be intermediate elements present. Furthermore, when a layer is referred to as being "below" another layer, it may be directly below it or there may be one or more intermediate elements present. It is also understood that when a layer is referred to as being "between" two layers, it may be the only layer between the two layers, or there may be one or more intermediate elements present.

[0025] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0026] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this application, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0027] It should also be understood that, in interpreting an element, although not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of a particular value as determined by a person skilled in the art. For example, "approximately," "about," or "substantially" can mean within one or more standard deviations, without limitation herein.

[0028] Furthermore, in the instruction manual, the phrase "planar distribution diagram" refers to the diagram when the target part is viewed from above, and the phrase "cross-sectional diagram" refers to the diagram when the target part is viewed from the side as a cross-section taken by vertically cutting the target part.

[0029] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the components are shown in the drawings only as examples and not necessarily to actual scale.

[0030] Example 1: See attached document Figures 1-11 The illustrated anti-adhesion intrauterine stent includes a balloon 1 and a connecting rod 2 that are interconnected, as well as a multi-directional support frame. The balloon 1 is made of silicone rubber, and the connecting rod 2 has a rubber layer on its outer side, which is made of the same material as the balloon 1.

[0031] A multi-directional support frame is installed inside the balloon 1 and connected to the connecting rod 2. By manually operating the connecting rod 2, the multi-directional support frame can be unfolded and changed from supporting in one direction to supporting in multiple directions, thereby adjusting the expansion volume of the balloon 1. In the initial state, the multi-directional support frame is in a retracted state, which facilitates the insertion of the stent into the patient's body and reduces the patient's pain during insertion. After being inserted into the patient's body, the multi-directional support frame can be unfolded, thereby expanding the balloon 1 in multiple directions to ensure its expansion stability. In this way, the expanded balloon can expand the uterus and prevent adhesions.

[0032] The balloon 1 has a diameter of about 1.5cm before inflation and a diameter of 5-6cm after inflation. The connecting rod 2 has a length of about 12-15cm.

[0033] In the embodiments of this application, reference is made to the appendix. Figures 3-4As shown, the opening of the multi-directional support frame is controlled by the connecting rod 2. Therefore, in this embodiment, the connecting rod 2 is set as a double-layer structure, specifically including connecting rod one 201, connecting rod two 202 and limiting mechanism 203. The multi-directional support frame is driven to open and close by the connecting rod one 201 moving up and down relative to the connecting rod two 202. The limiting mechanism 203 is used to position the relative position of connecting rod one 201 within the connecting rod two 202, thereby realizing the positioning of the multi-directional support frame in the open and closed state.

[0034] Specifically, connecting rod 201 is a columnar structure, with its upper end rotatably connected to the multi-directional support frame. When moving downhill, it can drive the multi-directional support frame to open and close. A connecting column 2011 is also fixedly installed at the upper end of connecting rod 201.

[0035] The second connecting rod 202 is a hollow columnar structure, sleeved on the outside of the first connecting rod 201, and a silicone layer is fixedly installed on the outside of the second connecting rod 202, with its upper end fixedly connected to the balloon 1.

[0036] The limiting mechanism 203 is disposed between connecting rod one 201 and connecting rod two 202, and is used to limit the upward movement of connecting rod two 202 relative to connecting rod one 201.

[0037] Further, refer to the appendix. Figures 4-5 As shown, the limiting mechanism 203 includes a toothed plate 2031, a positioning component 2032, and a driving component 2033; the driving component 2033 can drive the positioning component 2032 to extend and retract, so that it can be inserted into two adjacent teeth on the toothed plate 2031, thereby achieving positioning.

[0038] The toothed plate 2031 is fixedly installed on the inner wall of the connecting rod 202; the positioning component 2032 is embedded on the outer wall of the connecting rod 201 and can be extended and retracted to cooperate with the toothed plate 2031.

[0039] The positioning component 2032 is a telescopic structure, including a telescopic member 2032A and a limiting member 2032B. The telescopic member 2032A is embedded in the outer wall of the connecting rod 201 and communicates with the driving component 2033. The limiting member 2032B is a triangular structure, located at the end of the telescopic member 2032A, and is adapted to the gap between two adjacent teeth on the toothed plate 2031 for insertion into the toothed plate 2031.

[0040] The specific structure of the telescopic component 2032A includes a sealed connecting rod and a sleeve. By injecting gas into the sleeve, the gas pressure can cause the rod to move outward relative to the sleeve, thereby achieving the purpose of telescopic movement.

[0041] One end of the drive assembly 2033 is located at the end of the connecting rod 201, and the other end is connected to the positioning assembly 2032 for driving the positioning assembly 2032 to extend and retract. The drive assembly 2033 includes an inflation component and an air supply pipe. The inflation component is inserted into the lower end of the connecting rod 201, and the air supply pipe is embedded in the connecting rod 201. One end of the air supply pipe is connected to the inflation component, and the other end is connected to the insert. The inflation component has the same structure as a syringe. By squeezing the piston, air can be injected into the air supply pipe. The gas eventually enters the insert and pushes the insert rod to extend, thereby driving the triangular piece to insert into the gap between two adjacent teeth on the toothed plate 2031, thereby limiting the position of the connecting rod 201 within the connecting rod 202.

[0042] In the embodiments of this application, refer to the appendix. Figure 6 As shown, the multi-directional support frame includes two sets of horizontal support rods 3 and a rotating support rod set 4. The two sets of horizontal support rods 3 are symmetrically and rotatably arranged on both sides of the connecting rod 1 201, and are rotatably connected to the connecting rod 1 201 and the connecting rod 2 202.

[0043] The rotating support rod assembly 4 is rotatably positioned between the two sets of horizontal support rod assemblies 3. By utilizing the mutual compression between the horizontal support rod assemblies 3 and the balloon 1, the rotating support rod assembly 4 is driven to rotate relative to the support direction of the horizontal support rod assemblies 3. Ultimately, it achieves perpendicular support to the support direction of the horizontal support rod assemblies 3, thereby enabling the rotating support rod assembly 4 to support the balloon 1 from four directions and ensuring the stability after support.

[0044] For details, please refer to the appendix. Figure 6 As shown, the horizontal support rod assembly 3 includes three support rods 301. One end of the first support rod 301 is rotatably connected to the connecting column 2011, one end of the second support rod 301 is rotatably connected to the connecting column 2011, and one end of the third support rod 301 is rotatably connected to the outer wall of the second connecting rod 202. The other ends of the three support rods 301 are rotatably connected together. By moving the first connecting rod 201 upward relative to the second connecting rod 202, the three support rods 301 are driven to rotate, thereby unfolding the three support rods 301 and making them contact the inner wall of the balloon 1, thus expanding the balloon 1.

[0045] An arc-shaped support body 3011 is also provided on the support rod 301 near the balloon 1. The arc-shaped support body 3011 is in contact with the balloon 1 and can support the balloon 1 after the horizontal support rod group 3 is deployed.

[0046] See attached document Figures 7-8 As shown, the rotating support rod assembly 4 includes two folding rod assemblies 401, a rotating rod 402, and a rotating component 403. The folding rod assembly 401 consists of multiple rotatably connected movable rods, one end of which is rotatably connected to the rotating rod 402, and the other end is universally connected to the rotating component 403. Meanwhile, the rotating component 403 is fixedly connected to the end of the horizontal support rod assembly 3.

[0047] When the support rod 301 unfolds and contacts and presses against the inner wall of the balloon 1, it drives the rotating component 403 to work. The rotating component 403 drives the end of the folding rod group 401 to rotate, thereby causing the folding rod group 401 to bend. At the same time, the other end of the folding rod group 401 rotates inside the rotating rod 402, so that the support direction of the folding rod group 401 is perpendicular to the support direction of the horizontal support rod group 3.

[0048] Synchronous telescopic rods 3012 are also provided on both sides of the rotating rod 402. The other end of the synchronous telescopic rod 3012 is rotatably connected to the nearby support rod 301. When the horizontal support rod group 3 is unfolded, it is stretched synchronously to ensure the stability of the horizontal support rod group 3 after unfolding.

[0049] See attached document Figure 9 As shown, the rotating assembly 403 includes a rotating housing 4031, a drive seat 4032, and a drive component. One end of the rotating housing 4031 is universally connected to the end of the horizontal support rod assembly 3. The drive seat 4032 is embedded in the other end of the rotating housing 4031 and is rotatably connected to the rotating housing 4031. The drive component is disposed inside the rotating housing 4031, with one end communicating with the extrusion ball 4036 disposed at the end of the horizontal support rod assembly 3 and the other end connected to the drive seat 4032, for driving the drive seat 4032 to rotate.

[0050] When the horizontal support rod assembly 3 extends or retracts, it cooperates with the inner wall of the balloon 1 to compress the compression ball 4036, causing the gas inside to be squeezed out. The squeezed gas enters the drive component, which drives the drive seat 4032 to rotate, causing the end of the folding rod assembly 401 to rotate.

[0051] See attached document Figures 10-11 As shown, the driving component includes a second telescopic member 4033, a driving rod assembly 4034, and an elastic member 4035. The second telescopic member 4033 is fixedly installed inside the rotating housing 4031 and is connected to the extrusion ball 4036 through an air pipe. After the extrusion ball 4036 is extruded, gas is input into the second telescopic member 4033, thereby realizing the extension and retraction of the second telescopic member 4033.

[0052] The specific structure and working principle of telescopic component 2033 are the same as those of telescopic component 1 2032A, so they will not be described in detail here.

[0053] One end of the drive rod assembly 4034 is fixedly connected to the telescopic end of the telescopic member 4033, and the other end is slidably connected to the drive seat 4032; the elastic member 4035 is fixedly connected to the lower end of the drive rod assembly 4034, and the other end is connected to the bottom of the inner cavity of the rotating housing 4031. The elastic member 4035 is sleeved on the telescopic member 4033 and is used to reset the drive rod assembly 4034.

[0054] The drive rod assembly 4034 includes a connecting plate and two drive columns connected to each other. The two drive columns are located at one end of the connecting plate, and the other end of the connecting plate is connected to the telescopic member 4033 and the elastic member 4035. Both drive columns are slidably connected to one end of the drive seat 4032.

[0055] The elastic element 4035 is a spring or spring sheet. When the telescopic element 4033 extends or retracts, it pushes the drive rod assembly 4034 forward and simultaneously stretches the elastic element 4035.

[0056] One end of the drive seat 4032 is slidably connected to two drive columns in the drive rod assembly 4034, and the other end is hinged to the end of the folding rod assembly 401. The ends of the drive seat 4032 connected to the drive rod assembly 4034 are two inclined and arc-shaped drive ends 4032A. The two drive ends 4032A cooperate with each other to drive the drive seat 4032 to rotate. That is, when the two drive columns move forward and slide in the drive end 4032A, the two drive columns exert a force in the same direction (such as clockwise) on the drive end 4032A at different points, causing the drive seat 4032 to rotate clockwise relative to the rotating housing 4031, thereby causing the end of the folding rod assembly 401 to rotate.

[0057] The principle of using an anti-adhesion intrauterine stent in this preferred embodiment is as follows: In the initial state, the multi-directional support frame is in a retracted state, at which time the balloon 1 is at its smallest volume, and the stent in its smallest volume form can be placed into the patient's uterus.

[0058] After insertion, the balloon 1 is inflated via connecting rod 2 to support the uterus and prevent adhesions. Specifically, connecting rod 1 201 is moved upward relative to connecting rod 202. This upward movement of connecting rod 1 201 causes the horizontal support rod assembly 3 to open relative to connecting rod 2. During the opening process, the horizontal support rod assembly 3 presses against the inner wall of the balloon 1, thereby forcing the gas inside the compression ball 4036 into the telescopic component 2 4033. As the telescopic component 2 4033 extends, it also drives the two drive columns in the drive rod assembly 4034 to move forward. The two drive columns slide within the drive end 4032A, and the two drive columns provide pressure at different points. A force in a uniform direction (such as clockwise) at the drive end 4032A causes the drive seat 4032 to rotate clockwise relative to the rotating housing 4031, thereby causing the end of the folding rod assembly 401 to rotate. The rotation of one end of the folding rod assembly 401 causes the folding rod assembly 401 itself to bend. At the same time, the other end of the folding rod assembly 401 rotates within the rotating rod 402, so that the support direction of the folding rod assembly 401 is perpendicular to the support direction of the horizontal support rod assembly 3, thereby expanding the balloon 1 from four directions.

[0059] Finally, the balloon 1 is positioned in the inflated state. Specifically, by squeezing the inflator in the drive assembly 2033, air is inflated into the sleeve in the telescopic component 2032A, which in turn pushes the insert rod to extend. The insert rod drives the triangular component to insert into the gap between two adjacent teeth on the toothed plate 2031, limiting the position of the connecting rod 201 within the connecting rod 202, thereby achieving the inflated state of the multi-directional support frame and thus the balloon 1.

[0060] Example 2: See attached document Figures 12-14 As shown, based on Example 1, a wiping device is also provided for wiping and cleaning wounds in the uterine cavity, reducing inflammation and adhesions. The wiping device is inserted into the balloon 1, enters the connecting rod 2 from the balloon 1, and is fitted onto the connecting rod 2.

[0061] The wiping device includes several wiping cotton assemblies 5, a rotating box 501, and a driving component 6. The several wiping cotton assemblies 5 are movably inserted into the balloon 1, and the rotating box 501 is fixedly mounted on the connecting rod 202. At the same time, the several wiping cotton assemblies 5 are rotatably connected to the rotating box 501.

[0062] The wiping cotton assembly 5 includes a rotating shaft and a cotton swab, with the cotton swab fixedly sleeved on the rotating shaft.

[0063] The driving component 6 is a ring-shaped structure, sleeved on the connecting rod 201. A pull rope is fixedly connected to the driving component 6. The other end of the pull rope moves through the inner wall of the connecting rod 202 and is fixedly connected to the rotating shaft of the wiping cotton assembly 5. Pulling down the driving component 6 causes the pull rope to move down, and the pull rope causes the wiping cotton assembly 5 to rotate, thereby wiping the inner wall of the uterine cavity.

[0064] In order to reset the wiping cotton assembly 5 so that it can perform reciprocating wiping, a reset mechanism 7 is provided. The reset mechanism 7 includes a movable plate 701 and an elastic element 702. The movable plate 701 is vertically arranged in the rotating box 501 and is rotatably connected to the rotating shaft of the wiping cotton assembly 5 through a connecting rod 703.

[0065] The connection point between the connecting rod 703 and the rotating shaft of the wiping cotton assembly 5 is symmetrical to the connection point between the pull rope and the rotating shaft. For example, if the rotating shaft is circular and the connection point between the pull rope and the rotating shaft is at the ten o'clock position, the connection point between the connecting rod 703 and the rotating shaft is at the four o'clock position.

[0066] When the drive component 6 is pulled down, the pull rope moves downward, causing the wiping cotton assembly 5 to rotate. At the same time, the movable plate 701 moves upward relative to the wiping cotton assembly 5, stretching the elastic element 702. After the drive component 6 is released, the movable plate 701 moves downward under the action of the elastic element 702, causing the wiping cotton assembly 5 to rotate in the opposite direction, thereby resetting the pull rope, allowing the wiping cotton assembly 5 to be rotated by the pull rope again.

[0067] Example 3: See attached document Figure 1 As shown, considering the need to use medication to prevent adhesions in the uterine cavity, this embodiment, based on embodiment 2, sets the balloon 1 as a double-layer structure, and provides a release hole 101 on its outer layer. The release hole 101 cooperates with the multi-directional support frame to release medication.

[0068] The balloon 1 also has an injection port on its outer side. Sodium hyaluronate, heparin, and other medications can be injected into the interlayer of the balloon 1 through this port. The release of these medications within the uterus inhibits the proliferation of fibrous tissue, thereby preventing re-adhesion. After the medication is instilled, the injection port is plugged with the same material as the balloon 1 to prevent leakage as the balloon 1 enlarges.

[0069] When the balloon 1 is in a contracted state, the release port 101 contracts, so the drug in the balloon 1 interlayer is sealed inside the interlayer and will not be released. However, when the multi-directional support frame expands the balloon 1, the release port 101 opens, thereby releasing the drug in the balloon 1 interlayer.

[0070] The process of using the anti-adhesion intrauterine stent of this invention is as follows: First, the stent of the present invention is placed inside the patient's body. In the initial state, the multi-directional support frame is in a folded state, at which point the balloon 1 is at its smallest volume, and the stent in its smallest volume form can be placed into the patient's uterus.

[0071] Secondly, the wounds on the uterine cavity wall are wiped using a wiping device. Specifically, pulling down the drive component 6 causes the pull rope to move downwards, which in turn causes the wiping cotton assembly 5 to rotate. At the same time, the movable plate 701 moves upwards relative to the wiping cotton assembly 5, stretching the elastic element 702. After releasing the drive component 6, the movable plate 701 moves downwards under the action of the elastic element 702, causing the wiping cotton assembly 5 to rotate in the opposite direction, thereby resetting the pull rope, allowing for the next rotation of the wiping cotton assembly 5 by pulling the rope.

[0072] Next, after wiping is completed, the multi-directional support frame is activated to open the balloon 1. Specifically, connecting rod 1 201 is moved upward relative to connecting rod 2 202. The upward movement of connecting rod 1 201 causes the horizontal support rod assembly 3 to open relative to connecting rod 2. During the opening process, the horizontal support rod assembly 3 is squeezed against the inner wall of the balloon 1, thereby squeezing the gas in the compressed ball 4036 into the telescopic component 2 4033. As the telescopic component 2 4033 extends, it also drives the two drive columns in the drive rod assembly 4034 to move forward. The two drive columns move forward and slide within the drive end 4032A. The two drive columns provide pressure at different points. A force in a uniform direction (such as clockwise) at the drive end 4032A causes the drive seat 4032 to rotate clockwise relative to the rotating housing 4031, thereby causing the end of the folding rod assembly 401 to rotate. The rotation of one end of the folding rod assembly 401 causes the folding rod assembly 401 itself to bend. At the same time, the other end of the folding rod assembly 401 rotates within the rotating rod 402, so that the support direction of the folding rod assembly 401 is perpendicular to the support direction of the horizontal support rod assembly 3, thereby expanding the balloon 1 from four directions.

[0073] Meanwhile, during the inflating of balloon 1, the expansion of balloon 1 draws the wiping cotton component 5 into balloon 1.

[0074] The foregoing has shown and described 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 to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A uterine stent for preventing adhesions, comprising a balloon (1) and a connecting rod (2) that are interconnected, characterized in that, Also includes: A multi-directional support frame is set inside the balloon (1) and connected to the connecting rod (2). The multi-directional support frame is unfolded through the connecting rod (2) and changes from one direction to multiple directions of support, thereby adjusting the expansion volume of the balloon (1). The wiping device is inserted into the balloon (1), enters the connecting rod (2) from the balloon (1), and is sleeved on the connecting rod (2) for wiping the intrauterine wound.

2. The anti-adhesion intrauterine stent according to claim 1, characterized in that, The connecting rod (2) has a double-layer structure, including: Connecting rod 1 (201) is connected at its upper end to the multi-directional support frame and is used to drive the multi-directional support frame to extend and retract. Connecting rod 2 (202) is sleeved on the outside of connecting rod 1 (201) and connected to balloon (1); The limiting mechanism (203) is set between the first connecting rod (201) and the second connecting rod (202) to limit the upward movement of the second connecting rod (202) relative to the first connecting rod (201).

3. The anti-adhesion intrauterine stent according to claim 1, characterized in that, The limiting mechanism (203) includes: Toothed plate (2031) is installed on the inner wall of connecting rod two (202); The positioning component (2032) is mounted on the connecting rod (201) and is used in conjunction with the toothed plate (2031); The drive component (2033) has one end located at the end of the connecting rod (201) and the other end connected to the positioning component (2032) for driving the positioning component (2032) to extend and retract.

4. The anti-adhesion intrauterine stent according to claim 3, characterized in that, The positioning component (2032) includes: Telescopic component 1 (2032A) is embedded in the outer wall of connecting rod 1 (201) and is connected to the drive assembly (2033); The limiting member (2032B) is provided at the end of the telescopic member (2032A) and is used to insert into the toothed plate (2031).

5. The anti-adhesion intrauterine stent according to claim 3, characterized in that, The multi-directional support frame includes: Two sets of horizontal support rods (3) are set on both sides of the connecting rod one (201) and are connected to the connecting rod one (201) and the connecting rod two (202) respectively; The rotating support rod group (4) is set between the two horizontal support rod groups (3). The horizontal support rod group (3) drives the rotating support rod group (4) to rotate relative to each other, and cooperates with the horizontal support rod group (3) to support the balloon (1) from four directions.

6. The anti-adhesion intrauterine stent according to claim 5, characterized in that, The rotating support rod assembly (4) includes: Two folding rod assemblies (401); The rotating rod (402) is connected to one end of the folding rod assembly (401) on both sides; The rotating assembly (403) is connected to the other end of the folding rod assembly (401) and is connected to the end of the horizontal support rod assembly (3).

7. The anti-adhesion intrauterine stent according to claim 6, characterized in that, The rotating assembly (403) includes: Rotate the housing (4031), one end of which is rotatably connected to the end of the horizontal support rod assembly (3); The drive base (4032) is rotatably connected to the other end of the rotating housing (4031); The driving component is located inside the rotating housing (4031). One end is connected to the extrusion ball (4036) located at the end of the horizontal support rod group (3), and the other end is connected to the driving seat (4032) for driving the driving seat (4032) to rotate.

8. The anti-adhesion intrauterine stent according to claim 7, characterized in that, The drive components include: The second telescopic component (4033) is disposed inside the rotating housing (4031) and communicates with the extrusion ball (4036); The drive rod assembly (4034) is connected at one end to the telescopic end of the telescopic component two (4033) and at the other end to the drive seat (4032); Elastic element 1 (4035) is disposed at the lower end of the drive rod assembly (4034) and is used to reset the drive rod assembly (4034).

9. A uterine stent for preventing adhesions according to claim 2, characterized in that, The wiping device includes: Several wiping cotton components (5) are inserted into the balloon (1); The rotating box (501) is mounted on the connecting rod two (202) and connected to the wiping cotton assembly (5); The driving component (6) is sleeved on the lower end of the connecting rod (201) and connected to the wiping cotton assembly (5) by a pull rope, and is used to drive the wiping cotton assembly (5) to rotate; The reset mechanism (7) is located inside the rotating box (501) and is rotatably connected to several wiping cotton assemblies (5) for resetting the pull rope.

10. A uterine stent for preventing adhesions according to claim 1, characterized in that, The balloon (1) has a double-layer structure, and a release hole (101) is provided on the outer layer of the balloon (1). The release hole (101) works with the multi-directional support frame to release drugs.

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