Patent ID: 7726171

Claim:
A device ( 1 ) for calibrating geometrical measurements of surgical tools ( 10 ) and orienting the same in space, the device ( 1 ) comprising: A) a docking station ( 2 ) having two fixed jaws ( 3 ) and a surface ( 21 ); and B) at least three marking indicators ( 9 ) arranged on the docking station ( 2 ) in a fixed manner, said at least three marking indicators ( 9 ) being measurable in reference to spatial position electromagnetically or acoustically through a position detector ( 14 ) in order to determine the position and orientation of the device ( 1 ) in space, C) wherein the two jaws ( 3 ) extend perpendicularly from the surface and are locked to the docking station ( 2 ) in an immovable manner and thus remain stationary with respect to the surface ( 21 ) of the docking station ( 2 ) such that the surface ( 21 ) and lateral walls ( 40 ) of the two jaws ( 3 ) define a passage ( 18 ) for receiving a surgical tool; D) wherein the two jaws ( 3 ) are, at least on surface portions opposite to each other, conformed in a round cylindrical, hyperboloid or double-cone shaped fashion such that a surgical tool ( 10 ) can be laid down between the two jaws ( 3 ) so as to make contact with at least one contact point of each of the two jaws ( 3 ) across a longitudinal axis ( 11 ) of the surgical tool ( 10 ), E) wherein the device ( 1 ) further comprises a rotary table ( 6 ) placed within the surface ( 21 ) of the docking station and having two clamping jaws ( 5 ) mounted above the surface ( 21 ), the rotary table ( 6 ) having an axis of rotation ( 25 ) that extends vertically from the surface ( 21 ) such that the clamping jaws can be rotated with the table to hold the surgical tool; and F) wherein the two lateral walls ( 40 ) or the surface ( 21 ) or the rotary table ( 6 ) have a form comprising at least two additional points of contact for contacting a surgical tool ( 10 ) inserted between the two fixed jaws ( 3 ) across a longitudinal axis ( 11 ) of the surgical tool ( 10 ), so as allow a lateral docking, defined with respect to the marking indicators ( 9 ), of the surgical tool ( 10 ).