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US 2014/0005524 A1Published application
Stereotactic Therapy System
AssigneeKarolinska Institutet Innovations AB
InventorsElfar Ulfarsson, Anders Nordell, Bo Nordell
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AssigneeKarolinska Institutet Innovations AB
InventorsElfar Ulfarsson, Anders Nordell, Bo Nordell
Estimating the term…
A fiducial marker system (210a-c) comprises a first unit and a second unit. The first unit is patient affixable and comprises a partly spherical inner surface having a first center point that is adapted to receive a touch probe measurement head for measuring the spatial position of the center point. The second unit is releasably attachable to an outer surface of the first unit, and has a second center point, wherein the first center point and the second center point are substantially identical when the second unit is attached to the first unit. For stereotactic therapy, a patient is imaged with the first and second unit assembled. Then the second unit is detached. A stereotactic frame (300) is attached to the first units via arms. Thus frameless imaging is provided in a frame based stereotactic surgery system with high precision. Repeated assembly of the frame (300) to the first units, remaining in the patient, provides advantageous fractionized stereotactic radiotherapy.
In a framebased stereotactic therapy system, a stereotactic frame comprising a base unit and a plurality of adjustable arms mounted to said base unit, wherein a mounting unit is provided at an end portion of said arms that is arranged for releasably mounting each of said arms, and thus said stereotactic frame, to an outer surface of patient affixed first fiducial marker units of a fiducial marker system, such that said base unit of said stereotactic frame has a spatial relationship to said first fiducial marker units and thus, when said first fiducial marker units are secured in relation to a boney anatomical structure of a patient, a fixed spatial relationship to said patient, wherein said arms comprise lockable freely pivotable joints arranged to be locked after mounting each of said arms to said first fiducial marker units by said mounting units.
A framebased stereotactic therapy system comprising at least three fiducial marker systems having said first units secured in relation to a boney anatomical structure of a patient,
A method of conducting stereotactic therapy comprising:
Dependencies are inferred from the claim text.