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US 7,396,326 B2Granted
Ferrofluidic cooling and acoustical noise reduction in magnetic stimulators
AssigneeNeuronetics, Inc.
InventorsKenneth Ghiron, Mark Edward Riehl
Life of this patent
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Abstract
A ferrofluid chamber has a housing that is adapted to be coupled to a component that generates a magnetic field of sufficient strength to stimulate anatomical tissue. In addition, a ferrofluid is disposed within the housing for cooling the component.
Claims30
A transcutaneous magnetic stimulation device, comprising:
- a coil for generating a magnetic field of sufficient strength to stimulate anatomical tissue;
- a chamber coupled to and substantially surrounding the coil, wherein the chamber contains a ferrofluid that experiences magnetic convection when exposed to the magnetic field;
- and
- a heat exchanger coupled to the chamber for cooling the ferrofluid, wherein the chamber is configured to facilitate thermal and magnetic convection of the ferrofluid between the coil and the heat exchanger.
1 more element
A magnetic stimulation system for generating a magnetic field having sufficient strength to stimulate anatomical tissue, comprising:
- a component for generating the magnetic field;
- a chamber disposed substantially around the component;
- a ferrofluid contained within the chamber;
- and
- a heat exchanger for cooling the ferrofluid, wherein the chamber is configured to facilitate thermal and magnetic convection of the ferrofluid between the coil and the heat exchanger.
2 more elements
A method of cooling a magnetic device, comprising:
- creating a magnetic field with the magnetic device, wherein the magnetic field is of sufficient strength to stimulate anatomical tissue;
- circulating a ferrofluid by inducing convection with the magnetic field;
- and
- cooling the ferrofluid with a heat exchanger, wherein the convection is between the magnetic device and the heat exchanger.
1 more element
Dependencies are inferred from the claim text.