CN221060967U - Oviduct support assembly used in oviduct recanalization operation - Google Patents

Abstract

The utility model discloses a fallopian tube bracket component used in fallopian tube recanalization operation, which is convenient for an operator to perform the operation of anastomotic suturing of the fallopian tube, can be remained for supporting after the operation for a short time and can prevent the adhesion after the fallopian tube recanalization operation. The technical scheme is characterized by comprising a bracket, a guide wire and a storage structure, wherein the bracket comprises a bracket body made of a ductile material, a first operation end and a second operation end, the first operation end and the second operation end are both of conical structures with arc-shaped ends, and the placement path of the bracket body is guided so as to realize the smooth placement of the bracket body and avoid the problem of difficult placement of the original guide wire; the guide wire is arranged in the frame body and is made of plastic metal, so that the stability of operation in the processes of stent placement and oviduct suturing can be improved, and the guide wire can be pulled out from the stent after the operation is finished; the storage structure is used for winding the frame body to shorten the grippable length of the bracket, so that the operation flexibility of winding and unwinding the bracket is increased, and pollution caused by slipping of the bracket beyond the sterile range is avoided.

Description

Oviduct support assembly used in oviduct recanalization operation

Technical Field

The utility model relates to the medical field, in particular to a fallopian tube bracket component used in fallopian tube recanalization operation.

Background

The oviduct is an important female reproductive organ and mainly plays key roles in picking up eggs, providing fertilized sites, conveying fertilized eggs and the like in the process of conception. Therefore, for the patients with infertility after the oviduct sterilization and the infertility caused by the oviduct obstruction, natural conception opportunities are generally needed through the oviduct recanalization operation, wherein the end-to-end anastomosis of the oviduct and the recovery of the wound after the anastomosis operation are key to the success of the oviduct recanalization operation.

Besides the need of skilled suturing skill and proper suture, the surgical operation also needs to guide and fix the oviduct by means of tools to ensure the quality and efficiency of the anastomosis of the oviduct. Clinically, zebra guide wires, loach guide wires or some catheters with smaller tube diameters are used for guiding suturing of fallopian tube recanalization.

However, since these guidewires/catheters are not specifically designed for fallopian tube recanalization procedures, there are some drawbacks to the procedure:

1. Because the guide wires of the zebra guide wires and the loach guide wires cannot be automatically cut and adjusted, and the guide wires lack flexible guide wire storage and operation devices, the whole guide wire is long and is not easy to operate in use, and because the guide wires lack of the limiting device, the operation of placing the guide wires into the oviduct is difficult and easy to slip, and the operation time is prolonged.

2. Because the lumen is likely to be adhered again after the end-to-end anastomosis of the fallopian tube, the guide wire needs to be withdrawn after the suturing of the fallopian tube is finished, and cannot stay in the fallopian tube for supporting, so that the success rate of recanalization is affected to a certain extent.

At present, the Chinese patent with the publication number of CN113017948A discloses a oviduct support, and the patent proposes a technical scheme which comprises an elastic hollow tube body, wherein the elastic hollow tube body comprises a straight tube section, a first winding section arranged at the head end of the straight tube section and a second winding section arranged at the tail end of the straight tube section.

Although the patent can play a role in supporting and draining the oviduct, the postoperative adhesion and obstruction are reduced, and the success rate of the operation is improved. However, since both ends of the guide wire can be curled naturally, the operation of placing the guide wire into the lumen is difficult when the guide wire is applied to the fallopian tube recanalization operation, and the operation time and the failure rate are increased.

Disclosure of utility model

The utility model aims to provide a fallopian tube bracket component used in fallopian tube recanalization operation, which is convenient for an operator to perform the operation of anastomotic suturing of the fallopian tube, can be remained for a short time after the operation to support, and prevents adhesion after the fallopian tube recanalization operation.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The utility model provides a oviduct support subassembly that uses in oviduct recanalization operation, includes support, seal wire and storage structure, the support includes support body, first operation end and second operation end are the toper structure of arc end, and first operation end and second operation end adopt ductile material to make, and the seal wire is located the support body inside, the support is put into the in-process, and storage structure rolling support body is in order to shorten the length that the support can be held.

Compared with the prior art, the oviduct bracket component used in the oviduct recanalization operation adopting the technical scheme has the following beneficial effects:

1. By adopting the oviduct support assembly used in the oviduct recanalization operation, the placement path of the support body is guided through the first operation end or the second operation end of the ductile material, so that the smooth placement of the support body is realized, the oviduct is effectively supported through the support body, and the postoperative lumen adhesion is prevented; in the process of implantation, the arc-shaped end head and the hydrophilic layer on the surface of the bracket can effectively relieve the friction force between the bracket and the inner wall of the oviduct; in addition, the first operation end or the second operation end can be selected and used for operation independently according to different operation routes, and the device has the characteristics of multi-scene use and flexible operation.

2. In the implantation process of the support, the controllable length of the support is adjusted through the storage structure, the overall operability of the support is improved, the problem that the conventional guide wire is difficult to be implanted in a longer way is effectively avoided, the working efficiency of medical staff and the success rate of operation are further effectively improved, and the time required by the operation is shortened.

3. The oviduct bracket component is mainly used for preventing adhesion after oviduct recanalization operation and is a gynecological instrument, but the bracket component can be applied to support and drug infusion of other natural human body channels (such as narrow channels of lacrimal gland, vas deferens and the like, and can be used for properly adjusting parameters of the bracket component for adaptation) such as rectum, urethra, nasal cavity and the like besides being used for recanalization of oviduct and drug infusion.

Preferably, the storage structure comprises a storage bin, a lumen for the bracket to be placed in is arranged in the storage bin, a section of notch is formed in the storage bin, and two ends of the notch are lumen openings for the first operation end and the second operation end to pass through respectively. Through accomodating the support in the storage bin, realize the regulation to the controllable length of support.

Preferably, the stowage bins share two relatively independent lumens. Through setting up a plurality of lumen, realize the increase to the support ring number of circles, make the whole device size after the rolling be suitable for the operator and hold.

Preferably, the storage structure further comprises a limiting component used for limiting the support to move in the winding ring, the limiting component comprises a buckling seat and a movable plate, the buckling seat is fixedly arranged at the notch, the movable plate is rotationally connected with the buckling seat, a pressing block is arranged on the movable plate, a buckle is arranged on the movable plate, and a clamping hole which is matched with the buckle is formed in the buckling seat. Through the operation mode of upset and cover, break away from the buckle or put into the card hole, realize release or fixed of fly leaf and knot seat, and then realize the release or the oppression of briquetting to the support body, under the oppression state, can avoid excessively pulling the support tip and lead to the support body to stretch out too much problem.

Preferably, the pressing block is made of elastic materials, and a limiting hole for placing the bracket is formed in the pressing block. The frame body is stably fixed in the limiting hole by utilizing the expansion and contraction characteristics of the elastic material, and excessive compression can not be caused to the frame body.

Preferably, the device also comprises a docking seat for connecting the bracket, wherein a docking channel for placing the bracket body is arranged in the docking seat, the first operation end/the second operation end can be separated from the bracket body after being separated by scissors (in the actual operation process, the first operation end is positioned in the uterine cavity and is better to cut out because the uterine cavity is a natural cavity of a human body, and the first operation end is basically cut out), and the guide wire is extracted from the inside of the bracket body; the end part of the frame body after the guide wire is drawn out of the bracket can be connected with the butt joint seat, so that the butt joint seat is communicated with a channel in the frame body, and liquid passing operation can be carried out in the frame body through the butt joint seat, or blood or other body fluids and the like are led out.

The end of the frame body and the butt joint seat can be connected in a plugging mode, a buckling mode, a screwing mode and the like in a plugging mode, if the plugging mode is adopted, the end of the frame body can be inserted into a butt joint channel of the butt joint seat by adopting an elastic material, the interference fit of the end of the frame body and the butt joint seat is utilized to form enough friction force to prevent the end of the frame body from being disconnected, or other inserting and buckling structures are adopted, the end of the frame body and the butt joint seat can be connected and disconnected randomly, and therefore the material can be flexible or hard.

Preferably, the butt joint channel of the butt joint seat is internally provided with a threaded ring capable of fixing the frame body, the outer surface of the frame body is provided with external threads, and the purpose of detachable butt joint is achieved through threaded screwing of the threaded ring and the external threads. The first operation end or the second operation end is separated independently through shearing the frame body, the frame body is fixed in the butt joint seat through the rotation of the threaded ring after the guide wire is pulled out, and temporary retention and liquid passing operation of the postoperative support are facilitated.

For removing the guide wire from the stent, the first/second operation end of the end portion of the stent may be removed in various manners, such as a manner similar to the manner of butt joint between the stent and the butt joint seat (insertion, fastening, screwing, etc.), and it is required to additionally consider whether the transition surface is sufficiently smooth during the design process, whether the insertion process scratches the wall of the fallopian tube, etc.

In the preferred scheme, the first operation end and the second operation end of the end part of the frame body can be integrally formed and manufactured, and the first operation end and the second operation end are separated in a cutting-off mode by a scalpel or a scissors, so that the guide wire can be extracted out after being exposed, the surface of the bracket can be ensured to be smooth enough in an integrally formed processing mode, and the damage to the oviduct in the implantation process is minimum.

Wherein, the butt joint seat and the frame body are made of hard materials (can adopt PVC, PE, PET and other medical plastics), or under the necessary condition, the butt joint seat can also adopt stainless steel and other metal materials as reusable articles.

Preferably, the injection device further comprises a fixing seat which is convenient to hold and connect with the needle cylinder, the butt joint seat is connected with the fixing seat, a medicine injection channel is arranged in the fixing seat, the medicine injection channel is communicated with the butt joint channel, and the medicine injection channel is adaptive to the shape of the needle cylinder. Because the medicine injection channel, the butt joint channel and the inside of the frame body are communicated, the medicine or the lubricant can be sent to the other end of the frame body only by injecting the medicine or the lubricant in the medicine injection channel through the needle cylinder, thereby promoting the healing of the lumen of the fallopian tube and preventing lumen adhesion.

Preferably, the outer surface of the frame body, which is close to the second operation end, is provided with a plurality of through holes, and the through holes are communicated with the inside of the bracket. After the frame body is placed, the frame body close to the second operation end is positioned in the lumen of the oviduct, and medicines can be uniformly distributed in the oviduct through the through holes at the frame body, so that the healing of the oviduct is further promoted, and the effect of preventing lumen adhesion is improved.

Preferably, the outer surface of the frame body is provided with a hydrophilic layer, so that the smooth effect on the placement of the bracket is achieved, and the smoothness of the placement of the bracket is further improved.

Drawings

Fig. 1 is a schematic view showing the structure of an example 1 of a tubal stent assembly used in a tubal recanalization operation according to the present utility model.

Fig. 2 is a schematic view showing the structure of the rack and the storage compartment in embodiment 1.

Fig. 3 is a schematic structural view of the rack housing state in embodiment 1.

Fig. 4 is a schematic structural diagram of the limiting assembly in embodiment 1.

Fig. 5 is a schematic structural diagram of the docking station and the fixing base in embodiment 1.

Fig. 6 is a schematic cross-sectional view of the docking station and the fixing base in embodiment 1.

Fig. 7 is a schematic structural diagram of a limit button in embodiment 2.

Reference numerals: 1. a bracket; 10. a frame body; 100. a through hole; 11. a first operation end; 12. a second operating end; 13. a guide wire; 2. a storage bin; 20. a lumen; 21. a notch; 22. a lumen opening; 3. a limit component; 30. a buckling seat; 31. a movable plate; 32. briquetting; 320. a limiting hole; 33. a buckle; 34. a clamping hole; 4. a butt joint seat; 40. a docking channel; 41. a threaded ring; 5. a fixing seat; 50. a drug injection channel; 6. a limit button; 60. a restraining groove; 61. an opening.

Detailed Description

Example 1:

The utility model is further described below with reference to the accompanying drawings.

The oviduct support assembly used in the oviduct recanalization operation as shown in fig. 1 to 6 comprises a support 1, a guide wire 13, a containing structure, a docking seat 4 and a fixing seat 5.

The bracket 1 comprises a bracket body 10, a first operating end 11 and a second operating end 12. Wherein the frame body 10 is of a tubular structure made of a ductile material, and a hydrophilic layer is arranged on the outer surface of the frame body 10; the guide wire 13 is movably arranged in the frame body 10, the first operating end 11 and the second operating end 12 are both in conical structures of arc-shaped ends,

The first operating end 11 and the second operating end 12 are different colors, and in this embodiment, the first operating end 11 has a structure of overall yellow, and the second operating end 12 has a structure of overall blue.

The first operating end 11 and the second operating end 12 are detachably connected to the frame body 10, respectively, and in this embodiment, the first operating end 11 or the second operating end 12 can be separately separated from the end of the frame body 10 by cutting the frame body 10.

In the embodiment, reasonable materials and lengths are set for the bracket 1 and the guide wire 13 according to the size and the position of the female genital organ, wherein the bracket body 10, the first operation end 11 and the second operation end 12 are all made of tough silica gel, the length of the bracket body 10 is 370mm, the external diameter is 1.5mm, and the internal diameter of the bracket body 10 is 0.8mm; the hydrophilic layer is a high molecular polymer hydrophilic coating with hydrophilic groups or a monomer hydrophilic coating with hydrophilic groups.

The length of the first operation end 11 and the second operation end 12 is 15mm, and the diameter is 1.0mm; the guide wire 13 is made of flexible aluminum wire which can be shaped and has a diameter of 0.6mm.

The outer surface of the frame body 10 near the second operation end 12 is provided with a plurality of through holes 100, and the through holes 100 are communicated with the inside of the bracket 1. In this embodiment, the aperture of the through hole 100 is 0.5mm, and is distributed in a 100mm frame near the second operation end 12.

The storage structure comprises a storage bin 2 and a limiting assembly 3 for limiting the movement of the support 1 in the storage bin 2.

The storage bin 2 is internally provided with a lumen 20 into which the bracket 1 can be placed, in the embodiment, the storage bin 2 is made of transparent PVC material, and the position and the residual length of the bracket 1 can be clearly defined when the storage bin is used, and the caliber of the lumen 20 is 3mm.

The accommodating bin 2 is provided with a notch 21 and two lumen openings 22 through which the first operating end 11 and the second operating end 12 can pass, and in this embodiment, in order to increase the winding degree of the bracket 1, the lumens 20 on the accommodating bin 2 are provided with two.

The limiting component 3 comprises a buckling seat 30 and a movable plate 31, the buckling seat 30 is fixedly arranged at the notch 21, the movable plate 31 is rotationally connected with the buckling seat 30, a pressing block 32 is arranged on the movable plate 31, a buckle 33 is arranged on the movable plate 31, and a clamping hole 34 which is matched with the buckle 33 is arranged on the buckling seat 30. The buckle 33 and the clamping hole 34 adopt a buckling structure in the prior art, the pressing block 32 is made of an elastic material, a limiting hole 320 for the bracket 1 to be placed in is formed in the pressing block 32, and in the embodiment, in order to increase the friction force between the pressing block 32 and the bracket 1, the pressing block 32 is made of elastic silica gel.

The butt joint seat 4 is connected with the fixed seat 5, a butt joint channel 40 for the frame body 10 to be put in is arranged in the butt joint seat 4, and a thread ring 41 for fixing the limiting bracket 1 is arranged in the butt joint channel 40; the fixed seat 5 is internally provided with a medicine injection channel 50, the medicine injection channel 50 is communicated with the butt joint channel 40, and the medicine injection channel 50 is adapted to the shape of the needle cylinder; the butt joint seat 4, the threaded ring 41 and the fixing seat 5 are all made of hard PVC materials.

In this embodiment, the docking station 4 and the fixing base 5 are both cylindrical structures, the diameter of the docking station 4 is 5mm, the diameter of the fixing base 5 is 12mm, the caliber of the docking channel 40 is 1.5mm, and the caliber of one end of the drug injection channel 50 away from the docking channel 40 is 3mm.

In the operation process of applying the oviduct support assembly to hysteroscope combined oviduct recanalization operation:

1. Firstly, after laparoscopic instruments are placed, the pelvic cavity internal adhesion is loosened, and the normal anatomical structures of uterus, oviduct and ovary are restored. The tubal ligation or occlusion site was found and cut with a cold knife, exposing the proximal and distal tubal lumens.

2. Then the movable plate 31 is turned over to enable the buckle 33 to be separated from the clamping groove, the pressing state of the pressing block 32 on the frame body 10 is relieved, the second operation end 12 is led into the proximal lumen of the oviduct through the oviduct opening in the uterine cavity under the guidance of the hysteroscope, in the placing process of the bracket 1, the main knife doctor is assisted by the second assistance to enable the bracket 1 penetrating from the proximal lumen of the oviduct to enter from the distal oviduct lumen and penetrate from the umbrella end of the oviduct, and in the placing process of the frame body 10, the hydrophilic layer enables the surface of the frame body 10 to be smooth and anti-sticking after contacting body fluid, so that the smooth effect is achieved. At this time, the frame body 10 is positioned in the lumen of the oviduct, and has the effect of supporting the oviduct, so that the lumen adhesion is avoided.

3. The hysteroscope is withdrawn, the movable plate 31 is rotated towards the direction of the buckling seat 30, so that the buckle 33 on the movable plate 31 is reinserted into the clamping hole 34 of the buckling seat 30, and the frame body 10 positioned at the notch 21 enters the limiting hole 320 of the pressing block 32 at the moment, so that the limiting and fixing of the frame body 10 are realized. The physician then twists the frame 10 adjacent the second operative end 12 to form a fishhook to prevent the stent 1 from backing out during suturing and to laparoscopically descend a tubal end-to-end anastomosis.

4. After the oviduct anastomosis is completed, the main knife doctor restores the fishhook-shaped frame body 10 close to the second operation end 12, and firstly cuts the frame body 10 which is about 3cm away from the cervical orifice, so that the first operation end 11 is separated from the frame body 10, and the guide wire 13 positioned in the frame body 10 is pulled out.

5. The end of the frame body 10 separated from the first operation end 11 is rotationally fixed in the docking channel 40 of the docking seat 4, and at this time, the threaded ring 41 positioned in the docking channel 40 is embedded into the frame body 10 to complete fixation, so that the frame body 10 is prevented from slipping out of the docking channel 40. If necessary, a syringe can be inserted into the drug injection channel 50, and drugs such as sodium hyaluronate, dexamethasone and the like can be injected to promote further healing of the lumen of the fallopian tube and prevent lumen adhesion formation.

During the operation of the oviduct bracket component applied to the open-abdomen oviduct recanalization operation:

The way in which the limiting assembly 3 and the docking station 4 and the fixed station 5 involved in this operation are used is the same as described above.

1. Firstly, open the abdomen for exploration, expose the oviduct structure, find the ligature or blocking part of the oviduct and cut by a cold knife, and expose the proximal and distal oviduct lumen.

2. Then, the limiting effect of the limiting component 3 on the frame body 10 is relieved through the method, and the main knife doctor is assisted by a help to enable the first operation end 11 to enter the oviduct lumen from the oviduct umbrella end, penetrate out from the distant fracture at the far end, penetrate into the uterine cavity from the distant fracture at the near end and penetrate out from the cervical orifice.

3. The limiting function of the limiting component 3 on the frame body 10 is achieved through the method, the unused support 1 is rolled and fixed, and the end-to-end anastomosis of the fallopian tube is performed under direct vision.

4. After the oviduct anastomosis is finished, the limiting state of the limiting component 3 on the support 1 is released, the support body 10 is pulled from the vagina by two assistance, and after the end of the second operation end 12, which is far away from the support body 10, is flush with the umbrella end of the oviduct, the guide wire 13 positioned in the support body 10 is sheared on the support body 10, which is about 3cm away from the cervical orifice, and is pulled out. And the end part of the frame body 10 separated from the first operation end 11 is connected with the butt joint seat 4 by the connection mode of the butt joint seat 4 and the frame body 10, so as to prevent the frame body 10 from slipping into the pelvis.

Example 2:

As shown in fig. 7, the technical content of this embodiment is basically the same as that of embodiment 1, and the technical points of the difference between this embodiment and embodiment 1 are that:

The limiting assembly 3 in the embodiment 1 is replaced by a limiting buckle 6 arranged at the notch 21 of the winding ring 2, and the whole limiting buckle 6 is made of elastic silica gel. The limiting buckle 6 is internally provided with a restraining groove 60 for the frame body 10 to be placed in, the limiting buckle 6 is provided with an opening 61, and the restraining groove 60 is communicated with the outside through the opening 61.

During the process of placing the bracket 1, the bracket body 10 can pass through the opening 61 and enter the restraint groove 60, and the restraint groove 60 clamps and limits the placed bracket body 10 due to the expansion and contraction characteristics of the elastic structure, so that the bracket body 10 is fixed; meanwhile, the opening 61 is smaller, so that the frame body 10 can be effectively prevented from being separated from the limiting ring 6.

The restraining groove 60 can be adjusted according to the length of the bracket 1, if the bracket 1 is long, two bracket bodies 10 can be clamped simultaneously by arranging the larger restraining groove 60, and if the bracket 1 is short, the restraining groove 60 which can only clamp a single bracket body 10 can be arranged for limiting.

While the foregoing is directed to the preferred embodiment of the present utility model, other and further modifications and improvements may be made by those skilled in the art without departing from the principles of the utility model, and such are intended to be considered within the scope of the utility model.

Claims (10)

1. A fallopian tube support assembly for use in fallopian tube recanalization surgery, characterized in that: including support (1), seal wire (13) and storage structure, support (1) are including support body (10), first operating end (11) and second operating end (12) are the toper structure of arc end, and first operating end (11) and second operating end (12) adopt ductile material to make, and seal wire (13) are located inside support body (10), support (1) are put into the in-process, and storage structure rolling support body (10) are in order to shorten the length that support (1) can hold.

2. A fallopian tube holder assembly for use in fallopian tube recanalization surgery according to claim 1, wherein: the storage structure comprises a storage bin (2), wherein the storage bin (2) is provided with one or more relatively independent tube cavities (20) capable of storing the support (1), a section of notch (21) is formed in the storage bin (2), and two ends of the notch are tube cavity openings (22) through which the first operation end (11) and the second operation end (12) can pass respectively.

3. A fallopian tube holder assembly for use in fallopian tube recanalization surgery according to claim 2, wherein: the storage bin (2) has two independent tube cavities (20).

4. A fallopian tube holder assembly for use in fallopian tube recanalization surgery according to claim 3, wherein: the storage structure further comprises a limiting component (3) used for limiting the movement of the support (1) in the storage bin (2), the limiting component (3) comprises a buckling seat (30) and a movable plate (31), the buckling seat (30) is fixedly arranged at the notch (21), the movable plate (31) is rotationally connected with the buckling seat (30), a pressing block (32) is arranged on the movable plate (31), a buckle (33) is arranged on the movable plate (31), and a clamping hole (34) which is matched with the buckle (33) is formed in the buckling seat (30).

5. A fallopian tube holder assembly for use in fallopian tube recanalization surgery according to claim 4, wherein: the pressing block (32) is made of elastic materials, and a limiting hole (320) for placing the bracket (1) is formed in the pressing block (32).

6. A fallopian tube holder assembly for use in fallopian tube recanalization surgery according to claim 1, wherein: the butt joint seat (4) used for connecting the support frame (1) is further included, a butt joint channel (40) used for placing the support body (10) is arranged in the butt joint seat (4), the guide wire (13) is located inside the support body (10), after the first operation end (11)/the second operation end (12) are separated from the support body (10), the guide wire (13) can be pulled out from the support body (10), and the end part of the support body (10) after the guide wire (13) is pulled out by the support frame (1) can be connected with the butt joint seat (4).

7. A fallopian tube holder assembly for use in fallopian tube recanalization surgery according to claim 6, wherein: the butt joint channel (40) of the butt joint seat (4) is internally provided with a threaded ring (41) capable of fixing the frame body (10), and the frame body (10) penetrates into the butt joint channel (40) in a rotating mode, so that the frame body (10) and the butt joint seat (4) are tightly fixed.

8. A fallopian tube holder assembly for use in fallopian tube recanalization surgery according to claim 6, wherein: the injection syringe is characterized by further comprising a fixing seat (5) which is convenient to hold and is connected with the syringe, the butt joint seat (4) is connected with the fixing seat (5), a medicine injection channel (50) is arranged in the fixing seat (5), the medicine injection channel (50) is communicated with the butt joint channel (40), and the medicine injection channel (50) is adaptive to the shape of the syringe.

9. A oviduct support assembly for use in a tubal recanalization procedure according to any one of claims 1 to 7, wherein: the outer surface of the frame body (10) close to the second operation end (12) is provided with a plurality of through holes (100), and the through holes (100) are communicated with the inside of the bracket (1).

10. A fallopian tube holder assembly for use in fallopian tube recanalization surgery according to claim 1, wherein: the outer surface of the frame body (10) is provided with a hydrophilic layer.