US Patent 8357145 Implanting medical devices

Systems and techniques for implanting medical devices. In one aspect, an apparatus includes a flexible base member that can be flexed manually to conform to a contour of an anatomy, the base member including a radioscopic indicium that has a characteristic such that, under radioscopic imaging, passage of a skin-penetrating electromagnetic radiation is hindered to an extent that is distinguishable from a hindrance of the electromagnetic radiation by another portion of the base member.