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    MEDICAL DEVICE FOR REMOVING AN IMPLANTED OBJECT
    82.
    发明申请
    MEDICAL DEVICE FOR REMOVING AN IMPLANTED OBJECT 有权

    公开(公告)号：US20170157392A1

    公开(公告)日：2017-06-08

    申请号：US15406033

    申请日：2017-01-13

    申请人： The Spectranetics Corporation

    发明人： Robert CARVER ,  Weston H. LEE ,  Brian E. KAGARISE ,  Bruce A. HOO ,  Peter Wilbur GLEASON ,  Phillip Charles HALBERT

    IPC分类号： A61N1/05 ,  A61B17/32 ,  A61B17/34

    CPC分类号： A61B17/3468 ,  A61B17/32 ,  A61B17/32002 ,  A61B17/3205 ,  A61B17/32053 ,  A61B17/320758 ,  A61B17/50 ,  A61B2017/320032 ,  A61N1/0573 ,  A61N2001/0578

    摘要： Methods and devices for separating an implanted object, such as a pacemaker lead, from tissue surrounding such object in a patient's vasculature system. Specifically, the surgical device includes a handle, an elongate sheath and a circular cutting blade that extends from the distal end of the sheath upon actuating the handle. The circular cutting blade is configured to engage the tissue surrounding an implanted lead and cut such tissue in a coring fashion as the surgical device translates along the length of the lead, thereby allowing the lead, as well as any tissue remaining attached to the lead, to enter the device's elongate shaft. The surgical device has a barrel cam cylinder in the handle assembly that imparts rotation of the blade and a separate cam mechanism in the tip of outer sheath assembly that imparts and controls the extension and retraction of the blade. The barrel cam cylinder and cam mechanism cooperate to cause the blade to rotate in a first direction and extend from and retract in the outer sheath due to a first actuation of the handle and to rotate in a second direction and extend and retract in the outer sheath due to a second actuation of the handle.

    Expandable laser catheter
    84.
    发明授权
    Expandable laser catheter 有权
    可扩展激光导管

    公开(公告)号：US09566116B2

    公开(公告)日：2017-02-14

    申请号：US15002785

    申请日：2016-01-21

    申请人： The Spectranetics Corporation

    发明人： Thomas R. Winston ,  John M. Neet

    IPC分类号： A61B18/20 ,  A61B18/24 ,  A61M25/00 ,  A61M29/02 ,  A61B17/22 ,  A61B18/22 ,  A61M25/10 ,  A61B18/00

    CPC分类号： A61B18/245 ,  A61B18/24 ,  A61B2017/22051 ,  A61B2018/00214 ,  A61B2018/00577 ,  A61B2018/2211 ,  A61B2018/2238 ,  A61B2018/2266 ,  A61B2018/2288 ,  A61M25/0021 ,  A61M25/0023 ,  A61M25/1002 ,  A61M29/02 ,  A61M2025/0024 ,  A61M2025/1004

    摘要： Expandable laser catheters for utilizing laser energy to remove obstructions from body passages are described. In one embodiment, the laser catheter includes a shaftway having a distal end including a flexible portion configured in a series of radial folds. Multiple optical fibers, configured to transmit laser energy, extend along the shaftway and are attached to the flexible portion. An inflatable, ring-shaped balloon is attached to the catheter within the flexible portion. In use, the catheter is inserted into a body passage such as an artery, and advanced until the distal end is adjacent to an obstruction. The balloon is inflated to expand the flexible portion and to bring the optical fibers nearer the inner wall of the body passage. Laser energy is directed by the optical fibers toward targeted regions of the obstruction, As the catheter is advanced and the process repeated, a core is formed from the obstruction and contained within the flexible portion. The flexible portion is then contracted to hold the core, and the core is removed from the body passage by withdrawing the catheter.

    摘要翻译： 描述了用于利用激光能量去除身体通道中的障碍物的可扩展激光导管。 在一个实施例中，激光导管包括具有远端的轴通道，该远端包括构造成一系列径向折叠的柔性部分。 被配置为传递激光能量的多个光纤沿着轴线延伸并附接到柔性部分。 可膨胀的环形气囊在柔性部分内连接到导管。 在使用中，将导管插入诸如动脉的身体通道中，并且前进直到远端与障碍物相邻。 气球膨胀以使柔性部分膨胀并使光纤更接近身体通道的内壁。 激光能量被光纤引导到障碍物的目标区域。当导管前进并且重复该过程时，从障碍物形成芯并且包含在柔性部分内。 然后将柔性部分收缩以保持芯部，并且通过抽出导管将芯部从身体通道移除。

    STABILIZATION DEVICE ASSISTED LEAD TIP REMOVAL
    86.
    发明申请
    STABILIZATION DEVICE ASSISTED LEAD TIP REMOVAL 审中-公开
    稳定装置辅助引线提除

    公开(公告)号：US20160354104A1

    公开(公告)日：2016-12-08

    申请号：US15241673

    申请日：2016-08-19

    申请人： The Spectranetics Corporation

    发明人： Brandon Thomas HENDRICK

    IPC分类号： A61B17/3205 ,  A61M25/10 ,  A61B17/50 ,  A61N1/05

    CPC分类号： A61B17/3468 ,  A61B17/3205 ,  A61B17/50 ,  A61B2017/320064 ,  A61M25/10 ,  A61M2025/1081 ,  A61N1/056 ,  A61N1/0573 ,  A61N1/0587 ,  A61N1/059 ,  A61N2001/0578

    摘要： Lead tip removal is accomplished by first stabilizing an area around the lead tip attachment site in the heart wall. A balloon located at the tip of the lead when inflated expands substantially perpendicular to the lead, stabilizing the area around the lead tip. Upon further inflation, the balloon expands substantially parallel with the lead, causing the lead tip to pull away from the heart wall. In another embodiment, a sheath is inserted over the lead and advanced to the heart wall. A passive or active stabilization device is attached to the sheath tip to stabilize the area around the lead tip. In another embodiment, a balloon is located at the tip of the sheath that, when inflated, expands substantially perpendicular to the lead, stabilizing the area around the lead tip. The lead tip is removed with less force due to the stabilization provided to the lead tip area.

    摘要翻译： 通过首先使围绕心脏壁的引线附着部位的区域稳定来实现引线尖端去除。 当充气时位于引线尖端处的气囊基本上垂直于引线膨胀，稳定了引线端周围的区域。 在进一步膨胀时，气囊基本上与铅平行地膨胀，导致引线尖端远离心壁。 在另一个实施例中，护套插入在引线上并前进到心脏壁。 被动或主动稳定装置连接到护套尖端以稳定引线尖端周围的区域。 在另一个实施例中，气囊位于护套的尖端，当充气时，气囊基本上垂直于导线膨胀，从而稳定了引线头周围的区域。 由于提供给引线尖端区域的稳定性，引线尖端以较小的力移除。

    LASER ASSISTED THROMBOLYSIS
    88.
    发明申请
    LASER ASSISTED THROMBOLYSIS 审中-公开
    激光辅助血栓形成

    公开(公告)号：US20160228187A1

    公开(公告)日：2016-08-11

    申请号：US14916411

    申请日：2014-09-02

    申请人： Justus GROSS ,  THE SPECTRANETICS CORPORATION

    发明人： Justus Gross

    IPC分类号： A61B18/24 ,  A61M25/00

    摘要： The present disclosure relates to methods and systems for removing a vascular obstruction in a subject using a combination ofthrombolytic and laser ablation therapy. Treatment methods include positioning a catheter adjacent to an obstruction within a vessel of a subject. A portion of the obstruction may be ablated by delivering laser energy through the optical fibers to the distal end of the catheter, where the optical fibers are exposed, and circulating a fluid containing one or more thrombolytic agents to a remaining portion of the obstruction for a predetermined amount time. Fluid containing one or more thrombolytic agents capable of dissolving a remaining portion of the obstruction may be circulated through the fluid delivery lumen and removed through the fluid removal lumen.

    摘要翻译： 本公开涉及使用溶栓和激光消融治疗的组合来去除受试者中的血管阻塞的方法和系统。 治疗方法包括将导管邻近受试者血管内的梗阻定位。 障碍物的一部分可以通过将激光能量通过光纤传递到导管的远端而消融，其中光纤被暴露，并且将含有一种或多种溶栓剂的流体循环到梗阻的剩余部分 预定时间。 含有一种或多种能够溶解阻塞物的剩余部分的溶栓剂的流体可循环通过流体输送腔并通过流体移除管腔移除。

    LASER-INDUCED FLUID FILLED BALLOON CATHETER
    90.
    发明申请
    LASER-INDUCED FLUID FILLED BALLOON CATHETER 审中-公开
    激光诱导液填充气泡导管

    公开(公告)号：US20160184023A1

    公开(公告)日：2016-06-30

    申请号：US14984050

    申请日：2015-12-30

    申请人： The Spectranetics Corporation

    发明人： Kenneth P. Grace ,  Thomas Triffo ,  James Cezo

    IPC分类号： A61B18/26 ,  A61B18/24

    CPC分类号： A61B18/26 ,  A61B17/22 ,  A61B18/245 ,  A61B2017/22024 ,  A61B2018/00404 ,  A61B2018/263

    摘要： The present disclosure relates generally to the use of medical devices for the treatment of vascular conditions. In particular, the present disclosure provides devices and methods for using laser-induced pressure waves to disrupt vascular blockages. The present disclosure not only provides devices and methods for using laser-induced pressure waves to disrupt vascular blockages, but the present disclosure also provides devices and method for assisting the guidewire in penetrating an occlusion, devices and method for using a sealable valve in the tip of the balloon catheter to reduce the overall size and diameter of the balloon catheter, thereby allowing the balloon catheter to penetrate smaller size blood vessels and devices and method that use stationary light absorbing material in lieu of and/or in combination of using liquid medium that flows into a balloon for a balloon catheter. Given the persistence of coronary artery disease (CAD) and peripheral artery disease (PAD), there remains a need for improved therapeutic methods designed not only to reduce vascular blockages in the short term, but also to prevent future complications such as restenosis.

    摘要翻译： 本公开一般涉及医疗装置用于治疗血管病症的用途。 特别地，本公开提供了使用激光诱导的压力波来破坏血管阻塞的装置和方法。 本公开不仅提供了使用激光诱导的压力波来破坏血管阻塞的装置和方法，而且本公开还提供了用于辅助导丝穿透闭塞的装置和方法，在尖端中使用可密封的阀的装置和方法 以减小气囊导管的整体尺寸和直径，从而允许气囊导管穿透更小尺寸的血管，并且使用固定光吸收材料替代和/或组合使用液体介质的装置和方法， 流入气囊用于球囊导管。 鉴于冠状动脉疾病（CAD）和外周动脉疾病（PAD）的持续存在，仍然需要改进的治疗方法，不仅在短期内设计减少血管阻塞，而且还防止未来并发症如再狭窄。