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    • 9. 发明授权
    • Sheath system for autoperfusion dilatation catheter balloon
    • 护套系统用于自体灌注扩张导管球囊
    • US5749852A
    • 1998-05-12
    • US685119
    • 1996-07-23
    • Sharon SchwabGlen L. LieberDon H. TranMichael P. BroseMaritess E. Minas
    • Sharon SchwabGlen L. LieberDon H. TranMichael P. BroseMaritess E. Minas
    • A61F2/958A61M29/02A61M29/00
    • A61M25/1002A61M2025/105A61M2025/1086A61M2025/1095
    • A sheath arrangement for spiral balloon catheters which permits improved perfusion during dilation of a body vessel. Methods of making the sheath and assembling the sheath onto a balloon and the resulting sheathed balloon catheter are included. A tube sized to fit over a spiral balloon is cut, preferably by laser cutting, to form ribs extending from the tube ends with collars at the distal ends of the ribs. Preferably, the tube ends are trimmed to match the balloon spiral lobes. The sheath is placed over the spiral balloon, bonded to the balloon lobes. The collars are secured to the catheter adjacent to the balloon. When the balloon is expanded to dilate a body vessel, blood can freely pass through the interlobe channels while the sheath prevents entry of arterial intima from entering into the channels. The rib and collar arrangement securely maintains the sheath in place on the balloon.
    • 用于螺旋气囊导管的护套装置,其允许在体血管扩张期间改善灌注。 制备护套并将护套组装到球囊上的方法以及所生成的护套球囊导管被包括在内。 优选通过激光切割来切割尺寸适合于螺旋形气囊的管,以形成从管末端延伸出来的肋,所述凸缘在肋的远端具有凸缘。 优选地,将管端修剪成与气球螺旋形波瓣匹配。 鞘被放置在螺旋形气球上方,粘合到气球瓣上。 套环固定在邻近气囊的导管上。 当气囊膨胀以扩张体血管时,血液可以自由地穿过叶间通道,同时鞘防止动脉内膜进入通道。 肋和衣领布置将护套牢固地保持在气球上的适当位置。