公开(公告)号：WO2013090827A1

公开(公告)日：2013-06-20

申请号：PCT/US2012/069923

申请日：2012-12-14

Applicant: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JR. UNIVERSITY

Inventor： GAL, David ,  BONNEAU, Raymond ,  GARRETT, Mary, K. ,  AZAGURY, Dan, E.

IPC: A61B17/22 ,  A61M1/00 ,  A61M25/10 ,  A61B17/221 ,  A61B17/34

CPC classification number: A61B17/22 ,  A61B2017/22067 ,  A61B2017/22079 ,  A61B2017/22082 ,  A61B2017/22092 ,  A61B2017/2215 ,  A61B2217/007

Abstract: Systems and methods are provided for removing an obstruction from a ureter using a catheter including a distal end sized for introduction into a ureter, an infusion lumen, and an aspiration lumen. An infusion tip is provided on the distal end that includes infusion ports communicating with the infusion lumen, and one or more aspiration ports communicating with the aspiration lumen. One or more sources of fluid and/or vacuum are connectable to the tubular member such that fluid is delivered into the infusion lumen and suction is delivered into the aspiration lumen. A controller is coupled to the source(s) to control delivery of fluid to generate a radially outward pressure against a wall of a ureter adjacent the infusion tip and to control suction through the aspiration port(s) to apply a suction force against a kidney stone located adjacent the infusion tip.

Abstract translation: 提供了系统和方法，用于使用导管来从输尿管移除梗阻，所述导管包括尺寸适于引入输尿管，输液腔和抽吸腔的远端。 在远端设置有输注端，其包括与输液腔连通的输注端口以及与抽吸腔连通的一个或多个抽吸端口。 一个或多个流体和/或真空源可连接到管状构件，使得流体被输送到输注腔中，并且抽吸被输送到抽吸腔中。 控制器联接到源，以控制流体的输送以产生靠近输注尖端的输尿管的壁的径向向外的压力，并且通过抽吸端口控制吸力以向肾脏施加吸力 石头位于输液尖附近。