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US 2017/0291038 A1Published application
Excitation coil and coil unit
AssigneeTeijin Pharma Limited
InventorsMasamichi MIDORIKAWA, Takamitsu OKAYAMA
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Abstract
The purpose of the present invention is to provide a miniaturized excitation coil with increased safety as an excitation coil used in magnetic stimulation therapy. The present invention provides an excitation coil having a spiral conductive wire part that generates a magnetic field, characterized by the conductive wire end faces of the spiral conductive wire part being parallel with respect to the central axis of the excitation coil.
Claims4
1:
- An excitation coil comprising:
- a spiral conductive wire portion generating a magnetic field,
- wherein a side of a rectangle or an axis of an ellipse of a conductive wire end face is parallel to a central axis,
- wherein the conductive wire end face is a cross-section formed when the conductive wire of the spiral conductive wire portion is cut perpendicularly to a longitudinal direction, and the central axis is a center of a spiral of the spiral conductive wire portion of the excitation coil.
1 more element
2:
- The excitation coil according to claim 1, wherein the excitation coil is provided in a coil case comprising a coil upper case and a coil lower case,
- wherein the coil lower case has a groove portion, and the spiral conductive wire portion of the excitation coil is fitted in the groove portion.
3:
- The excitation coil according to claim 1, wherein the groove portion is configured to be parallel to the central axis of the excitation coil.
4:
- The excitation coil according to claim 1, wherein a coil bottom face of the excitation coil is formed in a curved surface shape.