An intracranial aneurysm occlusion device

Abstract

The application provides an intracranial aneurysm occlusion device, belonging to the technical field of interventional medical instruments; the intracranial aneurysm occlusion device comprises an intratumor part, an extratumor occlusion part, a connecting part, a delivery guide wire and a delivery catheter; the intratumor part and the extratumor occlusion part both have a contracted state and an expanded state; the intratumor part is arranged in the inner cavity of the aneurysm; the extratumor occlusion part is used for pressing the outer side wall of the aneurysm entrance; the connecting part is arranged between the intratumor part and the extratumor occlusion part and is used for connecting the intratumor part and the extratumor occlusion part; the extratumor occlusion part can move on the connecting part to adjust the distance from the intratumor part; the distal end of the delivery guide wire is detachably fixedly connected with the proximal end of the connecting part; the delivery catheter is used for containing the intratumor part and the extratumor occlusion part in the compressed state; and the technical problem that the existing intracranial aneurysm treatment device cannot effectively prevent blood flow from further flowing into the aneurysm and cause damage to the aneurysm is solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of interventional medical instruments, and particularly relates to an intracranial aneurysm occlusion device. BACKGROUND

[0002] The intracranial aneurysm is mostly found in the bifurcation of intracranial arteries, and is caused by the damage to the blood vessel wall due to congenital abnormalities or acquired injury and other factors, and gradually expands to form an abnormal bulge under the action of hemodynamic load and other factors.

[0003] Traditional treatment methods for intracranial aneurysm include:

[0004] (1) Surgical treatment, such as aneurysm neck clipping, aneurysm neck ligation, and incision suture of giant aneurysm, but this treatment method causes great damage to the patient's body.

[0005] (2) Medical drug treatment, which controls potential risk factors that can induce aneurysm rupture, such as controlling the patient's blood pressure, by oral administration or injection of drugs, but this treatment method has a long treatment cycle and slow effect.

[0006] (3) Minimally invasive interventional treatment, such as spring coil filling of aneurysm cavity, liquid glue filling of aneurysm cavity, and stent-assisted filling, which is widely promoted due to its minimally invasive treatment and significant treatment effect.

[0007] The minimally invasive interventional treatment method usually fills the spring coil into the aneurysm to change the blood flow field in the aneurysm, reduce the impact of blood on the inner wall of the aneurysm, and thus reduce the risk of aneurysm enlargement, and then fills the spring coil occlusion component at the aneurysm opening position to prevent external blood from continuing to flow into the aneurysm. As disclosed in patent document No. CN113069168A, an intracranial aneurysm occlusion device has a base body and a 3D spring coil, and in use, the 3D spring coil is used to fill into the aneurysm, and the base body is installed at the entrance position in the aneurysm as an occlusion component to prevent the spring coil from detaching from the aneurysm, and to prevent blood from further flowing into the aneurysm.

[0008] The existing device for treating aneurysm has the occlusion component arranged inside the aneurysm, and the gap between the occlusion component and the inner side wall of the aneurysm cannot be completely guaranteed to be tightly occluded. Under the impact of blood flow, the occlusion component will compress the spring coil, resulting in a gap between the occlusion component and the inner side wall of the aneurysm, and ultimately the blood continues to flow into the aneurysm, affecting the treatment effect. In addition, the spring coil of the device reciprocally deforms under the impact of blood flow, which further squeezes the side wall of the aneurysm, and in severe cases, can cause the aneurysm to rupture.

[0009] Therefore, it is necessary to provide an improved technical solution for the above-mentioned deficiencies of the prior art. SUMMARY

[0010] The present application aims to provide an intracranial aneurysm occlusion device to solve the technical problems that the existing intracranial aneurysm treatment device cannot effectively prevent blood flow from further flowing into the aneurysm, and causes damage to the aneurysm.

[0011] In order to achieve the above-mentioned purpose, the intracranial aneurysm occlusion device of the present application provides the following technical solutions:

[0012] An intracranial aneurysm occlusion device comprises:

[0013] An aneurysm internal component having a contracted state and an expanded state, which is arranged in the inner cavity of the aneurysm;

[0014] An aneurysm external occlusion component having a contracted state and an expanded state, which is used to press the outer wall of the aneurysm entrance;

[0015] A connecting component arranged between the aneurysm internal component and the aneurysm external occlusion component and used to connect the aneurysm internal component and the aneurysm external occlusion component;

[0016] A delivery guide wire, the distal end of which is detachably fixedly connected with the proximal end of the connecting component, and is used to release the aneurysm internal component and the aneurysm external occlusion component;

[0017] A delivery catheter, which is used to contain the aneurysm internal component and the aneurysm external occlusion component in the compressed state, and deliver the aneurysm internal component and the aneurysm external occlusion component to the set position.

[0018] As a further optimized technical solution, the proximal end of the aneurysm internal component is provided with a first developing ring, and the distal end of the aneurysm external occlusion component is provided with a second developing ring, which is used to show the distance between the aneurysm internal component and the aneurysm external occlusion component.

[0019] As a further optimized technical solution, the connecting component is a screw structure, the distal end of which is rotationally connected with the aneurysm internal component, and the proximal end of which passes through the middle part of the aneurysm external occlusion component and is threadedly connected with the aneurysm external occlusion component.

[0020] As a further optimized technical solution, the aneurysm external occlusion component is provided with a sealing film, which is used to prevent blood from flowing into the aneurysm.

[0021] As a further optimized technical solution, the sealing film is arranged on the side of the aneurysm external occlusion component which faces the aneurysm internal component after the expansion of the aneurysm external occlusion component.

[0022] As a further optimized technical solution, the proximal end of the connecting component and the distal end of the delivery guide wire are provided with a connecting structure, which can axially connect the connecting component and the delivery guide wire, and can circumferentially block the relative rotation of the delivery guide wire and the connecting component.

[0023] As a further optimization technical solution, the connecting structure has a protrusion with a polygonal cross section and a groove, the shape of the groove is matched with the protrusion, the groove is arranged on the end face of the proximal end of the connecting component, and the protrusion is arranged on the end face of the distal end of the delivery guide wire.

[0024] As a further optimization technical solution, the groove is provided with a first magnetic block, and the protrusion is provided with a second magnetic block which can interact with the first magnetic block, so as to ensure quick disassembly of the protrusion and the groove.

[0025] As a further optimization technical solution, the second magnetic block is spirally wound with an electromagnetic coil, so that the magnetism of the second magnetic block can be controlled.

[0026] As a further optimization technical solution, the tumor-external occlusion component is in a disc-shaped shape in the expanded state.

[0027] Beneficial effects: When the intracranial aneurysm occlusion device is used, the tumor-internal component is released in the tumor body to disturb the blood flow in the tumor body, the tumor-external occlusion component is released outside the tumor body and pressed against the outer sidewall of the tumor body entrance, thereby preventing external blood from continuing to flow into the tumor body, and the tumor-external occlusion component can move on the connecting component to adjust the distance between the tumor-internal component and the tumor-external occlusion component, so as to ensure that the tumor-internal component and the tumor-external occlusion component tightly press the sidewall of the tumor entrance, and the stability of the tumor-internal component and the tumor-external occlusion component during the treatment process is ensured. Even if the blood flow impacts the tumor-external occlusion component, the tumor-external occlusion component will only be more tightly attached to the outer sidewall of the tumor entrance, so that the tumor entrance is sealed more tightly, and blood is less likely to flow into the tumor body, thereby ensuring the treatment effect. In addition, because the tumor-internal component and the tumor-external occlusion component are stably clamped on the sidewall of the tumor entrance by the connecting component, when the blood flow impacts the tumor-external occlusion component, the external occlusion component will not excessively press the tumor-internal component inward, thereby improving the safety of the tumor during the treatment process. BRIEF DESCRIPTION OF DRAWINGS

[0028] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the application, and together with the description of the exemplary embodiments of the application given below, serve to explain the application, and do not constitute an improper limitation on the application. Among them:

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0030] Figure 2 It is a schematic diagram of the tumor-internal component and the tumor-external occlusion component in the expanded state of an embodiment of the present application;

[0031] Figure 3 It is a schematic diagram of the assembly relationship of the connecting component, the first developing ring and the second developing ring of an embodiment of the present application;

[0032] Figure 4 Figure 1 is a schematic view of the assembly relationship between the delivery guide wire and the connecting component according to an embodiment of the present application;

[0033] Figure 5 Figure 2 is an end view of the distal end of the delivery guide wire according to an embodiment of the present application;

[0034] Figure 6 Figure 3 is a schematic view of the releasing process according to an embodiment of the present application;

[0035] Figure 7 Figure 4 is a schematic view of the inflated state of the intratumor component and the extratumor blocking component according to another embodiment of the present application.

[0036] In the figure: 1, intratumor component; 2, extratumor blocking component; 3, connecting component; 4, delivery guide wire; 5, delivery catheter; 6, first visualization ring; 7, second visualization ring; 8, sealing membrane; 9, connecting structure; 901, protrusion; 902, groove; 10, electromagnetic coil; 11, tumor. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application belong to the scope of protection of the present application.

[0038] In the description of the present application, the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application, and are not required to have the present application constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms "connected", "connected" used in the present application should be understood broadly, for example, can be fixed connection, can also be detachable connection; can be directly connected, can also be indirectly connected through intermediate components; for those skilled in the art, the specific meaning 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 the term "distal end" refers to the end away from the operator.

[0039] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0040] The application provides an intracranial aneurysm occlusion device, which is characterized by comprising an intraneurysmal part and an extraneurysmal occlusion part which are respectively arranged in the aneurysm and outside the aneurysm, the intraneurysmal part and the extraneurysmal occlusion part can adjust the distance between each other through a connecting part, and the intraneurysmal part and the extraneurysmal occlusion part are clamped on the side wall of the aneurysm body, so that the blood flow into the aneurysm body is effectively prevented, and the probability of the rupture of the aneurysm body caused by the extrusion of the spring ring during the treatment process is reduced.

[0041] Embodiment 1

[0042] Specifically as Figure 1 shown, the intracranial aneurysm occlusion device has an intraneurysmal part 1, an extraneurysmal occlusion part 2, a connecting part 3, a delivery guide wire 4 and a delivery guide tube 5.

[0043] The intraneurysmal part 1 and the extraneurysmal occlusion part 2 are both net structures which are woven by using a memory metal alloy (such as a nickel-titanium alloy) wire, and both have a contracted state and an expanded state.

[0044] Figure 1 The compressed state of the intraneurysmal part 1 and the extraneurysmal occlusion part 2 is shown, and in this state, the intraneurysmal part 1 and the extraneurysmal occlusion part 2 are conveniently stored at the distal end of the delivery guide tube 5 for delivery. Figure 2 The expanded state of the intraneurysmal part 1 and the extraneurysmal occlusion part 2 is shown, and in this state, the intraneurysmal part 1 is approximately in the shape of a sphere to sufficiently fill the inner cavity of the aneurysm body 11, so as to change the blood flow field in the aneurysm body 11, reduce the impact of the blood on the inner wall of the aneurysm body 11, and further reduce the risk of aneurysm enlargement. The extraneurysmal occlusion part 2 is in the shape of a disc in the expanded state, and is used to press the outer side wall of the entrance of the aneurysm body 11 to sufficiently adhere to and occlude the entrance of the aneurysm body 11, while reducing the occupation of the space in the blood vessel and reducing the influence on the normal blood flow.

[0045] The connecting part 3 is arranged between the intraneurysmal part 1 and the extraneurysmal occlusion part 2 and is used to connect the intraneurysmal part 1 and the extraneurysmal occlusion part 2; the extraneurysmal occlusion part 2 can move on the connecting part 3 to adjust the distance between the intraneurysmal part 1 and the extraneurysmal occlusion part 2, so as to clamp the intraneurysmal part 1 and the extraneurysmal occlusion part 2 on the side wall of the aneurysm body 11.

[0046] As Figure 4 , Figure 5 shown, the distal end of the delivery guide wire 4 and the proximal end of the connecting part 3 are detachably fixedly connected, and are used to release the intraneurysmal part 1 and the extraneurysmal occlusion part 2.

[0047] The delivery guide tube 5 is used to contain the intraneurysmal part 1 and the extraneurysmal occlusion part 2 in the compressed state, and deliver the intraneurysmal part 1 and the extraneurysmal occlusion part 2 to the set position.

[0048] Specifically as Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the first visualization ring 6 is integrally fixed to the proximal end of the intratumor component 1, and the second visualization ring 7 is integrally fixed to the distal end of the extratumor blocking component 2. The two visualization rings can facilitate the surgeon to determine the specific positions of the intratumor component 1 and the extratumor blocking component 2 during the operation, and can more intuitively display the distance change between the intratumor component 1 and the extratumor blocking component 2 when adjusting the distance between the intratumor component 1 and the extratumor blocking component 2.

[0049] In the present embodiment, the connecting component 3 is a screw structure, the distal end of the screw structure is rotationally connected with the first visualization ring 6 of the intratumor component 1, and the proximal end of the screw structure penetrates through the middle part of the extratumor blocking component 2 and is threadedly connected with the second visualization ring 7 of the extratumor blocking component 2.

[0050] Therefore, when the intratumor component 1 and the extratumor blocking component 2 are released, the delivery catheter 5 carrying the intratumor component 1 and the extratumor blocking component 2 in the compressed state is pushed to the position of the tumor 11, then the position of the delivery guide wire 4 is kept unchanged, the delivery catheter 5 is pulled backward (i.e. the proximal end), the intratumor component 1 is released into the tumor 11, then the delivery catheter 5 is kept unchanged, and the delivery guide wire 4 is rotationally driven, at this time, the delivery guide wire 4 drives the connecting component 3 to rotate synchronously, because the extratumor blocking component 2 is compressed in the delivery catheter 5, the tension of the extratumor blocking component 2 makes the extratumor blocking component 2 press the inner side wall of the delivery catheter 5, under the constraint of the delivery catheter 5, the extratumor blocking component 2 cannot rotate synchronously with the connecting component 3, because the connecting component 3 rotates, the second visualization ring 7 is threadedly connected with the connecting component 3, therefore, the extratumor blocking component 2 moves along the connecting component 3 in the axial direction with the second visualization ring 7, and the distance between the extratumor blocking component 2 and the intratumor component 1 is adjusted, when the distance between the second visualization ring 7 and the first visualization ring 6 is adjusted to meet the set requirement, the extratumor blocking component 2 is released by pulling the delivery catheter 5 backward, then the connection between the distal end of the delivery guide wire 4 and the proximal end of the connecting component 3 is disconnected, and the delivery guide wire 4 is withdrawn from the patient's body.

[0051] In the above technical solution, because the extratumor blocking component 2 is a mesh structure, it is difficult to completely prevent blood from passing through, if the mesh hole is processed to be small enough to prevent blood from passing through, the overall weight and the compressed volume of the extratumor blocking component 2 will inevitably increase. The weight increase will cause the patient's rejection reaction to increase, and the compressed volume increase will make the extratumor blocking component 2 not easy to be put into the delivery catheter 5 and not easy to be pushed out of the delivery catheter 5 after being compressed, therefore, such operation will increase the difficulty of releasing the extratumor blocking component 2, in order to solve this technical problem, the sealing film 8 is arranged on the extratumor blocking component 2 in the present embodiment to prevent blood from flowing into the inside of the tumor 11. In the present embodiment, the sealing film 8 can be made of medical silica gel or TPE material.

[0052] Further, the sealing film 8 is adhered and fixed to the side of the outer occlusion member 2 facing the inner member 1 after the outer occlusion member 2 is inflated. In this way, when the outer occlusion member 2 is pressed against the side wall of the tumor 11, the sealing film 8 is pressed against the tumor 11, thereby further increasing the sealing performance of the sealing film 8 and the entrance of the tumor 11.

[0053] As shown in Figure 3 , Figure 4 , Figure 5 The proximal end of the connecting member 3 and the distal end of the delivery guide wire 4 have a connecting structure 9, and the distal end of the delivery guide wire 4 and the proximal end of the connecting member 3 are detachably fixedly connected through the connecting structure 9. The connecting structure 9 can axially connect the connecting member 3 and the delivery guide wire 4, and can circumferentially block the relative rotation of the delivery guide wire 4 and the connecting member 3.

[0054] Specifically, the connecting structure 9 has a protrusion 901 with a polygonal cross section and a groove 902, the shape of the groove 902 is matched with the protrusion 901, the groove 902 is arranged on the end face of the proximal end of the connecting member 3, and the protrusion 901 is arranged on the end face of the distal end of the delivery guide wire 4, and the protrusion 901 is used to penetrate into the groove 902 to connect with the groove 902.

[0055] In this embodiment, the cross section of the protrusion 901 is quadrangular, and in other embodiments, the cross section of the protrusion 901 can also be triangular, pentagonal, hexagonal, etc., as long as the circumferential blocking of the delivery guide wire 4 and the connecting member 3 can be achieved, the invention purpose of the present scheme can be achieved.

[0056] In the above technical solution, the protrusion 901 can be fixed with the groove 902 by clamping when connected, but the clamping method is not easy to disassemble. In order to realize the assembly and disassembly of the protrusion 901 and the groove 902, a first magnetic block is arranged in the groove 902, and a second magnetic block that can interact with the first magnetic block is arranged in the protrusion 901, so as to realize the quick assembly and disassembly of the protrusion 901 and the groove 902.

[0057] Further, the second magnetic block can be spirally wound with an electromagnetic coil 10 outside, so that the magnetism of the second magnetic block can be controlled. The magnetic pole of the second magnetic block at the position of the convex block 901 can be changed by changing the current direction of the electromagnetic coil 10, so that the assembly and disassembly operation is more convenient. For example, when the delivery guide wire 4 is connected with the connecting component 3, the magnetic pole of the second magnetic block in the convex block 901 is opposite to the magnetic pole of the first magnetic block in the groove 902, at this time, the convex block 901 can be attracted to the groove 902 as soon as it approaches the groove 902, so as to quickly enter the groove 902, thereby realizing quick assembly. During the operation, the current of the electromagnetic coil 10 can be increased to ensure the stable connection of the delivery guide wire 4 and the connecting component 3, when the intratumor component 1 and the tumor outer blocking component 2 are released, the current direction of the electromagnetic coil 10 is changed, so that the magnetic pole of the second magnetic block in the convex block 901 is the same as the magnetic pole of the first magnetic block in the groove 902, at this time, the convex block 901 and the groove 902 repel each other, thereby realizing quick disconnection of the delivery guide wire 4 and the connecting component 3.

[0058] As shown in Figure 6 , the specific use method of the present application is as follows:

[0059] Firstly, the intratumor component 1 and the tumor outer blocking component 2 are compressed into the distal end of the delivery catheter 5, and the delivery guide wire 4 is connected with the connecting component 3, as shown in (a) of Figure 6 , the delivery catheter 5 carrying the intratumor component 1 and the tumor outer blocking component 2 in a compressed state is pushed to the position of the tumor 11.

[0060] Secondly, as shown in (b) of Figure 6 , the position of the delivery guide wire 4 is kept unchanged, and the delivery catheter 5 is pulled backward until the intratumor component 1 is gradually released into the tumor 11.

[0061] Thirdly, as shown in (c) of Figure 6 , when the intratumor component 1 is completely released into the tumor 11, the delivery catheter 5 is kept unchanged, and the delivery guide wire 4 is rotated in the circumferential direction, so that the tumor outer blocking component 2 moves along the connecting component 3 in the axial direction with the second developing ring 7, thereby adjusting the distance between the tumor outer blocking component 2 and the intratumor component 1.

[0062] Fourthly, when the distance between the second developing ring 7 and the first developing ring 6 is adjusted to meet the set requirement, the delivery catheter 5 is pulled backward to release the tumor outer blocking component 2, then the connection between the distal end of the delivery guide wire 4 and the proximal end of the connecting component 3 is disconnected, the delivery guide wire 4 is withdrawn from the patient's body, and the tumor outer blocking component 2 is blocked at the entrance of the tumor 11, as shown in (d) of Figure 6 .

[0063] Example 2

[0064] As shown in Figure 7As shown, the present embodiment provides a tumor inner part 1 which presents different shapes after expansion. The present embodiment is identical with embodiment 1 except the shape of the expanded tumor inner part 1, which will not be repeated here. In the present embodiment, the tumor inner part 1 is disc-shaped after expansion, at which time the disc-shaped tumor inner part 1 cooperates with the tumor outer blocking part 2 to hold and block the entrance of the tumor.

[0065] It can be understood that the above description is only exemplary, and the present application is not limited thereto.

[0066] The above only the preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, are within the scope of the claims of the present application.

Claims

1. An intracranial aneurysm occlusion device, characterized in that, include: Intratumoral component (1), which has a contracted state and an expanded state, is placed in the cavity of the tumor body (11); External sealing component (2), which has a contracted state and an expanded state, is used to press the outer wall of the tumor (11) entrance; A connecting component (3) is disposed between the intratumoral component (1) and the extratumoral sealing component (2) and is used to connect the intratumoral component (1) and the extratumoral sealing component (2). The delivery guide wire (4) is detachably fixed to the proximal end of the connecting component (3) for releasing the intratumoral component (1) and the extratumoral sealing component (2). Delivery conduit (5), the delivery conduit (5) is used to hold the intratumoral component (1) and the extratumoral sealing component (2) in a compressed state, and to deliver the intratumoral component (1) and the extratumoral sealing component (2) to a set position; The connecting component (3) is a screw structure. The distal end of the screw structure is rotatably connected to the internal component (1), and the proximal end passes through the middle of the external sealing component (2) and is threadedly connected to the external sealing component (2). When releasing the intratumoral component (1) and the extratumoral occlusion component (2), the delivery catheter (5) carries the intratumoral component (1) and the extratumoral occlusion component (2) to the tumor body (11) position. The delivery catheter (5) is pulled backward until the intratumoral component (1) is released into the tumor body (11). The delivery catheter (5) is kept still, and the delivery guide wire (4) is rotated circumferentially. The delivery guide wire (4) drives the connecting component (3) to rotate synchronously, so as to drive the extratumoral occlusion component (2) to move axially along the connecting component (3) to adjust the distance between the extratumoral occlusion component (2) and the intratumoral component (1). The intratumoral component (1) has a first imaging ring (6) at its proximal end and the extratumoral sealing component (2) has a second imaging ring (7) at its distal end, for displaying the distance between the intratumoral component (1) and the extratumoral sealing component (2).

2. The intracranial aneurysm occlusion device according to claim 1, characterized in that, The external sealing component (2) is provided with a sealing membrane (8) to prevent blood from flowing into the tumor (11).

3. The intracranial aneurysm occlusion device according to claim 2, characterized in that, The sealing membrane (8) is placed on the side of the external sealing component (2) facing the internal component (1) after the external sealing component (2) expands.

4. The intracranial aneurysm occlusion device according to any one of claims 1-3, characterized in that, The proximal end of the connecting component (3) and the distal end of the delivery guide wire (4) have a connecting structure (9), which can axially connect the connecting component (3) and the delivery guide wire (4), and can circumferentially prevent the delivery guide wire (4) and the connecting component (3) from rotating relative to each other.

5. The intracranial aneurysm occlusion device according to claim 4, characterized in that, The connecting structure (9) has a polygonal protrusion (901) and a groove (902) with the shape of the groove (902) matching the protrusion (901). The groove (902) is located on the end face of the near end of the connecting component (3), and the protrusion (901) is located on the end face of the far end of the conveying guide wire (4). The protrusion (901) is used to penetrate into the groove (902) and connect with the groove (902).

6. The intracranial aneurysm occlusion device according to claim 5, characterized in that, A first magnetic block is provided in the groove (902), and a second magnetic block that can interact with the first magnetic block is provided in the corresponding protrusion (901) to ensure quick assembly and disassembly of the protrusion (901) and the groove (902).

7. The intracranial aneurysm occlusion device according to claim 6, characterized in that, The second magnetic block is spirally wound with an electromagnetic coil (10) so that the magnetism of the second magnetic block can be controlled.

8. The intracranial aneurysm occlusion device according to any one of claims 1-3, characterized in that, The external tumor sealing component (2) is in a disc-shaped expanded state.

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