Auxiliary isolation device for intracranial aneurysm

Abstract

The invention belongs to the field of intracranial aneurysms, and provides an intracranial aneurysm auxiliary isolation device which comprises a pushing rod, a shielding piece is installed at one end of the pushing rod, the pushing rod is connected with the pushing rod through an electrolytic disengagement point, the outer side of the pushing rod is sleeved with a leather sleeve, the shielding piece is of an alloy net structure with a film, the net wire part can be developed, and the leather sleeve is made of a plastic material; the stent is used for assisting in pressing the shielding sheet, the shielding sheet is of a mesh sheet structure with a membrane, equivalently, a patch is added to the tumor neck, the intravascular stent is released to fix and press the shielding sheet, blood flow entering the aneurysm is blocked or obviously reduced, blood flow in the aneurysm slows down to form thrombus slow atrophy occlusion, and the blood flow in the aneurysm is reduced to form thrombus slow atrophy occlusion. The tumor neck is covered by a shielding sheet (isolation device) and a stent, and vascular endothelium creeping hyperplasia can slowly cover the stent to achieve the purpose of curing intracranial aneurysm.

Description

Technical Field

[0001] The present invention belongs to the field of intracranial aneurysms, and specifically relates to an auxiliary isolation device for intracranial aneurysms, which is superior to the current blood flow guidance treatment of intracranial aneurysms and coil embolization treatment of intracranial aneurysms. Background Art

[0002] Intracranial aneurysm is one of the common diseases in neurosurgery. It develops suddenly and is serious. If not treated in time, it can easily lead to rupture and bleeding, endangering the patient's life. In interventional treatment, auxiliary isolation devices play a vital role. They can effectively isolate or reduce blood flow into the aneurysm, avoid the risk of aneurysm rupture, and achieve the purpose of curing the aneurysm. The existing stent-assisted coil aneurysm embolization and blood flow guidance device implantation combine the advantages of microcatheter technology and coil embolization technology. The microcatheter is sent into the aneurysm cavity through vascular routes such as the femoral artery or radial artery. Under the guidance of the microcatheter, the coil is sent into the aneurysm, and its three-dimensional filling effect is used to occlude the aneurysm cavity, reducing the impact of blood flow on the aneurysm wall, thereby preventing the aneurysm from rupturing. At the same time, in order to maintain the patency of the tumor-bearing artery and reduce the risk of aneurysm rupture that may occur during coil embolization, intracranial special stents are often used for assistance during the operation.

[0003] However, during its use, the aneurysm is relatively thin, and the rupture of the coil during delivery and placement will cause the death of most patients, thus affecting the success rate of the operation. There is a certain probability of recurrence of coil packing, and the blood flow guidance device has the risk of blocking vascular branches and causing cerebral infarction. It cannot completely block the blood flow in the aneurysm and there is still a risk of rupture and bleeding, which brings great inconvenience.

[0004] To this end, those skilled in the art have proposed an intracranial aneurysm auxiliary isolation device to solve the problems raised by the background technology. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides an auxiliary isolation device for intracranial aneurysms to solve the problems raised in the prior art.

[0006] The intracranial aneurysm auxiliary isolation device comprises a push rod, one end of which is provided with a shielding sheet, the push rod is connected with the push rod through an electrolytic release point, and the outer side of the push rod is provided with a leather sleeve.

[0007] Preferably, the shielding sheet is a mesh alloy with a film, and most of the mesh wires are developed.

[0008] Preferably, the leather sleeve is made of plastic.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. The present invention replaces the spring coil with a shielding sheet, and uses the stent to assist in compressing the shielding sheet. The shielding sheet is a mesh sheet structure with a membrane, which is equivalent to adding a "patch" at the neck of the aneurysm. The shielding sheet is fixed and compressed by releasing the intravascular stent to block or significantly reduce the blood flow into the aneurysm. The slowed blood flow in the aneurysm will form a thrombus that slowly shrinks and occludes. The neck of the aneurysm is covered by a shielding sheet (isolation device) and a stent, and the creeping proliferation of the vascular endothelium will slowly cover the stent to achieve the purpose of curing the intracranial aneurysm. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0012] Figure 2 It is a front view of the present invention;

[0013] Figure 3 It is a schematic diagram of the structure in which the shielding sheet is received in the leather sleeve in the present invention;

[0014] In the figure:

[0015] 1. Push rod; 2. Shielding piece; 3. Electrolytic release point; 4. Leather sleeve. DETAILED DESCRIPTION

[0016] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0017] Embodiment 1: As shown in the attached Figure 1 To Attachment Figure 3 As shown: The present invention provides an auxiliary isolation device for intracranial aneurysm, including a push rod 1, one end of which is equipped with a shielding piece 2, the push rod 1 is connected to the push rod through an electrolytic release point 3, the outer side of the push rod 1 is provided with a leather sleeve 4, the shielding piece 2 is an alloy mesh structure with a film, the mesh part can be developed, and the stent is easily deformed and attached between the blood vessel and the stent after compression. If the position is not satisfactory after release, it can be 100% recovered if it is not released, and the release can be adjusted repeatedly again. The leather sleeve 4 is made of plastic.

[0018] As can be seen from the above, the device replaces the spring coil with a shielding sheet 2. The shielding sheet 2 is an alloy mesh structure with a membrane, and the mesh part can be developed, which is equivalent to adding a "patch" at the neck of the aneurysm. The stent fixes and compresses the shielding sheet 2, blocking or significantly reducing the blood flow into the aneurysm. The slowdown of blood flow in the aneurysm will form a thrombus that slowly shrinks and occludes. With the patch and stent compressing the neck of the aneurysm, the creeping proliferation of the vascular endothelium will slowly cover the stent to achieve the purpose of curing the intracranial aneurysm.

[0019] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

[0020] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0023] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0024] In the drawings of the embodiments disclosed in the present invention, only the structures involved in the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0025] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An intracranial aneurysm auxiliary isolation device, characterized in that: It comprises a push rod (1), one end of which is provided with a shielding sheet (2), the push rod (1) is connected to a push rod via an electrolytic release point (3), and the outer side of the push rod (1) is provided with a leather sleeve (4).

2. The intracranial aneurysm auxiliary isolation device according to claim 1, characterized in that: The shielding sheet (2) is a mesh-shaped alloy with a film, and most of the mesh wires are developed.

3. The intracranial aneurysm auxiliary isolation device according to claim 1, characterized in that: The leather sleeve (4) is made of plastic.

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