A method of navigating a medical device having a changeable magnetic moment within an operating region within a patient, the method includes applying a navigating magnetic field to the operating region with an external source magnet, and changing the direction of the magnetic moment in the medical device to change the orientation of the medical device in a selected direction within the operating region. The magnet moment of the medical device can be created by one or more electromagnet coils, in which case the magnetic moment can be changed by changing the current to the coil. Alternatively, the magnetic moment of the medical device can be created by one or more permanent magnets, in which case the magnetic moment can be changed by mechanically or magnetically manipulating the permanent magnet.

Title
Magnetic medical devices with changeable magnetic moments and method of navigating magnetic medical devices with changeable magnetic moments
Application Number
11/389547
Publication Number
20070088197
Application Date
March 24, 2006
Publication Date
April 19, 2007
Inventor
Roger N Hastings
Maple Grove
MN, US
Jeffrey M Garibaldi
St Louis
MO, US
Agent
Bryan K Wheelock
MO, US
Assignee
Sterotaxis
IPC
A61B 01/04
A61B 01/00
A61M 31/00
A61M 37/00
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