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    • 12. 发明申请
    • ONE-WAY VALVE FOR TROCAR
    • 单向阀
    • US20100004599A1
    • 2010-01-07
    • US12309655
    • 2007-06-14
    • Taili ZhouYanfang Li
    • Taili ZhouYanfang Li
    • A61B17/34
    • A61B17/3498A61B17/3421A61B17/3462A61B17/3474A61M39/06A61M2039/0633A61M2039/064A61M2039/0646A61M2039/0666
    • An one-way valve for trocar is provided, which is mounted in the cavity of the end portion of the trocar sheath tube (2), and includes a V-shaped funnel construction (11) acted as the upper portion of the one-way valve (1), a slit (12) provided on the bottom surface of the V-shaped funnel construction (11), and a supporting body (13) acted as the lower portion of the one-way valve (1) and providing the sealing pressure to the slit (12). The supporting body (13) is connected to the outside of the inclined plane of the V-shaped funnel construction (11). Because the supporting body (13) which can provide the sealing pressure to the slit (12) is provided, when the one-way valve (1) is longitudinally compressed, the unique design of the supporting body (13) will provide sealing pressure on the slit (12). This is due to the spring back force formed when the valve is compressed.
    • 提供一种用于套针针的单向阀,其安装在套管针管(2)的端部的空腔中,并且包括用作单向上部的V形漏斗结构(11) 阀(1),设置在V形漏斗结构(11)的底面上的狭缝(12)和作为单向阀(1)的下部的支撑体(13) 密封到狭缝(12)的压力。 支撑体(13)连接到V形漏斗结构(11)的倾斜平面的外侧。 由于能够对狭缝(12)提供密封压力的支撑体(13),所以当单向阀(1)被纵向压缩时,支撑体(13)的独特设计将提供密封压力 狭缝(12)。 这是由于当阀被压缩时形成的弹回力。
    • 18. 发明申请
    • RADIOPAQUE BIODEGRADABLE VASCULAR EMBOLIC MICROSPHERES
    • 放射性生物可降解血管微生物微球
    • US20100021550A1
    • 2010-01-28
    • US12523046
    • 2008-01-14
    • Yanfang LiTaili Zhou
    • Yanfang LiTaili Zhou
    • A61K9/16
    • A61L24/0042A61L24/001A61L2430/36
    • A radiopaque biodegradable vascular embolic microsphere comprises of a biodegradable material and a radiopaque material which can be both delivered to the vascular system, in which, the biodegradable material incorporates the radiopaque material to form granule structure. The embolic microsphere, readily visible under X-ray, can be delivered or drift with blood flow to a peripheral vessel or site, and can be manufactured using a simple process. A radiopaque biodegradable vascular embolic microsphere incorporating therapeutic agent(s) comprises of a biodegradable material, a radiopaque material, and therapeutic agent(s), which can be all delivered to the vascular system, in which, the biodegradable material incorporates the radiopaque material and the therapeutic agent to form granule structure. This embolic microsphere can be delivered to the targeted site under X-ray guidance, and then embolize the site, and release the therapeutic agent directly at the targeted site while degrading in vivo.
    • 不透射线的可生物降解的血管栓塞微球包括可生物降解材料和不透射线的材料,其可以被递送到血管系统,其中生物可降解材料包含不透射线材料以形成颗粒结构。 在X射线下容易看到的栓塞微球可以通过血流传送或漂移到外周血管或部位,并且可以使用简单的方法制造。 包含治疗剂的不透射线的可生物降解的血管栓塞微球包括可生物降解材料,不透射线材料和治疗剂,其可以全部递送到血管系统,其中生物可降解材料包含不透射线材料和 治疗剂形成颗粒结构。 该栓塞微球可以在X射线引导下输送到目标部位,然后栓塞部位,并在靶向部位直接释放治疗剂,同时降解体内。