The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 28, 2006
Filed:
Jan. 14, 2002
Rogers C. Ritter, St. Louis, MO (US);
Torrey Munger, Richmond Heights, MO (US);
John Rauch, St. Louis, MO (US);
Andrew F. Hall, St. Charles, MO (US);
Roger N. Hastings, Maple Grove, MN (US);
Rogers C. Ritter, St. Louis, MO (US);
Torrey Munger, Richmond Heights, MO (US);
John Rauch, St. Louis, MO (US);
Andrew F. Hall, St. Charles, MO (US);
Roger N. Hastings, Maple Grove, MN (US);
Stereotaxis, Inc., St. Louis, MO (US);
Abstract
A method of localizing a medical device inside a patient's body, the method comprising: transmitting ac magnetic signals between a plurality of points of known location outside of the patient's body and a plurality of points on the medical device inside the patient's body, the signals transmitted between at least some of the points comprising at least two different frequencies; and receiving the transmitted ac magnetic signals and processing the received signals to determine the position of the points on the medical device, and thus the location of the medical device, this processing including correcting for the affects of metal in the vicinity by using the transmitted and received signals at different frequencies. In an alternate embodiment, a reference device is provided inside the patients' body, and the medical device is localized relative to the reference catheter. The use of signals comprising at least two frequencies may or may not be used in this relative localization embodiment, but preferably is used at least to localize the reference catheter.