CPC A61B 90/39 (2016.02) [A61B 6/12 (2013.01); A61B 6/487 (2013.01); A61B 6/502 (2013.01); A61B 2017/00898 (2013.01); A61B 2017/00938 (2013.01); A61B 2090/3908 (2016.02); A61B 2090/3925 (2016.02); A61B 2090/3937 (2016.02); A61B 2090/3954 (2016.02); A61B 2090/3966 (2016.02); A61B 2090/3987 (2016.02); A61B 2090/3995 (2016.02)] | 23 Claims |
1. A multi-mode composite gel marker, comprising:
a gel material forming an expandable gel marker body;
a plurality of silica shells dispersed within the gel material, each of the plurality of silica shells including a respective shell body having a layer which is formed from silica, a hollow void disposed within an inner surface of the shell body, and a hydrophobic polymer coating that seals the hollow void within each silica shell and prevents ingress of fluids into the hollow void; and
a radiopaque marker carried by the gel material that forms the expandable gel marker body.
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