Stimulators

MagVenture’s stimulators are known and respected among neuroscientists who require TMS equipment of superior quality in order to optimize their brain research. With 7 different stimulators to choose from, MagVenture meets every TMS research need.

The circular coils and the racetrack coils are used to stimulate fairly large areas because stimulation is equally divided in the coils.
The butterfly (figure 8) coils are useful for focused stimulation because the windings inside the coils are placed side-by-side with the stimulation focus right under its center.
The D-shaped coil has the stimulation center at the edge of the coil.

Magnetic stimulating coils become warm during use, because energy is deposited in the coil. The smaller the coil, the faster it heats. MagVenture offers two kinds of cooled coils to prevent this overheating: Static and active.
The “static cooled” coils (MCF coils) have a reservoir of fluid inside the coils which cool down the coils, enabling them to perform more stimuli.

“Active cooled coils” (cool coils) are used with a cooling unit, allowing for an even higher number of stimuli. Coils with “no cooling” do not contain fluid and cannot be connected to an external cooling unit. They are suitable for applying single stimuli, and for a limited number of stimuli per session.

MagVenture offers coils specifically developed for placebo studies, including true double-blinded research studies with both an active and a placebo side.
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Users in the USA please note: Caution - investigational device. Limited by Federal law to investigational use. In accordance with US Federal regulations, and IDE and/or IRB approval may be required.

Use this search filter to see which coils are compatible with which stimulators.

This refers to the maximum number of pulses per second (pps.) that the device can deliver, i.e. 30 pps = 30 pulses per second.

Depending on stimulator, you can work with 4 different pulse modes: standard, dual, twin and power. Standard mode: The TMS device operates with one energy storage.
Power mode:  Two energy storages are added together.
Twin mode (double pulses) and dual mode: Two energy storages work side by side. Twin and dual mode are identical, but in dual mode the two pulses are independently adjustable.

You can run 4 different waveforms with MagVenture’s devices (depending on stimulator):
Monophasic deposits a large amount of energy in the coils, which explains the comparatively faster heating of the coil.
Biphasic waveform deposits a rather small amount of energy in the coil (meaning that the coil can provide a large number of stimuli before it heats up).
Halfsine waveform requires a comparatively small amount of energy compared to the other waveforms and is not as powerful as the biphasic waveform.
Biphasic burst waveform provides a powerful stimulation and can be selected with 2-5 pulses in each stimulation with very low Inter Pulse Interval.

Normal direction: The current flows through the coil following the direction of the arrows shown on the coil.
Reverse direction: The current flows through the coil opposite to the direction of the arrows shown on the coil.

With the ramp up function it is possible to gradually increase the intensity over a number of trains.

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