A catheter assembly for fallopian tube recanalization treatment

CN122912290APending Publication Date: 2026-10-16HEILONGJIANG UNIV OF CHINESE MEDICINE
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Patent Information

Application Number
CN202410517867.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-04-28
Publication Date
2026-10-16

AI Technical Summary

Technical Problem

1.现有技术中,对于输卵管再通用导管组件,通常只能实现插入子宫单侧输卵管对其进行导通、造影剂等的输入,来实现导通治疗效果,但是对于需要双侧输卵管进行导通治疗时,需要单侧处理完毕后拔出再次向另一侧输卵管进行导通治疗,过程中不仅影响效率同时易造成不适以及内膜损伤问题;

Benefits of technology

本发明的一种用于输卵管再通治疗的导管组件可实现调整可调导管偏转角度,从而便于对输卵管进行检查观测以及导通治疗,在使用时,通过下侧的电控伸缩杆启动,带动线控端块回缩,从而对下侧传动线形成拉扯,使其末端对固线端块形成拉扯,从而逐渐使得可调弹性体由单侧偏转慢慢向另一侧进行偏转,从而可调整可调导管弯曲部分的方向的朝向,从而便于通过造影以及微孔镜头对输卵管进行导通治疗,并便于导通治疗以及造影剂、药剂的精准输入,并在伸入过程中主动进行角度偏转调节,还可实现避免对内膜的压迫及损伤隐患问题;

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Abstract

The present application relates to the technical fields of oviduct recanalization, and discloses a catheter assembly for oviduct recanalization treatment, which comprises a catheter control mechanism and a recanalization function mechanism, the recanalization function mechanism comprises a end cap docking seat, a lead-in extension pipe is fixedly installed in communication on the right side of the end cap docking seat, an elastic rubber pipe is fixedly connected and installed at the end of the lead-in extension pipe, an air bag body for inflation and expansion fixation in the uterine mouth is fixedly installed on the outer wall of the elastic rubber pipe, a docking guide wire groove is arranged in the elastic rubber pipe, the docking guide wire groove is in communication with the lead-in extension pipe, and an adjustable catheter mechanism is fixedly installed at the right side port of the docking guide wire groove; the catheter assembly for oviduct recanalization treatment can realize safe and efficient recanalization treatment of both sides of the oviduct, greatly improves the operation efficiency during treatment, and avoids the hidden troubles of compression and damage to the endometrium.
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Description

Technical Field

[0001] This invention relates to the field of fallopian tube recanalization technology, specifically to a catheter assembly for fallopian tube recanalization treatment. Background Technology

[0002] In recent years, the number of infertile women of childbearing age has been increasing year by year. One of the important factors causing infertility is whether the fallopian tubes are patent. Previous methods such as fallopian tube flushing with medication, laparoscopic surgery, exploratory laparotomy, and in vitro fertilization (IVF) all have certain limitations and drawbacks. However, fallopian tube recanalization, which has gradually gained popularity in recent years, has shown significant effectiveness in the diagnosis and treatment of patients with fallopian tube obstruction-related infertility. Selective salpingography (SSG) and fullopian tube recanalization (FTR) are performed under imaging guidance, providing clear localization. This method is simple to operate, causes minimal patient trauma, and is inexpensive. Direct injection of medication into the fallopian tubes increases the local drug concentration and enhances the anti-inflammatory effect. SSG and recanalization help identify the cause of fallopian tube obstruction (fallopian tube spasm, membranous adhesions, mucus plug obstruction, or fibrous adhesions) and can restore patency to some fallopian tubes obstructed by membranous adhesions or mucus plug obstruction, thus avoiding invasive surgery.

[0003] However, existing technologies for fallopian tube recanalization treatment still have the following drawbacks: 1. In the existing technology, the fallopian tube recanalization catheter assembly can usually only be inserted into one fallopian tube of the uterus to conduct the recanalization and introduce contrast agents to achieve the recanalization treatment effect. However, when bilateral fallopian tube recanalization treatment is required, it is necessary to remove the catheter after one side is treated and then conduct the recanalization treatment into the other fallopian tube. This process not only affects efficiency but also easily causes discomfort and endometrial damage. 2. In the existing technology, the catheter assembly for fallopian tube patency treatment cannot achieve the effect of adjusting the deflection of the catheter tip. It can only achieve natural deflection during insertion to carry out the patency operation. In actual use, human differences lead to the possibility of affecting the accuracy of the direction and damaging the endometrium. Summary of the Invention

[0004] The purpose of this invention is to provide a catheter assembly for fallopian tube recanalization treatment, which overcomes the above-mentioned defects in the prior art.

[0005] The present invention is achieved through the following technical solution.

[0006] This invention discloses a catheter assembly for fallopian tube recanalization treatment, comprising a catheter adjustment mechanism and a patency function mechanism. The patency function mechanism includes an end cap docking seat, with an insertion extension tube fixedly installed on the right side of the end cap docking seat. An elastic tubing is fixedly connected to the end of the insertion extension tube, and an air balloon for inflation and fixation to the cervical os is fixedly installed on the outer wall of the elastic tubing. A guidewire groove is provided inside the elastic tubing, communicating with the insertion extension tube. An adjustable catheter mechanism is fixedly installed at the right end of the guidewire groove on the elastic tubing. The adjustable catheter mechanism includes a telescopic mechanism. The telescopic tube has one end fixedly installed at the right port of the guide wire groove, and the other end fixedly installed with an adjustable guide tube. The adjustable guide tube consists of a straight section and a bent section. An adjustable bending groove is provided on the lower inner wall of the junction of the straight section and the adjustable guide tube. An adjustable elastic body is embedded and fixedly installed in the adjustable bending groove. A deflection flap is embedded and fixedly installed on the bottom outer wall of the adjustable elastic body. A wire-fixing end block is provided on the bottom outer wall of the deflection flap. The deflection flap can be deflected by the bending section due to the deformation caused by the wire being pulled by the wire through the wire-fixing end block.

[0007] A further technical solution is provided with a matching bending groove on the upper inner wall at the junction of the straight pipe section and the adjustable conduit. A bending elastic body is embedded and fixedly installed in the matching bending groove. The bending elastic body and the adjustable elastic body have an upward bending arc in the initial state, which can keep the adjustable conduit in an upward deflection state.

[0008] In a further technical solution, the adjustable elastomer has an adjustment insert groove on its rear wall, and the deflection flap is fixedly installed in the adjustment insert groove. The bottom inner wall of the deflection flap has a deflection groove, and the fixed end block is fixedly installed at the end of the deflection groove.

[0009] A further technical solution is provided in the end cap docking seat, the right end of the docking guide groove is fixedly connected to the inlet extension tube, the inner wall of the inlet extension tube is symmetrically provided with wiring hole grooves on the upper and lower sides, the rear inner wall of the inlet extension tube is provided with a docking air groove, and the front inner wall of the inlet extension tube is provided with a docking line groove.

[0010] A further technical solution is provided in which the inner wall of the elastic tube is provided with a mating air groove, the rear side of the mating air groove is provided with a connecting port and is connected to the docking air groove, and the inner wall of the elastic tube is provided with mating wiring grooves symmetrically arranged on the upper and lower sides, and the left end of the mating wiring groove is connected to the wiring hole groove.

[0011] A further technical solution is provided, wherein telescopic end rings are fixedly installed on both sides of the telescopic tube body, and an installation end cap is provided on the left side end of the telescopic end ring on the left side. The installation end cap is fixedly installed on the right side mating end face of the elastic hose. The telescopic tube body is an elastic telescopic tube body. A telescopic pull wire groove is provided on the upper inner wall of the telescopic tube body, and a deflection pull wire groove is provided on the lower inner wall of the telescopic tube body. The telescopic pull wire groove is connected to the upper mating wire routing groove, and the deflection pull wire groove is connected to the lower mating wire routing groove.

[0012] A further technical solution is provided, wherein a fixed end ring is fixedly installed at the left port of the adjustable conduit, the fixed end ring is connected to the telescopic end ring on the right side, an adjustment groove is provided on the inner wall of the adjustable bending groove, a connecting groove is provided at the bottom of the adjustment insert groove, one end of the connecting groove is connected to the deflection groove, the other end of the connecting groove is connected to the adjustment groove, a limiting ring is arrayed on the inner wall of the deflection groove, and the left end of the adjustment groove is connected to the deflection pull groove.

[0013] A further technical solution includes a catheter control mechanism comprising a function controller, a head on the right side of the function controller, a guidewire groove on the inner wall of the function controller, a rear port on the left side of the function controller, one end of the guidewire groove being located at the rear port, the other end of the guidewire groove being located at the right side of the head, the end of the guidewire groove being connected to the docking guide groove, a module embedding groove on the inner wall of the function controller, a main control module being embedded and fixedly installed in the module embedding groove, a function slot on the outer wall of the function controller, a control panel being installed on the main control module, and the control panel being embedded in the function slot.

[0014] A further technical solution includes symmetrically arranged wire control grooves on the upper and lower sides of the inner wall of the function controller. An electrically controlled telescopic rod is fixedly installed within each wire control groove. A wire control end block is installed at the end of the telescopic section of the electrically controlled telescopic rod, and a transmission line is connected to the wire control end block. A wiring channel is provided in connection with the wire control grooves. End wire holes are symmetrically arranged on the upper and lower sides of the inner wall of the end head. The wiring channel communicates with the end wire holes. A docking end cover is fixedly installed on the left side of the end cover docking seat. The docking end cover is fixedly installed on the right end face of the end head. The wiring holes... The left end of the groove is connected to the end wire hole. The upper transmission line passes through the wiring groove, end wire hole, connecting guide groove, wiring hole groove, mating wiring groove, and telescopic pull wire groove in sequence. The end of the upper transmission line is fixedly connected to the inner wall of the telescopic end ring on the right side. The lower transmission line passes through the wiring groove, end wire hole, connecting guide groove, wiring hole groove, mating wiring groove, deflection pull wire groove, adjusting wire groove, connecting wire groove, and deflection wire groove in sequence. The end of the lower transmission line is fixedly connected to the fixed wire end block.

[0015] A further technical solution includes a micropump groove on the inner wall of the function controller, in which a control micropump is embedded and fixedly installed. The micropump groove is connected to a micropump air groove. An end pressure hole is provided on the right end face of the end head, which is connected to the micropump air groove. The other end of the end pressure hole is connected to the docking air groove. A micro-aperture lens is connected and installed on the main control module. An end wiring groove is provided on the inner wall of the end head. Matching wiring grooves are provided on the inner walls of the telescopic tube and the straight tube section. The power cable of the micro-aperture lens passes sequentially through the end wiring groove, the docking conductive groove, the docking wiring groove, the front wiring groove on the inner wall of the elastic tube, and the matching wiring groove. The micro-aperture lens is fixedly installed on the outer wall of the bent section.

[0016] The beneficial effects of this invention are: This invention provides a catheter assembly for fallopian tube recanalization treatment that allows for adjustable catheter deflection angles, facilitating fallopian tube examination and recanalization treatment. During use, the lower electrically controlled telescopic rod is activated, causing the wire-controlled end block to retract, thus pulling the lower transmission line and its end against the fixed end block. This gradually causes the adjustable elastomer to deflect from one side to the other, adjusting the direction of the curved portion of the adjustable catheter. This facilitates fallopian tube recanalization treatment via imaging and a micro-lens, and allows for precise delivery of contrast agents and medications. Furthermore, the active angle adjustment during insertion avoids the risk of endometrial compression and damage. This invention provides a catheter assembly for tubal recanalization treatment, enabling safe and efficient bilateral tubal recanalization. Traditionally, when bilateral tubal recanalization is required, the catheter must be removed after treatment on one side and then inserted into the other. This process not only reduces efficiency but also increases the risk of discomfort and endometrial damage. However, this invention allows for retraction via an upper electrically controlled telescopic rod, which pulls the right telescopic end ring along the upper transmission line, causing the telescopic tube to retract. Simultaneously, the lower transmission line pulls and deflects the adjustable catheter, ensuring the bent and straight sections remain aligned. This retraction prevents endometrial scraping during the deflection process. Further deflection of the bent section and repositioning of the telescopic tube allow it to extend into the other fallopian tube for recanalization, significantly improving treatment efficiency and avoiding endometrial compression and damage. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a schematic diagram of the overall structure of the catheter control mechanism 15 of the present invention; Figure 3 This is a cross-sectional view of the catheter control mechanism 15 of the present invention; Figure 4 This is a front view schematic diagram of the conducting function mechanism 20 of the present invention; Figure 5 This is a cross-sectional view of the conducting function mechanism 20 of the present invention; Figure 6 This is a side sectional view of the extension tube 37 of the present invention. Figure 7 This is a front view schematic diagram of the adjustable catheter mechanism 45 of the present invention; Figure 8 This is a cross-sectional view of the telescopic tube body 52 of the present invention; Figure 9 This is a front view schematic diagram of the adjustable catheter 55 of the present invention; Figure 10 This is a schematic diagram of the disassembled state of the adjustable elastomer 62 of the present invention. Detailed Implementation

[0020] The following is combined Figure 1-10 The present invention will be described in detail below. For ease of description, the directions referred to below are defined as follows: the directions of up, down, left, right, front, and back mentioned below are the same as... Figure 1 The directions of the projection relationship are consistent in all directions: up, down, left, right, front, and back.

[0021] A catheter assembly for fallopian tube recanalization treatment, as described in Figures 1-10, includes a catheter adjustment mechanism 15 and a conduction function mechanism 20. The conduction function mechanism 20 includes an end cap docking seat 36, with an insertion extension tube 37 fixedly installed on the right side of the end cap docking seat 36. An elastic tubing 40 is fixedly connected to the end of the insertion extension tube 37. An air balloon 41 for inflation and fixation to the cervical os is fixedly installed on the outer wall of the elastic tubing 40. A guide wire groove 47 is provided inside the elastic tubing 40, which communicates with the insertion extension tube 37. An adjustable catheter mechanism 45 is fixedly installed at the right end of the elastic tubing 40 at the guide wire groove 47. The adjustable catheter mechanism 45 includes a telescopic tube body. 52. One end of the telescopic tube 52 is connected to and fixedly installed at the right port of the guide wire groove 47. The other end of the telescopic tube 52 is connected to and fixedly installed with an adjustable guide tube 55. The adjustable guide tube 55 consists of two parts: a straight section 53 and a bent section 54. An adjustable bending groove 61 is provided on the lower inner wall of the junction of the straight section 53 and the adjustable guide tube 55. An adjustable elastic body 62 is embedded and fixedly installed in the adjustable bending groove 61. A deflection flap 65 is embedded and fixedly installed on the bottom outer wall of the adjustable elastic body 62. A wire-fixing end block 67 is provided on the bottom outer wall of the deflection flap 65. The deflection flap 65 can be deflected by the bending section 54 by the deformation caused by the pulling of the wire through the wire-fixing end block 67.

[0022] Preferably, the upper inner wall at the junction of the straight pipe section 53 and the adjustable conduit 55 is provided with a matching bending groove 59, and a bending elastic body 60 is embedded and fixedly installed in the matching bending groove 59. The bending elastic body 60 and the adjustable elastic body 62 have an upward bending arc in the initial state, which can keep the adjustable conduit 55 in an upward deflection state.

[0023] Preferably, the adjustable elastomer 62 has an adjustment insert groove 64 on its rear wall, a deflection fold 65 is fixedly installed in the adjustment insert groove 64, the bottom inner wall of the deflection fold 65 has a deflection groove 66, and the wire fixing block 67 is fixedly installed at the end of the deflection groove 66.

[0024] Preferably, the end cap mating seat 36 is provided with a mating guide groove 38, and the right end of the mating guide groove 38 is fixedly connected to an inlet extension tube 37. The inner wall of the inlet extension tube 37 is provided with symmetrical wiring hole grooves 39 on the upper and lower sides. The rear inner wall of the inlet extension tube 37 is provided with a mating air groove 43, and the front inner wall of the inlet extension tube 37 is provided with a mating line groove 42.

[0025] Preferably, the inner wall of the elastic tube 40 is provided with a mating air groove 49, and the rear side of the mating air groove 49 is provided with a connecting port and connected to the docking air groove 43. The inner wall of the elastic tube 40 is provided with mating wiring grooves 48 symmetrically arranged on the upper and lower sides, and the left side end of the mating wiring groove 48 is connected to the wiring hole groove 39.

[0026] Preferably, telescopic end rings 51 are fixedly installed on both sides of the telescopic tube body 52. ​​The left end of the telescopic end ring 51 on the left side is provided with an installation end cap 50. The installation end cap 50 is fixedly installed on the right mating end face of the elastic hose 40. The telescopic tube body 52 is an elastic telescopic tube body. The upper inner wall of the telescopic tube body 52 is provided with a telescopic pull wire groove 56, and the lower inner wall of the telescopic tube body 52 is provided with a deflection pull wire groove 57. The telescopic pull wire groove 56 is connected to the upper mating wire groove 48, and the deflection pull wire groove 57 is connected to the lower mating wire groove 48.

[0027] Preferably, a fixed end ring 58 is fixedly installed at the left port of the adjustable conduit 55, and the fixed end ring 58 is connected to the telescopic end ring 51 on the right side. An adjusting groove 63 is provided on the inner wall of the adjustable bending groove 61, and a connecting groove 69 is provided at the bottom of the adjusting insert groove 64. One end of the connecting groove 69 is connected to the deflection groove 66, and the other end of the connecting groove 69 is connected to the adjusting groove 63. A limiting ring 68 is arrayed on the inner wall of the deflection groove 66, and the left end of the adjusting groove 63 is connected to the deflection pull groove 57.

[0028] Preferably, the catheter control mechanism 15 includes a function controller 11, a head 14 on the right side of the function controller 11, a guidewire groove 21 on the inner wall of the function controller 11, a rear port 23 on the left side of the function controller 11, one end of the guidewire groove 21 is located at the rear port 23, the other end of the guidewire groove 21 is located at the right side of the head 14, and the end of the guidewire groove 21 is connected to the docking guide groove 38. The inner wall of the function controller 11 is provided with a module embedding groove 25, in which a main control module 26 is embedded and fixedly installed. The outer wall of the function controller 11 is provided with a function groove 12, in which a control panel 13 is installed on the main control module 26 and is embedded in the function groove 12.

[0029] Preferably, the inner wall of the function controller 11 is symmetrically provided with wire control grooves 30, and an electric telescopic rod 31 is fixedly installed in the wire control grooves 30. A wire control end block 32 is installed at the end of the telescopic section of the electric telescopic rod 31. The wire control end block 32 is connected to the transmission line 71. The wire control grooves 30 are connected to a wiring groove 33. The inner wall of the end head 14 is symmetrically provided with end wire holes 17, and the wiring groove 33 is connected to the end wire holes 17. The left end of the end cover mating seat 36 is connected to and fixedly installed with a mating end cover 35. The mating end cover 35 is fixedly installed on the right end face of the end head 14. The left end of the wiring groove 39 is connected to the end wire. Hole 17 is connected to the connector. The upper transmission line 71 passes through the wiring groove 33, end wire hole 17, connecting guide groove 38, wiring hole groove 39, mating wiring groove 48, and telescopic pull wire groove 56 in sequence. The end of the upper transmission line 71 is fixedly connected to the inner wall of the telescopic end ring 51 on the right side. The lower transmission line 71 passes through the wiring groove 33, end wire hole 17, connecting guide groove 38, wiring hole groove 39, mating wiring groove 48, deflection pull wire groove 57, adjusting wire groove 63, connecting wire groove 69, and deflection wire groove 66 in sequence. The end of the lower transmission line 71 is fixedly connected to the fixed wire end block 67.

[0030] Preferably, the inner wall of the function controller 11 is provided with a micro-pump groove 27, and a control micro-pump 28 is embedded and fixedly installed in the micro-pump groove 27. The micro-pump groove 27 is connected to a micro-pump air groove 29. The right end face of the end head 14 is provided with an end air pressure hole 18, which is connected to the micro-pump air groove 29. The other end of the end air pressure hole 18 is connected to the docking air groove 43. The main control module 26 is connected to and installed with a micro-aperture lens 46. The inner wall of the end head 14 is provided with an end wiring groove 19. The inner walls of the telescopic tube 52 and the straight tube section 53 are provided with mating wiring grooves 44. The power line of the micro-aperture lens 46 passes through the end wiring groove 19, the docking conductive groove 38, the docking wiring groove 42, the front wiring groove on the inner wall of the elastic tube 40, and the mating wiring groove 44 in sequence. The micro-aperture lens 46 is fixedly installed on the outer wall of the bent section 54.

[0031] Specific usage of this invention: In use, the fallopian tube recanalization microguidewire is passed through the posterior port 23, guidewire groove 21, insertion extension tube 37, connecting guidewire groove 47, telescopic tube body 52, and adjustable catheter 55, with its end positioned close to the port of the adjustable catheter 55. The guiding function mechanism 20 is gently pushed into the uterine cavity. By controlling the micropump 28 to start, air is gently inflated into the balloon body 41, fixing the balloon body 41 to the inner opening of the uterine cavity. After removing the microguidewire, contrast agent is injected through the posterior port 23 using a syringe to visualize the fallopian tube morphology. Once a lesion is identified, the air is removed. Gas was aspirated and repositioned from the cyst 41, and the fallopian tube was dilated in two stages. A super-slippery guidewire was inserted, which first sprang into the proximal end of the fallopian tube and then followed into the interstitial part of the contrast catheter. The super-slippery guidewire was then withdrawn and replaced with a microguidewire. The microguidewire was gently slid back and forth in the fallopian tube several times before being withdrawn. The fallopian tube contrast was then injected through the patency mechanism 20. If both sides were blocked, the direction of the contrast catheter tip was adjusted to insert the cannula on the opposite side. Then, a mixture of dexamethasone, gentamicin, chymotrypsin, and water for injection (approximately 15 ml) was injected into the catheter control mechanism and tinidazole patency mechanism 20 ml. The present invention provides a catheter assembly for fallopian tube recanalization treatment that allows for adjustment of the deflection angle of the adjustable catheter 55, thereby facilitating fallopian tube examination and observation as well as recanalization treatment. In use, the lower electrically controlled telescopic rod 31 is activated, driving the wire-controlled end block 32 to retract, thereby pulling the lower transmission line 71, causing its end to pull against the fixed end block 67. This gradually causes the adjustable elastic body 62 to deflect from one side to the other, thus adjusting the orientation of the curved portion of the adjustable catheter 55. This facilitates fallopian tube recanalization treatment via angiography and a micro-lens 46, and also facilitates the precise delivery of contrast agents and medications. Furthermore, the active angle adjustment during insertion avoids the risk of endometrial compression and damage. This invention provides a catheter assembly for tubal recanalization treatment, enabling safe and efficient bilateral tubal recanalization. Traditionally, when bilateral tubal recanalization is required, the assembly must be removed after treatment on one side and then moved to the other. This process not only affects efficiency but also increases the risk of discomfort and endometrial damage. However, this invention allows for retraction via the upper electrically controlled telescopic rod 31, which in turn pulls the right telescopic end ring 51 via the upper transmission line 71. This retraction of the telescopic tube 52, along with the lower transmission line 71 pulling and deflecting the adjustable catheter 55, keeps the bent section 54 parallel to the straight section 53. This prevents endometrial scraping during the retraction of the telescopic tube 52. Further deflection of the bent section 54 and the repositioning and extension of the telescopic tube 52 allow it to extend into the other fallopian tube for recanalization, significantly improving treatment efficiency and avoiding endometrial compression and damage.

[0032] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand and implement the present invention. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A catheter assembly for fallopian tube recanalization treatment, comprising a catheter adjustment mechanism and a patency function mechanism, characterized in that: The guiding function mechanism includes an end cap docking seat. An inlet extension tube is fixedly installed on the right side of the end cap docking seat. An elastic tubing is fixedly connected to the end of the inlet extension tube. An airbag for inflation and fixation at the cervical os is fixedly installed on the outer wall of the elastic tubing. A guide wire groove is provided inside the elastic tubing, communicating with the inlet extension tube. An adjustable catheter mechanism is fixedly installed at the right end of the guide wire groove on the elastic tubing. The adjustable catheter mechanism includes a telescopic tube body, one end of which is fixedly connected to... The other end of the telescopic tube is connected to and fixedly installed with an adjustable conduit, which consists of a straight section and a bent section. An adjustable bending groove is provided on the lower inner wall of the junction of the straight section and the adjustable conduit. An adjustable elastic body is embedded and fixedly installed in the adjustable bending groove. A deflection flap is embedded and fixedly installed on the bottom outer wall of the adjustable elastic body. A wire-fixing end block is provided on the bottom outer wall of the deflection flap. The deflection flap can be deflected by the bending section due to the deformation caused by the wire being pulled by the wire through the wire-fixing end block.

2. The catheter assembly for fallopian tube recanalization treatment according to claim 1, characterized in that: The upper inner wall at the junction of the straight pipe section and the adjustable conduit is provided with a matching bending groove. A bending elastic body is embedded and fixedly installed in the matching bending groove. The bending elastic body and the adjustable elastic body have an upward bending arc in the initial state, which can keep the adjustable conduit in an upward deflection state.

3. The catheter assembly for fallopian tube recanalization treatment according to claim 1, characterized in that: The adjustable elastomer has an adjustment groove on its rear wall, and the deflection plate is fixedly installed in the adjustment groove. The bottom inner wall of the deflection plate has a deflection groove, and the fixed end block is fixedly installed at the end of the deflection groove.

4. A catheter assembly for fallopian tube recanalization treatment according to claim 3, characterized in that: The end cap docking seat is provided with a docking guide groove. The right end of the docking guide groove is fixedly connected to the inlet extension tube. The inner wall of the inlet extension tube is provided with symmetrical wiring hole grooves on the upper and lower sides. The inner wall of the rear side of the inlet extension tube is provided with a docking air groove. The inner wall of the front side of the inlet extension tube is provided with a docking line groove.

5. A catheter assembly for fallopian tube recanalization treatment according to claim 4, characterized in that: The inner wall of the elastic tube is provided with a mating air groove, and the rear side of the mating air groove is provided with a connecting port and connected to the docking air groove. The inner wall of the elastic tube is provided with mating wiring grooves symmetrically arranged on the upper and lower sides, and the left end of the mating wiring groove is connected to the wiring hole groove.

6. A catheter assembly for fallopian tube recanalization treatment according to claim 5, characterized in that: Telescopic end rings are fixedly installed on both sides of the telescopic tube body. The left end of the telescopic end ring on the left side is provided with an installation end cap. The installation end cap is fixedly installed on the right docking end face of the elastic hose. The telescopic tube body is an elastic telescopic tube body. The upper inner wall of the telescopic tube body is provided with a telescopic pull wire groove. The lower inner wall of the telescopic tube body is provided with a deflection pull wire groove. The telescopic pull wire groove is connected to the upper mating wire routing groove. The deflection pull wire groove is connected to the lower mating wire routing groove.

7. A catheter assembly for fallopian tube recanalization treatment according to claim 6, characterized in that: The adjustable conduit has a fixed end ring fixedly installed at its left port, which is connected to the telescopic end ring on the right side. The adjustable bending groove has an adjusting groove on its inner wall, and the adjusting insert groove has a connecting groove at its bottom. One end of the connecting groove is connected to the deflection groove, and the other end of the connecting groove is connected to the adjusting groove. The deflection groove has a limiting ring array on its inner wall, and the left end of the adjusting groove is connected to the deflection pull groove.

8. A catheter assembly for fallopian tube recanalization treatment according to claim 7, characterized in that: The catheter control mechanism includes a function controller. The function controller has a head on its right side and a guidewire groove on its inner wall. The function controller has a rear port on its left side. One end of the guidewire groove is located at the rear port, and the other end of the guidewire groove is located at the right side of the head. The end of the guidewire groove is connected to the docking guide groove. The function controller has a module embedding groove on its inner wall, in which a main control module is embedded and fixedly installed. The function controller has a function slot on its outer wall, in which a control panel is installed on the main control module. The control panel is embedded in the function slot.

9. A catheter assembly for fallopian tube recanalization treatment according to claim 8, characterized in that: The function controller has symmetrically arranged wire control grooves on its inner wall. An electrically controlled telescopic rod is fixedly installed within each wire control groove. A wire control end block is installed at the end of the telescopic section of the electrically controlled telescopic rod, and a transmission wire is connected to the end block. A wiring channel is provided in connection with the wire control grooves. End wire holes are symmetrically arranged on the inner wall of the end head, and the wiring channel communicates with the end wire holes. A docking end cover is fixedly installed on the left side of the end cover docking seat, and the docking end cover is fixedly installed on the right end face of the end head. The wiring hole groove is located on the left side of the end... The upper transmission line connects to the end wire hole, passing sequentially through the wiring groove, end wire hole, connecting guide groove, wiring hole groove, mating wiring groove, and telescopic pull wire groove. The end of the upper transmission line is fixedly connected to the inner wall of the telescopic end ring on the right side. The lower transmission line passes sequentially through the wiring groove, end wire hole, connecting guide groove, wiring hole groove, mating wiring groove, deflection pull wire groove, adjusting wire groove, connecting wire groove, and deflection wire groove. The end of the lower transmission line is fixedly connected to the fixed wire end block.

10. A catheter assembly for fallopian tube recanalization treatment according to claim 9, characterized in that: The inner wall of the function controller is provided with a micro-pump groove, in which a control micro-pump is embedded and fixedly installed. The micro-pump groove is connected to a micro-pump air groove. The right end face of the end head is provided with an end pressure hole, which is connected to the micro-pump air groove. The other end of the end pressure hole is connected to the docking air groove. The main control module is connected to and installed with a micro-aperture lens. The inner wall of the end head is provided with an end wiring groove. The inner walls of the telescopic tube and the straight tube section are provided with mating wiring grooves. The power cable of the micro-aperture lens passes sequentially through the end wiring groove, the docking conductive groove, the docking wiring groove, the front wiring groove on the inner wall of the elastic tube, and the mating wiring groove. The micro-aperture lens is fixedly installed on the outer wall of the bent section.