CN109069259B - 具有内部通道和穿孔的支架移植件 - Google Patents

具有内部通道和穿孔的支架移植件 Download PDF

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CN109069259B
CN109069259B CN201780021205.XA CN201780021205A CN109069259B CN 109069259 B CN109069259 B CN 109069259B CN 201780021205 A CN201780021205 A CN 201780021205A CN 109069259 B CN109069259 B CN 109069259B
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T·罗斯特尔
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Bolton Medical Inc
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06—Blood vessels
    • A61F2/07—Stent-grafts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06—Blood vessels
    • A61F2002/061—Blood vessels provided with means for allowing access to secondary lumens
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0008—Fixation appliances for connecting prostheses to the body
    • A61F2220/0016—Fixation appliances for connecting prostheses to the body with sharp anchoring protrusions, e.g. barbs, pins, spikes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/005—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using adhesives
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0075—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
    • A61F2250/0026—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in surface structures
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
    • A61F2250/0039—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in diameter

Abstract

胸腹分支移植假体包括限定管腔的管腔主移植部件和至少一个主移植壁穿孔。分支移植假体的至少一个通道移植部件限定至少一个通道移植穿孔。通道移植部件位于由管腔主移植部件限定的主移植管腔内。通道移植部件的管腔壁固定到主移植部件的管腔壁。通道移植壁的穿孔与主移植壁的穿孔对准。胸腹分支移植假体可以在胸腹动脉瘤的部位处植入患者内。

Description

具有内部通道和穿孔的支架移植件
相关申请
本申请要求2016年4月5日提交的美国临时申请No.62/318,447、2016年4月7日提交的美国临时申请No.62/319,434和2016年5月12日提交的美国临时申请No.62/335,284的权益。所述申请的全部教导通过引用合并于此。
背景技术
包括主动脉瘤、穿透性粥样硬化性溃疡和夹层的主动脉疾病会是威胁生命的病症，这些病症出现在身体的不同区域内。胸腹主动脉疾病通常出现在隔脚的水平处，并且从脚向近侧、向远侧或向近侧和远侧延伸多种距离。当前，胸腹主动脉疾病的治疗包括例如其中受影响的主动脉被外科地暴露的开放式修复或不太侵入的血管内修复或将开放式修复和血管内治疗相结合的混合方法。会需要从胸部和腹部主动脉分支的血管的重新排布来保持胸腹疾病附近器官的灌注并防止对于该器官的损伤。经历胸腹主动脉修复的患者通常处于手术并发症的高危险之下。
因此，需要一种新颖和改进的血管内修复装置和方法来治疗胸腹主动脉疾病，从而改善血管内修复的效率和精度，并克服或减小所述问题。
发明内容
本发明涉及使用脉管修复装置来治疗主动脉损伤(诸如与胸腹主动脉疾病相关的脉管损伤，包括动脉瘤、穿透性粥样硬化性溃疡和夹层)的脉管修复装置和方法。
在一种实施方式中，本发明是胸腹分支移植假体，其包括主移植部件，所述主移植部件具有管腔壁，所述管腔壁限定开口近侧端部、与所述开口近侧端部相对的开口远侧端部、从所述开口近侧端部延伸到所述开口远侧端部的主管腔以及至少一个主移植壁穿孔。至少一个通道移植部件具有通道移植管腔壁，所述通道移植管腔壁至少部分限定通道移植近侧端部、与所述通道移植近侧端部相对的通道移植远侧端部、从所述通道移植近侧端部延伸到所述通道移植远侧端部的通道移植管腔以及位于所述通道移植壁内的至少一个通道移植穿孔，其中所述通道移植部件位于所述主移植管腔内，并且所述通道移植管腔的主纵向轴线与所述主管腔的主纵向轴线大致对准，并且其中所述通道移植部件的管腔壁被固定到所述主移植部件的管腔壁，由此所述通道移植壁的穿孔与所述管腔壁的穿孔对准。
在另一方面，本发明是一种植入胸腹分支移植假体的方法。胸腹分支移植假体被递送穿过血管到患者内的胸腹动脉瘤部位。所述胸腹分支移植假体包括：i)主移植部件，所述主移植部件具有管腔壁，所述管腔壁至少部分限定开口近侧端部、与所述开口近侧端部相对的开口远侧端部、从所述开口近侧端部延伸到所述开口远侧端部的主管腔以及至少一个主移植壁穿孔；以及ii)至少一个通道移植部件，所述至少一个通道移植部件具有管腔通道移植壁，所述管腔通道移植壁限定通道移植近侧端部、与所述通道移植开口近侧端部相对的通道移植远侧端部、从所述通道移植近侧端部延伸到所述通道移植远侧端部的管腔以及位于所述通道移植壁内的至少一个通道移植穿孔，其中所述通道移植部件位于所述主管腔内，并且所述通道移植管腔的主纵向轴线与所述主管腔的主纵向轴线大致对准，并且其中所述通道移植部件的管腔通道移植壁固定到所述主移植部件的管腔壁，由此所述通道移植壁的穿孔与所述主壁的穿孔对准；其中，至少一个主壁穿孔在所述胸腹动脉瘤部位处与所述患者的至少一个分支血管大致对准。至少一个分支假体在所述至少一个通道移植部件的管腔内插入穿过所述至少一个主壁穿孔和所述至少一个通道移植穿孔，至少一个分支假体具有开口远侧端部和开口近侧端部。所述至少一个分支假体的所述远侧端部或近侧端部之一在所述胸腹动脉瘤部位处插入所述患者的至少一个分支血管。
本发明的胸腹分支移植假体具有多个优点，其包括例如从相对于胸腹动脉瘤部位的尾部或头部位置为医生提供通路，由此促使患者专属的外科方法，包括外科部位、侧脉管分支的动脉瘤和形态学的程度。
附图说明
如附图所示，以上内容将从下面本发明的示例性实施方式的更特别描述中得以明白，附图中类似的附图标记在不同的附图中指的是相同的部件。附图不必按照比例，相反主要在于说明本发明的实施方式。
图1是本发明的胸腹移植假体的一种实施方式的透视图。
图2是植入受体之后的本发明的胸腹移植假体的一种实施方式的侧视图。
图3是植入受体之后的本发明的胸腹移植假体和分支假体的一种实施方式的侧视图。
图4A-4B是从图4A-4B顺序地围绕主纵向轴线旋转90°的本发明的胸腹移植假体的一种实施方式的侧视图。
图5是主动脉瘤部位处的图4A-4B的胸腹移植假体的侧视图。
图6A-6B是从图6A-6B顺序地围绕主纵向轴线旋转90°的本发明的胸腹移植假体的另一实施方式的侧视图。
图7是主动脉瘤部位处的图6A-6B的实施方式的侧视图。
具体实施方式
本发明总体涉及用于治疗脉管疾病的假体，诸如假体在主动脉动脉瘤部位处植入。
本发明的特征和其他细节、本发明的步骤或本发明部件的组合现在将在权利要求中更特别地描述和指明。将理解到本发明的特定实施方式通过说明示出，并且不作为本发明的限制。本发明的主要特征可以在多种实施方式中应用，而不偏离本发明的范围。
本发明的示例性实施方式的描述如下描述。
在本文参照患者中递送或植入的假体(诸如脉管修复装置)时，术语“近侧”指的是假体或假体部件的沿着血液流动路径更靠近患者心脏的部分，并且“远侧”指的是假体或假体部件的沿着血液流动路径更远离患者心脏的部分。
但是，在参照用来递送或植入脉管修复装置(诸如递送装置的鼻锥或手柄)的递送系统或递送系统部件时，本文所用的术语“近侧”指的是更靠近使用递送装置的医务人员。同样，在参照递送系统或递送系统的部件(诸如递送装置的鼻锥或手柄)时，“远侧”指的是进一步远离使用递送系统的医务人员。
为了清楚起见，术语“邻近”指的是靠近，与以上相对于脉管修复装置或递送系统描述的“近侧”或“远侧”所描述的含义不同。
在一种实施方式中，胸腹分支移植假体是分叉胸腹分支移植假体，如图1-3所示。胸腹分支移植假体10包括主移植部件12，其具有管腔壁14，管腔壁14限定开口近侧端部16、与开口近侧端部16相对的至少一个开口远侧端部18(在分支移植假体10的情况下，诸如分支移植假体，如所示具有多个远侧开口端部18)、从开口近侧端部16延伸到开口远侧端部18的主管腔20以及至少一个主移植壁穿孔22。至少一个通道移植部件24具有通道移植管腔壁26，其限定通道移植近侧端部28、与通道移植近侧端部28相对的通道移植远侧端部30、从通道移植近侧端部28延伸到通道移植远侧端部30的通道移植管腔32以及位于通道移植管腔壁26内的至少一个通道移植穿孔34，其中通道移植部件24位于主移植管腔20内，并且通道移植管腔32的主纵向轴线36大致平行于主管腔20的主纵向轴线38，并且其中通道移植部件24的通道移植管腔壁26被固定到主移植部件12的管腔壁14，由此通道移植管腔壁26的穿孔34与主移植壁穿孔22对准。
如图1-3所示，在一种实施方式中，胸腹分支移植假体10包括至少两个通道移植部件50、54。在一种这样的实施方式中，胸腹分支移植假体10包括三个通道移植部件50、52、54，其中通道移植部件50、54在主移植部件12的主管腔20内基本上彼此相对定位，并且其中两个通道移植部件50、54的穿孔34、59分别定位在离开主移植部件12的开口近侧端部20的大约相同距离处，并且其中第三通道移植部件52位于主移植部件12的位于通道移植件50、54之间的部分处，并且第三通道移植件52的开口近侧端部53分别位于通道移植部件50、54的开口近侧端部27、29的近侧。第三通道移植部件52限定基本上平行于第三通道移植部件52的主纵向轴线61的两个壁孔口56、58，并且其中壁孔口56、58与支架移植部件12限定的壁孔口对准。
本发明的胸腹分支移植假体10还可包括从主移植部件12的开口近侧端部16向近侧延伸的裸支架60，如图2和3所示。裸支架60包括邻近裸支架62的近侧顶点63或裸支架60的远侧顶点64中的至少一个或位于裸支架62的近侧顶点63或裸支架60的远侧顶点64中的至少一个处的倒钩62。
至少一个通道移植件50、54的通道移植近侧端部28和通道移植远侧端部30中的至少一个被固定到主移植部件12，如图4、5和7所示。通道移植件50、52、54通过例如缝合、生物粘合剂材料或本领域已知的另一适当材料固定到主移植部件12。
在一种实施方式中，主通道移植部件12可以是分叉的，如图1-3所示，或者是非分叉的，如图4A-7所示。
在另一实施方式中，并参考图2和3，本发明是植入胸腹分支移植假体10的方法，包括使胸腹分支移植假体10递送穿过血管40到患者内的胸腹主动脉瘤部位42的步骤。胸腹分支移植假体10包括上面相对于图1描述的部件。主移植部件12具有管腔壁14，管腔壁14限定开口近侧端部16、与开口近侧端部16相对的开口远侧端部18。主管腔20从开口近侧端部16延伸到开口远侧端部18。至少一个主移植壁穿孔22通过管腔壁20限定。至少一个通道移植部件20具有限定通道移植近侧端部28的通道移植管腔壁26。通道移植远侧端部30与通道移植近侧端部28相对。通道移植管腔32从通道移植近侧端部28延伸到通道移植远侧端部30。至少一个通道移植穿孔34通过通道移植管腔壁26限定。通道移植部件24位于主移植管腔20内。通道移植管腔32的主纵轴线36大致平行于主移植管腔20的主纵向轴线38。通道移植部件24的管腔壁26被固定到主移植部件12的管腔壁14，由此通道移植管腔壁26的穿孔34与主移植管腔壁14的穿孔22对准。通道移植主移植壁穿孔22中的至少一个在胸腹主动脉瘤部位处与至少一个分支脉管65大致对准。
至少一个分支假体46插入穿过至少一个主移植壁穿孔22和至少一个通道移植穿孔34，并且位于至少一个通道移植部件的管腔内，至少一个分支假体46具有开口远侧端部48和开口近侧端部50；并且至少一个分支假体46的远侧端部48在胸腹主动脉瘤部位42处插入至少一个分支脉管65(见，例如图3)。分支假体46可以从主移植部件12内或从主移植部件12外侧插入穿过主移植壁穿孔22。
本发明的胸腹分支移植假体具有允许医生从相对于胸腹动脉瘤部位的头部或尾部位置接近(图2、3)，由此根据患者、侧部分支的动脉瘤和形态部位、程度在外科方法中提供更大灵活性。主移植部件12的通道移植部件24允许对接，以便固定分支假体(图3)。
在另一实施方式中，如图4A-B和5所示，主移植部件100具有中间截面102，中间截面102的直径小于主移植部件100的端部104、106的至少一个，以有助于分支假体的插管。较窄的中间截面102允许更多空间来操控导丝或导管穿过通道移植部件108、110和主移植壁114内的主移植壁穿孔112到通道移植件116。包括较窄中间截面102的主移植部件可以是分叉的(未示出)，或者非分叉的(图4A、4B和5)。在分支移植假体100的情况下，诸如分叉移植假体，至少一个端部104、106中的多个包括具有小于至少一个端部104、106的直径的中间截面102。
在又一实施方式中，如图6A、6B和7中，主移植部件120包括具有小于近侧端部124的直径的渐缩远侧端部122。如图4A、4B和5所示，此实施方式具有有助于分支假体126、128穿过主移植穿孔130到通道移植件132的插管。主移植部件包括具有小于近侧端部124的直径的渐缩远侧端部122，并且可以是分叉的(未示出)或非分叉的(图6A、6B和7)。在分支移植假体120的情况下，诸如分支的移植假体，其具有多个远侧端部(未示出)，渐缩远侧端部122具有位于移植假体的分支位置近侧或在移植假体的分支位置处的较小直径。
本发明的脉管修复装置可以例如通过经股动脉通路植入。针对本发明的脉管修复装置的附加脉管修复装置可以例如通过主动脉脉管通路(例如穿过分支主动脉)或通过经股动脉通路或来自主要血管(包括周围血管)的一些其他一个或多个分支的通路植入。
本文引用的所有专利、公开申请的相关教导通过引用整体合并。美国专利No.8,292,943、7,763,063、8,308,790、8,070,790、8,740,963、8,007,605、9,320,631、8,062,349、9,198,786、8,062,345、9,561,124、9,173,755、8,449,595、8,636,788、9,333,104、9,408,734、9,408,735、8,500,792、9,220,617、9,364,314、9,101,506、8,998,970、9,554,929、9,439,751和美国专利申请No.14/226,005、14/675,102、15/099,974；15/040,460、14/575,673、14/924,102、15/166,818、15/167,055、14/736,978、13/454,447、15/384,663、13/788,724、15/417,467、15/230,601、14/272,818和14/861,479的相关教导同样通过引用整体合并。
虽然参考其示例性实施方式特别示出和描述了本发明，本领域普通技术人员将理解到可以进行形式和细节上的多种变化，而不偏离所附权利要求所包含的本发明的范围。

Claims (19)

1.一种胸腹分支移植假体，包括：
a)主移植部件，所述主移植部件具有管腔壁，所述管腔壁限定开口近侧端部、与所述开口近侧端部相对的开口远侧端部、通过从所述开口近侧端部延伸到所述开口远侧端部的所述主移植部件管腔壁限定的主管腔，其中所述主移植部件的管腔壁限定小于所述主移植部件的所述开口近侧端部和开口远侧端部中的至少一个的主管腔的中间截面横截面直径，所述主移植部件具有至少一个主移植壁穿孔；以及
b)至少一个通道移植部件，所述至少一个通道移植部件具有通道移植管腔壁，所述通道移植管腔壁至少部分限定通道移植近侧端部、与所述通道移植近侧端部相对的通道移植远侧端部、从所述通道移植近侧端部延伸到所述通道移植远侧端部的通道移植管腔以及位于所述通道移植管腔壁内的至少一个通道移植穿孔，其中所述通道移植部件位于所述主移植部件的管腔内，并且所述通道移植管腔的主纵向轴线与所述主移植部件的管腔的主纵向轴线基本对准，并且其中所述通道移植部件的通道移植管腔壁被固定到所述主移植部件的管腔壁，由此所述通道移植管腔壁的穿孔与所述主移植部件的管腔壁的主移植部件的穿孔对准。
2.根据权利要求1所述的胸腹分支移植假体，其中，所述通道移植近侧端部、所述通道移植远侧端部和所述通道移植管腔通过所述主移植部件部分限定。
3.根据权利要求1所述的胸腹分支移植假体，其中，所述通道移植部件的壁在所述通道移植部件的穿孔以及所述主移植部件的穿孔处缝合到所述主移植部件的壁，由此所述穿孔一起限定单个穿孔。
4.根据权利要求3所述的胸腹分支移植假体，包括至少两个通道移植部件。
5.根据权利要求4所述的胸腹分支移植假体，包括三个通道移植部件。
6.根据权利要求5所述的胸腹分支移植假体，其中，所述通道移植部件中的两个通道移植部件在所述主移植部件的管腔内基本上彼此相对定位，并且其中所述两个通道移植部件的穿孔定位在距所述主移植部件的所述开口近侧端部大约相同的距离处。
7.根据权利要求6所述的胸腹分支移植假体，其中，第三通道移植部件位于所述主移植部件的位于另外两个通道移植部件之间的部分处，并且其中所述第三通道移植部件的开口近侧端部位于另外通道移植部件的开口近侧端部的近侧。
8.根据权利要求7所述的胸腹分支移植假体，其中，所述第三通道移植部件限定沿着所述第三通道移植部件的主纵向轴线对准的两个壁孔口，并且其中所述主移植壁限定与所述第三通道移植部件的壁的孔口对准的壁孔口。
9.根据权利要求8所述的胸腹分支移植假体，还包括从所述主移植部件的开口近侧端部向近侧延伸的裸支架。
10.根据权利要求9所述的胸腹分支移植假体，其中，所述裸支架包括限定近侧顶点和远侧顶点的倾斜支柱。
11.根据权利要求10所述的胸腹分支移植假体，其中，所述裸支架包括邻近所述裸支架的近侧顶点或位于所述裸支架的近侧顶点处的倒钩。
12.根据权利要求11所述的胸腹分支移植假体，其中，所述主移植部件和所述通道移植部件中的至少一个包括位于各自开口近侧端部和开口远侧端部处的支架。
13.根据权利要求12所述的胸腹分支移植假体，其中，所述主移植部件在所述开口远侧端部处分叉，由此限定所述假体的两个腿部。
14.根据权利要求13所述的胸腹分支移植假体，其中，所述主移植部件的一个腿部的开口远侧端部位于另一腿部的远侧。
15.根据权利要求14所述的胸腹分支移植假体，还包括从所述通道移植部件内延伸穿过所述通道移植部件的与所述通道移植部件的壁穿孔对准的壁穿孔的至少一个分支假体。
16.根据权利要求15所述的胸腹分支移植假体，其中，所述至少一个分支假体限定与所述至少一个分支假体在其中延伸的所述通道移植部件的开口远侧端部流体连通的开口端部。
17.根据权利要求15所述的胸腹分支移植假体，其中，所述至少一个分支假体限定与所述至少一个分支假体在其中延伸的所述通道移植部件的开口近侧端部流体连通的开口端部。
18.根据权利要求1所述的胸腹分支移植假体，其中，所述中间截面的横截面直径比所述主移植部件的所述开口近侧端部和所述开口远侧端部都小。
19.根据权利要求18所述的胸腹分支移植假体，其中，所述至少一个通道移植部件的所述开口近侧端部和所述开口远侧端部中的一个被缝合到所述主移植部件。
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