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    • 1. 发明授权
    • Drug delivery catheter with manifold
    • 药物输送导管与歧管
    • US5554119A
    • 1996-09-10
    • US187614
    • 1994-01-27
    • Kent D. HarrisonGary L. HendricksonThomas J. HolmanDaniel M. LafontaineMatthew J. MillerDavid B. Robinson
    • Kent D. HarrisonGary L. HendricksonThomas J. HolmanDaniel M. LafontaineMatthew J. MillerDavid B. Robinson
    • A61M25/00A61F2/958A61M16/04A61M29/02A61M5/32
    • A61M25/1002A61M16/0481A61M2025/105A61M2025/1052A61M2025/1072A61M2025/1097
    • A drug delivery catheter which may be inserted into a vessel, such as a blood vessel is disclosed. The drug delivery catheter comprises any elongated tubular member which has a proximal end and a distal end. A drug lumen which provides a communication path for fluid is provided in the elongated tubular member for delivering a fluid, such as the drug to be administered. An inflatable balloon assembly is provided at the distal end of the elongated tubular member. The balloon assembly includes apertures which communicate with the drug lumen. The balloon assembly comprises a tubular balloon which is helically wound through the elongated tubular member and a sheath. The sheath is attached to the helically wound tubular balloon such that when the balloon member is uninflated, the first fluid in the vessel flows around the balloon assembly and such that when the balloon member is inflated, sections of the helically wound balloon contact the vessel wall to form a containment pocket between the vessel wall, the contacting sections of the balloon and the sheath. The apertures are provided in the containment pocket. An inflatable lumen is defined through the interior of the helically wound balloon and the sheath to allow perfusion of the first fluid.
    • 公开了一种可插入容器(如血管)中的药物输送导管。 药物递送导管包括具有近端和远端的任何细长管状构件。 提供用于流体的连通路径的药物腔室设置在细长管状构件中,用于输送流体,例如待施用的药物。 在细长管状构件的远端处设置可充气气囊组件。 气囊组件包括与药物腔连通的孔。 球囊组件包括通过细长管状构件和护套螺旋缠绕的管状球囊。 护套附接到螺旋形缠绕的管状气囊,使得当球囊构件未膨胀时,容器中的第一流体围绕球囊组件流动,使得当球囊构件膨胀时,螺旋形卷绕的球囊的部分接触血管壁 以在容器壁,球囊和护套的接触部分之间形成容纳袋。 孔口设置在容纳口袋中。 通过螺旋缠绕气囊和护套的内部限定可充气腔,以允许第一流体的灌注。
    • 3. 发明授权
    • Closure device and method
    • 封闭装置和方法
    • US5964782A
    • 1999-10-12
    • US932990
    • 1997-09-18
    • Daniel M. LafontaineKent D. Harrison
    • Daniel M. LafontaineKent D. Harrison
    • A61B17/04A61B17/00A61B17/10A61B18/04A61B18/14
    • A61B18/148A61B17/0057A61B2017/00637A61B2017/00663A61B2017/00668A61B2017/00672A61B2018/00196A61B2018/0022A61B2018/00273A61B2018/00279
    • An apparatus is provided for closing a perforation in a wall of a patient's blood vessel or other organs, and a method of introducing the apparatus and causing the closure are described. The apparatus includes an elongated support member having a distal end supporting one or more tissue engaging hooks configured to engage fibrous vessel tissue when moved in a first direction and to disengage the tissue when moved in a second direction, and a proximal end for applying rotational torque to the support member to cause the hooks to engage collagen fibrous tissue in the adventitia of the blood vessel or fibrous tissue in other body organs. The hooks engaging the collagen fiber causes the blood vessel tissue surrounding the perforation to be drawn into close proximity such that the perforation can be closed. The apparatus can be removed by applying reverse rotation of the support member, whereby the hooks are disengaged. The apparatus is deployed in an outer sheath with the hooks encased until a selected engaging location has been achieved. When positioned in the aperture to be closed, the hooks are exposed to allow interaction with the adventitia. Puncture closure can be accomplished by various techniques, including stasis, cauterizing, or by clamping. Various embodiments of the apparatus are described.
    • 提供了用于封闭患者血管或其他器官的壁中的穿孔的装置,并且描述了引入该装置并引起闭合件的方法。 该装置包括细长的支撑构件,其具有支撑一个或多个组织接合钩的远端,所述组织接合钩构造成当沿第一方向移动时接合纤维血管组织,并且在沿第二方向移动时使组织脱离,以及用于施加旋转扭矩的近端 到支撑构件以引起钩将胶原纤维组织接合在血管的外膜或其他身体器官中的纤维组织中。 接合胶原纤维的钩使得穿孔周围的血管组织被拉近,使得穿孔可以闭合。 可以通过施加支撑构件的反向旋转来移除该装置,由此钩脱开。 该装置部署在外护套中,钩被包住,直到达到选定的接合位置。 当定位在要关闭的孔中时,钩暴露以允许与外膜相互作用。 穿刺闭合可以通过各种技术来实现,包括瘀斑,烧灼或夹紧。 描述该装置的各种实施例。