Instructions For Use - Heraeus Kulzer SOPIRA Citoject Mode D'emploi

Citoject ®
– the injection system for intraligamental anaesthesia

Instructions for use

1. Construction of the SOPIRA Citoject syringe
The SOPIRA Citoject syringe is composed of
• barrel with viewing chamber for anaesthetic cartridge, plastic sleeve
and threaded nozzle for injection needle
• hand piece with dosing lever, resetting key and dosing plunger.
Both parts are connected by a bayonet catch.
1 barrel
2 viewing chamber for cartridge
3 plastic sleeve
4 bayonet catch
5 threaded nozzle for injection needle
2. Preparation
Turning the bayonet catch (4) dismantle the SOPIRA Citoject syringe.
To return plunger (9) to starting point, depress the resetting key (8) and
hold syringe in an upright position (bayonet catch up).
Place anaesthetic-cartridge in the barrel and reassemble the two parts
of the SOPIRA Citoject at the bayonet catch.
Depress the dosing lever (7) until slight resistance is felt.
The dosing plunger is then in contact with the anaesthetic cartridge
bung and fi xes the cartridge in the barrel.
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Instructions for use
6 hand piece
7 dosing lever
8 resetting key
9 dosing plunger
10 disposable needle
Insert a disposable needle into the nozzle (5) and screw the hub onto
the thread. We recommend the use of SOPIRA Carpule disposable
needles in the sizes of 0.3 x 12 mm or 0.3 x 16 mm with the corre-
spondig short needle point.
Depress the dosing lever until anaesthetic solution emerges from the
needle point. The syringe is ready for use.
3. Handling the SOPIRA Citoject syringe
Each despression of the dosing lever applies 0,06 ml of anaesthetic.
Normally 0,15 ml–0,20 ml of anaesthetic is required for each root, i. e. 3
depressions of the lever.
Multi-rooted teeth need an appropriate dose of anaesthetic.
4. Performing an intraligamental anaesthesia with SOPIRA Citoject
Intraligamental anaesthesia provides effective and immediate anaesthe-
sia of a single tooth.
Recommended procedure is as follows:
• In contact with the tooth, the tip of the needle is
inserted 1–2 mm into the periodontal space
approximally along the tooth axis.
• the needle is correctly placed in the periodontal
space if a steady, uninterrupted back-pressure
is noticeable
• This resistance must be maintained, to secure
penetration of the solution to the apex.
• Inject slowly and uniformly.
One depression of the dosing lever should take about 7 seconds, i. e.
for 0.18 ml per root = 3 depressions of the dosing lever = 21 seconds.
The onset of anaesthesia is generally obtained within 30 seconds
following the injection. Hence the treatment can be started at once.
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