Magnetic navigation system

• US 7,019,610 B2
• Filed: 01/17/2003
• Issued: 03/28/2006
• Est. Priority Date: 01/23/2002
• Status: Expired due to Term

• Current Assignee: Stereotaxis, Inc.
• Original Assignee: Stereotaxis, Inc.
• Inventors: Burgett, Seth, Creighton, Francis M. IV
• Primary Examiner(s): Barrera, Ramon M.
• Application Number:
  US10/347,525
• Publication Number:
  US 20040030324A1
• Time in Patent Office: 1,166 Days
• Field of Search: 335/216, 335296-306, 324318-320, 600/410, 600 9- 14, 600/114, 600/424, 128/899
• US Class Current: 335/306
• CPC Class Codes: A61B 2034/732 arranged around the patient, e.g. in a gantry
• CPC Class Codes: A61B 2034/733 arranged only on one side of the patient, e.g. under a table
• CPC Class Codes: A61B 34/70 Manipulators specially adapted for use in surgery
• CPC Class Codes: A61B 34/73 Manipulators for magnetic surgery
• CPC Class Codes: A61B 6/12 Arrangements for detecting or locating foreign bodies
• CPC Class Codes: H01F 7/0278 for generating uniform fields, focusing, deflecting electrically charged particles for magnetic separation by Lorentz force B03C1/023; specially adapted for NMR applications G01R33/383

Abstract

A system for magnetically navigating a medical device in an operating region within the body of a patient. The system includes a magnet having a front field projecting from the front of the magnet sufficient to project a magnetic field into the operating region in the patient. The magnet is mounted for movement between a navigation position in which the magnet is located adjacent to the patient with the front of the magnetic generally facing the operating region, and an imaging position in which the magnet is spaced from the patient and the front generally faces away from the operating region.

Claims

1. A magnet system for applying a magnetic field of selected direction to an operating region inside a patient on a support, to control a magnetic medical object in the operating region, the magnet system comprising first and second magnet applicators on opposite sides of the patient support, each magnet applicator comprising a base, and a magnet mounted on the base, each base being movable to change the position and/or orientation of the magnet relative to the operating position, to move the magnet from a state in which magnet applies a field to the operating region, and a second position in which the magnet does not apply a field to the operating region.

2. The system according to claim 1 wherein the bases pivot to change the orientation of the magnet relative to the patient.

3. The system according to claim 1 wherein the bases pivot to change the position and orientation of the magnet relative to the patient.