Geometrical instruments – Indicator of direction of force traversing natural media – Magnetic field responsive
Reexamination Certificate
2005-04-26
2005-04-26
Bennett, G. Bradley (Department: 2859)
Geometrical instruments
Indicator of direction of force traversing natural media
Magnetic field responsive
C033S354000, C128S899000
Reexamination Certificate
active
06883241
ABSTRACT:
The invention is directed toward a magnetic shield included in a compass-based indicator tool. The indicator tool utilizes a compass to indicate a device setting of an implantable medical device. The implantable medical device may include a target that creates an internal magnetic field for the compass to interact with. External magnetic fields, specifically earth's magnetic field, may interfere with the compass and create an incorrect device setting indication. The magnetic shield blocks the external magnetic fields from influencing the accuracy of the device setting measurement.
REFERENCES:
patent: 3875676 (1975-04-01), Hamilton
patent: 3902252 (1975-09-01), Farber
patent: 4109391 (1978-08-01), Wing
patent: 4625573 (1986-12-01), Henry
patent: 5602472 (1997-02-01), Bergstedt et al.
patent: 5643194 (1997-07-01), Negre
patent: 5709225 (1998-01-01), Budgifvars et al.
patent: 6168780 (2001-01-01), Andra
patent: 6670874 (2003-12-01), Galli
patent: 6736222 (2004-05-01), Kuckes et al.
patent: 20020022793 (2002-02-01), Bertrand et al.
patent: 20020058901 (2002-05-01), Marion
patent: 20020108623 (2002-08-01), Rehder et al
patent: 20030032915 (2003-02-01), Saul
patent: 20040019272 (2004-01-01), Witcraft
Moskowitz Ari
Stepkowski Marc
Bennett G. Bradley
Medtronic Inc.
Shumaker & Sieffert PA
LandOfFree
Compass-based indicator with magnetic shielding does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Compass-based indicator with magnetic shielding, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compass-based indicator with magnetic shielding will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3404263