Rotating and pivoting magnet for magnetic navigation
First Claim
Patent Images
1. A navigation system for navigating a device in an operating region in a subject, the system comprising:
- an imaging system carried on a C-arm adjacent the subject for imaging the operating region in the subject, the C-arm pivoting about an imaging axis to permit imaging of the operating region in different planes; and
a pair of opposed magnet assemblies disposed on opposite sides of the subject adjacent the C-arm, each assembly comprising at least one magnet and a support for changing the position and orientation of the at least one magnet to change the direction of the magnetic field applied to the operating region by the magnet assemblies;
the assemblies rotating the magnets about the operating region while maintaining the generally opposed relationship in opposite sides of the operating region to accommodate the pivoting of the C-arm.
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Abstract
A system for magnetically navigating a medical device in an operating region within the body of a patient. The system includes a magnet having a front field projecting from the front of the magnet sufficient to project a magnetic field into the operating region in the patient. The magnet is mounted for movement between a navigation position in which the magnet is located adjacent to the patient with the front of the magnetic generally facing the operating region, and an imaging position in which the magnet is spaced from the patient and the front generally faces away from the operating region.
48 Citations
10 Claims
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1. A navigation system for navigating a device in an operating region in a subject, the system comprising:
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an imaging system carried on a C-arm adjacent the subject for imaging the operating region in the subject, the C-arm pivoting about an imaging axis to permit imaging of the operating region in different planes; and a pair of opposed magnet assemblies disposed on opposite sides of the subject adjacent the C-arm, each assembly comprising at least one magnet and a support for changing the position and orientation of the at least one magnet to change the direction of the magnetic field applied to the operating region by the magnet assemblies;
the assemblies rotating the magnets about the operating region while maintaining the generally opposed relationship in opposite sides of the operating region to accommodate the pivoting of the C-arm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification