| 摘要 |
The invention relates to a system for determining the spatial position an d/or orientation of a medical instrument (1), comprising a transmission unit (3) for transmitting electromagnetic radiation (4), at least one localisati on element (2) that is arranged on the medical instrument (1) and which capt ures the electromagnetic radiation (4) transmitted by the transmission unit (3) and produces a localisation signal (5), and an evaluation unit (9) which determines the position and/or orientation of the medical instrument (1) by evaluating the localisation signal (5). The invention is characterised in t hat said localisation element (2) has a transponder that comprises an antenn a (13) and a circuit (12) that is connected to the antenna (13). Said circui t (12) can be excited by the electromagnetic radiation (4) of the transmissi on unit captured by the antenna (13), such that said transmission unit emits , via the antenna (13), the localisation signal (5) as electromagnetic radia tion. |
