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热词
    • 70. 发明授权
    • Protective intraluminal sheath
    • 保护性腔内鞘
    • US5647857A
    • 1997-07-15
    • US405511
    • 1995-03-16
    • Scott C. AndersonJames M. Cannon, Jr.
    • Scott C. AndersonJames M. Cannon, Jr.
    • A61F2/82A61F2/06A61F2/84A61M25/08A61M5/00A61M25/00
    • A61F2/97A61F2/958A61F2002/9583A61M2025/1081
    • A sheath holds a device against a balloon catheter for delivery in the lumen of a patient. The device can be a stent and graft combination. The stent is kept properly centered over the balloon catheter by the sheath as the graft is placed in a blood vessel. The smooth outer surface of the sheath protects the vessel wall from the rough surface of the stent. A notch is formed in the end of the sheath where the free end of a strand of thread protrudes from the sheath. The sheath is removed from the graft by pulling on the free end of the strand otherwise located distally from the outer surface of the sheath. The strand cuts through and splits open the sheath as a result of the force applied on the free end of the strand. The other end of the strand is attached to a reinforced collar at the other end of the sheath. The strand does not cut through the collar. After reaching the collar, the proximal force applied on the strand now pulls the split sheath from the graft and stent combination without disturbing the placement of the stent over the balloon delivery catheter.
    • 护套将装置保持抵靠气囊导管以在患者的内腔中输送。 该装置可以是支架和移植物组合。 当移植物放置在血管中时,支架通过鞘保持适当地居中在气囊导管上。 护套的光滑外表面保护血管壁免受支架的粗糙表面的影响。 在鞘的端部形成有切口,其中线股的自由端从护套突出。 通过拉动股线的自由端从外壳去除远离鞘的外表面,从鞘中除去鞘。 由于施加在股的自由端上的力,股线切开并分开开放鞘。 股线的另一端在护套的另一端连接到加强套环上。 线条不穿过衣领。 在到达套环之后,施加在股线上的近端力现在从分离器和支架组合拉出分离的护套,而不会干扰支架在球囊输送导管上的位置。