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45 条记录 (耗时 0.025 秒)

    Image-guided laser catheter
    31.
    发明申请
    Image-guided laser catheter 有权
    图像引导激光导管

    公开(公告)号：US20060241572A1

    公开(公告)日：2006-10-26

    申请号：US11315546

    申请日：2005-12-22

    申请人： Gan Zhou

    发明人： Gan Zhou

    IPC分类号： A61B18/18

    CPC分类号： A61B18/24 ,  A61B8/12 ,  A61B8/4483 ,  A61B2018/266 ,  A61B2090/3784 ,  G01S15/8965 ,  G10K15/046

    摘要： A catheter and a console for a catheter. In one embodiment, the catheter includes: (1) a wall having a substantially annular cross-section and surrounding a bore, (2) a plurality of optical fibers associated with the wall and terminating at a distal end of the wall in end faces of differing, non-perpendicular orientation with respect to longitudinal axes of the plurality of optical fibers and (3) photoacoustic layers coupled to at least some of the end faces and configured to generate an ultrasonic signal in response to laser light transmitted along the plurality of optical fibers.

    摘要翻译： 导管和导管的控制台。 在一个实施例中，导管包括：（1）具有基本上环形的横截面并围绕孔的壁，（2）与壁相关联的多个光纤，并且在壁的远端终止于壁的远端 相对于多根光纤的纵向轴线的不同的非垂直取向，和（3）耦合到至少一些端面的光声层，并且被配置为响应于沿着多个光纤传输的激光产生超声波信号 纤维。

    Flexible flow apparatus and method for the disruption of occlusions
    32.
    发明授权
    Flexible flow apparatus and method for the disruption of occlusions 失效
    柔性流动装置和堵塞方法

    公开(公告)号：US06440124B1

    公开(公告)日：2002-08-27

    申请号：US09676131

    申请日：2000-09-29

    申请人： Victor C. Esch ,  Paul S. Jackson

    发明人： Victor C. Esch ,  Paul S. Jackson

    IPC分类号： A61B1818

    CPC分类号： A61B18/26 ,  A61B17/2202 ,  A61B18/245 ,  A61B2017/00154 ,  A61B2017/00176 ,  A61B2017/22084 ,  A61B2018/2211 ,  A61B2018/266

    摘要： The invention encompasses methods and flexible apparatus for delivering radiation energy to a radiation-absorbing fluid within the apparatus to generate a series of expanding and collapsing bubbles therein, and thereby generate flow in a fluid surrounding the apparatus. Effective fluid flow is obtained via at least one optical fiber, disposed within the apparatus near a distal opening therein, that, when fired, tends to pump fluid with respect to the apparatus, and at least one other optical fiber, disposed within the apparatus in the vicinity of a side opening thereof, that, when fired, tends to agitate fluid near its distal end. These pumping and agitative actions cause a net fluid motion that is particularly effective in disrupting a partial or total occlusion in a body passage, such as a blood vessel, within which the apparatus is operated. While a relatively low level of radiation energy or power may be used for such applications, it may be desirable to increase the radiation energy or power to obtain greater disruption effects. The apparatus is adapted to provide a cooling medium to the body passage to avoid causing any substantial thermal injury to the walls of the passage, particularly when the apparatus is operated using the higher power levels within a suitable power range.

    摘要翻译： 本发明包括用于将辐射能传递到装置内的辐射吸收流体以在其内产生一系列膨胀和塌陷气泡的方法和柔性装置，从而在装置周围的流体中产生流动。 通过至少一个光纤获得有效的流体流动，该光纤设置在靠近其中的远端开口处的设备内，当被烧制时，倾向于将流体相对于设备泵送，并且至少一个其它光纤被布置在设备内 其侧开口附近，当被烧制时，倾向于在其远端附近搅动流体。 这些泵送和剧烈的作用引起净流体运动，其特别有效地破坏了体内通道（例如血管）中的部分或完全闭塞，在该通道内操作该装置。 虽然可以将相对较低水平的辐射能量或功率用于这种应用，但是可能期望增加辐射能量或功率以获得更大的破坏效果。 该设备适于向身体通道提供冷却介质，以避免对通道的壁造成任何实质的热损伤，特别是当在适当的功率范围内使用较高功率水平操作设备时。

    Surgical instrument with laser target
    33.
    发明授权
    Surgical instrument with laser target 失效
    带激光靶的手术器械

    公开(公告)号：US5906611A

    公开(公告)日：1999-05-25

    申请号：US901302

    申请日：1997-07-28

    申请人： Jack Murray Dodick ,  Reinhardt Thyzel

    发明人： Jack Murray Dodick ,  Reinhardt Thyzel

    IPC分类号： A61B18/20 ,  A61B18/26 ,  A61F9/007 ,  A61F9/011 ,  A61M1/00 ,  A61B17/36

    CPC分类号： A61F9/008 ,  A61B18/26 ,  A61B2018/266 ,  A61F2009/0087 ,  A61F2009/00887

    摘要： A surgical needle with an open distal port at which tissue to be fractured is positioned contains an optical fiber for providing pulses of laser energy and a titanium target that receives these pulses. The target converts the energy in the electromagnetic pulses to shockwaves that impinge on the tissue at the port causing the tissue to fracture. The target has one or more steps such that vaporization of the target by the laser pulses leaves a surface which directly faces the port so that the continued conversion of laser energy to mechanical shockwaves will provide shockwaves that are not blocked in traveling to the port at which the tissue is located.

    摘要翻译： 具有打开的远端端口的手术针头，在该远端端口上定位要断裂的组织，包含用于提供激光能量的脉冲的光纤和接收这些脉冲的钛靶。 目标将电磁脉冲中的能量转换成撞击在端口上的组织上的冲击波，导致组织断裂。 目标具有一个或多个步骤，使得通过激光脉冲的目标物质的蒸发离开直接面向端口的表面，使得激光能量向机械冲击波的持续转换将提供冲击波，所述冲击波在行进到其中 组织位于。

    Surgical instrument with input power transducer
    34.
    发明授权
    Surgical instrument with input power transducer 失效
    手术仪器带输入功率传感器

    公开(公告)号：US5324282A

    公开(公告)日：1994-06-28

    申请号：US844661

    申请日：1992-04-08

    申请人： Jack M. Dodick

    发明人： Jack M. Dodick

    IPC分类号： A61B18/20 ,  A61B17/30 ,  A61B18/26 ,  A61F9/011 ,  A61M1/00 ,  A61N5/06

    CPC分类号： A61F9/008 ,  A61B18/26 ,  A61B2017/306 ,  A61B2018/266 ,  A61F2009/0087 ,  A61F2009/00887

    摘要： A surgical instrument in the form of, for example, a two mm needle has an open distal aspiration port for holding tissue to be fractured. An optical fiber extends along the length of the needle and has it's distal end positioned close to a metal target. Pulses of laser energy are discharged from the distal end of the optical fiber to strike the target. The target acts as a transducer converting the electromagnetic energy to shockwaves that are directed onto tissue in an operating zone adjacent to the aspiration port. The mechanical shockwaves cause the tissue to fracture and the tissue, together with the irrigating fluid is drawn out through an aspirating passageway. A flexible as the needle enhances access to various area where tissue is to be fractured.

    摘要翻译： PCT No.PCT / US90 / 06109 Sec。 371日期：1992年4月8日 102（e）日期1992年4月8日PCT 1990年10月24日PCT PCT。 公开号WO91 / 06271 日期为1991年5月16日。例如，2mm针形式的手术器械具有用于保持要断裂的组织的开放远端抽吸端口。 光纤沿着针的长度延伸并且其远端位于靠近金属靶的位置。 激光能量的脉冲从光纤的远端排出以撞击目标。 目标作为将电磁能量转换成冲击波的换能器，冲击波被定向在与吸气口相邻的操作区域中的组织上。 机械冲击波导致组织断裂，组织与冲洗液一起通过抽吸通道被抽出。 作为针的灵活性增强了进入组织要断裂的各个区域。

    Impact lithotrypsy
    35.
    发明授权
    Impact lithotrypsy 失效
    影响碎石

    公开(公告)号：US5281231A

    公开(公告)日：1994-01-25

    申请号：US822704

    申请日：1992-01-21

    申请人： David I. Rosen ,  Harry Petschek ,  Stephen P. Drexler ,  Krishna M. Bhatta

    发明人： David I. Rosen ,  Harry Petschek ,  Stephen P. Drexler ,  Krishna M. Bhatta

    IPC分类号： A61B17/22 ,  A61B17/92 ,  A61B18/26 ,  A61B19/00

    CPC分类号： A61B18/26 ,  A61B17/22022 ,  A61B2017/22038 ,  A61B2017/22091 ,  A61B2017/922 ,  A61B2017/928 ,  A61B2018/266 ,  A61B90/39

    摘要： Method and apparatus for fracturing hard deposits such as urinary and biliary stones and atherosclerotic plaque in the human body. A flexible guide having a hard mass capping an end is adapted for insertion through a fluid passage in a living body. An energy source creates a rapid vapor expansion adjacent to the cap causing it to undergo a pulse like movement, imparting a high-velocity impulse to an adjacent deposit, thereby fracturing it. The energy source may be a laser with a fiber optic delivery system in the guide terminating adjacent to the cap to cause vaporization of the mass cap to create the vapor expansion. The energy source may be a spark generator with a conductor associated with the guide to deliver a fluid vaporizing spark adjacent to the mass cap. Other forms of rapid energy delivery such as chemical detonations or ballistic impact may also be applicable.

    摘要翻译： 在人体内破碎诸如尿液和胆石结石和动脉粥样硬化斑块等硬性沉积物的方法和装置。 具有硬质封盖端部的柔性引导件适于插入穿过生物体中的流体通道。 能量源产生与盖相邻的快速蒸气膨胀，使得其经受类似运动的脉冲，给相邻沉积物施加高速冲击，从而将其压裂。 能量源可以是激光器，其中导向器中的光纤传送系统接近盖子，导致质量帽的蒸发以产生蒸气膨胀。 能量源可以是火花发生器，其具有与引导件相关联的导体以输送邻近质量帽的流体蒸发火花。 其他形式的快速能量输送，如化学爆炸或弹道冲击也可能适用。

    ENERGY MANIFOLD FOR DIRECTING AND CONCENTRATING ENERGY WITHIN A LITHOPLASTY DEVICE
    36.
    发明公开
    ENERGY MANIFOLD FOR DIRECTING AND CONCENTRATING ENERGY WITHIN A LITHOPLASTY DEVICE 审中-公开

    公开(公告)号：US20240216062A1

    公开(公告)日：2024-07-04

    申请号：US18605288

    申请日：2024-03-14

    申请人： Bolt Medical, Inc.

    发明人： Christopher A. Cook ,  Eric Schultheis

    IPC分类号： A61B18/24 ,  A61B18/00 ,  A61B18/26

    CPC分类号： A61B18/245 ,  A61B2018/0022 ,  A61B2018/266

    摘要： A catheter system for treating a vascular lesion within or adjacent to a vessel wall within a body of a patient includes a catheter fluid, an energy source that generates energy, an energy guide and an energy manifold. The energy guide includes a guide distal end that is selectively positioned near the vascular lesion. The energy guide is configured to receive energy from the energy source and generate a plasma bubble within the catheter fluid. The energy manifold is coupled to the energy guide near the guide distal end. The energy manifold includes (i) a manifold body that defines a body chamber, the body chamber being configured to retain at least some of the catheter fluid, and (ii) a manifold aperture that extends through the manifold body. The energy manifold directs energy from the plasma bubble out of the body chamber through the manifold aperture and toward the vascular lesion.

    MULTIPLE EMITTER ASSEMBLY FOR FIRING SEQUENCES FOR INTRAVASCULAR LITHOTRIPSY DEVICE
    38.
    发明公开
    MULTIPLE EMITTER ASSEMBLY FOR FIRING SEQUENCES FOR INTRAVASCULAR LITHOTRIPSY DEVICE 审中-公开

    公开(公告)号：US20240016545A1

    公开(公告)日：2024-01-18

    申请号：US18346135

    申请日：2023-06-30

    申请人： Bolt Medical, Inc.

    发明人： Eric Schultheis ,  Alvin Salinas

    IPC分类号： A61B18/26

    CPC分类号： A61B18/26 ,  A61B2018/263 ,  A61B2018/266 ,  A61B2018/0022

    摘要： A catheter system (100) includes an energy source (124), a catheter shaft (110), a balloon (104), a plurality of energy guides (122A), a plurality of emitters (135), and a system controller (126). The energy source (124) generates energy. The balloon (104) is coupled to the catheter shaft (110). The balloon (104) includes a balloon wall (130) that defines a balloon interior (146) that retains a catheter fluid (132). The energy guides (122A) selectively receive energy from the energy source (124). The emitters (135) are positioned within the balloon interior (146). Each emitter (135) includes a guide distal end (122D) of one of the energy guides (122A) and a corresponding plasma generator (133) that is spaced apart from the guide distal end (122D). The energy received by each of the energy guides (122A) is emitted from the guide distal end (122D) and impinges on the corresponding plasma generator (133) so that plasma is generated in the catheter fluid (132) within the balloon interior (146). The system controller (126) controls the energy source (124) so that energy from the energy source (124) is alternatively directed to each of the energy guides (122A) in a first pattern of firing and a second pattern of firing that is different than the first pattern of firing.