can you save granny's bacon and find her a decent ref page for
interrogation of a vagus nerve stimulator for epilepsy?  this should
be somewhat similar to pacemaker interrogation but with different
lingo.

possible search terms:  DC to DC, magnet trigger(ed) current, milliamps, hertz.

thankee kindly,
GB

For information about VNS technology, check out the link below.  Hope it helps : )

http://www.cyberonics.com/

This might help:

"The NeuroCybernetic Prosthesis (NCP; Cyberonics, Webster, Texas), a
vagal nerve stimulator, is composed of a pulse generator; a bipolar
VNS lead; a programming wand with accompanying NCP software for an
IBM-compatible computer; a tunneling tool; and handheld magnets. The
lead is attached to the left vagus nerve (midcervical portion) and
delivers a biphasic current that continuously cycles between on and
off periods. The programmable NCP generator is placed on the patient's
chest (upper left side).

In the United States, the generator is set to 0 mA for the first 2
postoperative weeks, followed by an increase in the output current.
Some centers initiate stimulation the day after implantation.
Typically, the current output is adjusted to tolerance, using a 30-Hz
signal frequency, with a 500-microsecond pulse width for 30 seconds of
'on' time and 5 minutes of 'off' time. These settings were used in
double-blind controlled studies of patients who were assigned randomly
to receive high levels of stimulation. The handheld magnets are used
according to the patient's demand to interrupt or reduce the severity
of an oncoming seizure. The patient or a companion may activate the
generator by placing the supplied magnet on the patient's chest above
the generator implant for several seconds."

http://www.emedicine.com/neuro/topic559.htm

looks like p. 30-40 of that 3.63 MB physician's manual tells me more
than I really wanna know.  thanks, IWB!
http://www.vnstherapy.com/hcp/emanuals.htm

good info on the emed article, Pinkaroo, just not enough nitty-gritty
lingo like I needed this time out.  appreciate your search time, my
sista.

hope I won't be needing the same for this gastric stimulator dealio anytime soon.  
http://www.transneuronix.com/Docs/Template1.asp?P=19