Variable magnetic moment MR navigation
First Claim
Patent Images
1. A method of navigating a medical device in an operating region in a subject, the method comprising:
- applying a magnetic field to the operating region;
changing the magnetic moment of the medical device by selectively changing a physical condition of at least one magnet element in the medical device to change the orientation of the device with respect to the applied magnetic field.
5 Assignments
0 Petitions
Accused Products
Abstract
A method of navigating a medical device in an operating region in a subject. The method includes applying a magnetic field to the operating region and changing the magnetic moment of the medical device by selectively changing a physical condition of at least one magnet element in the medical device to change the orientation of the device with respect to the applied magnetic field.
-
Citations
30 Claims
-
1. A method of navigating a medical device in an operating region in a subject, the method comprising:
- applying a magnetic field to the operating region;
changing the magnetic moment of the medical device by selectively changing a physical condition of at least one magnet element in the medical device to change the orientation of the device with respect to the applied magnetic field. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- applying a magnetic field to the operating region;
- 13. A method of navigating a medical device in an operating region in a subject to which an externally generated magnetic field is applied, the method comprising changing the magnetic moment of the medical device by changing a physical condition of at least one magnet element.
-
19. A method of navigating a medical device in an operating region in a subject using an externally applied magnetic field, the method comprising:
- changing the magnetic moment at a point on the medical device by changing the temperature of at least one magnetic element.
- View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
-
28. A method of navigating a medical device in an operating region in a subject using an externally applied magnetic field, the method comprising:
- changing the magnetic moment at a point on the medical device by changing the temperature of at least of a plurality of elongate magnetic elements.
-
29. A method of navigating a medical device in an operating region in a subject using an externally applied magnetic field, the method comprising:
- changing the magnetic moment at a point on the medical device by raising the temperature of at least one of a plurality of elongate magnetic elements above the Curie point temperature of the material.
-
30. A method of navigating a medical device in an operating region in a subject using an externally applied magnetic field, the method comprising:
- changing the magnetic moment at a point on the medical device by lowering the temperature of at least one of a plurality of elongate magnetic elements below the Curie point temperature of the material.
Specification