Dentsply Sirona Midwest E Plus User manual

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Nuevo a partir de: 08.2016
Midwest E Plus
Operating Instructions
Notice d‘utilisation
Manual del operador

Dentsply Sirona
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Deutsch
English
FrançaisEspañol
Midwest E Plus
Operating Instructions
Midwest E Plus
Notice d‘utilisation
Midwest E Plus
Manual del operador

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Operating Instructions

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Index Sirona Dental Systems GmbH
Operating Instructions Midwest E Plus
Index
1Before you begin ….................................................................................................. 4
1.1 Structure of the document............................................................................. 4
1.1.1 Labeling of information..................................................................... 4
1.1.2 Formats and symbols....................................................................... 5
1.1.3 Abbreviations/codes used................................................................ 5
1.2 Service life..................................................................................................... 5
1.3 Trade names / registered trade marks of the manufacturers ........................ 5
2Safety information .................................................................................................... 6
3Technical description................................................................................................ 7
3.1 Task .............................................................................................................. 7
3.2 Functionality .................................................................................................. 7
3.3 Structure of Midwest E Plus .......................................................................... 7
3.4 Technical data............................................................................................... 7
4Preparation............................................................................................................... 9
4.1 Initial start-up and longer breaks in use ........................................................ 9
4.2 Prior to starting the work day ........................................................................ 9
4.3 Before each patient ....................................................................................... 9
5Operation.................................................................................................................. 10
5.1 Replacing the instrument .............................................................................. 10
5.2 Inserting and removing bur instruments........................................................ 10
5.3 Plugging in and removing the spray clip for NaCI application....................... 12
6Follow-up.................................................................................................................. 13
6.1 After each treatment session ........................................................................ 13
6.2 At the end of the work day ............................................................................ 13

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Sirona Dental Systems GmbH Index
Operating Instructions Midwest E Plus
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7Conditioning............................................................................................................. 14
7.1 Conduct pre-disinfection............................................................................... 14
7.2 Automated cleaning and disinfecting ........................................................... 14
7.2.1 ... with cleaning and disinfection equipment.................................... 14
7.3 Manual cleaning and disinfection ................................................................. 15
7.4 Manual maintenance.................................................................................... 15
7.4.1 Maintenance of mechanical parts.................................................... 15
7.4.2 Care of the push button chuck ........................................................ 16
7.5 Sterilizing...................................................................................................... 17
8Maintenance............................................................................................................ 18
8.1 Testing the FG clamping system.................................................................. 18
9Spare parts and consumables................................................................................. 19
10 Storage and transport conditions............................................................................. 20
11 Disposal................................................................................................................... 21

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1Before you begin … Sirona Dental Systems GmbH
1.1Structure of the document Operating Instructions Midwest E Plus
1Before you begin …
Complies with state-of-the-arttechnologyand general standards
Midwest E Plus complies state-of-the-art technical regulations. Midwest
E Plus complies with the ISO 14457 standard.
Read/observe _ general
1. Read the operating instructions prior to using Midwest E Plus.
2. Only use Midwest E Plus for the applications described in the
operating instructions.
3. Observe the applicable hygiene standards, occupational safety
regulations and accident prevention measures for Midwest E Plus.
Intended Use Straight and c ontra-angle handpieces
Intended use _ MIDWEST
● Midwest E Plus is intended for use in dental operatory to prepare
dental cavities for restorations such as fillings, and for cleaning teeth.
Contraindications - none
Contraindications None
Target group trained dental personnel
This product is intended only for use by trained dental personnel in dental
practices and laboratories.
Scope of validity
Scope of validity of operating instructions Instrument
These Operating Instructions are valid for the following instruments:
MIDWEST E PLUS = T2 LINE
● Midwest E Plus
1.1 Structure of the document
1.1.1 Labeling of information
Warnings ➢ To prevent injuries, please observe all warnings.
Warnings are labeled as follows:
DANGER! indicates a danger leading to death or serious injury if not
avoided.
WARNING! indicates a danger that may lead to death or serious injury if
not avoided.
CAUTION! indicates a danger that may lead to injury if not avoided.
Instructions for use ➢ To prevent material damage and additional expenses, please
observe all instructions for use.
Instructions for use are labeled as follows:
NOTICE! indicates measures for the prevention of material damage.
IMPORTANT: indicates information on the avoidance of additional
expenses and other important information.
Tip: indicates information for facilitating work.

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Sirona Dental Systems GmbH 1Before you begin …
Operating Instructions Midwest E Plus 1.2Service life
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1.1.2 Formats and symbols
The formats and symbols used in this document have the following
meaning:
1.1.3 Abbreviations/codes used
T1 LINE / T1 CLASSIC
1.2 Service life
When used as intended:
Service life_Sirona
● Non-moving parts have a typical service life of 5 years
● Moving parts have a typical service life of 3 years
No warranty claim can be inferred here, as wear may occur earlier or later
than indicated above depending on use, frequency of sterilization, and
frequency of maintenance.
1.3 Trade names / registered trade marks of the
manufacturers
General
The designations used in this operating instruction with reference to the
instruments are trade names or registered trade names of the
manufacturers:
Kavo
KaVo, Biberach, Germany:
INTRAmatic LUX
● INTRAmatic LUX
✔Prerequisite
1. First action step
2. Second action step
or
➢Alternative action
Result
➢Individual action step
Requests you to do
something.
Use of formats and symbols
[→5].
Identifies a reference to
another text passage and
specifies its page number.
● List Identifies a list.
FG Friction grip bur instrument
CA Contra-angle handpiece bur instrument
HP Straight handpiece bur instrument

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2Safety information Sirona Dental Systems GmbH
Operating Instructions Midwest E Plus
2Safety information
Obligations of the user
Obligations of the user ● Use only fault-free materials that do not deviate from the specified
data [ → 7].
● Protect yourself, patients, and others against any foreseeable
dangers. To do this, follow the safety information.
● Comply with the Intended use of the equipment.
● You should always keep these operating instructions within reach for
further reference.
Cross contamination and spread of infections
Preventing the spread of infections and
cross contamination
Sterilization
Prevent the spread of infections and cross contamination between
patients, users, and third parties. Sterilize equipment after each patient.
Take the appropriate hygiene measures, e.g. wear protective gloves.
Emitted cooling air
Emitted cooling air The cooling air emitted by the coupling of the motor must have a flow rate
of 1.5 - 10 Nl/min.
Keeping cooling air away
To keep the cooling air coming out of the instrument away from the cavity,
silicone disks are available [ → 12].
Instrument head overheating
Instrument head overheating If the instrument is defective, the area around the instrument head may
heat up, thus creating a risk of burning the patient's oral mucosa.
Malfunction / Damage _ Instruments
Malfunction or damage Discontinue use immediately in case of malfunction, unusual or different
sounds or damage. Damaged instruments may cause injury. Notify the
dental dealer or the manufacturer.
Repair_instrument
Repair Do not repair the instrument yourself.
Accessories _ not approved by Sirona
Spare and accessory parts Use only original parts produced by the manufacturer.
First aid _ US
First aid measures in the case of
lubricant accidents
T1 Spray _ MIDWEST Homepage
For details download the Midwest® Plus Aerosol Spray Material Safety
Data Sheet from the Midwest homepage: www.dentsplysirona.com
If you have any questions, please contact your dental dealer or the
manufacturer.
General information: Immediately remove any clothing soiled by the
product.
After inhalation: Supply fresh air; consult doctor in case of
complaints.
After skin contact: If skin irritation continues, consult a doctor.
After eye contact: Rinse opened eye for several minutes under
running water.
After swallowing: If symptoms persist consult doctor.

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Sirona Dental Systems GmbH 3Technical description
Operating Instructions Midwest E Plus 3.1Task
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3Technical description
3.1 Task
Instrument
The instrument transmits the driving power and speed of the electric
motor or air motor to the preparation tool.
3.2 Functionality
Instrument
The transmission ratio of the instrument distorts the operating speed of
the preparation tool.
3.3 Structure of Midwest E Plus
Contra-angle handpiece
Straight handpiece
3.4 Technical data
MIDWEST E Plus
Contra-angle handpiece
A Instrument head
B Push button
C Cooling spray outlet
D Opening of chuck system
E Light aperture
F Color coding for gear ratio
G ISOslider
DE
C
B
A
A Opening of chuck system
B Cooling spray outlet
C Light aperture
D Center part of handpiece
E ISOslider
Midwest E Plus 1:5 1:1 6:1
Transmission ratio (approx. specification) 1:5 1:1 6:1
Color coding for gear ratio red blue green
Maximum motor speed in rpm 40000 40000 40000
Maximum operating speed in rpm ~ 200000 ~ 40000 ~ 6000
Clamping system FG CA/LA CA/LA
Internal cooling media x x x
Anti-retraction valve x x x
Light function x x x

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3Technical description Sirona Dental Systems GmbH
3.4Technical data Operating Instructions Midwest E Plus
Straight handpiece
Bur instruments FG/CA/HP_Midwest
Bur instruments
Treatment center _ Instrument
Treatment center
Apex measurement function - - -
Instrument coupling INTRAmatic LUX®INTRAmatic LUX®INTRAmatic LUX®
Midwest E Plus 1:5 1:1 6:1
Midwest E Plus 1:1 S
Transmission ratio (approx.
specification)
1:1
Color coding for gear ratio blue
Maximum motor speed in rpm 40000
Maximum operating speed in rpm ~ 40000
Clamping system HP / CA/LA
Internal cooling media x
Anti-retraction valve x
Light function x
Apex measurement function -
Instrument coupling INTRAmatic LUX®
FG CA/LA HP
Shank diameter in mm 1.59 - 1.60 2.334 - 2.35 2.334 - 2.35
Maximum total length in mm 25 34 50
Maximum working diameter in mm 2.1 - -
Standard ISO 1797-1
ISO 2157
ISO 1797-1 ISO 1797-1
Midwest E Plus
Spray air pressure in bar 2.7
Spray water pressure in bar 2.0
Maximum water temperature in °C 40
Recommended water content in spray in ml/min > 50

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Sirona Dental Systems GmbH 4Preparation
Operating Instructions Midwest E Plus 4.1Initial start-up and longer breaks in use
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4Preparation
4.1 Initial start-up and longer breaks in use
Instrument
➢Sterilize the instrument and accessories prior to startup.
➢Clean and maintain the instrument after longer breaks in use.
4.2 Prior to starting the work day
➢Purge the water and air channels for 30 seconds.
4.3 Before each patient
Preparation _ Instrument
1. Purge the water and air channels for 30 seconds.
2. CAUTION! Keep the motor running.
Insert the instrument [ → 10].
3. Insert the bur instrument [ → 10].
4. Set a sufficient amount of cooling water (> 50 ml/min).
5. Use filtered water only (< 50 µm).
6. Check the nozzles for blockages and lime deposits, for example, and
clean the nozzles if necessary.
Overheating at the preparation site
CAUTION! Insufficient cooling leads to overheating of the preparation
site and damage to the tooth substance. Ensure that the water content is
> 50ml/min.

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5Operation Sirona Dental Systems GmbH
5.1Replacing the instrument Operating Instructions Midwest E Plus
5Operation
Use only undamaged burs
NOTICE! Use only burs and diamond polishers that are sharp and
undamaged. Use clean burs and diamond polishers to avoid dirt in the
clamping system.
Clamping the bur _ instrument
CAUTION! A loose or partially removed bur instrument can come loose
from the head or break off. Risk of injury! Therefore the instrument must
only be used when the bur instrument is securely clamped at least 10 mm
deep.
Only operate when the clamping system is closed
CAUTION! The handpiece must only be operated with the clamping
system closed.
Overheating at the preparation site
CAUTION! Insufficient cooling leads to overheating of the preparation
site and damage to the tooth substance. Ensure that the water content is
> 50ml/min.
Zurückziehen der Wange _ Instrument
CAUTION! Do not pull the patient's cheek back with the contra-angle
handpiece while the motor is running. This would actuate the pushbutton,
thus creating a risk of burning the patient's oral mucosa.
Red contra-angle handpiece
CAUTION! Always operate the contra-angle handpieces with cooling
spray when marked red!
Observing manufacturer documentation
IMPORTANT: For application details and operating data of the different
preparation tools, please refer to the information provided by the
manufacturer.
5.1 Replacing the instrument
Motor at standstill
CAUTION! The instrument should only be fitted or removed when the
motor is at standstill.
Instruments with light only on motors with light
NOTICE! Do not use instruments with light on motors without light.
Attaching the Midwest E Plus instrument
with ISO slider
✔The motor is at a standstill.
1. Insert the instrument until it snaps into place.
2. When using a motor with a light groove (A): turn the instrument until
the ISO slider clicks into place.
Removing the instrument
✔The motor is at a standstill.
➢Detach the instrument. Do not pull on the supply hose while doing
this.
5.2 Inserting and removing bur instruments
Free movement of the pushbutton
IMPORTANT: Check the push button to make sure it moves freely!
Use only undamaged burs
NOTICE! Use only burs and diamond polishers that are sharp and
undamaged. Use clean burs and diamond polishers to avoid dirt in the
clamping system.
Clamping the bur _ instrument
CAUTION! A loose or partially removed bur instrument can come loose
from the head or break off. Risk of injury! Therefore the instrument must
only be used when the bur instrument is securely clamped at least 10 mm
deep.

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Sirona Dental Systems GmbH 5Operation
Operating Instructions Midwest E Plus 5.2Inserting and removing bur instruments
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Only operate when the clamping system is closed
CAUTION! The handpiece must only be operated with the clamping
system closed.
Inserting the friction grip bur instrument
Attach and Remove FG
✔The motor is at a standstill.
1. Press the button and slide the bur instrument in until it reaches the
stop.
2. Pull on the bur instrument to check that it is firmly attached.
Removing the friction grip bur instrument
✔The bur instrument must not be moving.
➢Press the button and remove the bur instrument.
Use WB for contra-angle handpiece
Inserting the contra-angle handpiece bur
✔The motor is at a standstill.
1. Insert the bur without pushing the button.
2. Turn the bur back and forth gently until it snaps into place.
3. Pull and turn the bur to check that it is firmly in place.
Removing the contra-angle handpiece bur
✔The bur must not be moving.
➢Press the button and remove the bur.
Straight handpi ece
Inserting the straight handpiece bur instrument
LINE / CLASSIC
✔The motor has come to a stop.
1. Turn the center part of the handpiece in the direction of the arrow (A)
up to the stop.
2. When using the contra-angle handpiece bur instrument (C): insert the
pin (B) into the handpiece, with the slotted end first. The pin
compensates for the difference in length between straight and contra-
angle handpiece bur instruments.
3. Insert the bur instrument as far as it will go.
4. Clamp the bur instrument by turning the center part of the handpiece
in direction (D) up to the stop.
When the two marks (E) are located opposite each other, the bur
instrument is clamped.
When using handpiece bur instruments with detached shaft:
ensure that the detached shaft is not lying against the chuck
opening (F).
BC
A
EF
D

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5Operation Sirona Dental Systems GmbH
5.3Plugging in and removing the spray clip for NaCI application Operating Instructions Midwest E Plus
5. Then pull and turn the bur instrument to check that it is firmly seated.
Removing the pin
1. Screw in the supplied tool (A).
2. Open the clamping system.
3. Pull out the pin.
5.3 Plugging in and removing the spray clip for NaCI
application
Plugging in the spray clip
✔The spray water supply at the motor or treatment center is turned off.
1. Plug the silicone hose (D) into the tubule on the spray clip for saline
solutions (B/C).
2. Plug the spray clip into the instrument.
Tip: Use the silicone disks (A), to hold back the cooling air emitted from
the instrument from the preparation site and to direct it away laterally.
Removing the spray clip
1. Remove the spray clip from the instrument.
2. Flush out the spray clip and silicone hose with clear water.
A

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Sirona Dental Systems GmbH 6Follow-up
Operating Instructions Midwest E Plus 6.1After each treatment session
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6Follow-up
6.1 After each treatment session
Immediately after treatment
NOTICE! Condition immediately, or at the latest, one hour after treatment.
Using the T1 spray
NOTICE! Only use Midwest® Plus Aerosol Spray.
Instruments _ bur instrument
✔The bur instrument must not be moving.
✔Wear appropriate protective clothing.
1. Purge the water and air channels on the treatment center for 30
seconds.
2. Remove the bur instrument with tweezers.
3. Pre-disinfect directly at the treatment center [ → 14].
4. Detach the instrument from the motor.
5. Transport the instrument to the hygiene room in a suitable transport
container.
6. Conduct automatic conditioning [ → 14]. Manual conditioning [ → 15] is
possible in exceptional cases if the national/local regulations are
followed.
7. Apply spray to the instrument [ → 15].
8. Sterilize the instrument and accessories [ → 17].
6.2 At the end of the work day
Instrument
➢Apply spray to the instrument [ → 15].
Remove the motor at night
NOTICE! Do not leave any instruments on the motor overnight, in order
to prevent oil from leaking into the electric motor. Never lubricate the
electric motor.

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7Conditioning Sirona Dental Systems GmbH
7.1Conduct pre-disinfection Operating Instructions Midwest E Plus
7Conditioning
7.1 Conduct pre-disinfection
Pre-disinfection _ Instrument
✔Wear appropriate protective clothing.
✔All disinfectants must be approved in your country and have proven
bactericidal, fungicidal and virucidal properties. Only use
disinfectants with no protein-fixing properties.
1. Spray the surface with disinfectant.
2. Wipe the disinfectant off with a cloth.
For further conditioning, the instrument should be dry and free of
residue.
Disinfectants in USA und Canada
In the USA and Canada, for example, you can use:
●CAVICIDE
®
● CAVIWIPES ™
Please observe the manufacturer's instructions for using instrument
disinfectants.
7.2 Automated cleaning and disinfecting ...
7.2.1 ... with cleaning and disinfection equipment
Instrument
The instrument can also be cleaned and disinfected in a suitable piece of
cleaning and disinfection equipment.
Cleaning and disinfection equipment
The cleaning and disinfection equipment used must be approved by its
manufacturer for the cleaning and disinfection of dental instruments and
comply with EN ISO 15883-1 (e.g. 95°C (203°F) and 10 min. holding
time).
For further details, refer to the operating instructions supplied with the
unit.
Kontrolle _ Instrument
✔The instrument is conditioned with a cleaning and disinfection device.
1. Check whether the instrument is clean after conditioning under good
lighting (min. 500 lux) and color rendering index (min. 80 Ra).
2. If it is still dirty, repeat the process.
For further conditioning, the instrument should be dry and free of
residue.
3. Blow the instrument out with max. 3 bar.
4. Manual care of mechanical parts [ → 15].
5. Manual care of the push button chuck [ → 16].
6. Pack the instrument in packaging material suitable for sterilization
and storage. e.g. paper/plastic composite packaging.
7. Sterilize the instrument [ → 17].

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Sirona Dental Systems GmbH 7Conditioning
Operating Instructions Midwest E Plus 7.3Manual cleaning and disinfection
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7.3 Manual cleaning and disinfection
Manual conditioning is possible in exceptional cases
IMPORTANT: Manual conditioning is possible in exceptional cases if the
national/regional regulations are followed. The national/regional
regulations are to be checked before.
Immediately after treatment
NOTICE! Condition immediately, or at the latest, one hour after treatment.
NOTICE! Never clean in an ultrasound bath!
NOTICE! Never immerse in disinfectant solution!
Using the T1 spray
NOTICE! Only use Midwest® Plus Aerosol Spray.
Use soft brush
IMPORTANT: Use a soft, clean, and disinfected brush for cleaning.
Procedure _ Instrument without integrated spray _ without Alpro
✔Wear appropriate protective clothing.
✔All disinfectants must be approved in your country and have proven
bactericidal, fungicidal and virucidal properties. Only use
disinfectants with no protein-fixing properties.
1. Brush the instrument under running water (< 38 °C, < 100 °F, at least
drinking water quality) and good lighting (min. 500 lux) and color
rendering index (min. 80 Ra) until no more dirt can be seen, for at
least 10 seconds.
2. Flush the drive channels with spray.
3. Clean and disinfect spray channels with suitable agents and adapters
according to manufacturer's instructions.
4. Blow spray channels with suitable adapters out with 2.5 - 3 bar until
no more moisture displaces, but at least 10 seconds.
5. Conduct thermal disinfection or unwrapped steam sterilization.
6. Maintain mechanical parts manually [ → 15].
7. Maintain the push button chuck manually [ → 16].
8. Pack the instrument in packaging material suitable for sterilization
and storage. e.g. paper/plastic composite packaging.
9. Conduct sterilization [ → 17].
7.4 Manual maintenance
7.4.1 Maintenance of mechanical parts
Intervals
Daily at noon and in the evening
● At least every noon and evening
● Prior to each sterilization
after every thermal disinfection
● After every thermal disinfection without integrated maintenance
Required accessories
Required accessories
Spray adapter Midwest E Plus/ E Pro
Using the T1 spray
NOTICE! Only use Midwest® Plus Aerosol Spray.
B
A
A Spray adapter
B Midwest® Plus Aerosol Spray

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7Conditioning Sirona Dental Systems GmbH
7.4Manual maintenance Operating Instructions Midwest E Plus
Process
Maintenance _ Instrument
✔The spray adapter is disinfected.
✔The O-ring on the spray adapter is intact.
1. Fit the spray adapter onto the nozzle of the spray can.
2. Insert the instrument until it snaps into place and hold it.
3. Spray the instrument for 1 - 2 seconds.
IMPORTANT: Hold the spray can upright.
4. Wipe any spray that comes out with a disinfection cloth.
5. Repeat the process until the spray is clear.
7.4.2 Care of the push button chuck
Sirona
New
Use Midwest® Plus Aerosol Spray on the push button chuck to remove
deposits and ensure proper functioning of the clamping system.
Interval
Interval
● At least once a week
Required accessories
T1 spray
Using the T 1 spray
NOTICE! Only use Midwest® Plus Aerosol Spray.
Procedure
Vorgehensweise _ Winkelstück
✔The instrument is clean and disinfected.
1. Press the contra-angle handpiece head with the chuck firmly against
the spray can nozzle.
2. Spray the chuck for 1 - 2 seconds.
IMPORTANT: Hold the spray can upright.
3. Wipe any spray that comes out with a disinfection cloth.
AB
A Black nozzle insert
B Midwest® Plus Aerosol Spray