Combination of electromagnetic and electropotential localization
First Claim
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1. A system for tracking an instrument within a volume, comprising:
- a tracking device including;
an annular ring operable as an electrode with an electropotential portion of a tracking system; and
a coil of conductive material positioned with the instrument and the annular ring, wherein the coil of conductive material is operable with an electromagnetic portion of the tracking system; and
a communication system interconnecting both of the annular ring and the coil of conductive material with the tracking system;
wherein the annular ring and the coil of conductive material are moveable relative to one another and positionable at least at one known location relative to one another.
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Abstract
A navigation system or combination of navigation systems can be used to provide two or more types of navigation or modalities of navigation to navigate a single instrument. The single instrument can be positioned within the patient and tracked. For example, both an Electromagnetic (EM) and Electropotential (EP) navigation system can be used to navigate an instrument within a patient.
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Citations
22 Claims
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1. A system for tracking an instrument within a volume, comprising:
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a tracking device including; an annular ring operable as an electrode with an electropotential portion of a tracking system; and a coil of conductive material positioned with the instrument and the annular ring, wherein the coil of conductive material is operable with an electromagnetic portion of the tracking system; and a communication system interconnecting both of the annular ring and the coil of conductive material with the tracking system; wherein the annular ring and the coil of conductive material are moveable relative to one another and positionable at least at one known location relative to one another. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system for tracking an instrument within a volume, comprising:
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a first tracking device including an electrode configured to operate with a first tracking system that is an electropotential tracking system; a second tracking device including a coil of conductive material configured to operate with a second tracking system that is an electromagnetic tracking system, the second tracking system being different from the first tracking system; and an instrument having a first portion and a second portion, the first tracking device connected to the first portion and the second tracking device connected to the second portion, wherein the first tracking device communicates with the first tracking system and the second tracking device communicates with the second tracking system and the second portion is configured to pass through the first portion. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A system for tracking an instrument within a volume, comprising:
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a tracking device including; a tip electrode, an annular ring electrode, and a coil of conductive material wrapped relative to a surface of the annular ring, the tip electrode and the annular ring electrode configured to operate with a first electropotential tracking system and the coil of conductive material configured to operate with a second electromagnetic tracking system; and a communication system interconnecting the tip electrode, the annular ring, and the coil of conductive material with the first tracking system and the second tracking system; an instrument having a first portion connected to the tip electrode, and a second portion connected to the annular ring electrode and the coil of conductive material, wherein the first portion is configured to move through the second portion to place the annular ring electrode at a known position relative to the tip electrode. - View Dependent Claims (20, 21, 22)
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Specification