MARK A. MAGUIRE,JOHN O. MCWEENEY,ALEXANDER A. LUBINSKI,CHRISTOPHER L. BAGLEY,EDWARD CARCAMO
申请号：
US15179305
公开号：
US20160361088A1
申请日:
2016.06.10
申请国别(地区):
US
年份:
2016
代理人:
摘要：
Methods, apparatuses, and systems are described for accessing a body lumen for subsequent treatment thereof. Systems include a cannula configured to penetrate a wall of a body lumen and to passively transition to a nonlinear shape within the body lumen as an elongate member is withdrawn from the distal section of the cannula. Other embodiments include a handle, a cannula removably disposed within a lumen of the handle, and a penetration member sized to advance through a lumen of the cannula, the cannula configured to passively transition to a nonlinear shape as the penetration member is withdrawn from a distal section of the cannula, and a cannula hub configured to selectively engage with a proximal end of the handle to selectively lock rotational movement of the cannula with respect to the handle.
