Patent ID: 8398617
Filing Date: 2013-03-19
Classification: A61M,F16K,Y10T

Abstract:
1. A tool for reading and changing a current setting of a magnetically readable and settable valve implanted in a living being, the tool comprising: an approximately cylindrical elongated body having a reading end, an adjusting end, a longitudinal axis therebetween, an axial bore along at least a portion of the body between the reading end and the adjusting end, the adjusting end comprising a sleeve rotatable about the longitudinal axis with respect to the body; a magnetic compass positioned in the bore proximate to the reading end, the compass adapted for reading the current setting of the valve when the reading end is positioned in proximity to the valve; a permanent magnet positioned in the bore, the magnet having a first axial position in the bore proximate to the adjusting end, and a second axial position in the bore, recessed from the adjusting end, the magnet being resiliently biased to the second position, the magnet being effective for adjusting the valve when the adjusting end is positioned in proximity to the valve and the magnet is in the first position, and ineffective for adjusting the valve when the magnet is in the second position; and a magnetic shield positioned in the bore between the reading end and the adjusting end.