Nexstim Oy

Matti Aho

Henri Hannula

Marko Ollikainen

A transcranial magnetic stimulation induction coil device having a tracking device with a mating portion and at least one set of two or more reflective elements, a casing separate from a tracking device and containing at least one coil winding having a known orientation within the casing, and an attachment portion corresponding to the mating portion for removably attaching the tracking device to the casing such that, when attached, the reflective elements have a known orientation with respect to the known orientation of the coil winding.

Transcranial magnetic stimulation induction coil device with attachment portion for receiving tracking device

A transcranial magnetic stimulation induction coil device ('TMS coil device') is manufactured to contain coil windings of a predetermined size and shape and fixedly positioned at a predetermined location within and orientation in relation to a casing of the TMS coil device. In one embodiment, the coil windings are encased in a casting at a predetermined location within and orientation in relation to the casting, and the casting is fixedly positioned at a predetermined location within and orientation in relation to the casing. The size and shape of the coil windings and the casing within, and the location and orientation of the coil windings in relation to each other and the casing of, the TMS coil device are known with a high level of precision, such that navigated brain stimulation can be performed with the TMS coil device with a high degree of accuracy. In another embodiment, the TMS coil device defines a space interposed between the coil windings and the casing and containing a gas which absorbs heat energy generated at the coil windings, thereby reducing the rate of transfer of heat energy from the coil windings to the casing during operation of the TMS coil device.

Transcranial magnetic stimulation induction coil device and method of manufacture

A transcranial magnetic stimulation ('TMS') induction coil device includes an attachment portion for attachment to a tracking device and providing that the tracking device, when attached to the TMS coil device, is at a predetermined location and orientation in relation to a casing of the TMS coil device. The casing of the TMS coil device also includes a reference point for confirming the accuracy of the attachment of the tracking device to the TMS coil device at the predetermined location and orientation in relation to the casing.

The invention relates to an electrode structure () for attachment to a more extensive measuring structure (), in order to measure electrical responses from the human body. The electrode structure () includes a conductive electrode (). According to the invention, the electrode () is shaped to be thin in the thickness direction of the electrode structure (), and the electrode structure () is equipped with a hole () and the electrode () is located at the edge of the hole (), in such a way that its longitudinal axis is essentially parallel to the plane of the measurement subject.

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Nummela, Finland

Matti Aho