CN113288535A - 一种颅内血管支架 - Google Patents
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Abstract
本发明公开了一种颅内血管支架,血管支架由一根显影丝和若干骨架丝编织而成,沿其轴向依次为近端区、工作区和远端区;骨架丝从近端区端部开始螺旋延伸至远端区末端,再回折并螺旋延伸至近端区末端,骨架丝上下交错编织形成菱形网孔;近端区和远端区均呈喇叭状,近端区末端向内翻折形成翻折区;显影丝以与骨架丝相同的方式穿插入骨架丝编织形成的框架中,共同形成颅内血管支架。本发明中的颅内血管支架两端径向支撑力得以提升,解决了支架在血管中受血流冲击而产生位移的问题。而且,本发明中的支架两端为闭环结构,可避免出现缩口以及编织丝分开而扎破血管壁的问题。
Description
技术领域
本发明涉及一种植入人体内的医疗器械,具体涉及一种颅内血管支架。
背景技术
颅内动脉瘤是病死率、致残率极高的脑血管疾病之一。颅内动脉瘤破裂,导致蛛网膜下隙出血,严重危害患者的生命健康。如果蛛网膜下隙出血发生,未经治疗的致死率接近50%,治疗后的致残率高达60%。血流动力学被认为是颅内动脉瘤发生、进展好和破裂的一个主要因素。颅内动脉瘤载瘤动脉的重建、恢复动脉瘤内及载瘤动脉的生理血流动力学,是治疗颅内动脉瘤的终点目标。
目前,治疗颅内动脉瘤的方法主要有介入动脉瘤弹簧圈栓塞术、动脉瘤载瘤动脉重建和导向等。随着介入材料的不断发展,动脉瘤栓塞技术不断的提高,使得颅内动脉瘤介入治疗的安全性和有效性得到提高。血流导向装置是一种低网孔率和高金属覆盖率的支架,具有血流动力学和生物学效应,可改变血流方向促进动脉瘤内血流淤带和血栓形成,进而依靠瘤劲的内膜化起到修复载瘤动脉的作用。
由于脑血管细小且形态复杂,例如,在颈内动脉海绵窦段血管弯曲夹角为20°~90°,弯曲半径为2mm~4.5mm,所以需要支架具有足够的顺应性,顺应迂曲的脑血管。目前的颅内血管支架技术如下:
在中国公布的专利号:CN205515056U的发明专利“一种支架”中,该发明由一种多根细丝通过编织机交叉编织而成的支架,两端为开放式结构,容易分叉和划伤血管壁;两端无锚定结构。
在中国公布的专利号:CN104665964A的发明专利“一种编织支架”中,该发明由多根细丝与粗丝编织而成。其整个支架的ppi不一样,两端疏中间密的结构。
在中国公布的专利号:CN105816215A的发明专利“一种血流导向及其编织装置和使用方法”中,该发明提供了一种局部血流导向装置及其该装置的制备和使用方法,主要解决的技术问题是用于隔绝宽颈动脉瘤与载瘤动脉血管,同时保证侧支血管血流的畅通。该发明的局部血流导向装置由骨架、局部密网区、端部连接筋及显影标记组成。
现有技术中的公开的支架两端无锚定结构,受血流冲击会产生位移现象;并且两端的编织丝容易分开,分开后的编织丝会扎破血管壁,同时,由于两端无支撑力容易塌陷缩口,导致血流增大。
发明内容
针对上述现有技术,本发明提供一种颅内血管支架,以解决现有技术中血管支架容易移位以及会扎破血管壁的问题。
为了达到上述目的,本发明所采用的技术方案是:提供一种颅内血管支架,颅内血管支架由一根显影丝和若干骨架丝编织而成,沿其轴向依次为近端区、工作区和远端区;骨架丝从近端区端部开始螺旋延伸至远端区末端,再回折并螺旋延伸至近端区末端,骨架丝上下交错编织形成菱形网孔;近端区和远端区均呈喇叭状,近端区末端向内翻折;显影丝以与骨架丝相同的方式穿插入骨架丝编织形成的框架中,共同构成颅内血管支架。
本发明采取上述技术方案的有益效果是:
在上述技术方案的基础上,本发明还可以做如下改进。
进一步,近端区和远端区的扩口角度为10~25°。
进一步,近端区和远端区的长度均为1~3mm。
进一步,菱形网孔的面积小于0.1mm2。
进一步,骨架丝在编织过程中其编织角度为50~80°。
进一步,骨架丝和显影丝的直径为10~40μm。
进一步,骨架丝和显影丝在远端区末端的回折半径不超过0.1mm。
进一步,近端区末端向内翻折部分的长度不超过近端区长度的一半。
进一步,近端区末端向内翻折翻折半径不超过0.1mm。
本发明的有益效果是:本发明中的颅内血管支架两端均呈喇叭状,支架两端的径向支撑力得以提升,能够有效解决支架在血管中受血流冲击而产生位移的问题。而且,本发明中的支架两端为闭环结构,可避免出现缩口以及编织丝分开而扎破血管壁的问题。再者,支架的近端区为双层结构,支架在导管中推送时能有效传递力而支架本身不变形,并且释放后的支架在血管中的径向支撑力大于单层的径向支撑力,有效的固定支架在动脉瘤处不发生位移。
附图说明
图1为本发明颅内血管支架的主视图;
图2为工作区的放大图;
图3为远端区的放大图;
图4为工作区的局部放大图;
图5为近端区的放大图;
图6为近端区/远端区的加工示意图;
其中,1、近端区;2、工作区;3、远端区;4、骨架丝;5、显影丝;6、菱形网孔;7、翻折区;8、扩口工装。
具体实施方式
下面结合附图对本发明的具体实施方式做详细的说明。
本发明的实施例中,如图1~4所示,提供一种颅内血管支架,本发明中的颅内血管支架由一根显影丝5和若干骨架丝4编织而成,沿其轴向依次为近端区1、工作区2和远端区3。骨架丝4的直径为10~40μm,采用弹性材料或记忆材料制成,包含但不限于金属、合金、高分子材料中的一种或多种;金属或合金材料包含但不限于不锈钢、镍钛合金或钴铬合金;高分子材料包含但不限于聚乙烯、聚甲醛、聚氨酯、聚酯、聚四氟乙烯、氟化乙烯丙烯共聚物、聚酰胺、聚酰亚胺或尼龙。在编织颅内血管支架时,骨架丝4从近端区1的端部开始螺旋延伸(图2中处于正弦状态的骨架丝41)至远端区3的末端,再回折并螺旋延伸(图2中处于余弦状态的骨架丝42)至近端区1末端,骨架丝4上下交错编织形成菱形网孔6。为了使血管支架末端平滑,骨架丝4和在远端区3末端的回折半径不超过0.1mm。显影丝5的直径为10~40μm,采用铂铱合金制成;如图2所示,显影丝5采用与骨架丝4相同的方式(51为处于正弦状态的显影丝5,52为处于余弦状态的显影丝5)穿插入骨架丝4编织形成的框架中,共同形成颅内血管支架的基本框架。
在编织好颅内血管支架基本框架后,使用扩口工装8对基本框架两端进行处理,形成喇叭状的近端区1和远端区3,近端区1和远端区3的扩口角度D为10~25°(图3),远端区的长度为1~3mm。由于骨架丝4和显影丝5的两头端部均位于近端区1末端,为了避免出现支架缩口以及扎破血管壁的问题,在近端区1扩口完成后,需要将其末端向内翻折以形成翻折区7(图5),翻折后近端区1的长度为1~3mm,而翻折区7的长度不超过近端区1长度的一半。同样,为了使血管支架末端平滑,翻折区7向内翻折的翻折半径不超过0.1mm。
在本发明的一种优选实施例中,在编织血管支架基本框架时,控制编织角度A为50~80°(图4),这是因为编织角度如果过小,支架不能撑起血管,如果编织角度过大,支撑力过大,支架在其他辅助器械(导管)中的推送阻力增大,容易造成医疗事故。另外,控制菱形网孔6的面积不超过0.1mm2,这是因为网格面积越小,血液通过细小的网格形成膜,从而血流不会进入动脉瘤,血液沿着支架内壁流向其他血管,实现血流导向的目的,防止动脉瘤受血流冲击爆破使人致死。
本发明中的支架在使用时,推送装置作用于近端区1,在推力作用下将血管支架推送到病变部位,由于支架的近端区为双层结构,支架在导管中推送时能有效传递力而支架本身不变形;然后释放支架,释放后的支架近端区1和远端区3依靠扩张力锚定在血管中,有效解决了支架在血管中受血流冲击而产生位移的问题。
虽然结合附图对本发明的具体实施方式进行了详细地描述,但不应理解为对本专利的保护范围的限定。在权利要求书所描述的范围内,本领域技术人员不经创造性劳动即可作出的各种修改和变形仍属本专利的保护范围。
Claims (9)
1.一种颅内血管支架,其特征在于:所述血管支架由一根显影丝(5)和若干骨架丝(4)编织而成,沿其轴向依次为近端区(1)、工作区(2)和远端区(3);所述骨架丝(4)从近端区(1)端部开始螺旋延伸至所述远端区(3)末端,再回折并螺旋延伸至近端区(1)末端,骨架丝(4)上下交错编织形成菱形网孔(6);所述近端区(1)和远端区(3)均呈喇叭状,所述近端区(1)末端向内翻折形成翻折区(7);所述显影丝(5)以与骨架丝(4)相同的方式穿插入所述骨架丝(4)编织形成的框架中,共同形成颅内血管支架。
2.根据权利要求1所述的颅内血管支架,其特征在于:所述近端区(1)和远端区(3)的扩口角度(D)为10~25°。
3.根据权利要求2所述的颅内血管支架,其特征在于:所述近端区(1)和远端区(3)的长度均为1~3mm。
4.根据权利要求1所述的颅内血管支架,其特征在于:所述菱形网孔(6)的面积小于0.1mm2。
5.根据权利要求1所述的颅内血管支架,其特征在于:所述骨架丝(4)在编织过程中其编织角度(A)为50~80°。
6.根据权利要求1所述的颅内血管支架,其特征在于:所述骨架丝(4)和显影丝(5)的直径为10~40μm。
7.根据权利要求1所述的颅内血管支架,其特征在于:所述骨架丝(4)和显影丝(5)在所述远端区(3)末端的回折半径不超过0.1mm。
8.根据权利要求1所述的颅内血管支架,其特征在于:所述翻折区(7)的长度不超过近端区(1)长度的一半。
9.根据权利要求8所述的颅内血管支架,其特征在于:所述翻折区(7)向内翻折的翻折半径不超过0.1mm。
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114767202A (zh) * | 2022-04-24 | 2022-07-22 | 深圳市顺美医疗股份有限公司 | 一种颅内密网支架及其制备方法 |
WO2023241306A1 (zh) * | 2022-06-15 | 2023-12-21 | 微创神通医疗科技(上海)有限公司 | 一种血管支架 |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6245100B1 (en) * | 2000-02-01 | 2001-06-12 | Cordis Corporation | Method for making a self-expanding stent-graft |
US20090210047A1 (en) * | 2008-02-18 | 2009-08-20 | Aga Medical Corporation | Stent graft for reinforcement of vascular abnormalities and associated method |
US20100016940A1 (en) * | 2008-01-10 | 2010-01-21 | Telesis Research, Llc | Biodegradable self-expanding prosthesis |
US20130073026A1 (en) * | 2011-09-20 | 2013-03-21 | Aga Medical Corporation | Device and method for treating vascular abnormalities |
US20130317589A1 (en) * | 2011-05-23 | 2013-11-28 | Lazarus Effect, Inc. | Retrieval systems and methods for use thereof |
CN204766039U (zh) * | 2015-05-04 | 2015-11-18 | 苏州茵络医疗器械有限公司 | 一种显影支架 |
CN204798068U (zh) * | 2013-10-12 | 2015-11-25 | 微创神通医疗科技(上海)有限公司 | 血管重建装置及输送系统 |
CN205144806U (zh) * | 2015-11-17 | 2016-04-13 | 微创神通医疗科技(上海)有限公司 | 一种支架 |
CN205515056U (zh) * | 2016-03-15 | 2016-08-31 | 微创神通医疗科技(上海)有限公司 | 一种支架 |
CN106073957A (zh) * | 2016-06-20 | 2016-11-09 | 常州乐奥医疗科技股份有限公司 | 一种新型编织血管支架 |
CN210872240U (zh) * | 2019-07-17 | 2020-06-30 | 珠海通桥医疗科技有限公司 | 可完全回收的编织支架 |
CN111658251A (zh) * | 2020-06-09 | 2020-09-15 | 薛承景 | 一种血流导向型血管支架 |
CN112155814A (zh) * | 2020-09-27 | 2021-01-01 | 艾柯医疗器械(北京)有限公司 | 低致栓颅内血管编织支架及其处理方法 |
CN112386364A (zh) * | 2020-11-10 | 2021-02-23 | 苏州中天医疗器械科技有限公司 | 混合编织支架 |
-
2021
- 2021-05-28 CN CN202110592286.7A patent/CN113288535B/zh active Active
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6245100B1 (en) * | 2000-02-01 | 2001-06-12 | Cordis Corporation | Method for making a self-expanding stent-graft |
US20100016940A1 (en) * | 2008-01-10 | 2010-01-21 | Telesis Research, Llc | Biodegradable self-expanding prosthesis |
US20090210047A1 (en) * | 2008-02-18 | 2009-08-20 | Aga Medical Corporation | Stent graft for reinforcement of vascular abnormalities and associated method |
CN101945623A (zh) * | 2008-02-18 | 2011-01-12 | Aga医药有限公司 | 用于修补血管畸形的覆膜支架及相关方法 |
US20130317589A1 (en) * | 2011-05-23 | 2013-11-28 | Lazarus Effect, Inc. | Retrieval systems and methods for use thereof |
US20130073026A1 (en) * | 2011-09-20 | 2013-03-21 | Aga Medical Corporation | Device and method for treating vascular abnormalities |
CN204798068U (zh) * | 2013-10-12 | 2015-11-25 | 微创神通医疗科技(上海)有限公司 | 血管重建装置及输送系统 |
CN204766039U (zh) * | 2015-05-04 | 2015-11-18 | 苏州茵络医疗器械有限公司 | 一种显影支架 |
CN205144806U (zh) * | 2015-11-17 | 2016-04-13 | 微创神通医疗科技(上海)有限公司 | 一种支架 |
CN205515056U (zh) * | 2016-03-15 | 2016-08-31 | 微创神通医疗科技(上海)有限公司 | 一种支架 |
CN106073957A (zh) * | 2016-06-20 | 2016-11-09 | 常州乐奥医疗科技股份有限公司 | 一种新型编织血管支架 |
CN210872240U (zh) * | 2019-07-17 | 2020-06-30 | 珠海通桥医疗科技有限公司 | 可完全回收的编织支架 |
CN111658251A (zh) * | 2020-06-09 | 2020-09-15 | 薛承景 | 一种血流导向型血管支架 |
CN112155814A (zh) * | 2020-09-27 | 2021-01-01 | 艾柯医疗器械(北京)有限公司 | 低致栓颅内血管编织支架及其处理方法 |
CN112386364A (zh) * | 2020-11-10 | 2021-02-23 | 苏州中天医疗器械科技有限公司 | 混合编织支架 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114767202A (zh) * | 2022-04-24 | 2022-07-22 | 深圳市顺美医疗股份有限公司 | 一种颅内密网支架及其制备方法 |
WO2023241306A1 (zh) * | 2022-06-15 | 2023-12-21 | 微创神通医疗科技(上海)有限公司 | 一种血管支架 |
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