Medical devices with antithrombogenic coatings

    公开(公告)号:US10722690B2

    公开(公告)日:2020-07-28

    申请号:US15389420

    申请日:2016-12-22

    Abstract: Pressure sensing guidewires are disclosed. The pressure sensing guidewires may include a tubular member having a proximal portion and a distal portion. The distal portion may have a plurality of slots formed therein. The distal portion may have a first wall thickness along a first region and a second wall thickness smaller than the first wall thickness along a second region. A pressure sensor may be disposed within the distal portion of the tubular member and housed within the second region. An anti-thrombogenic coating may be disposed on an inner surface, an outer surface, or both of the second region of the distal portion of the tubular member.

    TREATMENT OF VASCULAR LESIONS
    22.
    发明申请

    公开(公告)号:US20190282250A1

    公开(公告)日:2019-09-19

    申请号:US16351186

    申请日:2019-03-12

    Abstract: An ultrasound catheter is adapted for placement within a blood vessel having a vessel wall and is adapted for treating a vascular lesion within or adjacent the vessel wall. The ultrasound catheter includes an elongate shaft extending from a distal region to a proximal region and an ultrasound transducer that is disposed within the distal region of the elongate shaft, the ultrasound transducer adapted to impart near-field, acoustic pressure waves upon the vascular lesion in order to mechanically modify the vascular lesion.

    CATHETER WITH SKIVED TUBULAR MEMBER
    24.
    发明申请
    CATHETER WITH SKIVED TUBULAR MEMBER 审中-公开
    带有滑动管状构件的导管

    公开(公告)号:US20130331782A1

    公开(公告)日:2013-12-12

    申请号:US13969194

    申请日:2013-08-16

    Abstract: An elongate shaft of a medical catheter including a thermoset polymeric tubular member including a skived distal portion. The skived distal portion includes a distally extending trough having a convex surface and a concave surface. A thermoplastic tubular sleeve may be positioned over at least a portion of the skived distal portion of the thermoset polymeric tubular member. In some instances, the thermoplastic tubular sleeve includes a crescent-shaped tubular portion defining a crescent-shaped lumen. The trough of the skived distal portion may extend through the crescent-shaped lumen. The thermoplastic tubular sleeve is thermally bonded to the inner and outer tubular members of a distal section of the elongate shaft at a guidewire port joint.

    Abstract translation: 医疗导管的细长轴包括热固性聚合物管状构件,所述热固性聚合物管状构件包括刮削的远端部分。 切割的远侧部分包括具有凸表面和凹表面的远侧延伸槽。 热塑性管状套筒可以定位在热固性聚合物管状构件的经过磨削的远端部分的至少一部分上方。 在一些情况下,热塑性管状套管包括限定新月形管腔的月牙形管状部分。 磨碎的远端部分的槽可以延伸穿过新月形管腔。 热塑性管状套管在导丝端口接头处热连接到细长轴的远端部分的内部和外部管状构件。

    Spectroscopic tissue identification for balloon intravascular lithotripsy guidance

    公开(公告)号:US12207870B2

    公开(公告)日:2025-01-28

    申请号:US17343059

    申请日:2021-06-09

    Abstract: A catheter system (100) for placement within a treatment site (106) at a vessel wall (208A) or a heart valve includes an energy source (124), a balloon (104), an energy guide (122A), and a tissue identification system (142). The energy source (124) generates energy. The balloon (104) is positionable substantially adjacent to the treatment site (106). The balloon (104) has a balloon wall (130) that defines a balloon interior (146). The balloon (104) is configured to retain a balloon fluid (132) within the balloon interior (146). The energy guide (122A) is configured to receive energy from the energy source (124) and guide the energy into the balloon interior (146) so that plasma is formed in the balloon fluid (132) within the balloon interior (146). The tissue identification system (142) is configured to spectroscopically analyze tissue within the treatment site (106). A method for treating a treatment site (106) within or adjacent to a vessel wall (208A) or a heart valve can utilize any of the catheter systems (100) described herein.

    Propulsion system for inertial energy transfer to disrupt vascular lesions

    公开(公告)号:US11950799B2

    公开(公告)日:2024-04-09

    申请号:US17847874

    申请日:2022-06-23

    CPC classification number: A61B17/32037 A61B2017/22051

    Abstract: Embodiments herein relate to systems and methods for intravascular lesion disruption. In an embodiment, a catheter system for imparting pressure to induce fractures upon a vascular lesion within or adjacent a blood vessel wall is included. The system includes a catheter configured to advance to a vascular lesion, the catheter including an elongate shaft that defines at least a first orifice for fluid flow; a balloon, coupled to the elongate shaft, that surrounds the first orifice where the balloon can expand from a collapsed configuration suitable for advancing the catheter through a patient's vasculature to a first expanded configuration suitable for anchoring the catheter in position relative to a treatment site; and a propulsion system configured to propel a fluid from the first orifice toward the balloon wall to create an inertial impulse in a vessel wall to transfer momentum to the vascular lesion. Other embodiments are also included herein.

    ACOUSTIC TISSUE IDENTIFICATION FOR BALLOON INTRAVASCULAR LITHOTRIPSY GUIDANCE

    公开(公告)号:US20220008130A1

    公开(公告)日:2022-01-13

    申请号:US17365451

    申请日:2021-07-01

    Abstract: A catheter system (100) for treating a treatment site (106) within or adjacent to a vessel wall (208A) or a heart valve within a body (107) of a patient (109) includes an energy source (124), a balloon (104), an energy guide (122A), and a tissue identification system (142). The energy source (124) generates energy. The balloon (104) is positionable substantially adjacent to the treatment site (106). The balloon (104) includes a balloon wall (130) that defines a balloon interior (146). The balloon (104) can be configured to retain a balloon fluid (132) within the balloon interior (146). The energy guide (122A) is configured to receive energy from the energy source (124) and guide the energy into the balloon interior (146) so that plasma bubbles (134) are formed in the balloon fluid (132) within the balloon interior (146). The tissue identification system (142) can be configured to acoustically analyze tissue within the treatment site (106).

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