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US 6,663,556 B2Granted
Stimulators and stimulating coils for magnetically stimulating neuro-muscular tissue
AssigneeThe Magstim Company Limited
InventorAnthony T Barker
Life of this patent
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Abstract
A stimulating coil for use in apparatus for the magnetic stimulation of neuro-muscular tissue. having a ferromagnetic back disposed adjacent one broad side of the coil. the material of the ferromagnetic back exhibiting high permeability and high resistivity.
Claims2
A magnetic stimulator for neuro-muscular tissue, comprising:
- a stimulating coil having a front and a rear;
- a storage capacitor;
- a circuit for repeatedly discharging said capacitor into said coil;
- and
- a ferromagnetic back disposed adjacent the rear of the coil so as to be at the back of the coil when the coil is disposed adjacent a patient,
- wherein said ferromagnetic back is a homogeneous member comprising sintered iron powder having a relative permeability greater than ten and a high bulk resistivity and said coil is disposed in recesses formed in a front portion of the ferromagnetic back.
3 more elements
Dependencies are inferred from the claim text.