CN109803711A - 多腔导管 - Google Patents

多腔导管 Download PDF

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CN109803711A
CN109803711A CN201780060523.7A CN201780060523A CN109803711A CN 109803711 A CN109803711 A CN 109803711A CN 201780060523 A CN201780060523 A CN 201780060523A CN 109803711 A CN109803711 A CN 109803711A
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chamber
long element
endovascular device
catheter
distal end
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CN109803711B (zh
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兰道夫·冯厄彭
肖恩·A·麦克尼文
弗朗西斯科·巴伦西亚
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Cephea Valve Technologies Inc
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
    • A61M25/0026—Multi-lumen catheters with stationary elements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
    • A61M25/0026—Multi-lumen catheters with stationary elements
    • A61M25/0032—Multi-lumen catheters with stationary elements characterized by at least one unconventionally shaped lumen, e.g. polygons, ellipsoids, wedges or shapes comprising concave and convex parts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • A61M25/0045—Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0133—Tip steering devices
    • A61M25/0136—Handles therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0133—Tip steering devices
    • A61M25/0147—Tip steering devices with movable mechanical means, e.g. pull wires
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00238—Type of minimally invasive operation
    • A61B2017/00243—Type of minimally invasive operation cardiac
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
    • A61B2017/003—Steerable
    • A61B2017/00318—Steering mechanisms
    • A61B2017/00323—Cables or rods
    • 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
    • A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
    • A61F2/2427—Devices for manipulating or deploying heart valves during implantation
    • A61F2/2436—Deployment by retracting a sheath
    • 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
    • A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
    • A61F2/2427—Devices for manipulating or deploying heart valves during implantation
    • A61F2/2439—Expansion controlled by filaments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
    • A61M25/0026—Multi-lumen catheters with stationary elements
    • A61M2025/0034—Multi-lumen catheters with stationary elements characterized by elements which are assembled, connected or fused, e.g. splittable tubes, outer sheaths creating lumina or separate cores
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
    • A61M25/0026—Multi-lumen catheters with stationary elements
    • A61M2025/0035—Multi-lumen catheters with stationary elements characterized by a variable lumen cross-section by means of a resilient flexible septum or outer wall
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
    • A61M25/0026—Multi-lumen catheters with stationary elements
    • A61M2025/0036—Multi-lumen catheters with stationary elements with more than four lumina
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
    • A61M25/0026—Multi-lumen catheters with stationary elements
    • A61M2025/004—Multi-lumen catheters with stationary elements characterized by lumina being arranged circumferentially
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • A61M25/0045—Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
    • A61M2025/0046—Coatings for improving slidability
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • A61M25/0045—Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
    • A61M2025/0046—Coatings for improving slidability
    • A61M2025/0047—Coatings for improving slidability the inner layer having a higher lubricity
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids

Abstract

血管内装置递送系统(100)包含长形构件(102)，所述长形构件(102)具有近端(104)、远端(106)和在它们之间的纵向轴线(128)。长形构件包含多腔导管(116)，所述多腔导管(116)具有导管壁(136)，所述导管壁中具有多个腔(132)。所述多个腔从所述长形构件的近端延伸到所述长形构件的远端。所述多个腔的截面面积与导管壁的截面面积的腔比率大于30％。

Description

多腔导管
背景技术
血管内医疗操作允许在患者身体内的多个位置进行治疗性处理，同时仅需要相对小的进入切口。例如，血管内操作可消除对心内直视(open-heart)手术的需要，降低与心内直视操作相关的风险、成本和时间。血管内操作还能够加快恢复时间，具有降低的相关成本和并发症风险。与常规开放式外科手术相比显著减少操作时间和恢复时间和成本的血管内操作的实例是心脏瓣膜置换或修复操作。人造瓣膜通过患者的脉管系统被引导至心脏。例如，将导管插入患者的脉管系统并引导至下腔静脉。然后通过纵向向导管施加力推动导管通过下腔静脉朝向心脏。从下腔静脉进入心脏后，导管进入右心房。可以通过位于导管内部的一根或更多根引导线(wire)使导管的远端偏转。导管远端的精确控制允许医疗装置和/或植入物更可靠和更快的定位以及操作中的其他改进。
所述装置还可以被引导通过瓣膜腱索或乳头肌，例如，其用于二尖瓣的介入性治疗。当这样的操作需要使用多于一个仪器时，每个仪器将取决于相对于瓣膜的适当定位。因此，需要在每个仪器中建立定位或操纵机构。这进一步增加了操作的成本、复杂性和时间。
另一些操作可包括从股静脉穿刺通过心房内隔膜至左心房追踪导管和/或进入套管(access sheath)。该途径可用于进入左心房，用于心房壁的消融或肺静脉周围的消融。这样的介入治疗需要与靶区域精确对准以进行适当的消融放置。另外，替代的进入路线和/或到其他腔的进入路线可能是期望的。
发明概述
在一个实施方案中，血管内装置递送系统包含长形构件，所述长形构件具有近端、远端和在它们之间的纵向轴线。长形构件包含多腔导管，所述多腔导管具有导管壁，导管壁中具有多个腔。多个腔从长形构件的近端延伸到长形构件的远端。多个腔的截面面积与导管壁的截面面积的腔比率(1umen ratio)大于30％。
提供本概述是为了介绍一些概念，其将在以下详细说明中进一步描述。本概述不旨在确定所要求保护的主题的具体特征，也不旨在用于辅助限制所要求保护的主题的范围。
本公开的实施方案的其他特征将在下面的说明中示出。可以借助于所附权利要求中特别指出的仪器和组合来实现这样的一些实施方案的特征。根据以下描述和所附权利要求，这些和其他特征将变得更加明显，或者可以通过实施如下所列的这样的示例性实施例来学习。
附图简述
为了描述可以获得本公开的上述和其他特征的方式，将通过参考在附图中示出的其具体实施方案来呈现更具体的描述。为了更好地理解，在各个附图中，相同元件由相同附图标记表示。虽然一些附图可能是概念的示意性或夸大的表示，但是至少一些附图可按比例绘制。应理解附图描绘了一些示例实施方案，该实施方案将通过使用附图以附加的特征和细节来描述和解释，附图中：
图1是根据本公开的血管内装置递送系统的一个示意性实施方案；
图2是根据本公开的图1的血管内装置递送系统的远端的一个实施方案的详细透视图；
图3是根据本公开的图1的血管内装置递送系统的长形构件的一个实施方案的截面侧视图；
图4是根据本公开的图1的血管内装置递送系统的多腔导管的一个实施方案的详细横截面视图；
图5是根据本公开的血管内装置递送系统的多腔导管的另一个实施方案的详细横截面侧视图；和
图6是根据本公开的血管内装置递送系统的多腔导管的另一个实施方案的详细横截面侧视图。
图7是根据本公开的血管内装置递送系统的多腔导管的另一个实施方案的详细横截面侧视图。
发明详述
以下将描述本公开的一个或更多个具体实施方案。为了提供这些实施方案的简明描述，实际实施方案的一些特征可能在说明书中描述。应当理解，在任何这样的实际实施方案的开发中，如在任何工程或设计项目中，将做出许多针对实施方案特定的决定以实现开发者的特定目标，例如遵守与系统相关的和与业务相关的约束，所述约束可能在不同实施方案之间变化。应该进一步理解的是，这样的开发工作可能是复杂且耗时的，但是对于受益于本公开的普通技术人员来说仍然是设计、加工和制造的常规任务。
本公开的一个或更多个实施方案通常可涉及制造和使用血管内装置递送系统或其他可操纵的血管内系统。血管内装置递送系统可允许医疗专业人员将血管内医疗装置或其他医疗装置输送到患者体内的靶位置。虽然本公开将描述与心脏内的血管内操作相关的血管内装置递送系统及其应用，但应理解，本文所述的装置、系统和方法可适用于其他的体腔和/或内腔。另外，关于本文描绘和/或描述的任何实施方案描述的元件可以与关于本文描绘和/或描述的任何其他实施方案描述的元件组合。例如，关于图3中描绘的实施方案描述的任何元件可以与图4中描述的实施方案的任何元件组合，并且关于图5中描述的实施方案描述的任何元件可以与图2中描绘的实施方案的任何元件组合。
血管内装置递送系统可包含柔性长形构件，所述长形构件具有远端和近端。手柄可以连接到长形构件的近端，以允许使用者(例如医疗专业人员和/或临床医生)控制长形构件的一种或更多种移动。血管内装置可定位在和/或连接到长形构件的远端。
在一些实施方案中，血管内装置递送系统可以被配置为递送用多个张力构件(tension member)控制和/或保持在长形构件中的血管内装置。张力构件可从手柄穿过长形构件的至少一部分沿纵向方向延伸到血管内装置。在一些实施方案中，张力构件连接至血管内装置，以在将血管内装置递送系统移动通过患者的解剖结构期间将血管内装置保持在长形构件中。在另一些实施方案中，张力构件连接到血管内装置，以致动血管内装置的一个或更多个可移动和/或可变形部分，例如用于将血管内装置固定在身体中的靶位置的夹子。
在一些实施方案中，手柄可包含一个或更多个控件(例如，旋钮、按钮、杠杆或其他控件)，其可使血管内装置递送系统的至少一部分相对于另一部分移动。例如，手柄可包含一个或更多个控件，用于使长形构件的至少一个元件相对于长形构件的另一个元件移动。手柄可使内部元件相对于长形构件的外部元件沿近端方向、远端方向、旋转方向或其组合移动。
图1示出了血管内装置递送系统100的示意图。系统100可包含具有近端104和远端106的长形构件102。一个或更多个手柄108可连接到长形构件102的近端104。血管内装置110可定位在和/或连接到远端106。
长形构件102可以是柔性的，允许长形构件102穿过患者的曲折脉管系统或其他解剖结构。在一些实施方案中，长形构件102可将血管内装置110递送到患者身体中的靶位置，例如将心脏瓣膜修复装置递送到心脏。在另一些实施方案中，系统100和长形构件102可以在远端106处没有血管内装置110的情况下提供，使得系统可以重新捕获、重新定位或以其他方式移动先前定位在患者身体中的血管内装置。
系统100的长形构件102可在其中包含一个或更多个元件。长形构件102的元件可包含导管、引导丝(guidewire)、套管、驱动缆线、其他管状和/或实心元件，或其组合。在一些实施方案中，长形构件102的元件可以从长形构件102的近端104延伸至远端106的长形构件102的整个长度。在另一些实施方案中，长形构件102的元件可以具有小于长形构件102的整个长度的长度。例如，元件可以从近端104朝向远端106提供对长形构件102的支持，而不会使整个长度延伸到远端106。
图2示出了图1的长形构件102的远端106的一个实施方案的示意性详细截面侧视图。血管内装置110径向地定位在长形构件102的外套管112内。血管内装置110由长形构件102携带通过患者的解剖结构到达身体中的靶位置。在靶位置处，血管内装置110可以被在远端纵向方向上推动，使得血管内装置110不再被外套管112径向约束。在另一些实施方案中，外套管112可以在近端纵向方向上缩回以允许血管内装置110径向展开(deploy)。在另一些实施方案中，血管内装置110通过血管内装置110相对于长形构件102移动和外套管112相对于长形构件102的其余部分移动的组合展开。
在展开血管内装置110之前和/或期间，血管内装置110可通过连接到血管内装置110的多个张力构件114保持在外套管112内(例如，可限制血管内装置110的远端纵向运动)。张力构件114可以通过多腔导管116引导至血管内装置110，并且连接至手柄和血管内装置110两者，以将来自手柄的张力传递至血管内装置110。在一些实施方案中，张力构件114还用于在装载到外套管112期间使血管内装置110塌缩。在装载期间，可产生高的力(即，达100磅的力)并且额外的张力构件114可以更多地分配力以减小任何一个张力构件114失效的可能性。
图3是图1的血管内装置递送系统100的长形构件102的实施方案的部分的侧面局部剖视图。在一些实施方案中，长形构件102可包含外套管112、可操纵引导导管118、可操纵导管120、压缩线圈122和内导管124。根据本发明，长形构件102中的可操纵引导导管118、可操纵导管120和内导管124中的任一个可以是多腔导管。引导丝腔126可径向定位在内导管124内，且平行于长形构件102的纵向轴线128。长形构件102的一个或更多个元件可相对于彼此纵向移动。在一些实施方案中，长形构件的至少一个元件相对于另一个纵向固定。例如，内导管124和压缩线圈122可以在内导管124和压缩线圈122的远端处相对于彼此纵向固定。
另外，长形构件102的一个或更多个元件可相对于彼此旋转地移动。在一些实施方案中，长形构件的至少一个元件相对于另一个旋转地固定。例如，外套管112和可操纵引导导管118可以在外套管112的近端和远端之间的中间位置处相对于彼此旋转地固定。
在将血管内装置通过患者的脉管系统进行递送期间，多腔导管将偏转。张力构件相对于彼此的长度在偏转期间将发生改变。例如，位于曲线内侧附近的张力构件将具有比在曲线外侧延伸的张力构件更短的距离。可期望保持多腔导管的直径尽可能小。小直径多腔导管可将张力构件114定位在更接近长形构件102的纵向轴线128处，从而减小偏转期间的相对位移。
图4示出了根据本公开的多腔导管116的横截面视图。多腔导管116包含内衬130。内衬130可包含聚四氟乙烯(polytetrafluoroethylene，PTFE)或任何其他润滑材料。由润滑管(即聚酰亚胺)形成的多个腔132围绕内衬130放置(在这种情况下为8腔)。腔132通过腔上方的细编织物134或线圈保持在一起，并由聚合物护套覆盖以形成多腔导管116的壁136。
位于导管壁136中的薄壁腔132可在递送过程和长形构件偏转期间变形。以下计算显示空心腔132与导管壁136的腔比率可大于50％。该计算基于导管壁而没有内衬130、编织物134和外护套138。将内衬130、编织物134和外护套138添加至计算中可以产生大于40％的腔比率。张力构件可定位在腔132内，以通过手柄和血管内装置之间的长形构件传送和引导张力构件。
图5示出了多腔导管216的一个实施方案，其具有九个椭圆形腔232-1和三个圆形腔232-2，总共十二个腔。图5中所示的多腔导管216的计算列于下表1中：
表1
图6示出了多腔导管316的另一个实施方案，其具有十二个椭圆形腔323。图6中所示的多腔导管316的计算列于下表2中：
表2
图7示出了多腔导管416的另一个实施方案，其具有四个椭圆形腔432-1和八个圆形腔432-2，总共十二个腔。
在一些实施方案中，根据本公开的血管内装置递送系统可允许递送更大的血管内装置和/或通过更小的身体导管。血管内装置递送系统可允许新的和/或改进的操作，对患者具有较小的风险并且对医疗专业人员更容易操作。
未用数量词限定的名词意旨在前面的描述中存在一个或更多个要素。术语“包含”、“包括”和“具有”旨在是包含性的，并且意味着可存在除所列元件之外的其他要素。另外，应当理解，对本公开的“一个实施方案”或“实施方案”的引用不旨在被解释为排除也结合了所述特征的另外的实施方案的存在。如本公开的实施方案所涵盖的本领域普通技术人员所理解的，本文所述的数字、百分比、比率或其他值旨在包括该值以及“约”或“近似”所述值的其他值。因此，应当对所述值进行足够宽泛的解释，以包含至少足够接近所述值的值，以执行期望的功能或实现期望的结果。所述值至少包括在合适的制造或生产过程中预期的变化，并且可包括在所述值的5％、1％、0.1％或0.01％内的值。
本领域普通技术人员鉴于本公开应该认识到，等同构造不脱离本公开的精神和范围，并且在不脱离本公开的精神和范围的情况下，可以对在此所公开的实施方案进行多种改变、替换和变更。包括功能性“装置加功能”权项的等同构造旨在覆盖在此描述为执行所述功能的结构，包括以相同方式操作的结构的等同物，以及提供相同功能的等同结构。申请人的明确意图是不对任何权利要求援引装置加功能或其他功能性权利要求，除非“用于...的装置”一词与相关功能一起出现。落入权利要求的含义和范围内的实施例的每个添加、删除和修改都包含在权利要求中。
本文使用的术语“近似”、“约”和“基本上”表示接近所述量的量，其仍然执行期望的功能或实现期望的结果。例如，术语“近似”、“约”和“基本上”可指在所述量的小于5％内、小于1％内、小于0.1％内、小于0.01％内的量。此外，应当理解，前述描述中的任何方向或参考系仅仅是相对方向或运动。例如，对“向上”和“向下”或“在......之上”或“在......之下”的任何引用仅仅描述了相关要素的相对位置或移动。
在不脱离本发明的精神或特征的情况下，本公开可以以其他具体形式实施。所描述的实施方案被认为是说明性的而非限制性的。因此，本公开的范围由所附权利要求而不是前述的描述来表示。在权利要求的含义和等同范围内的变化将包含在其范围内。

Claims (9)

1.血管内装置递送系统，所述系统包含：
长形构件，其具有近端、远端和在它们之间的纵向轴线，所述长形构件包含：
多腔导管，其具有导管壁，所述导管壁中具有多个腔，所述多个腔从所述长形构件的近端延伸到所述长形构件的远端，其中所述多个腔的截面面积与所述导管壁的截面面积的腔比率大于30％。
2.权利要求1所述的系统，其中所述腔比率大于40％。
3.权利要求2所述的系统，其中所述腔比率大于50％。
4.权利要求3所述的系统，其中所述多个腔中的至少一个被强化。
5.权利要求4所述的系统，其还包含围绕所述导管壁的外护套。
6.权利要求5所述的系统，其还包含内衬。
7.权利要求6所述的系统，其中所述多个腔中的至少一个腔是椭圆形的。
8.权利要求7所述的系统，其中所述多个腔中的至少一个腔是圆形的。
9.权利要求6所述的系统，其中所述多个腔中的至少一个腔是椭圆形的，并且所述多个腔中的至少另一个腔是圆形的。
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