Devices for arterio-venous fistula creation
    25.
    发明申请
    Devices for arterio-venous fistula creation 有权
    用于动静脉瘘创建的装置

    公开(公告)号:US20050277965A1

    公开(公告)日:2005-12-15

    申请号:US11152621

    申请日:2005-06-13

    摘要: Devices are disclosed for the formation of arterio-venous fistula creation. Embodiments include a femoral access approach to the creation of an Aorta-caval fistula at the bifurcation of the Aorta and the Inferior Vena Cava; an apparatus for the creation, modification and maintenance of a fistula; and a method of supplying oxygenated blood to the venous circulation of a patient. The devices, systems and methods can be used to treat patients with one or more numerous ailments including chronic obstructive pulmonary disease, congestive heart failure, hypertension, hypotension, respiratory failure, pulmonary arterial hypertension, lung fibrosis and adult respiratory distress syndrome.

    摘要翻译: 公开了用于形成动静脉瘘创建的装置。 实施方案包括在主动脉和下腔静脉分叉处产生主动脉瘘的股骨通路方法; 用于创建,修改和维护瘘管的装置; 以及向患者的静脉循环供给氧合血液的方法。 装置,系统和方法可用于治疗患有一种或多种许多疾病的患者,包括慢性阻塞性肺病,充血性心力衰竭,高血压,低血压,呼吸衰竭,肺动脉高压,肺纤维化和成人呼吸窘迫综合征。

    Device and method for facilitating hemostasis of a biopsy tract
    27.
    发明授权
    Device and method for facilitating hemostasis of a biopsy tract 有权
    促进活检道止血的装置和方法

    公开(公告)号:US06440153B2

    公开(公告)日:2002-08-27

    申请号:US09953395

    申请日:2001-09-14

    IPC分类号: A61B1708

    摘要: A system including an adaptor and a syringe is used for facilitating hemostasis of a biopsy tract or other puncture wound by delivery of an absorbable sponge in a hydrated state into the wound. The adaptor includes a tapered lumen for hydrating and compressing the relatively large absorbable sponge for delivery through a relatively small cannula, such as a biopsy needle. The hydrated absorbable sponge is injected through the biopsy needle into the biopsy tract by fluid. Alternatively, the sponge may be delivered to the biopsy needle by injection of fluid and then delivered to the biopsy tract by a plunger or stylet. The implanted absorbable sponge facilitates hemostasis at the biopsy site or other puncture wound and minimizes the chance of internal bleeding. The absorbable sponge material is absorbed by the body over time.

    摘要翻译: 包括适配器和注射器的系统用于促进通过将水合状态的可吸收海绵递送到伤口中来伤口活检管或其他穿刺的止血。 适配器包括锥形内腔,用于水合和压缩相对较大的可吸收海绵,以通过相对小的插管(例如活检针)递送。 将水合吸收海绵通过活检针注射入活检管内。 或者,可以通过注射流体将海绵递送到活检针,然后通过柱塞或通管针递送到活检管道。 植入的可吸收海绵有助于活检部位或其他穿刺伤口止血,并最大限度地减少内部出血的机会。 可吸收的海绵材料随着时间的过去被身体吸收。

    Apparatus and method for percutaneous sealing of blood vessel punctures

    公开(公告)号:US6071300A

    公开(公告)日:2000-06-06

    申请号:US888851

    申请日:1997-07-07

    摘要: A device for promoting hemostasis in a blood vessel puncture is employed with an introducer that accesses the puncture through an incision. The introducer has an open distal end positionable at the puncture, an external portion with an open proximal end, and an axial channel therebetween. The device includes a hollow catheter, dimensioned to pass through the introducer channel, having a distal end to which is attached an expansible compression element, which may be an inflatable balloon, a collapsible prong assembly, or a resilient foam pad. The compression element is collapsed when the distal end of the catheter is enclosed within the introducer. When the catheter and the introducer are located the desired distance from the puncture, the introducer is displaced axially relative to the catheter to expose the compression element to the subcutaneous tissue, whereupon the compression element is expanded. Pressure is applied to the compression element through the introducer to promote hemostasis by the compression of subcutaneous tissue adjacent the puncture. The device preferably includes a locator member passing into the blood vessel through the puncture. The locator member may be either a guide wire, or a hollow tube with a locating balloon, disposed near the portion of the tube insertable into the vessel. A dissolvable locating tip element, connected to the distal end of the catheter, may be used to maintain the position of the device while hemostasis takes place after the locator member is removed.

    Percutaneous hemostatic suturing device and method
    30.
    发明授权
    Percutaneous hemostatic suturing device and method 失效
    经皮止血缝合装置及方法

    公开(公告)号:US5868762A

    公开(公告)日:1999-02-09

    申请号:US937939

    申请日:1997-09-25

    IPC分类号: A61B17/00 A61B17/04

    摘要: A device for suturing a vascular puncture site includes a shaft having a distal end terminating in a pair of resilient prongs, each of which releasably carries a suture anchor attached to one end of a suture. The shaft is installed within a hollow tube for longitudinal translation therein between first and second positions. The tube has a distal end portion and an opening spaced proximally therefrom. When the shaft is in its first position, the prongs are radially closed in the distal end portion. When the shaft is in its second position, the prongs expand radially to an open position through the opening. The proximal end of the shaft is connected to an actuation member in a fitting that is removably connectable to the proximal end of a sheath. The distal end of the tube is introduced into the puncture site through the sheath, with the shaft in its first position. The sheath is partially withdrawn, leaving the distal end of the tube inside the vessel. The shaft is moved to its second position, whereupon the prongs expand to their open position, thus positioning the suture anchors for penetration of the vascular wall tissue by manipulation of the shaft and/or the tube. The shaft is moved back to its first position to retract the prongs back into the tube, leaving the suture anchors secured to the vascular wall tissue. The tube is withdrawn, leaving the sutures trailing from the anchors so as to be secured together.

    摘要翻译: 用于缝合血管穿刺部位的装置包括具有端部终止于一对弹性插脚的远端的轴,每个弹性插脚可释放地携带连接到缝合线的一端的缝合锚。 轴安装在中空管内,用于在第一和第二位置之间纵向平移。 管具有远端部分和与其近端间隔开的开口。 当轴处于其第一位置时,尖端在远端部分中径向封闭。 当轴处于其第二位置时,叉头径向扩张通过开口的打开位置。 轴的近端连接到可拆卸地连接到护套的近端的配件中的致动构件。 管的远端通过护套引入穿刺部位,轴处于第一位置。 护套被部分拉出,使管的远端留在血管内。 轴移动到其第二位置,于是叉头扩展到其打开位置,从而通过操纵轴和/或管来定位缝合锚固件以穿透血管壁组织。 轴被移回到其第一位置以将叉头缩回到管中,留下缝合锚固件固定到血管壁组织。 将管取出,留下缝合线从锚固件中脱落,以便固定在一起。