Abstract: The invention relates to a tissue marker (1, 1?) for marking a lesion (16) in the body tissue (6). The invention is characterized in that the tissue marker (1, 1?) comprises a transponder (2). The transponder (2) can be activated by electromagnetic radiation (8) in such a manner that the transponder (2) emits a localization signal (9) in the form of electromagnetic radiation by means of which the position of the tissue marker (1, 1?) in the body tissue (6) can be detected. The invention further relates to a system for determining the position of such a tissue marker (1, 1?) and to the use of an RFID tag as a tissue marker (1, 1?) for marking a lesion (16) in the body tissue. According to an advantageous embodiment of the invention, the tissue marker (1, 1?) is biodegradable.

Abstract: The invention relates to a method for detecting motion (“Motion Capture”), wherein markers (2) are put onto an object (1), the physical positions of the markers are detected and digitized, with the motion of the object (1) being recorded by means of a computer (3) using the chronologically variable digital position data. It is an object of the invention to improve a method of this kind. To this end, the invention proposes that the markers (2) comprise a respective transponder which is activated by electromagnetic radiation (5), specifically such that the transponder emits a location signal as electromagnetic radiation (6), the signal being used to detect the position of the respective marker (2).

Abstract: The invention relates to a tissue marker (1, 1?) for marking a lesion (16) in the body tissue (6). The invention is characterized in that the tissue marker (1, 1?) comprises a transponder (2). The transponder (2) can be activated by electromagnetic radiation (8) in such a manner that the transponder (2) emits a localization signal (9) in the form of electromagnetic radiation by means of which the position of the tissue marker (1, 1?) in the body tissue (6) can be detected. The invention further relates to a system for determining the position of such a tissue marker (1, 1?) and to the use of an RFID tag as a tissue marker (1, 1?) for marking a lesion (16) in the body tissue. According to an advantageous embodiment of the invention, the tissue marker (1, 1?) is biodegradable.

Abstract: The invention relates to a system for determining the spatial position and/or orientation of a medical instrument (1), comprising a transmission unit (3) for transmitting electromagnetic radiation (4), at least one localisation element (2) that is arranged on the medical instrument (1) and which captures 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 that the localisation element (2) has a transponder that comprises an antenna (13) and a circuit (12) that is connected to the antenna (13). The circuit (12) can be excited by the electromagnetic radiation (4) of the transmission unit (3) captured by the antenna (13), such that the transmission unit emits, via the antenna (13), the localisation signal (5) as electromagnetic radiation.

Abstract: A method of trimming a balloon of a balloon catheter is provided that includes creating protrusions on the balloon by wrapping a member around the balloon, leaving the member wrapped around the balloon and removing the member from the balloon. The member is wrapped around the balloon such that spaced-apart loops of the member wrapped around the balloon compress the balloon leaving uncompressed portions of the balloon between the spaced apart loops of the member wrapped around the balloon to form the protrusions on the balloon. The member wrapped around the balloon is left for a predetermined period of time. The member is removed from the balloon after the predetermined period of time. A balloon catheter is also provided that is constructed in accordance with this method.