A shielded medical device implanted in a biological organism. The device has a magnetic shield, and the magnetic shield contains a layer of nanomagnetic material; such layer has a morphological density of at least 98 percent. The nanomagnetic material in such layer has a saturation magnetization of from...http://www.google.com/patents/US7091412?utm_source=gb-gplus-sharePatent US7091412 - Magnetically shielded assembly
