VNS Product information

Question 0

What parameters or 102 lead test performed at?

Answer 0

1.0 mA 
20 Hz
500 µs
30 seconds on
60 seconds off

Question 1

What does IFI stand for?

And what does yellow mean on different generators?

Answer 1

Intensified follow-up indicator

8 to 18% battery on 103 and 104 generators

5 to 11% battery on 105 generators

Question 2

What are the parameters of the system diagnostic test?

Answer 2

1.0 mA
20 Hz
500 µs and
30 seconds on

Question 3

What does N EOS mean? And by generator type?

Answer 3

Near end of service
0 to 8% battery on the 103 and 104 generators
0 to 5% battery on 105 generators

Question 4

What are the 8 setting parameters?

Answer 4

Output current in mA
Signal frequency in Hz
Pulse width in microseconds
Signal on time 
signal off time
MAGNET:
Output current in mA
Signal frequency in Hz
Pulse width in microseconds

Question 5

What are clinical concerns of potential end of service?

Answer 5

Increase and seizure activity
Painful or Erratic stimulation
Report of decreased perception of stimulation or no stim when using magnet

Question 6

What are MRI conditions that are safe?

Answer 6

Implant set to 0.0 mA
Transmit and receive only
Coil type is 1.5 to 3.0 Tesla in a static magnetic field

Question 7

Describe testing impedances on 102 batteries

Answer 7

Make sure patient can tolerate 1.0 mA

System diagnostics test assesses lead impedance and integrity

Normal mode assess his generator to deliver programmed output

Question 8

How can you tell high impedances on pulse generators? 102 or older

Answer 8

DCDC is 4-7 which coincides with high impedance

Question 9

Accessory pack part number and contents

Answer 9

Tiedowns
hex screwdriver and
2 x test resistors - one single pin and one dual pin

Question 10

What color is sterilization indicator went good? And when bad?

Answer 10

Good = gold to bronze

Bad = Red or black

Question 11

What is the part number of the programming wand?

Answer 11

201???? Need to verify this

Question 12

Is the tunneler compatible with all lead types? And what is the part number?

Answer 12

402 and yes it is compatible with all leads

Question 13

Is VNS open looped or close loop system?

Answer 13

VNS is Open looped

Competitor RNS is close looped

Question 14

Describe different lead types with part numbers

Answer 14

302 is outside the US only and is single pin

303 is single pin and is 17 times more durable than 302

304 is the Perennia Flex 3.5 times more durable than 302

300 is compatible with the dual pin systems 102R & 104

Question 15

List models of generators

Answer 15

102 is called Pulse
102R is also called Pulse but dual pin
103   Demipulse
104 Demipulse dual pin
105 - aspire high capacity

Question 16

Benefit of magnet

Answer 16

Gives control to patients and families

On-demand stim

• avoid seizures for patients with auras
• abort or decrease the severity
• improve postictal period

Stop stimulation

Check if generator is still working

Titration helps patient get used to higher stimulation