Anchoring wirless markers within a human body

摘要

Apparatus and methods for anchoring implanted wireless markers in a patient's body to accurately locate a small target within a soft tissue region. One embodiment of the invention comprises a casing, a transponder partially encased in the casing, and an anchor protruding from the casing. The anchor can either be an extension of the casing or a separate component partly embedded in the casing. Different embodiments of the invention may be well suited for percutaneous implantation and/or surgical implantation.