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US 8,301,226 B2Granted
Method and apparatus for performing a navigated procedure
AssigneeMedtronic, Inc.
InventorsAndrew N. Csavoy, Matthew S. Solar, Jeffrey M. Waynik, Mark S. Freas, Thomas I. Miller, Keith Sootsman
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Abstract
A system can be used to navigate or guide an instrument or device into an anatomy of a patient. The navigation can occur with the use of image data acquired of the patient. The image data can be registered to the patient space for navigation. Also, one or more coils can be used for tracking or localization.
Claims33
A method of tracking an instrument with a navigation system, comprising:
- generating a first navigation field relative to a patient;
- navigating an alignment device with the first navigation field before fixing the alignment device to the patient;
- fixing the alignment device to the patient;
- generating a second navigation field independent of the first navigation field relative to the patient;
- and
- navigating the instrument relative to the patient only with the second navigation field after ceasing generating the first navigation field.
3 more elements
A method of tracking an instrument with a navigation system, comprising:
- generating a first navigation field relative to a patient;
- navigating an alignment device with the first navigation field by sensing the first navigation field before fixing the alignment device to the patient;
- fixing the alignment device directly to the patient;
- ceasing generating the first navigation field;
- generating a second navigation field independent of the first navigation field relative to the patient after fixing the alignment device directly to the patient and after ceasing generating the first navigation field;
- and
- moving the instrument relative to the patient using the alignment device.
4 more elements
A method of tracking an instrument with a navigation system, comprising:
- generating a first navigation field relative to a patient;
- providing an alignment device including a base having a first coil integrated into the base;
- navigating the alignment device with the first navigation field including sensing the first navigation field with the first coil that is integrated into the base before fixing the alignment device to the patient;
- fixing the alignment device to the patient;
- ceasing generation of the first navigation field;
- generating a second navigation field different than the first navigation field relative to the patient including forming the second navigation field with the first coil after ceasing generation of the first navigation field;
- and
- navigating the instrument relative to the patient with the second navigation field by sensing the second navigation field with at least a second coil.
5 more elements
Dependencies are inferred from the claim text.