Paul Lubock,Michael L. Jones,Ethan Broadaway,Frank R. Louw
申请号：
US11985997
公开号：
US08326401B2
申请日:
2007.11.19
申请国别(地区):
US
年份:
2012
代理人:
摘要：
An obturator with an elongated shaft, a proximal end, a substantially closed distal end and a MRI detectable distal shaft portion, which does not interfere with magnetic resonance imaging of tissue proximate thereto. Preferably, the distal shaft portion has an effective MRI detectable mass so as to provide a clear, T1-weighted image within an outline of the distal shaft portion upon magnetic resonance imaging.
