Surgery – Miscellaneous – Devices placed entirely within body and means used therewith
Reexamination Certificate
2001-07-23
2004-11-16
Schaetzle, Kennedy (Department: 3762)
Surgery
Miscellaneous
Devices placed entirely within body and means used therewith
C600S585000
Reexamination Certificate
active
06817364
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to magnetic navigation of medical devices, and in particular to improved methods and means for the delivery of bi-ventricular pacing leads.
BACKGROUND OF THE INVENTION
Bi-ventricular pacing is an increasingly used treatment of electrical irregularities of the heart, and particularly diseased and enlarged hearts. See, for example, U.S. Pat. Nos. 5,304,218, 5,755,766, 5,800,497, 5,803,928, 5,902,331, and Mertz, Non-Traditional Pacemakers Synchronize Ailing Hearts, the contents of all of which are incorporated herein by reference. However the procedure of placing the pacing leads is difficult and time consuming. The length of the procedure puts patients, who usually already have diseased or damaged hearts, at risk, and makes the procedure relatively expensive.
SUMMARY OF THE INVENTION
The present invention provides a method and apparatus for guiding medical devices into human blood vessels. It is particularly useful for the placement of pacing leads and delivery catheters for facilitating the placement of the leads, and improved methods of placing the leads that make the procedures easier for the physicians to perform, and shorter for the patients. This reduces the stress of the procedure on the patient, and shortens recovery time.
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Garibaldi Jeffrey M.
Hall Andrew F.
Hastings Roger N.
Sell Jonathan C.
Harness & Dickey & Pierce P.L.C.
Schaetzle Kennedy
Stereotaxis, Inc.
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