CN105055047A - Vascular stent for treating cerebral artery bifurcation aneurysms and its application - Google Patents

Vascular stent for treating cerebral artery bifurcation aneurysms and its application Download PDF

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CN105055047A
CN105055047A CN 201510436364 CN201510436364A CN105055047A CN 105055047 A CN105055047 A CN 105055047A CN 201510436364 CN201510436364 CN 201510436364 CN 201510436364 A CN201510436364 A CN 201510436364A CN 105055047 A CN105055047 A CN 105055047A
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stent
distal end
mesh
body
aneurysm
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CN 201510436364
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高不郎
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高不郎
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Abstract

The invention relates to a vascular stent for treating cerebral artery bifurcation aneurysms, comprising a stent body of a mesh structure. A proximal end of the stent body is open, and a distal end thereof is closed; the distal end has a certain inclination. The stent body is tubular, with the distal end expanding out in a flared form. The invention further provides application of the vascular stent. The vascular stent is convenient to use to treat bifurcation aneurysms different in angle and form, allows the aneurysms to be better closed and ensures simplified therapeutic operations and improved therapy safety.

Description

用于脑动脉分叉处动脉瘤的血管支架及其应用 Application for vascular stents and cerebral artery bifurcation aneurysm

技术领域 FIELD

[0001] 本发明属于医疗器械领域,具体涉及治疗脑动脉分叉处动脉瘤的血管支架及其应用。 [0001] The present invention belongs to the field of medical devices, and particularly relates to treatment of vascular stent cerebral artery bifurcation aneurysm.

背景技术 Background technique

[0002] 动脉瘤是由于动脉管壁局部薄弱而发生的一种永久性膨胀性疾病。 [0002] An aneurysm is a permanent expansion of diseases due to the weak local arterial wall occurs. 脑动脉瘤属于周围动脉瘤,是指脑动脉管壁局限性扩张产生的瘤样突起,突起的动脉瘤瘤壁在血流的不断冲击下逐渐变薄并最终破裂出血。 Belonging to a brain aneurysm around the aneurysm, refers to the expansion of the limitations of the arterial wall of cerebral aneurysms generated like protrusions, the protrusions tapering walls of the aneurysm and ultimately rupture under the impact of blood flow continuously. 脑动脉瘤破裂出血发病急、症状重、无明显先兆,具有很高的死亡率和致残率。 Ruptured cerebral aneurysm acute hemorrhage, symptoms, no obvious sign, with high mortality and morbidity. 脑动脉瘤的治疗主要分外科手术夹闭和血管内介入栓塞治疗。 The main points of the treatment of cerebral aneurysms surgical clipping and endovascular embolization. 但外科手术夹闭创伤大、并发症多、手术以及恢复时间都很长,不受医生和患者的欢迎。 But surgical clipping trauma, complications, surgery and recovery time is very long, unpopular with doctors and patients. 随着微创性的血管内介入治疗技术的发展进步,越来越多的脑动脉瘤患者接受血管内介入治疗技术,血管内介入栓塞技术也逐渐成为脑动脉瘤治疗的主导技术。 With the development and progress of interventional endovascular therapy minimally invasive, more and more patients undergoing interventional treatment of cerebral aneurysms endovascular techniques, endovascular embolization technique has gradually become the dominant technology in the treatment of cerebral aneurysms.

[0003] 脑动脉瘤的血管内栓塞,主要是使用可解脱弹簧圈通过微导管植入动脉瘤内进行栓塞,使得动脉瘤腔内形成血栓而闭合并达到解剖治愈。 Intravascular [0003] cerebral aneurysm embolization, primarily using releasably embolization coils through a microcatheter implanted within the aneurysm, the aneurysm cavity so that thrombosis is closed and anatomical cure. 对于位于动脉分叉处的宽颈动脉瘤而言,单纯弹簧圈不容易栓塞,往往需要支架辅助栓塞(如图1);这时,需要分别置入两个支架进入血管的两个主要分支内,才能进行弹簧圈栓塞治疗。 For artery bifurcation is located at a wide-necked aneurysms, simple coil embolization is not easy and often requires auxiliary plug holder (1); in this case, needs to push the two main branches of the two stents into the vessel, respectively to conduct coil embolization. 共有三步:第一步,置入第一个支架(图1中的标号7);第二步,交叉置入第二个支架(图1中的标号8);第三步,将微导管通过交叉置入的两个支架放入动脉瘤内进行弹簧圈(图1中的标号9)栓塞。 There are three steps: the first step, into a first bracket (reference numeral 7 in FIG. 1); a second step, into the second cross bracket (reference numeral 18 in FIG.); A third step, the microcatheter for embolic coils (reference numeral 9 in FIG. 1) by two intersecting stent was placed within the aneurysm. 这样的步骤操作比较繁琐,支架对血管的影响范围也广,可能引起不必要的分支血管管壁增生、狭窄甚至闭塞;在置入操作时,复杂的操作也可能引发血栓形成,造成不必要的栓塞并发症。 Such a more complicated operation steps, the scope of the stent on the vessel is also wide, may cause unnecessary branch vessel wall hyperplasia, stenosis or occlusion; when placing operation, complicated operation may also lead to thrombosis, resulting in unnecessary embolic complications. 另外,如果只植入一个支架,又不能很好地封闭动脉瘤口部、进行安全治疗。 In addition, if only implanted a stent, but not very well close the aneurysm mouth, safe treatment. 以上这种支架以及操作方法既不安全、也不方便,迫切需要开发一种使用简单、操作方便的支架用于治疗脑动脉分叉处动脉瘤。 And the above method of operation of such a stent is neither safe nor easy, urgent need to develop a simple to use, easy to operate stent for treating cerebral artery bifurcation aneurysm.

发明内容 SUMMARY

[0004] 本发明所要解决的技术问题是提供一种用于治疗脑动脉分叉处动脉瘤的血管支架,便于放置和治疗分叉处动脉瘤,提高治疗的安全性,并简化治疗步骤。 [0004] The present invention solves the technical problem is to provide a method for treating a vascular stent cerebral artery bifurcation aneurysm, to facilitate placement and treatment of bifurcation aneurysm, improving safety of the treatment, and simplifies the treatment step.

[0005] 本发明解决上述问题采用如下技术方案:一种用于脑动脉分叉处动脉瘤的血管支架,包括:支架主体,所述支架主体为网状结构,所述支架主体的近端开放,远端为网状闭合结构;所述支架主体为圆管状,远端向外扩张呈扩口形。 [0005] The present invention is to solve the above problems the following technical solution: an intravascular stent cerebral artery bifurcation aneurysm, comprising: a bracket body, the bracket body is a net-like structure, said open proximal end of the stent body , a closed distal end of the mesh structure; is a round tubular body of the stent, the expansion of the distal end was flared outwardly.

[0006] 优选的,所述支架远端的网状闭合结构的每个网格外接圆直径为I毫米-3毫米,供导丝穿过,即网状闭合结构的网眼外接圆直径为1_3_。 Each grid circumscribed circle diameter [0006] Preferably, the distal end of the stent mesh structure is closed I mm to 3 mm, for a guide wire through, i.e. the circumscribed circle diameter mesh net structure is closed 1_3_.

[0007] 优选的,所述支架主体远端的网状闭合结构倾斜形成不同的角度,即网状闭合结构所在平面与圆管状的支架主体的轴线成锐角,以配合不同形态和角度的动脉瘤。 [0007] Preferably, the mesh stent body distal end closure structure is formed inclined at different angles, i.e., the plane with the axis of the stent mesh structure closed circular pipe body at an acute angle to the aneurysm with different forms and angles .

[0008] 优选的,所述支架主体的近端尾部设置一个以上金属标记物。 [0008] Preferably, the proximal end of the stent main body is provided aft of the more than one metal label.

[0009] 优选的,所述支架主体的网状结构为镂空切割或丝状材料编织。 [0009] Preferably, the mesh structure of the stent is a hollow body cut or filamentary woven material.

[0010] 优选的,本发明的血管支架为自弹式或球膨式。 [0010] Preferably, the blood vessel stent of the present invention is a self-expanding elastic type or a ball.

[0011] 优选的,所述支架主体远端的网状封闭结构设置一个以上金属标记物。 [0011] Preferably, the mesh stent body distal end closure structure is provided above a metal label.

[0012] 优选的,所述支架主体远端的网状闭合结构外沿设置环形金属丝,提高网状闭合结构的稳定性。 [0012] Preferably, the mesh of the stent body distal end closure structure provided with an annular outer edge of a wire, a mesh to improve the stability of the closure structure.

[0013] 本发明血管支架的支架主体为钛丝、钨丝、镍钛合金丝、钽丝、不锈钢丝、金合金丝的任一种或任两种组成的复合材料。 [0013] The stent body is a stent according to the present invention, titanium wire, and tungsten wire, Nitinol wire, tantalum wire, stainless steel wire, the gold alloy wire or any of a composite of two thereof. 或选择可吸收材料或医用材料,如:聚碳酸酯、聚酸酐共聚物、凝胶或镁合金。 Absorbent material or may be selected or medical materials, such as: polycarbonate, polyanhydride copolymer, a gel or a magnesium alloy.

[0014] 本发明同时提供该支架的应用,其用于脑动脉分叉处动脉瘤。 [0014] The present invention also provides the application of the stent, for cerebral artery bifurcation aneurysm.

[0015] 本发明的支架释放时,将微导丝通过网状闭合结构的网格,置于分叉处的动脉分支内,将支架沿着导丝送到动脉分叉处的动脉瘤口,释放支架。 [0015] When the stent of the present invention, release of the micro guide wire through the mesh grid structure closed and placed in the arterial branch of the bifurcation, the stent to the aneurysm mouth artery bifurcation along the guide wire, eluting stent.

[0016] 本发明血管支架与导引导丝、输送微导管、输送杆、导引导管配合使用,均为本领域技术人员公知的现有技术。 [0016] The present invention is a vascular stent and guide wire, the delivery microcatheter feed rod, with the use of the guiding catheter, are well known to those skilled in the prior art.

[0017] 本发明的血管支架主体具有收缩性,释放状态下外形为网状圆筒形,与动脉瘤处的脑动脉血管内壁相适配,输送状态下收缩固定于微导管内,并在导引导丝的导引下经导引导管输送至动脉分叉的动脉瘤处,释放用于治疗动脉瘤。 [0017] The vascular stent of the present invention has a main body shrinkage, the released state to mesh cylindrical outer shape, the inner wall of the blood vessel at the cerebral artery aneurysm adapted, it is fixed to the contracted delivery state within a microcatheter and the guide the guide wire is guided through the guiding catheter to the delivery of the artery bifurcation aneurysm, the release for the treatment of aneurysms.

[0018] 所述远端的网状闭合结构在释放状态下具有封堵动脉瘤血管壁开口的封堵面,为了提高封堵效果,封堵面具有与血管匹配的倾斜角度。 [0018] The distal end of the mesh structure having a sealing surface closing the aneurysm occlusion of the vessel wall opening in the released state, in order to improve sealing effect, the blocking surface having a tilt angle of the blood vessel matches.

[0019] 本发明的积极效果在于: [0019] The positive effect of the present invention:

(I)支架主体与动脉血管内壁相适配,远端向外扩张呈扩口形可以在分叉处增大对血管的附着力,防止支架脱落,并很好地封堵动脉瘤的口部。 (I) the arterial vessel wall and the stent body adapted to the distal end was flared outward expansion can increase the adhesion at the bifurcation of a blood vessel to prevent stent loss, and a good closure of the mouth of the aneurysm.

[0020] (2)支架远端为网状闭合结构可直接封闭于动脉瘤口部,这优于交叉植入两个支架治疗分叉部脑动脉瘤,使弹簧圈栓塞治疗更加简便。 [0020] (2) the distal end of the stent is a reticulated structure enclosing the closed aneurysm mouth portion, which is superior to cross two stent implantation bifurcation aneurysm, embolization coil spring easier.

[0021] (3)支架远端网状封闭结构倾斜形成一定的角度,与血管的倾斜角度相匹配,可以用于治疗不同角度的分叉处动脉瘤,并且能够更好地封闭动脉瘤腔。 [0021] (3) the distal end of the mesh stent closure structure a certain inclination angle, the inclination angle of the blood vessel matches, different angles can be used in the treatment of bifurcation aneurysm, and better able to enclose the aneurysm cavity.

[0022] (4)近端开放,使得血液可以正常通过支架进入远端分支血管。 [0022] (4) an open proximal end, a distal end such that the blood can normally enter through the branch vessel stent.

[0023] (5)近端和远端闭合结构的金属标记物便于定位放置位点,当释放支架时,让支架远端的不透X线的金属标记物位于动脉分叉处动脉瘤口部,固定支架输送杆,逐渐回撤微导管,支架便可以释放于适当位置。 [0023] (5) Metal markers proximal and distal closure structure facilitates positioning of placement site, when the stent is released, so that the metal X-ray opaque markers distal end of the stent is located artery bifurcation aneurysm mouth the fixing bracket feed rod, gradually retracement microcatheter can release the stent in place. 此时连接电源,使用电解脱将输送杆从支架解脱并撤出输送杆。 At this time, the power supply is connected, an electric release the stent from the delivery and release lever feed rod withdrawal.

附图说明 BRIEF DESCRIPTION

[0024] 图1为现有技术治疗动脉分叉处动脉瘤方法的示意图; [0024] FIG. 1 is a schematic arterial aneurysm prior art method of treating arterial bifurcation;

图2为本发明实施例1的结构示意图; Example 1 FIG. 2 a schematic structural diagram of the embodiment of the present invention;

图3为实施例1释放后封闭动脉瘤口部的示意图; 3 is a schematic view of the closed mouth portion of the aneurysm after releasing Example 1 embodiment;

图4为实施例2的结构示意图; FIG 4 is a schematic structural diagram of the second embodiment;

图5为实施例2释放后封闭动脉瘤口部的示意图; 5 is a schematic view of Embodiment 2 of the aneurysm mouth closure portion after releasing the embodiment;

图6为实施例3的结构示意图; FIG 6 is a schematic structural diagram of embodiment 3;

图7为实施例3释放后封闭动脉瘤口部的示意图; 7 is a schematic view of embodiment aneurysm mouth portion closed after releasing Example 3;

图8为本发明使用时释放以及弹簧圈栓塞过程的示意图; 附图中,I支架主体,2网状闭合结构,3微导管,4输送杆,5金属标记物,6环形金属丝,7第一个支架,8第二个支架,9弹簧圈,10动脉瘤,11微导丝。 Figure 8 is released, and a schematic view of the present invention coiling process; in the drawings, the I stent body, closed mesh structure 2, 3 microcatheter feed rod 4, a metal marker 5, endless wire 6, 7 of a bracket, the second bracket 8, the spring ring 9, the aneurysm 10, 11 micro guidewire.

具体实施方式 Detailed ways

[0025] 为使本发明的上述目的、特征和优点能够更加明显易懂,下面将结合本发明实施例中的附图和具体实施方式,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。 [0025] For the above-described objects, features and advantages of the invention more comprehensible, embodiments of the present invention in conjunction with the following drawings and specific embodiments embodiments, the technical solutions in the embodiments of the present invention will be clearly and completely described in obviously, the described embodiments are merely part of embodiments of the present invention rather than all embodiments. 基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。 Based on the embodiments of the present invention, all other embodiments of ordinary skill in the art without any creative effort shall fall within the scope of the present invention.

[0026] 实施例1 [0026] Example 1

如图2所示,实施例1包括支架主体1,所述支架主体I为网状结构,所述支架主体I的近端开放,远端为网状闭合结构2 ;所述支架主体I为圆管状,远端向外扩张呈扩口形。 As shown, Example 1 1 2 includes a bracket body, the bracket body I is a mesh structure, said open proximal end of the stent body I, the distal end of the mesh structure 2 is closed; the stent body in a circular I tubular, expanded outward distal end was flared.

[0027] 所述支架主体I远端的网状闭合结构2的每个网格外接圆直径为l_3mm。 The [0027] I stent body distal end closure structure each grid mesh circumscribed circle diameter of 2 l_3mm.

[0028] 所述支架主体I远端的网状闭合结构2外沿设置环形金属丝6,增强网状闭合结构2的稳定性。 [0028] I the stent body distal end closure structure 2 mesh wire 6 provided with an annular outer edge, enhance the stability of the mesh structure 2 is closed.

[0029] 所述支架主体I近端尾部设置两个金属标记物5。 [0029] The tail portion disposed proximal stent body I two metal marker 5.

[0030] 实施例1支架为自弹式或球膨式。 [0030] Example 1 is a stent self-expanding elastic type or ball embodiment.

[0031] 所述支架主体I远端的网状闭合结构2设置两个金属标记物5。 The [0031] I distal end of the stent body mesh structure 2 is provided with two closed metal marker 5.

[0032] 本发明的支架主体I为镍钛合金丝编织而成。 [0032] The stent body I of the invention is woven nitinol wire.

[0033] 本发明顶端血管支架与导引导丝、微导管、输送杆以及导引导管配合使用,均为本领域技术人员公知的现有技术。 [0033] Vascular stents to the top of the guide the guide wire of the present invention, the microcatheter, the guiding catheter with the feed rod and use, are well known to those skilled in the prior art.

[0034] 本发明血管支架的支架主体I具有收缩性,释放状态下外形为网状圆筒形,与动脉瘤10处的脑动脉血管内壁相适配,输送状态下收缩固定于微导管内,并在微导丝的导引下输送至动脉分叉的动脉瘤处。 [0034] The stent body blood vessel stent of the present invention having a shrinkability I, the released state for the mesh cylindrical outer shape, the inner wall of the blood vessel at the cerebral artery aneurysm 10 adapted shrinkage fixed within the microcatheter delivery state, delivered to the aneurysm and the artery at the bifurcation of the guide micro guidewire.

[0035] 如图3所示,所述支架主体I远端的网状闭合结构2在释放状态下具有封堵动脉瘤10血管壁开口的封堵面。 [0035] As shown in FIG 3, the distal end of the stent body I with a mesh structure 2 closes occluder blocking surface of the vessel wall 10 aneurysm opening is in the released state.

[0036] 实施例2 [0036] Example 2

如图4所示,实施例2与实施例1不同之处在于支架远端的网状闭合结构2所在平面与支架主体I的轴线成75.58°锐角。 4, Example 2 and Example 1 except that the distal end of the mesh stent axis closing an acute angle structure 2 is 75.58 ° and the plane of the holder body I.

[0037] 如图5所示,支架主体I的远端网状封闭结构2在支架处于垂直位时呈倾斜状,与血管的倾斜角度相匹配,能够更好地封闭动脉瘤口。 [0037] As shown, the distal end of the mesh stent main body 2 has a closed structure I is inclined when the stand is in the vertical position, the inclination angle of the blood vessel matches better closing the aneurysm mouth 5. 当瘤口处分支动脉夹角为75.58°(90° -14.42° )时,实施例2远端网状闭合结构2所在平面与支架主体的轴线的夹角为75.88° (90° -14.12° ),提高封闭端对瘤口的贴合封闭性。 When the angle between the axis of the artery aneurysm mouth disposition angle of 75.58 ° (90 ° -14.42 °), Example 2 where the distal end of the mesh structure 2 is closed with the plane of the holder body 75.88 ° (90 ° -14.12 °) improve the closed end of the closed mouth tumor bonded.

[0038] 实施例3 [0038] Example 3

如图6所示,实施例3与实施例1不同之处在于网状闭合结构2所在平面与支架主体 6, Example 3 and Example 1 except that the plane of the mesh structure 2 is closed with the holder body

I的轴线成67.22°锐角。 I, 67.22 ° axis at an acute angle.

[0039] 如图7所示,网状闭合结构2在支架处于垂直位时呈倾斜状,与血管的倾斜角度相匹配,能够更好地封闭动脉瘤口。 [0039] As shown in FIG 7, the web 2 has a closed configuration when the stent is in the inclined vertical position, the inclination angle of the vessel match better closing the aneurysm mouth. 当瘤口处分支动脉夹角为67.22° (90° -22.78° )时,实施例3远端网状闭合结构2所在平面与支架主体的轴线的夹角为66.48 °(90° -23.52° ),提高封闭端对瘤口的贴合封闭性。 When the angle between the axis of the artery aneurysm mouth disposition angle of 67.22 ° (90 ° -22.78 °), Example 3, the distal end plane of the mesh structure 2 is closed with the bracket body is 66.48 ° (90 ° -23.52 °) improve the closed end of the closed mouth tumor bonded.

[0040] 支架释放方法 [0040] The method of releasing the stent

如图8所示,在本发明血管支架释放时,首先将微导丝11送入动脉分叉处的一个分支动脉,再沿着微导丝11将包含支架的微导管3送至动脉分叉处,撤出微导丝11。 As shown, when the release of the stent of this invention, the guide wire 11 is first fed to a micro branch artery bifurcation artery 8, the guide wire 11 and then along microtubules microcatheter comprising 3 to the artery bifurcation stent , the micro-guidewire 11 withdrawal. 然后将支架远端向前推送置于分叉处动脉瘤口处,根据支架远端的金属标记物5加以判断位置是否正确;再固定输送杆4,缓慢回撤微导管3,支架便逐渐释放于动脉瘤10 口处,支架远端的网状封闭结构2就顶在动脉瘤口。 The stent is then pushed forwardly disposed distal of the aneurysm mouth bifurcation, the distal end of the stent determines the correct position of the metal marker 5 to be in accordance with; feed rod 4 and then fixed, slowly retracement microcatheter 3, the stent will gradually release in aneurysm 10, the distal end of the mesh structure of the stent 2 is closed on the top mouth of the aneurysm. 根据支架远端的金属标记物5的位置,在支架未完全释放时略微调节支架的位置,待位置优良后再完全释放支架,并通电解脱支架,撤出输送杆4和微导管3。 The position of the distal end of the stent metal marker 5 is slightly adjusted while the stent is not fully released position of the stent, the location to be excellent after the stent fully released and the stent release energized, the withdrawal of the microcatheter 4 and feed rod 3. 随后,导入微导丝11到分支血管,将弹簧圈沿着微导丝送到动脉瘤腔内进行弹簧圈栓塞治疗过程。 Then, as the micro-guidewire into the branch vessel 11, the spring coil to the aneurysm cavity along the micro-guidewire coil embolization procedure. 这样的操作简化了当前植入两个支架后再将微导丝和微导管伸入动脉瘤腔内进行弹簧圈栓塞的技术。 This simplifies the operation of the current art stent implantation after two micro guidewire and microcatheter lumen for extending into the aneurysm embolization coils. 同时,支架顶端网状封闭结构形成不同的倾斜角度,与分叉处的血管角度相匹配,可以更好地封堵动脉瘤口部。 Meanwhile, the mesh stent to the top closure structure is formed of a different inclination angle to match the angle of bifurcation of the blood vessel, the aneurysm can better block the mouth portion. 本发明支架主体远端向外扩张呈扩口形,增加了支架主体在动脉分叉处附着血管壁的力,使支架不易脱落。 The present invention is expandable stent body distal end was flared outwardly to increase the adhesion force of the stent body at the vascular wall artery bifurcation, the stent not falling.

Claims (9)

  1. 1.一种用于脑动脉分叉处动脉瘤的血管支架,其特征在于,包括:支架主体(1),所述支架主体(I)为网状结构,所述支架主体(I)的近端开放,远端设置网状闭合结构(2);所述支架主体(I)为圆管状,远端向外扩张呈扩口形。 Near holder body (1), said holder body (I) is a mesh structure, said holder body (I) is: 1. A cerebral artery bifurcation aneurysm stent for a blood vessel, characterized by comprising open end, a closed distal end arranged reticular structure (2); said holder body (I) is a circular tube, the distal end was flared outwardly expanded.
  2. 2.根据权利要求1所述的血管支架,其特征在于,所述支架主体(I)远端的网状闭合结构(2)的每个网格外接圆直径为l_3mm0 The stent of claim 1, wherein said holder body (I) of the distal end of the mesh structure of the closure (2) of the circumscribed circle diameter of each mesh l_3mm0
  3. 3.根据权利要求1所述的顶端覆膜支架,其特征在于,所述网状闭合结构(2)所在平面与支架主体(I)的轴线成锐角。 The top of the stent graft according to claim 1, characterized in that the axis of the mesh closure structure (2) plane of the holder body (I) is an acute angle.
  4. 4.根据权利要求1所述的顶端覆膜支架,其特征在于,所述支架主体(I)近端尾部设置一个以上金属标记物(5)。 According to claim 1 to the top of the stent-graft, wherein said stent body (I) a proximal end disposed above the tail of a metal marker (5).
  5. 5.根据权利要求1所述的顶端覆膜支架,其特征在于,所述支架主体(I)的网状结构为镂空切割或丝状材料编织。 According to claim 1 to the top of the stent-graft, wherein said stent body (I) is a hollow mesh structure woven material cut or filamentary.
  6. 6.根据权利要求1所述的顶端覆膜支架,其特征在于,其为自弹式或球膨式。 The top of the stent graft according to claim 1, characterized in that it is a self-expanding elastic type or a ball.
  7. 7.根据权利要求1所述的顶端覆膜支架,其特征在于,所述支架主体(I)远端的网状闭合结构(2)设置一个以上金属标记物(6)。 The top of the stent graft according to claim 1, wherein said holder body (I) of the distal end of the mesh structure of the closure (2) is provided above a metallic marker (6).
  8. 8.权利要求1-7任一项所述的顶端覆膜支架的应用,其特征在于,用于脑动脉分叉处动脉瘤。 Application of the top of the stent-graft according to any one of claims 1-7 claim 1, characterized in that, for cerebral artery bifurcation aneurysm.
  9. 9.根据权利要求8所述的应用,其特征在于,支架释放时将微导丝通过网状闭合结构的网格,置于分叉处的动脉分支内,将支架导引到分叉处加以释放。 9. The use of claim them in claim 8, wherein, when the stent is released by the micro-guide wire mesh grid structure closed and placed in the arterial branch of the bifurcation, the stent is guided to the bifurcation freed.
CN 201510436364 2015-07-23 2015-07-23 Vascular stent for treating cerebral artery bifurcation aneurysms and its application CN105055047A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050096728A1 (en) * 2003-10-29 2005-05-05 Marc Ramer Neck covering device for an aneurysm
US20110245862A1 (en) * 2006-08-17 2011-10-06 Tsunami Innovations Llc Isolation devices for the treatment of aneurysms
CN102762156A (en) * 2009-09-04 2012-10-31 帕尔萨维斯库勒公司 Systems and methods for enclosing an anatomical opening
CN102764170A (en) * 2012-07-18 2012-11-07 吕文峰 Intravascular stent with complex functions
CN103237526A (en) * 2010-12-06 2013-08-07 科维蒂恩有限合伙公司 Vascular remodeling device
CN104736071A (en) * 2012-08-22 2015-06-24 菲诺克斯有限公司 Implants
CN204814292U (en) * 2015-07-23 2015-12-02 高不郎 A top tectorial membrane support for cerebral artery crotch aneurysm

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050096728A1 (en) * 2003-10-29 2005-05-05 Marc Ramer Neck covering device for an aneurysm
US20110245862A1 (en) * 2006-08-17 2011-10-06 Tsunami Innovations Llc Isolation devices for the treatment of aneurysms
CN102762156A (en) * 2009-09-04 2012-10-31 帕尔萨维斯库勒公司 Systems and methods for enclosing an anatomical opening
CN103237526A (en) * 2010-12-06 2013-08-07 科维蒂恩有限合伙公司 Vascular remodeling device
CN102764170A (en) * 2012-07-18 2012-11-07 吕文峰 Intravascular stent with complex functions
CN104736071A (en) * 2012-08-22 2015-06-24 菲诺克斯有限公司 Implants
CN204814292U (en) * 2015-07-23 2015-12-02 高不郎 A top tectorial membrane support for cerebral artery crotch aneurysm

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