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    • 21. 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。
    • 28. 发明授权
    • Vascular embolization with an expansible implant
    • 血管栓塞与可扩展植入物
    • US06500190B2
    • 2002-12-31
    • US09730071
    • 2000-12-05
    • George R. Greene, Jr.Robert F. RosenbluthBrian J. Cox
    • George R. Greene, Jr.Robert F. RosenbluthBrian J. Cox
    • A61B1900
    • 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 embodied. Preferably, the implant is formed of a hydrophobic, macro porous 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 embolism a vascular site, the implant is compressed and passed through a micro catheter, 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 micro catheter 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 micro catheter, and then to separate the implant from the retention element when the implant has been passed out of the micro catheter 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造,从该构型可膨胀到基本上符合要体现的血管部位的形状和尺寸的构造。 优选地,植入物由疏水的大孔多孔泡沫材料形成,其具有血管部位的缩小模型的初始构型,其可压缩成压缩构型。 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,其微型导管已经进入血管部位。 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留元件通过微导管,然后当植入物从微导管流出并进入血管部位时,将植入物与保留元件分离。
    • 29. 发明授权
    • Methods for embolizing a target vascular site
    • 栓塞目标血管部位的方法
    • US06299619B1
    • 2001-10-09
    • US09542145
    • 2000-04-04
    • George R. Greene, Jr.Robert F. RosenbluthBrian J. Cox
    • George R. Greene, Jr.Robert F. RosenbluthBrian J. Cox
    • A61F1100
    • A61L31/022A61B17/12022A61B17/12113A61B17/12145A61B17/12154A61B17/12163A61B17/1219A61B2017/00004A61B2017/00867A61B2017/1205A61L31/145A61L31/18A61L2430/36
    • An embolization device includes a plurality of highly-expansible embolizing elements disposed at spaced intervals along a filamentous carrier. In a preferred embodiment, the carrier is a suitable length of very thin, highly flexible filament of nickel/titanium alloy. The embolizing elements are separated from each other on the carrier by radiopaque spacers in the form of highly flexible microcoils made of platinum or platinum/tungsten alloy. In a preferred embodiment, the embolizing elements are made of a hydrophilic, macroporous, polymeric, hydrogen foam material. The device is particularly suited for embolizing a vascular site such as an aneurysm. The embolization bodies have an initial configuration in the form of small, substantially cylindrical “micropellets” of small enough outside diameter to fit within a microcatheter. The bodies are hydrophilically expansible into an expanded configuration in which they substantially conform to and fill the vascular site while connected to the carrier. A method for embolizing a vascular site using this device includes the steps of: (a) passing a microcatheter intravascularly so that its distal end is in a vascular site; (b) providing a vascular embolization device comprising a plurality of highly expansible embolizing elements carried on a filamentous carrier and separated from each other on the carrier by microcoil spacers; (c) passing the embolization device through the microcatheter so that it emerges from the distal end of the microcatheter into the vascular site; and (d) expanding the embolizing elements in situ substantially to fill the vascular site while retaining the embolizing elements on the carrier. Preferably, the method also includes the step of deploying a vaso-occlusive device in the vascular site, or an intravascular device in a blood vessel adjacent the vascular site, before embolization device is passed through the microcatheter.
    • 栓塞装置包括沿着丝状载体以间隔设置的多个高度可膨胀的栓塞元件。 在优选实施例中,载体是非常薄,高度柔性的镍/钛合金长丝的合适长度。 栓塞元件在载体上通过由铂或铂/钨合金制成的高柔性微线圈形式的不透射线的间隔物相互分离。 在优选的实施方案中,栓塞元件由亲水的,大孔的,聚合的氢气泡沫材料制成。 该装置特别适用于栓塞血管部位如动脉瘤。 栓塞体具有小的,基本上圆柱形的“微丸”的形式的初始构型,其具有足够小的外径以适合微导管。 身体可亲水扩张成扩张构型,其中它们在连接到载体的同时基本上符合并填充血管部位。 使用该装置栓塞血管部位的方法包括以下步骤:(a)血管内通过微导管,使其远端位于血管部位; (b)提供血管栓塞装置,其包括承载在丝状载体上的多个高度可膨胀的栓塞元件,并通过微线圈隔离物在载体上彼此分离; (c)使栓塞装置通过微导管,使其从微导管的远端出现到血管部位; 并且(d)基本上膨胀栓塞元件,基本上填充血管部位,同时将栓塞元件保持在载体上。 优选地,该方法还包括在栓塞装置通过微导管之前在血管部位中部署血管闭塞装置或邻近血管部位的血管中的血管内装置的步骤。
    • 30. 发明授权
    • Filamentous embolic device with expansible elements
    • 具膨胀性元件的丝状栓塞装置
    • US06238403B1
    • 2001-05-29
    • US09410970
    • 1999-10-04
    • George R. Greene, Jr.Robert F. RosenbluthBrian J. Cox
    • George R. Greene, Jr.Robert F. RosenbluthBrian J. Cox
    • A61F1100
    • A61L31/022A61B17/12022A61B17/12113A61B17/12145A61B17/12154A61B17/12163A61B17/1219A61B2017/00004A61B2017/00867A61B2017/1205A61L31/145A61L31/18A61L2430/36
    • An embolization device includes a plurality of highly-expansible embolizing elements disposed at spaced intervals along a filamentous carrier. In a preferred embodiment, the carrier is a suitable length of very thin, highly flexible filament of nickel/titanium alloy. The embolizing elements are separated from each other on the carrier by radiopaque spacers in the form of highly flexible microcoils made of platinum or platinum/tungsten alloy. In a preferred embodiment, the embolizing elements are made of a hydrophilic, macroporous, polymeric, hydrogel foam material. The device is particularly suited for embolizing a vascular site such as an aneurysm. The embolization bodies have an initial configuration in the form of small, substantially cylindrical “micropellets” of small enough outside diameter to fit within a microcatheter. The bodies are hydrophilically expansible into an expanded configuration in which they substantially conform to and fill the vascular site while connected to the carrier. A method for embolizing a vascular site using this device includes the steps of: (a) passing a microcatheter intravascularly so that its distal end is in a vascular site; (b) providing a vascular embolization device comprising a plurality of highly expansible embolizing elements carried on a filamentous carrier and separated from each other on the carrier by microcoil spacers; (c) passing the embolization device through the microcatheter so that it emerges from the distal end of the microcatheter into the vascular site; and (d) expanding the embolizing elements in situ substantially to fill the vascular site.
    • 栓塞装置包括沿着丝状载体以间隔间隔设置的多个高度可膨胀的栓塞元件。 在优选实施例中,载体是非常薄,高度柔性的镍/钛合金长丝的合适长度。 栓塞元件在载体上通过由铂或铂/钨合金制成的高柔性微线圈形式的不透射线的间隔物相互分离。 在优选的实施方案中,栓塞元件由亲水的大孔聚合的水凝胶泡沫材料制成。 该装置特别适用于栓塞血管部位如动脉瘤。 栓塞体具有小的,基本上圆柱形的“微丸”的形式的初始构型,其具有足够小的外径以适合微导管。 身体可亲水扩张成扩张构型,其中它们在连接到载体的同时基本上符合并填充血管部位。 使用该装置栓塞血管部位的方法包括以下步骤:(a)血管内通过微导管,使其远端位于血管部位; (b)提供血管栓塞装置,其包括承载在丝状载体上的多个高度可膨胀的栓塞元件,并通过微线圈隔离物在载体上彼此分离; (c)使栓塞装置通过微导管,使其从微导管的远端出现到血管部位; 和(d)基本上膨胀栓塞元件以充满血管部位。