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Install the MD on the motor connection until ratcheting. For this,
keep the motor and the MD in the same axle. The motor must be at
a complete standstill.
Apply light traction to the MD to check that it is properly attached to
the motor connection.
Operational test by switching on the motor; start at low speed, then
gradually increase, outside of the patient’s mouth.
If you notice overheating, irregularities, vibrations, abnormal noises
when using the MD, immediately contact your AS.
5.2 – Adjusting the declutching ring (Fig. 3)
The torque control system cannot in any way be a substitute for the
practitioner’s assessment and experience.
Increasing the declutching threshold :
• Push ring G towards Head E on the MD, notch by notch, until the
right position is reached.
Decreasing the declutching threshold :
• Pull ring G towards the body H on the MD, notch by notch, until
the right position is reached.
To adjust the declutching threshold (position 1, 2, 3, 4), start by
setting it at its minimum torque (position 1).
If the MD keeps declutching, move up to a higher torque (Positions
2 to 4).
When the radicular instrument stops, a slight clicking sound may
be heard; in that case, lower the pressure on the MD.
In the event that the instrument becomes wedged in the root canal,
reverse direction of the motor rotation.
5.3 – Disconnection of motor
Remove the MD by keeping it in the motor axle.
In the event of prolonged non use of the device, do not leave
it connected to the motor. Risk of damaging the motor.
5.4 – Connection/disconnection of rotary instrument
For all handling of rotary instruments, wear protective
gloves. Risk of cutting and contamination. The tool must only
be handled when the motor is at a standstill.
Only use rotary instruments in good condition. Risk of necrosis.
Insertion of rotary instrument
Contra angle with push button :
• Insert the rotary instrument into the head of the MD until it hits
the stop.
• Turn the rotary instument whilst maintaining a slight axial pres-
sure until it clicks (Fig. 4).
Contra angle with latch :
• Open the latch.
• Insert the rotary instrument into the head of the MD until it hits
the stop.
• Turn the rotary instument whilst maintaining a slight axial pres-
sure until it reaches the running slot on the drive plate.
• Lock the latch (Fig. 5).
For tool replacement: check the good condition of the rotary
tool with light axial traction.
MD
lifecycle
If used in a proper manner, all MD parts have a lifecycle corre-
sponding to 250 sterilisation cycles.
However, these indications are not a warranty because wear may
appear prematurely, depending on how the MD is maintained
(cleaning and sterilisation).
VI. HYGIENE AND MAINTENANCE
Sterilisation of medical devices must be done by properly
trained and protected staff, in compliance with current
regulations. The sterilisation protocol must be appropriate to the
infectious risk.
Wear appropriate protective clothing: risk of infection and injury.
Only use products for the maintenance of medico-surgical equip-
ment compatible with aluminium. Detergents and alcaline type
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solutions (pH > 7) damage aluminium based instruments. Forbid
antiseptics that are intended for use on skin and mucous.
Forbid products containing aldehyde, alcohol or other products
likely to bind proteins.
For each product used: refer to the manufacturer’s instruc-
tions.
Comply with the concentrations, exposure durations, and life span
of products. Do not mix the products and follow the instructions
for their disposal.
6.1 – Preparation of
MD
in the place of use
To be done immediately after surgery (maximum time of 2 hrs):
• Disconnect the MD from the motor,
• Remove the rotary tool (see § 5.6),
• Remove the largest organic contaminants with disinfectant
wipes.
6.2 – Preparation for sterilisation
• Disconnect the MD from the motor,
• Remove the rotary instrument.
6.2.1 – Manual preparation for sterilisation
By brushing:
• Brush each part under running water with a soft
brush.
• Wipe a disinfectant wipe over each of the MD’s subunits,
• Or Spray disinfectant on the MD and wipe with a clean cloth.
Rinsing and drying:
• Rinse well
2
,then dry each part.
6.2.2 - Automatic preparation for sterilisation
• Only in a washing and disinfecting machine, appropriate
for the treatment of this type of MD. Follow the manufac-
turer’s instructions for the device.
• Place the assembled MD on the nozzle for MD.
• The disinfection thermo cycle must be at least 10 minutes at 93°
C (203°F).
• Check there is no residue and that all the parts of the MD are
completely dry at the end of the cycle.
• If the washing and disinfecting machine is near the place
of use, it is possible to also do step 6.1.
6.3 - Lubrication
Follow the spray lubricant manufacturer’s instructions.
Wear appropriate protective clothing (splashes, etc.).
Keep away from all sources of heat or ignition. In particular: do not
smoke. Risk of inflammation.
After cleaning and before each sterilisation (once a day minimum):
• Remove the rotary instrument,
• Insert the tip to the back of the MD (Fig 6),
• Cover the head of the MD with a soft cloth or paper or a wipe,
• Point the head towards the bottom,
• Spray several times by firmly holding the instrument,
• Wipe excess oil with a cloth or a wipe.
6.4 – Operational test
• Connect the MD to a micro-motor, point the head towards the
bottom.
• Turn the micro-motor on at low speed for 30s. Gradually bring
up to maximum speed.
• Wipe excess oil with a cloth or a wipe
If you notice overheating, irregularities, vibrations, abnor-
mal noises when using the MD, immediately contact your
AS.
6.5 - Sterilisation
• The instruments are to be sterilised before first use and
after each use.
• Only sterilise cleaned, lubricated and tested instruments.
• We recommend sterilisation that complies with the EN 13060
standard, class B. All other methods are forbidden.
• Independently put each MD in a sterilisation sachet that com-
plies with current standards and the size of the MD.
• Comply with the space between the sachets and do not overload
the autoclave.
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: Temperature < 38°C, distilled water is recommended instead of running water if this has too
much chlorine (cf. FD98-135 standard).
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