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公开(公告)号：US11173298B2
公开(公告)日：2021-11-16
申请号：US16524795
申请日：2019-07-29
摘要： 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; and an actuation mechanism operatively coupled to the coil element, the actuation mechanism configured to move the coil element between the first and second configurations.
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2.发明授权公开(公告)号：US11166647B2
公开(公告)日：2021-11-09
申请号：US15064265
申请日：2016-03-08
发明人： Robert Splinter
摘要： A laser catheter with a pressure sensor is provided according to embodiments of the invention. The pressure sensor may be coupled with the distal end of the laser catheter and may comprise any of various piezoelectric materials, for example Polyvinylidene Difluoride (PVDF). In various embodiments of the invention the pressure sensor is configured to detect pressure longitudinally and coaxially. The pressure sensor may provide an electric potential that is proportional to the vessel pressure and may be used to monitor and/or adjust laser parameters. In other embodiments the results from the pressure sensor may be used to determine the vessel size and/or the type of material being ablated.
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公开(公告)号：US11058492B2
公开(公告)日：2021-07-13
申请号：US15659064
申请日：2017-07-25
发明人： Kenneth P. Grace , Thomas Triffo , James Cezo
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 created within a sheath to disrupt intimal and medial calcium within the vasculature.
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公开(公告)号：US11000333B2
公开(公告)日：2021-05-11
申请号：US13800864
申请日：2013-03-13
摘要： A laser catheter assembly is provided that includes a plurality of laser active fibers, each fiber having a substantially non-circular fiber cross-section.
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公开(公告)号：US10987167B2
公开(公告)日：2021-04-27
申请号：US14152334
申请日：2014-01-10
发明人： Jacob Keeler , Melissa Brookshier
摘要： In some embodiments, without limitation, the invention comprises a catheter having an elongated housing with a channel disposed therein. A laser delivery member is movable and at least partially disposed within the channel. A ramp is disposed within the housing at an angle to its central axis and proximate to its distal end. The ramp is adapted to move the distal end of the laser delivery member outwardly from the central axis of the housing. A guidewire biases the distal end of the laser delivery member generally inwardly toward the central axis of the housing. In some embodiments, without limitation, the offset of the central axis of the tip of the laser delivery member from the central axis of the housing is determined by adjusting the extent to which the laser delivery member travels on the ramp, and disposition of the laser delivery member on the guidewire maintains the offset tip substantially parallel to the central axis of the housing. Thus, in accordance with the invention, the distal end of the laser delivery member may be biased in a desired direction or offset, permitting ablation of an area larger than the area of the distal end of the catheter.
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公开(公告)号：US10959699B2
公开(公告)日：2021-03-30
申请号：US15922636
申请日：2018-03-15
发明人： Kevin D. Taylor , Ken Harlan , James Nye , Robert Splinter , Jacob Keeler , Chris Hebert , Wade Bowe
摘要： Embodiments of the present invention include a laser catheter that includes a catheter body, a light guide, and a distal tip that extends beyond the exit aperture of the light guide. In some embodiments, an imaging device is disposed on the distal tip such that the imaging device is distal relative to the exit aperture of the light guide. In some embodiments, the imaging device can be gated to record images during and or slightly beyond periods when the laser catheter is not activated.
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公开(公告)号：US10932812B2
公开(公告)日：2021-03-02
申请号：US15942322
申请日：2018-03-30
发明人： Weston H. Lee , Ryan M. Sotak
IPC分类号： A61B17/3207 , A61B17/32 , A61B17/00 , A61B17/3205 , A61N1/05 , A61B90/00 , A61B17/34
摘要： Devices for removing implanted objects from body vessels are provided. A device includes a sheath assembly having a cutting tip. The cutting tip includes a cutting surface that is adapted to cut tissue coupled to an implanted object as the cutting tip rotates. The sheath assembly further includes an outer shield carried outside of the cutting tip. The outer shield includes a distal opening, and the outer shield is translatable relative to the cutting tip from a first position to a second position and vice versa. In the first position the cutting surface of the cutting tip is disposed within the outer shield, and in the second position the cutting tip extends through the distal opening and the cutting surface is at least partially disposed outside of the outer shield.
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公开(公告)号：US10799293B2
公开(公告)日：2020-10-13
申请号：US15281981
申请日：2016-09-30
摘要： 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.
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公开(公告)号：US10709872B2
公开(公告)日：2020-07-14
申请号：US15725089
申请日：2017-10-04
发明人： Jeffery B. Alvarez , Christine Godleski , Wade A. Bowe , Rob Carver , Paola A. Dwelle , Jeff Lindstrom , David S. Nevrla , Shahriar Matin , Matthew M. Magee
摘要： Embodiments of the invention are directed towards a rapid exchange catheter configured for insertion into a subintimal space and crossing an occlusion in a subintimal space. The catheter includes a proximal end, a distal end, a first lumen configured to receive a first wire, the first lumen extending longitudinally through a least a lateral port of the catheter, and a second lumen having at least a portion distal of the lateral port and extending through at least the distal end of the catheter. The catheter also includes an exchange port, arranged on an exterior portion of the catheter configured to receive a second wire and second rapid exchange port in communication with the second lumen. Moreover, other embodiments of the invention are directed towards methods for using the rapid exchange catheter to cross an obstruction in a vessel, e.g., a total or partial occlusion, in a subintimal space.
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10.发明授权公开(公告)号：US10517673B2
公开(公告)日：2019-12-31
申请号：US15850456
申请日：2017-12-21
发明人： Kenneth P. Grace , George Woodrow Burton , Gregory Conway Ebbets , Nolan Miller Horrall , Brandon Thomas Hendrick , Thomas Kelby Triffo , Blaine Andrew Schneider , Joseph Nicholas Matterson
摘要： Laser energy delivery devices and methods are provided. A laser energy delivery device for providing treatment to a subject may include a coupling adapted to couple to a laser energy generator. A sheath is coupled to the coupling, the sheath including a distal end adapted to be disposed in the subject. A plurality of transport members are carried by the coupling and the sheath, the plurality of transport members being adapted to receive laser energy at the coupling, transmit laser energy through the sheath, and deliver laser energy to the subject. A sensor is adapted to detect transmission of laser energy through at least one of the plurality of transport members.
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