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    • 4. 发明授权
    • Mechanism for the deployment of endovascular implants
    • 部署血管内植入物的机制
    • US06689141B2
    • 2004-02-10
    • US10143724
    • 2002-05-10
    • David A. FerreraGeorge R. Greene, Jr.Brian J. CoxRobert F. Rosenbluth
    • David A. FerreraGeorge R. Greene, Jr.Brian J. CoxRobert F. Rosenbluth
    • A61F1100
    • A61B17/1215A61B17/12022A61B17/1214A61B17/12163A61B17/1219A61B2017/00477A61B2017/00535A61B2017/00539A61B2017/00867A61B2017/1205A61B2017/12054
    • A mechanism for the deployment of a filamentous endovascular device includes a flexible deployment tube having an open proximal end, and a coupling element attached to the proximal end of the endovascular device. The deployment tube includes a distal section terminating in an open distal end, with a lumen defined between the proximal and distal ends. A retention sleeve is fixed around the distal section and includes a distal extension extending a short distance past the distal end of the deployment tube. The endovascular device is attached to the distal end of the deployment tube by fixing the retention sleeve around the coupling element, so that the coupling element is releasably held within the distal extension of the deployment tube. In use, the deployment tube, with the implant attached to its distal end, is passed intravascularly through a microcatheter to a target vascular site until the endovascular device is located within the site. To detach the endovascular device from the deployment tube, a liquid is injected through the lumen of the deployment tube so as to apply pressure to the upstream side of the coupling element, which is thus pushed out of the retention sleeve by the fluid pressure. The coupling element may include an internal or peripheral purge passage that allows air to be purged from the microcatheter prior to the intravascular passage of the endovascular device.
    • 用于部署丝状血管内装置的机构包括具有开口近端的柔性展开管和附接到血管内装置的近端的联接元件。 展开管包括终止于开放远端的远侧部分,其中限定在近端和远端之间的内腔。 保持套固定在远端部分周围,并且包括远离展开管远端延伸的远端延伸部。 血管内装置通过将保持套固定在联接元件周围而附接到展开管的远端,使得联接元件可释放地保持在展开管的远侧延伸部内。 在使用中,将植入物连接到其远端的展开管通过血管内通过微导管至目标血管部位,直到血管内装置位于部位内。 为了将血管内装置从展开管中分离出来,液体通过展开管的内腔被注入,以便向耦合元件的上游侧施加压力,由此通过流体压力将其推出保持套筒。 联接元件可以包括内部或周边清洗通道,其允许空气在血管内装置的血管内通过之前从微导管清除。
    • 6. 发明授权
    • Vascular embolization with an expansible implant
    • 血管栓塞与可扩展植入物
    • US07201762B2
    • 2007-04-10
    • US10320033
    • 2002-12-16
    • George R. Greene, Jr.Robert F. RosenbluthBrian J. Cox
    • George R. Greene, Jr.Robert F. RosenbluthBrian J. Cox
    • A61B19/00A61F2/06
    • A61L31/146A61B17/12022A61B17/12113A61B17/12186A61B17/1219A61B34/10A61B2017/00526A61B2017/1205A61F2/06A61L31/145A61L31/18A61L2430/36B33Y50/00B33Y80/00Y10S623/901Y10S623/903Y10T29/49
    • A vascular implant formed of a compressible foam material has a compressed configuration from which it is expansible into a configuration substantially conforming to the shape and size of a vascular site to be embolized. Preferably, the implant is formed of a hydrophilic, macroporous foam material, having an initial configuration of a scaled-down model of the vascular site, from which it is compressible into the compressed configuration. The implant is made by scanning the vascular site to create a digitized scan data set; using the scan data set to create a three-dimensional digitized virtual model of the vascular site; using the virtual model to create a scaled-down physical mold of the vascular site; and using the mold to create a vascular implant in the form of a scaled-down model of the vascular site. To embolize a vascular site, the implant is compressed and passed through a microcatheter, the distal end of which has been passed into a vascular site. Upon entering the vascular site, the implant expands in situ substantially to fill the vascular site. A retention element is contained within the microcatheter and has a distal end detachably connected to the implant. A flexible, tubular deployment element is used to pass the implant and the retention element through the microcatheter, and then to separate the implant from the retention element when the implant has been passed out of the microcatheter and into the vascular site.
    • 由可压缩泡沫材料形成的血管植入物具有压缩构型,其可膨胀到基本上符合要栓塞的血管部位的形状和尺寸的构造。 优选地,植入物由亲水的大孔泡沫材料形成,具有血管部位的缩小模型的初始构型,从而可压缩成压缩构型。 通过扫描血管部位来创建植入物以产生数字化的扫描数据集; 使用扫描数据集创建血管部位的三维数字化虚拟模型; 使用虚拟模型创建血管部位的缩小物理模具; 并使用模具以血管部位的缩小模型的形式产生血管植入物。 为了栓塞血管部位,植入物被压缩并通过微导管,其远端已经进入血管部位。 在进入血管部位时,植入物基本上扩张以填充血管部位。 保持元件容纳在微导管内并且具有可拆卸地连接到植入物的远端。 使用柔性的管状展开元件将植入物和保持元件通过微导管,然后当植入物从微导管通过并进入血管部位时,将植入物与保留元件分离。
    • 8. 发明授权
    • Vascular embolization with an expansible implant
    • 血管栓塞与可扩展植入物
    • US07483558B2
    • 2009-01-27
    • US11733697
    • 2007-04-10
    • George R. Greene, Jr.Robert F. RosenbluthBrian J. Cox
    • George R. Greene, Jr.Robert F. RosenbluthBrian J. Cox
    • G06T7/60A61F2/06B22C7/02
    • A61L31/146A61B17/12022A61B17/12113A61B17/12186A61B17/1219A61B34/10A61B2017/00526A61B2017/1205A61F2/06A61L31/145A61L31/18A61L2430/36B33Y50/00B33Y80/00Y10S623/901Y10S623/903Y10T29/49
    • A vascular implant formed of a compressible foam material has a compressed configuration from which it is expansible into a configuration substantially conforming to the shape and size of a vascular site to be embolized. Preferably, the implant is formed of a hydrophilic, macroporous foam material, having an initial configuration of a scaled-down model of the vascular site, from which it is compressible into the compressed configuration. The implant is made by scanning the vascular site to create a digitized scan data set; using the scan data set to create a three-dimensional digitized virtual model of the vascular site; using the virtual model to create a scaled-down physical mold of the vascular site; and using the mold to create a vascular implant in the form of a scaled-down model of the vascular site. To embolize a vascular site, the implant is compressed and passed through a microcatheter, the distal end of which has been passed into a vascular site. Upon entering the vascular site, the implant expands in situ substantially to fill the vascular site. A retention element is contained within the microcatheter and has a distal end detachably connected to the implant. A flexible, tubular deployment element is used to pass the implant and the retention element through the microcatheter, and then to separate the implant from the retention element when the implant has been passed out of the microcatheter and into the vascular site.
    • 由可压缩泡沫材料形成的血管植入物具有压缩构型,其可膨胀到基本上符合要栓塞的血管部位的形状和尺寸的构造。 优选地,植入物由亲水的大孔泡沫材料形成,具有血管部位的缩小模型的初始构型,从而可压缩成压缩构型。 通过扫描血管部位来创建植入物以产生数字化的扫描数据集; 使用扫描数据集创建血管部位的三维数字化虚拟模型; 使用虚拟模型创建血管部位的缩小物理模具; 并使用模具以血管部位的缩小模型的形式产生血管植入物。 为了栓塞血管部位,植入物被压缩并通过微导管,其远端已经进入血管部位。 在进入血管部位时,植入物基本上扩张以填充血管部位。 保持元件容纳在微导管内并且具有可拆卸地连接到植入物的远端。 使用柔性的管状展开元件将植入物和保持元件通过微导管,然后当植入物从微导管通过并进入血管部位时,将植入物与保留元件分离。