9
TROUBLESHOOTING
Problem
Cause
Solution
Future remedy
The cartridge broke
during injection.
1. Piston O-ring has
been damaged.
2. This specific car-
tridge was weak and
did not withstand the
higher injection pres-
sure required for intra-
liga-mental injections.
A rare, but well-known
risk at intraligamental
injections.
1. Change the O-ring
and apply a thin
layer of PTFE grease as
described under “Main-
tenance by User”.
2. Disconnect the
cartridge barrel and
remove the fragments
of glass very care-
fully. Check if liquid has
leaked at the piston rod
opening.
Clean it by using a
cotton stick moistened
with a surface disinfect-
ant. Blow it dry with
clean air.
If leakage is extensive,
send the handpiece in
for cleaning and repair.
Battery level does not
improve at charging
Charger is defective.
Try another
CALAJECT
™
charger
(
o
ther chargers may
not be used)
The built-in Li-Ion bat-
tery is defective or worn
out.
Send in CALAJECT
™
for battery change.
Extend battery lifetime by
charging regularly. Avoid
draining the battery com-
pletely several times.
CONTRA-INDICATIONS AND PHYSIOLOGICAL HAZARDS
Contra-indications:
No specific for CALAJECT
™
beyond the contra-indications described in the product page and
package insert of the applied analgesic solution purchased separately.
Possible physiological hazards:
In the event of the most serious technical failure that can be foreseen, the dental cartridge will
be emptied in 30 seconds at maximum speed. Injection of 1.8 ml local analgesic at this speed
may cause the following physiological complications:
Nerve block analgesia and infiltrations:
No known. Discomfort and after pain may occur.
Intraligamentary and palatal injections:
No known, but injection at this high speed level may
be associated with discomfort and pain, and the patient will react.
Intravascular injection:
By accidental intravascular injection of 1.8 ml local analgesic containing adrenaline as a vaso-
constricting agent, the patient may feel heart palpitations and discomfort. Patients with heart and
cardiovascular diseases may risk more serious complications - therefore, please study the package
insert of the applied local analgesic solution.
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