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US 6,351,661 B1Granted
Optically coupled frameless stereotactic space probe
AssigneeSherwood Services AG
InventorEric R. Cosman
Life of this patent
Estimating the term…
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AssigneeSherwood Services AG
InventorEric R. Cosman
Estimating the term…
A system for quantitative computer graphic determination of positions on a patient's anatomy and positions on associated equipment located near the patient's anatomy in relation to anatomical data, as from CT or MR scanning. A first camera produces a quantitative electronic readout of its field-of-view which provides a determination of relative spacial coordinates of uniquely identifiable points in its field-of-view. A second camera produces a quantitative electronic readout of its field-of-view which provides a determination of relative spacial coordinates of uniquely identifiable points in its field-of-view. The two cameras are located with respect to the patient's anatomy and the associated equipment so that the fields-of-view of the cameras include both the patient's anatomy and the equipment, but are taken from different directions. A body marker is positioned with respect to the patient's anatomy at a known position relative to said patient anatomy. The body marker has known coordinates in a stereotactic coordinate system that is established relative to the patient's anatomy so that the coordinates of all identifiable points in the fields of view of the two cameras can be determined relative to the stereotactic coordinate system and related to imaging data.
A surgical system, which comprises:
A surgical system, which comprises:
A surgical system, which comprises:
A process for providing a simultaneous graphic display showing the position of a surgical device with respect to a patient's anatomy, which comprises the steps of:
Dependencies are inferred from the claim text.