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    • 4. 发明授权
    • Method for sealing blood vessel puncture sites
    • 密封血管穿刺部位的方法
    • US5437292A
    • 1995-08-01
    • US155457
    • 1993-11-19
    • Nicholas KipshidzeVictor NikolychikJohn E. Baker
    • Nicholas KipshidzeVictor NikolychikJohn E. Baker
    • A61B17/00A61B17/03
    • A61B17/0057A61B17/00491A61B2017/00495
    • A method for percutaneous sealing of punctures in arterial and venous blood vessels is provided. After catheterization of any vessel or organ for diagnostic or interventional procedures or endoscopic or orthopedic procedures involving the intentional puncture and penetration of a vessel wall, or the accidental puncture of a vessel wall, separate solutions containing fibrinogen and thrombin, respectively, are introduced into the tissue surrounding the puncture site. The solutions are allowed to mix forming a semisolid gel at the time of application at the puncture site. The gel further hardens around the site to seal the puncture closed preventing the leakage of blood. Solutions of antibiotics and epinephrine as well as agents that slow clot breakdown may be included in the mixture. An apparatus for accomplishing the method is also disclosed.
    • 提供了一种用于动脉和静脉血管穿刺经皮密封的方法。 导管插入任何用于诊断或介入方法的血管或器官或涉及血管壁故意穿刺和穿透或者血管壁意外穿刺的内窥镜或矫形手术,分别将含有纤维蛋白原和凝血酶的分离溶液引入 围绕穿刺部位的组织。 允许溶液在穿刺部位施用时混合形成半固体凝胶。 凝胶在现场周围进一步硬化以密封穿刺,防止血液渗漏。 抗生素和肾上腺素的溶液以及减缓凝块破坏的药物可以包括在混合物中。 还公开了一种用于实现该方法的装置。
    • 5. 发明授权
    • Three-state, two-output variable RF power divider
    • 三态双输出可变RF功率分配器
    • US4956621A
    • 1990-09-11
    • US129993
    • 1987-12-08
    • Douglas E. HeckamanJohn E. BakerWalter M. Whybrew
    • Douglas E. HeckamanJohn E. BakerWalter M. Whybrew
    • H01P5/04
    • H01P5/04
    • A three-state, two-output R.F. power divider is configured as a microstrip device having an input port and first and second output ports. Between these three ports there is disposed a substantially T-shaped microstrip transmission line structure such that the input port is coupled to a base portion of the T-shaped structure and the first and second output ports are coupled to opposite ends of a top portion of the T-shaped structure. A substantially U-shaped microstrip transmission line structure is intercoupled with the T-shaped structure such that end portions of the U-shaped structure are coupled to the top portion of the T-shaped structure and a bottom portion of the U-shaped structure is coupled to the base portion of the T-shaped structure. A first PIN diode is coupled between a first location of the T-shaped structure and a ground plane brassboard underlying the dielectric layer on which the microstrip metalization is formed. Second and third PIN diodes are coupled between second and third respective locations of the U-shaped structure and the ground plane. Power is selectively coupled from the input port and the two output ports by contollably biasing the shunting action of the the three PIN diodes, such that two diodes operate as shunts, while the other diode remains open.
    • 三态双输出R.F. 功率分配器被配置为具有输入端口和第一和第二输出端口的微带设备。 在这三个端口之间设置有基本上T形的微带传输线结构,使得输入端口耦合到T形结构的基部,并且第一和第二输出端口被耦合到顶部的相对端 T形结构。 基本上U形的微带传输线结构与T形结构相互配合,使得U形结构的端部联接到T形结构的顶部,并且U形结构的底部是 耦合到T形结构的基部。 第一PIN二极管耦合在T形结构的第一位置和其下形成有微带金属化的电介质层下面的接地平面铜管。 第二和第三PIN二极管耦合在U形结构和接地平面的第二和第三相应位置之间。 通过对三个PIN二极管的分流作用进行调节偏置来选择性地耦合输入端口和两个输出端口的功率,使得两个二极管作为分流器工作,而另一个二极管保持断开。