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US 7,338,028 B2Granted
Fluid switch controlled trans-cutaneously via magnetic force
AssigneeMED-EL Elektromedizinische Geraete GmbH
InventorsMartin Zimmerling, Claude Jolly
Life of this patent
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Abstract
A fluid switch or valve for an implantable fluid delivery system is provided. The fluid switch or valve includes a fluid chamber having a fluid inlet and a fluid outlet and an internal magnet disposed within the fluid chamber. The internal magnet is moveable such that displacement of the internal magnet restricts the flow of fluid through the fluid chamber.
Claims30
A valve for an implantable fluid delivery system comprising:
- a fluid chamber having a fluid inlet and a fluid outlet;
- and
- an internal magnet disposed within the fluid chamber, the internal magnet having a north pole and a south pole forming a magnetic momentum vector axis wherein one pole of the internal magnet includes one or more grooves for permitting fluid flow through the fluid chamber when the one pole is located over the fluid inlet and the fluid outlet, the internal magnet movable such that the magnetic momentum vector axis is changed, the internal magnet being moveable such that displacement of the internal magnet restricts the flow of fluid through the fluid chamber.
A fluid switch for an implantable fluid delivery system comprising:
- a fluid chamber having a fluid inlet and a fluid outlet;
- and
- an internal magnet disposed within the fluid chamber, the internal magnet having a north pole and a south pole forming a magnetic momentum vector axis wherein one pole of the internal magnet includes one or more grooves for permitting fluid flow through the fluid chamber when the one pole is located over the fluid inlet and the fluid outlet, the internal magnet movable such that the magnetic momentum vector axis is changed, the internal magnet being moveable such that displacement of the internal magnet restricts the flow of fluid through the fluid chamber.
Dependencies are inferred from the claim text.