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System Overview

The DuoMAG Quadropulse System (QPS) combines four DuoMAG MP stimulators to provide a fully configurable quadropulse TMS stimulator. This combination allows individual control of the amplitude of all stimulators as well as the capability of setting inter-stimulus interval (ISI) and delivering the defined quadropulse stimulation through a single coil. The quadropulse functionality allows users to deliver precise sub- and supra-threshold conditioning and test pulses which is a vital component when studying Inter- and Intra-Cortical Inhibition and Facilitation. The inter stimulus interval for the four pulses is adjustable either in the supplied control software or external control via TTL inputs, offering the ultimate flexibility in ISI control. DuoMAG QPS allows users to combine the two stimulator pulses into a single pulse providing a pulse amplitude that equates to 140% of a single DuoMAG MP output. The DuoMAG QPS can also be used with four separate coils to carryout interhemispheric (quadrolateral) stimulation.

Coil 70BF - Cool

System Features

  • The DuoMAG QPS combines four DuoMAG MP units to provide fully programmable quadro-pulse stimulation through a single stimulation coil.
  • The DuoMAG QPS can also be used with four separate coils to carryout interhemispheric (quadrolateral) stimulation.
  • By controlling the pulse intervals and power level of each DuoMAG MP, it is possible to provide precise sub- and supra-treshold conditioningand test pulses.
  • This is useful for the investigation of Inter-Cortical and Intra-Cortical Inhibition and Facilitation.
  • The Inter-stimulus interval (ISI) for the four pulses is adjustable either in the supplied control software or external control via TTL inputs.
  • Each DuoMAG MP can be run independently in the QPS control software or as a standalone DuoMAG MP magnetic stimulator.
  • The DuoMAG QPS allows users to combine the two stimulator pulses into a single pulse providing a pulse amplitude that equates to 140% of a single DuoMAG MP output.
Stimulator

Fully Programmable Quadro-pulse Stimulation

  • ISI from 1 ms to 800 ms
  • IQI from 500 ms (2 s at maximum output)
  • Configurable intensity for each A, B, C and D stimuli.
  • Up to 8 Hz continuous repetition rate (2 Hz at maximum output)
Duomag Quadro QPS Duomag Quadro QPS

User-friendly Coil Controls

Deymed coils have built-in controls for stimulation and intensity settings. This allows the user full control without needing to avert attention to external panels or triggers. This also allows the TMS system to be used by a single operator.

User-friendly Coil Controls

Compatible Coils

70BF - Cool

Butterfly Coil 70mm with controls and cooling fans

Typical use:
Focused long-term cortical stimulation, mainly for rTMS. Can be used with the counterweight balanced coil-holder on the MagTower Configuration.

Coil 70BF - Cool

50BF T-shaped

Butterfly Coil DuoMAG 50mm T-shaped

Typical use:
Very focused cortical stimulation, mainly for rTMS. Paired pulse stimulation with twin coil configuration due to smaller size.

Coil 50BF T-shaped

100R

Round Coil 100mm with controls

Typical use:
Stimulation of peripheral nerves or shallow cortical stimulation.

Coil 100R

125R

Round Coil 125mm with controls

Typical use:
Spinal stimulation.

Coil 125R

120BFV

Butterfly V Cone Coil 120mm with controls

Typical use:
Deep cortical stimulation.

Coil 120BFV

70BF

Butterfly Coil 70mm with controls

Typical use:
Focused cortical stimulation, mainly for rTMS.

Coil 70BF

50BF

Butterfly Coil 50mm with controls

Typical use:
Very focused cortical stimulation, mainly for rTMS. Paired pulse stimulation with twin coil configuration due to smaller size.

Coil 50BF

Configurations

MagCart with PC

The MagCart configuration is an easy to move configuration that takes up minimal space. An articulating arm allows the coils to be quickly locked into place after positioning. A touch-screen interface includes protocol design and control.

MagCart with PC

Compact

The DuoMAG QPS can be placed on a desktop or similar in a compact space.

Compact

This product is intended for research purposes only.

This product is not yet available for sale to clinical market in the United States and Canada. If you are interested in a research applications, please contact us.

Accessories

We supply a range of accessories for our systems ..

Download the 2019 Deymed Accessories Catalog in PDF format from the link on the right.

Contact us, if you are interested in any listed accessories.

Technical Specification

Product Specification DuoMAG QPS
Pulse mode Quadro-pulse, Independent, Protocol, Boost
Dimensions Standalone: 49 cm x 55 cm x 39 cm (without PC and cables), Standalone: 49 cm x 87 cm x 79 cm (with PC and cables), On Cart: 61 cm x 160 cm x 80 cm
Weight Standalone: 70 kg (without PC and cables), Standalone: 78 kg (with PC and cables), On Cart: 78 kg + cart
Frequency of stimulation at 100% intensity 2 Hz
Frequency of stimulation at 50% intensity 5.6 Hz
Maximum repetition rate 8 Hz
Inter-Stimulus Interval (ISI) 0 or 1 – 800 ms
Pulse width (Rise / Decay) 100, 141 us / 1, 1.41 ms
Coil Compatibility Deymed coils
Main voltage 5x (100-240Vac 50/60 Hz)
Synchronization TTL in/out and/or USB
Communication USB full control, control on coil