CN107970082B - 用于编织支架的膨胀环 - Google Patents
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Abstract
本发明题为“用于编织支架的膨胀环”。本发明公开了一种编织支架系统,该编织支架系统包括支架主体,该支架主体具有由多个编织构件形成的管腔,其中在多个编织构件之间形成空隙;以及连接到支架主体的管腔的第一膨胀环。第一膨胀环可包括由多个互连的支撑组件限定的框架,该多个互连的支撑组件被选择性地定位成向支架主体施加向外膨胀的径向力,每个支撑组件可包括多个腿部,该多个腿部在第一交叉点处接合,并且在与第一交叉点相对的第二交叉点处连接到其他互连的支撑组件中的一个支撑组件。每个支撑组件可包括机械地连接到支架主体的空隙中的一个或多个空隙的爪部分,使得框架施加支架的向外径向膨胀力,以便于支架的使用和递送。
Description
技术领域
本公开整体涉及治疗患者脉管系统中的某些缺陷,并且更具体地,涉及到患者脉管系统中的治疗部位的自膨胀编织支架。
背景技术
支架被理解为管状增强件,其可插入血管中以在血管内提供开放路径。支架已广泛用于闭塞性心脏动脉的血管内血管成形术治疗,其中支架可在血管成形术手术之后插入以防止动脉再狭窄。通常通过使用促使支架打开的递送装置部署支架,目的是增强动脉壁并在动脉中提供畅通的通路,从而防止再狭窄。
然而,神经血管系统的弱点和非线性性质限制了此类支架在手术中的适用性,例如在修复神经血管缺陷中的适用性。此外,已知的递送方法在血管闭塞手术中不太有用,特别是当要处理微小血管诸如脑中发现的那些血管时。因此,需要一种支架,该支架可与神经血管缺陷的血管闭塞治疗中的递送技术一起使用,该递送技术在神经血管缺陷附近提供选择性增强。还需要一种减小创伤或血管破裂的风险的支架。关于这些和其他考虑,呈现下面描述的各种实施方案。
发明内容
在一些方面,本公开涉及用于递送到血管中的编织支架系统。这种系统可包括支架主体,该支架主体具有由多个编织构件形成的管腔,其中在编织构件之间形成空隙。膨胀环可机械地连接到支架主体的管腔,并且可操作以通过使其框架向支架主体施加向外膨胀的径向力来将膨胀环保持在打开状态。框架可包括在第一交叉点处接合的多个腿部,以及机械地连接到支架主体的空隙中的一个或多个空隙的爪部分。爪部分可通过穿过多个空隙延伸远离第一交叉点并终止于与第一交叉点相对的锁定机构处来将膨胀环机械地连接到空隙中的一个或多个空隙。
在某些实施方案中,爪部分可包括至少两个对准的细长构件,该细长构件在第一交叉点和锁定机构之间延伸以在两者之间形成孔隙。当爪部分将膨胀环机械地连接到支架主体时,空隙中的一个或多个空隙可穿过孔隙。框架的多个腿部还可以以非线性配置翘曲和/或取向,从而使框架抵抗压缩,使得编织支架系统自膨胀。腿部能够围绕第一交叉点旋转、枢转和/或扭转预先确定的量。
在其他实施方案中,公开了一种编织支架系统,该编织支架系统具有支架主体,该支架主体具有由多个编织构件形成的管腔,其中在多个编织构件之间形成空隙,并且该编织支架系统具有连接到支架主体的管腔的第一膨胀环。第一膨胀环可包括由多个互连的支撑组件限定的框架,所述多个互连的支撑组件被选择性地定位成向支架主体施加向外膨胀的径向力,每个支撑组件可包括多个腿部,所述多个腿部在第一交叉点处接合,并且在与第一交叉点相对的第二交叉点处连接到其他互连的支撑组件中的一个支撑组件。每个支撑组件还可包括爪部分,该爪部分机械地连接到支架主体的空隙中的一个或多个空隙。
框架的多个腿部可以以非线性配置翘曲和/或取向,从而使框架抵抗压缩,使得编织支架系统自膨胀。腿部能够围绕第一交叉点旋转、枢转和/或扭转预先确定的量。
爪部分还可通过延伸远离第一交叉点,交错穿过空隙中的至少两个空隙,并且终止于与交叉点相对的锁定机构处来将膨胀环机械地连接到管腔的内部分和外部分。锁定机构可包括能够操作以固定地连接到支架主体的空隙的T形端部或向外延伸的钩状构件。然而,解决方案不限于此,并且爪部分中的至少一个爪部分可包括多个对准的细长构件,所述细长构件在相应的第一交叉点和锁定机构之间延伸,以形成多个空隙可穿过的孔隙。
在示例实施方案中,编织构件的一个或多个编织对可穿过孔隙。锁定机构还可通过借助焊接、锡焊、压接或粘合剂粘结来接合与第一交叉点相对的对准的细长构件的端部来将膨胀环固定地连接到支架主体。然而,解决方案并非如此限制,并且锁定机构可通过借助紧固件诸如金属带和/或环接合与第一交叉点相对的对准的细长构件的端部来将膨胀环固定地连接到支架主体。此外,第一交叉点和/或第二交叉点中的至少一个交叉点可形成V形、U形或椭圆曲线。
在另一个示例实施方案中,支架主体可包括近侧端部、远侧端部以及设置在近侧端部和远侧端部之间的中心部分。第一膨胀环可设置在支架主体的远侧端部或近侧端部上,或者设置成与远侧端部或近侧端部相邻,其中互连的支撑组件的第二交叉点接合在相应的远侧端部或近侧端部处,或者与相应的远侧端部或近侧端部相邻地接合。一个或多个附加的膨胀环还可沿支架主体的中心部分和/或支架主体的相对的远侧端部或近侧端部连接到管腔,或者与支架主体的中心部分和/或支架主体的相对的远侧端部或近侧端部结合连接到管腔。
还公开了将编织支架主体部署到脉管中的方法,所述方法包括以下步骤:将多个膨胀环组装到编织支架主体的管腔,编织支架主体的管腔由多个编织构件形成,其中在多个编织构件之间形成空隙;利用编织支架主体选择性地定位每个膨胀环;每个膨胀环施加向外膨胀的径向力,从而将编织支架主体的管腔保持在打开位置,每个膨胀环包括:由多个互连的支撑组件限定的框架,所述多个互连的支撑组件包括多个腿部,所述多个腿部接合在第一交叉点处,并且在与第一交叉点相对的第二交叉点处连接到其他互连的支撑组件中的一个支撑组件,所述腿部能够围绕第一交叉点和第二交叉点扭转;以及爪部分,所述爪部分被设置成与第一交叉点和第二交叉点相对;通过使在膨胀环的相应的爪部分和相应的第一交叉点之间延伸的第一细长构件与交叉点中的一个或多个交叉点交错,并且终止于与交叉点相对的锁定机构处,将每个环的爪部分机械地连接到支架主体的内部分;以及独立于每个膨胀环平移脉管中的编织构件。
由于爪部分中的至少一个可包括第二对准构件,该第二对准构件与第一细长构件基本上对准并且在相应的第一交叉点和锁定机构之间延伸,所以方法还可包括在第一细长构件和第二细长构件与相应的第一交叉点和锁定机构之间形成孔隙;以及使编织构件的一个或多个编织对穿过该孔隙。该方法还可包括通过借助焊接、锡焊、压接、粘合剂粘结和/或紧固件接合与第一交叉点相对的第一细长构件和第二细长构件的端部来将膨胀环固定地连接到支架主体。
在结合附图阅读以下详细描述之后,本公开的其他方面和特征对于本领域普通技术人员将变得显而易见。
附图说明
现在将参考附图,这些附图不一定按比例绘制。
图1描绘了组装在管状编织支架主体的端部处的本文公开的膨胀环的一个实施方案的侧视平面图。
图2描绘了与管状编织支架主体组装在一起的本文公开的膨胀环的一个实施方案的另一个视图。
图3是图2的平面A-A的近距离视图,其示出了与管状编织支架主体组装在一起的膨胀环的某些特征。
图4A是具有支撑组件的示例性膨胀环的某些特征的侧视平面图。
图4B是具有支撑组件的示例性膨胀环的某些特征的侧视平面图。
图4C是具有支撑组件的示例性膨胀环的某些特征的侧视平面图。
图5A是在与管状编织支架主体组装在一起之前的具有多个爪的示例性膨胀环的透视图。
图5B是当与管状编织支架主体组装在一起时的图5A的示例性膨胀环的示例原型的前视平面图,其在爪的管状编织支架主体后部的横截面处示出处于压缩状态的其内管腔。
图5C是当图5B中的示例性膨胀环与管状编织支架主体组装在一起时的前视平面图,其示出在爪的横截面处处于压缩状态下的其内管腔。
图6描绘了当组装在管状编织支架主体的相应近侧端部和远侧端部处时具有多个爪的示例性膨胀环的侧视平面图。
图7是图6中的平面B-B的近距离视图,其示出了穿过具有固定附接的管状编织支架主体的空隙编排的所描绘的膨胀环中的一个膨胀环的某些特征。
图8描绘了当组装在管状编织支架主体的近侧端部和远侧端部处以及至少一个膨胀环在远侧端部和近侧端部之间沿主体放置时,具有多个爪的示例性膨胀环的侧视平面图。
图9A描绘了与管状支架主体组装在一起的示例性膨胀环的侧视平面图,其中使用管状支架主体的单个编织线对固定膨胀环的爪。
图9B描绘了与管状支架主体组装在一起的示例性膨胀环的侧视平面图,其中使用管状支架主体的两个编织线对固定膨胀环的爪。
图9C描绘了与管状支架主体组装在一起的示例性膨胀环的侧视平面图,其中使用管状支架主体的三个编织线对固定膨胀环的爪。
图10A描绘了与管状支架主体组装在一起的示例性膨胀环的近距离侧视平面图,其描绘了在第一布置中进入和离开管状支架主体的编织物的膨胀环的某些特征。
图10B描绘了与管状支架主体组装在一起的示例性膨胀环的近距离侧视平面图,其描绘了在第二布置中进入和离开管状支架主体的编织物的膨胀环的某些特征。
图10C描绘了与管状支架主体组装在一起的示例性膨胀环的近距离侧视平面图,其描绘了在第三布置中进入和离开管状支架主体的编织物的膨胀环的某些特征。
图11A描绘了与管状支架主体组装在一起的示例性膨胀环的近距离侧视平面图,其描绘了具有T形端部的实施方案。
图11B描绘了与管状支架主体组装在一起的示例性膨胀环的近距离侧视平面图,其描绘了具有钩形端部的实施方案。
图12A描绘了沿与管状支架主体组装在一起的爪的纵向截面与管状支架主体组装在一起的一个示例环的示例原型的侧视平面图。
图12B描绘了沿与管状支架主体组装在一起的爪的纵向截面与管状支架主体组装在一起的一个示例环的示例原型的侧视平面图。
具体实施方式
尽管本文详细说明了所公开的技术的示例实施方案,但是应当理解,设想了其他实施方案。因此,所公开的技术并不旨在将其范围限制为在以下描述中阐述或在附图中示出的部件的构造和布置的细节。所公开的技术能够具有其他实施方案,并且能够以各种方式实践或进行。
还必须注意的是,除非上下文清楚地指明,否则在本说明书和所附权利要求中所用的单数形式“一个”、“一种”和“所述”包括复数指代物。“包含”或“含有”或“包括”是指至少提名的化合物、元素、颗粒或方法步骤存在于组合物或制品或方法中,但不排除存在其他化合物、材料、颗粒、方法步骤,即使其他此类化合物、材料、颗粒、方法步骤具有与提名的那些相同的功能。
在描述示例实施方案时,为了清楚起见将采用术语。如本领域技术人员所理解的,每个术语旨在设想其最广泛的含义,并且包括以类似方式操作以实现类似目的的所有技术等同形式。还应当理解,提及方法的一个或多个步骤不排除在明确识别的那些步骤之间存在附加的方法步骤或中间方法步骤。方法的步骤可以以与本文所描述的不同的顺序执行,而不脱离所公开的技术的范围。类似地,还应当理解,提及在装置或系统中的一个或多个部件不排除在明确识别的那些部件之间存在附加部件或中间部件。
如本文所论述的,“受试者”或“患者”的脉管系统可以是人类的脉管系统或任何动物的脉管系统。应当理解,动物可以是各种任何适用的类型,包括但不限于哺乳动物、兽医动物、家畜动物或宠物型动物等。作为示例,动物可以是特别选择的具有与人类类似的某些特性的实验室动物(例如,鼠、狗、猪、猴等)。应当理解,例如,受试者可以是任何适用的人类患者。
编织支架可由多个细长构件(例如金属线材、聚合物纤维或材料股线)形成,并且这些构件在治疗神经血管缺陷中可非常有用。然而,当此类编织构件旨在在支架主体的管腔中自膨胀时,最初膨胀的端部的已知的激活方式尽力充分地、可靠地和完全地打开,使得最初膨胀的端部可用作锚固点。此外,已知编织支架存在大的内部摩擦,当部署到打开状态时其抵抗自膨胀编织支架的固有径向膨胀力。更具体地,相对较大的内部摩擦可使得难以打开支架的最初膨胀的端部,这导致锚固和部署的缺陷。对于通过使用递送鞘、微导管等而递送到期望的脉管位置的编织支架尤其如此,因为在闭合状态(例如压缩或压接)下,支架主体通常在编织构件和递送鞘或微导管之间表现出摩擦。
在实践中,可通过将钝的表面推向编织支架的近侧端部而将编织支架递送到特定的脉管,从而使得编织支架轴向地压缩和径向地膨胀。在递送鞘或微导管内的这种膨胀可促使向递送鞘、微导管等的内表面施加增大的法向力,从而也增大由编织支架引起的摩擦。
这些问题的已知解决方案取决于一些因素,诸如材料、尺寸、单元设计、内部摩擦以及最终使用者可靠、快速和充分地打开编织支架的额外操纵。继而,编织支架的成功在很大程度上依赖于最终使用者在递送中的准确性,这不必要地增大对患者造成伤害的风险。
此外,此类编织的自膨胀支架在递送和/或部署后将难以重新捕获。应当理解,“自膨胀”支架是一种支架,其中特定支架在通过递送装置诸如鞘、微导管等出现时完全部署。在这方面,当自膨胀支架主体在相应的递送装置外部不受限制地出现时,自膨胀编织支架应该在脉管系统中膨胀并部署。然而,由于参考的径向力和摩擦,支架部署和部署后的重新捕获是困难的。
本文所公开的膨胀环1通过在环1和对应的编织支架主体12之间提供牢固的机械附接来解决这些和其他问题,所述机械附接增大了主体12的初始近侧部署端部6、主体12的相对的远侧端部8和/或限定在每个端部6和端部8之间的中心部分的向外延伸的径向膨胀力。相反,环1包括一个或多个互连的支撑组件10,其通过机械地固定每个组件10的爪17以与主体12的编织细长构件22交错,从而共同地使环自身完全与主体12的管腔20锚固。结果,如下面更具体地讨论的,主体12的总的内部摩擦力减小,并且构件22可独立于环1移动主体12。将一个或多个多个环1与主体12组装在一起使得递送相对容易,而不需要环1与主体12的准确定位。继而,主体12在脉管系统内的部署更可靠,同时减小最终使用者受伤的风险。
在下面的描述中,参考形成其一部分并且通过说明的方式示出具体实施方案或示例的附图。在参考附图中,贯穿若干个附图,相似的附图标记表示相似的元件。转到图1和图2,本文公开的环1和对应的支撑组件10的侧视平面图被示出为设置在可以是稍后部署的端部的主体12的近侧端部6处。图1是当与主体12组装在一起时环1的一个实施方案的近距离视图,而图2更多地示出了当示例性环1与主体12组装在一起时的主体12。应当理解,主体12还可包括与其近侧端部6相对的远侧端部8(也称为最初部署的端部),如图6中更清楚地示出,并且环1可机械地连接在远侧端部8处,并且/或者设置在端部6和端部8之间的任何位置处。
可看出,图1和图2的主体12可由多个细长构件22形成,所述多个细长构件22被编织或以其他方式布置以形成多个空隙24。构件22可由两根或更多根金属线材或聚合物纤维或材料股线形成。环1可由一个或多个互连的支撑组件10构成,所述互连的支撑组件10一起形成环1的框架,其能够将一个或多个添加的径向力施加到管腔20的内壁和/或外壁。在这方面,环1可被选择性地定位和布置成用于将主体12快速地打开和/或保持在打开位置,而不必将环1焊接、锡焊、粘合或以其他方式连接到主体12本身。
转到图3,图3是图2中的平面A-A的近距离视图,其更清楚地示出了与空隙24和编织细长构件22交错的一个组件10的示例性爪17。可看出,组件10可包括在第一交叉点31处与第二腿部30接合的第一腿部28。尽管腿部28和腿部30在图3中被示出是彼此一体形成的,但是每个组件10不限于此,并且腿部28和腿部30可通过包括带、螺栓、夹具、耦接器、榫钉、钩、闩锁、钥匙等的紧固件可移除地附接到彼此。腿部28和腿部30也可粘附到彼此或焊接以形成交叉点31。另外,如果在特定的具体实施中使用一个或多个紧固件,则它们可以可移除地连接或焊接、锡焊和/或压接。紧固件和/或腿部28和腿部30可由不透射线的金属诸如铂或钽形成,或者可由不透射线的材料诸如不锈钢形成。
通过将爪17添加到每个组件10的冠部的端部,允许每个环1与主体12交错,而不需要与主体12的永久或刚性附接,诸如焊接、锡焊或化学粘合剂。一旦爪17与主体12和期望的位置有效地交错并连接,编织构件22也可独立于环1移动,这消除了永久或刚性附接先前对主体12产生的不利影响,以在与膨胀环组装在一起时完全膨胀。
交叉点31还可包括可旋转和/或可扭转的耦接器,使得当主体12和环1在使用时,环1的每个组件10能够挠曲预先确定的量。一个或多个细长构件18可从交叉点31延伸并且终止于与交叉点31和腿部28和腿部30相对的锁定机构40处。在图3的实施方案中,多个细长构件18被示出为当在机构40处接合以在细长构件18之间形成孔隙5时彼此基本上对准并且彼此偏移。
为了机械地附接到主体12,每个爪17可具有相应的构件,所述构件穿过空隙24和构件22和/或与空隙24和构件22交错,然后在机构40处接合。在这方面,构件22的一个或多个多个编织对26可布置在孔隙5中或与孔隙5结合,使得爪17可机械地附接到管腔20的内部分和外部分。图3的机构40可由焊接、压接、带、夹具或粘合剂形成,使得构件18中的每个固定地附接到彼此。
转到图4A至图4C,其描绘了具有多个组件10的环1,但是根据需要或优选,确定需要的或需求的组件10的数量。图4A具体描绘了在第二交叉点32处互连的两个互连的支撑组件10,其中腿部28从第二交叉点32朝向交叉点31延伸。图4B类似地描绘了三个互连的组件10,并且图4C描绘了四个互连的组件10。应当理解,组件10可在交叉点32处与彼此一体地形成,或者可使用本文所述的紧固件中的任一个接合在一起。应当理解,每个组件10可以是能够挠曲预先确定的量的压缩元件,使得图4A描绘了两个压缩元件,图4B描绘了三个压缩元件,并且图4C描绘了四个压缩元件。在这方面,具有对应的压缩元件的环1可在展开在脉管系统内之前,在压缩配置以及具有直径大于压缩配置的管腔20的部署配置之间移动。此外,在交叉点31和/或交叉点32处的每个组件10的腿部28和腿部30可形成为如图4A至图4C所示的V形,其中在腿部28和腿部30之间形成锐角和/或斜角。任选地,代替V形,每个组件10的腿部28和腿部30在接合部分处可形成为通常弯曲的“U”形、椭圆形的环或曲线。
转到图5A,其是具有多个互连组件10的示例性环1的透视图。尽管每个组件10可以是如图4A至图4C中的V形,但是图5A描绘了每个组件10可以翘曲取向进行布置的方式。在这方面,腿部28和/或腿部30可包括弯曲或弓形部分,其以预先确定的抗压力翘曲。应当理解,环1的每个组件10可具有相同或不同的阻力,使得每个环1可针对特定的脉管系统具体实施而被个体化。图5B是当在压缩状态下与主体12组装在一起时图5A的环1的示例原型的前视平面图,其在主体12的横截面处在爪17的后部示出主体12的腿部28和腿部30和管腔20中的每一者。在管腔20中描绘了递送机构150,该递送机构用于将每个环1与主体20的内表面和外表面定位和组装在一起。类似地,图5C是当与主体12组装在一起时图5B的环1的前视平面图,其在具有示例递送机构50的爪17的横截面处示出压缩状态下的主体12的内管腔20。可看出,在压缩状态下,每个环1可操作以与主体12的内表面和外表面组装在一起,同时还向支架主体提供向外膨胀的径向力以抵抗压缩状态下的向内施加的压缩。
每个组件10及其组成特征可由超弹性材料诸如镍-钛合金或镍钛诺形成,或者可由非超弹性材料诸如弹簧钢或MP35N,按重量计35%镍、35%钴、20%铬和10%钼的合金形成。每个组件10的腿部28和腿部30也可由具有处于打开状态的形状记忆位置的形状记忆材料形成。
返回到图6,示出了在主体12的端部6和端部8两者处组装的环1的侧视平面图。可看出,每个组件10的爪17被取向成与主体12的编织构件22机械地连接,而每个组件10的相对的交叉点32分别与端部6和端部8连通。还应当理解,由接合的腿部28和腿部30形成的每个组件10的交叉点32可机械地连接到类似于爪17的一个或多个构件22和空隙24。在这方面,交叉点32处的腿部28和腿部30不需要例如通过直接焊接或紧固到主体12本身而直接附接到主体12。相反,类似于交叉点31,腿部28和/或腿部30可通过穿过一个或多个空隙24并与相关联的构件22交错并且接合在一起而直接接合在一起,并且朝向相应的交叉点31向后延伸。
图7描绘了图6中的平面B-B的近距离视图,其描绘了与构件22和空隙24交错的示例性爪17。更具体地,腿部28和腿部30可被看作在交叉点31处接合在一起,其中腿部28和腿部30中的每一者设置在管腔20内。在交叉点31处接合之后,爪17可具有从交叉点31朝向机构40延伸以形成孔隙5的多个基本上对准的细长构件18。机构40可包括将构件18中的每个构件接合在一起的任何先前描述的紧固件,或者可以是焊接、压接、化学粘合剂等。还可看出,构件22的两个编织对26穿过孔隙5,并因此与管腔20的内部分和外部分以及主体12的构件24交错。然而,本文公开的解决方案不是如此限制,并且如图9A至图9C中所示,爪17的每个构件18和对应孔隙5可以以各种方式与构件22编排。例如,只有一个编织对26可与爪17的构件18和孔隙5交错(图9A),两个编织对26可与爪17的构件18和孔隙5交错(图9B),以及/或者三个编织对26可与爪17的构件18和孔隙5交错(图9C)。图9A至图9C的构件18可沿编织主体12在相同位置处进入和离开编织对26。
图8类似地描绘了被选择性地定位在端部6和端部8处的环1以及沿主体12的中心部分设置在端部6和端部8之间的环1的侧视平面图。应当理解,图8的实施方案不旨在为限制性的,并且在端部6和端部8之间可包括任何数量的环1。
转到图10A至图10C,示出了与主体12组装在一起的环1的附加的示例性侧视平面图。具体地,在图10A中示出了三个编织对26与孔隙5和相关联的构件18交错,其中爪17的部分被示出为当爪17与编织主体12交错并且机械地附接到编织主体12时离开和进入相应的编织对26。相比之下,即使当三个编织对26与孔隙5连通时,图10B和图10C中的爪17在不同于图10A的构件22和空隙24的位置处进入和离开。
还设想了替代的爪设计以与环1的组件10一起使用。例如,在图11A中,可看出,爪17a可仅包括从交叉点31a延伸并终止于T形锁定机构40a的单个细长构件18a。在该实施方案中,爪17a可在交叉点31a上与编织对26交错,延伸到主体12的外部分,直到终止于机构40的T形构件中,该T形构件可与主体12的多个空隙24交错以将爪17a机械地连接到主体12。在图11B的另一个另选实施方案中,可看到爪17b具有在交叉点31b和钩状端部锁定机构40b之间延伸的多个细长构件18b。构件18b中的一个或两个构件可与构件22和一个或多个编织对26交错,并且终止于机构40b的钩状构件中。机构40b的钩状构件可具有向上延伸的钩状部分,其可操作以将每个构件18b机械地固定到编织对26。可使用机构40a和机构40b两者代替先前公开的机构40的焊接、粘合剂、压接或紧固件。
转到图12A和图12B,每个附图描绘了当沿爪17的纵向横截面与主体12组装在一起时示例爪17的侧视平面图原型。如图12A和图12B中每一者所示,机构150和对应的隆起块152可将构件18和对应的间隙5与一个或多个构件22和/或对26定位。图12A和图12B并不旨在为限制性的,并且爪17和/或其组成特征可根据需要或期望在有或没有机构150的情况下与主体12组装在一起。
具体的配置、材料的选择以及各种元件的尺寸和形状可根据需要根据所公开技术的原理进行构造的系统或方法的特定设计规格或约束来改变。此类改变旨在被包含在所公开的技术的范围内。因此,目前公开的实施方案在所有方面被认为是说明性的而不是限制性的。因此,从前述显而易见的是,尽管已经对本公开的特定形式进行了说明和描述,但是在不偏离本公开的实质和范围的情况下可进行各种修改,并且在其等同形式的含义和范围内的所有变化旨在被包含在本公开中。
Claims (11)
1.一种编织支架系统,所述系统包括:
支架主体,所述支架主体具有由多个编织构件形成的管腔,其中在所述多个编织构件之间形成空隙;和
第一膨胀环,所述第一膨胀环连接到所述支架主体,所述第一膨胀环包括由多个互连的支撑组件限定的框架,所述多个互连的支撑组件被选择性地定位成向所述支架主体施加向外膨胀的径向力,每个支撑组件包括:
多个腿部,所述多个腿部在第一交叉点处接合,并且在与所述第一交叉点相对的第二交叉点处连接到其他互连的支撑组件中的一个;和
爪部分,所述爪部分通过所述支架主体的所述空隙中的一个或多个空隙机械地连接到所述支架主体,其中所述爪部分通过延伸远离所述第一交叉点,交错穿过所述空隙中的至少两个空隙,并且终止于与第一空隙和第二空隙相对的锁定机构处来将所述膨胀环机械地连接到所述支架主体的内部分和外部分;
其中所述爪部分中的至少一个爪部分包括多个对准的细长构件,所述多个对准的细长构件在所述第一交叉点和所述第二交叉点与锁定机构之间延伸,以形成所述多个空隙穿过的孔隙。
2.根据权利要求1所述的系统,其中所述框架的所述多个腿部翘曲,使得所述框架抵抗压缩,所述腿部能够围绕所述第一交叉点和所述第二交叉点扭转。
3.根据权利要求1所述的系统,其中所述锁定机构包括能够操作以固定地连接到所述支架主体的所述空隙的T形端部或向外延伸的钩状构件中的一者。
4.根据权利要求1所述的系统,其中所述编织构件的多对穿过所述孔隙。
5.根据权利要求1所述的系统,其中所述锁定机构通过借助焊接、压接或粘合剂粘结来接合与所述第一交叉点相对的所述对准的细长构件的端部来将所述膨胀环固定地连接到所述支架主体。
6.根据权利要求1所述的系统,其中所述锁定机构通过借助锡焊来接合与所述第一交叉点相对的所述对准的细长构件的端部来将所述膨胀环固定地连接到所述支架主体。
7.根据权利要求1所述的系统,其中所述锁定机构通过借助金属带或金属环接合与所述第一交叉点相对的所述对准的细长构件的端部来将所述膨胀环固定地连接到所述支架主体。
8.根据权利要求1所述的系统,其中所述多个腿部在所述第二交叉点中的至少一个处形成V形、U形或椭圆曲线中的至少一者。
9.根据权利要求1所述的系统,其中所述多个腿部在所述第一交叉点中的至少一个处形成V形、U形或椭圆曲线。
10.根据权利要求1所述的系统,其中所述支架主体包括近侧端部、远侧端部和设置在所述近侧端部和所述远侧端部之间的中心部分,并且
其中所述第一膨胀环设置在所述支架主体的所述远侧端部或所述近侧端部上或附近,其中所述互连的支撑组件的所述第二交叉点接合在相应的所述远侧端部或所述近侧端部中的另一个处或附近。
11.根据权利要求10所述的系统,还包括:
第二膨胀环,所述第二膨胀环沿所述支架主体的所述中心部分连接,所述第二膨胀环包括由多个互连的支撑组件限定的框架,所述多个互连的支撑组件被选择性地定位成向所述支架主体施加平衡的向外膨胀的径向力,每个支撑组件包括:
多个腿部,所述多个腿部接合在第一交叉点处并且在与所述第一交叉点相对的第二交叉点处连接到所述第二膨胀环的其他互连的支撑组件中的一个;以及通过所述支架主体的所述空隙中的一个或多个空隙机械地连接到所述支架主体的爪部分。
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KR102486606B1 (ko) | 2023-01-11 |
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JP6968655B2 (ja) | 2021-11-17 |
CA2982092A1 (en) | 2018-04-21 |
EP3656358B1 (en) | 2022-07-20 |
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EP3656358A1 (en) | 2020-05-27 |
US20190125557A1 (en) | 2019-05-02 |
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