Tissue marker

摘要

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.

主权项

1. Tissue marker for marking a lesion in body tissue, wherein the tissue marker comprises a transponder, whereby the transponder can be activated via electromagnetic radiation, specifically in such a manner that the transponder emits a localization signal to determine the position of the tissue marker in the body tissue as electromagnetic radiation, wherein the transponder is arranged to emit the localization signal in a coherent manner, with a defined and constant phasing, in order to assign a phase value to a position in space, and wherein the tissue marker is biodegradable and has a biodegradable sheath that encloses the transponder, whereby the biodegradation time can be pre-determined by the thickness and/or the composition of the sheath.