Device and method for finding the center and reading the setting of an implantable medical device
AssigneeMedtronic Xomed, Inc.
InventorsDeep Shah, Tony Daniel Cepeda, Lori Speckman, W. Jeff Bertrand, Lawrence Hampton
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Abstract
A centering tool and a combined centering-indicator tool for finding the magnetic center and indicating the setting of an implantable adjustable valve. The centering and combined centering-indicator tools include a magnetic capsule movable within a cavity to a target located on the tool when the magnetic capsule is centered over magnet of an adjustable valve.
Claims19
A centering tool for finding a center of an adjustable valve, the tool comprising:
- a housing including a cavity;
- a magnetic capsule comprising a tool magnet having at least two magnets, the magnetic capsule disposed within the cavity;
- and
- a target;
- wherein the magnetic capsule is configured to slide within the cavity and center within the target when the tool magnet is magnetically aligned with a magnet of an adjustable valve.
A system for finding the magnetic center and indicating the setting of an implanted adjustable valve, the system comprising:
- a locator tool comprising a tube;
- a combined centering-indicator tool comprising:
- a housing including a cavity and an index comprising valve setting values:
- a magnetic capsule comprising a tool magnet having at least two magnets and a pointer, the magnetic capsule disposed within the cavity;
- and
- a target disposed in the cavity;
- wherein the magnetic capsule is configured to move within the cavity to center itself within the target when the tool magnet is magnetically aligned with the magnetic center of the adjustable valve magnet;
- wherein the magnetic capsule is configured to rotate with respect to a magnetic capsule axis such that the pointer rotates to point to a valve setting value on the index;
- wherein the combined centering-indicator tool is configured to be positioned with the tube of the locator tool when the locator tool is in proximity to the implanted adjustable valve.
Dependencies are inferred from the claim text.