Mechanical design considerations for table-mounted device used as a sub-assembly in a magnetic tracking system working in conjunction with an X-ray imaging system
AssigneeSt Jude Medical International Holding, SA.R.L.
InventorsAlon Izmirli, Guy Hevel, Adrian Herscovici, Yuval Vaknin, David Jacobs
Life of this patent
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Abstract
A registration fixture is configured for use with a medical imaging system. The registration fixture comprises a rigid internal structure comprising a plurality of fiducial markers arranged in a predefined pattern. The registration fixture further comprises a housing configured to surround the rigid internal structure. The registration fixture is configured to be mounted on a patient table.
Claims22
A registration fixture configured for use with a medical imaging system, the registration fixture comprising:
- a rigid internal structure comprising a plurality of fiducial markers arranged in a predefined pattern, the rigid internal structure comprising four corners;
- a housing configured to surround the rigid internal structure;
- and
- a plurality of silicon springs configured to allow the rigid internal structure to float within the housing, wherein each of the four corners is supported by one of the plurality of silicon springs;
- wherein the registration fixture is configured to be mounted on a patient table.
A registration fixture configured for use with a medical imaging system, the registration fixture comprising:
- a rigid internal structure comprising a plurality of fiducial markers arranged in a predefined pattern;
- and
- a housing configured to surround the rigid internal structure;
- wherein the registration fixture is configured to be mounted on a patient table;
- and
- wherein the rigid internal structure comprises a stack of unidirectional carbon fiber layers and isolation between each pair of unidirectional carbon fiber layers.
An optical-magnetic registration fixture configured for use with a fluoroscopic imaging system during a clinical procedure, the registration optical-magnetic fixture comprising:
- a housing comprising a top housing and a bottom housing, the housing defining a volume between the top housing and the bottom housing, the volume comprising a first area and a second area, wherein the second area is positioned adjacent to at least one side of the first area;
- a rigid internal structure positioned in the first area of the volume;
- a fiducial layer coupled to the rigid internal structure, the fiducial layer comprising a plurality of fiducial markers arranged in a predefined pattern and configured to be visible in a fluoroscopic image;
- and
- one or more magnetic sensors positioned only in the second area of the volume.
Dependencies are inferred from the claim text.