Implantable marker with wireless signal transmitter
First Claim
Patent Images
1. A wireless marker for localizing a target of a patient, comprising:
- a casing;
a magnetic transponder at least partially encased in the casing, the magnetic transponder configured to produce a wirelessly transmitted magnetic field having a magnetic centroid within the casing in response to a wirelessly transmitted excitation energy; and
an imaging element carried by the casing and/or the magnetic transponder, the imaging element having a radiographic profile in a radiographic image such that the marker has a radiographic centroid at least approximately coincident with the magnetic centroid.
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Accused Products
Abstract
A wireless marker for localizing a target of a patient comprises a casing and a magnetic transponder at least partially received in the casing. The magnetic transponder produces a wirelessly transmitted magnetic field in response to a wirelessly transmitted excitation energy. The magnetic transponder also has a magnetic centroid. The marker also comprises an imaging element carried by the casing and/or the magnetic transponder. The imaging element has a radiographic profile in a radiographic image such that the marker has a radiographic centroid at least approximately coincident with the magnetic centroid.
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Citations
37 Claims
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1. A wireless marker for localizing a target of a patient, comprising:
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a casing; a magnetic transponder at least partially encased in the casing, the magnetic transponder configured to produce a wirelessly transmitted magnetic field having a magnetic centroid within the casing in response to a wirelessly transmitted excitation energy; and an imaging element carried by the casing and/or the magnetic transponder, the imaging element having a radiographic profile in a radiographic image such that the marker has a radiographic centroid at least approximately coincident with the magnetic centroid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A wireless marker for localizing a target of a patient, comprising:
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a casing; a magnetic transponder in the casing, the magnetic transponder has a magnetic centroid within the casing, the magnetic transponder configured to produce a wirelessly transmitted magnetic field in response to a wirelessly transmitted excitation field, and the magnetic transponder having a first density; and an imaging element carried by the casing and/or the magnetic transponder, the imaging element having a second density greater than the first density of the magnetic transponder;
whereinthe imaging element has a radiographic profile in a radiographic image such that the marker has a radiographic centroid at least approximately coincident with the magnetic centroid. - View Dependent Claims (21, 22, 23)
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24. A wireless marker for localizing a target of a patient, comprising:
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a casing; a magnetic transponder at least partially encased in the casing, the magnetic transponder has a magnetic centroid within the casing, the magnetic transponder configured to produce a wirelessly transmitted magnetic field in response to a wirelessly transmitted excitation field; and an imaging element carried by the casing and/or the magnetic transponder, the imaging element being sufficiently absorbent of incident photon fluence of a megavolt photon therapy beam to be visible in a radiographic image generated using such a therapy beam;
whereinthe imaging element has a radiographic profile in a radiographic image such that the marker has a radiographic centroid at least approximately coincident with the magnetic centroid. - View Dependent Claims (25, 26, 27)
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28. A wireless marker for localizing a target of a patient, comprising:
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a casing; a magnetic transponder at least partially encased in the casing, the magnetic transponder has a magnetic centroid within the casing, the magnetic transponder configured to produce a wirelessly transmitted magnetic field in response to a wirelessly transmitted excitation field; and an imaging element carried by the casing and/or the magnetic transponder, the imaging element having a density of at least 19 g/cm3;
whereinthe imaging element has a radiographic profile in a radiographic image such that the marker has a radiographic centroid at least approximately coincident with the magnetic centroid. - View Dependent Claims (29, 30)
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31. A wireless marker for localizing a target of a patient, comprising:
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a casing; a magnetic transponder at least partially encased in the casing, the magnetic transponder configured to produce a wirelessly transmitted magnetic field having a magnetic centroid within the casing in response to a wirelessly transmitted excitation field; and an imaging element incorporated with the casing and/or the magnetic transponder, the imaging element producing a radiographic profile in a radiographic image such that the marker has a radiographic centroid at least approximately coincident with the magnetic centroid. - View Dependent Claims (32, 33, 34, 35, 36, 37)
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Specification