公开(公告)号：US20180321338A1

公开(公告)日：2018-11-08

申请号：US15773529

申请日：2016-11-10

申请人： UNIVERSITY OF UTAH RESEARCH FOUNDATION

发明人： John HADLEY ,  Dennis PARKER ,  Ronald CHAMBERLAIN

IPC分类号： G01R33/34 ,  A61B5/055 ,  A61B5/00

CPC分类号： G01R33/34084 ,  A61B5/055 ,  A61B5/6853 ,  A61B5/687 ,  A61B5/6871 ,  A61B5/6873 ,  A61B2090/3954 ,  A61B2562/166 ,  A61M25/10

摘要： A catheter for use in magnetic resonance imaging includes a catheter shaft having a proximal end and a distal end. A flexible lumen is supported on the distal end of the shaft, and the flexible lumen is configured to be expanded and contracted using a fluid introduced via the proximal end of the catheter shaft. A magnetic resonance coil formed on the flexible lumen such that the magnetic resonance coil may expand and contract with the flexible lumen. The magnetic resonance coil is coupled to an external match and tune circuit via magnetic resonance imaging device. The balloon coil includes nested bazooka or sleeve baluns along the length of the cable to minimize common mode currents on the outer surface of the cable to prevent high current hot spots that cause heating of the cable.