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    • 5. 发明授权
    • Anatomically shaped vasoocclusive devices
    • 解剖形状的血管收缩装置
    • US5911731A
    • 1999-06-15
    • US949066
    • 1997-10-10
    • Pete Phong PhamHong Doan
    • Pete Phong PhamHong Doan
    • A61B17/12A61F2/00A61F2/01A61L31/02A61L31/04A61L31/06B29C53/76B29C53/82B29C61/00B29C61/06
    • B29C61/0608A61B17/12022A61B17/12145A61B17/1215A61L31/022A61L31/048A61L31/06B29C53/76B29C53/821B29C61/00A61F2/01A61F2002/30092A61F2210/0014B29K2029/00B29L2031/753B29L2031/7734
    • This is a vasoocclusive device which, as used, is in the approximate shape of an anatomical cavity. It may be deployed as a sphere, an ovoid, or other distorted spherical shape. The device is a self-forming shape made from a pre-formed vasoocclusion member. Prior to deployment, the vasoocclusive device is sufficiently straight that it is able to be pushed from a vascular catheter without excessive friction. The vasoocclusion member may be a small helical coil or braid variously comprising a suitable metal, or, in the case of a braid, such metal may be co-woven with various polymeric or natural fibers. Fibers may be introduced onto the device and affixed to the member. The constituent member may be also be covered with a fibrous braid. The device is typically introduced through a catheter. The device is passed axially through the catheter sheath and assumes its form upon exiting the catheter without further action. The invention also includes methods of winding the anatomically shaped vasoocclusive device into appropriately shaped forms and annealing them to form various devices.
    • 这是一种血管收缩装置,如所用的那样,它们是解剖腔的近似形状。 它可以部署为球体,卵球形或其他扭曲的球形。 该装置是由预形成的血管闭塞构件制成的自形成形状。 在部署之前,血管收缩装置是足够直的,使得能够在没有过度摩擦的情况下从血管导管推动。 所述血管吸收构件可以是各种各样地包含合适金属的小螺旋线圈或编织物,或者在编织物的情况下,这种金属可以与各种聚合物或天然纤维共编织。 纤维可以被引入到装置上并固定到构件上。 构成部件也可以用纤维编织物覆盖。 该装置通常通过导管引入。 该装置轴向穿过导管护套,并且在离开导管时采取其形式,而无需进一步的动作。 本发明还包括将解剖形状的血管收缩装置卷绕成适当形状的形状并将其退火以形成各种装置的方法。