公开(公告)号：US20120109277A1

公开(公告)日：2012-05-03

申请号：US13281410

申请日：2011-10-25

申请人： KEKE LEPULU ,  Hoang Phan

发明人： KEKE LEPULU ,  Hoang Phan

IPC分类号： A61F2/84 ,  A61B17/22 ,  A61M29/00

CPC分类号： A61M29/00 ,  A61B17/1114 ,  A61B17/320016 ,  A61B17/3478 ,  A61B2017/00349 ,  A61B2017/00986 ,  A61B2017/1139 ,  A61B2017/32113 ,  A61B2090/062 ,  A61M25/0082 ,  A61M25/04 ,  A61M2025/0095 ,  A61M2025/0213

摘要： A catheter for penetrating and dilating a passage from a first body lumen to a second body lumen comprises a catheter body, a tapered dilating tip at a distal end of the catheter body, a reciprocatable needle carried in a central passage of the catheter body, a deployable anchor carried near a distal end of the needle, and an advanceable blade carried in a slot at the distal end of the catheter body and advanceable in a track formed axially along the needle. The catheter can be used to penetrate adjacent luminal walls by first advancing the needle, and advancing the dilator over the needle followed by deploying the anchor, applying proximal tension to hold the adjacent tissue layers together, and then advancing the dilator with the exposed blade to fully dilate the passage.

摘要翻译： 用于穿透和扩张从第一体腔到第二体腔的通道的导管包括导管主体，在导管主体的远端处的锥形扩张尖端，在导管主体的中心通道中承载的往复运动的针， 携带在针的远端附近的可展开的锚固件，以及可移动的刀片，其承载在导管主体的远端处的狭槽中，并且可沿着针沿轴向形成的轨道前进。 导管可以通过首先推进针头并将扩张器推进到针上，然后展开锚固件，施加近端张力以将相邻的组织层保持在一起，然后将暴露的刀片的扩张器推进到 充分扩张通道。