Surgical extractor
    51.
    发明授权
    Surgical extractor 失效
    手术提取器

    公开(公告)号:US06780193B2

    公开(公告)日:2004-08-24

    申请号:US10105985

    申请日:2002-03-25

    IPC分类号: A61B1724

    CPC分类号: A61B17/221 A61B2017/2212

    摘要: A surgical extractor for removing objects from a body including, for example, calculi, such as kidney stones and gall stones. The extractor includes a handle at an proximal end of the extractor with a slider for operation by a physician. At the distal end the extractor includes a plurality of wires with each wire comprising a first portion having an individual strand and a second portion comprising a plurality of filaments. When a retaining sheath is retracted, the wires, formed of a shape memory material such as stainless steel, expand such that each of strands assume a spaced relationship to define a first section of a basket and the plurality of the filaments assume a spaced relationship to define a second section of the basket. The use of a basket formed by wires having a first section comprising an individual strand and a second section comprising the plurality of filaments promotes capture of objects within the body by having widely spaced wires in the first section, retention of such objects in the second section by multiplying the number of contacts with entrapped object, and improved selective release of such objects without any deleterious effect on the reliability or size of the extractor. Additionally, use of the basket enables improved dislodgment and capture of embedded or impacted objects.

    摘要翻译: 用于从身体移除物体的手术提取器,包括例如结石,例如肾结石和胆结石。 提取器包括在提取器的近端处的手柄,具有用于由医师操作的滑块。 在远端,提取器包括多根线,每条线包括具有单股线的第一部分和包括多条细丝的第二部分。 当保持护套缩回时,由诸如不锈钢的形状记忆材料形成的电线膨胀,使得每个线束呈现间隔开的关系,以限定篮子的第一部分,并且多根细丝呈现间隔开的关系 定义篮子的第二部分。 使用由具有包括单个股线的第一部分和包括多根细丝的第二部分的线形成的篮可以通过在第一部分中具有相互间隔的导线来吸收身体内的物体,从而将这些物体保留在第二部分中 通过将接触的数量乘以被捕获的物体,并且改善这些物体的选择性释放,而对提取器的可靠性或尺寸没有任何有害的影响。 此外,使用篮子可以改善嵌入式或受影响物体的移动和捕获。

    Calculus removal
    53.
    发明授权
    Calculus removal 有权
    微积分去除

    公开(公告)号:US06319262B1

    公开(公告)日:2001-11-20

    申请号:US09339771

    申请日:1999-06-24

    IPC分类号: A61B1722

    摘要: Grasping an object, e.g., a calculus in the biliary tract, using a grasper, such as a basket, that can be opened and closed without mechanical advantage and also rotated about the device axis to make it easier to capture the object. The basket can then be closed further with mechanical advantage to crush the object.

    摘要翻译: 使用诸如篮子的抓紧器来抓住物体,例如胆道中的结石,其可以在没有机械优点的情况下被打开和关闭,并且还绕设备轴线旋转以使其更容易捕获物体。 然后可以进一步关闭篮子以机械的优点来挤压物体。

    Basket with one or more moveable legs
    54.
    发明授权
    Basket with one or more moveable legs 失效
    篮子有一个或多个可动腿

    公开(公告)号:US06174318B1

    公开(公告)日:2001-01-16

    申请号:US09065158

    申请日:1998-04-23

    IPC分类号: A61B1722

    CPC分类号: A61B17/221 A61B2017/2212

    摘要: A medical retrieval device includes a basket with three or more legs. The device can be used to retrieve material from a body such as stones. At least one of the legs of the basket is moveable independently from at least one of the other legs. This independent movability allows material to be captured more readily and easily. A distal end of the basket can be non-perforated.

    摘要翻译: 医疗检索装置包括具有三条或更多条腿的筐。 该装置可用于从诸如石头的身体中检索材料。 篮筐的至少一个腿可独立于至少一个其他腿移动。 这种独立的可移动性允许更容易和容易地捕获材料。 篮子的远端可以是非穿孔的。

    Biopsy needle instrument
    57.
    发明授权
    Biopsy needle instrument 失效
    活检针器械

    公开(公告)号:US5368045A

    公开(公告)日:1994-11-29

    申请号:US583080

    申请日:1990-09-14

    IPC分类号: A61B10/02 A61B10/00

    CPC分类号: A61B10/0275 A61B2010/0208

    摘要: One-handed operable biopsy needle instruments, employing combined spring driven stylets, and cannulas, capable of taking multiple specimens while the other hand is free, e.g. to manipulate an ultrasound probe are described. The particular biopsy needle instrument shown in detail has a pair of cannula and stylet compression springs, a pair of members directly engaged on the ends of the springs mounting respectively the cannula and stylet, and releasable holding means for holding the springs compressed until firing. The device that loads the stylet spring and a pivotal latch each can serve as a means for releasably holding the stylet spring. A latch is employed to releasably hold the cannula spring. Actuation of the stylet can cause sequential operation of the cannula through impact of the stylet-mounting member on the cannula latch. Finger-displaceable means provided on a side surface of the housing for selective loading of the springs, and provision of finger-displaceable lock and firing button, all operable by a hand while that hand holds the device, enables single-handed loading and taking of the biopsy specimen(s). The embodiment shown employs a pair of longitudinally arranged, recessed thumb-actuated slide switches on a broad side of a rectangular cross-section housing, and lock and firing button on top, in pre-arranged relationship to the bevel of the stylet tip.

    摘要翻译: 单手可操作的活检针器械,采用组合的弹簧驱动式套管和插管,能够吸取多个标本,另一方面是自由的。 描述了操纵超声探头。 详细示出的特定活检针器具具有一对插管和探针压缩弹簧,一对直接接合在弹簧的端部上的构件,分别安装在套管和探针上,以及可释放的保持装置,用于将弹簧保持压缩直到发射。 装载探针弹簧和枢转闩锁的装置可以用作可释放地夹持探针弹簧的装置。 使用闩锁来可释放地保持插管弹簧。 探针的致动可以通过探针安装构件撞击套管闩锁而导致套管的顺序操作。 手指可移动装置设置在壳体的侧表面上,用于选择性地装载弹簧,并且提供手指可移动的锁定和击发按钮,所有这些手指可以在手握住装置的同时由手操作,使得能够单手装载和 活检标本。 所示的实施例在矩形横截面壳体的宽侧上使用一对纵向排列的凹形的拇指致动滑动开关,并且在顶部具有锁定和击发按钮,与探针尖端的斜面预先关联。

    Injection therapy catheter
    58.
    发明授权
    Injection therapy catheter 失效
    注射治疗导管

    公开(公告)号:US5261889A

    公开(公告)日:1993-11-16

    申请号:US980821

    申请日:1992-11-24

    摘要: A catheter for use with an endoscope includes a projectable and retractable needle for the introduction of injectable drug agents and a visual-path irrigation lumen disposed adjacent to the needle for providing irrigation fluid to a target site within body tissue. The visual-path irrigation lumen enables the user in a one-catheter procedure to displace blood or other obscuring substances such that the visual path is cleared, a target injection site endoscopically identified, the needle advanced into the tissue at the site, and the injectable agent injected into the tissue.

    摘要翻译: 与内窥镜一起使用的导管包括用于引入可注射药剂的可投射和可缩回的针,以及邻近针安置的视觉通道冲洗腔,用于向体内组织内的靶位置提供冲洗流体。 视觉通道灌洗腔使用户能够在单次导管过程中取代血液或其他模糊物质,使得视觉路径被清除,内窥镜鉴别的目标注射部位,针进入部位的组织,注射 药剂注入组织。

    Biopsy needle instrument
    59.
    发明授权
    Biopsy needle instrument 失效
    活检针器械

    公开(公告)号:US4958625A

    公开(公告)日:1990-09-25

    申请号:US381780

    申请日:1989-07-18

    IPC分类号: A61B10/02 A61B10/00

    CPC分类号: A61B10/0275 A61B2010/0208

    摘要: A biopsy needle instrument has selectable locking means to permit or prevent the projection of a cannula and a stylet and separate loading members allowing the cannula and stylet to be loaded separately and yet fired sequentially using a single button. Another embodiment of the invention permits the independent firing of the stylet and the cannula.

    摘要翻译: 活检针器具具有可选择的锁定装置,以允许或防止插管和探针以及单独的装载构件的突出,允许插管和探针被单独加载,然后使用单个按钮依次点火。 本发明的另一个实施例允许探针和套管的独立烧制。