LOCALIZED MAGNETIC FIELD GENERATOR
First Claim
Patent Images
1. An apparatus for generating a magnetic field for tracking of an object, comprising the following:
- a localized magnetic field generator that is configured to generate a magnetic field and to control the magnetic field in an area of interest and configured to control the magnetic field in a separate area, wherein;
the separate area is displaced from the area of interest and includes a magnetic field-disrupting component, andthe object is located in the area of interest.
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Abstract
An apparatus for generating a magnetic field for tracking of an object (12) can include a localized magnetic field generator (76) that is configured to generate a magnetic field (621) and to control the magnetic field (621) in an area of interest (38) and configured to control the magnetic field (621) in a separate area. The separate area can be displaced from the area of interest (38) and can include a magnetic field-disrupting component (86). The object (12) can be located in the area of interest (38).
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Citations
20 Claims
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1. An apparatus for generating a magnetic field for tracking of an object, comprising the following:
a localized magnetic field generator that is configured to generate a magnetic field and to control the magnetic field in an area of interest and configured to control the magnetic field in a separate area, wherein; the separate area is displaced from the area of interest and includes a magnetic field-disrupting component, and the object is located in the area of interest. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A magnetic field generator, comprising the following:
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a magnetic field shield comprising a first side and a second side; and a plurality of magnetic transmitting elements located proximate to the magnetic field shield and on the first side of the magnetic field shield. - View Dependent Claims (12, 13, 14, 15, 16, 17, 19)
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18. A localized magnetic field generator for tracking of an object, comprising the following:
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a magnetic field shield mounted beneath a patient examination table that includes at least one of a conductive material and a magnetically permeable material; a plurality of magnetic transmitting elements connected with a first side of the magnetic field shield that faces the patient examination table;
wherein;the magnetic field shield and the plurality of magnetic transmitting elements are configured to generate a magnetic field in an area of interest and to control the magnetic field in a separate area; the separate area is displaced from the area of interest and includes a magnetic field-disrupting component, and the object is located in the area of interest.
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20. The magnetic field generator of claim 22, wherein the magnetic field generator generates an asymmetric magnetic field directed perpendicular to and away from the side of the magnetic field shield on which the magnetic transmitting elements are located.
Specification