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    • 7. 发明申请
    • DEVICES AND METHODS FOR THE DILATION OF SINUS OSTIA AND OTHER BODY PASSAGES
    • 用于鼻窦炎和其他人体通道的扩张的装置和方法
    • WO2018089710A1
    • 2018-05-17
    • PCT/US2017/060965
    • 2017-11-09
    • PAI, Suresh, S.BAGAOISAN, Celso
    • PAI, Suresh, S.BAGAOISAN, Celso
    • A61M29/02A61M25/01
    • Apparatus and methods are disclosed to dilate a sinus ostium or other body passage. In one embodiment, the apparatus includes an elongate inner member, one or more dilation members disposed concentrically around the inner member, and an outer sheath. The inner member includes a distal portion that extends beyond distal end of the dilation member(s). The sheath is disposed around the inner member and dilation member(s) and is at least partially expandable to accommodate advancement of the dilation member(s) relative to the inner member, e.g., to translate axial forces into radial dilating forces, and dilate surrounding tissue within which the distal portion is introduced. Optionally, an elastic cover is provided over at least a portion of the inner member distal portion to enhance constraining the sheath, e.g., after withdrawing the dilation member(s).
    • 公开了用于扩张窦口或其他身体通道的装置和方法。 在一个实施例中,该设备包括细长内部构件,围绕内部构件同心设置的一个或多个扩张构件以及外部护套。 内部构件包括延伸超过扩张构件的远端的远侧部分。 护套围绕内部构件和扩张构件设置并且至少部分地可扩张以适应扩张构件相对于内部构件的前进,例如以将轴向力转化为径向扩张力,并且扩张周围 在其内引入远侧部分的组织。 可选地,在内部构件远侧部分的至少一部分上设置弹性覆盖物以增强约束护套,例如在撤回扩张构件之后。