| 摘要 |
<p>Device for the percutaneous obtainment of coordinates of points on the surface of a human or animal organ and within a three-dimensional coordinate system (2), comprising A) an ultrasound device (3) with a longitudinal axis (11) and at least three energy emitting or receiving means (7) to be used as markers (12); B) a position measurement device (4) to determine the position of the energy emitting or receiving means (7) with reference to a three-dimensional reference coordinate system (2) in space; and C) at least one computer (5) connected to the ultrasound device (3) and the position measurement device (4), whereby D) the ultrasound device (3) further comprises focusing means (25) to focus the ultrasound beam.</p> |
