Checkpoint 9394 Notice D'utilisation page 3

The Checkpoint Head & Neck Stimulator is an adjunctive tool
for locating nerves and testing nerve and muscle excitability. It
is not intended to replace good surgical techniques in locating
and dissecting tissue. The surgeon is ultimately responsible for
identifying exposed motor nerves and tissue.
INSTRUCTIONS FOR USE:
1. Prepare the Checkpoint Head & Neck for use

Remove the sterile pouch from the package.

Inspect sterile pouch for any damage.

Do NOT use if sterile pouch or product appears damaged.

Remove product from sterile pouch.

Remove protective sleeve from probe.

Remove tape from return electrode cable.

Remove cover from the needle return electrode.
Do NOT turn on until ready to use. Once turned ON, the device
will not turn OFF and will remain operational for
approximately four (4) hours.
2. Place the needle return electrode in subcutaneous tissue:

In the sterile field but away from the area to be stimulated. If
stimulation occurs at the needle site, move the needle.

Do NOT cross midline of the body.

Do NOT place in muscle or near other excitable tissue.
The needle return electrode may cause stimulation. Place the
needle return electrode in an area away from excitable tissue
and away from the stimulation area to avoid confusion.
3. Prepare to deliver stimulation
Probe Nose Cone
↓ ↓

NOTE: The Stimulator must be turned ON BEFORE
the probe makes contact with tissue.

Turn ON the Checkpoint by moving the stimulus amplitude
switch from 0 to 0.5mA.

The visual indicator will turn Flashing RED, indicating that
the Stimulator is ON but the circuit is not complete.

Increasing amplitude increases the strength of stimulation.

Amplitude switch provides three (3) settings 0.5mA @ 50
µsec, 1.0mA @ 100 µsec, 2.0mA @ 150 µsec.

If a nerve is thought to be in close proximity and no
response is obtained at the lowest amplitude settings, the
surgeon may increase the amplitude to 1.0mA then to
2.0mA, if needed.

Pulse duration is preset at each of the amplitude settings.

The stimulator delivers a continuous train of stimulation,
which will result in a sustained response as long as the
stimulus is applied.
4. Deliver stimulation

Place probe in contact with tissue.

The visual indicator will FLASH YELLOW indicating that
stimulation is being delivered.
NOTE: If a questionable response to stimulation is obtained
from exposed motor nerves or muscle tissue under test, move
the probe to a known nerve or muscle and observe the results to
confirm that the Stimulator is operating correctly. Check
connections, check controls, and move around the area. Verify
that any paralytic agents used are no longer in effect.
Rx Only
Stimulus Amplitude
3 of 36
Switch
↓
L0023-MAN-001-G
EN