Rogers C. Ritter,Raju R. Viswanathan,Roger N. Hastings
申请号：
US10831533
公开号：
US08162920B2
申请日:
2004.04.23
申请国别(地区):
US
年份:
2012
代理人:
摘要：
A method of turning a medical device with the assistance of an externally applied magnetic field, in a direction with a component in a plane perpendicular to the direction of the externally applied magnetic field. The method includes applying first torque to the distal end of the medical device by creating magnetic moment at the distal end of the medical device, and applying a second torque to the distal end of the medical device. The second torque may be created by creating a second magnetic moment at the distal end of the device spaced from the first, by using an electrostrictive device, by using a stylette inserted into the device, by using a fluid-driven shaped tube, or otherwise.
