The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 26, 1992
Filed:
May. 10, 1991
John A Cadwell, Kennewick, WA (US);
Cadwell Industries, Inc., Kennewick, WA (US);
Abstract
A magnetic stimulator comprising a skullcap-shaped magnetic stimulator coil (13) connected to a suitable power supply (15) is disclosed. More specifically, the coil (13) is wound from bottom to top such that its shape defines a skullcap, i.e., a somewhat flat truncated cone with sides that curve slightly outwardly. While flexible enough to be coiled, the wire (21) used to create the coil has a relatively large AC carrying capacity for its size. The preferred wire is litz wire, or copper strip wire, i.e., wire that has a large periphery/cross-sectional area ratio. A layer of suitably soft material (23) is located on the inside of the coil (13) to provide a cushion between the coil and a human cranium (17) positioned beneath the coil (13). When triggered, the power supply produces sinusoidally fluctuating electrical power adequate to create a magnetic field suitable for stimulating the deeply located neurons (17) of a human cranium (17) positioned beneath the skullcap-shaped coil (13), i.e., adequate to create a neuron depolarizing electric field deeply within the cranium.