Patent 9042965 was granted and assigned to C. R. Bard on May, 2015 by the United States Patent and Trademark Office.
An intracorporeal marker, for marking a site within living tissue of a host, includes an outer body portion of biodegradable material. An inner body portion is located in the outer body portion. The inner body portion includes biological material that becomes calcified in the living tissue of the host over time. An agent interacts with the biological material to promote calcification of the biological material of the inner body portion in the living tissue of the host.