公开(公告)号：US20150224707A1

公开(公告)日：2015-08-13

申请号：US14692615

申请日：2015-04-21

Applicant: Abbott Cardiovascular Systems Inc.

Inventor： Yunbing Wang ,  Xioa Ma ,  Rommel C. Lumauig

IPC: B29C65/56

CPC classification number: B29C65/567 ,  A61F2/915 ,  A61F2/958 ,  A61F2002/9522 ,  Y10T29/49925

Abstract: A medical device includes a polymer stent crimped to a catheter having an expansion balloon. The stent is crimped to the balloon by a process that includes heating the stent to a temperature below the polymer's glass transition temperature to improve stent retention without adversely affecting the mechanical characteristics of the stent when later deployed to support a body lumen. A variable diameter sheath with a central portion that prevents expansion of the stent when the balloon is pressurized and larger diameter ends is disposed over the crimped stent-balloon assembly. The balloon is pressurized and the larger diameter ends of the sheath allow the balloon beyond the ends of the stent to expand. The balloon is then depressurized.

Abstract translation: 医疗装置包括压接到具有膨胀气囊的导管的聚合物支架。 将支架通过包括将支架加热到低于聚合物玻璃化转变温度的温度的方法来卷曲到气囊，以改善支架保持，而不会在稍后部署以支撑体腔时对支架的机械特性产生不利影响。 具有中心部分的可变直径护套设置在卷曲的支架 - 球囊组件上方，该中心部分防止当球囊被加压并且较大直径末端时支架膨胀。 气囊被加压，并且护套的较大直径的端部允许超出支架的端部的气囊膨胀。 然后将气球减压。

公开(公告)号：US20150366690A1

公开(公告)日：2015-12-24

申请号：US14312055

申请日：2014-06-23

Applicant: Abbott Cardiovascular Systems Inc.

Inventor： Rommel C. Lumauig

IPC: A61F2/966 ,  A61F2/958 ,  A61F2/82

CPC classification number: A61F2/966 ,  A61F2/82 ,  A61F2/958 ,  A61M25/04 ,  A61M2025/0681

Abstract: A stent delivery system includes a delivery catheter and an anchoring guide wire with an associated expandable member designed to expand within the patient's body vessel to anchor at least a distal portion of the delivery catheter within the body vessel. The anchoring of the distal portion of the delivery catheter helps to prevent a self-expanding stent, mounted on the delivery catheter, from jumping longitudinally in the body vessel as the outer restraining member of the catheter is being retracted since a portion of the self-expanding stent remains pressed against the wall of the body vessel allowing the stent to expand laterally with the vessel.

Abstract translation: 支架输送系统包括输送导管和具有相关联的可扩张构件的锚定导丝，该可引导构件被设计成在患者体内容器内扩张，以将至少一个输送导管的远端部分锚固在体内容器内。 输送导管的远侧部分的锚定有助于防止安装在输送导管上的自扩张支架随着导管的外部限制构件正在缩回而在身体容器中纵向跳跃， 扩张支架保持压靠在身体容器的壁上，允许支架与血管横向扩张。