Trajectory guide method and apparatus for use in magnetic resonance and computerized tomographic scanners

A surgical device for use on a patient comprising:

• a base unit having a tubular body, said base unit further comprising:
• a first end;
• and
• a second end, said tubular body having a seat therein, said seat positioned near said first end, said tubular body having an opening in said second end;
• and
• an attachment mechanism positioned near the second end of the tubular body of the base unit, said attachment mechanism for attaching the base unit to a patient, said seat and said attachment mechanism separated by a distance and including a flange positioned near one of the first open end or the second open end of the base having the tubular body, said flange for attaching the base to a patient, said other of the first open end or the second open end of the tubular body having approximately the same diameter as a burr hole, said other end of the first open end or the second open end of the tubular body for receiving a surgical instrument, wherein the second opening includes a inside threaded portion.

A surgical device for use on a patient comprising:

• a base unit having a tubular body, said base unit further comprising:
• a first end;
• and
• a second end, said tubular body having a seat therein, said seat positioned near said first end, said tubular body having an opening in said second end;
• and
• an attachment mechanism positioned near the second end of the tubular body of the base unit, said attachment mechanism for attaching the base unit to a patient, said seat and said attachment mechanism separated by a distance and including a flange positioned near one of the first open end or the second open end of the base having the tubular body, said flange for attaching the base to a patient, said other of the first open end or the second open end of the tubular body having approximately the same diameter as a burr hole, said other end of the first open end or the second open end of the tubular body for receiving a surgical instrument;
• and
• a band, said band attached to said flange, wherein said band is attached to the patient.

A surgical device for use on a patient comprising:

• a base unit having a tubular body, said base unit further comprising:
• a first end;
• and
• a second end, said tubular body having a seat therein, said seat positioned near said first end, said tubular body having an opening in said second end;
• and
• an attachment mechanism positioned near the second end of the tubular body of the base unit, said attachment mechanism for attaching the base unit to a patient, said seat and said attachment mechanism separated by a distance and including a flange positioned near one of the first open end or the second open end of the base having the tubular body, said flange for attaching the base to a patient, said other of the first open end or the second open end of the tubular body having approximately the same diameter as a burr hole, said other end of the first open end or the second open end of the tubular body for receiving a surgical instrument;
• and
• a first head band;
• and
• a second head band, wherein said first and second head band are attached to the patient.