Controller to select optical channel parameters in a catheter

    公开(公告)号:US10758308B2

    公开(公告)日:2020-09-01

    申请号:US13826053

    申请日:2013-03-14

    Inventor: Kenneth P. Grace

    Abstract: A system can include a microprocessor executable controller configured, based on one or more of total fiber active area of a laser catheter, imaging information regarding the target and/or non-target endovascular structure(s), target endovascular structure characterization information, current location and/or orientation of a distal tip of the laser catheter, and area of contact of the distal tip with the target and/or non-target endovascular structure to select at least one of a fiber active area for each optical channel, a number of optical channels, a configuration of fibers in an optical channel, an optical channel to be irradiated, and an ordering of optical channel irradiation.

    Expanding coil coupling for lead extension and extraction

    公开(公告)号:US10576274B2

    公开(公告)日:2020-03-03

    申请号:US15856355

    申请日:2017-12-28

    Inventor: Kenneth P. Grace

    Abstract: A device for extending a lead according to some embodiments includes a body, a tubular member coupled to the body, the tubular member comprising an outer surface, wherein the outer surface is sized to insert into an inner lumen of a lead, the tubular member is movable between a first configuration in which the tubular member slides into the lead, and a second configuration in which at least a portion of the tubular member expands to engage an inner surface of the lead; and, an actuation mechanism operatively coupled to the tubular member, the actuation mechanism configured to move the tubular member between the first configuration and second configuration.

    Medical device for removing an implanted object

    公开(公告)号:US10052129B2

    公开(公告)日:2018-08-21

    申请号:US15462357

    申请日:2017-03-17

    Abstract: 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.

    Medical device for removing an implanted object using laser cut hypotubes

    公开(公告)号:US09980743B2

    公开(公告)日:2018-05-29

    申请号:US15249206

    申请日:2016-08-26

    Abstract: 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 inner 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. The inner sheath and outer sheath are constructed of laser-cut hypotubes, thereby allowing the surgical device, particularly the sheath assembly, to have a smaller profile for navigating smaller sized vasculature.

    Retractable blade for lead removal device

    公开(公告)号:US09668765B2

    公开(公告)日:2017-06-06

    申请号:US13834405

    申请日:2013-03-15

    CPC classification number: A61B17/32053 A61B17/320016 A61N2001/0578

    Abstract: 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 tissue separating device includes a handle, an elongate sheath and a circular cutting blade that may extend 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 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 tissue separating device includes a cam mechanism at the distal portion of the sheath that allows the user of the device to more accurately control the extension and rotation of the cutting blade upon being actuated by the handle.

    LASER ABLATION CATHETER
    9.
    发明申请
    LASER ABLATION CATHETER 审中-公开
    激光吸管

    公开(公告)号:US20170014188A1

    公开(公告)日:2017-01-19

    申请号:US15281981

    申请日:2016-09-30

    Abstract: A system and devices for ablation and removal of occlusions from blood vessels is provided. Laser culling systems and mechanical cutting systems are provided in catheter devices, the cutting systems operable to ablate, cut, dislodge, and otherwise remove occlusions within a blood vessel that may limit or prevent proper circulation. Catheter systems comprise distal end features adapted to cut and remove al least portions of an occlusion that generally correspond to dimensions of an inner lumen of a catheter.

    Abstract translation: 提供了用于消融和去除血管闭塞的系统和装置。 激光剔除系统和机械切割系统被提供在导管装置中,切割系统可操作以消融,切割,移走和以其他方式去除可能限制或阻止适当循环的血管内的闭塞。 导管系统包括适于切割和移除通常对应于导管的内腔的尺寸的闭塞的至少部分的远端特征。

    COLLAPSING COIL COUPLING FOR LEAD EXTENSION AND EXTRACTION
    10.
    发明申请
    COLLAPSING COIL COUPLING FOR LEAD EXTENSION AND EXTRACTION 有权
    拉伸线圈联轴器用于引线延伸和提取

    公开(公告)号:US20160184576A1

    公开(公告)日:2016-06-30

    申请号:US14954169

    申请日:2015-11-30

    CPC classification number: A61N1/05 A61N2001/0578

    Abstract: A device for extending a lead according to some embodiments includes a body, a coil element coupled to the body, the body configured to cover the coil element during use, the coil element comprising an inner lumen sized to receive an outer surface of a lead, the coil element is movable between a first configuration in which the coil element slides over the lead, and a second configuration in which at least some coils grip the outer surface of the lead; an actuation mechanism operatively coupled to the coil element, the actuation mechanism configured to move the coil element between the first and second configurations; and a tether coupled to the lead via the body, the coil element, and/or actuation mechanism, the tether configured to extend further proximally than a proximal-most end of the lead and configured to transfer tension force applied to the tether to the lead.

    Abstract translation: 根据一些实施例的用于延伸引线的装置包括主体,耦合到主体的线圈元件,构造成在使用期间覆盖线圈元件的主体,线圈元件包括尺寸适于接纳引线外表面的内腔, 线圈元件可在其中线圈元件在引线上滑动的第一配置和第二配置之间移动,其中至少一些线圈夹持引线的外表面; 致动机构,其可操作地耦合到所述线圈元件,所述致动机构构造成在所述第一和第二构造之间移动所述线圈元件; 以及经由身体,线圈元件和/或致动机构联接到引线的系绳,所述系绳构造成比引线的最近端延伸得更远,并被配置成将施加到系绳的张力传递到引线 。

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