Pulsed gradient field method to counteract a static magnetic field for magnetic particle focusing
AssigneeWeinberg Medical Physics LLC
InventorsAleksandar Nelson NACEV, Irving N. WEINBERG
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Abstract
Disclosed embodiments provide an apparatus and method that produce a magnetic field gradient configured to counteract effects of a static magnetic field such that the combination of the two fields may be applied to one or more magnetic particles to manipulate the magnetic particle(s).
Claims23
An apparatus comprising:
- at least one magnetizable particle introduced into a body part;
- a plurality of magnets positioned in proximate relationship to the body part;
- and
- a control unit,
- wherein the control unit controls the plurality of magnets to expose the at least one magnetizable particle to at least one static magnetic field and at least one time-varying magnetic field to polarize and then move the at least one magnetizable particle.
A method comprising controlling a plurality of magnets positioned in proximate relationship to a body part using a control unit to expose at least one magnetizable particle to at least one static magnetic field and at least one time-varying magnetic field to polarize and then move the at least one magnetizable particle within the body part.
Dependencies are inferred from the claim text.