Shielded x-ray source, method of shielding an x-ray source, and magnetic surgical system with shielded x-ray source

摘要

Generally, the shielded x-ray source of the present invention has a cast shield of an iron based material substantially enclosing and closely conforming to the x-ray tube to shield the x-ray tube imaging beam from interference from magnetic fields. The method of the present invention includes providing a shield cast from an iron-based material in a shape having a cavity to receive and closely conform to the x-ray tube, and installing the cast shield around the x-ray tube. The magnetic surgical system comprising at least one magnetic for magnetically navigating a medical device in an operating region in a patient's body, and an imaging apparatus including at least one x-ray tube for imaging the operating region. A cast shield of an iron-based material substantially enclosing and closely conforming to the at least one x-ray tube.