METHOD OF IMPROVING FRACTURE TOUGHNESS OF IMPLANTABLE MEDICAL DEVICES THROUGH ANNEALING
    272.
    发明申请
    METHOD OF IMPROVING FRACTURE TOUGHNESS OF IMPLANTABLE MEDICAL DEVICES THROUGH ANNEALING 有权
    通过退火改善可植入医疗器械的断裂韧性的方法

    公开(公告)号:US20130207314A1

    公开(公告)日:2013-08-15

    申请号:US13794537

    申请日:2013-03-11

    CPC classification number: B29C51/002 A61L31/06 A61L31/14 Y10T29/49 C08L67/04

    Abstract: Methods of fabricating a polymeric implantable device with improved fracture toughness through annealing are disclosed herein. A polymeric construct is annealed with no or substantially no crystal growth to increase nucleation density. After the annealing, crystallites are grown around the formed nuclei. An implantable medical device, such as a stent, can be fabricated from the polymer construct after the crystallite growth.

    Abstract translation: 本文公开了通过退火制造具有改善的断裂韧性的聚合物可植入装置的方法。 将聚合物构件退火,没有或基本上没有晶体生长以增加成核密度。 退火后,在形成的核周围生长微晶。 在微晶生长之后,可由聚合物构造体制造诸如支架的可植入医疗装置。

    NON-COMPLIANT MULTILAYERED BALLOON FOR A CATHETER
    273.
    发明申请
    NON-COMPLIANT MULTILAYERED BALLOON FOR A CATHETER 审中-公开
    用于导管的不合并多层气球

    公开(公告)号:US20130172817A1

    公开(公告)日:2013-07-04

    申请号:US13775752

    申请日:2013-02-25

    Abstract: Balloon catheter comprises an elongate catheter shaft having a proximal section, a distal section, and an inflation lumen, and a multilayer balloon on the distal section of the shaft. The multilayer balloon comprises at least a first layer and a second layer having a combined wall thickness and an outer-most layer. The first layer is made of a first polymer material having a first maximum blow-up-ratio. The second layer is made of a second polymer material having a second maximum blow-up-ratio greater than the first maximum blow-up-ratio and the second layer is an inner layer relative to the first layer. The at least first and second layers define a compliance less than that of a single layer balloon made of the first polymer material with a wall thickness equal to the combined wall thickness. The outer-most layer is made of a third polymer material.

    Abstract translation: 气囊导管包括具有近端部分,远侧部分和充气腔的细长导管轴,以及在轴的远侧部分上的多层气囊。 多层气囊包括至少第一层和具有组合的壁厚和最外层的第二层。 第一层由具有第一最大吹胀比的第一聚合物材料制成。 第二层由具有大于第一最大吹胀比的第二最大吹胀比的第二聚合物材料制成,而第二层是相对于第一层的内层。 所述至少第一层和第二层限定了小于由第一聚合物材料制成的单层球囊的顺应性,其厚度等于组合的壁厚度。 最外层由第三种聚合物材料制成。

    METHOD AND MEDICAL DEVICE HAVING TISSUE ENGAGING MEMBER FOR DELIVERY OF A THERAPEUTIC AGENT
    274.
    发明申请
    METHOD AND MEDICAL DEVICE HAVING TISSUE ENGAGING MEMBER FOR DELIVERY OF A THERAPEUTIC AGENT 审中-公开
    具有用于递送治疗剂的组织结合部件的方法和医疗装置

    公开(公告)号:US20130138081A1

    公开(公告)日:2013-05-30

    申请号:US13741049

    申请日:2013-01-14

    Abstract: Method of delivering a therapeutic agent includes delivering at least a portion of a medical device within a vasculature. The medical device includes a tubular member having a proximal end and distal end defining a longitudinal axis therebetween, an expandable member proximate the distal end of the tubular member, a tissue engaging member proximate the expandable member, a sheath disposed over the tissue engaging member, and a therapeutic agent disposed on at least the expandable member or the tissue engaging member. The method further includes deploying the tissue engaging member at a select location by displacement of the sheath relative the tissue engaging member, inflating the expandable member to engage the therapeutic agent with a vessel wall, deflating the expandable member, and withdrawing the medical device from the vasculature.

    Abstract translation: 递送治疗剂的方法包括在脉管系统内输送医疗装置的至少一部分。 医疗装置包括管状构件,其具有限定其间的纵向轴线的近端和远端,靠近管状构件的远端的可扩张构件,靠近可膨胀构件的组织接合构件,设置在组织接合构件上方的护套, 以及设置在至少所述可扩张构件或所述组织接合构件上的治疗剂。 该方法还包括通过相对于组织接合构件移动护套来将组织接合构件部署在选择位置,使可膨胀构件膨胀以使治疗剂与血管壁接合,使可膨胀构件放气,以及将医疗装置从 脉管系统

    GUIDEWIRE HAVING LINEAR CHANGE IN STIFFNESS

    公开(公告)号:US20130131550A1

    公开(公告)日:2013-05-23

    申请号:US13674615

    申请日:2012-11-12

    Abstract: The invention is directed to a guidewire having a distal section with multiple distally tapered core segments with at least two contiguous distally tapering core segments in which the most distal tapered core segment preferably has a greater degree of taper than the proximally contiguous tapered core segment. The invention is also directed to an elongated intracorporeal device, preferably a guidewire or section thereof, that has a core member or the like with a plurality of contiguous tapered segments having taper angles that are configured to produce a linear change in stiffness over a longitudinal section of the device. The device may also have a core section with a continuously changing taper angle to produce a curvilinear profile that preferably is configured to produce a linear change in stiffness of the core over a longitudinal section of the device.

    RADIATION STERILIZATION OF MEDICAL DEVICES
    276.
    发明申请
    RADIATION STERILIZATION OF MEDICAL DEVICES 有权
    医疗器械辐射灭菌

    公开(公告)号:US20130078141A1

    公开(公告)日:2013-03-28

    申请号:US13685591

    申请日:2012-11-26

    CPC classification number: A61L2/087 A61L2/081 A61L2202/24

    Abstract: A method for medical device sterilization comprises staggering a stack of packages so that a back surface of each package partially overlaps a front surface of another of the packages. Each package contains a medical device. The stack of packages are positioned so that the front surfaces of the packages face toward a radiation source. The packages are then exposed to radiation.

    Abstract translation: 一种用于医疗装置灭菌的方法包括交错堆叠的包装,使得每个包装的后表面部分地与另一个包装的前表面重叠。 每个包装包含一个医疗设备。 包装的堆叠被定位成使得包装的前表面朝向辐射源。 然后将包装暴露于辐射。

    METHODS, SYSTEMS, AND DEVICES FOR POSITIONING SUTURES FOR CLOSING AN OPENING IN TISSUE

    公开(公告)号:US20250072887A1

    公开(公告)日:2025-03-06

    申请号:US18954081

    申请日:2024-11-20

    Inventor: Aaron M. Fortson

    Abstract: A closure system for closing an opening in tissue, the closure system including a closure device and a knot replacement device configured to position a suture lock on a suture. The closure device includes a housing, a needle actuation handle cooperating with the housing, a first hollow needle selectively movable by the needle actuation handle and operatively cooperating with a suture anchor frictionally engaged with a slot and a lumen of the first hollow needle and coupled to a suture. A portion of the suture anchor rests along an outer surface of the first hollow needle as the first hollow needle is advanced through tissue adjacent the opening.

    Tissue Fixation Devices And Methods
    279.
    发明申请

    公开(公告)号:US20250064457A1

    公开(公告)日:2025-02-27

    申请号:US18947063

    申请日:2024-11-14

    Inventor: Michael F. Wei

    Abstract: The present disclosure describes tissue gripping devices, systems, and methods for gripping mitral valve tissue during treatment of a mitral valve and while a tissue fixation device is implanted in the mitral valve. The tissue gripping device includes a flexible member and one or more tissue gripping members coupled to one or more arms of the flexible member. The flexible member is formed from a shape-memory material, such as nitinol, and the tissue gripping member(s) are formed from a material that is more rigid than the shape-memory material. The tissue gripping member(s) are attached to the flexible member by threading or looping suture lines around and/or through the tissue gripping member(s) and the flexible member and/or by applying a cover material to the tissue gripping device to hold the tissue gripping member(s) against the flexible member.

Patent Agency Ranking