DS7A & DS7AH High Voltage Constant Current Stimulators

DS7A & DS7AH High Voltage Constant Current Stimulators

£3,701.00£3,846.00 exc. VAT

Manufacturer's Net List Price

FEATURES

  • MDD CE certified and FDA cleared medical device
  • Pulse durations from 50µs to 2ms (DS7A) and 50µs to 200µs (DS7AH)
  • 100mA (DS7A) or 1A (DS7AH) constant current output from 400V
  • Flexible TTL compatible trigger options or front panel push button
  • Alternating Polarity control – a toggle switch allows the stimulator to operate in +ve, -ve or alternating polarities during stimulation

Description

DESCRIPTION

DS7A & DS7AH HV Current Stimulators are suitable as general purpose electrical nerve or muscle stimulators for human stimulation and are medically CE marked in the UK/EU and 510(k) FDA cleared within the USA.  The DS7A provides up to 100mA constant current high voltage pulses of brief duration for trans-cutaneous stimulation during investigation of the electrical activity of nerve and muscle tissue. The DS7A is also commonly used in psychology, cognitive neuroscience and pain research applications. The output current is continuously variable over the range 0 to 100mA from a maximum compliance voltage of 400V. For more demanding applications, the DS7AH allows currents up to 1A with a reduced maximum pulse duration limit of 200µs. This model is offered to overcome the difficulties of stimulating deep peripheral nerves, or large muscles such as the quadriceps with large area electrodes. For those who require the high currents of the DS7AH along with the flexibility to use pulses of up to 2ms, we now offer the new DS7R and DS8R research stimulators.

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Product Information

DS7A & DS7AH Application Note
Using a pair of DS7 stimulators in parallel

DS7A & DS7AH HV Current Stimulator
Product Information

References
Publications which cite use of the Digitimer DS7A & DS7AH can be found on Google Scholar.

DOWNLOAD BROCHURE

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FAQS

Does Digitimer supply a range of electrodes for use with their stimulators?
I want to produce trains of electrical stimuli and the DS7A does not include a frequency generator, does Digitimer have a simple device which could be used for this purpose?
I am trying to decide whether I need to use the DS7A or DS7AH, do you have any advice?
I am trying to get my DS7A to produce a train of pulses but I cannot figure out what sort of input signal it needs to do this, can you help?
I want to use Axelgaard electrodes with my Digitimer stimulator when stimulating feet in some human research studies, but how should I interface the electrodes with the stimulator?
Are any of your stimulators MRI compatible?
What sort of output plugs do I need in order to connect electrodes to the DS7A stimulator?
I am planning to trigger a DS7A using a computer DA interface. What are the requirements for the trigger pulse?
I have one of your DS7A stimulators, but the pulse duration control knob doesn’t turn to the 0.5-2ms settings, should I return it for repair?
Is it possible to use two DS7A stimulators in parallel to stimulate a subject with a pair of different pulse types through the same set of electrodes?

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    DS7A (100mA) HV Current Stimulator, DS7AH (1A) HV Current Stimulator