Aneurysm embolism auxiliary device

Abstract

The invention provides an aneurysm embolism auxiliary device, and belongs to the technical field of medical instruments. The device comprises a conveying catheter, an operating handle, a balloon and a filling unit, wherein the conveying catheter is used for conveying a treatment instrument to an aneurysm position; the operating handle is arranged at the near end of the conveying catheter; the balloon is arranged at the far end of the conveying catheter and is used for supporting a blood vessel after being filled; the filling unit is used for filling injection gel for treating the aneurysm into the aneurysm along the conveying catheter from the position of the operating handle, and the injection gel is used for being solidified in the aneurysm; during working, the conveying catheter conveys the balloon to the aneurysm position, the balloon supports a blood vessel for positioning after being filled, the filling unit fills injection gel into the aneurysm, and the injection gel is solidified and formed after entering the aneurysm so as to treat the aneurysm; the technical problems that in an existing aneurysm interventional therapy mode, a spring ring is prone to displacement, and bleeding risk is increased due to long-term medicine taking after stent implantation are mainly solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to an aneurysm embolization assisting device. Background Art

[0002] An aneurysm is a localized bulge in the arterial wall caused by disease or damage, with a pulsating mass as the main manifestation. It can occur in arteries throughout the body, with the main limb arteries, aorta, and cerebral blood vessels being the more common sites of onset.

[0003] Among aneurysm treatments, endovascular interventional therapy has been widely used due to its advantages of minimal trauma, rapid recovery, and relatively few complications. This treatment typically involves puncturing the femoral artery or other blood vessels, introducing a catheter, guidewire, or other device into the vessel, precisely targeting the aneurysm site. Treatment is then performed using methods such as coil embolization and stent implantation.

[0004] Coil embolization uses embolic material made of metal wire. Once inserted into the aneurysm cavity, it occupies the space and prevents blood from forming vortices within the cavity, thereby reducing the impact of blood flow on the aneurysm wall and reducing the risk of rupture. However, this treatment method has limitations. Problems such as coil compression, displacement, or residual aneurysm neck may occur, leading to aneurysm recurrence and requiring further treatment.

[0005] Stent implantation involves releasing a stent within the blood vessel at the aneurysm site to support the vessel wall, redirect blood flow, and divert blood flow away from the aneurysm, reducing direct impact on the aneurysm wall and lowering the risk of rupture. At the same time, the stent can also promote thrombosis within the aneurysm, further stabilizing the aneurysm. However, to prevent stent thrombosis, patients must take antiplatelet drugs such as aspirin and clopidogrel long-term after surgery, which increases the risk of bleeding, including gastrointestinal bleeding and epistaxis, and can affect patient health.

[0006] Therefore, it is necessary to provide an improved technical solution to the above-mentioned deficiencies in the prior art. Summary of the Invention

[0007] The purpose of the present invention is to provide an aneurysm embolization assisting device to solve technical problems in existing interventional treatments for aneurysms, such as easy displacement of coils and the need for long-term medication after stent implantation, which increases the risk of bleeding.

[0008] In order to achieve the above objectives, the aneurysm embolization assist device of the present invention provides the following technical solutions:

[0009] An aneurysm embolization assist device, comprising:

[0010] a delivery catheter for delivering a therapeutic device to the aneurysm site;

[0011] An operating handle, the operating handle being arranged at the proximal end of the delivery catheter;

[0012] A balloon, which is arranged at the distal end of the delivery catheter and is used to support the blood vessel after being inflated;

[0013] A filling unit, configured to fill the aneurysm with an injection gel for treating the aneurysm from the operating handle along the delivery catheter, the injection gel being configured to solidify within the aneurysm;

[0014] During operation, the delivery catheter delivers the balloon to the aneurysm location. After the balloon is inflated, it supports the blood vessel positioning. The filling unit fills the aneurysm with injection gel. After the injection gel enters the aneurysm, it solidifies and takes shape to treat the aneurysm.

[0015] As a further optimized technical solution, the delivery catheter is provided with a guidewire channel for allowing the guide wire to pass through, a filling channel for delivering a filling medium, and a filling channel for delivering an injection gel; the proximal end of the guidewire channel is connected to the operating handle, and the distal end extends to pass through the delivery catheter; the proximal end of the filling channel is connected to the operating handle, and the distal end is connected to the internal accommodating cavity of the balloon to control the deformation of the balloon; the proximal end of the filling channel is connected to the filling unit, and the distal end is used to connect to the external space to fill the aneurysm.

[0016] As a further optimized technical solution, the balloon is an eccentric structure and is arranged on one side of the delivery catheter.

[0017] As a further optimized technical solution, the cross section of the balloon is semicircular, and after being filled, the curved side is used to face away from the aneurysm, and the smooth side is used to face the aneurysm.

[0018] As a further optimized technical solution, a glue injection hole connected to the filling channel is arranged on the smooth side of the balloon, which is used to fill the aneurysm with injection gel.

[0019] As a further optimized technical solution, the filling unit includes two filling branch pipes, each filling channel is used to connect to a filling branch pipe, and the far end of each filling branch pipe is used to connect to a glue injection hole.

[0020] As a further optimized technical solution, the delivery catheter is provided with a developing component at the balloon position for displaying the position of the balloon during surgery.

[0021] As a further optimized technical solution, the developing component has end developing rings arranged on two shoulders of the balloon and a middle developing ring arranged between the two end developing rings.

[0022] As a further optimized technical solution, two middle developing rings are arranged, and the glue injection hole is arranged between the two middle developing rings.

[0023] As a further optimized technical solution, the guidewire channel is coaxially arranged with the delivery catheter, the filling channel and the filling channel are arranged at the radial ends of the guidewire channel, the filling channel is arranged on the curved side close to the balloon, and the filling channel is arranged on the smooth side close to the balloon.

[0024] Beneficial effects:

[0025] First, the present invention can temporarily isolate the aneurysm from the blood flow by supporting the blood vessel wall at the aneurysm location through the filling balloon, and then fill the aneurysm with injection gel through the filling unit. The injection gel solidifies and takes shape in the aneurysm. Compared with coil embolization, it can effectively avoid problems such as coil compression, displacement or residual aneurysm neck, and reduce the chance of aneurysm recurrence. The gel solidifies rapidly under the action of body temperature and can fit tightly to the inner wall of the aneurysm cavity to form a stable embolic structure, blocking the blood flow into the aneurysm cavity, and eliminating the hidden danger of aneurysm rupture from the root; compared with stent implantation, it avoids the risk of gastrointestinal bleeding, nose bleeding and other bleeding risks caused by long-term use of antiplatelet drugs after surgery, improves the safety and comfort of patients' postoperative recovery, and at the same time, reduces the damage to organ functions such as liver and kidney caused by long-term medication, and reduces the overall health risk of patients.

[0026] In addition, the device can be directly filled after the balloon is in place. Compared with the existing operation process that requires multiple placement of multiple spring coils, it is relatively simple. Medical staff can complete multiple operations such as balloon filling and injection pressure adjustment through the operating handle, reducing the tedious operation steps and instrument replacement time during the operation, effectively shortening the operation time, reducing the risk to patients during the operation, and improving the efficiency of the operating room.

[0027] Furthermore, the eccentric semicircular structure of the balloon enables the curved side to better fit the blood vessel wall after filling, stably supporting the blood vessel, while the smooth side faces the aneurysm, and the injection hole is arranged on this side, making it more convenient and accurate for the filling unit to inject gel into the aneurysm through the filling channel, thereby improving the treatment effect.

[0028] Furthermore, the setting of the developing component can clearly display the position of the balloon during the operation, facilitating accurate operation by medical staff, improving the accuracy and success rate of the operation, and allowing medical staff to monitor the position of the balloon and injection hole in real time, avoiding inaccurate injection due to position deviation or damage to surrounding normal tissues, especially in the treatment of aneurysms in delicate areas such as cerebral blood vessels, greatly improving the safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings and the accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. Among them:

[0030] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0031] Figure 2 for Figure 1 Schematic cross-sectional view along the AA direction;

[0032] Figure 3 for Figure 1 A top view of the overall structure;

[0033] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of the middle saccule;

[0034] Figure 5 A schematic diagram of the structure of a delivery catheter and a schematic cross-sectional diagram of a portion of the delivery catheter according to an embodiment of the present invention;

[0035] Figure 6 This is a schematic diagram of the cooperation relationship between the delivery catheter and the balloon according to one embodiment of the present invention.

[0036] In the figure: 100, delivery catheter; 110, guidewire channel; 120, filling channel; 130, filling channel; 140, glue injection hole; 150, filling hole; 200, operating handle; 300, balloon; 400, filling unit; 500, developing component; 510, end developing ring; 520, middle developing ring. DETAILED DESCRIPTION

[0037] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0038] In the description of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense. For example, they can be fixedly connected or detachably connected; they can be directly connected or indirectly connected through an intermediate component. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. In addition, the term "proximal end" refers to the end close to the operator, and "distal end" refers to the end away from the operator.

[0039] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.

[0040] The shapes and sizes of the components in the drawings do not reflect the actual proportions of the products, and are only intended to illustrate the contents of the present invention.

[0041] The present invention provides an aneurysm embolization auxiliary device, which aims to solve the problems of easy displacement of coils and increased bleeding risk caused by long-term medication required for stent implantation during existing aneurysm interventional treatment. The auxiliary balloon includes a delivery catheter, an operating handle, a balloon, and a filling unit. A guidewire channel, a filling channel, and a filling channel are provided in the delivery catheter. The balloon is an eccentric semicircular structure, arranged on one side of the delivery catheter, and a glue injection hole is provided on the smooth surface; the filling unit contains two filling branch pipes to realize dual-path glue injection. When working, the delivery catheter delivers the balloon to the aneurysm, the balloon fills the supporting blood vessel, and the filling unit fills the aneurysm with an injectable gel that is used to quickly solidify at body temperature through the glue injection hole. Compared with coil embolization, it avoids the disadvantages associated with coils and reduces the recurrence rate; there is no need to implant a stent, which reduces the risk of bleeding in patients after surgery due to medication.

[0042] Example 1

[0043] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown, the aneurysm embolization assist device includes a delivery catheter 100 for delivering a therapeutic device to the aneurysm location. The proximal end of the delivery catheter 100 is provided with an operating handle 200, and the distal end is provided with a balloon 300. It should be noted here that the "distal end" here does not refer to the distal end in an absolute sense, but rather to the proximal end of the delivery catheter 100. The balloon 300 is located closer to the distal end of the delivery catheter 100. Specifically, the balloon 300 is a set distance away from the absolute distal end of the delivery catheter 100. The distal end of the delivery catheter 100 is used to form a tip structure (commonly referred to as a "TIP"), thereby facilitating the pushing of the balloon 300 to the distal end. After being inflated, the balloon 300 is used to support the blood vessel. The device also includes a filling unit 400, which is used to fill the aneurysm with an injectable gel for treating the aneurysm from the position of the operating handle 200 along the delivery catheter 100.

[0044] The delivery catheter 100 is the core channel for delivering the device. It is made of medical-grade polymer materials and has good flexibility and pushability. Its unique multi-channel structure design provides convenient conditions for surgical operations. Figure 5 As shown, the delivery catheter 100 has a guidewire channel 110 for allowing a guidewire to pass through, a filling channel 120 for delivering a filling medium, and a filling channel 130 for delivering an injection gel.

[0045] like Figure 6 As shown, the guidewire channel 110 is connected to the operating handle 200 at its proximal end and extends to penetrate the delivery catheter 100 at its distal end. Its inner diameter is compatible with common guidewires available on the market, making it easier for the guidewire to guide the delivery catheter 100 to the aneurysm location. The filling channel 120 is connected to the operating handle 200 at its proximal end and to the internal accommodating chamber of the balloon 300 at its distal end, and is used to control the deformation of the balloon 300. In this way, the filling medium is controlled to enter the balloon 300 through the operating handle 200 to control the deformation of the balloon 300. In this embodiment, the distal end of the filling channel 120 extends to the distal end of the balloon 300 and is connected to the balloon 300 through the filling hole 150 at a set distance near the distal end. The filling channel 130 is connected to the filling unit 400 at its proximal end and is used to connect to the external space to fill the aneurysm at its distal end. Its inner wall has a low friction coefficient, which ensures smooth delivery of the injection gel. In this embodiment, the distal end of the filling channel 130 extends to the distal end of the balloon 300 , and a distance is set near the distal end through the injection hole 140 to fill the aneurysm.

[0046] The balloon 300 is made of a semi-compliant polymer material such as nylon, polyamide or PET, and is made by blow molding, injection molding, 3D printing or other methods, and is fixedly connected to the delivery catheter 100 by hot melting or laser welding. In this embodiment, the balloon 300 is an eccentric structure and is arranged on one side of the delivery catheter 100. The cross-section of the balloon 300 is semicircular. The curved side after filling is used to face away from the aneurysm. This design can fit the curved shape of the blood vessel wall and reduce interference with normal blood flow; the smooth side is used to face the aneurysm, which is convenient for precise operation. The glue injection hole 140 is arranged on the smooth side of the balloon 300 to connect to the filling channel 130. The aperture and number of the glue injection hole 140 are customized according to the different specifications of the balloon 300 and the aneurysm treatment requirements to achieve the function of filling the aneurysm with injection gel.

[0047] The injection gel is a two-component gel that solidifies quickly after mixing. To prevent the injection gel from solidifying before injection into the aneurysm, in this embodiment, the filling unit 400 includes two branch filling conduits, each connected to the two filling channels 130 within the delivery catheter 100. The distal end of each branch filling conduit is connected to a corresponding injection hole 140 for filling the aneurysm with the injection gel. Thus, when the injection gel is injected through the filling unit 400 of the operating handle 200, the two components of the two-component gel simultaneously reach the injection hole 140 through each filling channel 130. After being squeezed into the aneurysm from the injection hole 140, the gel mixes and solidifies, filling the aneurysm.

[0048] In this embodiment, the injection gel can be a gelatin-sodium alginate two-component gel or a polyethylene glycol-hyaluronic acid two-component gel.

[0049] When the injectable gel is a gelatin-sodium alginate two-component gel, component A primarily consists of gelatin. Gelatin, extracted from connective tissues such as animal skin and bone, is a natural biopolymer with excellent biocompatibility. It provides a suitable microenvironment for cell adhesion and proliferation, and can be enzymatically broken down in the body, ultimately metabolizing into small molecules such as amino acids. Gelatin powder is dissolved in normal saline and stirred in a set water bath until completely dissolved. The mixture is then cooled to room temperature and set aside. Component B is a sodium alginate solution. Sodium alginate, extracted from brown algae, cross-links with divalent cations in aqueous solution to form a stable gel structure. An appropriate amount of sodium alginate is slowly added to normal saline, stirring continuously until completely dissolved to obtain a homogeneous solution. When components A and B are mixed, the gelatin provides a supporting framework, while the sodium alginate rapidly cross-links with divalent cations such as calcium ions in human tissue fluid, forming a stable gel within minutes. This gel has a compact structure and good plasticity, capable of filling irregular aneurysm cavities and blocking blood flow impact. In addition, the injectable gel of this component has good biocompatibility. When the aneurysm recovers and gradually shrinks in the later stage, it can slowly degrade in the body, reducing the risk of rejection caused by long-term implants. The cross-linking reaction is fast and controllable, and doctors can flexibly adjust the mixing timing and dosage according to the progress of the operation, thereby improving the safety and success rate of the operation.

[0050] When the injectable gel is a two-component polyethylene glycol-hyaluronic acid gel, component A is composed of polyethylene glycol (PEG) modified with terminal reactive groups. PEG is a commonly used water-soluble polymer with excellent hydrophilicity, flexibility, and bioinertness, effectively reducing the immunogenicity of the gel. The modified reactive groups can chemically react with the other component. The PEG derivative is dissolved in a buffer solution and stirred evenly. Component B is a hyaluronic acid (HA) solution, in which the HA molecules carry reactive groups complementary to the PEG reactive groups. Hyaluronic acid is widely present in human connective tissue and plays a key role in maintaining the structure and function of the extracellular matrix. It has excellent moisturizing, lubricating, and promoting cell proliferation and migration properties. Hyaluronic acid is dissolved in a specific buffer solution to ensure its molecular structural integrity and activity. After mixing components A and B, PEG and the complementary reactive groups on the HA molecules undergo covalent cross-linking, forming a three-dimensional network structure gel. This reaction proceeds rapidly under physiological conditions, typically completing the gelation process within 3-5 minutes. The gel strength and stability can be precisely controlled by adjusting the ratio of the two components and the reaction conditions. In addition, the injectable gel of this ingredient is highly adjustable, and the mechanical properties and degradation rate of the gel can be customized according to the specific conditions of the aneurysm; the introduction of hyaluronic acid gives the gel good cell affinity, which is beneficial to tissue repair and regeneration, and facilitates clinical application and promotion.

[0051] Furthermore, the guidewire channel 110 is coaxially arranged with the delivery catheter 100. This layout ensures that the delivery catheter 100 is evenly stressed while following the guidewire and is less likely to deflect or rotate. This layout can better maintain the stability of the delivery catheter 100, especially in complex vascular pathways, allowing the balloon 300 to be accurately delivered to the target location, ensuring smooth operation. The filling channel 120 and the filling channel 130 are arranged at both radial ends of the guidewire channel 110, with the filling channel 120 arranged on the curved side of the balloon 300 and the filling channel 130 arranged on the smooth side of the balloon 300. This reasonable channel layout not only ensures the effective implementation of the functions of each component, but also reduces mutual interference between channels, thereby improving the overall performance of the device. In this embodiment, the filling channel 120 is coaxial with the guidewire channel 110 and has an arc angle of no less than 90°. This design aims to ensure that the filling channel 120 has a large cross-sectional area within the limited space of the delivery catheter 100, thereby facilitating the rapid and uniform flow of the filling medium into the balloon 300, thereby achieving rapid filling of the balloon 300. Furthermore, this design facilitates precise control of the pressure and shape of the balloon 300 during the filling process, thereby meeting the required filling level of the balloon 300 in different surgical scenarios.

[0052] Furthermore, the delivery catheter 100 is provided with a developing unit 500 at the location of the balloon 300, which is used to display the position of the balloon 300 during surgery. The developing unit 500 is made of a platinum-iridium alloy material with high developing properties and comprises end developing rings 510 disposed on the two shoulders of the balloon 300 and a middle developing ring 520 disposed between the two end developing rings 510. Two middle developing rings 520 are provided, and the glue injection hole 140 is disposed between the two middle developing rings 520. This facilitates medical personnel to accurately locate the balloon 300 and the glue injection hole 140 using imaging equipment such as X-rays, thereby improving the accuracy and safety of the surgery.

[0053] During operation, medical personnel first inspect the device to ensure that all components are tightly connected and free of damage or leaks. A guide wire is then inserted into the blood vessel through the guide wire channel 110. The guide wire, with its excellent flexibility and maneuverability, guides the delivery catheter 100 gradually to the aneurysm location. During this process, medical personnel can observe the delivery catheter 100's path in real time using imaging equipment such as angiography.

[0054] When the delivery catheter 100 reaches the predetermined position, the balloon 300 is positioned directly opposite the aneurysm. Then, through the filling control valve on the operating handle 200, physiological saline or contrast agent is injected into the filling channel 120 as the filling medium, gradually filling the balloon 300. After the balloon 300 is filled, its curved side closely adheres to the vessel wall, while the smooth side faces the aneurysm, providing stable support for subsequent filling operations. At this point, depending on the specific condition of the aneurysm, by manipulating the injection pressure and flow rate of the filling unit 400, the injection gel is injected into the aneurysm from the position of the operating handle 200 along the filling channel 130 of the delivery catheter 100 through the injection hole 140 at the set pressure and flow rate. During the injection process, medical staff continuously observe the imaging device 500 through imaging equipment. The end imaging ring 510 and the middle imaging ring 520 clearly display the boundaries of the balloon 300 and the location of the injection hole 140, ensuring accurate injection of the injection gel into the aneurysm and monitoring the filling status of the injection gel in the aneurysm in real time. When the injected gel fills the aneurysm cavity to the predetermined volume and the gel is evenly distributed as observed under imaging equipment, the injection operation is stopped.

[0055] After the operation, the medical staff extracts the filling medium in the balloon 300 by operating the handle 200 to shrink the balloon 300, and then slowly withdraws the delivery catheter 100 from the blood vessel.

[0056] In summary, the aneurysm embolization assisting balloon provided by the present invention effectively solves the problems existing in existing aneurysm interventional treatment methods through its unique structural design, and has high clinical application value and promotion significance.

[0057] It will be understood that the above description is merely exemplary and the embodiments of the present application do not limit this.

[0058] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. An aneurysm embolization assist device, characterized in that: include: A delivery catheter (100) for delivering a therapeutic device to the location of an aneurysm; an operating handle (200), wherein the operating handle (200) is disposed at the proximal end of the delivery catheter (100); A balloon (300), the balloon (300) being arranged at the distal end of the delivery catheter (100) and used to support a blood vessel after being inflated; A filling unit (400), the filling unit (400) is used to fill the aneurysm with an injection gel for treating the aneurysm from the position of the operating handle (200) along the delivery catheter (100), the injection gel being used to solidify in the aneurysm; During operation, the delivery catheter (100) delivers the balloon (300) to the location of the aneurysm. After the balloon (300) is inflated, it supports the blood vessel for positioning. The filling unit (400) fills the aneurysm with injection gel. After the injection gel enters the aneurysm, it solidifies and forms to treat the aneurysm.

2. The aneurysm embolization assist device according to claim 1, characterized in that: The delivery catheter (100) is provided with a guidewire channel (110) for allowing a guidewire to pass through, a filling channel (120) for delivering a filling medium, and a filling channel (130) for delivering an injection gel; the proximal end of the guidewire channel (110) is connected to an operating handle (200), and the distal end extends to penetrate the delivery catheter (100); the proximal end of the filling channel (120) is connected to the operating handle (200), and the distal end is connected to the internal accommodating cavity of the balloon (300) to control the deformation of the balloon (300); the proximal end of the filling channel (130) is connected to a filling unit (400), and the distal end is used to connect to an external space to fill an aneurysm.

3. The aneurysm embolization assist device according to claim 2, characterized in that: The balloon (300) is an eccentric structure and is arranged on one side of the delivery catheter (100).

4. The aneurysm embolization assist device according to claim 3, characterized in that: The cross section of the balloon (300) is semicircular, and after being filled, the curved side is used to face away from the aneurysm, and the smooth side is used to face the aneurysm.

5. The aneurysm embolization assist device according to claim 4, characterized in that: A glue injection hole (140) communicating with the filling channel (130) is arranged on one smooth side of the balloon (300) for filling the aneurysm with injection gel.

6. The aneurysm embolization assist device according to claim 5, characterized in that: The filling unit (400) comprises two filling branch pipes, each filling channel (130) is used to communicate with a filling branch pipe, and the distal end of each filling branch pipe is used to communicate with a glue injection hole (140).

7. The aneurysm embolization assist device according to any one of claim 5, characterized in that: The delivery catheter (100) is provided with a developing component (500) at the position of the balloon (300) for displaying the position of the balloon (300) during surgery.

8. The aneurysm embolization assist device according to claim 7, characterized in that: The developing component (500) comprises end developing rings (510) arranged at two shoulders of the balloon (300) and a middle developing ring (520) arranged between the two end developing rings (510).

9. The aneurysm embolization assist device according to claim 8, characterized in that: Two middle developing rings (520) are arranged, and the glue injection hole (140) is arranged between the two middle developing rings (520).

10. The aneurysm embolization assist device according to any one of claims 3 to 9, characterized in that: The guidewire channel (110) is coaxially arranged with the delivery catheter (100), and the filling channel (120) and the filling channel (130) are arranged at the radial ends of the guidewire channel (110). The filling channel (120) is arranged on the curved side close to the balloon (300), and the filling channel (130) is arranged on the smooth side close to the balloon (300).

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