Surgical instrument including an inwardly deflecting cutting tip for removing an implanted object

    公开(公告)号:US10524817B2

    公开(公告)日:2020-01-07

    申请号:US14577976

    申请日:2014-12-19

    Inventor: Kenneth P. Grace

    Abstract: A device for removing an implanted object from a body vessel includes an actuator having an elongated sheath extending therefrom, the elongated sheath including a proximal portion and a distal portion. A tubular outer member has a proximal end attached to the distal portion of the elongated sheath, with a ramped surface at a distal end of the tubular outer member which constricts a diameter of a bore formed in the tubular outer member. A tubular inner member is located within the tubular outer member, the tubular inner member including a proximal end operably connected to the actuator and a distal end opposite the proximal end, the distal end of the tubular inner member including a plurality of resiliently flexible blades positioned to interact with the ramped surface of the tubular outer member such that the ramped surface is operable to deflect the resiliently flexible blades radially inwardly as the tubular inner member is advanced distally within the tubular outer member.

    Collapsing coil coupling for lead extension and extraction

    公开(公告)号:US10391300B2

    公开(公告)日:2019-08-27

    申请号:US15649137

    申请日:2017-07-13

    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.

    OPTICAL ASSEMBLY FOR LASER GENERATOR
    33.
    发明申请

    公开(公告)号:US20190254746A1

    公开(公告)日:2019-08-22

    申请号:US15900258

    申请日:2018-02-20

    Abstract: Methods and devices for an optical assembly for a laser generator comprise: a laser source producing a first beam of light and an optical assembly. The optical assembly comprises a prism. The prism has a bottom surface configured to receive a first beam at an incoming angle of incidence relative to a first surface normal, and a hypotenuse surface configured to transmit, at an exit angle relative to a second surface normal, a second beam having a second aspect ratio. The optical assembly further comprises a plano-convex lens configured to transmit the second beam to a coupler. The coupler comprises a first coupling plane at a first distance from the plano-convex lens and a second coupling plane at a second distance from the plano-convex lens. The combination of the prism and the plano-convex lens is configured to change the beam divergence, so that the first coupling plane has a third aspect ratio and the second coupling plane has a fourth aspect ratio.

    Collapsing coil coupling for lead extension and extraction

    公开(公告)号:US09731113B2

    公开(公告)日:2017-08-15

    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.

    MEDICAL DEVICE FOR REMOVING AN IMPLANTED OBJECT

    公开(公告)号:US20170172622A1

    公开(公告)日:2017-06-22

    申请号:US15442006

    申请日:2017-02-24

    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.

    Medical device for removing an implanted object

    公开(公告)号:US09603618B2

    公开(公告)日:2017-03-28

    申请号:US14627851

    申请日:2015-02-20

    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
    39.
    发明申请
    MEDICAL DEVICE FOR REMOVING AN IMPLANTED OBJECT USING LASER CUT HYPOTUBES 有权
    用于使用激光切割电极去除植入物体的医疗装置

    公开(公告)号:US20160361080A1

    公开(公告)日:2016-12-15

    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.

    Abstract translation: 用于将植入物体(例如起搏器引线)从患者血管系统中围绕该物体的组织分离的方法和装置。 具体地说,手术装置包括手柄,细长内护套和圆形切割刀片,在致动手柄时从护套的远端延伸。 圆形切割刀片被配置为接合植入的引线周围的组织并且以取芯方式切割这样的组织,因为外科手术装置沿着引线的长度平移,从而允许引线以及保留附着到引线的任何组织, 进入设备的细长轴。 手术装置在手柄组件中具有桶形凸轮圆柱体,其将叶片的旋转和在外护套组件的尖端中的单独的凸轮机构赋予并控制叶片的伸缩。 筒状凸轮圆筒和凸轮机构协作以使刀片在第一方向上旋转并且由于手柄的第一致动而在外护套中延伸并从外套中缩回并且在第二方向上旋转并且在外护套中延伸和缩回 由于手柄的第二次致动。 内护套和外护套由激光切割海波管构成,从而允许外科装置,特别是护套组件具有较小的轮廓,用于导航较小尺寸的脉管系统。

    Laser ablation catheter
    40.
    发明授权
    Laser ablation catheter 有权
    激光消融导管

    公开(公告)号:US09456872B2

    公开(公告)日:2016-10-04

    申请号:US13800728

    申请日:2013-03-13

    Abstract: A system and devices for ablation and removal of occlusions from blood vessels is provided. Laser cutting 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 at 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。 激光切割系统和机械切割系统设置在导管装置中,切割系统可操作以消融,切割,移除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去除通常对应于导管的内腔的尺寸的阻塞的至少一部分的远端特征。

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